<?php

class ApiController extends Zend_Controller_Action
{

    public function init()
    {
        /* Initialize action controller here */
        $context = $this->_helper->getHelper('contextSwitch');
        $context->addActionContext('version', 'json')
                ->addActionContext('recorded-shows', 'json')
                ->addActionContext('upload-file', 'json')
                ->addActionContext('upload-recorded', 'json')
                ->addActionContext('media-monitor-setup', 'json')
                ->addActionContext('media-item-status', 'json')
                ->addActionContext('reload-metadata', 'json')
                ->addActionContext('list-all-files', 'json')
                ->addActionContext('list-all-watched-dirs', 'json')
                ->addActionContext('add-watched-dir', 'json')
                ->addActionContext('remove-watched-dir', 'json')
                ->addActionContext('set-storage-dir', 'json')
                ->initContext();
    }

    public function indexAction()
    {
        // action body
    }

    /**
     * Returns Airtime version. i.e "1.7.0-beta"
     *
     * First checks to ensure the correct API key was
     * supplied, then returns AIRTIME_VERSION as defined
     * in application/conf.php
     *
     * @return void
     *
     */
    public function versionAction()
    {
        global $CC_CONFIG;

        // disable the view and the layout
        $this->view->layout()->disableLayout();
        $this->_helper->viewRenderer->setNoRender(true);

        $api_key = $this->_getParam('api_key');
        if (!in_array($api_key, $CC_CONFIG["apiKey"]))
        {
            header('HTTP/1.0 401 Unauthorized');
            print 'You are not allowed to access this resource.';
            exit;
        }
        $jsonStr = json_encode(array("version"=>AIRTIME_VERSION));
        echo $jsonStr;
    }

    /**
     * Allows remote client to download requested media file.
     *
     * @return void
     *
     */
    public function getMediaAction()
    {
        global $CC_CONFIG;

        // disable the view and the layout
        $this->view->layout()->disableLayout();
        $this->_helper->viewRenderer->setNoRender(true);

        $api_key = $this->_getParam('api_key');
        $download = ("true" == $this->_getParam('download'));

        $logger = Logging::getLogger();
        
        if(!in_array($api_key, $CC_CONFIG["apiKey"]) && 
            is_null(Zend_Auth::getInstance()->getStorage()->read()))
        {
            header('HTTP/1.0 401 Unauthorized');
            print 'You are not allowed to access this resource.';
            $logger->info("401 Unauthorized");
            return;
        }

        $filename = $this->_getParam("file");
        $file_id = substr($filename, 0, strpos($filename, "."));
        if (ctype_alnum($file_id) && strlen($file_id) == 32) {
          $media = StoredFile::RecallByGunid($file_id);
          if ($media != null && !PEAR::isError($media)) {
            $filepath = $media->getFilePath();
            if(is_file($filepath)){
                // possibly use fileinfo module here in the future.
                // http://www.php.net/manual/en/book.fileinfo.php
                $ext = pathinfo($filename, PATHINFO_EXTENSION);
                if ($ext == "ogg")
                    header("Content-Type: audio/ogg");
                else if ($ext == "mp3")
                    header("Content-Type: audio/mpeg");
                if ($download){
                    //path_info breaks up a file path into seperate pieces of informaiton.
                    //We just want the basename which is the file name with the path
                    //information stripped away. We are using Content-Disposition to specify
                    //to the browser what name the file should be saved as.
                    $path_parts = pathinfo($media->getPropelOrm()->getDbFilepath());
                    header('Content-Disposition: attachment; filename="'.$path_parts['basename'].'"');
                }
                header("Content-Length: " . filesize($filepath));

                // !! binary mode !!
                $fp = fopen($filepath, 'rb');

                //We can have multiple levels of output buffering. Need to
                //keep looping until all have been disabled!!!
                //http://www.php.net/manual/en/function.ob-end-flush.php
                while (@ob_end_flush());

                fpassthru($fp);
                fclose($fp);

                //make sure to exit here so that no other output is sent.
                exit;                
            } else {
                $logger->err('Resource in database, but not in storage: "'.$filepath.'"');
            }
          } else {
            $logger->err('$media != null && !PEAR::isError($media)');
          }
      } else {
        $logger->err('ctype_alnum($file_id) && strlen($file_id) == 32');
      }
      header($_SERVER["SERVER_PROTOCOL"]." 404 Not Found");
      $logger->info("404 Not Found");
      return;
    }

    public function liveInfoAction()
    {
        if (Application_Model_Preference::GetAllow3rdPartyApi()){
            // disable the view and the layout
            $this->view->layout()->disableLayout();
            $this->_helper->viewRenderer->setNoRender(true);

