From 9a4b587853cb4115b4b6442ba5143d490484e82e Mon Sep 17 00:00:00 2001
From: devthejo <devthejo@protonmail.com>
Date: Sun, 8 Mar 2026 08:47:01 +0100
Subject: [PATCH] feat(dae): itinerary

---
 src/scenes/DAEItem/Carte.js | 388 ++++++++++++++++++++++--------------
 1 file changed, 237 insertions(+), 151 deletions(-)

diff --git a/src/scenes/DAEItem/Carte.js b/src/scenes/DAEItem/Carte.js
index b08b351..28788f3 100644
--- a/src/scenes/DAEItem/Carte.js
+++ b/src/scenes/DAEItem/Carte.js
@@ -9,7 +9,7 @@ import { View, StyleSheet } from "react-native";
 import Maplibre from "@maplibre/maplibre-react-native";
 import polyline from "@mapbox/polyline";
 import { MaterialCommunityIcons } from "@expo/vector-icons";
-import { Button } from "react-native-paper";
+import Drawer from "react-native-drawer";
 
 import MapView from "~/containers/Map/MapView";
 import Camera from "~/containers/Map/Camera";
@@ -18,12 +18,26 @@ import { DEFAULT_ZOOM_LEVEL } from "~/containers/Map/constants";
 import StepZoomButtonGroup from "~/containers/Map/StepZoomButtonGroup";
 
 import Text from "~/components/Text";
-import Loader from "~/components/Loader";
+import IconTouchTarget from "~/components/IconTouchTarget";
 import { useTheme } from "~/theme";
 import { useDefibsState, useNetworkState } from "~/stores";
 import useLocation from "~/hooks/useLocation";
 import { getDefibAvailability } from "~/utils/dae/getDefibAvailability";
-import { osmProfileUrl } from "~/scenes/AlertCurMap/routing";
+import { osmProfileUrl, profileDefaultModes } from "~/scenes/AlertCurMap/routing";
+import { routeToInstructions } from "~/lib/geo/osrmTextInstructions";
+import {
+  announceForA11yIfScreenReaderEnabled,
+  setA11yFocusAfterInteractions,
+} from "~/lib/a11y";
+
+import RoutingSteps from "~/scenes/AlertCurMap/RoutingSteps";
+import MapHeadRouting from "~/scenes/AlertCurMap/MapHeadRouting";
+
+import {
+  STATE_CALCULATING_INIT,
+  STATE_CALCULATING_LOADED,
+  STATE_CALCULATING_LOADING,
+} from "~/scenes/AlertCurMap/constants";
 
 const STATUS_COLORS = {
   open: "#4CAF50",
@@ -31,21 +45,6 @@ const STATUS_COLORS = {
   unknown: "#9E9E9E",
 };
 
-function formatDuration(seconds) {
-  if (!seconds || seconds <= 0) return "";
-  const mins = Math.round(seconds / 60);
-  if (mins < 60) return `${mins} min`;
-  const h = Math.floor(mins / 60);
-  const m = mins % 60;
-  return m > 0 ? `${h}h${m}` : `${h}h`;
-}
-
-function formatDistance(meters) {
-  if (!meters || meters <= 0) return "";
-  if (meters < 1000) return `${Math.round(meters)} m`;
-  return `${(meters / 1000).toFixed(1)} km`;
-}
-
 export default React.memo(function DAEItemCarte() {
   const { colors } = useTheme();
   const { selectedDefib: defib } = useDefibsState(["selectedDefib"]);
@@ -67,11 +66,13 @@ export default React.memo(function DAEItemCarte() {
   const hasDefibCoords = defib && defib.latitude && defib.longitude;
 
   const [routeCoords, setRouteCoords] = useState(null);
-  const [routeInfo, setRouteInfo] = useState(null);
   const [routeError, setRouteError] = useState(null);
   const [loadingRoute, setLoadingRoute] = useState(false);
+  const [route, setRoute] = useState(null);
+  const [calculating, setCalculating] = useState(STATE_CALCULATING_INIT);
 
-  const profile = "foot"; // walking itinerary to defib
+  const defaultProfile = "foot";
+  const [profile, setProfile] = useState(defaultProfile);
 
