WIP: loading indicator

Reviewed-on: #34

.gitea/workflows/frontend_build-android.yaml

@@ -6,7 +6,7 @@ on:
       - frontend/**
 
 
-name: Build and release APK
+name: Build and release debug APK
 
 jobs:
   build:
@@ -55,7 +55,7 @@ jobs:
         ls -lah android
       working-directory: ./frontend
 
-    - run: flutter build apk --release --split-per-abi --build-number=${{ gitea.run_number }}
+    - run: flutter build apk --debug --split-per-abi --build-number=${{ gitea.run_number }}
       working-directory: ./frontend
 
     - name: Upload APKs to artifacts

.vscode/settings.json

@@ -0,0 +1,3 @@
+{
+    "cmake.ignoreCMakeListsMissing": true
+}

backend/README.md

@@ -1,12 +1,37 @@
 # Backend
 
-This repository contains the backend code for the application. It utilizes FastAPI that allows to quickly create a RESTful API that exposes the endpoints of the route optimizer.
-
+This repository contains the backend code for the application. It utilizes **FastAPI** to quickly create a RESTful API that exposes the endpoints of the route optimizer.
 
 ## Getting Started
-- The code of the python application is located in the `src` directory.
-- Package management is handled with `pipenv` and the dependencies are listed in the `Pipfile`.
-- Since the application is aimed to be deployed in a container, the `Dockerfile` is provided to build the image.
+
+### Directory Structure
+- The code for the Python application is located in the `src` directory.
+- Package management is handled with **pipenv**, and the dependencies are listed in the `Pipfile`.
+- Since the application is designed to be deployed in a container, the `Dockerfile` is provided to build the image.
+
+### Setting Up the Development Environment
+
+To set up your development environment using **pipenv**, follow these steps:
+
+1. Install `pipenv` by running:
+    ```bash
+    sudo apt install pipenv
+    ```
+
+2. Create and activate a virtual environment:
+    ```bash
+    pipenv shell
+    ```
+
+3. Install the dependencies listed in the `Pipfile`:
+    ```bash
+    pipenv install
+    ```
+
+4. The virtual environment will be created under:
+    ```bash
+    ~/.local/share/virtualenvs/...
+    ```
 
 ### Deployment
 To deploy the backend docker container, we use kubernetes. Modifications to the backend are automatically pushed to a two-stage environment through the CI pipeline. See [deployment/README](deployment/README.md] for further information.

backend/src/parameters/amenity_selectors.yaml

@@ -45,7 +45,6 @@ sightseeing:
     - gallery
     - artwork
     - aquarium
-
   historic: ''
   amenity:
     - planetarium

backend/src/tester.py

@@ -23,7 +23,7 @@ def test(start_coords: tuple[float, float], finish_coords: tuple[float, float] =
         sightseeing=Preference(type='sightseeing', score = 5),
         nature=Preference(type='nature', score = 5),
         shopping=Preference(type='shopping', score = 5),
-        max_time_minute=100,
+        max_time_minute=15,
         detour_tolerance_minute=0
     )
 
@@ -74,6 +74,7 @@ def test(start_coords: tuple[float, float], finish_coords: tuple[float, float] =
 # test(tuple((48.8344400, 2.3220540)))       # Café Chez César 
 # test(tuple((48.8375946, 2.2949904)))       # Point random
 # test(tuple((47.377859, 8.540585)))         # Zurich HB
-# test(tuple((45.758217, 4.831814)))      # Lyon Bellecour
-test(tuple((48.5848435, 7.7332974)))      # Strasbourg Gare
+# test(tuple((45.758217, 4.831814)))         # Lyon Bellecour
+# test(tuple((48.5848435, 7.7332974)))       # Strasbourg Gare
 # test(tuple((48.2067858, 16.3692340)))      # Vienne
+test(tuple((48.084588, 7.280405)))         # Turckheim 

backend/src/utils/landmarks_manager.py

@@ -94,6 +94,8 @@ class LandmarkManager:
         if preferences.shopping.score != 0:
             score_function = lambda score: score * 10 * preferences.shopping.score / 5
             current_landmarks = self.fetch_landmarks(bbox, self.amenity_selectors['shopping'], preferences.shopping.type, score_function)
+            # set time for all shopping activites :
+            for landmark in current_landmarks : landmark.duration = 45
             all_landmarks.update(current_landmarks)
 
 
@@ -246,11 +248,11 @@ class LandmarkManager:
                 image_url = None
                 name_en = None
 
-                # remove specific tags
+                # Adjust scoring
                 skip = False
                 for tag in elem.tags().keys():
                     if "pay" in tag:
-                        # payment options are a good sign
+                        # payment options are misleading and should not count for the scoring.
                         score += self.pay_bonus
 
                     if "disused" in tag:
@@ -263,10 +265,12 @@ class LandmarkManager:
                         score += self.wikipedia_bonus
 
                     if "viewpoint" in tag:
+                        # viewpoints must count more
                         score += self.viewpoint_bonus
                         duration = 10
 
                     if "image" in tag:
+                        # images must count more
                         score += self.image_bonus
 
                     if elem_type != "nature":
@@ -282,6 +286,7 @@ class LandmarkManager:
                             skip = True
                             break
 
+                    # Extract image, website and english name
                     if tag in ['website', 'contact:website']:
                         website_url = elem.tag(tag)
                     if tag == 'image':
@@ -295,10 +300,9 @@ class LandmarkManager:
                 score = score_function(score)
                 if "place_of_worship" in elem.tags().values():
                     score = score * self.church_coeff
-                    duration = 15
+                    duration = 10
                 
-                elif "museum" in elem.tags().values():
-                    score = score * self.church_coeff
+                elif "museum" in elem.tags().values() or "aquarium" in elem.tags().values() or "planetarium" in elem.tags().values():
                     duration = 60
                 
                 else:

backend/src/utils/optimizer.py

@@ -487,7 +487,7 @@ class Optimizer:
 
         # Raise error if no solution is found
         if not res.success :
-            raise ArithmeticError("No solution could be found, the problem is overconstrained. Please adapt your must_dos")
+            raise ArithmeticError("No solution could be found, the problem is overconstrained. Try with a longer trip (>30 minutes).")
 
         # If there is a solution, we're good to go, just check for connectiveness
         order, circles = self.is_connected(res.x)

backend/src/utils/refiner.py

@@ -2,6 +2,7 @@ import yaml, logging
 
 from shapely import buffer, LineString, Point, Polygon, MultiPoint, concave_hull
 from math import pi
+from typing import List
 
 from structs.landmark import Landmark
 from . import take_most_important, get_time_separation
@@ -133,6 +134,21 @@ class Refiner :
             i += 1
     
         return tour
+    
+    def integrate_landmarks(self, sub_list: List[Landmark], main_list: List[Landmark]) :
+        """
+        Inserts 'sub_list' of Landmarks inside the 'main_list' by leaving the ends untouched.
+        
+        Args: 
+            sub_list    : the list of Landmarks to be inserted inside of the 'main_list'.
+            main_list   : the original list with start and finish.
+
+        Returns:
+            the full list.
+        """
+        sub_list.append(main_list[-1])          # add finish back
+        return main_list[:-1] + sub_list        # create full set of possible landmarks
+
 
 
     def find_shortest_path_through_all_landmarks(self, landmarks: list[Landmark]) -> tuple[list[Landmark], Polygon]:
@@ -253,6 +269,11 @@ class Refiner :
         except :
             better_tour_poly = concave_hull(MultiPoint(coords))  # Create concave hull with "core" of tour leaving out start and finish
             xs, ys = better_tour_poly.exterior.xy
+            """ 
+            ERROR HERE : 
+                Exception has occurred: AttributeError
+                'LineString' object has no attribute 'exterior'
+            """
 
 
         # reverse the xs and ys
@@ -315,26 +336,30 @@ class Refiner :
 
         self.logger.info(f"Using {len(minor_landmarks)} minor landmarks around the predicted path")
 
-        # full set of visitable landmarks
-        full_set = base_tour[:-1] + minor_landmarks   # create full set of possible landmarks (without finish)
-        full_set.append(base_tour[-1])                # add finish back
+        # Full set of visitable landmarks.
+        full_set = self.integrate_landmarks(minor_landmarks, base_tour)     # could probably be optimized with less overhead
 
-        # get a new tour
+        # Generate a new tour with the optimizer.
         new_tour = self.optimizer.solve_optimization(
             max_time = max_time + detour,
             landmarks = full_set, 
             max_landmarks = self.max_landmarks_refiner
         )
 
+        # If unsuccessful optimization, use the base_tour.
         if new_tour is None:
             self.logger.warning("No solution found for the refined tour. Returning the initial tour.")
             new_tour = base_tour
 
+        # If only one landmark, return it.
+        if len(new_tour) < 4 :
+            return new_tour
 
-        # Find shortest path using the nearest neighbor heuristic
+        # Find shortest path using the nearest neighbor heuristic.
         better_tour, better_poly = self.find_shortest_path_through_all_landmarks(new_tour)
 
