<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\SoftDeletes;

class Expense extends Model
{
    use HasFactory, SoftDeletes;

    protected $fillable = [
        'tenant_id',
        'project_id',
        'petty_cash_id',
        'employee_id',
        'currency_id',
        'amount',
        'amount_usd',
        'original_amount',
        'category',
        'description',
        'expense_date',
        'receipt_path',
        'requested_by',
        'approved_by',
        'approval_date',
        'approved_at',
        'status',
    ];

    protected $casts = [
        'amount' => 'decimal:2',
        'amount_usd' => 'decimal:2',
        'original_amount' => 'decimal:2',
        'expense_date' => 'date',
        'approval_date' => 'datetime',
        'approved_at' => 'datetime',
    ];

    public function tenant()
    {
        return $this->belongsTo(Tenant::class);
    }

    public function project()
    {
        return $this->belongsTo(Project::class);
    }

    public function pettyCash()
    {
        return $this->belongsTo(PettyCash::class);
    }

    public function employee()
    {
        return $this->belongsTo(Employee::class);
    }

    public function currency()
    {
        return $this->belongsTo(Currency::class);
    }

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

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

    /**
     * Alias for approvedBy (backward compatibility).
     */
    public function approver()
    {
        return $this->approvedBy();
    }

    /**
     * Scope: filter by category.
     */
    public function scopeByCategory($query, $category)
    {
        return $query->where('category', $category);
    }

    /**
     * Scope: filter by status.
     */
    public function scopeByStatus($query, $status)
    {
        return $query->where('status', $status);
    }

    /**
     * Get the status label for display.
     */
    public function getStatusLabelAttribute(): string
    {
        return [
            'pending' => __('expense.pending'),
            'approved' => __('expense.approved'),
            'rejected' => __('expense.rejected'),
            'paid' => __('expense.paid'),
        ][$this->status] ?? $this->status;
    }
}