<?php

namespace App\Module\Transfer\Services;

use App\Module\Transfer\Models\TransferApp;
use App\Module\Transfer\Models\TransferOrder;
use App\Module\Transfer\Models\TransferFeeDailyStats;
use App\Module\Transfer\Enums\TransferStatus;
use App\Module\Transfer\Enums\TransferType;
use App\Module\Transfer\Logics\FeeStatisticsLogic;
use Illuminate\Support\Facades\Log;
use Carbon\Carbon;

/**
 * 手续费统计服务类
 *
 * 负责处理Transfer模块的手续费统计功能
 */
class FeeStatisticsService
{
    /**
     * 执行每日手续费统计
     *
     * @param string|null $date 统计日期，默认为昨天
     * @return array 统计结果
     */
    public static function runDailyStatistics(?string $date = null): array
    {
        try {
            $date = $date ?: Carbon::yesterday()->format('Y-m-d');

            Log::info("开始执行手续费每日统计", ['date' => $date]);

            $result = FeeStatisticsLogic::runDailyStatistics($date);

            Log::info("手续费每日统计完成", [
                'date' => $date,
                'processed_apps' => count($result['apps']),
                'total_orders' => $result['summary']['total_orders'],
                'total_fee' => $result['summary']['total_fee']
            ]);

            return $result;

        } catch (\Exception $e) {
            Log::error("手续费每日统计失败", [
                'date' => $date ?? 'unknown',
                'error' => $e->getMessage(),
                'trace' => $e->getTraceAsString()
            ]);

            throw $e;
        }
    }

    /**
     * 获取指定日期范围的统计数据
     *
     * @param string $startDate 开始日期
     * @param string $endDate 结束日期
     * @param int $appId 应用ID（0表示所有应用）
     * @return array
     */
    public static function getStatsByDateRange(string $startDate, string $endDate,$appId): array
    {
        try {
            return FeeStatisticsLogic::getStatsByDateRange($startDate, $endDate, $appId);
        } catch (\Exception $e) {
            Log::error("获取手续费统计数据失败", [
                'start_date' => $startDate,
                'end_date' => $endDate,
                'app_id' => $appId,
                'error' => $e->getMessage()
            ]);

            return [
                'error' => $e->getMessage(),
                'data' => [],
                'summary' => [
                    'total_days' => 0,
                    'total_orders' => 0,
                    'total_amount' => '0.0000000000',
                    'total_fee' => '0.0000000000',
                    'avg_fee_rate' => '0.00000'
                ]
            ];
        }
    }

    /**
     * 获取月度统计数据
     *
     * @param int $year 年份
     * @param int $month 月份
     * @param int $appId 应用ID（0表示所有应用）
     * @return array
     */
    public static function getMonthlyStats(int $year, int $month, int $appId = 0): array
    {
        try {
            return FeeStatisticsLogic::getMonthlyStats($year, $month, $appId);
        } catch (\Exception $e) {
            Log::error("获取月度手续费统计失败", [
                'year' => $year,
                'month' => $month,
                'app_id' => $appId,
                'error' => $e->getMessage()
            ]);

            return [
                'error' => $e->getMessage(),
                'year' => $year,
                'month' => $month,
                'stat_days' => 0,
                'total_orders' => 0,
                'total_amount' => '0.0000000000',
                'total_fee' => '0.0000000000',
                'avg_fee_rate' => '0.00000'
            ];
        }
    }

    /**
     * 获取应用汇总统计
     *
     * @param int $appId 应用ID（0表示所有应用）
     * @return array
     */
    public static function getAppSummary(int $appId = 0): array
    {
        try {
            return FeeStatisticsLogic::getAppSummary($appId);
        } catch (\Exception $e) {
            Log::error("获取应用汇总统计失败", [
                'app_id' => $appId,
                'error' => $e->getMessage()
            ]);

            return [
                'error' => $e->getMessage(),
                'data' => []
            ];
        }
    }

