<?php

class Application_Service_HistoryService
{
	private $con;
	private $timezone;

	const TEMPLATE_TYPE_ITEM = "item";
	const TEMPLATE_TYPE_FILE = "file";

	public function __construct()
	{
		$this->con = isset($con) ? $con : Propel::getConnection(CcPlayoutHistoryPeer::DATABASE_NAME);
		$this->timezone = Application_Model_Preference::GetTimezone();
	}

	public function getSupportedTemplateTypes()
	{
		return array(self::TEMPLATE_TYPE_ITEM, self::TEMPLATE_TYPE_FILE);
	}

	//opts is from datatables.
	public function getPlayedItemData($startDT, $endDT, $opts, $instanceId=null)
	{
		$mainSqlQuery = "";
		$paramMap = array();
		$sqlTypes = $this->getSqlTypes();

		$start = $startDT->format(DEFAULT_TIMESTAMP_FORMAT);
		$end = $endDT->format(DEFAULT_TIMESTAMP_FORMAT);

		$template = $this->getConfiguredItemTemplate();
		$fields = $template["fields"];
		$required = $this->mandatoryItemFields();

		$fields_filemd = array();
		$filemd_keys = array();
		$fields_general = array();
		$general_keys = array();

		foreach ($fields as $index=>$field) {

			if (in_array($field["name"], $required)) {
				continue;
			}

			if ($field["isFileMd"]) {
				$fields_filemd[] = $field;
				$filemd_keys[] = $field["name"];
			}
			else {
				$fields_general[] = $field;
				$general_keys[] = $field["name"];
			}
		}

		//-----------------------------------------------------------------------
		//Using the instance_id to filter the data.


		$historyRange = "(".
		"SELECT history.starts, history.ends, history.id AS history_id, history.instance_id".
		" FROM cc_playout_history as history";

		if (isset($instanceId)) {
		    $historyRange.= " WHERE history.instance_id = :instance";
		    $paramMap["instance"] = $instanceId;
		}
		else {
		    $historyRange.= " WHERE history.starts >= :starts and history.starts < :ends";
		    $paramMap["starts"] = $start;
		    $paramMap["ends"] = $end;
		}

		$historyRange.= ") AS history_range";

		$manualMeta = "(".
		"SELECT %KEY%.value AS %KEY%, %KEY%.history_id".
		" FROM (".
		" SELECT * from cc_playout_history_metadata AS phm WHERE phm.key = :meta_%KEY%".
		" ) AS %KEY%".
		" ) AS %KEY%_filter";

		$mainSelect = array(
	        "history_range.starts",
	        "history_range.ends",
	        "history_range.history_id",
		    "history_range.instance_id"
		);
		$mdFilters = array();

		$numFileMdFields = count($fields_filemd);

		if ($numFileMdFields > 0) {

			//these 3 selects are only needed if $fields_filemd has some fields.
			$fileSelect = array("history_file.history_id");
			$nonNullFileSelect = array("file.id as file_id");
			$nullFileSelect = array("null_file.history_id");

			$fileMdFilters = array();

			//populate the different dynamic selects with file info.
			for ($i = 0; $i < $numFileMdFields; $i++) {

				$field = $fields_filemd[$i];
				$key = $field["name"];
				$type = $sqlTypes[$field["type"]];

				$fileSelect[] = "file_md.{$key}::{$type}";
				$nonNullFileSelect[] = "file.{$key}::{$type}";
				$nullFileSelect[] = "{$key}_filter.{$key}::{$type}";
				$mainSelect[] = "file_info.{$key}::{$type}";

				$fileMdFilters[] = str_replace("%KEY%", $key, $manualMeta);
				$paramMap["meta_{$key}"] = $key;
			}

			//the files associated with scheduled playback in Airtime.
			$historyFile = "(".
			"SELECT history.id AS history_id, history.file_id".
			" FROM cc_playout_history AS history".
			" WHERE history.file_id IS NOT NULL".
			") AS history_file";

			$fileMd = "(".
			"SELECT %NON_NULL_FILE_SELECT%".
			" FROM cc_files AS file".
			") AS file_md";

			$fileMd = str_replace("%NON_NULL_FILE_SELECT%", join(", ", $nonNullFileSelect), $fileMd);

			//null files are from manually added data (filling in webstream info etc)
			$nullFile = "(".
			"SELECT history.id AS history_id".
			" FROM cc_playout_history AS history".
			" WHERE history.file_id IS NULL".
			") AS null_file";


			//----------------------------------
			//building the file inner query

			$fileSqlQuery =
			"SELECT ".join(", ", $fileSelect).
			" FROM {$historyFile}".
			" LEFT JOIN {$fileMd} USING (file_id)".
			" UNION".
			" SELECT ".join(", ", $nullFileSelect).
			" FROM {$nullFile}";

			foreach ($fileMdFilters as $filter) {

				$fileSqlQuery.=
				" LEFT JOIN {$filter} USING(history_id)";
			}

		}

		for ($i = 0, $len = count($fields_general); $i < $len; $i++) {

			$field = $fields_general[$i];
			$key = $field["name"];
			$type = $sqlTypes[$field["type"]];

			$mdFilters[] = str_replace("%KEY%", $key, $manualMeta);
			$paramMap["meta_{$key}"] = $key;
			$mainSelect[] = "{$key}_filter.{$key}::{$type}";
		}

