Feat: add modal window to choose chat file to load

bot.go

@@ -10,6 +10,7 @@ import (
 	"log/slog"
 	"net/http"
 	"os"
+	"path"
 	"strings"
 	"time"
 
@@ -21,14 +22,18 @@ var httpClient = http.Client{
 }
 
 var (
-	logger          *slog.Logger
-	APIURL          = "http://localhost:8080/v1/chat/completions"
-	DB              = map[string]map[string]any{}
-	userRole        = "user"
-	assistantRole   = "assistant"
-	toolRole        = "tool"
-	assistantIcon   = "<🤖>: "
-	userIcon        = "<user>: "
+	logger        *slog.Logger
+	APIURL        = "http://localhost:8080/v1/chat/completions"
+	DB            = map[string]map[string]any{}
+	userRole      = "user"
+	assistantRole = "assistant"
+	toolRole      = "tool"
+	assistantIcon = "<🤖>: "
+	userIcon      = "<user>: "
+	historyDir    = "./history/"
+	// TODO: pass as an cli arg
+	showSystemMsgs  bool
+	chatFileLoaded  string
 	chunkChan       = make(chan string, 10)
 	streamDone      = make(chan bool, 1)
 	chatBody        *models.ChatBody
@@ -177,7 +182,7 @@ out:
 	// TODO:
 	// bot msg is done;
 	// now check it for func call
-	logChat("testlog", chatBody.Messages)
+	logChat(chatFileLoaded, chatBody.Messages)
 	findCall(respText.String(), tv)
 }
 
@@ -220,11 +225,22 @@ func findCall(msg string, tv *tview.TextView) {
 	// return func result to the llm
 }
 
-func findLatestChat() string {
-	dir := "./history/"
+func listHistoryFiles(dir string) ([]string, error) {
 	files, err := os.ReadDir(dir)
 	if err != nil {
 		logger.Error("failed to readdir", "error", err)
+		return nil, err
+	}
+	resp := make([]string, len(files))
+	for i, f := range files {
+		resp[i] = path.Join(dir, f.Name())
+	}
+	return resp, nil
+}
+
+func findLatestChat(dir string) string {
+	files, err := listHistoryFiles(dir)
+	if err != nil {
 		panic(err)
 	}
 	var (
@@ -232,16 +248,16 @@ func findLatestChat() string {
 		newestTime int64
 	)
 	logger.Info("filelist", "list", files)
-	for _, f := range files {
-		fi, err := os.Stat(dir + f.Name())
+	for _, fn := range files {
+		fi, err := os.Stat(fn)
 		if err != nil {
-			logger.Error("failed to get stat", "error", err, "name", f.Name())
+			logger.Error("failed to get stat", "error", err, "name", fn)
 			panic(err)
 		}
 		currTime := fi.ModTime().Unix()
 		if currTime > newestTime {
 			newestTime = currTime
-			latestF = f.Name()
+			latestF = fn
 		}
 	}
 	return latestF
@@ -258,12 +274,13 @@ func readHistoryChat(fn string) ([]models.MessagesStory, error) {
 		logger.Error("failed to unmarshal", "error", err, "name", fn)
 		return nil, err
 	}
+	chatFileLoaded = fn
 	return resp, nil
 }
 
 func loadOldChatOrGetNew(fns ...string) []models.MessagesStory {
 	// find last chat
-	fn := findLatestChat()
+	fn := findLatestChat(historyDir)
 	if len(fns) > 0 {
 		fn = fns[0]
 	}
@@ -276,14 +293,22 @@ func loadOldChatOrGetNew(fns ...string) []models.MessagesStory {
 	return history
 }
 
-func chatToText() []string {
+func chatToTextSlice(showSys bool) []string {
 	resp := make([]string, len(chatBody.Messages))
 	for i, msg := range chatBody.Messages {
+		if !showSys && (msg.Role != assistantRole && msg.Role != userRole) {
+			continue
+		}
 		resp[i] = msg.ToText()
 	}
 	return resp
 }
 
+func chatToText(showSys bool) string {
+	s := chatToTextSlice(showSys)
+	return strings.Join(s, "")
+}
+
 func textToChat(chat []string) []models.MessagesStory {
 	resp := make([]models.MessagesStory, len(chat))
 	for i, rawMsg := range chat {

main.go

@@ -2,7 +2,8 @@ package main
 
 import (
 	"fmt"
-	"strings"
+	"path"
+	"time"
 	"unicode"
 
 	"github.com/gdamore/tcell/v2"
@@ -27,6 +28,7 @@ func isASCII(s string) bool {
 
 func main() {
 	app := tview.NewApplication()
+	pages := tview.NewPages()
 	textArea := tview.NewTextArea().
 		SetPlaceholder("Type your prompt...")
 	textArea.SetBorder(true).SetTitle("input")
@@ -52,21 +54,62 @@ func main() {
 			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))
 		}
 	}
+	chatOpts := []string{"cancel", "new"}
+	fList, err := listHistoryFiles(historyDir)
+	if err != nil {
+		panic(err)
+	}
+	chatOpts = append(chatOpts, fList...)
+	modal := tview.NewModal().
+		SetText("Chat actions:").
+		AddButtons(chatOpts).
+		SetDoneFunc(func(buttonIndex int, buttonLabel string) {
+			switch buttonLabel {
+			case "new":
+				// set chat body
+				chatBody.Messages = defaultStarter
+				textView.SetText(chatToText(showSystemMsgs))
+				chatFileLoaded = path.Join(historyDir, fmt.Sprintf("%d_chat.json", time.Now().Unix()))
+				pages.RemovePage("history")
+				return
+			// set text
+			case "cancel":
+				pages.RemovePage("history")
+				// pages.ShowPage("main")
+				return
+			default:
+				// fn := path.Join(historyDir, buttonLabel)
+				fn := buttonLabel
+				history, err := readHistoryChat(fn)
+				if err != nil {
+					logger.Error("failed to read history file", "filename", fn)
+					pages.RemovePage("history")
+					return
+				}
+				chatBody.Messages = history
+				textView.SetText(chatToText(showSystemMsgs))
+				chatFileLoaded = fn
+				pages.RemovePage("history")
+				return
+			}
+		})
 	textArea.SetMovedFunc(updateStatusLine)
 	updateStatusLine()
-	history := chatToText()
-	chatHistory := strings.Builder{}
-	for _, m := range history {
-		chatHistory.WriteString(m)
-		// textView.SetText(m)
-	}
-	textView.SetText(chatHistory.String())
-	// textView.SetText("<🤖>: Hello! What can I do for you?")
+	textView.SetText(chatToText(showSystemMsgs))
 	app.SetInputCapture(func(event *tcell.EventKey) *tcell.EventKey {
 		if botRespMode {
 			// do nothing while bot typing
 			return nil
 		}
+		if event.Key() == tcell.KeyF1 {
+			fList, err := listHistoryFiles(historyDir)
+			if err != nil {
+				panic(err)
+			}
+			chatOpts = append(chatOpts, fList...)
+			pages.AddPage("history", modal, true, true)
+			return nil
+		}
 		if event.Key() == tcell.KeyEscape {
 			fromRow, fromColumn, _, _ := textArea.GetCursor()
 			position.SetText(fmt.Sprintf(indexLine, fromRow, fromColumn, normalMode))
@@ -88,7 +131,8 @@ func main() {
 		}
 		return event
 	})
-	if err := app.SetRoot(flex,
+	pages.AddPage("main", flex, true, true)
+	if err := app.SetRoot(pages,
 		true).EnableMouse(true).Run(); err != nil {
 		panic(err)
 	}