var g_chosen_datetimes = [];
var g_chosen_texts = [];
var g_chosen_groups = [];
var g_chosen_users = [];
var chosen_type = 'event';
var access_type = '';
var isAnonymous;
var hideNames;

function selectItem(cell) {
	cell.removeClass('icon-close');
	cell.addClass('icon-checkmark');
	cell.removeClass('date-text-not-selected');
	cell.addClass('date-text-selected');
	if (cell.attr('class').indexOf('is-text') > -1) {
		var id = cell.attr('id');
		g_chosen_texts.push(id.substring(id.indexOf('_') + 1));
	} else {
		var dateId = cell.parent().attr('id'); //timestamp of date
		var timeId = cell.attr('id');
		g_chosen_datetimes.push(parseInt(dateId) + parseInt(timeId));
	}
}

function deselectItem(cell) {
	var id;
	var index;
	var dateId;
	var timeId;
	cell.removeClass('icon-checkmark');
	cell.addClass('icon-close');
	cell.removeClass('date-text-selected');
	cell.addClass('date-text-not-selected');
	if (cell.attr('class').indexOf('is-text') > -1) {
		id = cell.attr('id');
		index = g_chosen_texts.indexOf(id.substring(id.indexOf('_') + 1));
		if (index > -1) {
			g_chosen_texts.splice(index, 1);
		}
	} else {
		dateId = cell.parent().attr('id'); //timestamp of date
		timeId = cell.attr('id');
		index = g_chosen_datetimes.indexOf(parseInt(dateId) + parseInt(timeId));
		if (index > -1) {
			g_chosen_datetimes.splice(index, 1);
		}
	}
}

function insertText(text, set) {
	if (typeof set === 'undefined') {
		set = false;
	}
	var table = document.getElementById('selected-texts-table');
	var tr = table.insertRow(-1);
	var td = tr.insertCell(-1);
	td.innerHTML = text;
	td.className = 'text-row';
	td = tr.insertCell(-1);
	if (set) {
		td.className = 'icon-checkmark is-text date-text-selected';
	} else {
		td.className = 'icon-close is-text date-text-not-selected';
	}
	td.id = 'text_' + text;
}

function addRowToList(ts, text, timeTs) {
	if (typeof timeTs === 'undefined') {
		timeTs = -1;
	}
	var table = document.getElementById('selected-dates-table');
	var rows = table.rows;
	var td, tr, tdId;
	var i, j;
	var curr;
	if (rows.length === 0) {
		tr = table.insertRow(-1); //start new header
		tr.insertCell(-1);
		tr = table.insertRow(-1); //append new row
		tr.id = ts;
		tr.className = 'toggleable-row';
		td = tr.insertCell(-1);
		td.className = 'date-row';
		td.innerHTML = text;
		return;
	}
	for ( i=1; i<rows.length; i++) {
		curr = rows[i];
		if (curr.id === ts) {
			for (j=1; j<curr.cells.length; j++) {
				td = curr.cells[j];
				 tdId = curr.cells[j].id;
				if ( timeTs === tdId) {
					td.className = 'icon-checkmark date-text-selected';
				}
			}
			return; //already in table, cancel
		} else if (curr.id > ts) {
			tr = table.insertRow(i); //insert row at current index
			tr.id = ts;
			tr.className = 'toggleable-row';
			td = tr.insertCell(-1);
			td.className = 'date-row';
			td.innerHTML = text;
			for (j=1; j<rows[0].cells.length; j++) {
				tdId = rows[0].cells[j].id;
				td = tr.insertCell(-1);
				if (timeTs === tdId) {
					td.className = 'icon-checkmark date-text-selected';
				}  else { 
					td.className = 'icon-close date-text-not-selected';
				}
				td.id = tdId;
				td.innerHTML = '';
			}
			return;
		}
	}
	tr = table.insertRow(-1); //highest value, append new row
	tr.id = ts;
	tr.className = 'toggleable-row';
	td = tr.insertCell(-1);
	td.className = 'date-row';
	td.innerHTML = text;
	for (j=1; j<rows[0].cells.length; j++) {
		tdId = rows[0].cells[j].id;
		td = tr.insertCell(-1);
		if (timeTs === tdId) {
			td.className = 'icon-checkmark date-text-selected';
		} else {
			td.className = 'icon-close date-text-not-selected';
		}
		td.id = tdId;
		td.innerHTML = '';
	}
}

