<?php

namespace App\Module\Game\Services;

use App\Module\Fund\Logic\User as FundLogic;
use App\Module\Game\Enums\CONDITION_OPERATOR;
use App\Module\Game\Enums\CONDITION_TYPE;
use App\Module\Game\Models\GameConditionGroup;
use App\Module\Game\Models\GameConditionItem;
use App\Module\GameItems\Services\ItemService;
use App\Module\Pet\Services\PetService;
use Illuminate\Support\Facades\Log;

/**
 * 条件服务类
 * 
 * 提供条件组相关的服务，包括检查用户是否满足条件等功能
 */
class ConditionService
{
    /**
     * 检查用户是否满足条件组的条件
     * 
     * @param int $userId 用户ID
     * @param string|int $conditionGroupCode 条件组编码或ID
     * @return array 检查结果，包含success字段表示是否满足条件，message字段表示错误信息
     */
    public static function checkCondition(int $userId, $conditionGroupCode): array
    {
        try {
            // 获取条件组
            $conditionGroup = is_numeric($conditionGroupCode) 
                ? GameConditionGroup::find($conditionGroupCode)
                : GameConditionGroup::where('code', $conditionGroupCode)->first();
            
            if (!$conditionGroup) {
                return [
                    'success' => false,
                    'message' => "条件组不存在: {$conditionGroupCode}"
                ];
            }
            
            // 获取条件组中的所有条件项
            $conditionItems = $conditionGroup->conditionItems;
            
            if ($conditionItems->isEmpty()) {
                return [
                    'success' => true,
                    'message' => '条件组中没有条件项'
                ];
            }
            
            // 根据逻辑类型检查条件
            $logicType = $conditionGroup->logic_type;
            $failedConditions = [];
            
            foreach ($conditionItems as $item) {
                $checkResult = self::checkConditionItem($userId, $item);
                
                if ($logicType == GameConditionGroup::LOGIC_TYPE_ALL && !$checkResult['success']) {
                    // 全部满足模式下，有一个不满足就返回失败
                    return [
                        'success' => false,
                        'message' => $checkResult['message'],
                        'condition_item' => $item->id,
                        'details' => $checkResult
                    ];
                } elseif ($logicType == GameConditionGroup::LOGIC_TYPE_ANY && $checkResult['success']) {
                    // 任一满足模式下，有一个满足就返回成功
                    return [
                        'success' => true,
                        'message' => '满足条件',
                        'condition_item' => $item->id,
                        'details' => $checkResult
                    ];
                }
                
                if (!$checkResult['success']) {
                    $failedConditions[] = [
                        'condition_item' => $item->id,
                        'details' => $checkResult
                    ];
                }
            }
            
            // 处理最终结果
            if ($logicType == GameConditionGroup::LOGIC_TYPE_ALL) {
                // 全部满足模式下，走到这里说明全部满足
                return [
                    'success' => true,
                    'message' => '满足所有条件'
                ];
            } else {
                // 任一满足模式下，走到这里说明没有一个满足
                return [
                    'success' => false,
                    'message' => '不满足任何条件',
                    'failed_conditions' => $failedConditions
                ];
            }
        } catch (\Exception $e) {
            Log::error('检查条件失败', [
                'user_id' => $userId,
                'condition_group' => $conditionGroupCode,
                'error' => $e->getMessage()
            ]);
            
            return [
                'success' => false,
                'message' => '检查条件时发生错误: ' . $e->getMessage()
            ];
        }
    }
    
    /**
     * 检查单个条件项
     * 
     * @param int $userId 用户ID
     * @param GameConditionItem $conditionItem 条件项
     * @return array 检查结果
     */
    protected static function checkConditionItem(int $userId, GameConditionItem $conditionItem): array
    {
        switch ($conditionItem->condition_type) {
            case CONDITION_TYPE::LAND_LEVEL->value:
                return self::checkLandLevelCondition($userId, $conditionItem);
                
            case CONDITION_TYPE::HOUSE_LEVEL->value:
                return self::checkHouseLevelCondition($userId, $conditionItem);
                
            case CONDITION_TYPE::PET_LEVEL->value:
                return self::checkPetLevelCondition($userId, $conditionItem);
                
            case CONDITION_TYPE::ITEM_COUNT->value:
                return self::checkItemCountCondition($userId, $conditionItem);
                
            case CONDITION_TYPE::CURRENCY_COUNT->value:
                return self::checkCurrencyCountCondition($userId, $conditionItem);
                
            default:
                return [
                    'success' => false,
                    'message' => "不支持的条件类型: {$conditionItem->condition_type}"
                ];
        }
    }
    
