<?php

declare(strict_types=1);

namespace App\Models;

use App\Core\Database;
use PDO;

abstract class BaseModel
{
    protected string $table;
    protected string $primaryKey = 'id';
    protected array $fillable = [];

    protected function db(): PDO
    {
        return Database::getInstance();
    }

    public function find(string $id): ?array
    {
        $stmt = $this->db()->prepare("SELECT * FROM {$this->table} WHERE {$this->primaryKey} = ? AND deleted_at IS NULL LIMIT 1");
        $stmt->execute([$id]);
        return $stmt->fetch() ?: null;
    }

    public function create(array $data): string|bool
    {
        $columns = implode(', ', array_keys($data));
        $placeholders = implode(', ', array_fill(0, count($data), '?'));

        $sql = "INSERT INTO {$this->table} ({$columns}) VALUES ({$placeholders})";
        $stmt = $this->db()->prepare($sql);
        
        if ($stmt->execute(array_values($data))) {
            return $data[$this->primaryKey] ?? $this->db()->lastInsertId();
        }

        return false;
    }

    public function update(string $id, array $data): bool
    {
        $sets = [];
        foreach (array_keys($data) as $column) {
            $sets[] = "{$column} = ?";
        }
        $setString = implode(', ', $sets);

        $sql = "UPDATE {$this->table} SET {$setString} WHERE {$this->primaryKey} = ?";
        $stmt = $this->db()->prepare($sql);
        
        $params = array_values($data);
        $params[] = $id;

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

    public function delete(string $id): bool
    {
        $sql = "UPDATE {$this->table} SET deleted_at = NOW() WHERE {$this->primaryKey} = ?";
        $stmt = $this->db()->prepare($sql);
        return $stmt->execute([$id]);
    }
}