   // Compute route
   useEffect(() => {
@@ -89,6 +90,7 @@ export default React.memo(function DAEItemCarte() {
 
     const fetchRoute = async () => {
       setLoadingRoute(true);
+      setCalculating(STATE_CALCULATING_LOADING);
       setRouteError(null);
       try {
         const origin = `${coords.longitude},${coords.latitude}`;
@@ -100,15 +102,13 @@ export default React.memo(function DAEItemCarte() {
         const result = await res.json();
 
         if (result.routes && result.routes.length > 0) {
-          const route = result.routes[0];
+          const fetchedRoute = result.routes[0];
           const decoded = polyline
-            .decode(route.geometry)
+            .decode(fetchedRoute.geometry)
             .map((p) => p.reverse());
           setRouteCoords(decoded);
-          setRouteInfo({
-            distance: route.distance,
-            duration: route.duration,
-          });
+          setRoute(fetchedRoute);
+          setCalculating(STATE_CALCULATING_LOADED);
         }
       } catch (err) {
         if (err.name !== "AbortError") {
@@ -134,6 +134,75 @@ export default React.memo(function DAEItemCarte() {
     profile,
   ]);
 
+  // Compute instructions from route steps
+  const allSteps = useMemo(() => {
+    if (!route) return [];
+    return route.legs.flatMap((leg) => leg.steps);
+  }, [route]);
+
+  const instructions = useMemo(() => {
+    if (allSteps.length === 0) return [];
+    return routeToInstructions(allSteps);
+  }, [allSteps]);
+
+  const distance = useMemo(
+    () => allSteps.reduce((acc, step) => acc + (step?.distance || 0), 0),
+    [allSteps],
+  );
+  const duration = useMemo(
+    () => allSteps.reduce((acc, step) => acc + (step?.duration || 0), 0),
+    [allSteps],
+  );
+
+  const destinationName = useMemo(() => {
+    if (!route) return defib?.nom || "";
+    const { legs } = route;
+    const lastLeg = legs[legs.length - 1];
+    if (!lastLeg) return defib?.nom || "";
+    const { steps } = lastLeg;
+    const lastStep = steps[steps.length - 1];
+    return lastStep?.name || defib?.nom || "";
+  }, [route, defib]);
+
+  // Stepper drawer state
+  const [stepperIsOpened, setStepperIsOpened] = useState(false);
+  const routingSheetTitleA11yRef = useRef(null);
+  const a11yStepsEntryRef = useRef(null);
+  const mapHeadOpenRef = useRef(null);
+  const mapHeadSeeAllRef = useRef(null);
+  const lastStepsTriggerRef = useRef(null);
+
+  const openStepper = useCallback(
+    (triggerRef) => {
+      if (triggerRef) {
+        lastStepsTriggerRef.current = triggerRef;
+      }
+      setStepperIsOpened(true);
+    },
+    [],
+  );
+
+  const closeStepper = useCallback(() => {
+    setStepperIsOpened(false);
+    setA11yFocusAfterInteractions(lastStepsTriggerRef);
+  }, []);
+
+  const stepperOnOpen = useCallback(() => {
+    if (!stepperIsOpened) {
+      setStepperIsOpened(true);
+    }
+    setA11yFocusAfterInteractions(routingSheetTitleA11yRef);
+    announceForA11yIfScreenReaderEnabled("Liste des étapes ouverte");
+  }, [stepperIsOpened]);
+
+  const stepperOnClose = useCallback(() => {
+    if (stepperIsOpened) {
+      setStepperIsOpened(false);
+    }
+    announceForA11yIfScreenReaderEnabled("Liste des étapes fermée");
+    setA11yFocusAfterInteractions(lastStepsTriggerRef);
+  }, [stepperIsOpened]);
+
   // Defib marker GeoJSON
   const defibGeoJSON = useMemo(() => {
     if (!hasDefibCoords) return null;
@@ -183,6 +252,8 @@ export default React.memo(function DAEItemCarte() {
     };
   }, [hasUserCoords, hasDefibCoords, coords, defib]);
 
+  const profileDefaultMode = profileDefaultModes[profile];
+
   if (!defib) return null;
 
   return (
@@ -211,119 +282,150 @@ export default React.memo(function DAEItemCarte() {
         </View>
       )}
 
