import dbConnect from "../../lib/dbConnect";
import Match from "../../models/Match";
import { NextResponse } from "next/server";
import { setCORSHeaders, handleError } from "../../lib/apiUtils";
import moment from "moment-timezone/moment-timezone-utils";
import { withAuth } from "../../middleware/authMiddleware";
// 假设你的服务器时区是 'Asia/Shanghai'
const timezone = "Asia/Shanghai";

export async function GET(request) {
  await dbConnect();


  try {
    const { searchParams } = new URL(request.url);
    const action = searchParams.get("action");
    const type = searchParams.get("type");

    console.log("type", type);

    const current = parseInt(searchParams.get("current")) || 1;
    const pageSize = parseInt(searchParams.get("pageSize")) || 10;

    let response;
    const now = moment.tz(timezone);
    const currentDate = now.toDate();
    const currentTimeString = now.format("HH:mm");

    // 创建2小时前的时间点
    const twoHoursAgo = moment(now).subtract(2, "hours");
    const twoHoursAgoDate = twoHoursAgo.format("YYYY-MM-DD"); // 使用日期字符串
    const twoHoursAgoTime = twoHoursAgo.format("HH:mm");

    switch (action) {
      case "getMatches":
        const searchQuery = {};

        // 添加类型过滤
        if (type) {
          searchQuery.type = type;
        }

        for (const [key, value] of searchParams.entries()) {
          if (["action", "current", "pageSize", "type"].includes(key)) continue;

          switch (key) {
            case "homeTeamScore":
            case "awayTeamScore":
              searchQuery[key] = parseInt(value);
              break;
            case "date":
              searchQuery[key] = new Date(value);
              break;
            case "homeTeam":
            case "awayTeam":
              try {
                const teamQuery = JSON.parse(value);
                Object.entries(teamQuery).forEach(
                  ([nestedKey, nestedValue]) => {
                    searchQuery[`${key}.${nestedKey}`] = {
                      $regex: nestedValue,
                      $options: "i",
                    };
                  }
                );
              } catch (e) {
                searchQuery[`${key}.name`] = { $regex: value, $options: "i" };
              }
              break;
            // 根据比赛类型处理特定字段
            case "spread":
            case "totalPoints":
              if (type === "basketball") {
                searchQuery[`basketball.${key}`] = value;
              }
              break;
            case "firstTeamToScore":
              if (type === "football") {
                searchQuery[`football.result.${key}`] = value;
              }
              break;
            default:
              searchQuery[key] = { $regex: value, $options: "i" };
          }
        }

        console.log("Search Query:", searchQuery);

        // await Promise.all([
        //   // 更新所有开始超过2小时的比赛为已结束
        //   Match.updateMany(
        //     {
        //       $or: [
        //         // 早于今天的比赛
        //         { date: { $lt: twoHoursAgoDate } },
        //         // 今天的比赛且开始时间在2小时前
        //         {
        //           date: twoHoursAgoDate,
        //           time: { $lte: twoHoursAgoTime },
        //         },
        //       ],
        //       status: { $in: ["未开始", "进行中"] },
        //       ...(type ? { type } : {}),
        //     },
        //     { $set: { status: "已结束" } }
        //   ),

        //   // 更新其他应该进行中的比赛
        //   Match.updateMany(
        //     {
        //       date: { $lte: currentDate },
        //       time: { $lte: currentTimeString },
        //       status: "未开始",
        //       // 排除已经过去2小时的比赛（因为上面的查询会处理）
        //       $or: [
        //         { date: { $gt: twoHoursAgoDate } },
        //         {
        //           date: twoHoursAgoDate,
        //           time: { $gt: twoHoursAgoTime },
        //         },
        //       ],
        //       ...(type ? { type } : {}),
        //     },
        //     { $set: { status: "进行中" } }
        //   ),
        // ]);

        const skip = (current - 1) * pageSize;
        const totalMatches = await Match.countDocuments(searchQuery);
        const matchesData = await Match.find(searchQuery)
          .sort({ date: 1, time: 1 })
          .skip(skip)
          .limit(pageSize);

        response = NextResponse.json({
          success: true,
          total: totalMatches,
          data: matchesData,
        });
        break;

      case "getMatchDays":
        const typeFilter = type ? { type } : {};
        const currentDay = moment().tz(timezone).startOf("day");

        const futureMatches = await Match.find({
          date: { $gte: currentDay.toDate() },
          status: { $in: ["未开始", "进行中"] },
          ...typeFilter,
        }).sort("date");

        const formattedDays = formatMatches(futureMatches);
        response = NextResponse.json({ success: true, data: formattedDays });
        break;

      case "getMatchesByDate":
        const dateParam = searchParams.get("date");
        if (!dateParam) {
          return NextResponse.json(
            { success: false, error: "Date parameter is required" },
            { status: 400 }
          );
        }

        const startDate = moment
          .tz(dateParam, timezone)
          .startOf("day")
          .toDate();
        const endDate = moment.tz(dateParam, timezone).endOf("day").toDate();

        const dateTypeFilter = type ? { type } : {};

        const matches = await Match.find({
          date: { $gte: startDate, $lte: endDate },
          status: { $in: ["未开始", "进行中"] },
          ...dateTypeFilter,
        }).sort({ time: 1 });

        response = NextResponse.json({ success: true, data: matches });
        break;

      default:
        return NextResponse.json(
          { success: false, error: "Invalid action" },
          { status: 400 }
        );
    }

    return setCORSHeaders(response);
  } catch (error) {
    return handleError(error);
  }
}

export const POST = withAuth(async (request) => {
  await dbConnect();

  try {
    const matchData = await request.json();