-        # Fix the tour using Polygons if the path looks weird
+        # Fix the tour using Polygons if the path looks weird. 
+        # Conditions : circular trip and invalid polygon.
         if base_tour[0].location == base_tour[-1].location and not better_poly.is_valid :
             better_tour = self.fix_using_polygon(better_tour)
 

backend/test.py

@@ -0,0 +1,111 @@
+import numpy as np
+
+def euclidean_distance(p1, p2):
+    print(p1, p2)
+    return np.sqrt((p1[0] - p2[0])**2 + (p1[1] - p2[1])**2)
+
+
+def maximize_score(places, max_distance, fixed_entry, top_k=3):
+    """
+    Maximizes the total score of visited places while staying below the maximum distance.
+    
+    Parameters:
+    places (list of tuples): Each tuple contains (score, (x, y), location).
+    max_distance (float): The maximum distance that can be traveled.
+    fixed_entry (tuple): The place that needs to be visited independently of its score.
+    top_k (int): Number of top candidates to consider in each iteration.
+    
+    Returns:
+    list of tuples: The visited places.
+    float: The total score of the visited places.
+    """
+    # Initialize total distance and score
+    total_distance = 0
+    total_score = 0
+    visited_places = []
+
+    # Add the fixed entry to the visited list
+    score, (x, y), _ = fixed_entry
+    visited_places.append(fixed_entry)
+    total_score += score
+
+    # Remove the fixed entry from the list of places
+    remaining_places = [place for place in places if place != fixed_entry]
+
+    # Sort remaining places by score-to-distance ratio
+    
+    remaining_places.sort(key=lambda p: p[0] / euclidean_distance((x, y), (p[1][0], p[1][1])), reverse=True)
+
+    # Add places to the visited list if they don't exceed the maximum distance
+    current_location = (x, y)
+    while remaining_places and total_distance < max_distance:
+        # Consider top_k candidates
+        candidates = remaining_places[:top_k]
+        best_candidate = None
+        best_score_increase = -np.inf
+
+        for candidate in candidates:
+            score, (cx, cy), location = candidate
+            distance = euclidean_distance(current_location, (cx, cy))
+            if total_distance + distance <= max_distance:
+                score_increase = score / distance
+                if score_increase > best_score_increase:
+                    best_score_increase = score_increase
+                    best_candidate = candidate
+
+        if best_candidate:
+            visited_places.append(best_candidate)
+            total_distance += euclidean_distance(current_location, best_candidate[1])
+            total_score += best_candidate[0]
+            current_location = best_candidate[1]
+            remaining_places.remove(best_candidate)
+        else:
+            break
+
+    return visited_places, total_score
+
+# Example usage
+places = [
+    (10, (0, 0), 'A'),
+    (8, (4, 2), 'B'),
+    (15, (6, 4), 'C'),
+    (7, (5, 6), 'D'),
+    (12, (1, 8), 'E'),
+    (14, (34, 10), 'F'),
+    (15, (65, 12), 'G'),
+    (12, (3, 14), 'H'),
+    (12, (15, 1), 'I'),
+    (7, (17, 4), 'J'),
+    (12, (3, 3), 'K'),
+    (4, (21, 22), 'L'),
+    (12, (23, 24), 'M'),
+    (4, (25, 26), 'N'),
+    (2, (27, 28), 'O'),
+]
+fixed_entry = (10, (0, 0), 'A')
+max_distance = 50
+
+visited_places, total_score = maximize_score(places, max_distance, fixed_entry)
+print("Visited Places:", visited_places)
+print("Total Score:", total_score)
+
+import matplotlib.pyplot as plt
+
+# Plot the route
+def plot_route(visited_places):
+    x_coords = [place[1][0] for place in visited_places]
+    y_coords = [place[1][1] for place in visited_places]
+    labels = [place[2] for place in visited_places]
+
+    plt.figure(figsize=(10, 6))
+    plt.plot(x_coords, y_coords, marker='o', linestyle='-', color='b')
+    for i, label in enumerate(labels):
+        plt.text(x_coords[i], y_coords[i], label, fontsize=12, ha='right')
+
+    plt.title('Route of Visited Places')
+    plt.xlabel('X Coordinate')
+    plt.ylabel('Y Coordinate')
+    plt.grid(True)
+    plt.savefig('route.png')
+
+plot_route(visited_places)

frontend/.github/workflows/build_app_android.yaml

@@ -37,7 +37,7 @@ jobs:
           REF_NAME: ${{ github.ref_name }}
         run:
           # remove the 'v' prefix from the tag name
-          echo "VERSION_NAME=${REF_NAME//v}" >> $GITHUB_ENV
+          echo "BUILD_NAME=${REF_NAME//v}" >> $GITHUB_ENV
 
       - name: Load secrets from github
         run: |
@@ -53,4 +53,6 @@ jobs:
       - name: Run fastlane lane
         run: bundle exec fastlane deploy_testing
         working-directory: android
-        # the environment variable VERSION_NAME is implicitly available
+        env:
+          BUILD_NUMBER: ${{ github.run_number }}
+          # BUILD_NAME is implicitly available

frontend/android/app/build.gradle

@@ -30,14 +30,19 @@ if (flutterVersionName == null) {
 
 
 def secretPropertiesFile = rootProject.file('secrets.properties')
+def fallbackPropertiesFile = rootProject.file('fallback.properties')
 def secretProperties = new Properties()
 
 if (secretPropertiesFile.exists()) {
     secretPropertiesFile.withReader('UTF-8') { reader ->
         secretProperties.load(reader)
     }
+} else if (fallbackPropertiesFile.exists()) {
+    fallbackPropertiesFile.withReader('UTF-8') { reader ->
+        secretProperties.load(reader)
+    }
 } else {
-    throw new GradleException("Secrets file secrets.properties not found")
+    throw new GradleException("Secrets file (secrets.properties, fallback.properties) not found")
 }
 
 

frontend/android/fallback.properties

@@ -1 +1,3 @@
+# This file mirrors the state of secrets.properties as a reference for the developer.
+# And as a fallback for build.gradle
 MAPS_API_KEY=Key

frontend/android/fastlane/Fastfile

@@ -5,22 +5,28 @@ default_platform(:android)
 
 platform :android do
 
-  desc "Deploy a new version as a preview version"
+  desc "Deploy a new version to closed testing"
   lane :deploy_testing do
-    version_name = ENV["VERSION_NAME"]
+    build_name = ENV["BUILD_NAME"]
+    build_number = ENV["BUILD_NUMBER"]
 
     sh(
       "flutter",
       "build",
       "appbundle",
       "--release",
-      "--build-name=#{version_name}",
+      "--build-name=#{build_name}",
+      "--build-number=#{build_number}",
       )
     
     upload_to_play_store(
       track: 'alpha',
       skip_upload_apk: true,
       skip_upload_changelogs: true,
+      aab: "../build/app/outputs/bundle/release/app-release.aab",
+      # this is the default output of flutter build ... --release
+      # in particular this the build folder lies in the flutter root folder
+      # this is the parent folder for the android folder
       )
   end
 
@@ -28,6 +34,7 @@ platform :android do
   lane :deploy_release do
     gradle(
       task: "clean assembleRelease",
+      # todo update to a flutter call
       properties: {
         # loaded from environment
         "android.injected.version.name" => ENV["VERSION_NAME"],
@@ -37,6 +44,10 @@ platform :android do
       track: "production",
       skip_upload_apk: true,
       skip_upload_changelogs: true,
+      aab: "../build/app/outputs/bundle/release/app-release.aab",
+      # this is the default output of flutter build ... --release
+      # in particular this the build folder lies in the flutter root folder
+      # this is the parent folder for the android folder
     )
   end
 end

frontend/lib/main.dart

@@ -1,10 +1,12 @@
+import 'package:anyway/utils/get_first_page.dart';
+import 'package:anyway/utils/load_trips.dart';
 import 'package:flutter/material.dart';
 import 'package:anyway/constants.dart';
-import 'package:anyway/layout.dart';
 
 void main() => runApp(const App());
 
 final GlobalKey<ScaffoldMessengerState> rootScaffoldMessengerKey = GlobalKey<ScaffoldMessengerState>();
+final SavedTrips savedTrips = SavedTrips();
 
 class App extends StatelessWidget {
   const App({super.key});
@@ -14,7 +16,7 @@ class App extends StatelessWidget {
   Widget build(BuildContext context) {
     return MaterialApp(
       title: APP_NAME,
-      home: BasePage(mainScreen: "map"),
+      home: getFirstPage(),
       theme: APP_THEME,
       scaffoldMessengerKey: rootScaffoldMessengerKey
     );

frontend/lib/modules/current_trip_landmarks_list.dart

@@ -5,7 +5,6 @@ import 'package:flutter/material.dart';
 import 'package:anyway/modules/landmark_card.dart';
 import 'package:anyway/structs/landmark.dart';
 import 'package:anyway/structs/trip.dart';
-import 'package:anyway/main.dart';
 
 
 
@@ -25,30 +24,7 @@ List<Widget> landmarksList(Trip trip) {
 
   for (Landmark landmark in trip.landmarks) {
     children.add(
-      Dismissible(
-        key: ValueKey<int>(landmark.hashCode),
-        child: LandmarkCard(landmark),
-        dismissThresholds: {DismissDirection.endToStart: 0.95, DismissDirection.startToEnd: 0.95},
-        onDismissed: (direction) {
-          log('Removing ${landmark.name}');
-          trip.removeLandmark(landmark);
-
-          rootScaffoldMessengerKey.currentState!.showSnackBar(
-            SnackBar(content: Text("We won't show ${landmark.name} again"))
-          );
-        },
-
-        background: Container(color: Colors.red),
-        secondaryBackground: Container(
-          color: Colors.red,
-          child: Icon(
-            Icons.delete,
-            color: Colors.white,
-          ),
-          padding: EdgeInsets.all(15),
-          alignment: Alignment.centerRight,
-        ),
-      )
+      LandmarkCard(landmark, trip),
     );
 
     if (landmark.next != null) {

frontend/lib/modules/current_trip_loading_indicator.dart

@@ -1,3 +1,5 @@
+import 'dart:ui';
+
 import 'package:flutter/material.dart';
 import 'package:auto_size_text/auto_size_text.dart';
 
@@ -15,46 +17,116 @@ class CurrentTripLoadingIndicator extends StatefulWidget {
   State<CurrentTripLoadingIndicator> createState() => _CurrentTripLoadingIndicatorState();
 }
 