		$mainSqlQuery.=
		"SELECT ".join(", ", $mainSelect).
		" FROM {$historyRange}";

		if (isset($fileSqlQuery)) {

			$mainSqlQuery.=
			" LEFT JOIN ( {$fileSqlQuery} ) as file_info USING(history_id)";
		}

		foreach ($mdFilters as $filter) {

			$mainSqlQuery.=
			" LEFT JOIN {$filter} USING(history_id)";
		}

		//----------------------------------------------------------------------
		//need to count the total rows to tell Datatables.
		$stmt = $this->con->prepare($mainSqlQuery);
		foreach ($paramMap as $param => $v) {
			$stmt->bindValue($param, $v);
		}

		if ($stmt->execute()) {
			$totalRows = $stmt->rowCount();
		}
		else {
			$msg = implode(',', $stmt->errorInfo());
			throw new Exception("Error: $msg");
		}

		//------------------------------------------------------------------------
		//Using Datatables parameters to sort the data.

        if (empty($opts["iSortingCols"])) {
		    $orderBys = array();
        } else {
            $numOrderColumns = $opts["iSortingCols"];
            $orderBys = array();

            for ($i = 0; $i < $numOrderColumns; $i++) {

                $colNum = $opts["iSortCol_".$i];
                $key = $opts["mDataProp_".$colNum];
                $sortDir = $opts["sSortDir_".$i];

                if (in_array($key, $required)) {

                    $orderBys[] = "history_range.{$key} {$sortDir}";
                }
                else if (in_array($key, $filemd_keys)) {

                    $orderBys[] = "file_info.{$key} {$sortDir}";
                }
                else if (in_array($key, $general_keys)) {

                    $orderBys[] = "{$key}_filter.{$key} {$sortDir}";
                }
                else {
                    //throw new Exception("Error: $key is not part of the template.");
                }
            }
		}

		if (count($orderBys) > 0) {

			$orders = join(", ", $orderBys);

			$mainSqlQuery.=
			" ORDER BY {$orders}";
		}

		//---------------------------------------------------------------
		//using Datatables parameters to add limits/offsets

		 $displayLength = empty($opts["iDisplayLength"]) ? -1 : intval($opts["iDisplayLength"]);
		//limit the results returned.
		if ($displayLength !== -1) {
			$mainSqlQuery.=
			" OFFSET :offset LIMIT :limit";

			$paramMap["offset"] = intval($opts["iDisplayStart"]);
			$paramMap["limit"] = $displayLength;
		}

		$stmt = $this->con->prepare($mainSqlQuery);
		foreach ($paramMap as $param => $v) {
			$stmt->bindValue($param, $v);
		}

		$rows = array();
		if ($stmt->execute()) {
			$rows = $stmt->fetchAll(PDO::FETCH_ASSOC);
		}
		else {
			$msg = implode(',', $stmt->errorInfo());
			throw new Exception("Error: $msg");
		}

		//-----------------------------------------------------------------------
		//processing results.

		$timezoneUTC = new DateTimeZone("UTC");
		$timezoneLocal = new DateTimeZone($this->timezone);

		$boolCast = array();
		foreach ($fields as $index=>$field) {

			if ($field["type"] == TEMPLATE_BOOLEAN) {
				$boolCast[] = $field;
			}
		}

		foreach ($rows as $index => &$result) {

			foreach ($boolCast as $field) {
				$result[$field['label']] = (bool) $result[$field['name']];
			}

			//need to display the results in the station's timezone.
			$dateTime = new DateTime($result["starts"], $timezoneUTC);
			$dateTime->setTimezone($timezoneLocal);
			$result["starts"] = $dateTime->format(DEFAULT_TIMESTAMP_FORMAT);

			//if ends is null we don't want it to default to "now"
			if (isset($result["ends"])) {
				$dateTime = new DateTime($result["ends"], $timezoneUTC);
				$dateTime->setTimezone($timezoneLocal);
				$result["ends"] = $dateTime->format(DEFAULT_TIMESTAMP_FORMAT);
			}

			if (isset($result[MDATA_KEY_DURATION])) {
				$formatter = new LengthFormatter($result[MDATA_KEY_DURATION]);
				$result[MDATA_KEY_DURATION] = $formatter->format();
			}

			//need to add a checkbox..
			$result["checkbox"] = "";

			//$unicodeChar = '\u2612';
			//$result["new"] = json_decode('"'.$unicodeChar.'"');
			//$result["new"] = "U+2612";
		}

		return array(
			"sEcho" => empty($opts["sEcho"]) ? null : intval($opts["sEcho"]),
			//"iTotalDisplayRecords" => intval($totalDisplayRows),
			"iTotalDisplayRecords" => intval($totalRows),
			"iTotalRecords" => intval($totalRows),
			"history" => $rows
		);
	}

	public function getFileSummaryData($startDT, $endDT, $opts)
	{
		$select = array (
			"summary.played",
			"summary.file_id",
			"summary.".MDATA_KEY_TITLE,
			"summary.".MDATA_KEY_CREATOR
		);

		$mainSqlQuery = "";
		$paramMap = array();
		$start = $startDT->format(DEFAULT_TIMESTAMP_FORMAT);
		$end = $endDT->format(DEFAULT_TIMESTAMP_FORMAT);

		$paramMap["starts"] = $start;
		$paramMap["ends"] = $end;

		$template = $this->getConfiguredFileTemplate();
		$fields = $template["fields"];
		$required = $this->mandatoryFileFields();

		foreach ($fields as $index=>$field) {

			$key = $field["name"];

			if (in_array($field["name"], $required)) {
				continue;
			}

			$select[] = "summary.{$key}";
		}

		$fileSummaryTable = "((
			SELECT COUNT(history.file_id) as played, history.file_id as file_id
			FROM cc_playout_history AS history
			WHERE history.starts >= :starts AND history.starts < :ends
			AND history.file_id IS NOT NULL
			GROUP BY history.file_id
		) AS playout
		LEFT JOIN cc_files AS file ON (file.id = playout.file_id)) AS summary";

		$mainSqlQuery.=
		"SELECT ".join(", ", $select).
		" FROM {$fileSummaryTable}";

		//-------------------------------------------------------------------------
		//need to count the total rows to tell Datatables.
		$stmt = $this->con->prepare($mainSqlQuery);
		foreach ($paramMap as $param => $v) {
			$stmt->bindValue($param, $v);
		}

		if ($stmt->execute()) {
			$totalRows = $stmt->rowCount();
		}
		else {
			$msg = implode(',', $stmt->errorInfo());
			throw new Exception("Error: $msg");
		}

		//------------------------------------------------------------------------
		//Using Datatables parameters to sort the data.