            $date = new DateHelper;
            $timeNow = $date->getTimestamp();
            $result = array("env"=>APPLICATION_ENV,
                "schedulerTime"=>gmdate("Y-m-d H:i:s"),
                "currentShow"=>Show_DAL::GetCurrentShow($timeNow),
                "nextShow"=>Show_DAL::GetNextShows($timeNow, 5),
                "timezone"=> date("T"),
                "timezoneOffset"=> date("Z"));

            //echo json_encode($result);
            header("Content-type: text/javascript");
            echo $_GET['callback'].'('.json_encode($result).')';
        } else {
            header('HTTP/1.0 401 Unauthorized');
            print 'You are not allowed to access this resource. ';
            exit;
        }
    }

    public function weekInfoAction()
    {
        if (Application_Model_Preference::GetAllow3rdPartyApi()){
            // disable the view and the layout
            $this->view->layout()->disableLayout();
            $this->_helper->viewRenderer->setNoRender(true);

            $dow = array("sunday", "monday", "tuesday", "wednesday", "thursday", "friday", "saturday");

            $result = array();
            for ($i=0; $i<7; $i++){
                $result[$dow[$i]] = Show_DAL::GetShowsByDayOfWeek($i);
            }

            header("Content-type: text/javascript");
            echo $_GET['callback'].'('.json_encode($result).')';
        } else {
            header('HTTP/1.0 401 Unauthorized');
            print 'You are not allowed to access this resource. ';
            exit;
        }
    }

    public function scheduleAction()
    {
        global $CC_CONFIG;

        // disable the view and the layout
        $this->view->layout()->disableLayout();
        $this->_helper->viewRenderer->setNoRender(true);

        $api_key = $this->_getParam('api_key');

        if(!in_array($api_key, $CC_CONFIG["apiKey"]))
        {
            header('HTTP/1.0 401 Unauthorized');
            print 'You are not allowed to access this resource. ';
            exit;
        }

        PEAR::setErrorHandling(PEAR_ERROR_RETURN);

        $result = Schedule::GetScheduledPlaylists();
        echo json_encode($result);
    }

    public function notifyMediaItemStartPlayAction()
    {
        global $CC_CONFIG;

        // disable the view and the layout
        $this->view->layout()->disableLayout();
        $this->_helper->viewRenderer->setNoRender(true);

        $api_key = $this->_getParam('api_key');
        if(!in_array($api_key, $CC_CONFIG["apiKey"]))
        {
            header('HTTP/1.0 401 Unauthorized');
            print 'You are not allowed to access this resource.';
            exit;
        }

        $schedule_group_id = $this->_getParam("schedule_id");
        $media_id = $this->_getParam("media_id");
        $result = Schedule::UpdateMediaPlayedStatus($media_id);

        if (!PEAR::isError($result)) {
            echo json_encode(array("status"=>1, "message"=>""));
        } else {
            echo json_encode(array("status"=>0, "message"=>"DB Error:".$result->getMessage()));
        }
    }

    public function notifyScheduleGroupPlayAction()
    {
        global $CC_CONFIG;

        // disable the view and the layout
        $this->view->layout()->disableLayout();
        $this->_helper->viewRenderer->setNoRender(true);

        $api_key = $this->_getParam('api_key');
        if(!in_array($api_key, $CC_CONFIG["apiKey"]))
        {
            header('HTTP/1.0 401 Unauthorized');
            print 'You are not allowed to access this resource.';
            exit;
        }

        PEAR::setErrorHandling(PEAR_ERROR_RETURN);

        $schedule_group_id = $this->_getParam("schedule_id");
        if (is_numeric($schedule_group_id)) {
            $sg = new ScheduleGroup($schedule_group_id);
            if ($sg->exists()) {
                $result = $sg->notifyGroupStartPlay();
                if (!PEAR::isError($result)) {
                    echo json_encode(array("status"=>1, "message"=>""));
                    exit;
                } else {
                    echo json_encode(array("status"=>0, "message"=>"DB Error:".$result->getMessage()));
                    exit;
                }
            } else {
                echo json_encode(array("status"=>0, "message"=>"Schedule group does not exist: ".$schedule_group_id));
                exit;
            }
        } else {
            echo json_encode(array("status"=>0, "message"=>"Incorrect or non-numeric arguments given."));
            exit;
        }
    }

    public function recordedShowsAction()
    {
        global $CC_CONFIG;

        $api_key = $this->_getParam('api_key');
        if (!in_array($api_key, $CC_CONFIG["apiKey"]))
        {
            header('HTTP/1.0 401 Unauthorized');
            print 'You are not allowed to access this resource.';
            exit;
        }

        $today_timestamp = date("Y-m-d H:i:s");
        $now = new DateTime($today_timestamp);
        $end_timestamp = $now->add(new DateInterval("PT2H"));
        $end_timestamp = $end_timestamp->format("Y-m-d H:i:s");
        $this->view->shows = Show::getShows($today_timestamp, $end_timestamp, $excludeInstance=NULL, $onlyRecord=TRUE);