-      {/* Route info bar */}
-      {routeInfo && (
-        <View
-          style={[
-            styles.routeInfoBar,
-            {
-              backgroundColor: colors.surface,
-              borderBottomColor: colors.outlineVariant || colors.grey,
-            },
-          ]}
-        >
-          <MaterialCommunityIcons
-            name="walk"
-            size={20}
-            color={colors.primary}
+      <Drawer
+        type="overlay"
+        tweenHandler={(ratio) => ({
+          main: { opacity: (2 - ratio) / 2 },
+        })}
+        tweenDuration={250}
+        openDrawerOffset={40}
+        open={stepperIsOpened}
+        onOpen={stepperOnOpen}
+        onClose={stepperOnClose}
+        tapToClose
+        negotiatePan
+        content={
+          <RoutingSteps
+            setProfile={setProfile}
+            profile={profile}
+            closeStepper={closeStepper}
+            destinationName={destinationName}
+            distance={distance}
+            duration={duration}
+            instructions={instructions}
+            calculatingState={calculating}
+            titleA11yRef={routingSheetTitleA11yRef}
           />
-          <Text style={styles.routeInfoText}>
-            {formatDistance(routeInfo.distance)}
-            {routeInfo.duration
-              ? ` · ${formatDuration(routeInfo.duration)}`
-              : ""}
-          </Text>
-          {loadingRoute && (
-            <Text
-              style={[
-                styles.routeInfoLoading,
-                { color: colors.onSurfaceVariant || colors.grey },
-              ]}
-            >
-              Mise à jour…
-            </Text>
+        }
+      >
+        <View style={{ flex: 1 }}>
+          {/* A11y entry point for routing steps */}
+          <IconTouchTarget
+            ref={a11yStepsEntryRef}
+            accessibilityLabel="Ouvrir la liste des étapes de l'itinéraire"
+            accessibilityHint="Affiche la destination, la distance, la durée et toutes les étapes sans utiliser la carte."
+            onPress={() => openStepper(a11yStepsEntryRef)}
+            style={({ pressed }) => ({
+              position: "absolute",
+              top: 4,
+              left: 4,
+              zIndex: 10,
+              backgroundColor: colors.surface,
+              borderRadius: 8,
+              opacity: pressed ? 0.7 : 1,
+            })}
+          >
+            <MaterialCommunityIcons
+              name="format-list-bulleted"
+              size={24}
+              color={colors.onSurface}
+            />
+          </IconTouchTarget>
+
+          <MapView
+            mapRef={mapRef}
+            compassViewPosition={1}
+            compassViewMargin={{ x: 10, y: 10 }}
+          >
+            <Camera
+              cameraKey={cameraKey}
+              setCameraKey={setCameraKey}
+              refreshCamera={refreshCamera}
+              cameraRef={cameraRef}
+              followUserLocation={!bounds}
+              followUserMode={
+                bounds
+                  ? Maplibre.UserTrackingMode.None
+                  : Maplibre.UserTrackingMode.Follow
+              }
+              followPitch={0}
+              zoomLevel={zoomLevel}
+              bounds={bounds}
+              detached={false}
+            />
+
+            {/* Route line */}
+            {routeGeoJSON && (
+              <Maplibre.ShapeSource id="routeSource" shape={routeGeoJSON}>
+                <Maplibre.LineLayer
+                  id="routeLineLayer"
+                  style={{
+                    lineColor: "rgba(49, 76, 205, 0.84)",
+                    lineWidth: 4,
+                    lineCap: "round",
+                    lineJoin: "round",
+                    lineOpacity: 0.84,
+                  }}
+                />
+              </Maplibre.ShapeSource>
+            )}
+
+            {/* Defib marker */}
+            {defibGeoJSON && (
+              <Maplibre.ShapeSource id="defibItemSource" shape={defibGeoJSON}>
+                <Maplibre.CircleLayer
+                  id="defibItemCircle"
+                  style={{
+                    circleRadius: 10,
+                    circleColor: ["get", "color"],
+                    circleStrokeColor: "#FFFFFF",
+                    circleStrokeWidth: 2.5,
+                  }}
+                />
+                <Maplibre.SymbolLayer
+                  id="defibItemLabel"
+                  aboveLayerID="defibItemCircle"
+                  style={{
+                    textField: ["get", "nom"],
+                    textSize: 12,
+                    textOffset: [0, 1.8],
+                    textAnchor: "top",
+                    textMaxWidth: 14,
+                    textColor: colors.onSurface,
+                    textHaloColor: colors.surface,
+                    textHaloWidth: 1,
+                  }}
+                />
+              </Maplibre.ShapeSource>
+            )}
+
+            {/* User location */}
+            {isLastKnown && hasUserCoords ? (
+              <LastKnownLocationMarker
+                coordinates={coords}
+                timestamp={lastKnownTimestamp}
+                id="lastKnownLocation_daeItem"
+              />
+            ) : (
+              <Maplibre.UserLocation visible showsUserHeadingIndicator />
+            )}
+          </MapView>
+
+          {/* Head routing step overlay */}
+          {instructions.length > 0 && (
+            <MapHeadRouting
+              instructions={instructions}
+              distance={distance}
+              profileDefaultMode={profileDefaultMode}
+              openStepper={openStepper}
+              openStepperTriggerRef={mapHeadOpenRef}
+              seeAllStepsTriggerRef={mapHeadSeeAllRef}
+              calculatingState={calculating}
+            />
           )}
         </View>
-      )}
+      </Drawer>
 
