<?php

namespace App\Models;

use CodeIgniter\Model;
use App\Models\Concerns\SchoolYearAutoFillTrait;
use CodeIgniter\Database\ConnectionInterface;
use CodeIgniter\Validation\ValidationInterface;

class ManualPaymentModel extends Model
{
    use SchoolYearAutoFillTrait;

    protected $table = 'manual_payments';
    protected $allowedFields = [
        'invoice_number', 
        'amount', 
        'payment_method', 
        'reference', 
        'proof_path', 
        'update_by',
        'school_year',
        'created_at'];
    protected $validationRules = [
        'school_year' => 'required|string|max_length[9]',
    ];

    protected $useTimestamps = false;

    private array $manualPaymentColumns = [];

    public function __construct(?ConnectionInterface $db = null, ?ValidationInterface $validation = null)
    {
        parent::__construct($db, $validation);

        $this->manualPaymentColumns = $this->getTableColumns($this->table);
        $this->allowedFields = array_values(array_filter(
            $this->allowedFields,
            fn (string $field): bool => in_array($field, $this->manualPaymentColumns, true)
        ));

        foreach (array_keys($this->validationRules) as $field) {
            if (!in_array($field, $this->allowedFields, true)) {
                unset($this->validationRules[$field]);
            }
        }
    }

    private function getTableColumns(string $table): array
    {
        try {
            return $this->db->getFieldNames($table);
        } catch (\Throwable $e) {
            log_message('error', '[ManualPaymentModel] Could not read table columns for {table}: {error}', [
                'table' => $table,
                'error' => $e->getMessage(),
            ]);

            return [];
        }
    }
}