<?php
/**
 * Hummingbird Anime Client
 *
 * An API client for Hummingbird to manage anime and manga watch lists
 *
 * @package     HummingbirdAnimeClient
 * @author      Timothy J. Warren
 * @copyright   Copyright (c) 2015 - 2016
 * @link        https://github.com/timw4mail/HummingBirdAnimeClient
 * @license     MIT
 */

namespace Aviat\AnimeClient\Model;

use GuzzleHttp\Cookie\Cookiejar;
use GuzzleHttp\Cookie\SetCookie;

use Aviat\Ion\Json;
use Aviat\AnimeClient\Model\API;
use Aviat\AnimeClient\Hummingbird\Transformer;
use Aviat\AnimeClient\Hummingbird\Enum\MangaReadingStatus;

/**
 * Model for handling requests dealing with the manga list
 */
class Manga extends API {

	const READING = 'Reading';
	const PLAN_TO_READ = 'Plan to Read';
	const DROPPED = 'Dropped';
	const ON_HOLD = 'On Hold';
	const COMPLETED = 'Completed';

	/**
	 * Map API constants to display constants
	 * @var array
	 */
	protected $const_map = [
		MangaReadingStatus::READING => self::READING,
		MangaReadingStatus::PLAN_TO_READ => self::PLAN_TO_READ,
		MangaReadingStatus::ON_HOLD => self::ON_HOLD,
		MangaReadingStatus::DROPPED => self::DROPPED,
		MangaReadingStatus::COMPLETED => self::COMPLETED
	];

	/**
	 * The base url for api requests
	 * @var string
	 */
	protected $base_url = "https://hummingbird.me/";

	protected function _manga_api_call($type, $url, $json=null)
	{
		$token = $this->container->get('auth')
			->get_auth_token();

		// Set the token cookie, with the authentication token
		// from the auth class.
		$cookieJar = $this->cookieJar;
		$cookie_data = new SetCookie([
			'Name' => 'token',
			'Value' => $token,
			'Domain' => 'hummingbird.me'
		]);
		$cookieJar->setCookie($cookie_data);

		$config = [
			'cookies' => $cookieJar
		];

		if ( ! is_null($json))
		{
			$config['json'] = $json;
		}

		$result = $this->client->request(strtoupper($type), $url, $config);

		return [
			'statusCode' => $result->getStatusCode(),
			'body' => $result->getBody()
		];
	}

	/**
	 * Add a manga to the list
	 *
	 * @param array $data
	 */
	public function add($data)
	{
		$object = [
			'manga_library_entry' => [
				'status' => $data['status'],
				'manga_id' => $data['id']
			]
		];

		return $this->_manga_api_call('post', 'manga_library_entries', $object);
	}

	/**
	 * Update the selected manga
	 *
	 * @param array $data
	 * @return array
	 */
	public function update($data)
	{
		$id = $data['id'];

		return $this->_manga_api_call(
			'put',
			"manga_library_entries/{$id}",
			['manga_library_entry' => $data]
		);
	}

	/**
	 * Delete a manga entry
	 *
	 * @param  array $data
	 * @return array
	 */
	public function delete($data)
	{
		$id = $data['id'];

		return $this->_manga_api_call('delete', "manga_library_entries/{$id}");
	}

	/**
	 * Search for manga by name
	 *
	 * @param string $name
	 * @return array
	 */
	public function search($name)
	{
		$logger = $this->container->getLogger('default');

		$config = [
			'query' => [
				'scope' => 'manga',
				'depth' => 'full',
				'query' => $name
			]
		];

		$response = $this->get('search.json', $config);

		if ($response->getStatusCode() != 200)
		{
			$logger->warning("Non 200 response for search api call");
			$logger->warning($response->getBody());

			throw new RuntimeException($response->getEffectiveUrl());
		}

		return Json::decode($response->getBody(), TRUE);
	}

	/**
	 * Get the full set of anime lists
	 *
	 * @return array
	 */
	public function get_all_lists()
	{
		$data = $this->_get_list_from_api();

		foreach ($data as &$val)
		{
			$this->sort_by_name($val, 'manga');
		}

		return $data;
	}

	/**
	 * Get a category out of the full list
	 *
	 * @param string $status
	 * @return array
	 */
	public function get_list($status)
	{
		$data = $this->_get_list_from_api($status);
		$this->sort_by_name($data, 'manga');

		return $data;
	}

	/**
	 * Retrieve the list from the hummingbird api
	 *
	 * @param  string $status
	 * @return array
	 */
	protected function _get_list_from_api($status = "All")
	{
		$config = [
			'query' => [
				'user_id' => $this->config->get('hummingbird_username')
			],
			'allow_redirects' => FALSE
		];

		$response = $this->get('manga_library_entries', $config);
		$data = $this->_check_cache($response);
		$output = $this->map_by_status($data);

		return (array_key_exists($status, $output))
			? $output[$status]
			: $output;
	}

	/**
	 * Check the status of the cache and return the appropriate response
	 *
	 * @param \GuzzleHttp\Message\Response $response
	 * @codeCoverageIgnore
	 * @return array
	 */
	private function _check_cache($response)
	{
		// Bail out early if there isn't any manga data
		$api_data = Json::decode($response->getBody(), TRUE);
		if ( ! array_key_exists('manga', $api_data))
		{
			return [];
		}

		$cache_file = _dir($this->config->get('data_cache_path'), 'manga.json');
		$transformed_cache_file = _dir(
			$this->config->get('data_cache_path'),
			'manga-transformed.json'
		);

		$cached_data = file_exists($cache_file)
			? Json::decodeFile($cache_file)
			: [];

		if ($cached_data === $api_data && file_exists($transformed_cache_file))
		{
			return Json::decodeFile($transformed_cache_file);
		}
		else
		{
			Json::encodeFile($cache_file, $api_data);

			$zippered_data = $this->zipper_lists($api_data);
			$transformer = new Transformer\MangaListTransformer();
			$transformed_data = $transformer->transform_collection($zippered_data);
			Json::encodeFile($transformed_cache_file, $transformed_data);
			return $transformed_data;
		}
	}

	/**
	 * Map transformed anime data to be organized by reading status
	 *
	 * @param array $data
	 * @return array
	 */
	private function map_by_status($data)
	{
		$output = [
			self::READING => [],
			self::PLAN_TO_READ => [],
			self::ON_HOLD => [],
			self::DROPPED => [],
			self::COMPLETED => [],
		];

		foreach ($data as &$entry)
		{
			$entry['manga']['image'] = $this->get_cached_image(
				$entry['manga']['image'],
				$entry['manga']['slug'],
				'manga'
			);
			$key = $this->const_map[$entry['reading_status']];
			$output[$key][] = $entry;
		}

		return $output;
	}

	/**
	 * Combine the two manga lists into one
	 * @param  array $raw_data
	 * @return array
	 */
	private function zipper_lists($raw_data)
	{
		return (new Transformer\MangaListsZipper($raw_data))->transform();
	}
}
// End of MangaModel.php