-      <MapView
-        mapRef={mapRef}
-        compassViewPosition={1}
-        compassViewMargin={{ x: 10, y: 10 }}
-      >
-        <Camera
-          cameraKey={cameraKey}
-          setCameraKey={setCameraKey}
-          refreshCamera={refreshCamera}
-          cameraRef={cameraRef}
-          followUserLocation={!bounds}
-          followUserMode={
-            bounds
-              ? Maplibre.UserTrackingMode.None
-              : Maplibre.UserTrackingMode.Follow
-          }
-          followPitch={0}
-          zoomLevel={zoomLevel}
-          bounds={bounds}
-          detached={false}
-        />
-
-        {/* Route line */}
-        {routeGeoJSON && (
-          <Maplibre.ShapeSource id="routeSource" shape={routeGeoJSON}>
-            <Maplibre.LineLayer
-              id="routeLineLayer"
-              style={{
-                lineColor: "rgba(49, 76, 205, 0.84)",
-                lineWidth: 4,
-                lineCap: "round",
-                lineJoin: "round",
-                lineOpacity: 0.84,
-              }}
-            />
-          </Maplibre.ShapeSource>
-        )}
-
-        {/* Defib marker */}
-        {defibGeoJSON && (
-          <Maplibre.ShapeSource id="defibItemSource" shape={defibGeoJSON}>
-            <Maplibre.CircleLayer
-              id="defibItemCircle"
-              style={{
-                circleRadius: 10,
-                circleColor: ["get", "color"],
-                circleStrokeColor: "#FFFFFF",
-                circleStrokeWidth: 2.5,
-              }}
-            />
-            <Maplibre.SymbolLayer
-              id="defibItemLabel"
-              aboveLayerID="defibItemCircle"
-              style={{
-                textField: ["get", "nom"],
-                textSize: 12,
-                textOffset: [0, 1.8],
-                textAnchor: "top",
-                textMaxWidth: 14,
-                textColor: colors.onSurface,
-                textHaloColor: colors.surface,
-                textHaloWidth: 1,
-              }}
-            />
-          </Maplibre.ShapeSource>
-        )}
-
-        {/* User location */}
-        {isLastKnown && hasUserCoords ? (
-          <LastKnownLocationMarker
-            coordinates={coords}
-            timestamp={lastKnownTimestamp}
-            id="lastKnownLocation_daeItem"
-          />
-        ) : (
-          <Maplibre.UserLocation visible showsUserHeadingIndicator />
-        )}
-      </MapView>
       <StepZoomButtonGroup mapRef={mapRef} setZoomLevel={setZoomLevel} />
 
       {/* Route error */}
@@ -358,22 +460,6 @@ const styles = StyleSheet.create({
     fontSize: 13,
     flex: 1,
   },
-  routeInfoBar: {
-    flexDirection: "row",
-    alignItems: "center",
-    paddingHorizontal: 16,
-    paddingVertical: 10,
-    borderBottomWidth: StyleSheet.hairlineWidth,
-    gap: 8,
-  },
-  routeInfoText: {
-    fontSize: 15,
-    fontWeight: "600",
-    flex: 1,
-  },
-  routeInfoLoading: {
-    fontSize: 12,
-  },
   routeErrorOverlay: {
     position: "absolute",
     bottom: 16,