<?php

declare(strict_types=1);

namespace garden\campanula\models;

// Files of the project
use garden\campanula\models\core,
	garden\campanula\models\authorizations,
	garden\campanula\models\chat,
	garden\campanula\models\settings,
	garden\campanula\models\tariff,
	garden\campanula\models\code,
	garden\campanula\models\enumerations\tariff as tariff_type;

// The library for languages support
use mirzaev\languages\language;

// Baza database
use mirzaev\baza\database,
	mirzaev\baza\column,
	mirzaev\baza\record,
	mirzaev\baza\enumerations\encoding,
	mirzaev\baza\enumerations\type;

// Active Record pattern
use mirzaev\record\interfaces\record as record_interface,
	mirzaev\record\traits\record as record_trait;

// Svoboda time
use svoboda\time\statement as svoboda;

// Framework for Telegram
use Zanzara\Telegram\Type\User as telegram_user;

// Built-in libraries
use Exception as exception,
	RuntimeException as exception_runtime;

/**
 * Account
 *
 * @package garden\campanula\models
 *
 * @license http://www.wtfpl.net/ Do What The Fuck You Want To Public License
 * @author Arsen Mirzaev Tatyano-Muradovich <arsen@mirzaev.sexy>
 */
final class account extends core implements record_interface
{
	use record_trait;

	/**
	 * File
	 *
	 * @var string $database Path to the database file
	 */
	protected string $file = DATABASES . DIRECTORY_SEPARATOR . 'accounts.baza';

	/**
	 * Database
	 *
	 * @var database $database The database
	 */
	public protected(set) database $database;

	/**
	 * Constructor
	 *
	 * @method record|null $record The record
	 *
	 * @return void
	 */
	public function __construct(?record $record = null)
	{
		// Initializing the database
		$this->database = new database()
			->encoding(encoding::utf8)
			->columns(
				new column('identifier', type::long_long_unsigned),
				new column('identifier_telegram', type::long_long_unsigned),
				new column('domain', type::string, ['length' => 32]),
				new column('name_first', type::string, ['length' => 64]),
				new column('name_second', type::string, ['length' => 64]),
				new column('language', type::string, ['length' => 2]),
				new column('robot', type::char),
				/* new column('', type::), */
				new column('updated', type::integer_unsigned),
				new column('created', type::integer_unsigned)
			)
			->connect($this->file);

		// Initializing the record
		$record instanceof record and $this->record = $record;
	}

	/**
	 * Initialize
	 *
	 * @param telegram_user $telegram The telegram account
	 *
	 * @throws exception_runtime if update the account record in the database by the telegram account values
	 * @throws exception_runtime if failed to find the registered account
	 * @throws exception_runtime if failed to registrate the account
	 *
	 * @return static|null The account, if found, updated or created
	 */
	public function initialize(telegram_user $telegram): ?static
	{
		// Searching for the account in the database
		$account = $this->database->read(filter: fn(record $record) => $record->identifier_telegram === $telegram->getId(), amount: 1)[0] ?? null;

		if ($account instanceof record) {
			// Found the account record

			if (
				$account->domain !== (string) $telegram->getUsername() ||
				$account->name_first !== (string) $telegram->getFirstName() ||
				$account->name_second !== (string) $telegram->getLastName() ||
				$account->language !== (string) $telegram->getLanguageCode()
			) {
				// The telegram account was updated

				// Updating the account in the database
				$updated = $this->database->read(
					filter: fn(record $record) => $record->identifier_telegram === $telegram->getId(),
					update: function (record &$record) use ($telegram) {
						// Writing new values into the record
						$record->domain = (string) $telegram->getUsername();
						$record->name_first = (string) $telegram->getFirstName();
						$record->name_second = (string) $telegram->getLastName();
						$record->language = (string) $telegram->getLanguageCode();
						$record->updated = svoboda::timestamp();
					},
					amount: 1
				)[0] ?? null;

				if ($updated instanceof record && $updated->values() !== $account->values()) {
					// Updated the account in the database

					// Writing the updated record into the account object
					$this->record = $updated;

					// Deserializing parameters
					$this->deserialize();

					// Exit (success)
					return $this;
				} else {
					// Not updated the account in the database

					// Exit (fail)
					throw new exception_runtime('Failed to update the account record in the database by the telegram account values');
				}
			}

			// Writing the found record into the account object
			$this->record = $account;

			// Deserializing parameters
			$this->deserialize();

			// Exit (success)
			return $this;
		} else {
			// Not found the account record

			if ($this->registrate($telegram)) {
				// Registered the account

				// Searching for the registered account in the database
				$registered = $this->database->read(filter: fn(record $record) => $record->identifier_telegram === $telegram->getId(), amount: 1)[0] ?? null;

				if ($registered instanceof record) {
					// Found the registered account

					// Writing the registered record into the account object
					$this->record = $registered;