		$numOrderColumns = $opts["iSortingCols"];
		$orderBys = array();

		for ($i = 0; $i < $numOrderColumns; $i++) {

			$colNum = $opts["iSortCol_".$i];
			$key = $opts["mDataProp_".$colNum];
			$sortDir = $opts["sSortDir_".$i];

			$orderBys[] = "summary.{$key} {$sortDir}";
		}

		if ($numOrderColumns > 0) {

			$orders = join(", ", $orderBys);

			$mainSqlQuery.=
			" ORDER BY {$orders}";
		}

		//------------------------------------------------------------
		//using datatables params to add limits/offsets
		$displayLength = intval($opts["iDisplayLength"]);
		if ($displayLength !== -1) {
			$mainSqlQuery.=
			" OFFSET :offset LIMIT :limit";

			$paramMap["offset"] = $opts["iDisplayStart"];
			$paramMap["limit"] = $displayLength;
		}

		$stmt = $this->con->prepare($mainSqlQuery);
		foreach ($paramMap as $param => $v) {
			$stmt->bindValue($param, $v);
		}

		$rows = array();
		if ($stmt->execute()) {
			$rows = $stmt->fetchAll(PDO::FETCH_ASSOC);
		}
		else {
			$msg = implode(',', $stmt->errorInfo());
			throw new Exception("Error: $msg");
		}

		//-----------------------------------------------------------------
		//processing the results
		foreach ($rows as &$row) {
			if (isset($row[MDATA_KEY_DURATION])) {
				$formatter = new LengthFormatter($row[MDATA_KEY_DURATION]);
				$row[MDATA_KEY_DURATION] = $formatter->format();
			}
		}

		return array(
			"sEcho" => intval($opts["sEcho"]),
			//"iTotalDisplayRecords" => intval($totalDisplayRows),
			"iTotalDisplayRecords" => intval($totalRows),
			"iTotalRecords" => intval($totalRows),
			"history" => $rows
		);
	}

	public function getShowList($startDT, $endDT, $userId = null)
	{
        if (empty($userId)) {
		    $user = Application_Model_User::getCurrentUser();
        } else {
            $user = new Application_Model_User($userId);
        }
		$shows = Application_Model_Show::getShows($startDT, $endDT);

		Logging::info($startDT->format(DEFAULT_TIMESTAMP_FORMAT));
		Logging::info($endDT->format(DEFAULT_TIMESTAMP_FORMAT));

		Logging::info($shows);

		//need to filter the list to only their shows
		if ((!empty($user)) && ($user->isHost())) {

			$showIds = array();

			foreach ($shows as $show) {
				$showIds[] = $show["show_id"];
			}

			$showIds = array_unique($showIds);
			Logging::info($showIds);

			$hostRecords = CcShowHostsQuery::create()
				->filterByDbHost($user->getId())
				->filterByDbShow($showIds)
				->find($this->con);

			$filteredShowIds = array();

			foreach($hostRecords as $record) {
				$filteredShowIds[] = $record->getDbShow();
			}

			Logging::info($filteredShowIds);

			$filteredShows = array();

			foreach($shows as $show) {
				if (in_array($show["show_id"], $filteredShowIds)) {
					$filteredShows[] = $show;
				}
			}
		}
		else {
			$filteredShows = $shows;
		}

		$timezoneUTC = new DateTimeZone("UTC");
		$timezoneLocal = new DateTimeZone($this->timezone);

		foreach ($filteredShows as &$result) {

			//need to display the results in the station's timezone.
			$dateTime = new DateTime($result["starts"], $timezoneUTC);
			$dateTime->setTimezone($timezoneLocal);
			$result["starts"] = $dateTime->format(DEFAULT_TIMESTAMP_FORMAT);

			$dateTime = new DateTime($result["ends"], $timezoneUTC);
			$dateTime->setTimezone($timezoneLocal);
			$result["ends"] = $dateTime->format(DEFAULT_TIMESTAMP_FORMAT);

		}

		return $filteredShows;
	}

	public function insertWebstreamMetadata($schedId, $startDT, $data) {

		$this->con->beginTransaction();

		try {

			$item = CcScheduleQuery::create()->findPK($schedId, $this->con);

			//TODO figure out how to combine these all into 1 query.
			$showInstance = $item->getCcShowInstances($this->con);
			$show = $showInstance->getCcShow($this->con);

			$webstream = $item->getCcWebstream($this->con);

			$metadata = array();
			$metadata["showname"] = $show->getDbName();
			$metadata[MDATA_KEY_TITLE] = $data->title;
			$metadata[MDATA_KEY_CREATOR] = $webstream->getDbName();

			$history = new CcPlayoutHistory();
			$history->setDbStarts($startDT);
			$history->setDbEnds(null);
			$history->setDbInstanceId($item->getDbInstanceId());

			foreach ($metadata as $key => $val) {
				$meta = new CcPlayoutHistoryMetaData();
				$meta->setDbKey($key);
				$meta->setDbValue($val);

