<?php

namespace App\Models;

use App\Models\BaseModel;

class InventoryMovement extends BaseModel
{
    protected $table = 'inventory_movements';

    // ✅ legacy: useTimestamps = true (created_at/updated_at)
    public $timestamps = true;

    protected $fillable = [
        'item_id',
        'qty_change',
        'movement_type',
        'reason',
        'note',
        'semester',
        'school_year',
        'performed_by',
        'teacher_id',
        'student_id',
        'class_section_id',
        // Audit/correction fields
        'voided_at',
        'voided_by',
        'void_reason',
        'corrects_movement_id',
        'source_type',
        'source_id',
    ];

    protected $casts = [
        'item_id'         => 'integer',
        'qty_change'      => 'integer',
        'performed_by'    => 'integer',
        'teacher_id'      => 'integer',
        'student_id'      => 'integer',
        'class_section_id'=> 'integer',
        'voided_by'       => 'integer',
        'corrects_movement_id' => 'integer',
        'source_id'       => 'integer',
        'voided_at'       => 'datetime',
    ];

    /* Scopes */
    public function scopeNotVoided($query)
    {
        return $query->whereNull('voided_at');
    }

    public function scopeVoided($query)
    {
        return $query->whereNotNull('voided_at');
    }

    /* Optional relationships */
    public function item()
    {
        return $this->belongsTo(InventoryItem::class, 'item_id');
    }

    public function performer()
    {
        return $this->belongsTo(User::class, 'performed_by');
    }

    public function teacher()
    {
        return $this->belongsTo(User::class, 'teacher_id');
    }

    public function student()
    {
        return $this->belongsTo(Student::class, 'student_id');
    }

    public function classSection()
    {
        return $this->belongsTo(ClassSection::class, 'class_section_id');
    }

    public function voidedBy()
    {
        return $this->belongsTo(User::class, 'voided_by');
    }

    public function correctsMovement()
    {
        return $this->belongsTo(self::class, 'corrects_movement_id');
    }

    public function corrections()
    {
        return $this->hasMany(self::class, 'corrects_movement_id');
    }
}