<?php

namespace Core;

use PDO;

abstract class Model
{
    protected static string $table;
    protected PDO $db;

    public function __construct()
    {
        $this->db = Database::getConnection();
    }

    public function all(): array
    {
        $stmt = $this->db->query("SELECT * FROM " . static::$table . " ORDER BY id DESC");
        return $stmt->fetchAll();
    }

    public function find(int $id): ?array
    {
        $stmt = $this->db->prepare("SELECT * FROM " . static::$table . " WHERE id = ?");
        $stmt->execute([$id]);
        $result = $stmt->fetch();
        return $result ?: null;
    }

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

        $sql = "INSERT INTO " . static::$table . " ($columns) VALUES ($placeholders)";
        $stmt = $this->db->prepare($sql);
        $stmt->execute(array_values($data));

        return (int)$this->db->lastInsertId();
    }

    public function update(int $id, array $data): bool
    {
        $set = implode(', ', array_map(fn($col) => "$col = ?", array_keys($data)));
        $sql = "UPDATE " . static::$table . " SET $set WHERE id = ?";

        $stmt = $this->db->prepare($sql);
        return $stmt->execute([...array_values($data), $id]);
    }

    public function delete(int $id): bool
    {
        $stmt = $this->db->prepare("DELETE FROM " . static::$table . " WHERE id = ?");
        return $stmt->execute([$id]);
    }

    public function where(string $column, $value): array
    {
        $stmt = $this->db->prepare("SELECT * FROM " . static::$table . " WHERE $column = ?");
        $stmt->execute([$value]);
        return $stmt->fetchAll();
    }
}