				$history->addCcPlayoutHistoryMetaData($meta);
			}

			$history->save($this->con);

			$this->con->commit();
		}
		catch (Exception $e) {
			$this->con->rollback();
			throw $e;
		}
	}

	public function insertPlayedItem($schedId) {

		$this->con->beginTransaction();

		try {

			$item = CcScheduleQuery::create()->findPK($schedId, $this->con);
			if (is_null($item)) {
			    throw new Exception("Invalid schedule id: ".$schedId);
			}

			//TODO figure out how to combine these all into 1 query.
			$showInstance = $item->getCcShowInstances($this->con);
			$show = $showInstance->getCcShow($this->con);

			$fileId = $item->getDbFileId();

			//don't add webstreams
			if (isset($fileId)) {

				$metadata = array();
				$metadata["showname"] = $show->getDbName();

				$instanceEnd = $showInstance->getDbEnds(null);
				$itemEnd = $item->getDbEnds(null);
				$recordStart = $item->getDbStarts(null);
				$recordEnd = ($instanceEnd < $itemEnd) ? $instanceEnd : $itemEnd;

				//first check if this is a duplicate
				// (caused by restarting liquidsoap)

				$prevRecord = CcPlayoutHistoryQuery::create()
					->filterByDbStarts($recordStart)
					->filterByDbEnds($recordEnd)
					->filterByDbFileId($fileId)
					->findOne($this->con);

				if (empty($prevRecord)) {

					$history = new CcPlayoutHistory();
					$history->setDbFileId($fileId);
					$history->setDbStarts($recordStart);
					$history->setDbEnds($recordEnd);
					$history->setDbInstanceId($item->getDbInstanceId());

					foreach ($metadata as $key => $val) {
						$meta = new CcPlayoutHistoryMetaData();
						$meta->setDbKey($key);
						$meta->setDbValue($val);

						$history->addCcPlayoutHistoryMetaData($meta);
					}

					$history->save($this->con);
					$this->con->commit();
				}
			}
		}
		catch (Exception $e) {
			$this->con->rollback();
			throw $e;
		}
	}

	/* id is an id in cc_playout_history */
	public function makeHistoryItemForm($id, $populate=false) {

		try {
			$form = new Application_Form_EditHistoryItem();
			$template = $this->getConfiguredItemTemplate();
			$required = $this->mandatoryItemFields();
			$form->createFromTemplate($template["fields"], $required);

			if ($populate) {
				$formValues = array();

				$historyRecord = CcPlayoutHistoryQuery::create()->findPk($id, $this->con);
				$file = $historyRecord->getCcFiles($this->con);
				$instance = $historyRecord->getCcShowInstances($this->con);

				if (isset($instance)) {
				    $show = $instance->getCcShow($this->con);
				    $selOpts = array();
				    $instance_id = $instance->getDbId();
				    $selOpts[$instance_id] = $show->getDbName();
				    $form->populateShowInstances($selOpts, $instance_id);
				}

				if (isset($file)) {
					$f = Application_Model_StoredFile::createWithFile($file, $this->con);
					$filemd = $f->getDbColMetadata();
				}
				$metadata = array();
				$mds = $historyRecord->getCcPlayoutHistoryMetaDatas();
				foreach ($mds as $md) {
					$metadata[$md->getDbKey()] = $md->getDbValue();
				}

				$prefix = Application_Form_EditHistoryItem::ID_PREFIX;
				$formValues["{$prefix}id"] = $id;

				foreach($template["fields"] as $index => $field) {

					$key = $field["name"];
					$value = "";

					if (in_array($key, $required)) {

						$method = "getDb".ucfirst($key);
						$value = $historyRecord->$method();
					}
					else if (isset($filemd) && $field["isFileMd"]) {

						$value = $filemd[$key];
					}
					else if (isset($metadata[$key])) {
						$value = $metadata[$key];
					}

					//need to convert to the station's local time first.
					if ($field["type"] == TEMPLATE_DATETIME && !is_null($value)) {
						$timezoneUTC = new DateTimeZone("UTC");
						$timezoneLocal = new DateTimeZone($this->timezone);

						$dateTime = new DateTime($value, $timezoneUTC);
						$dateTime->setTimezone($timezoneLocal);
						$value = $dateTime->format(DEFAULT_TIMESTAMP_FORMAT);
					}

					$formValues["$prefix{$key}"] = $value;
				}

				$form->populate($formValues);
			}

			return $form;
		}
		catch (Exception $e) {
			Logging::info($e);
			throw $e;
		}
	}

	/* id is an id in cc_files */
	public function makeHistoryFileForm($id) {

	    try {
		    $form = new Application_Form_EditHistoryFile();
			$template = $this->getConfiguredFileTemplate();
			$required = $this->mandatoryFileFields();
			$form->createFromTemplate($template["fields"], $required);

		    $file = Application_Model_StoredFile::RecallById($id, $this->con);
		    $md = $file->getDbColMetadata();

		    $prefix = Application_Form_EditHistoryFile::ID_PREFIX;
		    $formValues = array();
		    $formValues["{$prefix}id"] = $id;

		    foreach($template["fields"] as $index => $field) {

		    	$key = $field["name"];

		    	if (in_array($key, $required)) {
		    		continue;
		    	}

		    	$value = $md[$key];
		    	$formValues["$prefix{$key}"] = $value;
		    }

		    $form->populate($formValues);

		    return $form;
	    }
	    catch (Exception $e) {
	        Logging::info($e);
	        throw $e;
	    }
	}

	public function populateTemplateFile($values, $id) {

		$this->con->beginTransaction();

		try {

			$file = Application_Model_StoredFile::RecallById($id, $this->con);

