<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Illuminate\Database\Eloquent\Relations\HasOne;
use Illuminate\Database\Eloquent\Relations\HasMany;

class Platform extends Model
{
    /**
     * 可批量赋值的属性
     *
     * @var array
     */
    protected $fillable = [
        'shop_auth_id',
        'platform_product_id',
        'platform_sku_id',
        'title',
        'description',
        'price',
        'original_price',
        'stock',
        'sold',
        'images',
        'specs',
        'status',
        'sync_status',
        'last_sync_at',
        'sync_error',
    ];

    /**
     * 应进行类型转换的属性
     *
     * @var array
     */
    protected $casts = [
        'images' => 'array',
        'specs' => 'array',
        'price' => 'decimal:2',
        'original_price' => 'decimal:2',
        'stock' => 'integer',
        'sold' => 'integer',
        'last_sync_at' => 'datetime',
    ];

    /**
     * 关联店铺授权
     *
     * @return BelongsTo
     */
    public function shopAuth(): BelongsTo
    {
        return $this->belongsTo(ShopAuth::class);
    }

    /**
     * 关联SKU绑定
     */
    public function skuBindings(): HasMany
    {
        return $this->hasMany(PlatformSkuBinding::class, 'platform_sku_id');
    }

    /**
     * 获取当前生效的绑定
     */
    public function activeBinding(): HasOne
    {
        return $this->hasOne(PlatformSkuBinding::class, 'platform_sku_id')->where('is_active', true);
    }

    /**
     * 获取状态标签
     *
     * @return string
     */
    public function getStatusLabelAttribute(): string
    {
        return match($this->status) {
            'on_sale' => '在售',
            'off_sale' => '下架',
            'deleted' => '已删除',
            default => '未知',
        };
    }

    /**
     * 获取同步状态标签
     *
     * @return string
     */
    public function getSyncStatusLabelAttribute(): string
    {
        return match($this->sync_status) {
            'pending' => '待同步',
            'syncing' => '同步中',
            'synced' => '已同步',
            'failed' => '同步失败',
            default => '未知',
        };
    }
}