package hotline
+
+import (
+ "context"
+ "fmt"
+ "github.com/gdamore/tcell/v2"
+ "github.com/rivo/tview"
+ "gopkg.in/yaml.v3"
+ "os"
+ "strconv"
+ "strings"
+)
+
+type UI struct {
+ chatBox *tview.TextView
+ chatInput *tview.InputField
+ App *tview.Application
+ Pages *tview.Pages
+ userList *tview.TextView
+ trackerList *tview.List
+ HLClient *Client
+}
+
+// pages
+const (
+ pageServerUI = "serverUI"
+)
+
+func NewUI(c *Client) *UI {
+ app := tview.NewApplication()
+ chatBox := tview.NewTextView().
+ SetScrollable(true).
+ SetDynamicColors(true).
+ SetWordWrap(true).
+ SetChangedFunc(func() {
+ app.Draw() // TODO: docs say this is bad but it's the only way to show content during initial render??
+ })
+ chatBox.Box.SetBorder(true).SetTitle("| Chat |")
+
+ chatInput := tview.NewInputField()
+ chatInput.
+ SetLabel("> ").
+ SetFieldBackgroundColor(tcell.ColorDimGray).
+ SetDoneFunc(func(key tcell.Key) {
+ // skip send if user hit enter with no other text
+ if len(chatInput.GetText()) == 0 {
+ return
+ }
+
+ _ = c.Send(
+ *NewTransaction(TranChatSend, nil,
+ NewField(FieldData, []byte(chatInput.GetText())),
+ ),
+ )
+ chatInput.SetText("") // clear the input field after chat send
+ })
+
+ chatInput.Box.SetBorder(true).SetTitle("Send")
+
+ userList := tview.
+ NewTextView().
+ SetDynamicColors(true).
+ SetChangedFunc(func() {
+ app.Draw() // TODO: docs say this is bad but it's the only way to show content during initial render??
+ })
+ userList.Box.SetBorder(true).SetTitle("Users")
+
+ return &UI{
+ App: app,
+ chatBox: chatBox,
+ Pages: tview.NewPages(),
+ chatInput: chatInput,
+ userList: userList,
+ trackerList: tview.NewList(),
+ HLClient: c,
+ }
+}
+
+func (ui *UI) showBookmarks() *tview.List {
+ list := tview.NewList()
+ list.SetInputCapture(func(event *tcell.EventKey) *tcell.EventKey {
+ if event.Key() == tcell.KeyEsc {
+ ui.Pages.SwitchToPage("home")
+ }
+ return event
+ })
+ list.Box.SetBorder(true).SetTitle("| Bookmarks |")
+
+ shortcut := 97 // rune for "a"
+ for i, srv := range ui.HLClient.Pref.Bookmarks {
+ addr := srv.Addr
+ login := srv.Login
+ pass := srv.Password
+ list.AddItem(srv.Name, srv.Addr, rune(shortcut+i), func() {
+ ui.Pages.RemovePage("joinServer")
+
+ newJS := ui.renderJoinServerForm("", addr, login, pass, "bookmarks", true, true)
+
+ ui.Pages.AddPage("joinServer", newJS, true, true)
+ })
+ }
+
+ return list
+}
+
+func (ui *UI) getTrackerList(servers []ServerRecord) *tview.List {
+ list := tview.NewList()
+ list.SetInputCapture(func(event *tcell.EventKey) *tcell.EventKey {
+ if event.Key() == tcell.KeyEsc {
+ ui.Pages.SwitchToPage("home")
+ }
+ return event
+ })
+ list.Box.SetBorder(true).SetTitle("| Servers |")
+
+ const shortcut = 97 // rune for "a"
+ for i, _ := range servers {
+ srv := servers[i]
+ list.AddItem(string(srv.Name), string(srv.Description), rune(shortcut+i), func() {
+ ui.Pages.RemovePage("joinServer")
+
+ newJS := ui.renderJoinServerForm(string(srv.Name), srv.Addr(), GuestAccount, "", trackerListPage, false, true)
+
+ ui.Pages.AddPage("joinServer", newJS, true, true)
+ ui.Pages.ShowPage("joinServer")
+ })
+ }
+
+ return list
+}
+
+func (ui *UI) renderSettingsForm() *tview.Flex {
+ iconStr := strconv.Itoa(ui.HLClient.Pref.IconID)
+ settingsForm := tview.NewForm()
+ settingsForm.AddInputField("Your Name", ui.HLClient.Pref.Username, 0, nil, nil)