			$prefix = Application_Form_EditHistoryFile::ID_PREFIX;
			$prefix_len = strlen($prefix);
			$templateValues = $values[$prefix."template"];

			$md = array();

			foreach ($templateValues as $index => $value) {

				$key = substr($index, $prefix_len);
				$md[$key] = $value;
			}

			$file->setDbColMetadata($md);
			$this->con->commit();
		}
		catch (Exception $e) {
    		$this->con->rollback();
    		throw $e;
    	}
	}

	public function populateTemplateItem($values, $id=null, $instance_id=null) {

		$this->con->beginTransaction();

		try {
		    $template = $this->getConfiguredItemTemplate();
		    $prefix = Application_Form_EditHistoryItem::ID_PREFIX;

		    if (isset($id)) {
		    	$historyRecord = CcPlayoutHistoryQuery::create()->findPk($id, $this->con);
		    }
		    else {
		    	$historyRecord = new CcPlayoutHistory();
		    }

		    if (isset($instance_id)) {
		    	$historyRecord->setDbInstanceId($instance_id);
		    }

		    $timezoneUTC = new DateTimeZone("UTC");
		    $timezoneLocal = new DateTimeZone($this->timezone);

	    	$dateTime = new DateTime($values[$prefix."starts"], $timezoneLocal);
	    	$dateTime->setTimezone($timezoneUTC);
	    	$historyRecord->setDbStarts($dateTime->format(DEFAULT_TIMESTAMP_FORMAT));

	    	$dateTime = new DateTime($values[$prefix."ends"], $timezoneLocal);
	    	$dateTime->setTimezone($timezoneUTC);
	    	$historyRecord->setDbEnds($dateTime->format(DEFAULT_TIMESTAMP_FORMAT));

	    	$templateValues = $values[$prefix."template"];

	    	$file = $historyRecord->getCcFiles();

	    	$md = array();
	    	$metadata = array();
	    	$fields = $template["fields"];
	    	$required = $this->mandatoryItemFields();
	    	$phpCasts = $this->getPhpCasts();

	    	for ($i = 0, $len = count($fields); $i < $len; $i++) {

	    	    $field = $fields[$i];
	    	    $key = $field["name"];

	    	    //required is delt with before this loop.
	    	    if (in_array($key, $required)) {
	    	    	continue;
	    	    }

	    	    $isFileMd = $field["isFileMd"];
	    	    $entry = $phpCasts[$field["type"]]($templateValues[$prefix.$key]);

	    	    if ($isFileMd && isset($file)) {
	    	        Logging::info("adding metadata associated to a file for {$key} = {$entry}");
	    	        $md[$key] = $entry;
	    	    }
	    	    else {
	    	    	Logging::info("adding metadata for {$key} = {$entry}");
                    $metadata[$key] = $entry;
	    	    }
	    	}

	    	if (count($md) > 0) {
	    		$f = Application_Model_StoredFile::createWithFile($file, $this->con);
	    		$f->setDbColMetadata($md);
	    	}

	    	//Use this array to update existing values.
	    	$mds = $historyRecord->getCcPlayoutHistoryMetaDatas();
	    	foreach ($mds as $md) {
	    		$prevmd[$md->getDbKey()] = $md;
	    	}
	    	foreach ($metadata as $key => $val) {

	    		if (isset($prevmd[$key])) {
	    			$meta = $prevmd[$key];
	    			$meta->setDbValue($val);
	    		}
	    		else {
	    			$meta = new CcPlayoutHistoryMetaData();
	    			$meta->setDbKey($key);
	    			$meta->setDbValue($val);

	    			$historyRecord->addCcPlayoutHistoryMetaData($meta);
	    		}
	    	}

	    	$historyRecord->save($this->con);
	    	$this->con->commit();
    	}
    	catch (Exception $e) {
    		$this->con->rollback();
    		throw $e;
    	}
	}

	//start,end timestamp strings in local timezone.
	public function populateShowInstances($start, $end) {
		$timezoneLocal = new DateTimeZone($this->timezone);

		$startDT = new DateTime($start, $timezoneLocal);
		$endDT = new DateTime($end, $timezoneLocal);

		$shows = $this->getShowList($startDT, $endDT);

		$select = array();

		foreach ($shows as &$show) {
			$select[$show["instance_id"]] = $show["name"];
		}

		return $select;
	}

	private function validateHistoryItem($instanceId, $form) {

	    /*
	    $userService = new Application_Service_UserService();
	    $currentUser = $userService->getCurrentUser();

	    if (!$currentUser->isAdminOrPM()) {
	        if (empty($instance_id) ) {

	        }
	    }
	    */

	    $valid = true;

	    $recordStartsEl = $form->getElement("his_item_starts");
	    $recordStarts = $recordStartsEl->getValue();
	    $recordEndsEl = $form->getElement("his_item_starts");
	    $recordEnds = $recordEndsEl->getValue();

	    $timezoneLocal = new DateTimeZone($this->timezone);

	    $startDT = new DateTime($recordStarts, $timezoneLocal);
	    $endDT = new DateTime($recordEnds, $timezoneLocal);

	    if ($recordStarts > $recordEnds) {
	        $valid = false;
	        $recordEndsEl->addErrorMessage("End time must be after start time");
	    }

	    if (isset($instanceId)) {

	        $instance = CcShowInstancesQuery::create()->findPk($instanceId, $this->con);
	        $inStartsDT = $instance->getDbStarts(null);
	        $inEndsDT = $instance->getDbEnds(null);

	        if ($startDT < $inStartsDT) {
	            $valid = false;
	            $form->addErrorMessage("History item begins before show.");
	        }
	        else if ($startDT > $inEndsDT) {
	            $valid = false;
	            $form->addErrorMessage("History item begins after show.");
	        }
	    }

	    return $valid;
	}

	public function createPlayedItem($data) {

		try {
			$form = $this->makeHistoryItemForm(null);
			$history_id = $form->getElement("his_item_id");
			$instanceId = isset($data["instance_id"]) ? $data["instance_id"] : null;
			$json = array();

	        if ($form->isValid($data) && $this->validateHistoryItem($instanceId, $form)) {

	        	$history_id->setIgnore(true);
	        	$values = $form->getValues();

