<?php

namespace App\Module\Farm\Services;

use App\Module\Farm\Enums\DISASTER_TYPE;
use App\Module\Farm\Logics\DisasterLogic;
use Illuminate\Support\Facades\Log;

class DisasterService
{

    /**
     * 获取所有灾害 减产比例
     *
     * @return float[]
     */
    public static function getAllDisasters()
    {
        $disasterTypes = [
            DISASTER_TYPE::DROUGHT->valueInt() => 0.05, // 干旱
            DISASTER_TYPE::PEST->valueInt()    => 0.05,    // 虫害
            DISASTER_TYPE::WEED->valueInt()    => 0.05,    // 杂草
        ];

        return $disasterTypes;
    }

    /**
     * 获取灾害 产生比例
     *
     * @return float[]
     */
    public static function getRate()
    {
        $disasterTypes = [
            DISASTER_TYPE::DROUGHT->valueInt() => 0.9, // 干旱
            DISASTER_TYPE::PEST->valueInt()    => 0.9,    // 虫害
            DISASTER_TYPE::WEED->valueInt()    => 0.9,    // 杂草
        ];

        return $disasterTypes;
    }

    /**
     * 获取灾害类型对应的键名
     *
     * @param int $disasterType
     * @return string
     */
    public static function getDisasterKey(int $disasterType): string
    {
        $keys = [
            DISASTER_TYPE::DROUGHT->valueInt() => 'drought',
            DISASTER_TYPE::PEST->valueInt() => 'pest',
            DISASTER_TYPE::WEED->valueInt() => 'weed',
        ];

        return $keys[$disasterType] ?? '';
    }

    /**
     * 灾害检查间隔时间（分钟）
     *
     * @return int
     */
    public static function getCheckInterval(): int
    {
        return 5; // 每5分钟检查一次
    }

    /**
     * 批量生成灾害
     *
     * @param int|null $checkIntervalMinutes 检查间隔（分钟）
     * @return array 生成结果统计
     */
    public static function generateDisasterBatchs(?int $checkIntervalMinutes = null): array
    {
        try {
            $disasterLogic = new DisasterLogic();

            // 获取需要检查的作物列表
            $crops = $disasterLogic->getCropsNeedingDisasterCheck($checkIntervalMinutes);

            $totalCount = $crops->count();
            $generatedCount = 0;
            $skippedCount = 0;

            // 为每个作物单独处理，使用独立事务
            foreach ($crops as $crop) {
                try {
                    // 为每个作物的灾害生成使用独立事务
                    $result = \Illuminate\Support\Facades\DB::transaction(function () use ($disasterLogic, $crop) {
                        return $disasterLogic->generateDisasters($crop);
                    });

                    if ($result === 'generated') {
                        $generatedCount++;
                    } elseif ($result === 'skipped') {
                        $skippedCount++;
                    }
                } catch (\Exception $e) {
                    Log::error('单个作物灾害生成事务失败', [
                        'crop_id' => $crop->id,
                        'user_id' => $crop->user_id,
                        'error' => $e->getMessage()
                    ]);
                    $skippedCount++;
                }
            }

            return [
                'total' => $totalCount,
                'generated' => $generatedCount,
                'skipped' => $skippedCount
            ];
        } catch (\Exception $e) {
            Log::error('批量生成灾害失败', [
                'check_interval_minutes' => $checkIntervalMinutes,
                'error' => $e->getMessage(),
                'trace' => $e->getTraceAsString()
            ]);

            // 重新抛出异常，不隐藏错误
            throw $e;
        }
    }

}