+ settingsForm.AddInputField("IconID", iconStr, 0, func(idStr string, _ rune) bool {
+ _, err := strconv.Atoi(idStr)
+ return err == nil
+ }, nil)
+ settingsForm.AddInputField("Tracker", ui.HLClient.Pref.Tracker, 0, nil, nil)
+ settingsForm.AddCheckbox("Enable Terminal Bell", ui.HLClient.Pref.EnableBell, nil)
+ settingsForm.AddButton("Save", func() {
+ usernameInput := settingsForm.GetFormItem(0).(*tview.InputField).GetText()
+ if len(usernameInput) == 0 {
+ usernameInput = "unnamed"
+ }
+ ui.HLClient.Pref.Username = usernameInput
+ iconStr = settingsForm.GetFormItem(1).(*tview.InputField).GetText()
+ ui.HLClient.Pref.IconID, _ = strconv.Atoi(iconStr)
+ ui.HLClient.Pref.Tracker = settingsForm.GetFormItem(2).(*tview.InputField).GetText()
+ ui.HLClient.Pref.EnableBell = settingsForm.GetFormItem(3).(*tview.Checkbox).IsChecked()
+
+ out, err := yaml.Marshal(&ui.HLClient.Pref)
+ if err != nil {
+ // TODO: handle err
+ }
+ // TODO: handle err
+ err = os.WriteFile(ui.HLClient.cfgPath, out, 0666)
+ if err != nil {
+ println(ui.HLClient.cfgPath)
+ panic(err)
+ }
+ ui.Pages.RemovePage("settings")
+ })
+ settingsForm.SetBorder(true)
+ settingsForm.SetCancelFunc(func() {
+ ui.Pages.RemovePage("settings")
+ })
+ settingsPage := tview.NewFlex().SetDirection(tview.FlexRow)
+ settingsPage.Box.SetBorder(true).SetTitle("Settings")
+ settingsPage.AddItem(settingsForm, 0, 1, true)
+
+ centerFlex := tview.NewFlex().
+ AddItem(nil, 0, 1, false).
+ AddItem(tview.NewFlex().
+ SetDirection(tview.FlexRow).
+ AddItem(nil, 0, 1, false).
+ AddItem(settingsForm, 15, 1, true).
+ AddItem(nil, 0, 1, false), 40, 1, true).
+ AddItem(nil, 0, 1, false)
+
+ return centerFlex
+}
+
+func (ui *UI) joinServer(addr, login, password string) error {
+ // append default port to address if no port supplied
+ if len(strings.Split(addr, ":")) == 1 {
+ addr += ":5500"
+ }
+ if err := ui.HLClient.Connect(addr, login, password); err != nil {
+ return fmt.Errorf("Error joining server: %v\n", err)
+ }
+
+ go func() {
+ if err := ui.HLClient.HandleTransactions(context.TODO()); err != nil {
+ ui.Pages.SwitchToPage("home")
+ }
+
+ loginErrModal := tview.NewModal().
+ AddButtons([]string{"Ok"}).
+ SetText("The server connection has closed.").
+ SetDoneFunc(func(buttonIndex int, buttonLabel string) {
+ ui.Pages.SwitchToPage("home")
+ })
+ loginErrModal.Box.SetTitle("Server Connection Error")
+
+ ui.Pages.AddPage("loginErr", loginErrModal, false, true)
+ ui.App.Draw()
+ }()
+
+ return nil
+}
+
+func (ui *UI) renderJoinServerForm(name, server, login, password, backPage string, save, defaultConnect bool) *tview.Flex {
+ joinServerForm := tview.NewForm()
+ joinServerForm.
+ AddInputField("Server", server, 0, nil, nil).
+ AddInputField("Login", login, 0, nil, nil).
+ AddPasswordField("Password", password, 0, '*', nil).
+ AddCheckbox("Save", save, func(checked bool) {
+ ui.HLClient.Pref.AddBookmark(
+ joinServerForm.GetFormItem(0).(*tview.InputField).GetText(),
+ joinServerForm.GetFormItem(0).(*tview.InputField).GetText(),
+ joinServerForm.GetFormItem(1).(*tview.InputField).GetText(),
+ joinServerForm.GetFormItem(2).(*tview.InputField).GetText(),
+ )
+
+ out, err := yaml.Marshal(ui.HLClient.Pref)
+ if err != nil {
+ panic(err)
+ }
+
+ err = os.WriteFile(ui.HLClient.cfgPath, out, 0666)
+ if err != nil {
+ panic(err)
+ }
+ }).
