1 files changed, 243 insertions, 0 deletions
diff --git a/src/frontend/app/AppContext.tsx b/src/frontend/app/AppContext.tsx
new file mode 100644
index 0000000..7ca85bd
--- /dev/null
+++ b/src/frontend/app/AppContext.tsx
@@ -0,0 +1,243 @@
+/* eslint-disable react-refresh/only-export-components */
+import { createContext, useContext, useEffect, useState, type ReactNode } from 'react';
+import { type LngLatLike } from 'maplibre-gl';
+
+type Theme = 'light' | 'dark';
+type TableStyle = 'regular'|'grouped';
+type MapPositionMode = 'gps' | 'last';
+
+interface MapState {
+  center: LngLatLike;
+  zoom: number;
+  userLocation: LngLatLike | null;
+  hasLocationPermission: boolean;
+}
+
+interface AppContextProps {
+  theme: Theme;
+  setTheme: React.Dispatch<React.SetStateAction<Theme>>;
+  toggleTheme: () => void;
+
+  tableStyle: TableStyle;
+  setTableStyle: React.Dispatch<React.SetStateAction<TableStyle>>;
+  toggleTableStyle: () => void;
+
+  mapState: MapState;
+  setMapCenter: (center: LngLatLike) => void;
+  setMapZoom: (zoom: number) => void;
+  setUserLocation: (location: LngLatLike | null) => void;
+  setLocationPermission: (hasPermission: boolean) => void;
+  updateMapState: (center: LngLatLike, zoom: number) => void;
+
+  mapPositionMode: MapPositionMode;
+  setMapPositionMode: (mode: MapPositionMode) => void;
+}
+
+// Coordenadas por defecto centradas en Vigo
+const DEFAULT_CENTER: LngLatLike = [42.229188855975046, -8.72246955783102];
+const DEFAULT_ZOOM = 14;
+
+const AppContext = createContext<AppContextProps | undefined>(undefined);
+
+export const AppProvider = ({ children }: { children: ReactNode }) => {
+  //#region Theme
+  const [theme, setTheme] = useState<Theme>(() => {
+    const savedTheme = localStorage.getItem('theme');
+    if (savedTheme) {
+      return savedTheme as Theme;
+    }
+    const prefersDark = window.matchMedia && window.matchMedia('(prefers-color-scheme: dark)').matches;
+    return prefersDark ? 'dark' : 'light';
+  });
+
+  const toggleTheme = () => {
+    setTheme((prevTheme) => (prevTheme === 'light' ? 'dark' : 'light'));
+  };
+
+  useEffect(() => {
+    document.documentElement.setAttribute('data-theme', theme);
+    localStorage.setItem('theme', theme);
+  }, [theme]);
+  //#endregion
+
+  //#region Table Style
+  const [tableStyle, setTableStyle] = useState<TableStyle>(() => {
+    const savedTableStyle = localStorage.getItem('tableStyle');
+    if (savedTableStyle) {
+      return savedTableStyle as TableStyle;
+    }
+    return 'regular';
+  });
+
+  const toggleTableStyle = () => {
+    setTableStyle((prevTableStyle) => (prevTableStyle === 'regular' ? 'grouped' : 'regular'));
+  }
+
+  useEffect(() => {
+    localStorage.setItem('tableStyle', tableStyle);
+  }, [tableStyle]);
+  //#endregion
+
+  //#region Map Position Mode
+  const [mapPositionMode, setMapPositionMode] = useState<MapPositionMode>(() => {
+    const saved = localStorage.getItem('mapPositionMode');
+    return saved === 'last' ? 'last' : 'gps';
+  });
+
+  useEffect(() => {
+    localStorage.setItem('mapPositionMode', mapPositionMode);
+  }, [mapPositionMode]);
+  //#endregion
+
+  //#region Map State
+  const [mapState, setMapState] = useState<MapState>(() => {
+    const savedMapState = localStorage.getItem('mapState');
+    if (savedMapState) {
+      try {
+        const parsed = JSON.parse(savedMapState);
+        return {
+          center: parsed.center || DEFAULT_CENTER,
+          zoom: parsed.zoom || DEFAULT_ZOOM,
+          userLocation: parsed.userLocation || null,
+          hasLocationPermission: parsed.hasLocationPermission || false
+        };
+      } catch (e) {
+        console.error('Error parsing saved map state', e);
+      }
+    }
+    return {
+      center: DEFAULT_CENTER,
+      zoom: DEFAULT_ZOOM,
+      userLocation: null,
+      hasLocationPermission: false
+    };
+  });
+