    // console.log(11, matchData);

    // 验证比赛类型
    if (
      !matchData.type ||
      !["football", "basketball"].includes(matchData.type)
    ) {
      return NextResponse.json(
        { success: false, error: "Invalid match type" },
        { status: 400 }
      );
    }

    // 根据类型验证必要字段
    if (matchData.type === "basketball") {
      if (!matchData.basketball?.spread || !matchData.basketball?.totalPoints) {
        return NextResponse.json(
          { success: false, error: "Missing required basketball fields" },
          { status: 400 }
        );
      }
    }

    const match = new Match(matchData);
    await match.save();

    const response = NextResponse.json(
      { success: true, data: match },
      { status: 201 }
    );

    return setCORSHeaders(response);
  } catch (error) {
    console.error("插入比赛数据时出错:", error);
    return NextResponse.json(
      { success: false, error: "创建比赛失败" },
      { status: 500 }
    );
  }
});

export const PUT = withAuth(async (request) => {
  await dbConnect();

  try {
    const { id, type, ...updateData } = await request.json();

    if (!id) {
      return NextResponse.json(
        { success: false, error: "缺少比赛ID" },
        { status: 400 }
      );
    }

    // 根据类型验证更新数据
    if (type === "basketball") {
      const basketballFields = updateData.basketball;
      if (
        basketballFields &&
        (!basketballFields.spread || !basketballFields.totalPoints)
      ) {
        return NextResponse.json(
          { success: false, error: "Missing required basketball fields" },
          { status: 400 }
        );
      }
    }

    const updatedMatch = await Match.findByIdAndUpdate(id, updateData, {
      new: true,
      runValidators: true,
    });

    if (!updatedMatch) {
      return NextResponse.json(
        { success: false, error: "未找到指定比赛" },
        { status: 404 }
      );
    }

    const response = NextResponse.json(
      { success: true, data: updatedMatch },
      { status: 200 }
    );

    return setCORSHeaders(response);
  } catch (error) {
    console.error("更新比赛数据时出错:", error);
    return NextResponse.json(
      { success: false, error: "更新比赛失败" },
      { status: 500 }
    );
  }
});

export const DELETE = withAuth(async (request) => {
  console.log("DELETE request received");
  await dbConnect();

  try {
    const url = new URL(request.url);
    const id = url.searchParams.get("id");
    const ids = url.searchParams.get("ids");

    console.log("Received delete request for id:", id, "or ids:", ids);

    if (!id && !ids) {
      return NextResponse.json(
        { success: false, error: "缺少比赛ID" },
        { status: 400 }
      );
    }

    let deletedMatches;
    let message;

    if (id) {
      // 单个删除
      deletedMatches = await Match.findByIdAndDelete(id);
      message = deletedMatches ? "比赛已成功删除" : "未找到指定比赛";
    } else {
      // 批量删除
      const idArray = ids.split(",");
      deletedMatches = await Match.deleteMany({ _id: { $in: idArray } });
      message = `成功删除 ${deletedMatches.deletedCount} 场比赛`;
    }

    if (
      !deletedMatches ||
      (Array.isArray(deletedMatches) && deletedMatches.length === 0)
    ) {
      return NextResponse.json(
        { success: false, error: "未找到指定比赛" },
        { status: 404 }
      );
    }

    const response = NextResponse.json(
      { success: true, message: message },
      { status: 200 }
    );

    // Set CORS headers
    return setCORSHeaders(response);
  } catch (error) {
    console.error("删除比赛数据时出错:", error);
    return NextResponse.json(
      { success: false, error: "删除比赛失败" },
      { status: 500 }
    );
  }
});

export async function OPTIONS() {
  const response = new NextResponse(null, { status: 204 });
  return setCORSHeaders(response);
}

function formatMatches(matches) {
  // 使用 Set 去除重复的日期
  const uniqueDates = Array.from(
    new Set(
      matches.map((match) => new Date(match.date).toISOString().split("T")[0])
    )
  );

  // 格式化唯一日期
  return uniqueDates.map((dateString, index) => {
    const date = new Date(dateString);
    const year = date.getFullYear();
    const month = String(date.getMonth() + 1).padStart(2, "0");
    const day = String(date.getDate()).padStart(2, "0");

    const weekdays = [
      "星期日",
      "星期一",
      "星期二",
      "星期三",
      "星期四",
      "星期五",
      "星期六",
    ];

    // 获取星期几
    const weekday = weekdays[date.getDay()];

    return {
      id: index + 1,
      title: weekday,
      date: `${year}-${month}-${day}`,
    };
  });
}