+ AddButton("Cancel", func() {
+ ui.Pages.SwitchToPage(backPage)
+ }).
+ AddButton("Connect", func() {
+ srvAddr := joinServerForm.GetFormItem(0).(*tview.InputField).GetText()
+ loginInput := joinServerForm.GetFormItem(1).(*tview.InputField).GetText()
+ err := ui.joinServer(
+ srvAddr,
+ loginInput,
+ joinServerForm.GetFormItem(2).(*tview.InputField).GetText(),
+ )
+ if name == "" {
+ name = fmt.Sprintf("%s@%s", loginInput, srvAddr)
+ }
+ ui.HLClient.serverName = name
+
+ if err != nil {
+ ui.HLClient.Logger.Error("login error", "err", err)
+ loginErrModal := tview.NewModal().
+ AddButtons([]string{"Oh no"}).
+ SetText(err.Error()).
+ SetDoneFunc(func(buttonIndex int, buttonLabel string) {
+ ui.Pages.SwitchToPage(backPage)
+ })
+
+ ui.Pages.AddPage("loginErr", loginErrModal, false, true)
+ }
+
+ // Save checkbox
+ if joinServerForm.GetFormItem(3).(*tview.Checkbox).IsChecked() {
+ // TODO: implement bookmark saving
+ }
+ })
+
+ joinServerForm.Box.SetBorder(true).SetTitle("| Connect |")
+ joinServerForm.SetInputCapture(func(event *tcell.EventKey) *tcell.EventKey {
+ if event.Key() == tcell.KeyEscape {
+ ui.Pages.SwitchToPage(backPage)
+ }
+ return event
+ })
+
+ if defaultConnect {
+ joinServerForm.SetFocus(5)
+ }
+
+ joinServerPage := tview.NewFlex().
+ AddItem(nil, 0, 1, false).
+ AddItem(tview.NewFlex().
+ SetDirection(tview.FlexRow).
+ AddItem(nil, 0, 1, false).
+ AddItem(joinServerForm, 14, 1, true).
+ AddItem(nil, 0, 1, false), 40, 1, true).
+ AddItem(nil, 0, 1, false)
+
+ return joinServerPage
+}
+
+func (ui *UI) renderServerUI() *tview.Flex {
+ ui.chatBox.SetText("") // clear any previously existing chatbox text
+ commandList := tview.NewTextView().SetDynamicColors(true)
+ commandList.
+ SetText("[yellow]^n[-::]: Read News [yellow]^p[-::]: Post News\n[yellow]^l[-::]: View Logs [yellow]^f[-::]: View Files\n").
+ SetBorder(true).
+ SetTitle("| Keyboard Shortcuts| ")
+
+ modal := tview.NewModal().
+ SetText("Disconnect from the server?").
+ AddButtons([]string{"Cancel", "Exit"}).
+ SetFocus(1)
+ modal.SetDoneFunc(func(buttonIndex int, buttonLabel string) {
+ if buttonIndex == 1 {
+ _ = ui.HLClient.Disconnect()
+ ui.Pages.RemovePage(pageServerUI)
+ ui.Pages.SwitchToPage("home")
+ } else {
+ ui.Pages.HidePage("modal")
+ }
+ })
+
+ serverUI := tview.NewFlex().
+ AddItem(tview.NewFlex().
+ SetDirection(tview.FlexRow).
+ AddItem(commandList, 4, 0, false).
+ AddItem(ui.chatBox, 0, 8, false).
+ AddItem(ui.chatInput, 3, 0, true), 0, 1, true).
