<?php

namespace App\Models;

use App\Models\Scopes\YearScope;
use Illuminate\Database\Eloquent\Attributes\ScopedBy;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Illuminate\Database\Eloquent\Relations\HasMany;
use Illuminate\Database\Eloquent\Relations\MorphTo;
use Illuminate\Database\Eloquent\SoftDeletes;

#[ScopedBy([YearScope::class])]
class SparePartOrder extends Model
{
    use SoftDeletes;

    const STATUS_ORDERED = 'ordered';
    const STATUS_IN_STOCK = 'in_stock';
    const STATUS_SHIPPED = 'shipped';

    const STATUS_NAMES = [
        self::STATUS_ORDERED => 'Заказано',
        self::STATUS_IN_STOCK => 'На складе',
        self::STATUS_SHIPPED => 'Отгружено',
    ];

    const DEFAULT_SORT_BY = 'created_at';

    protected $fillable = [
        'year',
        'spare_part_id',
        'source_text',
        'sourceable_id',
        'sourceable_type',
        'status',
        'ordered_quantity',
        'remaining_quantity',
        'with_documents',
        'note',
        'user_id',
    ];

    protected $casts = [
        'with_documents' => 'boolean',
        'ordered_quantity' => 'integer',
        'remaining_quantity' => 'integer',
        'year' => 'integer',
    ];

    protected static function boot(): void
    {
        parent::boot();

        static::creating(function ($model) {
            if (!isset($model->year)) {
                $model->year = year();
            }
            if (!isset($model->remaining_quantity)) {
                $model->remaining_quantity = $model->ordered_quantity;
            }
        });

        // Автосмена статуса
        static::updating(function ($model) {
            if ($model->remaining_quantity === 0 && $model->status !== self::STATUS_SHIPPED) {
                $model->status = self::STATUS_SHIPPED;
            }
        });
    }

    // Отношения
    public function sparePart(): BelongsTo
    {
        return $this->belongsTo(SparePart::class);
    }

    public function user(): BelongsTo
    {
        return $this->belongsTo(User::class);
    }

    public function sourceable(): MorphTo
    {
        return $this->morphTo();
    }

    public function shipments(): HasMany
    {
        return $this->hasMany(SparePartOrderShipment::class);
    }

    // Scopes
    public function scopeInStock($query)
    {
        return $query->where('status', self::STATUS_IN_STOCK)
            ->where('remaining_quantity', '>', 0);
    }

    public function scopeWithDocuments($query, bool $withDocs = true)
    {
        return $query->where('with_documents', $withDocs);
    }

    // Метод списания
    public function shipQuantity(int $quantity, string $note, ?int $reclamationId = null, ?int $userId = null): bool
    {
        if ($quantity > $this->remaining_quantity) {
            return false;
        }

        // Уменьшаем остаток
        $this->remaining_quantity -= $quantity;
        $this->save();

        // Создаем запись в истории
        SparePartOrderShipment::create([
            'spare_part_order_id' => $this->id,
            'quantity' => $quantity,
            'note' => $note,
            'reclamation_id' => $reclamationId,
            'user_id' => $userId ?? auth()->id(),
            'is_automatic' => $reclamationId !== null,
        ]);

        return true;
    }

    // Получить имя статуса
    public function getStatusNameAttribute(): string
    {
        return self::STATUS_NAMES[$this->status] ?? $this->status;
    }
}