<?php

namespace ManiaControl\Plugins;

use FML\Controls\Frame;
use FML\Controls\Label;
use FML\Controls\Labels\Label_Button;
use FML\Controls\Labels\Label_Text;
use FML\Controls\Quads\Quad_Icons64x64_1;
use FML\Script\Features\Paging;
use FML\Script\Script;
use ManiaControl\Admin\AuthenticationManager;
use ManiaControl\Configurators\ConfiguratorMenu;
use ManiaControl\Files\FileUtil;
use ManiaControl\ManiaControl;
use ManiaControl\Manialinks\ManialinkPageAnswerListener;
use ManiaControl\Players\Player;

/**
 * Configurator for installing Plugins
 *
 * @author    ManiaControl Team <mail@maniacontrol.com>
 * @copyright 2014 ManiaControl Team
 * @license   http://www.gnu.org/licenses/ GNU General Public License, Version 3
 */
class PluginInstallMenu implements ConfiguratorMenu, ManialinkPageAnswerListener {
	/*
	 * Constants
	 */
	const SETTING_PERMISSION_INSTALL_PLUGINS = 'Install Plugins';
	const ACTION_PREFIX_INSTALL_PLUGIN       = 'PluginInstallMenu.Install.';
	const ACTION_REFRESH_LIST                = 'PluginInstallMenu.RefreshList';

	/*
	 * Private Properties
	 */
	private $maniaControl = null;

	/**
	 * Create a new Plugin Install Menu
	 *
	 * @param ManiaControl $maniaControl
	 */
	public function __construct(ManiaControl $maniaControl) {
		$this->maniaControl = $maniaControl;

		$this->maniaControl->authenticationManager->definePermissionLevel(self::SETTING_PERMISSION_INSTALL_PLUGINS, AuthenticationManager::AUTH_LEVEL_SUPERADMIN);
		$this->maniaControl->manialinkManager->registerManialinkPageAnswerListener(self::ACTION_REFRESH_LIST, $this, 'handleRefreshListAction');
	}

	/**
	 * @see \ManiaControl\Configurators\ConfiguratorMenu::getMenu()
	 */
	public function getMenu($width, $height, Script $script, Player $player) {
		$paging = new Paging();
		$script->addFeature($paging);
		$frame = new Frame();

		// Config
		$pagerSize   = 9.;
		$entryHeight = 5.;
		$posY        = 0.;
		$pageFrame   = null;

		$url        = ManiaControl::URL_WEBSERVICE . 'plugins';
		$dataJson   = FileUtil::loadFile($url);
		$pluginList = json_decode($dataJson);
		$index      = 0;

		if (!is_array($pluginList)) {
			// Error text
			$errorFrame = $this->getErrorFrame();
			$frame->add($errorFrame);
		} else if (empty($pluginList)) {
			// Empty text
			$emptyFrame = $this->getEmptyFrame();
			$frame->add($emptyFrame);
		} else {
			// Build plugin list
			// Pagers
			$pagerPrev = new Quad_Icons64x64_1();
			$frame->add($pagerPrev);
			$pagerPrev->setPosition($width * 0.39, $height * -0.44, 2)
			          ->setSize($pagerSize, $pagerSize)
			          ->setSubStyle($pagerPrev::SUBSTYLE_ArrowPrev);

			$pagerNext = clone $pagerPrev;
			$frame->add($pagerNext);
			$pagerNext->setX($width * 0.45);

			$pageCountLabel = new Label_Text();
			$frame->add($pageCountLabel);
			$pageCountLabel->setHAlign($pageCountLabel::RIGHT)
			               ->setPosition($width * 0.35, $height * -0.44, 1)
			               ->setStyle($pageCountLabel::STYLE_TextTitle1)
			               ->setTextSize(2);

			$paging->addButton($pagerNext)
			       ->addButton($pagerPrev)
			       ->setLabel($pageCountLabel);

			// Info tooltip
			$infoTooltipLabel = new Label();
			$frame->add($infoTooltipLabel);
			$infoTooltipLabel->setAlign($infoTooltipLabel::LEFT, $infoTooltipLabel::TOP)
			                 ->setPosition($width * -0.45, $height * -0.22)
			                 ->setSize($width * 0.7, $entryHeight)
			                 ->setTextSize(1)
			                 ->setTranslate(true)
			                 ->setVisible(false)
			                 ->setAutoNewLine(true)
			                 ->setMaxLines(5);

			// List plugins
			foreach ($pluginList as $plugin) {
				if ($this->maniaControl->pluginManager->isPluginIdInstalled($plugin->id)) {
					// Already installed -> Skip
					continue;
				}

				if ($index % 10 === 0) {
					// New page
					$pageFrame = new Frame();
					$frame->add($pageFrame);
					$paging->addPage($pageFrame);
					$posY = $height * 0.41;
				}

