<?php

namespace Modules\AI\Models;

use Illuminate\Database\Eloquent\Model;

final class AIPrompt extends Model
{
    protected $fillable = ['name', 'slug', 'purpose', 'system_prompt', 'user_template', 'variables', 'version', 'is_active', 'created_by'];

    protected $casts = ['variables' => 'array', 'is_active' => 'boolean'];

    public function render(array $variables): string
    {
        return preg_replace_callback('/\{\{\s*([\w.]+)\s*\}\}/', fn ($m) => (string) data_get($variables, $m[1], ''), $this->user_template) ?? $this->user_template;
    }
}