	        	$this->populateTemplateItem($values, null, $instanceId);
	        }
	        else {
	        	$json["form"] = $form;
	        }

	        return $json;
		}
		catch (Exception $e) {
			throw $e;
		}
	}

	/* id is an id in cc_playout_history */
	public function editPlayedItem($data) {

		try {
			$id = $data["his_item_id"];
			$instanceId = isset($data["instance_id"]) ? $data["instance_id"] : null;
			$form = $this->makeHistoryItemForm($id);
			$history_id = $form->getElement("his_item_id");
			$history_id->setRequired(true);

			$json = array();

			if ($form->isValid($data) && $this->validateHistoryItem($instanceId, $form)) {

			    $history_id->setIgnore(true);
	        	$values = $form->getValues();
	        	$this->populateTemplateItem($values, $id, $instanceId);
	        }
	        else {
	        	$json["form"] = SecurityHelper::htmlescape_recursive($form);
	        }

	        return $json;
		}
		catch (Exception $e) {
			throw $e;
		}
	}

	/* id is an id in cc_files */
	public function editPlayedFile($data) {

		try {
			$id = $data["his_file_id"];
	        $form = $form = $this->makeHistoryFileForm($id);
	        $history_id = $form->getElement("his_file_id");
	        $history_id->setRequired(true);

			$json = array();

	        if ($form->isValid($data)) {
	        	$history_id->setIgnore(true);
	        	$values = $form->getValues();

	            $this->populateTemplateFile($values, $id);
	        }
	        else {
	        	$json["error"] = $form->getErrorMessages();
				$json["error"] = SecurityHelper::htmlescape_recursive($json["error"]);
	        }

	        return $json;

	        $this->con->commit();
		}
		catch (Exception $e) {
			$this->con->rollback();
			Logging::info($e);
			throw $e;
		}

        return $json;
	}

	/* id is an id in cc_playout_history */
	public function deletePlayedItem($id) {

		$this->con->beginTransaction();

		try {

			$record = CcPlayoutHistoryQuery::create()->findPk($id, $this->con);
			$record->delete($this->con);

			$this->con->commit();
		}
		catch (Exception $e) {
			$this->con->rollback();
			Logging::info($e);
			throw $e;
		}
	}

	/* id is an id in cc_playout_history */
	public function deletePlayedItems($ids) {

		$this->con->beginTransaction();

		try {

			$records = CcPlayoutHistoryQuery::create()->findPks($ids, $this->con);
			$records->delete($this->con);

			$this->con->commit();
		}
		catch (Exception $e) {
			$this->con->rollback();
			Logging::info($e);
			throw $e;
		}
	}


	//---------------- Following code is for History Templates --------------------------//

	public function getFieldTypes() {

	    $fields = array(
    	    //TEMPLATE_DATE,
    	    //TEMPLATE_TIME,
    	    //TEMPLATE_DATETIME,
    	    TEMPLATE_STRING,
    	    TEMPLATE_BOOLEAN,
    	    TEMPLATE_INT,
    	    TEMPLATE_FLOAT,
	    );

	    return $fields;
	}

	private function getPhpCasts() {

		$fields = array(
			TEMPLATE_DATE => "strval",
			TEMPLATE_TIME => "strval",
			TEMPLATE_DATETIME => "strval",
			TEMPLATE_STRING => "strval",
			TEMPLATE_BOOLEAN => "intval", //boolval only exists in php 5.5+
			TEMPLATE_INT => "intval",
			TEMPLATE_FLOAT => "floatval",
		);

		return $fields;
	}

	private function getSqlTypes() {

		$fields = array(
			TEMPLATE_DATE => "date",
			TEMPLATE_TIME => "time",
			TEMPLATE_DATETIME => "datetime",
			TEMPLATE_STRING => "text",
			TEMPLATE_BOOLEAN => "boolean",
			TEMPLATE_INT => "integer",
			TEMPLATE_FLOAT => "float",
		);

		return $fields;
	}

	public function getFileMetadataTypes() {

		$fileMD = array(
			array("name"=> MDATA_KEY_TITLE, "label"=> _("Title"), "type"=> TEMPLATE_STRING),
			array("name"=> MDATA_KEY_CREATOR, "label"=> _("Creator"), "type"=> TEMPLATE_STRING),
			array("name"=> MDATA_KEY_SOURCE, "label"=> _("Album"), "type"=> TEMPLATE_STRING),
			array("name"=> MDATA_KEY_DURATION, "label"=> _("Length"), "type"=> TEMPLATE_STRING),
			array("name"=> MDATA_KEY_GENRE, "label"=> _("Genre"), "type"=> TEMPLATE_STRING),
			array("name"=> MDATA_KEY_MOOD, "label"=> _("Mood"), "type"=> TEMPLATE_STRING),
			array("name"=> MDATA_KEY_LABEL, "label"=> _("Label"), "type"=> TEMPLATE_STRING),
			array("name"=> MDATA_KEY_COMPOSER, "label"=> _("Composer"), "type"=> TEMPLATE_STRING),
			array("name"=> MDATA_KEY_ISRC, "label"=> _("ISRC"), "type"=> TEMPLATE_STRING),
			array("name"=> MDATA_KEY_COPYRIGHT, "label"=> _("Copyright"), "type"=> TEMPLATE_STRING),
			array("name"=> MDATA_KEY_YEAR, "label"=> _("Year"), "type"=> TEMPLATE_INT),
			array("name"=> MDATA_KEY_TRACKNUMBER, "label"=> _("Track"), "type"=> TEMPLATE_INT),
			array("name"=> MDATA_KEY_CONDUCTOR, "label"=> _("Conductor"), "type"=> TEMPLATE_STRING),
			array("name"=> MDATA_KEY_LANGUAGE, "label"=> _("Language"), "type"=> TEMPLATE_STRING),
			array("name"=> MDATA_KEY_TRACK_TYPE, "label"=> _("Track Type"), "type"=> TEMPLATE_STRING),
		);