function addColToList(ts, text, dateTs) {
	if (typeof dateTs === 'undefined') {
		dateTs = -1;
	}
	var table = document.getElementById('selected-dates-table');
	var rows = table.rows;
	var tr, row, td, cells, tmpRow;
	var i, curr;
	var index = -1;
	if (rows.length === 0) {
		tr = table.insertRow(-1);
		tr.insertCell(-1);
	}
	rows = table.rows;
	tmpRow = rows[0];
	for (i=0; i<tmpRow.cells.length; i++) {
		curr = tmpRow.cells[i];
		if (curr.id === ts) {
			return; //already in table, cancel
		} else if (curr.id > ts) {
			index = i;
			break;
		}
	}

	for (i=0; i<rows.length; i++) {
		row = rows[i];
		cells = row.cells;
		td = row.insertCell(index);
		//only display time in header row
		if (i===0) {
			td.innerHTML = text;
			td.className = 'date-col';
		} else {
			td.innerHTML = '';
			if (row.id === dateTs) {
				td.className = 'icon-checkmark date-text-selected';
			} else { 
				td.className = 'icon-close date-text-not-selected';
			}
		}
		td.id = ts;
	}
}

function debounce(f, wait, immediate) {
	var timeout;
	return function() {
		var context = this;
		var args = arguments;
		var later = function() {
			timeout = null;
			if (!immediate) {
				f.apply(context, args);
			}
		};
		var callNow = immediate && !timeout;
		clearTimeout(timeout);
		timeout = setTimeout(later, wait);
		if (callNow) {
			f.apply(context, args);
		}
	};
}

$(document).ready(function () {
	// enable / disable date picker
	var i;
	$('#id_expire_set').click(function(){
		$('#id_expire_date').prop("disabled", !this.checked);
		if (this.checked) {
		   $("#id_expire_date").focus();
		}
	});

	var anonOptions = document.getElementById('anonOptions');
	$('#hideNames').click(function() {
		hideNames = this.checked;
	});

	$('#isAnonymous').click(function() {
		isAnonymous = this.checked;
		if (isAnonymous) {
			anonOptions.style.display = 'inline';
		} else {
			anonOptions.style.display = 'none';
		}
	});

	var privateRadio = document.getElementById('private');
	var hiddenRadio = document.getElementById('hidden');
	var publicRadio = document.getElementById('public');
	var selectRadio = document.getElementById('select');
	if (privateRadio.checked) {
		access_type = 'registered';
	} else if (hiddenRadio.checked) {
		access_type = 'hidden';
	} else if (publicRadio.checked) {
		access_type = 'public';
	} else if (selectRadio.checked) {
		access_type = 'select';
	}

	isAnonymous = document.getElementById('isAnonymous').checked;
	hideNames = anonOptions.checked;

	var accessValues = document.getElementById('accessValues');
	if (accessValues.value.length > 0) {
		var list = document.getElementById('selected-search-list-id');
		var accessValueArr = accessValues.value.split(';');
		for (i=0; i<accessValueArr.length; i++) {
			var val = accessValueArr[i];
			if (val === '') {
				continue;
			}
			var li = document.createElement('li');
			li.id = val;
			li.className = 'cl_item cl_access_item selected';
			var index = val.indexOf('group_');
			if (index === 0) {
				g_chosen_groups.push(val);
				li.className += ' is-group';
				li.appendChild(document.createTextNode(val.substring(6) + " (group)"));
				list.appendChild(li);
			} else {
				index = val.indexOf('user_');
				if (index === 0) {
					g_chosen_users.push(val);
					li.className = 'cl_item cl_access_item selected';
					var username = val.substring(5);
					$.post(OC.generateUrl('/apps/polls/get/displayname'), {username: username}, function(data) {
						li.appendChild(document.createTextNode(username + " (" + data + ")"));
						list.appendChild(li);
					});
				}
			}
		}
	}

