<?php

namespace App\Http\Controllers;

use App\Services\JiraService;
use Carbon\Carbon;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;

class JiraController extends Controller
{
    private const WEEKLY_REPORT_PERIODS = ['this_week', 'last_week'];

    private JiraService $jiraService;

    public function __construct(JiraService $jiraService)
    {
        $this->jiraService = $jiraService;
    }

    /**
     * 生成周报
     */
    public function generateWeeklyReport(Request $request): JsonResponse
    {
        try {
            $username = $request->input('username') ?: config('jira.default_user');
            $period = $request->input('period', 'this_week');

            if (! $username) {
                return response()->json([
                    'success' => false,
                    'message' => '请提供用户名',
                ], 400);
            }

            if (! in_array($period, self::WEEKLY_REPORT_PERIODS, true)) {
                return response()->json([
                    'success' => false,
                    'message' => '无效的周报周期',
                ], 400);
            }

            $report = $this->jiraService->generateWeeklyReport($username, $period);

            return response()->json([
                'success' => true,
                'data' => [
                    'report' => $report,
                    'username' => $username,
                    'period' => $period,
                    'generated_at' => Carbon::now()->format('Y-m-d H:i:s'),
                ],
            ]);
        } catch (\Exception $e) {
            return response()->json([
                'success' => false,
                'message' => '生成周报失败: '.$e->getMessage(),
            ], 500);
        }
    }

    /**
     * 获取工时记录
     */
    public function getWorkLogs(Request $request): JsonResponse
    {
        $request->validate([
            'username' => 'required|string',
            'start_date' => 'required|date',
            'end_date' => 'required|date|after_or_equal:start_date',
        ]);

        try {
            $username = $request->input('username');
            $startDate = Carbon::parse($request->input('start_date'))->startOfDay();
            $endDate = Carbon::parse($request->input('end_date'))->endOfDay();

            $workLogs = $this->jiraService->getWorkLogs($username, $startDate, $endDate);

            return response()->json([
                'success' => true,
                'data' => [
                    'work_logs' => $workLogs->values()->toArray(),
                    'total_hours' => $workLogs->sum('hours'),
                    'total_records' => $workLogs->count(),
                    'date_range' => [
                        'start' => $startDate->format('Y-m-d'),
                        'end' => $endDate->format('Y-m-d'),
                    ],
                ],
            ]);
        } catch (\Exception $e) {
            return response()->json([
                'success' => false,
                'message' => '获取工时记录失败: '.$e->getMessage(),
            ], 500);
        }
    }

    /**
     * 获取JIRA配置信息
     */
    public function getConfig(): JsonResponse
    {
        return response()->json([
            'success' => true,
            'data' => [
                'default_user' => config('jira.default_user', ''),
                'host' => config('jira.host', ''),
            ],
        ]);
    }

    /**
     * 下载周报文件
     */
    public function downloadWeeklyReport(Request $request)
    {
        try {
            $username = $request->input('username') ?: config('jira.default_user');
            $period = $request->input('period', 'this_week');

            if (! $username) {
                return response()->json([
                    'success' => false,
                    'message' => '请提供用户名',
                ], 400);
            }

            if (! in_array($period, self::WEEKLY_REPORT_PERIODS, true)) {
                return response()->json([
                    'success' => false,
                    'message' => '无效的周报周期',
                ], 400);
            }

            $report = $this->jiraService->generateWeeklyReport($username, $period);
            $filename = sprintf('weekly_report_%s_%s_%s.md', $username, $period, Carbon::now()->format('Y-m-d'));

            return response($report)
                ->header('Content-Type', 'text/markdown')
                ->header('Content-Disposition', 'attachment; filename="'.$filename.'"');
        } catch (\Exception $e) {
            return response()->json([
                'success' => false,
                'message' => '下载周报失败: '.$e->getMessage(),
            ], 500);
        }
    }
}