@IBOutlet weak var gridTimerView: GridTimerView!

gridTimerView.dataSource = self
gridTimerView.delegate = self

var configuration = GridTimerConfiguration()

// Font for timer labels in rule
configuration.ruleFont = UIFont.systemFont(ofSize: 10, weight: .semibold)

// Color for timer labels in rule
configuration.ruleTextColor = UIColor.lightGray

// Days before today for initial time
configuration.ruleDaysFrom = 1

// Days after today for end time
configuration.ruleDaysTo = 2

// Rule ticks color
configuration.ruleTicksColor = UIColor.white

// Rule background color
configuration.ruleBackgroundColor = UIColor.darkGray

// Font used in current time
configuration.timerFont = UIFont.systemFont(ofSize: 12, weight: .semibold)

// Background color used in current time
configuration.timerColor = UIColor.blue

// Text color used in current time
configuration.timerTextColor = UIColor.white

// Selected date line color
configuration.lineColor = UIColor.blue
    
// Current date line color
configuration.currentTimeLineColor = UIColor.blue

/// Current date line dashed
configuration.currentTimeLineDashed = false

// Selected highlight color on event
configuration.selectedItemColor = UIColor.blue

// Unselected color on event
configuration.unselectedItemColor = UIColor.lightGray

/// Selected highlight color when row cell touched
configuration.selectedColorOnTouch = UIColor.init(red: 0.95, green: 0.95, blue: 0.95, alpha: 1)

// Row separation
configuration.rowSeparation = 10.0

/// Enable refresh control when dragged down
configuration.enableRefresh = false

gridTimerView.configuration = configuration

// Needed for displaying rows. Returns number of rows in the table
func numberOfRows(inGridTimerView gridTimerView: GridTimerView) -> Int 

// Needed for displaying rows. Returns height of custom row in the table
func heightForRow(inGridTimerView gridTimerView: GridTimerView) -> CGFloat 

// Needed for displaying items in the timeline row. Returns height of highlighted items
func heightForTimelineRow(inGridTimerView gridTimerView: GridTimerView) -> CGFloat 

// Needed for displaying items in the timeline row. Returns number of items in row
func gridTimerView(gridTimerView: GridTimerView, numberOfItemsAtRowIndex rowIndex: Int) -> Int 

// Needed for drawing your custom row with item index and row index
func gridTimerView(gridTimerView: GridTimerView, viewForItemIndex itemIndex: Int, inRowIndex rowIndex: Int) -> UIView {
    
    let channelView = ChannelView()
    let channel = channels[rowIndex]
    var viewModel = ChannelView.ViewModel()
    
    if channel.events.count > 0 {
        viewModel.title = channel.events[itemIndex].title
        viewModel.subtitle = channel.events[itemIndex].subtitle
        viewModel.image = channel.channelImage
    }
    
    channelView.viewModel = viewModel
    return channelView
}

// Needed for drawing item in the timeline row
func gridTimerView(gridTimerView: GridTimerView, startTimeForItemIndex itemIndex: Int, inRowIndex rowIndex: Int) -> Date

// Needed for drawing item in the timeline row
func gridTimerView(gridTimerView: GridTimerView, endTimeForItemIndex itemIndex: Int, inRowIndex rowIndex: Int) -> Date

// Returns color by item in row.
// If returns nil, `selectedItemColor` in configuration will be the selected color
func gridTimerView(gridTimerView: GridTimerView, colorForItemIndex itemIndex: Int, inRowIndex rowIndex: Int) -> UIColor?

// Called when item is highlighted. 
func gridTimerView(gridTimerView: GridTimerView, didHighlightAtItemIndex itemIndex: Int, inRowIndex rowIndex: Int)

// Called when row is selected
func gridTimerView(gridTimerView: GridTimerView, didSelectRowAtIndex rowIndex: Int)

// Called when you refresh the table
func didPullToRefresh(inGridTimerView gridTimerView: GridTimerView)

// Scroll the timer to single date programatically
func scrollToDate(date: Date)

// Obtain your custom view
func viewForRowIndex(rowIndex: Int) -> UIView?

// End refreshing table. Used when finish loading data
func endRefresh() 

// Reload collection view data
func reloadGridData() 

// Reload collection view data for row index
func reloadGridRowIndex(_ rowIndex: Int)