import React, { useEffect, useRef } from "react";
import { Image, LayoutAnimation, Platform, View } from "react-native";
import type { LocationObject } from "expo-location";
import MapView, { Marker } from "react-native-maps";
import type { StationProps } from "@/lib/CommonTypes";

type MenuMapProps = {
  mapHeight: number;
  mapFullHeight: number;
  mapMode: boolean;
  backgroundColor: string;
  isDark: boolean;
  isHeavyContentReady: boolean;
  listIndex: number;
  listUpStation: StationProps[][];
  position: LocationObject | undefined;
  mapPaddingTop: number;
  mapPaddingBottom: number;
  setMapMode: React.Dispatch<React.SetStateAction<boolean>>;
  setListIndex: (index: number) => void;
  onGoToMap: () => void;
  onReturnToTop: () => void;
};

const MAP_PIN_SIZE = Platform.OS === "android" ? 32 : 36;
const ANDROID_USER_LOCATION_MARKER_SIZE = 18;
const ANDROID_USER_LOCATION_INNER_SIZE = 8;

const configureMapLayoutAnimation = () => {
  LayoutAnimation.configureNext({
    duration: 300,
    create: {
      type: LayoutAnimation.Types.easeInEaseOut,
      property: LayoutAnimation.Properties.opacity,
    },
    update: {
      type: LayoutAnimation.Types.easeInEaseOut,
      property: LayoutAnimation.Properties.opacity,
    },
  });
};

const MenuMapComponent = ({
  mapHeight,
  mapFullHeight,
  mapMode,
  backgroundColor,
  isDark,
  isHeavyContentReady,
  listIndex,
  listUpStation,
  position,
  mapPaddingTop,
  mapPaddingBottom,
  setMapMode,
  setListIndex,
  onGoToMap,
  onReturnToTop,
}: MenuMapProps) => {
  const mapsRef = useRef(null);

  useEffect(() => {
    if (!isHeavyContentReady) return;
    if (!mapsRef.current) return;
    if (listUpStation.length === 0) return;
    if (listUpStation[listIndex] == undefined) return;

    const { lat, lng } = listUpStation[listIndex][0];
    const mapRegion = {
      latitude: lat,
      longitude: lng,
      latitudeDelta: 0.05,
      longitudeDelta: 0.05,
    };

    if (mapMode) {
      mapsRef.current.fitToCoordinates(
        listUpStation.map((stationGroup) => ({
          latitude: stationGroup[0].lat,
          longitude: stationGroup[0].lng,
        })),
        {
          edgePadding: {
            top: mapPaddingTop,
            bottom: mapPaddingBottom,
            left: 50,
            right: 50,
          },
        },
      );
    } else {
      mapsRef.current.animateToRegion(mapRegion, 1000);
    }
  // mapMode と padding の変更時には、既存挙動どおり個別追従しない
  // eslint-disable-next-line react-hooks/exhaustive-deps
  }, [isHeavyContentReady, listIndex, listUpStation]);

  const handleMapTouch = () => {
    configureMapLayoutAnimation();
    setMapMode(true);
    onGoToMap();
  };

  const handleMarkerPress = (
    station: { lat: number; lng: number },
    index: number,
  ) => {
    setMapMode(false);
    setListIndex(index);
    if (mapsRef.current) {
      mapsRef.current.animateToRegion(
        {
          latitude: station.lat,
          longitude: station.lng,
          latitudeDelta: 0.05,
          longitudeDelta: 0.05,
        },
        1000,
      );
    }
    configureMapLayoutAnimation();
    onReturnToTop();
  };

  if (!isHeavyContentReady) {
    return (
      <View
        style={{
          width: "100%",
          height: mapMode ? mapFullHeight : mapHeight,
          backgroundColor,
        }}
      />
    );
  }

  return (
    <MapView
      ref={mapsRef}
      style={{ width: "100%", height: mapMode ? mapFullHeight : mapHeight }}
      showsUserLocation={Platform.OS !== "android"}
      loadingEnabled={true}
      showsMyLocationButton={false}
      moveOnMarkerPress={false}
      showsCompass={false}
      userInterfaceStyle={isDark ? "dark" : "light"}
      //provider={PROVIDER_GOOGLE}
      initialRegion={{
        latitude: 33.774519,
        longitude: 133.533306,
        latitudeDelta: 1.8,
        longitudeDelta: 1.8,
      }}
      onTouchStart={handleMapTouch}
    >
      {Platform.OS === "android" && position ? (
        <Marker
          key="android-user-location"
          coordinate={{
            latitude: position.coords.latitude,
            longitude: position.coords.longitude,
          }}
          anchor={{ x: 0.5, y: 0.5 }}
          tracksViewChanges={false}
          zIndex={999}
        >
          <View
            style={{
              width: ANDROID_USER_LOCATION_MARKER_SIZE,
              height: ANDROID_USER_LOCATION_MARKER_SIZE,
              borderRadius: ANDROID_USER_LOCATION_MARKER_SIZE / 2,
              backgroundColor: "rgba(10, 132, 255, 0.24)",
              borderWidth: 1,
              borderColor: "rgba(10, 132, 255, 0.42)",
              alignItems: "center",
              justifyContent: "center",
            }}
          >
            <View
              style={{
                width: ANDROID_USER_LOCATION_INNER_SIZE,
                height: ANDROID_USER_LOCATION_INNER_SIZE,
                borderRadius: ANDROID_USER_LOCATION_INNER_SIZE / 2,
                backgroundColor: "#0A84FF",
                borderWidth: 1,
                borderColor: "#ffffff",
              }}
            />
          </View>
        </Marker>
      ) : null}
      {listUpStation.map(([{ lat, lng, StationNumber }], index) => (
        <Marker
          key={index + StationNumber}
          coordinate={{ latitude: lat, longitude: lng }}
          anchor={{ x: 0.5, y: 1 }}
          tracksViewChanges={false}
          onPress={() => handleMarkerPress({ lat, lng }, index)}
        >
          <Image
            source={require("@/assets/reccha-small.png")}
            style={{ width: MAP_PIN_SIZE, height: MAP_PIN_SIZE }}
            resizeMode="contain"
          />
        </Marker>
      ))}
    </MapView>
  );
};

export const MenuMap = React.memo(MenuMapComponent);
MenuMap.displayName = "MenuMap";