		return $fileMD;
	}

	public function mandatoryItemFields() {

	    $fields = array("starts", "ends");

	    return $fields;
	}

	public function mandatoryFileFields() {

		$fields = array("played");

		return $fields;
	}

	private function defaultItemTemplate() {

		$template = array();
		$fields = array();

		$fields[] = array("name" => "starts", "label"=> _("Start Time"),"type" => TEMPLATE_DATETIME, "isFileMd" => false);
		$fields[] = array("name" => "ends", "label"=> _("End Time"), "type" => TEMPLATE_DATETIME, "isFileMd" => false);
		$fields[] = array("name" => MDATA_KEY_TITLE, "label"=> _("Title"), "type" => TEMPLATE_STRING, "isFileMd" => true); //these fields can be populated from an associated file.
		$fields[] = array("name" => MDATA_KEY_CREATOR, "label"=> _("Creator"), "type" => TEMPLATE_STRING, "isFileMd" => true);

		$template["name"] = "Log Sheet ".date(DEFAULT_TIMESTAMP_FORMAT)." Template";
		$template["fields"] = $fields;

		return $template;
	}

	/*
	 * Default File Summary Template. Taken from The Czech radio requirements (customer requested this in the past).
	 */
	private function defaultFileTemplate() {

		$template = array();
		$fields = array();

		$fields[] = array("name" => MDATA_KEY_TITLE, "label"=> _("Title"), "type" => TEMPLATE_STRING, "isFileMd" => true);
		$fields[] = array("name" => MDATA_KEY_CREATOR, "label"=> _("Creator"), "type" => TEMPLATE_STRING, "isFileMd" => true);
		$fields[] = array("name" => "played", "label"=> _("Played"), "type" => TEMPLATE_INT, "isFileMd" => false);
		$fields[] = array("name" => MDATA_KEY_DURATION, "label"=> _("Length"), "type" => TEMPLATE_STRING, "isFileMd" => true);
		$fields[] = array("name" => MDATA_KEY_COMPOSER, "label"=> _("Composer"), "type" => TEMPLATE_STRING, "isFileMd" => true);
		$fields[] = array("name" => MDATA_KEY_COPYRIGHT, "label"=> _("Copyright"), "type" => TEMPLATE_STRING, "isFileMd" => true);

		$template["name"] = "File Summary ".date(DEFAULT_TIMESTAMP_FORMAT)." Template";
		$template["fields"] = $fields;

		return $template;
	}

	public function loadTemplate($id) {

		try {

			if (!is_numeric($id)) {
				throw new Exception("Error: $id is not numeric.");
			}

			$template = CcPlayoutHistoryTemplateQuery::create()->findPk($id, $this->con);

			if (empty($template)) {
				throw new Exception("Error: Template $id does not exist.");
			}

			$c = new Criteria();
			$c->addAscendingOrderByColumn(CcPlayoutHistoryTemplateFieldPeer::POSITION);
			$config = $template->getCcPlayoutHistoryTemplateFields($c, $this->con);
			$fields = array();

			foreach ($config as $item) {

				$fields[] = array(
					"name" => $item->getDbName(),
					"label" => $item->getDbLabel(),
					"type" => $item->getDbType(),
					"isFileMd" => $item->getDbIsFileMD(),
					"id" => $item->getDbId()
				);
			}

			$data = array();
			$data["id"] = $template->getDbId();
			$data["name"] = $template->getDbName();
			$data["fields"] = $fields;
			$data["type"] = $template->getDbType();

			return $data;
		}
		catch (Exception $e) {
			throw $e;
		}
	}

	public function getItemTemplate($id) {

		if (is_numeric($id)) {
			Logging::info("template id is: $id");
			$template = $this->loadTemplate($id);
		}
		else {
			Logging::info("Using default template");
			$template = $this->defaultItemTemplate();
		}

		return $template;
	}

	public function getTemplates($type) {

		$list = array();

		try {

			$query =  CcPlayoutHistoryTemplateQuery::create()
				->setFormatter(ModelCriteria::FORMAT_ON_DEMAND);

			if (isset($type)) {
				$templates = $query->findByDbType($type);
			}
			else {
				$templates = $query->find();
			}

			foreach ($templates as $template) {
				$list[$template->getDbId()] = $template->getDbName();
			}

			return $list;
		}
		catch (Exception $e) {
			throw $e;
		}
	}

	public function getListItemTemplates() {
		return $this->getTemplates(self::TEMPLATE_TYPE_ITEM);
	}

	public function getFileTemplates() {
		return $this->getTemplates(self::TEMPLATE_TYPE_FILE);
	}

	private function datatablesColumns($fields) {

		$columns = array();

		foreach ($fields as $field) {

			$label = $field["label"];
			$key = $field["name"];