	var chosenDates = document.getElementById('chosenDates').value;
	var chosen = '';
	if (chosenDates.length > 0) {
		chosen = JSON.parse(chosenDates);
	}
	var text = document.getElementById('text');
	var event = document.getElementById('event');
	if (event.checked) {
		chosen_type = event.value;
		if (chosenDates.length > 0) {
			g_chosen_datetimes = chosen;
		}
		for (i=0; i<chosen.length; i++) {
			var date = new Date(chosen[i]*1000);
			var year = date.getFullYear();
			var month = date.getMonth();
			var day = date.getDate();
			var newDate = new Date(year, month, day).getTime(); //save timestamp without time of day
			month = '0' + (month+1); //month is 0-11, so +1
			day = '0' + day;
			var dateStr = day.substr(-2) + '.' + month.substr(-2) + '.' + year;
			var hours = date.getHours();
			var minutes = date.getMinutes();
			var ms = (hours * 60 * 60 * 1000) + (minutes * 60 * 1000); //time of day in milliseconds
			hours = '0' + hours;
			minutes = '0' + minutes;
			var timeStr = hours.substr(-2) + ':' + minutes.substr(-2);
			addRowToList(newDate/1000, dateStr, ms/1000);
			addColToList(ms/1000, timeStr, newDate/1000);
		}
	} else {
		chosen_type = text.value;
		if (chosenDates.length > 0) {
			g_chosen_texts = chosen;
		}
		for (i=0; i<chosen.length; i++) {
			insertText(chosen[i], true);
		}
	}

	var expirepicker = jQuery('#id_expire_date').datetimepicker({
		inline: false,
		onSelectDate: function(date) {
			var year = date.getFullYear();
			var month = date.getMonth();
			var day = date.getDate();
			var newDate = new Date(year, month, day).getTime()/1000;
			document.getElementById('expireTs').value = newDate;
		},
		timepicker: false,
		format: 'd.m.Y'
	});

	var datepicker = jQuery('#datetimepicker').datetimepicker({
		inline:true,
		step: 15,
		todayButton: true,
		onSelectDate: function(date) {
			var year = date.getFullYear();
			var month = date.getMonth();
			var day = date.getDate();
			var newDate = new Date(year, month, day).getTime(); //save timestamp without time of day
			month = '0' + (month+1); //month is 0-11, so +1
			day = '0' + day;
			var dateStr = day.substr(-2) + '.' + month.substr(-2) + '.' + year;
			addRowToList(newDate/1000, dateStr);
		},
		onSelectTime: function(date) {
			var hours = date.getHours();
			var minutes = date.getMinutes();
			var ms = (hours * 60 * 60 * 1000) + (minutes * 60 * 1000); //time of day in milliseconds
			hours = '0' + hours;
			minutes = '0' + minutes;
			var timeStr = hours.substr(-2) + ':' + minutes.substr(-2);
			addColToList(ms/1000, timeStr);
		}
	});

	$(document).on('click', '.date-row', function() {
		var tr = $(this).parent();
		var dateId = parseInt(tr.attr('id'));
		var index = tr.index();
		var cells = tr[0].cells; //convert jQuery object to DOM
		for (var i=1; i<cells.length; i++) {
			var cell = cells[i];
			var delIndex = g_chosen_datetimes.indexOf(dateId + parseInt(cell.id));
			if (delIndex > -1) {
				g_chosen_datetimes.splice(delIndex, 1);
			}
		}
		var table = document.getElementById('selected-dates-table');
		table.deleteRow(index);
	});

