<?php

namespace App\Modules\Finance\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;

class AccountPayable extends Model
{
    use HasFactory;

    public const STATUS_PENDING = 'pending';
    public const STATUS_PARTIALLY_PAID = 'partially_paid';
    public const STATUS_PAID = 'paid';
    public const STATUS_CANCELLED = 'cancelled';

    protected $fillable = [
        'vendor_id',
        'source_document_type',
        'source_document_id',
        'document_number',
        'total_amount',
        'tax_amount',
        'status',
        'due_date',
        'invoice_number',
        'invoice_date',
        'paid_at',
        'payment_method',
        'payment_note',
        'remarks',
        'created_by',
    ];

    protected $casts = [
        'total_amount' => 'decimal:2',
        'tax_amount' => 'decimal:2',
        'due_date' => 'date',
        'invoice_date' => 'date',
        'paid_at' => 'datetime',
    ];

    /**
     * 關聯：供應商
     * @return BelongsTo
     */
    public function vendor(): BelongsTo
    {
        return $this->belongsTo(\App\Modules\Procurement\Models\Vendor::class, 'vendor_id');
    }

    /**
     * 關聯：建立者
     * @return BelongsTo
     */
    public function creator(): BelongsTo
    {
        return $this->belongsTo(\App\Modules\Core\Models\User::class, 'created_by');
    }
}