			$columns[] = array(
				"sTitle"=> $label,
				"mDataProp"=> $key,
				"sClass"=> "his_{$key}",
				"sDataType"=> $field["type"]
			);
		}

		return $columns;
	}

	public function getDatatablesLogSheetColumns() {

	    //need to prepend a checkbox column.
	    $checkbox = array(
            "sTitle"=> "",
			"mDataProp"=> "checkbox",
			"sClass"=> "his_checkbox",
	        "bSortable"=> false
	    );

		try {
			$template = $this->getConfiguredItemTemplate();
			$fields = $template["fields"];

			$columns = $this->datatablesColumns($fields);
			array_unshift($columns, $checkbox);

			return $columns;
		}
		catch (Exception $e) {
			throw $e;
		}
	}

	public function getDatatablesFileSummaryColumns() {

		try {
			$template = $this->getConfiguredFileTemplate();
			return $this->datatablesColumns($template["fields"]);
		}
		catch (Exception $e) {
			throw $e;
		}
	}

	public function getConfiguredItemTemplate() {

		try {
			$id = Application_Model_Preference::GetHistoryItemTemplate();

			if (is_numeric($id)) {
				$template = $this->loadTemplate($id);
			}
			else {
				$template = $this->defaultItemTemplate();
			}
			return $template;
		}
		catch (Exception $e) {
			throw $e;
		}
	}

	public function setConfiguredItemTemplate($id) {
		try {
			Application_Model_Preference::SetHistoryItemTemplate($id);
		}
		catch (Exception $e) {
			throw $e;
		}
	}

	public function getConfiguredFileTemplate() {

		try {
			$id = Application_Model_Preference::GetHistoryFileTemplate();

			if (is_numeric($id)) {
				$template = $this->loadTemplate($id);
			}
			else {
				$template = $this->defaultFileTemplate();
			}
			return $template;
		}
		catch (Exception $e) {
			throw $e;
		}
	}

	public function setConfiguredFileTemplate($id) {
		try {
			Application_Model_Preference::SetHistoryFileTemplate($id);
		}
		catch (Exception $e) {
			throw $e;
		}
	}

	public function setConfiguredTemplate($id) {
		try {

			$template = $this->loadTemplate($id);
			$type = $template["type"];

			$setTemplate = "setConfigured".ucfirst($type)."Template";

			$this->$setTemplate($id);
		}
		catch (Exception $e) {
			throw $e;
		}
	}

	public function getConfiguredTemplateIds() {

		try {
			$id = Application_Model_Preference::GetHistoryItemTemplate();
			$id2 = Application_Model_Preference::GetHistoryFileTemplate();

			$configured = array();

			if (is_numeric($id)) {
				$configured[] = $id;
			}

			if (is_numeric($id2)) {
				$configured[] = $id2;
			}

			return $configured;
		}
		catch (Exception $e) {
			throw $e;
		}
	}

	public function createTemplate($config) {

		$this->con->beginTransaction();

		try {

			$type = $config["type"];

			$method = "default".ucfirst($type)."Template";
			$default = $this->$method();

			$name = isset($config["name"]) ? $config["name"] : $default["name"];
			$fields = isset($config["fields"]) ? $config["fields"] : $default["fields"];

			$doSetDefault = isset($config['setDefault']) ? $config['setDefault'] : false;

			$template = new CcPlayoutHistoryTemplate();
			$template->setDbName($name);
			$template->setDbType($type);

			foreach ($fields as $index=>$field) {

				$isMd = ($field["isFileMd"] == 'true') ? true : false;

				$templateField = new CcPlayoutHistoryTemplateField();
				$templateField->setDbName($field["name"]);
				$templateField->setDbLabel($field["label"]);
				$templateField->setDbType($field["type"]);
				$templateField->setDbIsFileMD($isMd);
				$templateField->setDbPosition($index);

				$template->addCcPlayoutHistoryTemplateField($templateField);
			}

			$template->save($this->con);

			if ($doSetDefault) {
				$this->setConfiguredItemTemplate($template->getDbid());
			}

			$this->con->commit();

			return $template->getDbid();
		}
		catch (Exception $e) {
			$this->con->rollback();
			throw $e;
		}
	}

	public function updateItemTemplate($id, $name, $fields, $doSetDefault=false) {

		$this->con->beginTransaction();

		try {

			$template = CcPlayoutHistoryTemplateQuery::create()->findPk($id, $this->con);
			$template->setDbName($name);

			if (count($fields) === 0) {
				$t = $this->defaultItemTemplate();
				$fields = $t["fields"];
			}

			$template->getCcPlayoutHistoryTemplateFields()->delete($this->con);

			foreach ($fields as $index=>$field) {

				$isMd = ($field["isFileMd"] == 'true') ? true : false;

				$templateField = new CcPlayoutHistoryTemplateField();
				$templateField->setDbName($field["name"]);
				$templateField->setDbType($field["type"]);
				$templateField->setDbLabel($field["label"]);
				$templateField->setDbIsFileMD($isMd);
				$templateField->setDbPosition($index);

				$template->addCcPlayoutHistoryTemplateField($templateField);
			}

			$template->save($this->con);

			if ($doSetDefault) {
				$this->setConfiguredItemTemplate($template->getDbid());
			}

			$this->con->commit();
		}
		catch (Exception $e) {
			$this->con->rollback();
			throw $e;
		}
	}

	public function deleteTemplate($id) {

		$this->con->beginTransaction();

		try {

			$template = CcPlayoutHistoryTemplateQuery::create()->findPk($id, $this->con);
			$template->delete($this->con);

		    $this->con->commit();
		}
		catch (Exception $e) {
			$this->con->rollback();
			throw $e;
		}
	}
}
