1 files changed, 87 insertions, 0 deletions
diff --git a/main.go b/main.go
new file mode 100644
index 0000000..7d3bb56
--- /dev/null
+++ b/main.go
@@ -0,0 +1,87 @@
+package main
+
+import (
+	"fmt"
+	"unicode"
+
+	"github.com/gdamore/tcell/v2"
+	"github.com/rivo/tview"
+)
+
+var (
+	normalMode  = false
+	botRespMode = false
+	botMsg      = "no"
+	indexLine   = "Row: [yellow]%d[white], Column: [yellow]%d; normal mode: %v"
+)
+
+func isASCII(s string) bool {
+	for i := 0; i < len(s); i++ {
+		if s[i] > unicode.MaxASCII {
+			return false
+		}
+	}
+	return true
+}
+
+func main() {
+	app := tview.NewApplication()
+	textArea := tview.NewTextArea().
+		SetPlaceholder("Type your prompt...")
+	textArea.SetBorder(true).SetTitle("input")
+	textView := tview.NewTextView().
+		SetDynamicColors(true).
+		SetRegions(true).
+		SetChangedFunc(func() {
+			app.Draw()
+		})
+	textView.SetBorder(true).SetTitle("chat")
+	position := tview.NewTextView().
+		SetDynamicColors(true).
+		SetTextAlign(tview.AlignCenter)
+	flex := tview.NewFlex().SetDirection(tview.FlexRow).
+		AddItem(textView, 0, 40, false).
+		AddItem(textArea, 0, 10, true).
+		AddItem(position, 0, 1, false)
+	updateStatusLine := func() {
+		fromRow, fromColumn, toRow, toColumn := textArea.GetCursor()
+		if fromRow == toRow && fromColumn == toColumn {
+			position.SetText(fmt.Sprintf(indexLine, fromRow, fromColumn, normalMode))
+		} else {
+			position.SetText(fmt.Sprintf("[red]From[white] Row: [yellow]%d[white], Column: [yellow]%d[white] - [red]To[white] Row: [yellow]%d[white], To Column: [yellow]%d; normal mode: %v", fromRow, fromColumn, toRow, toColumn, normalMode))
+		}
+	}
+	textArea.SetMovedFunc(updateStatusLine)
+	updateStatusLine()
+	textView.SetText("<🤖>: Hello! What can I do for you?")
+	app.SetInputCapture(func(event *tcell.EventKey) *tcell.EventKey {
+		if botRespMode {
+			// do nothing while bot typing
+			return nil
+		}
+		if event.Key() == tcell.KeyEscape {
+			fromRow, fromColumn, _, _ := textArea.GetCursor()
+			position.SetText(fmt.Sprintf(indexLine, fromRow, fromColumn, normalMode))
+			// read all text into buffer
+			msgText := textArea.GetText()
+			if msgText != "" {
+				fmt.Fprintf(textView, "\n<user>: %s\n", msgText)
+				textArea.SetText("", true)
+			}
+			// update statue line
+			go chatRound(msgText, userRole, textView)
+			return nil
+		}
+		if isASCII(string(event.Rune())) {
+			// normalMode = false
+			// fromRow, fromColumn, _, _ := textArea.GetCursor()
+			// position.SetText(fmt.Sprintf(indexLine, fromRow, fromColumn, normalMode))
+			return event
+		}
+		return event
+	})
+	if err := app.SetRoot(flex,
+		true).EnableMouse(true).Run(); err != nil {
+		panic(err)
+	}
+}