package ui

import (
	"cli-mon/yabl"
	ui "github.com/gizak/termui/v3"
	"github.com/gizak/termui/v3/widgets"
	"log"
	"time"
)

const headerHeight int = 4
const contactorsCount = 18
const connectorsCount = 6

func InitCliApp(events <-chan yabl.Packet) {
	if err := ui.Init(); err != nil {
		log.Fatalf("failed to initialize termui: %v", err)
	}
	defer ui.Close()

	var connectorsTab *ui.Grid
	//var contactorsErr *widgets.Paragraph
	var contactorsStateTab *ui.Grid
	var header *widgets.Paragraph

	tabpane := widgets.NewTabPane("Connectors", "Contactors States", "Contactors Errors")
	tabpane.SetRect(0, 1, 150, 4)
	tabpane.Border = true

	header = newHeader()
	connectorsTab = newConnectorsView()
	contactorsStateTab = newContactorsView()
	contactorsErr = newContactorsErrView()

	renderTab := func() {
		switch tabpane.ActiveTabIndex {
		case 0:
			termWidth, termHeight := ui.TerminalDimensions()
			connectorsTab.SetRect(0, headerHeight, termWidth, termHeight)
			ui.Render(connectorsTab)
		case 1:
			termWidth, termHeight := ui.TerminalDimensions()
			contactorsStateTab.SetRect(0, headerHeight, termWidth, termHeight)
			ui.Render(contactorsStateTab)
		case 2:
			ui.Render(contactorsErr)
		}
	}

	ui.Render(header, tabpane, connectorsTab)

	uiEvents := ui.PollEvents()
	ticker := time.NewTicker(2 * time.Second).C
	for {
		select {
		case e := <-uiEvents:
			switch e.ID { // event string/identifier
			case "q", "<C-c>": // press 'q' or 'C-c' to quit
				return
			case "<MouseLeft>":
				//payload := e.Payload.(ui.Mouse)
				//x, y := payload.X, payload.Y
				//p.Text = fmt.Sprintf("X = %d, Y = %d", x, y)
			case "<Left>":
				tabpane.FocusLeft()
				ui.Clear()
				ui.Render(header, tabpane)
				renderTab()
			case "<Right>":
				tabpane.FocusRight()
				ui.Clear()
				ui.Render(header, tabpane)
				renderTab()
			}

			switch e.Type {
			case ui.KeyboardEvent: // handle all key presses
				//eventID := e.ID // keypress string
				//p.Text = eventID
			}
		// use Go's built-in tickers for updating and drawing data
		case <-ticker:
			renderTab()
		case message := <-events:
			process(message)
		}
	}
}