+
+Widget bottomLoadingIndicator = Container(
+  height: 20.0, // Increase the height to take up more vertical space
+
+  child: ImageFiltered(
+    imageFilter: ImageFilter.blur(sigmaX: 5.0, sigmaY: 5.0), // Apply blur effect
+    child: Padding(padding: EdgeInsets.all(10), child: CircularProgressIndicator(),)
+    ),
+);
+
+
+Widget loadingText(Trip trip) => FutureBuilder(
+  future: trip.cityName,
+  builder: (BuildContext context, AsyncSnapshot<String> snapshot) {
+    Widget greeter;
+
+    if (snapshot.hasData) {
+      greeter = AnimatedGradientText(
+        text: 'Generating your trip to ${snapshot.data}...',
+        style: greeterStyle,
+      );
+    } else if (snapshot.hasError) {
+      // the exact error is shown in the central part of the trip overview. No need to show it here
+      greeter = AnimatedGradientText(
+        text: 'Error while loading trip.',
+        style: greeterStyle,
+      );
+    } else {
+      greeter = AnimatedGradientText(
+        text: 'Generating your trip...',
+        style: greeterStyle,
+      );
+    }
+    return greeter;
+  }
+);
+
+class AnimatedGradientText extends StatefulWidget {
+  final String text;
+  final TextStyle style;
+
+  const AnimatedGradientText({
+    Key? key,
+    required this.text,
+    required this.style,
+  }) : super(key: key);
+
+  @override
+  _AnimatedGradientTextState createState() => _AnimatedGradientTextState();
+}
+
+class _AnimatedGradientTextState extends State<AnimatedGradientText> with SingleTickerProviderStateMixin {
+  late AnimationController _controller;
+
+  @override
+  void initState() {
+    super.initState();
+    _controller = AnimationController(
+      duration: const Duration(seconds: 1),
+      vsync: this,
+    )..repeat();
+  }
+
+  @override
+  void dispose() {
+    _controller.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return AnimatedBuilder(
+      animation: _controller,
+      builder: (context, child) {
+        return ShaderMask(
+          shaderCallback: (bounds) {
+            return LinearGradient(
+              colors: [Colors.blue, Colors.red, Colors.blue],
+              stops: [
+                _controller.value - 1.0,
+                _controller.value,
+                _controller.value + 1.0,
+              ],
+              tileMode: TileMode.mirror,
+            ).createShader(bounds);
+          },
+          child: Text(
+            widget.text,
+            style: widget.style,
+          ),
+        );
+      },
+    );
+  }
+}
+
+
+
+
 class _CurrentTripLoadingIndicatorState extends State<CurrentTripLoadingIndicator> {
   @override
-  Widget build(BuildContext context) => Center(
-    child: FutureBuilder(
-      future: widget.trip.cityName,
-      builder: (BuildContext context, AsyncSnapshot<String> snapshot) {
-        Widget greeter;
-        Widget loadingIndicator = const Padding(
-          padding: EdgeInsets.only(top: 10),
-          child: CircularProgressIndicator()
-        );
-
-        if (snapshot.hasData) {
-          greeter = AutoSizeText(
-            maxLines: 1,
-            'Generating your trip to ${snapshot.data}...',
-            style: greeterStyle,
-          );
-        } else if (snapshot.hasError) {
-          // the exact error is shown in the central part of the trip overview. No need to show it here
-          greeter = AutoSizeText(
-            maxLines: 1,
-            'Error while loading trip.',
-            style: greeterStyle,
-            );
-        } else {
-          greeter = AutoSizeText(
-            maxLines: 1,
-            'Generating your trip...',
-            style: greeterStyle,
-            );
-        }
-        return Column(
-          mainAxisAlignment: MainAxisAlignment.center,
-          children: [
-            greeter,
-            loadingIndicator,
-          ],
-        );
-      }
-    )
+  Widget build(BuildContext context) => Stack(
+    fit: StackFit.expand,
+    children: [
+      Center(child: loadingText(widget.trip)),
+      Align(
+        alignment: Alignment.bottomCenter,
+        child: bottomLoadingIndicator,
+      )
+    ],
   );
-}
+
+}

frontend/lib/modules/current_trip_panel.dart

@@ -36,7 +36,7 @@ class _CurrentTripPanelState extends State<CurrentTripPanel> {
               child: SizedBox(
                 // reuse the exact same height as the panel has when collapsed
                 // this way the greeter will be centered when the panel is collapsed
-                height: MediaQuery.of(context).size.height * TRIP_PANEL_MIN_HEIGHT - 20,
+                height: MediaQuery.of(context).size.height * TRIP_PANEL_MIN_HEIGHT,
                 child: CurrentTripErrorMessage(trip: widget.trip)
               ),
             );
@@ -46,19 +46,20 @@ class _CurrentTripPanelState extends State<CurrentTripPanel> {
               child: SizedBox(
                 // reuse the exact same height as the panel has when collapsed
                 // this way the greeter will be centered when the panel is collapsed
-                height: MediaQuery.of(context).size.height * TRIP_PANEL_MIN_HEIGHT - 20,
+                height: MediaQuery.of(context).size.height * TRIP_PANEL_MIN_HEIGHT,
                 child: CurrentTripLoadingIndicator(trip: widget.trip),
               ),
             );
         } else {
           return ListView(
             controller: widget.controller,
-            padding: const EdgeInsets.only(bottom: 30),
+            padding: const EdgeInsets.only(top: 10, left: 10, right: 10, bottom: 30),
             children: [
               SizedBox(
                 // reuse the exact same height as the panel has when collapsed
                 // this way the greeter will be centered when the panel is collapsed
-                height: MediaQuery.of(context).size.height * TRIP_PANEL_MIN_HEIGHT - 20,
+                // note that we need to account for the padding above
+                height: MediaQuery.of(context).size.height * TRIP_PANEL_MIN_HEIGHT - 10,
                 child: CurrentTripGreeter(trip: widget.trip),
               ),
 
@@ -72,7 +73,7 @@ class _CurrentTripPanelState extends State<CurrentTripPanel> {
 
               const Padding(padding: EdgeInsets.only(top: 10)),
 
-              Center(child: saveButton(widget.trip)),
+              Center(child: saveButton(trip: widget.trip)),
             ],
           );
         }

frontend/lib/modules/current_trip_save_button.dart

@@ -3,39 +3,53 @@ import 'package:anyway/main.dart';
 import 'package:anyway/structs/trip.dart';
 import 'package:auto_size_text/auto_size_text.dart';
 import 'package:flutter/material.dart';
-import 'package:shared_preferences/shared_preferences.dart';
 
-Widget saveButton(Trip trip) => ElevatedButton(
-  onPressed: () async {
-    SharedPreferences prefs = await SharedPreferences.getInstance();
-    trip.toPrefs(prefs);
-    rootScaffoldMessengerKey.currentState!.showSnackBar(
-      SnackBar(
-        content: Text('Trip saved'),
-        duration: Duration(seconds: 2),
-        dismissDirection: DismissDirection.horizontal
+
+class saveButton extends StatefulWidget {
+  Trip trip;
+  saveButton({super.key, required this.trip});
+
+  @override
+  State<saveButton> createState() => _saveButtonState();
+}
+
+class _saveButtonState extends State<saveButton> {
+  @override
+  Widget build(BuildContext context) {
+    return ElevatedButton(
+      onPressed: () async {
+        savedTrips.addTrip(widget.trip);
+        // SharedPreferences prefs = await SharedPreferences.getInstance();
+        // setState(() => widget.trip.toPrefs(prefs));
+        rootScaffoldMessengerKey.currentState!.showSnackBar(
+          SnackBar(
+            content: Text('Trip saved'),
+            duration: Duration(seconds: 2),
+            dismissDirection: DismissDirection.horizontal
+          )
+        );
+      },
+      child: SizedBox(
+        width: 100,
+        child: Row(
+          mainAxisAlignment: MainAxisAlignment.center,
+          children: [
+            Icon(
+              Icons.save,
+            ),
+            Expanded(
+              child: Padding(
+                padding: EdgeInsets.only(left: 10, top: 5, bottom: 5, right: 5),
+                child: AutoSizeText(
+                  'Save trip',
+                  maxLines: 2,
+                ),
+              ),
+            ),
+          ],
+        ),
       )
     );
-  },
-  child: SizedBox(
-    width: 100,
-    child: Row(
-      mainAxisAlignment: MainAxisAlignment.center,
-      children: [
-        Icon(
-          Icons.save,
-        ),
-        Expanded(
-          child: Padding(
-            padding: EdgeInsets.only(left: 10, top: 5, bottom: 5, right: 5),
-            child: AutoSizeText(
-              'Save trip',
-              maxLines: 2,
-            ),
-          ),
-        ),
-      ],
-    ),
-  )
-);
+  }
+}
 

frontend/lib/modules/help_dialog.dart

@@ -0,0 +1,25 @@
+
+import 'package:flutter/material.dart';
+
+Future<void> helpDialog(BuildContext context, String title, String content) {
+  return showDialog<void>(
+    context: context,
+    builder: (BuildContext context) {
+      return AlertDialog(
+        title: Text(title),
+        content: Text(content),
+        actions: <Widget>[
+          TextButton(
+            style: TextButton.styleFrom(
+              textStyle: Theme.of(context).textTheme.labelLarge,
+            ),
+            child: const Text('Got it!'),
+            onPressed: () {
+              Navigator.of(context).pop();
+            },
+          ),
+        ],
+      );
+    },
+  );
+}

frontend/lib/modules/landmark_card.dart

@@ -1,3 +1,5 @@
+import 'package:anyway/main.dart';
+import 'package:anyway/structs/trip.dart';
 import 'package:flutter/material.dart';
 import 'package:cached_network_image/cached_network_image.dart';
 import 'package:url_launcher/url_launcher.dart';
@@ -6,8 +8,12 @@ import 'package:anyway/structs/landmark.dart';
 
 class LandmarkCard extends StatefulWidget {
   final Landmark landmark;
+  final Trip parentTrip;
   
-  LandmarkCard(this.landmark);
+  LandmarkCard(
+    this.landmark,
+    this.parentTrip,
+    );
   
