import {
  View,
  Text,
  TouchableOpacity,
  Modal,
  TouchableWithoutFeedback,
  Platform,
  Image as NativeImage,
} from "react-native";
import React, { useEffect, useState, useCallback } from "react";
import { useTailwind } from "tailwind-rn";
import { Image } from "expo-image";
import VideoModal from "../VideoModal";
import { useNavigation } from "@react-navigation/native";
import { follow, unfollow, block } from "../../utils/relation";
import baseRequest from "../../utils/baseRequest";
import { generateSignature } from "../../utils/crypto";
import Toast from "react-native-toast-message";
import { get } from "../../utils/storeInfo";
import { useImageViewer } from "../../context/ImageViewProvider";

export default function Post({ data }) {
  const tailwind = useTailwind();
  const navigation = useNavigation();
  const [like, setLike] = useState(data?.is_thumbed_up === 1 ? true : false);
  const [isFollowed, setIsFollowed] = useState(
    data?.is_followed === 1 ? true : false
  );
  const [showVideo, setShowVideo] = useState(false);

  //点赞和取消点赞功能
  const thumbsUp = async (id, times = 1) => {
    const apiUrl = process.env.EXPO_PUBLIC_API_URL;
    try {
      const base = await baseRequest();
      const signature = await generateSignature({
        moment_id: id,
        times: times,
        ...base,
      });
      const _response = await fetch(
        `${apiUrl}/api/moment/thumbs_up?signature=${signature}`,
        {
          method: "POST",
          headers: {
            "Content-Type": "application/json",
          },
          body: JSON.stringify({
            moment_id: id,
            times: times,
            ...base,
          }),
        }
      );
      const _data = await _response.json();
      if (_data.ret === -1) {
        Toast.show({
          type: "error",
          text1: _data.msg,
          topOffset: 60,
        });
        return;
      }
    } catch (error) {
      console.error(error);
    }
  };
  const handleLike = () => {
    setLike(!like);
    if (like) {
      thumbsUp(data.id, -1);
      return;
    }
    thumbsUp(data.id, 1);
  };

  //关注和取关功能
  const handleFollow = async () => {
    setIsFollowed(!isFollowed);
    const account = await get("account");
    if (isFollowed) {
      unfollow(account.mid, data.mid);
      return;
    }
    follow(account.mid, data.mid);
  };

  //帖子操作功能
  const [operationModalVisible, setOperationModalVisible] = useState(false);

  const formatZoneUpdateTime = useCallback((time) => {
    if (time === 0) return "今日";
    if (time === 1) return "昨日";
    return `${time}日前`;
  }, []);