	$(document).on('click', '.date-col', function() {
		var cellIndex = $(this).index();
		var timeId = parseInt($(this).attr('id'));
		var table = document.getElementById('selected-dates-table');
		var rows = table.rows;
		rows[0].deleteCell(cellIndex);
		for (var i=1; i<rows.length; i++) {
			var row = rows[i];
			var delIndex = g_chosen_datetimes.indexOf(parseInt(row.id) + timeId);
			if (delIndex > -1) {
				g_chosen_datetimes.splice(delIndex, 1);
			}
			row.deleteCell(cellIndex);
		}
	});

	$(document).on('click', '.text-row', function() {
		var tr = $(this).parent();
		var rowIndex = tr.index();
		var name = $(this).html();
		var delIndex = g_chosen_texts.indexOf(name);
		if (delIndex > -1) {
			g_chosen_texts.splice(delIndex, 1);
		}
		var table = document.getElementById('selected-texts-table');
		table.deleteRow(rowIndex);
	});

	$(document).on('click', '.icon-close', function() {
		selectItem($(this));
	});

	$(document).on('click', '.icon-checkmark', function() {
		deselectItem($(this));
	});

	$(document).on('click', '#text-submit', function() {
		var text = document.getElementById('text-title');
		if (text.value.length === 0) {
			alert('Please enter a text!');
			return false;
		}
		insertText(text.value);
		text.value = '';
	});

	$(document).on('click', '.cl_item', function() {
		var index;
		var list = document.getElementById('selected-search-list-id');
		var isGroup = $(this).hasClass('is-group');
		if ($(this).hasClass('selected')) {
			if (isGroup) {
				index = g_chosen_groups.indexOf(this.id);
			}
			else { 
				index = g_chosen_users.indexOf(this.id);
			}
			if (index > -1) {
				if (isGroup) {
					g_chosen_groups.splice(index, 1);
				}
				else {
					g_chosen_users.splice(index, 1);
				}
				$(this).remove();
			}
		} else {
			if (!isGroup) {
				var text = this.id.replace('user_', '');
				g_chosen_users.push(this.id);
			} else {
				g_chosen_groups.push(this.id);
			}
			document.getElementById('user-group-search-box').value = '';
			var li = document.createElement('li');
			li.id = this.id;
			li.className = 'cl_item cl_access_item selected' + (isGroup ? ' is-group' : '');
			if (!isGroup) {
				$.post(OC.generateUrl('/apps/polls/get/displayname'), {username: text}, function(data) {
					li.appendChild(document.createTextNode(text + " (" + data + ")"));
					list.appendChild(li);
				});
			} else {
				li.appendChild(document.createTextNode($(this).html()));
				list.appendChild(li);
			}
			$(this).remove();
		}
	});

	$('.toggleable-row').hover(
		function() {
			var td = this.insertCell(-1);
			td.className = 'toggle-all selected-all';
		}, function() {
			$(this).find('td:last-child').remove();
		}
	);

	$(document).on('click', '.toggle-all', function() {
		var children;
		var i;
		if ($(this).attr('class').indexOf('selected-all') > -1) {
			children = $(this).parent().children('.icon-checkmark');
			for (i=0; i<children.length; i++) {
				deselectItem($(children[i]));
			}
			$(this).removeClass('selected-all');
			$(this).addClass('selected-none');
		} else {
			children = $(this).parent().children('.icon-close');
			for (i=0; i<children.length; i++) {
				selectItem($(children[i]));
			}
			$(this).removeClass('selected-none');
			$(this).addClass('selected-all');
		}
	});

	$('input[type=radio][name=pollType]').change(function() {
		if (this.value === 'event') {
			chosen_type = 'event';
			document.getElementById('text-select-container').style.display = 'none';
			document.getElementById('date-select-container').style.display = 'inline';
		} else {
			chosen_type = 'text';
			document.getElementById('text-select-container').style.display = 'inline';
			document.getElementById('date-select-container').style.display = 'none';
		}
	});