    /**
     * 检查土地等级条件
     * 
     * @param int $userId 用户ID
     * @param GameConditionItem $conditionItem 条件项
     * @return array 检查结果
     */
    protected static function checkLandLevelCondition(int $userId, GameConditionItem $conditionItem): array
    {
        try {
            // 获取用户指定类型的土地
            $landType = $conditionItem->target_id;
            $lands = \App\Module\Farm\Services\LandService::getUserLands($userId);
            
            // 计算指定类型的土地数量
            $count = 0;
            foreach ($lands as $land) {
                if ($land->landType == $landType) {
                    $count++;
                }
            }
            
            // 执行比较
            $result = CONDITION_OPERATOR::compare($count, $conditionItem->value, $conditionItem->operator);
            
            if ($result) {
                return [
                    'success' => true,
                    'message' => "土地等级条件满足",
                    'actual' => $count,
                    'expected' => $conditionItem->value,
                    'operator' => $conditionItem->getOperatorSymbol()
                ];
            } else {
                return [
                    'success' => false,
                    'message' => "土地等级条件不满足，需要 {$conditionItem->getOperatorSymbol()} {$conditionItem->value}，实际 {$count}",
                    'actual' => $count,
                    'expected' => $conditionItem->value,
                    'operator' => $conditionItem->getOperatorSymbol()
                ];
            }
        } catch (\Exception $e) {
            Log::error('检查土地等级条件失败', [
                'user_id' => $userId,
                'condition_item' => $conditionItem->id,
                'error' => $e->getMessage()
            ]);
            
            return [
                'success' => false,
                'message' => '检查土地等级条件时发生错误: ' . $e->getMessage()
            ];
        }
    }
    
    /**
     * 检查房屋等级条件
     * 
     * @param int $userId 用户ID
     * @param GameConditionItem $conditionItem 条件项
     * @return array 检查结果
     */
    protected static function checkHouseLevelCondition(int $userId, GameConditionItem $conditionItem): array
    {
        try {
            // 获取用户房屋等级
            $farmUser = \App\Module\Farm\Models\FarmUser::where('user_id', $userId)->first();
            
            if (!$farmUser) {
                return [
                    'success' => false,
                    'message' => "用户没有房屋"
                ];
            }
            
            $houseLevel = $farmUser->house_level;
            
            // 执行比较
            $result = CONDITION_OPERATOR::compare($houseLevel, $conditionItem->value, $conditionItem->operator);
            
            if ($result) {
                return [
                    'success' => true,
                    'message' => "房屋等级条件满足",
                    'actual' => $houseLevel,
                    'expected' => $conditionItem->value,
                    'operator' => $conditionItem->getOperatorSymbol()
                ];
            } else {
                return [
                    'success' => false,
                    'message' => "房屋等级条件不满足，需要 {$conditionItem->getOperatorSymbol()} {$conditionItem->value}，实际 {$houseLevel}",
                    'actual' => $houseLevel,
                    'expected' => $conditionItem->value,
                    'operator' => $conditionItem->getOperatorSymbol()
                ];
            }
        } catch (\Exception $e) {
            Log::error('检查房屋等级条件失败', [
                'user_id' => $userId,
                'condition_item' => $conditionItem->id,
                'error' => $e->getMessage()
            ]);
            
            return [
                'success' => false,
                'message' => '检查房屋等级条件时发生错误: ' . $e->getMessage()
            ];
        }
    }
    
    /**
     * 检查宠物等级条件
     * 
     * @param int $userId 用户ID
     * @param GameConditionItem $conditionItem 条件项
     * @return array 检查结果
     */
    protected static function checkPetLevelCondition(int $userId, GameConditionItem $conditionItem): array
    {
        try {
            // 获取用户宠物
            $petId = $conditionItem->target_id;
            $userPet = PetService::getUserPet($userId, $petId);
            
            if (!$userPet) {
                return [
                    'success' => false,
                    'message' => "用户没有该宠物"
                ];
            }
            
            $petLevel = $userPet->level;
            
