base structs as agreed upon

backend/src/main.py

@@ -10,6 +10,10 @@ from typing import List
 app = FastAPI()
 
 
+# TODO: needs a global variable to store the landmarks accross function calls
+# linked_tour = []
+
+
 # Assuming frontend is calling like this : 
 #"http://127.0.0.1:8000/process?param1={param1}&param2={param2}"
 @app.post("/optimizer_coords/{start_lat}/{start_lon}/{finish_lat}/{finish_lon}")
@@ -50,11 +54,22 @@ def main1(start_lat: float, start_lon: float, preferences: Preferences = Body(..
     
     # Second stage optimization
     refined_tour = refine_optimization(landmarks, base_tour, max_walking_time*60+detour, True)
+
+
+    # TODO: should look something like this 
+    # # set time to reach and transform into fully functional linked list
+    # linked_tour += link(refined_tour)
+    # return {
+    #     'city_name': 'Paris',
+    #     'n_stops': len(linked_tour),
+    #     'first_landmark_uuid': linked_tour[0].uuid,
+    # }
     
     return refined_tour
 
 
 
+
 # input city, country in the form of 'Paris, France'
 @app.post("/test2/{city_country}")
 def test2(city_country: str, preferences: Preferences = Body(...)) -> List[Landmark]:
@@ -67,4 +82,9 @@ def test2(city_country: str, preferences: Preferences = Body(...)) -> List[Landm
 
 
 
+@app.get("/landmark/{landmark_uuid}")
+def get_landmark(landmark_uuid: str) -> Landmark:
+    #cherche dans linked_tour et retourne le landmark correspondant
+    pass
+
 

backend/src/structs/landmarks.py

@@ -1,20 +1,30 @@
 from typing import Optional
-from pydantic import BaseModel
+from pydantic import BaseModel, Field
 
 from .landmarktype import LandmarkType
 
-
+from uuid import uuid4
 
 # Output to frontend
 class Landmark(BaseModel) :
+    # Unique ID of a given landmark
+    uuid: str = Field(default_factory=uuid4)                    # TODO implement this ASAP
+    
+    # Properties of the landmark
     name : str
     type: LandmarkType      # De facto mapping depending on how the query was executed with overpass. Should still EXACTLY correspond to the preferences
     location : tuple
     osm_type : str
     osm_id : int
     attractiveness : int
-    must_do : bool
     n_tags : int
-    time_to_reach : Optional[int] = 0
-
-
+    image_url : Optional[str] = None                            # TODO future
+    description : Optional[str] = None                          # TODO future
+    duration : Optional[int] = 0                                # TODO future
+    
+    # Additional properties depending on specific tour
+    must_do : bool
+    is_secondary : Optional[bool] = False                       # TODO future   
+    
+    time_to_reach_next : Optional[int] = 0                      # TODO fix this in existing code
+    next_uuid : Optional[str] = None                            # TODO implement this ASAP