// =====================================================
// 團隊詳細操作 API
// =====================================================

import { NextRequest, NextResponse } from 'next/server';
import { TeamService } from '@/lib/services/database-service';

// 獲取單一團隊
export async function GET(request: NextRequest, { params }: { params: { id: string } }) {
  try {
    const { id } = await params;
    
    const team = await TeamService.getTeamById(id);
    
    if (!team) {
      return NextResponse.json({
        success: false,
        message: '團隊不存在',
        error: '找不到指定的團隊'
      }, { status: 404 });
    }

    // 獲取團隊成員
    const members = await TeamService.getTeamMembers(id);
    team.members = members;

    // 獲取團隊應用
    const apps = await TeamService.getTeamApps(id);
    team.apps = apps;

    return NextResponse.json({
      success: true,
      message: '團隊獲取成功',
      data: team
    });

  } catch (error) {
    console.error('獲取團隊失敗:', error);
    return NextResponse.json({
      success: false,
      message: '獲取團隊失敗',
      error: error instanceof Error ? error.message : '未知錯誤'
    }, { status: 500 });
  }
}

// 更新團隊
export async function PUT(request: NextRequest, { params }: { params: { id: string } }) {
  try {
    const { id } = await params;
    const body = await request.json();
    
    // 檢查團隊是否存在
    const existingTeam = await TeamService.getTeamById(id);
    if (!existingTeam) {
      return NextResponse.json({
        success: false,
        message: '團隊不存在',
        error: '找不到指定的團隊'
      }, { status: 404 });
    }

    // 如果更新名稱，檢查是否重複
    if (body.name && body.name !== existingTeam.name) {
      const nameExists = await TeamService.getTeamByName(body.name);
      if (nameExists) {
        return NextResponse.json({
          success: false,
          message: '團隊名稱已存在',
          error: '團隊名稱重複'
        }, { status: 409 });
      }
    }

    // 更新團隊
    const success = await TeamService.updateTeam(id, body);
    
    if (!success) {
      return NextResponse.json({
        success: false,
        message: '更新團隊失敗',
        error: '無法更新團隊'
      }, { status: 500 });
    }

    // 獲取更新後的團隊信息
    const updatedTeam = await TeamService.getTeamById(id);
    
    return NextResponse.json({
      success: true,
      message: '團隊更新成功',
      data: updatedTeam
    });

  } catch (error) {
    console.error('更新團隊失敗:', error);
    return NextResponse.json({
      success: false,
      message: '更新團隊失敗',
      error: error instanceof Error ? error.message : '未知錯誤'
    }, { status: 500 });
  }
}

// 刪除團隊
export async function DELETE(request: NextRequest, { params }: { params: { id: string } }) {
  try {
    const { id } = await params;
    const url = new URL(request.url);
    const hardDelete = url.searchParams.get('hard') === 'true';
    
    // 檢查團隊是否存在
    const existingTeam = await TeamService.getTeamById(id);
    if (!existingTeam) {
      return NextResponse.json({
        success: false,
        message: '團隊不存在',
        error: '找不到指定的團隊'
      }, { status: 404 });
    }

    let success: boolean;
    
    if (hardDelete) {
      // 硬刪除：從資料庫中完全移除
      success = await TeamService.hardDeleteTeam(id);
    } else {
      // 軟刪除：將 is_active 設為 false
      success = await TeamService.deleteTeam(id);
    }
    
    if (!success) {
      return NextResponse.json({
        success: false,
        message: '刪除團隊失敗',
        error: '無法刪除團隊'
      }, { status: 500 });
    }

    return NextResponse.json({
      success: true,
      message: hardDelete ? '團隊已永久刪除' : '團隊已停用',
      data: { hardDelete }
    });

  } catch (error) {
    console.error('刪除團隊失敗:', error);
    return NextResponse.json({
      success: false,
      message: '刪除團隊失敗',
      error: error instanceof Error ? error.message : '未知錯誤'
    }, { status: 500 });
  }
}