<?php

namespace App\Models;

use App\Config\Database;

class Personality
{
    public static function findAll(): array
    {
        $db = Database::getInstance();
        $stmt = $db->query('SELECT * FROM personalities ORDER BY id ASC');
        return $stmt->fetchAll();
    }

    public static function findById(int $id): ?array
    {
        $db = Database::getInstance();
        $stmt = $db->prepare('SELECT * FROM personalities WHERE id = :id');
        $stmt->execute(['id' => $id]);
        $result = $stmt->fetch();
        return $result ?: null;
    }

    public static function create(array $data): array
    {
        $db = Database::getInstance();
        $stmt = $db->prepare('INSERT INTO personalities (name, prompt, description, icon, is_preset, created_by) VALUES (:name, :prompt, :description, :icon, :is_preset, :created_by)');
        $stmt->execute([
            'name' => $data['name'],
            'prompt' => $data['prompt'],
            'description' => $data['description'] ?? null,
            'icon' => $data['icon'] ?? null,
            'is_preset' => $data['is_preset'] ?? 0,
            'created_by' => $data['created_by'] ?? null,
        ]);

        return self::findById((int) $db->lastInsertId());
    }

    public static function update(int $id, array $data): bool
    {
        $db = Database::getInstance();

        $fields = [];
        $params = ['id' => $id];

        foreach ($data as $key => $value) {
            $fields[] = "{$key} = :{$key}";
            $params[$key] = $value;
        }

        $sql = 'UPDATE personalities SET ' . implode(', ', $fields) . ' WHERE id = :id';
        $stmt = $db->prepare($sql);

        return $stmt->execute($params);
    }

    public static function delete(int $id): bool
    {
        $db = Database::getInstance();
        $stmt = $db->prepare('DELETE FROM personalities WHERE id = :id');
        return $stmt->execute(['id' => $id]);
    }
}