Add tui.go

cmd/tui.go

@@ -0,0 +1,143 @@
+package cmd
+
+import (
+	"fmt"
+	"github.com/jroimartin/gocui"
+	"log"
+)
+
+func ui() {
+	g, err := gocui.NewGui(gocui.Output256)
+	if err != nil {
+		log.Panicln(err)
+	}
+	defer g.Close()
+	g.SetManagerFunc(layout)
+	g.Mouse = false
+	//g.Cursor = true
+
+	initKeybindings(g)
+
+	if err := g.MainLoop(); err != nil && err != gocui.ErrQuit {
+		log.Panicln(err)
+	}
+}
+
+func quit(*gocui.Gui, *gocui.View) error {
+	return gocui.ErrQuit
+}
+
+// func sendmsg(g *gocui.Gui, v *gocui.View) error {
+// 	chatbox, err := g.View("chatbox")
+// 	textarea, err := g.View("textarea")
+// 	if err != nil {
+// 		log.Panicln(err)
+// 	}
+// 	message := textarea.Buffer()
+// 	msg := string(message)
+// 	if msg == "" {
+// 		return nil
+// 	}
+//
+// 	fmt.Fprint(chatbox, msg)
+// 	textarea.Clear()
+// 	textarea.SetCursor(0, 0)
+// 	return nil
+// }
+
+func initKeybindings(g *gocui.Gui) error {
+	if err := g.SetKeybinding("", gocui.KeyCtrlC, gocui.ModNone, quit); err != nil {
+		log.Panicln(err)
+	}
+
+	// if err := g.SetKeybinding("button", gocui.MouseLeft, gocui.ModNone, sendmsg); err != nil {
+	// 	log.Panicln(err)
+	// }
+	//
+	if err := g.SetKeybinding("songSelection", gocui.KeyArrowDown, gocui.ModNone, func(g *gocui.Gui, v *gocui.View) error {
+		scrollSongs(v, +1)
+		return nil
+	}); err != nil {
+		log.Panicln(err)
+	}
+
+	if err := g.SetKeybinding("songSelection", gocui.KeyArrowUp, gocui.ModNone, func(g *gocui.Gui, v *gocui.View) error {
+		scrollSongs(v, -1)
+		return nil
+	}); err != nil {
+		log.Panicln(err)
+	}
+
+	if err := g.SetKeybinding("songSelection", gocui.KeyEnter, gocui.ModNone, playSong); err != nil {
+		log.Panicln(err)
+	}
+	return nil
+}
+
+func scrollSongs(v *gocui.View, dy int) error {
+	_, currentY := v.Cursor()
+	songs := v.BufferLines()
+	if currentY == len(songs)-2 && dy == +1 {
+		v.SetCursor(0, 0)
+	} else if currentY == 0 && dy == -1 {
+		v.SetCursor(0, len(songs)-2)
+	} else {
+		v.SetCursor(0, currentY+dy)
+	}
+	return nil
+}
+
+func playSong(g *gocui.Gui, v *gocui.View) error {
+	currentlyPlaying, err := g.View("currentlyPlaying")
+	if err != nil {
+		return err
+	}
+	currentlyPlaying.Clear()
+	_, currentlySelected := v.Cursor()
+
+	songs := v.BufferLines()
+	fmt.Fprintln(currentlyPlaying, fmt.Sprintf("Playing song number %v (%v)", currentlySelected, songs[currentlySelected]))
+	// fmt.Fprintln(currentlyPlaying, len(songs))
+	// fmt.Fprintln(currentlyPlaying, currentlySelected)
+
+	return nil
+}
+
+func layout(g *gocui.Gui) error {
+	maxX, maxY := g.Size()
+
+	if progressViewer, err := g.SetView("progressViewer", 2, 1, maxX-2, 4); err != nil {
+		if err != gocui.ErrUnknownView {
+			return err
+		}
+		progressViewer.Title = "Progress viewer"
+	}
+
+	if songSelection, err := g.SetView("songSelection", 2, 5, maxX/2+2, maxY-2); err != nil {
+		if err != gocui.ErrUnknownView {
+			return err
+		}
+		if _, err := g.SetCurrentView("songSelection"); err != nil {
+			log.Panicln(err)
+		}
+		for i := 0; i < 5; i++ {
+			songName := fmt.Sprintf("SongNumber%v", i)
+			fmt.Fprintln(songSelection, songName)
+		}
+		songSelection.Title = "Song selection:"
+		songSelection.Wrap = true
+
+		songSelection.Editable = false
+		songSelection.Highlight = true
+		songSelection.SelFgColor = gocui.ColorCyan
+	}
+
+	if currentlyPlaying, err := g.SetView("currentlyPlaying", maxX/2+4, 5, maxX-2, maxY-2); err != nil {
+		if err != gocui.ErrUnknownView {
+			return err
+		}
+		currentlyPlaying.Title = "Currently playing:"
+		currentlyPlaying.Wrap = true
+	}
+	return nil
+}