<?php

namespace App\Services\Client\Traits;

use App\Enums\OrderStatus;
use App\Enums\TechnicianAuthStatus;
use App\Enums\TechnicianStatus;
use App\Models\CoachSchedule;
use App\Models\CoachUser;
use App\Models\Order;
use Carbon\Carbon;

trait ValidatesServiceTime
{
    private function validateServiceTimeParams(int $coachId, string $serviceTime): void
    {
        // 验证技师状态
        $coach = CoachUser::where('id', $coachId)
            ->where('state', TechnicianStatus::ACTIVE->value)
            ->where('auth_state', TechnicianAuthStatus::PASSED->value)
            ->firstOrFail();

        // 验证时间格式
        $serviceDateTime = Carbon::parse($serviceTime);
        abort_if(
            $serviceDateTime->isPast(),
            400,
            '服务时间不能早于当前时间'
        );

        // 验证预约提前时间（至少提前2小时）
        $minAdvanceHours = config('business.min_advance_hours', 2);
        abort_if(
            $serviceDateTime->diffInHours(now()) < $minAdvanceHours,
            400,
            "需要至少提前{$minAdvanceHours}小时预约"
        );

        // 验证预约时间范围（最多提前7天）
        $maxAdvanceDays = config('business.max_advance_days', 7);
        abort_if(
            $serviceDateTime->diffInDays(now()) > $maxAdvanceDays,
            400,
            "最多只能提前{$maxAdvanceDays}天预约"
        );
    }

    private function getCoachWorkSchedule(int $coachId): array
    {
        $schedule = CoachSchedule::where('coach_id', $coachId)
            ->where('state', 1)
            ->first();

        if (! $schedule) {
            return [
                'work_days' => range(1, 7),
                'work_hours' => [
                    'start' => '09:00',
                    'end' => '21:00',
                ],
                'rest_dates' => [],
            ];
        }

        return [
            'work_days' => json_decode($schedule->work_days, true),
            'work_hours' => [
                'start' => $schedule->work_start_time,
                'end' => $schedule->work_end_time,
            ],
            'rest_dates' => json_decode($schedule->rest_dates, true) ?? [],
        ];
    }

    private function validateWorkingHours(string $serviceTime, array $workSchedule): void
    {
        $serviceDateTime = Carbon::parse($serviceTime);

        // 检查工作日
        $dayOfWeek = $serviceDateTime->dayOfWeek;
        abort_if(
            ! in_array($dayOfWeek, $workSchedule['work_days']),
            400,
            '该时间不在技师工作日内'
        );

        // 检查特殊休息日
        $dateStr = $serviceDateTime->format('Y-m-d');
        abort_if(
            in_array($dateStr, $workSchedule['rest_dates']),
            400,
            '技师该日期休息'
        );

        // 检查工作时间
        $timeStr = $serviceDateTime->format('H:i');
        $startTime = Carbon::parse($workSchedule['work_hours']['start']);
        $endTime = Carbon::parse($workSchedule['work_hours']['end']);

        abort_if(
            $timeStr < $startTime->format('H:i') || $timeStr > $endTime->format('H:i'),
            400,
            sprintf(
                '服务时间需在%s-%s之间',
                $startTime->format('H:i'),
                $endTime->format('H:i')
            )
        );
    }

    private function checkTimeConflicts(int $coachId, string $serviceTime): void
    {
        $serviceDateTime = Carbon::parse($serviceTime);

        // 获取服务时长（默认2小时）
        $serviceDuration = config('business.default_service_duration', 120);

        // 计算服务结束时间
        $serviceEndTime = $serviceDateTime->copy()->addMinutes($serviceDuration);

        // 检查是否有其他订单在这个时间段
        $conflictOrder = Order::where('coach_id', $coachId)
            ->whereIn('state', [
                OrderStatus::PAID->value,
                OrderStatus::ACCEPTED->value,
                OrderStatus::SERVING->value,
            ])
            ->where(function ($query) use ($serviceDateTime, $serviceEndTime) {
                $query->where(function ($q) use ($serviceDateTime) {
                    // 新订单开始时间在其他订单的服务时间段内
                    $q->where('service_time', '<=', $serviceDateTime)
                        ->where('service_end_time', '>', $serviceDateTime);
                })->orWhere(function ($q) use ($serviceEndTime) {
                    // 新订单结束时间在其他订单的服务时间段内
                    $q->where('service_time', '<', $serviceEndTime)
                        ->where('service_end_time', '>=', $serviceEndTime);
                });
            })
            ->first();

        abort_if(
            $conflictOrder,
            400,
            '该时间段技师已有其他订单'
        );
    }
}