   @override
   _LandmarkCardState createState() => _LandmarkCardState();
@@ -17,110 +23,149 @@ class LandmarkCard extends StatefulWidget {
 class _LandmarkCardState extends State<LandmarkCard> {
   @override
   Widget build(BuildContext context) {
-    ThemeData theme = Theme.of(context);
+    if (widget.landmark.type == typeStart || widget.landmark.type == typeFinish) {
+      return TextButton.icon(
+        onPressed: () {},
+        icon: widget.landmark.type.icon,
+        label: Text(widget.landmark.name),
+      );
+
+    }
+    // else:
     return Container(
-      height: 160,
       child: Card(
         shape: RoundedRectangleBorder(
           borderRadius: BorderRadius.circular(15.0),
         ),
         elevation: 5,
         clipBehavior: Clip.antiAliasWithSaveLayer,
-        child: Row(
-          crossAxisAlignment: CrossAxisAlignment.start,
-          children: [
-            Container( // the image on the left
-              // inherit the height of the parent container
-              height: double.infinity,
-              // force a fixed width
-              width: 160,
-              child: CachedNetworkImage(
-                imageUrl: widget.landmark.imageURL ?? '',
-                placeholder: (context, url) => Center(child: CircularProgressIndicator()),
-                errorWidget: (context, error, stackTrace) => Icon(Icons.question_mark_outlined),
-                // TODO: make this a switch statement to load a placeholder if null
-                // cover the whole container meaning the image will be cropped
-                fit: BoxFit.cover,
-              ),
-            ),
-            Flexible(
-              child: Padding(
-                padding: EdgeInsets.all(10),
-                child: Column(
-                  children: [
-                    Row(
-                      children: [
-                        Flexible(
-                          child: Text(
-                            widget.landmark.name,
-                            style: const TextStyle(
-                              fontSize: 18,
-                              fontWeight: FontWeight.bold,
-                            ),
-                            maxLines: 2,
-                          ),
-                        )
-                      ],
-                    ),
-                    if (widget.landmark.nameEN != null)
-                      Row(
-                        children: [
-                          Flexible(
-                            child: Text(
-                              widget.landmark.nameEN!,
-                              style: const TextStyle(
-                                fontSize: 16,
-                              ),
-                              maxLines: 1,
-                            ),
-                          )
-                        ],
-                      ),
-                    SingleChildScrollView(
-                      // allows the buttons to be scrolled
-                      scrollDirection: Axis.horizontal,
-                      child: Wrap(
-                        spacing: 10,
-                        // show the type, the website, and the wikipedia link as buttons/labels in a row
-                        children: [
-                          TextButton.icon(
-                            onPressed: () {},
-                            icon: widget.landmark.type.icon,
-                            label: Text(widget.landmark.type.name),
-                          ),
-                          if (widget.landmark.duration != null && widget.landmark.duration!.inMinutes > 0)
-                            TextButton.icon(
-                              onPressed: () {},
-                              icon: Icon(Icons.hourglass_bottom),
-                              label: Text('${widget.landmark.duration!.inMinutes} minutes'),
-                            ),
-                          if (widget.landmark.websiteURL != null)
-                            TextButton.icon(
-                              onPressed: () async {
-                                // open a browser with the website link
-                                await launchUrl(Uri.parse(widget.landmark.websiteURL!));
-                              },
-                              icon: Icon(Icons.link),
-                              label: Text('Website'),
-                            ),
-                          if (widget.landmark.wikipediaURL != null)
-                            TextButton.icon(
-                              onPressed: () async {
-                                // open a browser with the wikipedia link
-                                await launchUrl(Uri.parse(widget.landmark.wikipediaURL!));
-                              },
-                              icon: Icon(Icons.book),
-                            label: Text('Wikipedia'),
-                          ),
-                        ],
-                      ),
-                    ),
-                  ],
-                ),
-              ),
-            ),
-          ],
+        // if the image is available, display it on the left side of the card, otherwise only display the text
+        child: widget.landmark.imageURL != null ? splitLayout() : textLayout(),
+      ),
+    );
+  }
+
+  Widget splitLayout() {
+    // If an image is available, display it on the left side of the card
+    return Row(
+      crossAxisAlignment: CrossAxisAlignment.start,
+      children: [
+        Container(
+          // the image on the left
+          width: 160,
+          height: 160,
+
+          child: CachedNetworkImage(
+            imageUrl: widget.landmark.imageURL ?? '',
+            placeholder: (context, url) => Center(child: CircularProgressIndicator()),
+            errorWidget: (context, error, stackTrace) => Icon(Icons.question_mark_outlined),
+            fit: BoxFit.cover,
+          ),
         ),
+        Flexible(
+          child: textLayout(),
+        ),
+      ],
+    );
+  }
+
+  Widget textLayout() {
+    return Padding(
+      padding: EdgeInsets.all(10),
+      child: Column(
+        children: [
+          Row(
+            children: [
+              Flexible(
+                child: Text(
+                  widget.landmark.name,
+                  style: const TextStyle(
+                    fontSize: 18,
+                    fontWeight: FontWeight.bold,
+                  ),
+                  maxLines: 2,
+                ),
+              )
+            ],
+          ),
+          if (widget.landmark.nameEN != null)
+            Row(
+              children: [
+                Flexible(
+                  child: Text(
+                    widget.landmark.nameEN!,
+                    style: const TextStyle(
+                      fontSize: 16,
+                    ),
+                    maxLines: 1,
+                  ),
+                )
+              ],
+            ),
+          Padding(padding: EdgeInsets.only(top: 10)),
+          Align(
+            alignment: Alignment.centerLeft,
+            child: SingleChildScrollView(
+              // allows the buttons to be scrolled
+              scrollDirection: Axis.horizontal,
+              child: Wrap(
+                spacing: 10,
+                // show the type, the website, and the wikipedia link as buttons/labels in a row
+                children: [
+                  TextButton.icon(
+                    onPressed: () {},
+                    icon: widget.landmark.type.icon,
+                    label: Text(widget.landmark.type.name),
+                  ),
+                  if (widget.landmark.duration != null && widget.landmark.duration!.inMinutes > 0)
+                    TextButton.icon(
+                      onPressed: () {},
+                      icon: Icon(Icons.hourglass_bottom),
+                      label: Text('${widget.landmark.duration!.inMinutes} minutes'),
+                    ),
+                  if (widget.landmark.websiteURL != null)
+                    TextButton.icon(
+                      onPressed: () async {
+                        // open a browser with the website link
+                        await launchUrl(Uri.parse(widget.landmark.websiteURL!));
+                      },
+                      icon: Icon(Icons.link),
+                      label: Text('Website'),
+                    ),
+                  PopupMenuButton(
+                    icon: Icon(Icons.settings),
+                    style: TextButtonTheme.of(context).style,
+                    itemBuilder: (context) => [
+                      PopupMenuItem(
+                        child: ListTile(
+                          leading: Icon(Icons.delete),
+                          title: Text('Delete'),
+                          onTap: () async {
+                            widget.parentTrip.removeLandmark(widget.landmark);
+                            rootScaffoldMessengerKey.currentState!.showSnackBar(
+                              SnackBar(content: Text("We won't show ${widget.landmark.name} again"))
+                            );
+                          },
+                        ),
+                      ),
+                      PopupMenuItem(
+                        child: ListTile(
+                          leading: Icon(Icons.star),
+                          title: Text('Favorite'),
+                          onTap: () async {
+                            // delete the landmark
+                            // await deleteLandmark(widget.landmark);
+                          },
+                        ),
+                      ),
+                    ],
+                  )
+                    
+                ],
+              ),
+            ),
+          ),
+        ],
       ),
     );
   }

frontend/lib/modules/new_trip_button.dart

@@ -1,5 +1,5 @@
-import 'package:anyway/layout.dart';
 import 'package:anyway/main.dart';
+import 'package:anyway/pages/current_trip.dart';
 import 'package:anyway/structs/preferences.dart';
 import 'package:anyway/structs/trip.dart';
 import 'package:anyway/utils/fetch_trip.dart';
@@ -57,7 +57,7 @@ class _NewTripButtonState extends State<NewTripButton> {
       fetchTrip(trip, widget.preferences);
       Navigator.of(context).push(
         MaterialPageRoute(
-          builder: (context) => BasePage(mainScreen: "map", trip: trip)
+          builder: (context) => TripPage(trip: trip)
         )
       );
     }

frontend/lib/modules/new_trip_location_search.dart

@@ -9,6 +9,15 @@ import 'package:flutter/material.dart';
 import 'package:geolocator/geolocator.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 
+const Map<String, List> debugLocations = {
+  'paris': [48.8575, 2.3514],
+  'london': [51.5074, -0.1278],
+  'new york': [40.7128, -74.0060],
+  'tokyo': [35.6895, 139.6917],
+};
+
+
+
 class NewTripLocationSearch extends StatefulWidget {
   Future<SharedPreferences> prefs = SharedPreferences.getInstance();
   Trip trip;
@@ -27,26 +36,35 @@ class _NewTripLocationSearchState extends State<NewTripLocationSearch> {
 
   setTripLocation (String query) async {
     List<Location> locations = [];
+    Location startLocation;
     log('Searching for: $query');
-    
-    try{
-      locations = await locationFromAddress(query);
-    } catch (e) {
-      log('No results found for: $query : $e');
+    if (GeocodingPlatform.instance != null) {
+      locations.addAll(await locationFromAddress(query));
     }
 
     if (locations.isNotEmpty) {
-      Location location = locations.first;
-      widget.trip.landmarks.clear();
-      widget.trip.addLandmark(
-        Landmark(
-          uuid: 'pending',
-          name: query,
-          location: [location.latitude, location.longitude],
-          type: typeStart
-        )
+      startLocation = locations.first;
+    } else {
+      log('No results found for: $query. Is geocoding available?');
+      log('Setting Fallback location');
+      List coordinates = debugLocations[query.toLowerCase()] ?? [48.8575, 2.3514];
+      startLocation = Location(
+        latitude: coordinates[0],
+        longitude: coordinates[1],
+        timestamp: DateTime.now(),
       );
     }
+
+    widget.trip.landmarks.clear();
+    widget.trip.addLandmark(
+      Landmark(
+        uuid: 'pending',
+        name: query,
+        location: [startLocation.latitude, startLocation.longitude],
+        type: typeStart
+      )
+    );
+
   }
 
   late Widget locationSearchBar = SearchBar(

frontend/lib/modules/new_trip_map.dart

@@ -26,7 +26,7 @@ class _NewTripMapState extends State<NewTripMap> {
     target: LatLng(48.8566, 2.3522),
     zoom: 11.0,
   );
-  late GoogleMapController _mapController;
+  GoogleMapController? _mapController;
   final Set<Marker> _markers = <Marker>{};
 
