<?php

namespace App\Module\Farm\Logics;

use App\Module\Farm\Models\FarmSeed;
use App\Module\Farm\Models\FarmSeedOutput;
use Illuminate\Support\Collection;
use Illuminate\Support\Facades\Cache;
use Illuminate\Support\Facades\Log;

/**
 * 种子管理逻辑
 */
class SeedLogic
{
    /**
     * 缓存键前缀
     *
     * @var string
     */
    private $cachePrefix = 'farm:seeds:';
    
    /**
     * 缓存过期时间（秒）
     *
     * @var int
     */
    private $cacheExpiration = 86400; // 24小时
    
    /**
     * 获取所有种子
     *
     * @return Collection
     */
    public function getAllSeeds(): Collection
    {
        try {
            // 尝试从缓存获取
            $cacheKey = $this->cachePrefix . 'all';
            $cachedSeeds = Cache::get($cacheKey);
            
            if ($cachedSeeds) {
                return $cachedSeeds;
            }
            
            // 从数据库获取
            $seeds = FarmSeed::with('outputs')->get();
            
            // 缓存结果
            Cache::put($cacheKey, $seeds, $this->cacheExpiration);
            
            return $seeds;
        } catch (\Exception $e) {
            Log::error('获取所有种子失败', [
                'error' => $e->getMessage(),
                'trace' => $e->getTraceAsString()
            ]);
            
            return collect();
        }
    }
    
    /**
     * 获取指定类型的种子
     *
     * @param int $type
     * @return Collection
     */
    public function getSeedsByType(int $type): Collection
    {
        try {
            // 尝试从缓存获取
            $cacheKey = $this->cachePrefix . 'type:' . $type;
            $cachedSeeds = Cache::get($cacheKey);
            
            if ($cachedSeeds) {
                return $cachedSeeds;
            }
            
            // 从数据库获取
            $seeds = FarmSeed::where('type', $type)
                ->with('outputs')
                ->get();
            
            // 缓存结果
            Cache::put($cacheKey, $seeds, $this->cacheExpiration);
            
            return $seeds;
        } catch (\Exception $e) {
            Log::error('获取指定类型种子失败', [
                'type' => $type,
                'error' => $e->getMessage(),
                'trace' => $e->getTraceAsString()
            ]);
            
            return collect();
        }
    }
    
    /**
     * 获取种子详情
     *
     * @param int $seedId
     * @return FarmSeed|null
     */
    public function getSeedDetail(int $seedId): ?FarmSeed
    {
        try {
            // 尝试从缓存获取
            $cacheKey = $this->cachePrefix . 'id:' . $seedId;
            $cachedSeed = Cache::get($cacheKey);
            
            if ($cachedSeed) {
                return $cachedSeed;
            }
            
            // 从数据库获取
            $seed = FarmSeed::with('outputs')->find($seedId);
            
            if (!$seed) {
                return null;
            }
            
            // 缓存结果
            Cache::put($cacheKey, $seed, $this->cacheExpiration);
            
            return $seed;
        } catch (\Exception $e) {
            Log::error('获取种子详情失败', [
                'seed_id' => $seedId,
                'error' => $e->getMessage(),
                'trace' => $e->getTraceAsString()
            ]);
            
            return null;
        }
    }
    
    /**
     * 获取种子的产出配置
     *
     * @param int $seedId
     * @return Collection
     */
    public function getSeedOutputs(int $seedId): Collection
    {
        try {
            // 尝试从缓存获取
            $cacheKey = $this->cachePrefix . 'outputs:' . $seedId;
            $cachedOutputs = Cache::get($cacheKey);
            
            if ($cachedOutputs) {
                return $cachedOutputs;
            }
            
            // 从数据库获取
            $outputs = FarmSeedOutput::where('seed_id', $seedId)
                ->orderByDesc('probability')
                ->get();
            
            // 缓存结果
            Cache::put($cacheKey, $outputs, $this->cacheExpiration);
            
            return $outputs;
        } catch (\Exception $e) {
            Log::error('获取种子产出配置失败', [
                'seed_id' => $seedId,
                'error' => $e->getMessage(),
                'trace' => $e->getTraceAsString()
            ]);
            
            return collect();
        }
    }
    
    /**
     * 根据物品ID获取种子
     *
     * @param int $itemId
     * @return FarmSeed|null
     */
    public function getSeedByItemId(int $itemId): ?FarmSeed
    {
        try {
            // 尝试从缓存获取
            $cacheKey = $this->cachePrefix . 'item:' . $itemId;
            $cachedSeed = Cache::get($cacheKey);
            
            if ($cachedSeed) {
                return $cachedSeed;
            }
            
            // 从数据库获取
            $seed = FarmSeed::where('item_id', $itemId)->first();
            
            if (!$seed) {
                return null;
            }
            
            // 缓存结果
            Cache::put($cacheKey, $seed, $this->cacheExpiration);
            
            return $seed;
        } catch (\Exception $e) {
            Log::error('根据物品ID获取种子失败', [
                'item_id' => $itemId,
                'error' => $e->getMessage(),
                'trace' => $e->getTraceAsString()
            ]);
            
            return null;
        }
    }
    
    /**
     * 清除种子缓存
     *
     * @param int|null $seedId
     * @return bool
     */
    public function clearSeedCache(?int $seedId = null): bool
    {
        try {
            if ($seedId) {
                // 清除指定种子的缓存
                Cache::forget($this->cachePrefix . 'id:' . $seedId);
                Cache::forget($this->cachePrefix . 'outputs:' . $seedId);
                
                // 获取种子信息
                $seed = FarmSeed::find($seedId);
                
                if ($seed) {
                    // 清除种子类型缓存
                    Cache::forget($this->cachePrefix . 'type:' . $seed->type);
                    
                    // 清除物品ID缓存
                    Cache::forget($this->cachePrefix . 'item:' . $seed->item_id);
                }
            } else {
                // 清除所有种子缓存
                Cache::forget($this->cachePrefix . 'all');
                
                // 清除所有类型缓存
                for ($type = 1; $type <= 3; $type++) {
                    Cache::forget($this->cachePrefix . 'type:' . $type);
                }
            }
            
            return true;
        } catch (\Exception $e) {
            Log::error('清除种子缓存失败', [
                'seed_id' => $seedId,
                'error' => $e->getMessage(),
                'trace' => $e->getTraceAsString()
            ]);
            
            return false;
        }
    }
}