+  // Helper: check if coordinates are within Vigo bounds
+  function isWithinVigo(lngLat: LngLatLike): boolean {
+    let lng: number, lat: number;
+    if (Array.isArray(lngLat)) {
+      [lng, lat] = lngLat;
+    } else if ('lng' in lngLat && 'lat' in lngLat) {
+      lng = lngLat.lng;
+      lat = lngLat.lat;
+    } else {
+      return false;
+    }
+    // Rough bounding box for Vigo
+    return lat >= 42.18 && lat <= 42.30 && lng >= -8.78 && lng <= -8.65;
+  }
+
+  // On app load, if mapPositionMode is 'gps', try to get GPS and set map center
+  useEffect(() => {
+    if (mapPositionMode === 'gps') {
+      if (navigator.geolocation) {
+        navigator.geolocation.getCurrentPosition(
+          (position) => {
+            const { latitude, longitude } = position.coords;
+            const coords: LngLatLike = [latitude, longitude];
+            if (isWithinVigo(coords)) {
+              setMapState(prev => {
+                const newState = { ...prev, center: coords, zoom: 16, userLocation: coords };
+                localStorage.setItem('mapState', JSON.stringify(newState));
+                return newState;
+              });
+            }
+          },
+          () => {
+            // Ignore error, fallback to last
+          }
+        );
+      }
+    }
+    // If 'last', do nothing (already loaded from localStorage)
+  }, [mapPositionMode]);
+
+  const setMapCenter = (center: LngLatLike) => {
+    setMapState(prev => {
+      const newState = { ...prev, center };
+      localStorage.setItem('mapState', JSON.stringify(newState));
+      return newState;
+    });
+  };
+
+  const setMapZoom = (zoom: number) => {
+    setMapState(prev => {
+      const newState = { ...prev, zoom };
+      localStorage.setItem('mapState', JSON.stringify(newState));
+      return newState;
+    });
+  };
+
+  const setUserLocation = (userLocation: LngLatLike | null) => {
+    setMapState(prev => {
+      const newState = { ...prev, userLocation };
+      localStorage.setItem('mapState', JSON.stringify(newState));
+      return newState;
+    });
+  };
+
+  const setLocationPermission = (hasLocationPermission: boolean) => {
+    setMapState(prev => {
+      const newState = { ...prev, hasLocationPermission };
+      localStorage.setItem('mapState', JSON.stringify(newState));
+      return newState;
+    });
+  };
+
+  const updateMapState = (center: LngLatLike, zoom: number) => {
+    setMapState(prev => {
+      const newState = { ...prev, center, zoom };
+      localStorage.setItem('mapState', JSON.stringify(newState));
+      return newState;
+    });
+  };
+  //#endregion
+
+  // Tratar de obtener la ubicación del usuario cuando se carga la aplicación si ya se había concedido permiso antes
+  useEffect(() => {
+    if (mapState.hasLocationPermission && !mapState.userLocation) {
+      if (navigator.geolocation) {
+        navigator.geolocation.getCurrentPosition(
+          (position) => {
+            const { latitude, longitude } = position.coords;
+            setUserLocation([latitude, longitude]);
+          },
+          (error) => {
+            console.error('Error getting location:', error);
+            setLocationPermission(false);
+          }
+        );
+      }
+    }
+  }, [mapState.hasLocationPermission, mapState.userLocation]);
+
+  return (
+    <AppContext.Provider value={{
+      theme,
+      setTheme,
+      toggleTheme,
+      tableStyle,
+      setTableStyle,
+      toggleTableStyle,
+      mapState,
+      setMapCenter,
+      setMapZoom,
+      setUserLocation,
+      setLocationPermission,
+      updateMapState,
+      mapPositionMode,
+      setMapPositionMode
+    }}>
+      {children}
+    </AppContext.Provider>
+  );
+};
+
+export const useApp = () => {
+  const context = useContext(AppContext);
+  if (!context) {
+    throw new Error('useApp must be used within a AppProvider');
+  }
+  return context;
+};