  return (
    <View style={tailwind("flex flex-col")}>
      <View style={tailwind("flex pt-3.5 pb-1.5 pl-3.5")}>
        <View style={tailwind("flex flex-row")}>
          <TouchableWithoutFeedback
            onPress={() =>
              navigation.navigate("StreamerProfile", { mid: data?.mid })
            }
          >
            <Image
              style={tailwind("w-9 h-9 rounded-full")}
              source={data?.streamer_ext?.avatar?.images[0]?.urls[0]}
              contentFit="cover"
              transition={100}
              cachePolicy="disk"
            />
          </TouchableWithoutFeedback>
          <View
            style={tailwind("flex flex-col flex-1 justify-around ml-2 pr-4")}
          >
            <View
              style={tailwind("flex flex-row items-center justify-between")}
            >
              <Text style={tailwind("text-base font-medium text-white")}>
                {data?.streamer_ext?.name}
              </Text>
              <TouchableOpacity
                onPress={handleFollow}
                style={{
                  backgroundColor: isFollowed ? "#07050A" : "#FFFFFF1A",
                  borderColor: "#FFFFFF1A",
                  borderWidth: isFollowed ? 1 : 0,
                  ...tailwind(
                    "ml-1 justify-center items-center rounded-full px-3 h-6"
                  ),
                }}
              >
                <Text style={tailwind("text-white text-xs")}>
                  {isFollowed ? "已关注" : "关注"}
                </Text>
              </TouchableOpacity>
            </View>
            <Text style={tailwind("text-base text-white font-medium my-2")}>
              {data?.text}
            </Text>
            {/* 媒体展示 */}
            <View style={tailwind("pr-10 mb-1")}>
              {data.media_component.video_ids?.length === 0 ||
              data.media_component.video_ids === null ? (
                <ImageDisplay media={data.media_component?.images} />
              ) : (
                <TouchableOpacity
                  activeOpacity={1}
                  onPress={() => {
                    setShowVideo(true);
                  }}
                >
                  <View>
                    <PosterDisplay media={data.media_component?.videos[0]} />
                    <VideoModal
                      visible={showVideo}
                      setVisible={setShowVideo}
                      url={data.media_component.videos[0].urls[0]}
                    />
                  </View>
                </TouchableOpacity>
              )}
            </View>
            <View
              style={tailwind("flex flex-row items-center justify-between h-8")}
            >
              {data?.streamer_ext?.is_active_within_a_week === 1 ? (
                <TouchableOpacity
                  onPress={() =>
                    navigation.navigate("SpaceIntroduce", { mid: data?.mid })
                  }
                  style={tailwind("flex flex-row items-center")}
                >
                  <NativeImage
                    source={require("../../assets/icon/others/space_new_post.png")}
                  />
                  <Text style={tailwind("text-[#FF669E] font-medium text-xs")}>
                    空间
                    {formatZoneUpdateTime(
                      data?.streamer_ext
                        ?.days_elapsed_since_the_last_zones_update
                    )}
                    有更新
                  </Text>
                  <NativeImage
                    source={require("../../assets/icon/others/pinklink.png")}
                  />
                </TouchableOpacity>
              ) : (
                data?.streamer_ext?.zones?.length !== 0 && (
                  <TouchableOpacity
                    onPress={() =>
                      navigation.navigate("SpaceIntroduce", { mid: data?.mid })
                    }
                    style={tailwind("flex flex-row items-center")}
                  >
                    <Text
                      style={tailwind("text-[#FFFFFFB2] font-medium text-xs")}
                    >
                      查看TA的空间
                    </Text>
                    <NativeImage
                      style={{ right: 10, transform: [{ scale: 0.75 }] }}
                      source={require("../../assets/icon/32DP/smalllink.png")}
                    />
                  </TouchableOpacity>
                )
              )}
              <View style={tailwind("flex flex-row items-center ml-auto")}>
                <TouchableOpacity
                  style={tailwind("flex flex-row items-center")}
                  onPress={handleLike}
                >
                  {like ? (
                    <NativeImage
                      source={require("../../assets/icon/others/thumbup.png")}
                    />
                  ) : (
                    <NativeImage
                      source={require("../../assets/icon/others/notthumbup.png")}
                    />
                  )}
                  <Text
                    style={{
                      color: like ? "#FF669E" : "#FFFFFF80",
                      ...tailwind("text-xs"),
                    }}
                  >
                    {like ? "已赞" : "点赞"}
                  </Text>
                </TouchableOpacity>
                <TouchableOpacity
                  style={tailwind("ml-2")}
                  onPress={() =>
                    setOperationModalVisible(!operationModalVisible)
                  }
                >
                  <NativeImage
                    source={require("../../assets/icon/others/gray....png")}
                  />
                  <OperationModal
                    visible={operationModalVisible}
                    setVisible={setOperationModalVisible}
                    data={data}
                  />
                </TouchableOpacity>
              </View>
            </View>
          </View>
        </View>
      </View>
      <View style={tailwind("h-[3px] rounded-full mx-4 bg-[#FFFFFF26]")}></View>
    </View>
  );
}

//媒体为图片时展示内容的组件
function ImageDisplay({ media }) {
  const navigation = useNavigation();
  const tailwind = useTailwind();
  const images = media.map((item) => ({ url: item.urls[0] }));

  const { showImageViewer } = useImageViewer();

  if (images.length === 0) return null;

  return (
    <View style={tailwind("flex flex-row flex-wrap")}>
      {media.length > 1 ? (
        media.map((item, index) => (
          <TouchableOpacity
            activeOpacity={1}
            key={index}
            onPress={() => {
              showImageViewer({
                imageUrls: images,
                index: index,
              });
            }}
            style={{ aspectRatio: 1, ...tailwind("basis-1/3 p-0.5") }}
          >
            <Image
              style={tailwind("w-full h-full rounded")}
              source={item.urls[0]}
              contentFit="cover"
              transition={100}
              cachePolicy="disk"
            />
          </TouchableOpacity>
        ))
      ) : (
        <TouchableOpacity
          activeOpacity={1}
          onPress={() => {
            showImageViewer({
              imageUrls: images,
              index: 0,
            });
          }}
          style={{
            width:
              media[0].w < media[0].h ? (media[0].w / media[0].h) * 200 : 250,
            height:
              media[0].w < media[0].h ? 200 : (media[0].h / media[0].w) * 250,
          }}
        >
          <Image
            style={tailwind("w-full h-full rounded")}
            source={media[0].urls[0]}
            contentFit="contain"
            contentPosition="left top"
            transition={100}
            cachePolicy="disk"
          />
        </TouchableOpacity>
      )}
    </View>
  );
}