        $this->view->is_recording = false;

        $rows = Show_DAL::GetCurrentShow($today_timestamp);
        if (count($rows) > 0){
            $this->view->is_recording = ($rows[0]['record'] == 1);
        }
    }

    public function uploadFileAction()
    {
        global $CC_CONFIG;

        $api_key = $this->_getParam('api_key');
        if (!in_array($api_key, $CC_CONFIG["apiKey"]))
        {
            header('HTTP/1.0 401 Unauthorized');
            print 'You are not allowed to access this resource.';
            exit;
        }

        $upload_dir = ini_get("upload_tmp_dir");
        StoredFile::uploadFile($upload_dir);
    }

    public function uploadRecordedAction()
    {
        global $CC_CONFIG;

        $api_key = $this->_getParam('api_key');
        if (!in_array($api_key, $CC_CONFIG["apiKey"]))
        {
            header('HTTP/1.0 401 Unauthorized');
            print 'You are not allowed to access this resource.';
            exit;
        }

        //this file id is the recording for this show instance.
        $show_instance_id = $this->_getParam('showinstanceid');
        $file_id = $this->_getParam('fileid');

        $this->view->fileid = $file_id;
        $this->view->showinstanceid = $show_instance_id;

        
       	$showCanceled = false;
       	$file = StoredFile::Recall($file_id);
        //$show_instance  = $this->_getParam('show_instance');

        $show_name = "";
        try {
            $show_inst = new ShowInstance($show_instance_id);

            $show_inst->setRecordedFile($file_id);
            $show_name = $show_inst->getName();
            $show_genre = $show_inst->getGenre();
            $show_start_time = $show_inst->getShowStart();

         } catch (Exception $e){
            //we've reached here probably because the show was
            //cancelled, and therefore the show instance does not
            //exist anymore (ShowInstance constructor threw this error).
            //We've done all we can do (upload the file and put it in
            //the library), now lets just return.
            $showCanceled = true;
        }

		$tmpTitle = !(empty($show_name))?$show_name."-":"";
		$tmpTitle .= $file->getName();

		$file->setMetadataValue(MDATA_KEY_TITLE, $tmpTitle);

        if (!$showCanceled && Application_Model_Preference::GetDoSoundCloudUpload())
        {
        	for ($i=0; $i<$CC_CONFIG['soundcloud-connection-retries']; $i++) {

        		$show = new Show($show_inst->getShowId());
        		$description = $show->getDescription();
        		$hosts = $show->getHosts();

        		$tags = array_merge($hosts, array($show_name));

        		try {
        			$soundcloud = new ATSoundcloud();
        			$soundcloud_id = $soundcloud->uploadTrack($file->getFilePath(), $tmpTitle, $description, $tags, $show_start_time, $show_genre);
        			$show_inst->setSoundCloudFileId($soundcloud_id);
        			break;
        		}
        		catch (Services_Soundcloud_Invalid_Http_Response_Code_Exception $e) {
        			$code = $e->getHttpCode();
        			if(!in_array($code, array(0, 100))) {
        				break;
        			}
        		}

        		sleep($CC_CONFIG['soundcloud-connection-wait']);
        	}
        }

        $this->view->id = $file_id;
        
    }

    public function mediaMonitorSetupAction() {
        global $CC_CONFIG;

        // disable the view and the layout
        $this->view->layout()->disableLayout();
        $this->_helper->viewRenderer->setNoRender(true);

        $api_key = $this->_getParam('api_key');
        if (!in_array($api_key, $CC_CONFIG["apiKey"]))
        {
            header('HTTP/1.0 401 Unauthorized');
            print 'You are not allowed to access this resource.';
            exit;
        }
        
        $this->view->stor = MusicDir::getStorDir()->getDirectory();
    }

    public function reloadMetadataAction() {
        global $CC_CONFIG;

        $request = $this->getRequest();
        $api_key = $request->getParam('api_key');
        if (!in_array($api_key, $CC_CONFIG["apiKey"]))
        {
            header('HTTP/1.0 401 Unauthorized');
            print 'You are not allowed to access this resource.';
            exit;
        }

        $mode = $request->getParam('mode');
        $params = $request->getParams();

        $md = array();
        //extract all file metadata params from the request.
        foreach ($params as $key => $value) {
            if (preg_match('/^MDATA_KEY/', $key)) {
                $md[$key] = $value;
            }
        }

        if ($mode == "create") {
            $filepath = $md['MDATA_KEY_FILEPATH'];
            $file = StoredFile::RecallByFilepath($filepath);
            
            if (is_null($file)) {
                $file = StoredFile::Insert($md);
            } else {
                $this->view->error = "File already exists in Airtime.";
                return;
            }