   _onLongPress(LatLng location) {
@@ -56,11 +56,15 @@ class _NewTripMapState extends State<NewTripMap> {
           ),
         )
       );
-      _mapController.moveCamera(
-        CameraUpdate.newLatLng(
-          LatLng(landmark.location[0], landmark.location[1])
-        )
-      );
+      // check if the controller is ready
+
+      if (_mapController != null) {
+        _mapController!.animateCamera(
+          CameraUpdate.newLatLng(
+            LatLng(landmark.location[0], landmark.location[1])
+          )
+        );
+      }
       setState(() {});
     }
   }

frontend/lib/modules/onboarding_card.dart

@@ -2,13 +2,11 @@ import 'package:flutter/material.dart';
 import 'package:flutter_svg/flutter_svg.dart';
 
 class OnboardingCard extends StatelessWidget {
-  int index;
-  String title;
-  String description;
-  String imagePath;
+  final String title;
+  final String description;
+  final String imagePath;
 
-  OnboardingCard({
-    required this.index,
+  const OnboardingCard({
     required this.title,
     required this.description,
     required this.imagePath,
@@ -16,41 +14,35 @@ class OnboardingCard extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    Color baseColor = Theme.of(context).colorScheme.secondary;
-    // have a different color for each card, incrementing the hue
-    Color currentColor = baseColor.withAlpha(baseColor.alpha - index * 30);
-    return Container(
-      color: currentColor,
-      alignment: Alignment.center,
-      child: Padding(
-        padding: EdgeInsets.all(20),
-        child: Column(
-          mainAxisAlignment: MainAxisAlignment.center,
-          children: [
-            Text(
-              title,
-              style: TextStyle(
-                fontSize: 24,
-                fontWeight: FontWeight.bold,
-                color: Colors.white,
-              ),
+    
+    return Padding(
+      padding: EdgeInsets.all(20),
+      child: Column(
+        mainAxisAlignment: MainAxisAlignment.center,
+        children: [
+          Text(
+            title,
+            style: TextStyle(
+              fontSize: 24,
+              fontWeight: FontWeight.bold,
+              color: Colors.white,
             ),
-            Padding(padding: EdgeInsets.only(top: 20)),
-            SvgPicture.asset(
-              imagePath,
-              height: 200,
-            ),
-            Padding(padding: EdgeInsets.only(top: 20)),
-            Text(
-              description,
-              style: TextStyle(
-                fontSize: 16,
-              ),
+          ),
+          Padding(padding: EdgeInsets.only(top: 20)),
+          SvgPicture.asset(
+            imagePath,
+            height: 200,
+          ),
+          Padding(padding: EdgeInsets.only(top: 20)),
+          Text(
+            description,
+            style: TextStyle(
+              fontSize: 16,
             ),
+          ),
 
-          ]
-        ),
-      )
+        ]
+      ),
     );
   }
 }

frontend/lib/modules/trips_saved_list.dart

@@ -1,11 +1,12 @@
+import 'package:anyway/pages/current_trip.dart';
+import 'package:anyway/utils/load_trips.dart';
 import 'package:flutter/material.dart';
 
-import 'package:anyway/layout.dart';
 import 'package:anyway/structs/trip.dart';
 
 
 class TripsOverview extends StatefulWidget {
-  final Future<List<Trip>> trips;
+  final SavedTrips trips;
   const TripsOverview({
     super.key,
     required this.trips,
@@ -16,50 +17,34 @@ class TripsOverview extends StatefulWidget {
 }
 
 class _TripsOverviewState extends State<TripsOverview> {
-
-  Widget listBuild (BuildContext context, AsyncSnapshot<List<Trip>> snapshot) {
+  Widget listBuild (BuildContext context, SavedTrips trips) {
     List<Widget> children;
-    if (snapshot.hasData) {
-      children = List<Widget>.generate(snapshot.data!.length, (index) {
-        Trip trip = snapshot.data![index];
-        return ListTile(
-          title: FutureBuilder(
-            future: trip.cityName,
-            builder: (BuildContext context, AsyncSnapshot<String> snapshot) {
-              if (snapshot.hasData) {
-                return Text("Trip to ${snapshot.data}");
-              } else if (snapshot.hasError) {
-                return Text("Error: ${snapshot.error}");
-              } else {
-                return const Text("Trip to ...");
-              }
-            },
-          ),
-          leading: Icon(Icons.pin_drop),
-          onTap: () {
-            Navigator.of(context).push(
-              MaterialPageRoute(
-                builder: (context) => BasePage(mainScreen: "map", trip: trip)
-              )
-            );
+    List<Trip> items = trips.trips;
+    children = List<Widget>.generate(items.length, (index) {
+      Trip trip = items[index];
+      return ListTile(
+        title: FutureBuilder(
+          future: trip.cityName,
+          builder: (BuildContext context, AsyncSnapshot<String> snapshot) {
+            if (snapshot.hasData) {
+              return Text("Trip to ${snapshot.data}");
+            } else if (snapshot.hasError) {
+              return Text("Error: ${snapshot.error}");
+            } else {
+              return const Text("Trip to ...");
+            }
           },
-        );
-      });
-    } else if (snapshot.hasError) {
-      children = [
-        const Icon(
-          Icons.error_outline,
-          color: Colors.red,
-          size: 60,
         ),
-        Padding(
-          padding: const EdgeInsets.only(top: 16),
-          child: Text('Error: ${snapshot.error}'),
-        ),
-      ];
-    } else {
-      children = [Center(child: CircularProgressIndicator())];
-    }
+        leading: Icon(Icons.pin_drop),
+        onTap: () {
+          Navigator.of(context).push(
+            MaterialPageRoute(
+              builder: (context) => TripPage(trip: trip)
+            )
+          );
+        },
+      );
+    });
 
     return ListView(
       children: children,
@@ -69,9 +54,11 @@ class _TripsOverviewState extends State<TripsOverview> {
 
   @override
   Widget build(BuildContext context) {
-    return FutureBuilder(
-      future: widget.trips,
-      builder: listBuild,
+    return ListenableBuilder(
+      listenable: widget.trips,
+      builder: (BuildContext context, Widget? child) {
+        return listBuild(context, widget.trips);
+      }
     );
   }
-}
+}

frontend/lib/pages/base_page.dart

@@ -1,3 +1,6 @@
+import 'package:anyway/main.dart';
+import 'package:anyway/modules/help_dialog.dart';
+import 'package:anyway/pages/current_trip.dart';
 import 'package:anyway/pages/settings.dart';
 import 'package:flutter/material.dart';
 
@@ -8,22 +11,24 @@ import 'package:anyway/modules/trips_saved_list.dart';
 import 'package:anyway/utils/load_trips.dart';
 
 import 'package:anyway/pages/new_trip_location.dart';
-import 'package:anyway/pages/current_trip.dart';
 import 'package:anyway/pages/onboarding.dart';
 
 
 
 
-// BasePage is the scaffold that holds all other pages
-// A side drawer is used to switch between pages
+// BasePage is the scaffold that holds a child page and a side drawer
+// The side drawer is the main way to switch between pages
+
 class BasePage extends StatefulWidget {
-  final String mainScreen;
-  final Trip? trip;
+  final Widget mainScreen;
+  final Widget title;
+  final List<String> helpTexts;
 
   const BasePage({
     super.key,
     required this.mainScreen,
-    this.trip,
+    this.title = const Text(APP_NAME),
+    this.helpTexts = const [],
   });
 
   @override
@@ -34,53 +39,25 @@ class _BasePageState extends State<BasePage> {
 
   @override
   Widget build(BuildContext context) {
-    Widget currentView = const Text("loading...");
-    Future<List<Trip>> trips = loadTrips();
-    
-    
-    if (widget.mainScreen == "map") {
-      if (widget.trip != null) {
-        currentView = TripPage(trip: widget.trip!);
-      } else {
-        currentView = FutureBuilder(
-          future: trips,
-          builder: (context, snapshot) {
-            if (snapshot.hasData) {
-              List<Trip> availableTrips = snapshot.data!;
-              if (availableTrips.isNotEmpty) {
-                return TripPage(trip: availableTrips[0]);
-              } else {
-                return Scaffold(
-                  body: Center(
-                    child: Text("Wow, so empty!"),
-                  ),
-                  floatingActionButton: FloatingActionButton.extended(
-                    onPressed: () {
-                      Navigator.of(context).push(
-                        MaterialPageRoute(
-                          builder: (context) => const NewTripPage()
-                        )
-                      );
-                    },
-                    label: Text("Plan a trip"),
-                  ),
-                );
-              }
-            } else {
-              return const Text("loading...");
-            }
-          },
-        );
-      }
-    } else if (widget.mainScreen == "tutorial") {
-      currentView = OnboardingPage();
-    } else if (widget.mainScreen == "settings") {
-      currentView = SettingsPage();
-    }
+    savedTrips.loadTrips();
+
 
