<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Illuminate\Support\Facades\Auth;

class ShipmentChecklist extends Model
{
    use HasFactory;

    protected $fillable = [
        'shipment_id',
        'user_id',          // (deprecated) نگه‌داری‌شده برای backward-compat
        'status',           // (deprecated) — از item_title استفاده شود
        'item_title',
        'is_required',
        'sort_order',
        'is_completed',
        'completed_by',
        'notes',
        'attachment',
        'completed_at',
    ];

    protected $casts = [
        'is_required' => 'boolean',
        'is_completed' => 'boolean',
        'sort_order' => 'integer',
        'completed_at' => 'datetime',
    ];

    // ─── Relationships ───────────────────────────────

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

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

    public function completedBy(): BelongsTo
    {
        return $this->belongsTo(User::class, 'completed_by');
    }

    // ─── Scopes ───────────────────────────────────────

    public function scopeIncomplete($query)
    {
        return $query->where('is_completed', false);
    }

    public function scopeRequired($query)
    {
        return $query->where('is_required', true);
    }

    // ─── Helpers ─────────────────────────────────────

    /**
     * تکمیل یک آیتم چک‌لیست توسط کارمند.
     */
    public function complete(?int $userId = null, ?string $note = null): void
    {
        $data = [
            'is_completed' => true,
            'completed_by' => $userId ?? Auth::id(),
            'completed_at' => now(),
        ];

        if ($note) {
            $existing = $this->notes ? $this->notes . "\n\n" : '';
            $data['notes'] = $existing . '[' . now()->format('Y-m-d H:i') . '] ' . $note;
        }

        $this->update($data);
    }
}