//媒体为视频时展示封面的组件
function PosterDisplay({ media }) {
  const tailwind = useTailwind();

  return (
    <View
      style={{
        width:
          media.cover_w < media.cover_h
            ? (media.cover_w / media.cover_h) * 200
            : 250,
        height:
          media.cover_w < media.cover_h
            ? 200
            : (media.cover_h / media.cover_w) * 250,
      }}
    >
      <Image
        style={tailwind("w-full h-full rounded")}
        source={media.cover_urls[0]}
        contentFit="cover"
        transition={100}
        cachePolicy="disk"
      />
      <View
        style={tailwind(
          "flex absolute w-full h-full left-0 top-0 z-10 justify-center items-center"
        )}
      >
        <NativeImage source={require("../../assets/icon/others/play.png")} />
      </View>
    </View>
  );
}

//帖子操作组件
function OperationModal({ visible, setVisible, data }) {
  const tailwind = useTailwind();
  const navigation = useNavigation();

  //拉黑
  const handleBlock = async () => {
    const account = await get("account");
    const subMid = account.mid;
    const objMid = data.mid;
    await block(subMid, objMid);
    setVisible(false);
  };

  //删除
  const handleDelete = async () => {
    const apiUrl = process.env.EXPO_PUBLIC_API_URL;
    try {
      const base = await baseRequest();
      const signature = await generateSignature({
        id: data.id,
        ...base,
      });
      const _response = await fetch(
        `${apiUrl}/api/moment/delete?signature=${signature}`,
        {
          method: "POST",
          headers: {
            "Content-Type": "application/json",
          },
          body: JSON.stringify({
            id: data.id,
            ...base,
          }),
        }
      );
      const _data = await _response.json();
      if (_data.ret === -1) {
        Toast.show({
          type: "error",
          text1: _data.msg,
          topOffset: 60,
        });
        return;
      }
      Toast.show({
        type: "success",
        text1: "删除成功，请刷新页面",
        topOffset: 60,
      });
      return;
    } catch (error) {
      console.error(error);
    } finally {
      setVisible(false);
    }
  };

  //判断是否展示删除、拉黑、举报功能
  const [display, setDisPlay] = useState({
    delete: false,
    block: true,
    feedback: true,
  });
  useEffect(() => {
    const checkAuth = async () => {
      const account = await get("account");
      if (account.mid === data.mid || account.role === 1 || account.role === 2)
        setDisPlay((prev) => {
          return { ...prev, delete: true };
        });
      if (account.mid === data.mid)
        setDisPlay((prev) => {
          return { ...prev, block: false, feedback: false };
        });
    };
    checkAuth();
  }, []);

  return (
    <Modal
      visible={visible}
      statusBarTranslucent
      transparent={true}
      style={tailwind("flex-1")}
    >
      <TouchableOpacity
        activeOpacity={1}
        onPress={() => setVisible(false)}
        style={{
          backgroundColor: "#00000080",
          ...tailwind("flex flex-1 items-center justify-center"),
        }}
      >
        <TouchableOpacity
          activeOpacity={1}
          style={tailwind(
            "flex flex-col p-2 rounded-2xl bg-[#1E1C29] items-center justify-center w-3/4"
          )}
        >
          {display.feedback && (
            <View style={tailwind("flex flex-col w-full items-center")}>
              <TouchableOpacity
                onPress={() => {
                  navigation.navigate("MessageDetail", { mid: 1 });
                  setVisible(false);
                }}
                style={tailwind("flex flex-col w-full py-2 items-center")}
              >
                <Text style={tailwind("text-base text-white font-medium")}>
                  举报
                </Text>
              </TouchableOpacity>
              <View
                style={tailwind(
                  "h-[1px] w-full rounded-full mx-4 bg-[#FFFFFF26]"
                )}
              ></View>
            </View>
          )}
          {display.block && (
            <View style={tailwind("flex flex-col w-full items-center")}>
              <TouchableOpacity
                onPress={handleBlock}
                style={tailwind("flex flex-col w-full py-2 items-center")}
              >
                <Text style={tailwind("text-base text-white font-medium")}>
                  拉黑
                </Text>
              </TouchableOpacity>
              <View
                style={tailwind(
                  "h-[1px] w-full rounded-full mx-4 bg-[#FFFFFF26]"
                )}
              ></View>
            </View>
          )}
          {display.delete && (
            <View style={tailwind("flex flex-col w-full items-center")}>
              <TouchableOpacity
                onPress={handleDelete}
                style={tailwind("flex flex-col w-full py-2 items-center")}
              >
                <Text style={tailwind("text-base text-white font-medium")}>
                  删除
                </Text>
              </TouchableOpacity>
              <View
                style={tailwind(
                  "h-[1px] w-full rounded-full mx-4 bg-[#FFFFFF26]"
                )}
              ></View>
            </View>
          )}
          <TouchableOpacity
            onPress={() => setVisible(false)}
            style={tailwind("flex flex-col w-full py-2 items-center")}
          >
            <Text style={tailwind("text-base text-white font-medium")}>
              关闭
            </Text>
          </TouchableOpacity>
        </TouchableOpacity>
      </TouchableOpacity>
    </Modal>
  );
}