    /**
     * 获取最近N天的统计趋势
     *
     * @param int $days 天数
     * @param int $appId 应用ID（0表示所有应用）
     * @return array
     */
    public static function getRecentTrend(int $days = 7, int $appId = 0): array
    {
        try {
            $endDate = Carbon::yesterday()->format('Y-m-d');
            $startDate = Carbon::yesterday()->subDays($days - 1)->format('Y-m-d');

            return self::getStatsByDateRange($startDate, $endDate, $appId);

        } catch (\Exception $e) {
            Log::error("获取手续费趋势数据失败", [
                'days' => $days,
                'app_id' => $appId,
                'error' => $e->getMessage()
            ]);

            return [
                'error' => $e->getMessage(),
                'data' => [],
                'summary' => []
            ];
        }
    }

    /**
     * 获取手续费收入排行榜
     *
     * @param string $startDate 开始日期
     * @param string $endDate 结束日期
     * @param int $limit 限制数量
     * @return array
     */
    public static function getFeeRanking(string $startDate, string $endDate, int $limit = 10): array
    {
        try {
            return FeeStatisticsLogic::getFeeRanking($startDate, $endDate, $limit);
        } catch (\Exception $e) {
            Log::error("获取手续费排行榜失败", [
                'start_date' => $startDate,
                'end_date' => $endDate,
                'limit' => $limit,
                'error' => $e->getMessage()
            ]);

            return [
                'error' => $e->getMessage(),
                'data' => []
            ];
        }
    }

    /**
     * 重新统计指定日期的数据
     *
     * @param string $date 统计日期
     * @param int $appId 应用ID（0表示所有应用）
     * @return array
     */
    public static function restatistics(string $date, int $appId = 0): array
    {
        try {
            Log::info("开始重新统计手续费数据", ['date' => $date, 'app_id' => $appId]);

            $result = FeeStatisticsLogic::restatistics($date, $appId);

            Log::info("重新统计手续费数据完成", [
                'date' => $date,
                'app_id' => $appId,
                'result' => $result
            ]);

            return $result;

        } catch (\Exception $e) {
            Log::error("重新统计手续费数据失败", [
                'date' => $date,
                'app_id' => $appId,
                'error' => $e->getMessage()
            ]);

            throw $e;
        }
    }

    /**
     * 获取统计配置信息
     *
     * @return array
     */
    public static function getStatisticsConfig(): array
    {
        return [
            'schedule_time' => '22:00',
            'timezone' => config('app.timezone', 'Asia/Shanghai'),
            'retention_days' => 365, // 保留365天的统计数据
            'batch_size' => 1000, // 批量处理大小
            'enabled_apps' => TransferApp::where('is_enabled', true)->count(),
            'total_apps' => TransferApp::count(),
        ];
    }

    /**
     * 清理过期的统计数据
     *
     * @param int $retentionDays 保留天数
     * @return int 清理的记录数
     */
    public static function cleanupExpiredStats(int $retentionDays = 365): int
    {
        try {
            $cutoffDate = Carbon::now()->subDays($retentionDays)->format('Y-m-d');

            $deletedCount = TransferFeeDailyStats::where('stat_date', '<', $cutoffDate)->delete();

            Log::info("清理过期手续费统计数据", [
                'cutoff_date' => $cutoffDate,
                'deleted_count' => $deletedCount
            ]);

            return $deletedCount;

        } catch (\Exception $e) {
            Log::error("清理过期手续费统计数据失败", [
                'retention_days' => $retentionDays,
                'error' => $e->getMessage()
            ]);

            throw $e;
        }
    }

    /**
     * 验证统计数据的完整性
     *
     * @param string $date 检查日期
     * @return array
     */
    public static function validateStatistics(string $date): array
    {
        try {
            return FeeStatisticsLogic::validateStatistics($date);
        } catch (\Exception $e) {
            Log::error("验证统计数据完整性失败", [
                'date' => $date,
                'error' => $e->getMessage()
            ]);

            return [
                'valid' => false,
                'error' => $e->getMessage(),
                'details' => []
            ];
        }
    }
}