<?php

namespace App\Module\Farm\Models;

use UCore\ModelCore;
use Illuminate\Database\Eloquent\Relations\BelongsTo;

/**
 * 神秘种子土地影响配置模型
 * 
 * @property int $id
 * @property int $seed_id 种子ID
 * @property int $land_type_id 土地类型ID
 * @property int $output_item_id 产出物品ID
 * @property float $probability_modifier 概率修正值
 * @property float|null $probability_override 概率覆盖值
 * @property bool $is_active 是否启用
 * @property \Carbon\Carbon $created_at
 * @property \Carbon\Carbon $updated_at
 * 
 * @property-read FarmSeed $seed 关联的种子
 * @property-read FarmLandType $landType 关联的土地类型
 */
class FarmMysterySeeLandEffect extends ModelCore
{
    protected $table = 'farm_mystery_seed_land_effects';

    // attrlist start 
    protected $fillable = [
        'id',
        'seed_id',
        'land_type_id',
        'output_item_id',
        'probability_modifier',
        'probability_override',
        'is_active',
    ];
    // attrlist end

    protected $casts = [
        'probability_modifier' => 'decimal:4',
        'probability_override' => 'decimal:4',
        'is_active' => 'boolean'
    ];

    /**
     * 关联种子
     */
    public function seed(): BelongsTo
    {
        return $this->belongsTo(FarmSeed::class, 'seed_id');
    }

    /**
     * 关联土地类型
     */
    public function landType(): BelongsTo
    {
        return $this->belongsTo(FarmLandType::class, 'land_type_id');
    }

    /**
     * 关联产出物品
     */
    public function outputItem(): BelongsTo
    {
        return $this->belongsTo(\App\Module\GameItems\Models\Item::class, 'output_item_id');
    }

    /**
     * 获取调整类型
     * 
     * @return string
     */
    public function getAdjustmentTypeAttribute(): string
    {
        return $this->probability_override !== null ? 'override' : 'modifier';
    }

    /**
     * 获取最终概率值
     * 
     * @param float $baseProbability 基础概率
     * @return float
     */
    public function getFinalProbability(float $baseProbability): float
    {
        if ($this->probability_override !== null) {
            // 使用覆盖值
            return $this->probability_override;
        } else {
            // 使用修正值
            return $baseProbability + $this->probability_modifier;
        }
    }

    /**
     * 作用域：启用的配置
     */
    public function scopeActive($query)
    {
        return $query->where('is_active', true);
    }

    /**
     * 作用域：指定种子的配置
     */
    public function scopeForSeed($query, int $seedId)
    {
        return $query->where('seed_id', $seedId);
    }

    /**
     * 作用域：指定土地类型的配置
     */
    public function scopeForLandType($query, int $landTypeId)
    {
        return $query->where('land_type_id', $landTypeId);
    }
}