            // 执行比较
            $result = CONDITION_OPERATOR::compare($petLevel, $conditionItem->value, $conditionItem->operator);
            
            if ($result) {
                return [
                    'success' => true,
                    'message' => "宠物等级条件满足",
                    'actual' => $petLevel,
                    'expected' => $conditionItem->value,
                    'operator' => $conditionItem->getOperatorSymbol()
                ];
            } else {
                return [
                    'success' => false,
                    'message' => "宠物等级条件不满足，需要 {$conditionItem->getOperatorSymbol()} {$conditionItem->value}，实际 {$petLevel}",
                    'actual' => $petLevel,
                    'expected' => $conditionItem->value,
                    'operator' => $conditionItem->getOperatorSymbol()
                ];
            }
        } catch (\Exception $e) {
            Log::error('检查宠物等级条件失败', [
                'user_id' => $userId,
                'condition_item' => $conditionItem->id,
                'error' => $e->getMessage()
            ]);
            
            return [
                'success' => false,
                'message' => '检查宠物等级条件时发生错误: ' . $e->getMessage()
            ];
        }
    }
    
    /**
     * 检查物品持有数条件
     * 
     * @param int $userId 用户ID
     * @param GameConditionItem $conditionItem 条件项
     * @return array 检查结果
     */
    protected static function checkItemCountCondition(int $userId, GameConditionItem $conditionItem): array
    {
        try {
            // 获取用户物品
            $itemId = $conditionItem->target_id;
            $userItems = ItemService::getUserItems($userId, ['item_id' => $itemId]);
            
            // 计算物品总数
            $totalQuantity = 0;
            foreach ($userItems as $userItem) {
                $totalQuantity += $userItem->quantity;
            }
            
            // 执行比较
            $result = CONDITION_OPERATOR::compare($totalQuantity, $conditionItem->value, $conditionItem->operator);
            
            if ($result) {
                return [
                    'success' => true,
                    'message' => "物品持有数条件满足",
                    'actual' => $totalQuantity,
                    'expected' => $conditionItem->value,
                    'operator' => $conditionItem->getOperatorSymbol()
                ];
            } else {
                return [
                    'success' => false,
                    'message' => "物品持有数条件不满足，需要 {$conditionItem->getOperatorSymbol()} {$conditionItem->value}，实际 {$totalQuantity}",
                    'actual' => $totalQuantity,
                    'expected' => $conditionItem->value,
                    'operator' => $conditionItem->getOperatorSymbol()
                ];
            }
        } catch (\Exception $e) {
            Log::error('检查物品持有数条件失败', [
                'user_id' => $userId,
                'condition_item' => $conditionItem->id,
                'error' => $e->getMessage()
            ]);
            
            return [
                'success' => false,
                'message' => '检查物品持有数条件时发生错误: ' . $e->getMessage()
            ];
        }
    }
    
    /**
     * 检查代币持有数条件
     * 
     * @param int $userId 用户ID
     * @param GameConditionItem $conditionItem 条件项
     * @return array 检查结果
     */
    protected static function checkCurrencyCountCondition(int $userId, GameConditionItem $conditionItem): array
    {
        try {
            // 获取用户货币账户
            $currencyId = $conditionItem->target_id;
            $account = FundLogic::get_account($userId, $currencyId);
            
            // 检查账户是否存在
            if ($account === false) {
                return [
                    'success' => false,
                    'message' => "用户没有该货币账户"
                ];
            }
            
            $balance = $account->balance;
            
            // 执行比较
            $result = CONDITION_OPERATOR::compare($balance, $conditionItem->value, $conditionItem->operator);
            
            if ($result) {
                return [
                    'success' => true,
                    'message' => "代币持有数条件满足",
                    'actual' => $balance,
                    'expected' => $conditionItem->value,
                    'operator' => $conditionItem->getOperatorSymbol()
                ];
            } else {
                return [
                    'success' => false,
                    'message' => "代币持有数条件不满足，需要 {$conditionItem->getOperatorSymbol()} {$conditionItem->value}，实际 {$balance}",
                    'actual' => $balance,
                    'expected' => $conditionItem->value,
                    'operator' => $conditionItem->getOperatorSymbol()
                ];
            }
        } catch (\Exception $e) {
            Log::error('检查代币持有数条件失败', [
                'user_id' => $userId,
                'condition_item' => $conditionItem->id,
                'error' => $e->getMessage()
            ]);
            
            return [
                'success' => false,
                'message' => '检查代币持有数条件时发生错误: ' . $e->getMessage()
            ];
        }
    }
}