     return Scaffold(
-      appBar: AppBar(title: Text(APP_NAME)),
-      body: Center(child: currentView),
+      appBar: AppBar(
+        title: widget.title,
+        actions: [
+          IconButton(
+            icon: const Icon(Icons.help),
+            tooltip: 'Help',
+            onPressed: () {
+              if (widget.helpTexts.isNotEmpty) {
+                helpDialog(context, widget.helpTexts[0], widget.helpTexts[1]);
+              }
+            }
+          ),
+        ],
+      ),
+      body: Center(child: widget.mainScreen),
       drawer: Drawer(
         child: Column(
           children: [
@@ -104,7 +81,8 @@ class _BasePageState extends State<BasePage> {
             ListTile(
               title: const Text('Your Trips'),
               leading: const Icon(Icons.map),
-              selected: widget.mainScreen == "map",
+              // TODO: this is not working!
+              selected: widget.mainScreen is TripPage,
               onTap: () {},
               trailing: ElevatedButton(
                 onPressed: () {
@@ -122,11 +100,11 @@ class _BasePageState extends State<BasePage> {
             // through the options in the drawer if there isn't enough vertical
             // space to fit everything.
             Expanded(
-              child: TripsOverview(trips: trips),
+              child: TripsOverview(trips: savedTrips),
             ),
             ElevatedButton(
               onPressed: () async {
-                removeAllTripsFromPrefs();
+                savedTrips.clearTrips();
               },
               child: const Text('Clear trips'),
             ),
@@ -134,11 +112,12 @@ class _BasePageState extends State<BasePage> {
             ListTile(
               title: const Text('How to use'),
               leading: Icon(Icons.help),
-              selected: widget.mainScreen == "tutorial",
+              // TODO: this is not working!
+              selected: widget.mainScreen is OnboardingPage,
               onTap: () {
                 Navigator.of(context).push(
                   MaterialPageRoute(
-                    builder: (context) => BasePage(mainScreen: "tutorial")
+                    builder: (context) => OnboardingPage()
                   )
                 );
               },
@@ -148,11 +127,12 @@ class _BasePageState extends State<BasePage> {
             ListTile(
               title: const Text('Settings'),
               leading: const Icon(Icons.settings),
-              selected: widget.mainScreen == "settings",
+              // TODO: this is not working!
+              selected: widget.mainScreen is SettingsPage,
               onTap: () {
                 Navigator.of(context).push(
                   MaterialPageRoute(
-                    builder: (context) => BasePage(mainScreen: "settings")
+                    builder: (context) => SettingsPage()
                   )
                 );
               },

frontend/lib/pages/current_trip.dart

@@ -1,4 +1,5 @@
 import 'package:anyway/constants.dart';
+import 'package:anyway/pages/base_page.dart';
 import 'package:flutter/material.dart';
 import 'package:sliding_up_panel/sliding_up_panel.dart';
 
@@ -31,7 +32,8 @@ class _TripPageState extends State<TripPage> {
 
   @override
   Widget build(BuildContext context) {
-    return SlidingUpPanel(
+    return BasePage(
+      mainScreen: SlidingUpPanel(
         // use panelBuilder instead of panel so that we can reuse the scrollcontroller for the listview
         panelBuilder: (scrollcontroller) => CurrentTripPanel(controller: scrollcontroller, trip: widget.trip),
         // using collapsed and panelBuilder seems to show both at the same time, so we include the greeter in the panelBuilder
@@ -41,7 +43,7 @@ class _TripPageState extends State<TripPage> {
         maxHeight: MediaQuery.of(context).size.height * TRIP_PANEL_MAX_HEIGHT,
         // padding in this context is annoying: it offsets the notion of vertical alignment.
         // children that want to be centered vertically need to have their size adjusted by 2x the padding
-        padding: const EdgeInsets.all(10.0),
+        // padding: const EdgeInsets.all(10.0),
         // Panel snapping should not be disabled because it significantly improves the user experience
         // panelSnapping: false
         borderRadius: const BorderRadius.only(topLeft: Radius.circular(25), topRight: Radius.circular(25)),
@@ -52,6 +54,13 @@ class _TripPageState extends State<TripPage> {
             color: Colors.black,
           )
         ],
+      ),
+      title: FutureBuilder(
+        future: widget.trip.cityName,
+        builder: (context, snapshot) => Text(
+          'Your trip to ${snapshot.hasData ? snapshot.data! : "..."}',
+        )
+      ),
     );
   }
 }

frontend/lib/pages/new_trip_location.dart

@@ -1,5 +1,5 @@
-import 'package:anyway/modules/new_trip_button.dart';
 import 'package:anyway/modules/new_trip_options_button.dart';
+import 'package:anyway/pages/base_page.dart';
 import 'package:flutter/material.dart';
 
 import "package:anyway/structs/trip.dart";
@@ -19,23 +19,28 @@ class _NewTripPageState extends State<NewTripPage> {
   final TextEditingController lonController = TextEditingController();
   Trip trip = Trip();
 
+
   @override
   Widget build(BuildContext context) {
     // floating search bar and map as a background
-    return Scaffold(
-      appBar: AppBar(
-        title: const Text('New Trip'),
+    return BasePage(
+      mainScreen: Scaffold(
+        body: Stack(
+          children: [
+            NewTripMap(trip),
+            Padding(
+              padding: EdgeInsets.all(15),
+              child: NewTripLocationSearch(trip),
+            ),
+          ],
+        ),
+        floatingActionButton: NewTripOptionsButton(trip: trip),
       ),
-      body: Stack(
-        children: [
-          NewTripMap(trip),
-          Padding(
-            padding: EdgeInsets.all(15),
-            child: NewTripLocationSearch(trip),
-          ),
-        ],
-      ),
-      floatingActionButton: NewTripOptionsButton(trip: trip),
+      title: Text("New Trip"),
+      helpTexts: [
+        "Setting the start location",
+        "To set the starting point, type a city name in the search bar. You can also navigate the map like you're used to and long press anywhere to set a starting point."
+      ],
     );
   }
 }

frontend/lib/pages/new_trip_preferences.dart

@@ -1,4 +1,5 @@
 import 'package:anyway/modules/new_trip_button.dart';
+import 'package:anyway/pages/base_page.dart';
 import 'package:anyway/structs/preferences.dart';
 import 'package:anyway/structs/trip.dart';
 import 'package:flutter/cupertino.dart';
@@ -19,41 +20,54 @@ class _NewTripPreferencesPageState extends State<NewTripPreferencesPage> {
 
   @override
   Widget build(BuildContext context) {
-    return Scaffold(
-      body: ListView(
-        children: [
-          // Center(
-          //   child: CircleAvatar(
-          //     radius: 100,
-          //     child: Icon(Icons.person, size: 100),
-          //   )
-          // ),
-          Padding(padding: EdgeInsets.only(top: 30)),
-          Center(
-            child: FutureBuilder(
-              future: widget.trip.cityName,
-              builder: (context, snapshot) => Text(
-                'Your trip to ${snapshot.hasData ? snapshot.data! : "..."}',
-                style: TextStyle(fontSize: 24, fontWeight: FontWeight.bold)
-              )
-            )
-          ),
+    return BasePage(
+      mainScreen: Scaffold(
+        body: ListView(
+          children: [
+            // Center(
+            //   child: CircleAvatar(
+            //     radius: 100,
+            //     child: Icon(Icons.person, size: 100),
+            //   )
+            // ),
+            // Padding(padding: EdgeInsets.only(top: 30)),
+            // Center(
+            //   child: FutureBuilder(
+            //     future: widget.trip.cityName,
+            //     builder: (context, snapshot) => Text(
+            //       'Your trip to ${snapshot.hasData ? snapshot.data! : "..."}',
+            //       style: TextStyle(fontSize: 24, fontWeight: FontWeight.bold)
+            //     )
+            //   )
+            // ),
 
-          Center(
-            child: Padding(
-            padding: EdgeInsets.only(left: 10, right: 10, top: 20, bottom: 0),
-              child: Text('Tell us about your ideal trip.', style: TextStyle(fontSize: 18))
+            Center(
+              child: Padding(
+              padding: EdgeInsets.only(left: 10, right: 10, top: 20, bottom: 0),
+                child: Text('Tell us about your ideal trip.', style: TextStyle(fontSize: 18))
+              ),
             ),
-          ),
 
-          Divider(indent: 25, endIndent: 25, height: 50),
+            Divider(indent: 25, endIndent: 25, height: 50),
 
-          durationPicker(preferences.maxTime),
+            durationPicker(preferences.maxTime),
 
-          preferenceSliders([preferences.sightseeing, preferences.shopping, preferences.nature]),
-        ]
+            preferenceSliders([preferences.sightseeing, preferences.shopping, preferences.nature]),
+          ]
+        ),
+        floatingActionButton: NewTripButton(trip: widget.trip, preferences: preferences),
       ),
-      floatingActionButton: NewTripButton(trip: widget.trip, preferences: preferences),
+      
+      title: FutureBuilder(
+        future: widget.trip.cityName,
+        builder: (context, snapshot) => Text(
+          'Your trip to ${snapshot.hasData ? snapshot.data! : "..."}',
+        )
+      ),
+      helpTexts: [
+        'Trip preferences',
+        'Set your preferences for this trip. These will be used to generate a custom itinerary.'
+      ],
     );
   }
 

frontend/lib/pages/onboarding.dart

@@ -1,7 +1,33 @@
+import 'dart:ui';
+
+import 'package:anyway/constants.dart';
 import 'package:anyway/modules/onboarding_card.dart';
 import 'package:anyway/pages/new_trip_location.dart';
 import 'package:flutter/material.dart';
 
