<?php
http_response_code(404);
exit();


class Database
{
    private $db;


    function __construct($filename, $flags = SQLITE3_OPEN_READWRITE)
    {
        $this->db = new SQLite3($filename, $flags);
    }

    function close(): void
    {
        $this->db->close();
    }


    function install(): void
    {

    }

    function add_user($uuid, $email, $password): bool
    {
        $stmt = $this->db->prepare("INSERT INTO users (uuid, email, password) VALUES (:uuid, :email, :password);");
        $stmt->bindValue(":uuid", $uuid);
        $stmt->bindValue(":email", $email);
        $stmt->bindValue(":password", password_hash($password, PASSWORD_DEFAULT));
        return $stmt->execute() !== false;
    }

    function delete_user($uuid): bool
    {
        $stmt = $this->db->prepare("DELETE FROM users WHERE uuid=:uuid;");
        $stmt->bindValue(":uuid", $uuid);
        return $stmt->execute() !== false;
    }

    function get_user_by_email($email): array|null
    {
        $stmt = $this->db->prepare("SELECT uuid, password FROM users WHERE email=:email;");
        $stmt->bindValue(":email", $email);
        $result = $stmt->execute();

        if ($result->numColumns() === 0) {
            return null;
        }
        return $stmt->execute()->fetchArray(SQLITE3_ASSOC);
    }

    function set_user_email($uuid, $email): bool
    {
        $stmt = $this->db->prepare("UPDATE users SET email=:email WHERE uuid=:uuid;");
        $stmt->bindValue(":uuid", $uuid);
        $stmt->bindValue(":email", $email);
        return $stmt->execute() !== false;
    }

    function set_user_password($uuid, $password): bool
    {
        $stmt = $this->db->prepare("UPDATE users SET password=:password WHERE uuid=:uuid;");
        $stmt->bindValue(":uuid", $uuid);
        $stmt->bindValue(":password", $password);
        return $stmt->execute() !== false;
    }
}