				$pluginFrame = new Frame();
				$pageFrame->add($pluginFrame);
				$pluginFrame->setY($posY);

				$nameLabel = new Label_Text();
				$pluginFrame->add($nameLabel);
				$nameLabel->setHAlign($nameLabel::LEFT)
				          ->setX($width * -0.46)
				          ->setSize($width * 0.6, $entryHeight)
				          ->setStyle($nameLabel::STYLE_TextCardSmall)
				          ->setTextSize(2)
				          ->setText($plugin->name);

				$description = "Author: {$plugin->author}\nVersion: {$plugin->currentVersion->version}\nDesc: {$plugin->description}";
				$nameLabel->addTooltipLabelFeature($infoTooltipLabel, $description);

				if (!$this->isPluginCompatible($plugin)) {
					// Incompatibility label
					$infoLabel = new Label_Text();
					$pluginFrame->add($infoLabel);
					$infoLabel->setHAlign($infoLabel::RIGHT)
					          ->setX($width * 0.45)
					          ->setSize($width * 0.3, $entryHeight)
					          ->setTextSize(1)
					          ->setTextColor('f30');
					if ($plugin->currentVersion->min_mc_version > ManiaControl::VERSION) {
						$infoLabel->setText("Needs at least MC-Version '{$plugin->currentVersion->min_mc_version}'");
					} else {
						$infoLabel->setText("Needs at most MC-Version '{$plugin->currentVersion->max_mc_version}'");
					}
				} else {
					// Install button
					$installButton = new Label_Button();
					$pluginFrame->add($installButton);
					$installButton->setHAlign($installButton::RIGHT)
					              ->setX($width * 0.45)
					              ->setStyle($installButton::STYLE_CardButtonSmall)
					              ->setText('Install')
					              ->setTranslate(true)
					              ->setAction(self::ACTION_PREFIX_INSTALL_PLUGIN . $plugin->id);
				}

				$posY -= $entryHeight;
				$index++;
			}
		}

		return $frame;
	}

	/**
	 * Build the Frame to display when an Error occurred
	 *
	 * @return Frame
	 */
	private function getErrorFrame() {
		$frame = new Frame();

		$infoLabel = new Label_Text();
		$frame->add($infoLabel);
		$infoLabel->setVAlign($infoLabel::BOTTOM)
		          ->setY(2)
		          ->setSize(100, 25)
		          ->setTextColor('f30')
		          ->setTranslate(true)
		          ->setText('An error occurred. Please try again later.');

		$refreshQuad = new Quad_Icons64x64_1();
		$frame->add($refreshQuad);
		$refreshQuad->setY(-4)
		            ->setSize(8, 8)
		            ->setSubStyle($refreshQuad::SUBSTYLE_Refresh)
		            ->setAction(self::ACTION_REFRESH_LIST);

		return $frame;
	}

	/**
	 * Build the Frame to display when no Plugins are left to install
	 *
	 * @return Frame
	 */
	private function getEmptyFrame() {
		$frame = new Frame();

		$infoLabel = new Label_Text();
		$frame->add($infoLabel);
		$infoLabel->setSize(100, 50)
		          ->setTextColor('0f3')
		          ->setTranslate(true)
		          ->setText('No other plugins available.');

		return $frame;
	}

	/**
	 * Check if the given Plugin can be installed without Issues
	 *
	 * @param object $plugin
	 * @return bool
	 */
	private function isPluginCompatible($plugin) {
		if ($plugin->currentVersion->min_mc_version > 0 && $plugin->currentVersion->min_mc_version > ManiaControl::VERSION) {
			// ManiaControl needs to be updated
			return false;
		}
		if ($plugin->currentVersion->max_mc_version > 0 && $plugin->currentVersion->max_mc_version < ManiaControl::VERSION) {
			// Plugin is outdated
			return false;
		}
		return true;
	}

	/**
	 * @see \ManiaControl\Configurators\ConfiguratorMenu::saveConfigData()
	 */
	public function saveConfigData(array $configData, Player $player) {
	}

	/**
	 * Handle the Refresh MLAction
	 *
	 * @param array  $actionCallback
	 * @param Player $player
	 */
	public function handleRefreshListAction(array $actionCallback, Player $player) {
		$menuId = $this->maniaControl->configurator->getMenuId(self::getTitle());
		$this->maniaControl->configurator->reopenMenu($player, $menuId);
	}

	/**
	 * @see \ManiaControl\Configurators\ConfiguratorMenu::getTitle()
	 */
	public function getTitle() {
		return 'Install Plugins';
	}
}