+const List<Widget> onboardingCards = [
+  OnboardingCard(
+    title: "Welcome to anyway!",
+    description: "Anyway helps you plan a city trip that suits your wishes.",
+    imagePath: "assets/city.svg"
+  ),
+  OnboardingCard(
+    title: "Find your way",
+    description: "Bored by churches? No problem! Hate shopping? No worries! Instead of suggesting the generic trips that bore you, anyway will try to give you recommendations that really suit you.",
+    imagePath: "assets/plan.svg"
+  ),
+  OnboardingCard(
+    title: "Change your mind",
+    description: "Feet get sore, the weather changes. Anyway understands that! Move or remove destinations, visit hidden gems along your journey, do your own thing. Anyway adapts to your spontaneous decisions.",
+    imagePath: "assets/cat.svg"
+  ),
+  OnboardingCard(
+    title: "Feeling lost?",
+    description: "Whenever you are confused or need help with the app, look out for the question mark in the top right corner. Help is just a tap away!",
+    imagePath: "assets/confused.svg"
+  ),
+];
+
 class OnboardingPage extends StatefulWidget {
   const OnboardingPage({super.key});
 
@@ -10,37 +36,83 @@ class OnboardingPage extends StatefulWidget {
 }
 
 class _OnboardingPageState extends State<OnboardingPage> {
+  final PageController _controller = PageController();
+
   @override
   Widget build(BuildContext context) {
-    final PageController _controller = PageController();
     return Scaffold(
       body: Stack(
         children: [
+          AnimatedBuilder(
+            animation: _controller,
+            builder: (context, child) {
+              return Stack(
+                children: [
+                  Container(
+                    decoration: BoxDecoration(
+                      gradient: LinearGradient(
+                        begin: Alignment.topLeft,
+                        end: Alignment.bottomRight,
+                        colors: APP_GRADIENT.colors,
+                        stops: [
+                          (_controller.hasClients ? _controller.page ?? _controller.initialPage : _controller.initialPage) / onboardingCards.length,
+                          (_controller.hasClients ? _controller.page ?? _controller.initialPage + 1 : _controller.initialPage + 1) / onboardingCards.length,
+                        ],
+                      ),
+                    ),
+                  ),
+                  BackdropFilter(
+                    filter: ImageFilter.blur(sigmaX: 100, sigmaY: 100),
+                    child: Container(
+                      color: Colors.black.withOpacity(0),
+                    ),
+                  ),
+                ],
+              );
+            },
+          ),
           PageView(
-            // horizontally scrollable list of pages
             controller: _controller,
-            
-            children: [
-              OnboardingCard(index: 1, title: "Welcome to anyway!", description: "Anyway helps you plan a city trip that suits your wishes.", imagePath: "assets/city.svg"),
-              OnboardingCard(index: 2, title: "Find your way", description: "Bored by churches? No problem! Hate shopping? No worries! More than showing you the typical 'must-sees' of a city, anyway will try to give you recommendations that really suit you.", imagePath: "assets/plan.svg"),
-              OnboardingCard(index: 3, title: "Change your mind", description: "Life happens when you're busy making plans. Anyway understands that! Move or remove destinations, visit hidden gems along your journey, do your own thing. Anyway adapts to your spontaneous decisions.", imagePath: "assets/cat.svg"),
-            ],
+            children: List.generate(
+              onboardingCards.length,
+              (index) {
+                return Container(
+                  alignment: Alignment.center,
+                  child: onboardingCards[index],
+                );
+              }
+            ),
           ),
         ],
       ),
-      floatingActionButton: FloatingActionButton(
-         onPressed: () {
-            if (_controller.page == 2) {
-              Navigator.of(context).push(
-                MaterialPageRoute(
-                  builder: (context) => const NewTripPage()
-                )
+      floatingActionButton: FloatingActionButton.extended(
+        onPressed: () {
+          if (_controller.page == onboardingCards.length - 1) {
+            Navigator.of(context).push(
+              MaterialPageRoute(
+                builder: (context) => const NewTripPage()
+              )
+            );
+          } else {
+            _controller.nextPage(duration: Duration(milliseconds: 500), curve: Curves.ease);
+          }
+        },
+        label: AnimatedBuilder(
+          animation: _controller,
+          builder: (context, child) {
+            if ((_controller.page ?? _controller.initialPage) == onboardingCards.length - 1) {
+              return Row(
+                children: [
+                  const Text("Start planning!"),
+                  Padding(padding: const EdgeInsets.only(right: 8.0)),
+                  const Icon(Icons.map_outlined)
+                ],
               );
             } else {
-              _controller.nextPage(duration: Duration(milliseconds: 500), curve: Curves.ease);
+              return const Icon(Icons.arrow_forward);
             }
-          },
-          child: Icon(Icons.arrow_forward),
+          }
+        )
       ),
     );
   }

frontend/lib/pages/settings.dart

@@ -1,5 +1,6 @@
 import 'package:anyway/constants.dart';
 import 'package:anyway/main.dart';
+import 'package:anyway/pages/base_page.dart';
 import 'package:flutter/material.dart';
 import 'package:permission_handler/permission_handler.dart';
 import 'package:shared_preferences/shared_preferences.dart';
@@ -16,30 +17,37 @@ class SettingsPage extends StatefulWidget {
 class _SettingsPageState extends State<SettingsPage> {
   @override
   Widget build(BuildContext context) {
-    return ListView(
-      padding: EdgeInsets.all(15),
-      children: [
-        // First a round, centered image
-        Center(
-          child: CircleAvatar(
-            radius: 75,
-            child: Icon(Icons.settings, size: 100),
-          )
-        ),
-        Center(
-          child: Text('Global settings', style: TextStyle(fontSize: 24))
-        ),
+    return BasePage(
+      mainScreen: ListView(
+        padding: EdgeInsets.all(15),
+        children: [
+          // First a round, centered image
+          Center(
+            child: CircleAvatar(
+              radius: 75,
+              child: Icon(Icons.settings, size: 100),
+            )
+          ),
+          Center(
+            child: Text('Global settings', style: TextStyle(fontSize: 24))
+          ),
 
-        Divider(indent: 25, endIndent: 25, height: 50),
+          Divider(indent: 25, endIndent: 25, height: 50),
 
-        darkMode(),
-        setLocationUsage(),
-        setDebugMode(),
+          darkMode(),
+          setLocationUsage(),
+          setDebugMode(),
 
-        Divider(indent: 25, endIndent: 25, height: 50),
+          Divider(indent: 25, endIndent: 25, height: 50),
 
-        privacyInfo(),
-      ]
+          privacyInfo(),
+        ]
+      ),
+      title: Text('Settings'),
+      helpTexts: [
+        'Settings',
+        'Preferences set in this page are global and will affect the entire application.'
+      ],
     );
   }
 
@@ -169,7 +177,9 @@ class _SettingsPageState extends State<SettingsPage> {
     return Center(
       child: Column(
         children: [
-          Text('Our privacy policy is available under:'),
+          Text('AnyWay does not collect or store any of the data that is submitted via the app. The location of your trip is not stored. The location feature is only used to show your current location on the map, it is not transmitted to our servers.', textAlign: TextAlign.center),
+          Padding(padding: EdgeInsets.only(top: 3)),
+          Text('Our full privacy policy is available under:', textAlign: TextAlign.center),
           
           TextButton.icon(
             icon: Icon(Icons.info),

frontend/lib/structs/landmark.dart

@@ -24,8 +24,7 @@ final class Landmark extends LinkedListEntry<Landmark>{
   // description to be shown in the overview
   final String? nameEN;
   final String? websiteURL;
-  final String? wikipediaURL;
-  final String? imageURL;
+  String? imageURL; // not final because it can be patched
   final String? description;
   final Duration? duration;
   final bool? visited;
@@ -44,7 +43,6 @@ final class Landmark extends LinkedListEntry<Landmark>{
 
     this.nameEN,
     this.websiteURL,
-    this.wikipediaURL,
     this.imageURL,
     this.description,
     this.duration,
@@ -70,7 +68,6 @@ final class Landmark extends LinkedListEntry<Landmark>{
       final isSecondary = json['is_secondary'] as bool?;
       final nameEN = json['name_en'] as String?;
       final websiteURL = json['website_url'] as String?;
-      final wikipediaURL = json['wikipedia_url'] as String?;
       final imageURL = json['image_url'] as String?;
       final description = json['description'] as String?;
       var duration = Duration(minutes: json['duration'] ?? 0) as Duration?;
@@ -85,7 +82,6 @@ final class Landmark extends LinkedListEntry<Landmark>{
         isSecondary: isSecondary,
         nameEN: nameEN,
         websiteURL: websiteURL,
-        wikipediaURL: wikipediaURL,
         imageURL: imageURL,
         description: description,
         duration: duration,
@@ -112,7 +108,6 @@ final class Landmark extends LinkedListEntry<Landmark>{
     'is_secondary': isSecondary,
     'name_en': nameEN,
     'website_url': websiteURL,
-    'wikipedia_url': wikipediaURL,
     'image_url': imageURL,
     'description': description,
     'duration': duration?.inMinutes,
@@ -130,7 +125,7 @@ class LandmarkType {
   LandmarkType({required this.name, this.icon = const Icon(Icons.location_on)}) {
     switch (name) {
       case 'sightseeing':
-        icon = const Icon(Icons.church);
+        icon = const Icon(Icons.castle);
         break;
       case 'nature':
         icon = const Icon(Icons.eco);

frontend/lib/structs/trip.dart

@@ -113,10 +113,3 @@ LinkedList<Landmark> readLandmarks(SharedPreferences prefs, String? firstUUID) {
   }
   return landmarks;
 }
-
-
-
-void removeAllTripsFromPrefs () async {
-  SharedPreferences prefs = await SharedPreferences.getInstance();
-  prefs.clear();
-}

frontend/lib/utils/fetch_trip.dart

@@ -1,5 +1,6 @@
 import "dart:convert";
 import "dart:developer";
+import "package:anyway/utils/load_landmark_image.dart";
 import 'package:dio/dio.dart';
 
 import 'package:anyway/constants.dart';
@@ -85,6 +86,20 @@ fetchTrip(
 }
 
 
+patchLandmarkImage(Landmark landmark) async {
+  // patch the landmark to include an image from an external source
+  if (landmark.imageURL == null) {
+    String? newUrl = await getImageUrlFromName(landmark.name);
+    if (newUrl != null) {
+      landmark.imageURL = newUrl;
+    }
+  } else if (landmark.imageURL!.contains("photos.app.goo.gl")) {
+    // the image is a google photos link, we should get the image behind the link
+    String? newUrl = await getImageUrlFromGooglePhotos(landmark.imageURL!);
+    // also set the new url if it is null
+    landmark.imageURL = newUrl; 
+  }
+}
 