	$('input[type=radio][name=accessType]').click(function() {
		access_type = this.value;
		if (access_type === 'select') {
			$("#access_rights").show();
			$("#selected_access").show();
		} else {
			$("#access_rights").hide();
			$("#selected_access").hide();
		}
	});

	$('input[type=checkbox][name=check_expire]').change(function() {
		if (!$(this).is(':checked')) {
			document.getElementById('expireTs').value = '';
		}
	});

	$('#user-group-search-box').on('input', debounce(function() {
		var ul = document.getElementById('live-search-list-id');
		while(ul.firstChild) {
			ul.removeChild(ul.firstChild);
		}
		var val = $(this).val();
		if (val.length < 3) {
			return;
		}
		var formData = {
			searchTerm: val,
			groups: JSON.stringify(g_chosen_groups),
			users: JSON.stringify(g_chosen_users)
		};
		$.post(OC.generateUrl('/apps/polls/search'), formData, function(data) {
			for (var i=0; i<data.length; i++) {
				var ug = data[i];
				var li = document.createElement('li');
				li.className = 'cl_item cl_access_item';
				if (ug.isGroup) {
					li.id = 'group_' + ug.gid;
					li.className += ' is-group';
					li.appendChild(document.createTextNode(ug.gid + " (group)"));
					ul.appendChild(li);
				} else {
					li.id = 'user_' + ug.uid;
					li.appendChild(document.createTextNode(ug.uid + " (" + ug.displayName + ")"));
					var span = document.createElement('span');
					span.id = 'sec_name';
					span.appendChild(document.createTextNode(ug.uid));
					li.appendChild(span);
					ul.appendChild(li);
				}
			}
		});
	}, 250));

	$('.live-search-list-user li').each(function(){
	$(this).attr('data-search-term', $(this).text().toLowerCase());
	});

	$('.live-search-box-user').on('keyup', function(){
	var searchTerm = $(this).val().toLowerCase();
		$('.live-search-list-user li').each(function(){
			if (   $(this).filter('[data-search-term *= ' + searchTerm + ']').length > 0  
			    || searchTerm.length < 1
			) {
				$(this).show();
			} else {
				$(this).hide();
			}
		});
	});

	$('.live-search-list-group li').each(function(){
		$(this).attr('data-search-term', $(this).text().toLowerCase());
	});
 
	$('.live-search-box-group').on('keyup', function(){
	var searchTerm = $(this).val().toLowerCase();
		$('.live-search-list-group li').each(function(){
			if (   $(this).filter('[data-search-term *= ' + searchTerm + ']').length > 0 
			    || searchTerm.length < 1
			) {
				$(this).show();
			} else {
				$(this).hide();
			}
		});
	}); 

	var form = document.finish_poll;
	var submit_finish_poll = document.getElementById('submit_finish_poll');
	if (submit_finish_poll !== null) {
		submit_finish_poll.onclick = function() {
			if (   g_chosen_datetimes.length === 0 
			    && g_chosen_texts.length === 0
			) {
				alert(t('polls', 'Nothing selected!\nClick on cells to turn them green.'));
				return false;
			}
			if (chosen_type === 'event') {
				form.elements.chosenDates.value = JSON.stringify(g_chosen_datetimes);
			}
			else {
				form.elements.chosenDates.value = JSON.stringify(g_chosen_texts);
			}
			var title = document.getElementById('pollTitle');
			if (   title === null 
			    || title.value.length === 0
			) {
				alert(t('polls', 'You must enter at least a title for the new poll.'));
				return false;
			}

			if (access_type === 'select') {
				if (   g_chosen_groups.length === 0 
				    && g_chosen_users === 0
				) {
					alert(t('polls', 'Please select at least one user or group!'));
					return false;
				}
				form.elements.accessValues.value = JSON.stringify({
					groups: g_chosen_groups,
					users: g_chosen_users
				});
			}
			form.elements.isAnonymous.value = isAnonymous;
			form.elements.hideNames.value = hideNames;
			form.submit();
		};
	}
});