            
            //Martin Konecny July 14th, 2011: The following commented out code is the way
            //we used to check for duplicates (by md5). Why are we checking by md5 and
            //not by filepath? I had to change this behaviour to check by filepath for the 
            //following reason:
            //File A is renamed, which creates a delete and create event. Because the create
            //event can be executed in parallel before the delete event completes, the create
            //event will fail because the md5 is still in the database. 
            /*
            $md5 = $md['MDATA_KEY_MD5'];
            $file = StoredFile::RecallByMd5($md5);
            if (is_null($file)) {
                $file = StoredFile::Insert($md);
            }
            else {
                $this->view->error = "File already exists in Airtime.";
                return;
            }
            */
        }
        else if ($mode == "modify") {
            $filepath = $md['MDATA_KEY_FILEPATH'];
            $filepath = str_replace("\\", "", $filepath);
            $file = StoredFile::RecallByFilepath($filepath);

            //File is not in database anymore.
            if (is_null($file)) {
                $this->view->error = "File does not exist in Airtime.";
                return;
            }
            //Updating a metadata change.
            else {
                $file->setMetadata($md);
            }
        }
        else if ($mode == "moved") {
            $md5 = $md['MDATA_KEY_MD5'];
            $file = StoredFile::RecallByMd5($md5);

            if (is_null($file)) {
                $this->view->error = "File doesn't exist in Airtime.";
                return;
            }
            else {
                $filepath = $md['MDATA_KEY_FILEPATH'];
                $filepath = str_replace("\\", "", $filepath);
                $file->setFilePath($filepath);
                //$file->setMetadata($md);
            }
        }
        else if ($mode == "delete") {
            $filepath = $md['MDATA_KEY_FILEPATH'];
            $filepath = str_replace("\\", "", $filepath);
            $file = StoredFile::RecallByFilepath($filepath);

            if (is_null($file)) {
                $this->view->error = "File doesn't exist in Airtime.";
                return;
            }
            else {
                $file->delete();
            }
        }

        $this->view->id = $file->getId();
    }
    
    public function listAllFilesAction() {
        global $CC_CONFIG;

        $request = $this->getRequest();
        $api_key = $request->getParam('api_key');
        if (!in_array($api_key, $CC_CONFIG["apiKey"]))
        {
            header('HTTP/1.0 401 Unauthorized');
            print 'You are not allowed to access this resource.';
            exit;
        }
        $dir_id = $request->getParam('dir_id');
        
        $this->view->files = StoredFile::listAllFiles($dir_id);
    }
    
    public function listAllWatchedDirsAction() {
        global $CC_CONFIG;

        $request = $this->getRequest();
        $api_key = $request->getParam('api_key');
        if (!in_array($api_key, $CC_CONFIG["apiKey"]))
        {
            header('HTTP/1.0 401 Unauthorized');
            print 'You are not allowed to access this resource.';
            exit;
        }
        
        $result = array();
        
        $arrWatchedDirs = MusicDir::getWatchedDirs();
        $storDir = MusicDir::getStorDir();
        
        $result[$storDir->getId()] = $storDir->getDirectory();
        
        foreach ($arrWatchedDirs as $watchedDir){
            $result[$watchedDir->getId()] = $watchedDir->getDirectory();
        }
        
        $this->view->dirs = $result;
    }
    
    public function addWatchedDirAction() {
        global $CC_CONFIG;

        $request = $this->getRequest();
        $api_key = $request->getParam('api_key');
        $path = base64_decode($request->getParam('path'));
        
        if (!in_array($api_key, $CC_CONFIG["apiKey"]))
        {
            header('HTTP/1.0 401 Unauthorized');
            print 'You are not allowed to access this resource.';
            exit;
        }
        
        $this->view->msg = MusicDir::addWatchedDir($path);
    }
    
    public function removeWatchedDirAction() {
        global $CC_CONFIG;

        $request = $this->getRequest();
        $api_key = $request->getParam('api_key');
        $path = base64_decode($request->getParam('path'));
        
        if (!in_array($api_key, $CC_CONFIG["apiKey"]))
        {
            header('HTTP/1.0 401 Unauthorized');
            print 'You are not allowed to access this resource.';
            exit;
        }
        
        $this->view->msg = MusicDir::removeWatchedDir($path);
    }
    
    public function setStorageDirAction() {
        global $CC_CONFIG;

        $request = $this->getRequest();
        $api_key = $request->getParam('api_key');
        $path = base64_decode($request->getParam('path'));
        
        if (!in_array($api_key, $CC_CONFIG["apiKey"]))
        {
            header('HTTP/1.0 401 Unauthorized');
            print 'You are not allowed to access this resource.';
            exit;
        }
        
        $this->view->msg = MusicDir::setStorDir($path);
    }
}