 Future<(Landmark, String?)> fetchLandmark(String uuid) async {
   final response = await dio.get(
@@ -101,5 +116,7 @@ Future<(Landmark, String?)> fetchLandmark(String uuid) async {
   log(response.data.toString());
   Map<String, dynamic> json = response.data;
   String? nextUUID = json["next_uuid"];
-  return (Landmark.fromJson(json), nextUUID);
+  Landmark landmark = Landmark.fromJson(json);
+  patchLandmarkImage(landmark);
+  return (landmark, nextUUID);
 }

frontend/lib/utils/get_first_page.dart

@@ -0,0 +1,41 @@
+import 'package:anyway/pages/current_trip.dart';
+import 'package:anyway/pages/onboarding.dart';
+import 'package:anyway/structs/trip.dart';
+import 'package:anyway/utils/load_trips.dart';
+import 'package:flutter/material.dart';
+
+Widget getFirstPage() {
+  SavedTrips trips = SavedTrips();
+  trips.loadTrips();
+
+  return ListenableBuilder(
+    listenable: trips,
+    builder: (BuildContext context, Widget? child) {
+      List<Trip> items = trips.trips;
+      if (items.isNotEmpty) {
+        return TripPage(trip: items[0]);
+      } else {
+        return OnboardingPage();
+      }
+    }
+  );
+  // Future<List<Trip>> trips = loadTrips();
+  // // test if there are any active trips
+  // // if there are, return the trip list
+  // // if there are not, return the onboarding page
+  // return FutureBuilder(
+  //   future: trips,
+  //   builder: (context, snapshot) {
+  //     if (snapshot.hasData) {
+  //       List<Trip> availableTrips = snapshot.data!;
+  //       if (availableTrips.isNotEmpty) {
+  //         return TripPage(trip: availableTrips[0]);
+  //       } else {
+  //         return OnboardingPage();
+  //       }
+  //     } else {
+  //       return CircularProgressIndicator();
+  //     }
+  //   }
+  // );
+}

frontend/lib/utils/load_landmark_image.dart

@@ -0,0 +1,71 @@
+import 'dart:developer';
+
+import 'package:dio/dio.dart';
+import 'package:fuzzywuzzy/fuzzywuzzy.dart';
+import 'dart:convert';
+
+import 'package:fuzzywuzzy/model/extracted_result.dart';
+
+const String baseUrl = "https://en.wikipedia.org/w/api.php";
+final Dio dio = Dio();
+
+Future<int?> bestPageMatch(String title) async {
+    final response = await dio.get(baseUrl, queryParameters: {
+        "action": "query",
+        "format": "json",
+        "list": "prefixsearch",
+        "pssearch": title,
+    });
+
+    final data = jsonDecode(response.toString());
+    log(data.toString());
+    final List<dynamic> results = data["query"]["prefixsearch"] ?? {};
+    final Map<String, int> titlesAndIds = {
+        for (var d in results) d["title"]: d["pageid"]
+    };
+    if (titlesAndIds.isEmpty) {
+        log("No pages found for $title");
+        return null;
+    }
+
+    // after the empty check, we can safely assume that there is a best match
+    final ExtractedResult<String> bestMatch = extractOne(
+      query: title,
+      choices: titlesAndIds.keys.toList(),
+      cutoff: 70,
+    );
+    return titlesAndIds[bestMatch.choice];
+}
+
+Future<String?> getImageUrl(int pageId) async {
+    final response = await dio.get(baseUrl, queryParameters: {
+        "action": "query",
+        "format": "json",
+        "prop": "pageimages",
+        "pageids": pageId,
+        "pithumbsize": 500,
+    });
+
+    final data = jsonDecode(response.toString());
+    final pageData = data["query"]["pages"][pageId.toString()];
+    return pageData["thumbnail"]?["source"];
+}
+
+Future<String?> getImageUrlFromName(String title) async {
+    int? pageId = await bestPageMatch(title);
+    if (pageId == null) {
+        return null;
+    }
+    return await getImageUrl(pageId);
+}
+
+
+Future<String?> getImageUrlFromGooglePhotos(String url) async {
+    // this is a very simple implementation that just gets the image behind the link
+    // it is not guaranteed to work for all google photos links
+    final response = await dio.get(url);
+    final data = response.toString();
+    final int start = data.indexOf("https://lh3.googleusercontent.com");
+    final int end = data.indexOf('"', start);
+    return data.substring(start, end);
+}

frontend/lib/utils/load_trips.dart

@@ -1,19 +1,39 @@
-import 'dart:collection';
-
 import 'package:anyway/structs/trip.dart';
-import 'package:anyway/structs/landmark.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 
-Future<List<Trip>> loadTrips() async {
-  SharedPreferences prefs = await SharedPreferences.getInstance();
+import 'package:flutter/foundation.dart';
 
-  List<Trip> trips = [];
-  Set<String> keys = prefs.getKeys();
-  for (String key in keys) {
-    if (key.startsWith('trip_')) {
-      String uuid = key.replaceFirst('trip_', '');
-      trips.add(Trip.fromPrefs(prefs, uuid));
+class SavedTrips extends ChangeNotifier {
+  List<Trip> _trips = [];
+
+  List<Trip> get trips => _trips;
+
+  void loadTrips() async {
+    SharedPreferences prefs = await SharedPreferences.getInstance();
+
+    List<Trip> trips = [];
+    Set<String> keys = prefs.getKeys();
+    for (String key in keys) {
+      if (key.startsWith('trip_')) {
+        String uuid = key.replaceFirst('trip_', '');
+        trips.add(Trip.fromPrefs(prefs, uuid));
+      }
     }
+    _trips = trips;
+    notifyListeners();
+  }
+
+  void addTrip(Trip trip) async {
+    SharedPreferences prefs = await SharedPreferences.getInstance();
+    trip.toPrefs(prefs);
+    _trips.add(trip);
+    notifyListeners();
+  }
+
+  void clearTrips () async {
+    SharedPreferences prefs = await SharedPreferences.getInstance();
+    prefs.clear();
+    _trips = [];
+    notifyListeners();
   }
-  return trips;
 }

frontend/pubspec.lock

@@ -232,6 +232,14 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  fuzzywuzzy:
+    dependency: "direct main"
+    description:
+      name: fuzzywuzzy
+      sha256: "3004379ffd6e7f476a0c2091f38f16588dc45f67de7adf7c41aa85dec06b432c"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.2.0"
   geocoding:
     dependency: "direct main"
     description:

frontend/pubspec.yaml

@@ -51,6 +51,7 @@ dependencies:
   flutter_launcher_icons: ^0.13.1
   permission_handler: ^11.3.1
   geolocator: ^13.0.1
+  fuzzywuzzy: ^1.2.0
 
 dev_dependencies:
   flutter_test:

frontend/test/widget_test.dart

@@ -1,30 +0,0 @@
-// This is a basic Flutter widget test.
-//
-// To perform an interaction with a widget in your test, use the WidgetTester
-// utility in the flutter_test package. For example, you can send tap and scroll
-// gestures. You can also use WidgetTester to find child widgets in the widget
-// tree, read text, and verify that the values of widget properties are correct.
-
-import 'package:flutter/material.dart';
-import 'package:flutter_test/flutter_test.dart';
-
-// import 'package:anyway/main.dart';
-import 'package:anyway/layout.dart';
-
-void main() {
-  testWidgets('Counter increments smoke test', (WidgetTester tester) async {
-    // Build our app and trigger a frame.
-    await tester.pumpWidget(BasePage(mainScreen: "map",));
-
-    // Verfiy that the title is displayed
-    expect(find.text('City Nav'), findsOneWidget);
-
-    // Tap the '+' icon and trigger a frame.
-    await tester.tap(find.byIcon(Icons.add));
-    await tester.pump();
-
-    // Verify that our counter has incremented.
-    expect(find.text('0'), findsNothing);
-    expect(find.text('1'), findsOneWidget);
-  });
-}

testing_image_query.py

@@ -0,0 +1,50 @@
+import httpx
+import json
+
+base_url = "https://en.wikipedia.org/w/api.php"
+
+def best_page_match(title) -> int:
+    params = {
+        "action": "query",
+        "format": "json",
+        "list": "prefixsearch",
+        "pssearch": title,
+    }
+    response = httpx.get(base_url, params=params)
+    data = response.json()
+    data = data.get("query", {}).get("prefixsearch", [])
+    titles_and_ids = {d["title"]: d["pageid"] for d in data}
+
+    for t in titles_and_ids:
+        if title.lower() == t.lower():
+            print("Matched")
+            return titles_and_ids[t]
+
+def get_image_url(page_id) -> str:
+    # https://en.wikipedia.org/w/api.php?action=query&titles=K%C3%B6lner%20Dom&prop=imageinfo&iiprop=url&format=json
+    params = {
+        "action": "query",
+        "format": "json",
+        "prop": "pageimages",
+        "pageids": page_id,
+        "pithumbsize": 500,
+    }
+    response = httpx.get(base_url, params=params)
+    data = response.json()
+    data = data.get("query", {}).get("pages", {})
+    data = data.get(str(page_id), {})
+    return data.get("thumbnail", {}).get("source")
+
+def get_image_url_from_title(title) -> str:
+    page_id = best_page_match(title)
+    if page_id is None:
+        return None
+    return get_image_url(page_id)
+
+
+print(get_image_url_from_title("kölner dom"))
+print(get_image_url_from_title("grossmünster"))
+print(get_image_url_from_title("eiffel tower"))
+print(get_image_url_from_title("taj mahal"))
+print(get_image_url_from_title("big ben"))
+