<?php

namespace App\Models;

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

class Transaction extends Model
{
    use HasFactory;

    protected $fillable = [
        'budget_item_id',
        'chart_of_account_id',
        'transaction_date',
        'amount',
        'transaction_type',
        'description',
        'reference_number',
        'finance_document_id',
        'membership_payment_id',
        'created_by_user_id',
        'notes',
    ];

    protected $casts = [
        'transaction_date' => 'date',
        'amount' => 'decimal:2',
    ];

    // Relationships

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

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

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

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

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

    // Helper methods

    public function isIncome(): bool
    {
        return $this->transaction_type === 'income';
    }

    public function isExpense(): bool
    {
        return $this->transaction_type === 'expense';
    }

    // Scopes

    public function scopeIncome($query)
    {
        return $query->where('transaction_type', 'income');
    }

    public function scopeExpense($query)
    {
        return $query->where('transaction_type', 'expense');
    }

    public function scopeForPeriod($query, $startDate, $endDate)
    {
        return $query->whereBetween('transaction_date', [$startDate, $endDate]);
    }
}