					// Deserializing parameters
					$this->deserialize();

					// Exit (success)
					return $this;
				} else {
					// Not found the registered account

					// Exit (fail)
					throw new exception_runtime('Failed to find the registered account');
				}
			} else {
				// Not registered the account

				// Exit (fail)
				throw new exception_runtime('Failed to registrate the account');
			}
		}
	}

	/**
	 * Registrate
	 *
	 * Create the account by the telegram account data
	 *
	 * @param telegram_user $telegram The telegram account
	 *
	 * @return record|false The record, if created
	 */
	public function registrate(telegram_user $telegram): record|false
	{
		// Creating the record
		$record = $this->write(
			telegram_identifier: (int) $telegram->getId(),
			name_first: (string) $telegram->getFirstName(),
			name_last: (string) $telegram->getLastName(),
			domain: (string) $telegram->getUsername(),
			language: (string) $telegram->getLanguageCode(),
			robot: (bool) $telegram->isBot()
		);

		if ($record instanceof record) {
			// The record was writed into the database

			// Initializing the authorizations model
			$authorizations = new authorizations();

			// Creating the authorizations record
			$authorizations->write(account: $record->identifier);

			// Initializing the settings model
			$settings = new settings();

			// Creating the account settings
			$settings->write(account: $record->identifier);

			// Initializing the chat model
			$chat = new chat();

			// Creating the account chat
			$record->chat = $chat->write(account: $record->identifier, network: NETWORK_DEFAULT);

			// Initializing the tariff model
			$tariff = new tariff();

			// Creating the tariff record
			$record->tariff = $tariff->write(account: $record->identifier, invoice: 0, active: 1, type: TARIFF_DEFAULT ?? tariff_type::free);

			// Writing the record into the database
			$record = $this->database->read(
				filter: fn(record $_record) => $_record->identifier === $record->identifier,
				update: fn(record &$_record) => $_record = $record,
				amount: 1
			)[0] ?? null;

			// Exit (success)
			return $record;
		}

		// Exit (fail)
		return false;
	}

	/**
	 * Write
	 *
	 * @param int $telegram_identifier The telegram account identifier
	 * @param string $name_first
	 * @param string $name_last
	 * @param string $domain
	 * @param language|string $language
	 * @param bool $robot Is a robot?
	 *
	 * @return record|false The record, if created
	 */
	public function write(
		int $telegram_identifier,
		string $domain = '',
		string $name_first = '',
		string $name_last = '',
		language|string $language = LANGUAGE_DEFAULT ?? language::en,
		bool $robot = false,
	): record|false {
		// Initializing the record
		$record = $this->database->record(
			$this->database->count() + 1,
			(int) $telegram_identifier,
			$domain,
			$name_first,
			$name_last,
			$language instanceof language ? $language->name : (string) $language,
			(int) $robot,
			/* */
			svoboda::timestamp(),
			svoboda::timestamp()
		);

		// Writing the record into the database
		$created = $this->database->write($record);

		// Exit (success)
		return $created ? $record : false;
	}

	/**
	 * Serialize
	 *
	 * @return self The instance from which the method was called (fluent interface)
	 */
	public function serialize(): self
	{
		// Serializing the record parameters
		$this->record->language = $this->record->language->name;

		// Exit (success)
		return $this;
	}

	/**
	 * Deserialize
	 *
	 * @return self The instance from which the method was called (fluent interface)
	 */
	public function deserialize(): self
	{
		// Deserializing the record parameters
		$this->record->language = language::{$this->record->language} ?? LANGUAGE_DEFAULT ?? language::en;

		// Exit (success)
		return $this;
	}

	/**
	 * Authorizations
	 *
	 * Search for the account authorizations
	 *
	 * @return authorizations|null The account authorizations
	 */
	public function authorizations(): ?authorizations
	{
		// Search for the account authorizations
		$authorizations = new authorizations()->read(filter: fn(record $record) => $record->active === 1 && $record->account === $this->identifier);

		if ($authorizations instanceof authorizations) {
			// Found the account authorizations

			// Exit (success)
			return $authorizations;
		}

		// Exit (fail)
		return null;
	}

	/**
	 * Settings
	 *
	 * Search for the account settings
	 *
	 * @return settings|null The account settings
	 */
	public function settings(): ?settings
	{
		// Search for the account settings 
		$settings = new settings()->read(filter: fn(record $record) => $record->active === 1 && $record->account === $this->identifier);

		if ($settings instanceof settings) {
			// Found the account settings

			// Exit (success)
			return $settings;
		}

		// Exit (fail)
		return null;
	}
}