+ AddItem(ui.userList, 25, 1, false)
+ serverUI.SetBorder(true).SetTitle("| Mobius - Connected to " + ui.HLClient.serverName + " |").SetTitleAlign(tview.AlignLeft)
+ serverUI.SetInputCapture(func(event *tcell.EventKey) *tcell.EventKey {
+ if event.Key() == tcell.KeyEscape {
+ ui.Pages.AddPage("modal", modal, false, true)
+ }
+
+ // List files
+ if event.Key() == tcell.KeyCtrlF {
+ if err := ui.HLClient.Send(*NewTransaction(TranGetFileNameList, nil)); err != nil {
+ ui.HLClient.Logger.Error("err", "err", err)
+ }
+ }
+
+ // Show News
+ if event.Key() == tcell.KeyCtrlN {
+ if err := ui.HLClient.Send(*NewTransaction(TranGetMsgs, nil)); err != nil {
+ ui.HLClient.Logger.Error("err", "err", err)
+ }
+ }
+
+ // Post news
+ if event.Key() == tcell.KeyCtrlP {
+ newsFlex := tview.NewFlex()
+ newsFlex.SetBorderPadding(0, 0, 1, 1)
+ newsPostTextArea := tview.NewTextView()
+ newsPostTextArea.SetBackgroundColor(tcell.ColorDarkSlateGrey)
+ newsPostTextArea.SetChangedFunc(func() {
+ ui.App.Draw() // TODO: docs say this is bad but it's the only way to show content during initial render??
+ })
+
+ newsPostForm := tview.NewForm().
+ SetButtonsAlign(tview.AlignRight).
+ // AddButton("Cancel", nil). // TODO: implement cancel button behavior
+ AddButton("Send", nil)
+ newsPostForm.SetInputCapture(func(event *tcell.EventKey) *tcell.EventKey {
+ switch event.Key() {
+ case tcell.KeyEscape:
+ ui.Pages.RemovePage("newsInput")
+ case tcell.KeyTab:
+ ui.App.SetFocus(newsPostTextArea)
+ case tcell.KeyEnter:
+ newsText := strings.ReplaceAll(newsPostTextArea.GetText(true), "\n", "\r")
+ if len(newsText) == 0 {
+ return event
+ }
+ err := ui.HLClient.Send(
+ *NewTransaction(TranOldPostNews, nil,
+ NewField(FieldData, []byte(newsText)),
+ ),
+ )
+ if err != nil {
+ ui.HLClient.Logger.Error("Error posting news", "err", err)
+ // TODO: display errModal to user
+ }
+ ui.Pages.RemovePage("newsInput")
+ }
+
+ return event
+ })
+
+ newsFlex.
+ SetDirection(tview.FlexRow).
+ SetBorder(true).
+ SetTitle("| Post Message |")
+
+ newsPostTextArea.SetInputCapture(func(event *tcell.EventKey) *tcell.EventKey {
+ switch event.Key() {
+ case tcell.KeyEscape:
+ ui.Pages.RemovePage("newsInput")
+ case tcell.KeyTab:
+ ui.App.SetFocus(newsPostForm)
+ case tcell.KeyEnter:
+ _, _ = fmt.Fprintf(newsPostTextArea, "\n")
+ default:
+ const windowsBackspaceRune = 8
+ const macBackspaceRune = 127
+ switch event.Rune() {
+ case macBackspaceRune, windowsBackspaceRune:
+ curTxt := newsPostTextArea.GetText(true)
+ if len(curTxt) > 0 {
+ curTxt = curTxt[:len(curTxt)-1]
+ newsPostTextArea.SetText(curTxt)
+ }
+ default:
+ _, _ = fmt.Fprint(newsPostTextArea, string(event.Rune()))
+ }
+ }
+
+ return event
+ })
+
+ newsFlex.AddItem(newsPostTextArea, 10, 0, true)
+ newsFlex.AddItem(newsPostForm, 3, 0, false)
+
+ newsPostPage := tview.NewFlex().
+ AddItem(nil, 0, 1, false).
+ AddItem(tview.NewFlex().
+ SetDirection(tview.FlexRow).
+ AddItem(nil, 0, 1, false).
+ AddItem(newsFlex, 15, 1, true).
+ // AddItem(newsPostForm, 3, 0, false).
+ AddItem(nil, 0, 1, false), 40, 1, false).
+ AddItem(nil, 0, 1, false)
+
+ ui.Pages.AddPage("newsInput", newsPostPage, true, true)
+ ui.App.SetFocus(newsPostTextArea)
+ }
+
+ return event
+ })
+ return serverUI
+}
+
+func (ui *UI) Start() {
+ home := tview.NewFlex().SetDirection(tview.FlexRow)
+ home.Box.SetBorder(true).SetTitle("| Mobius v" + VERSION + " |").SetTitleAlign(tview.AlignLeft)
+ mainMenu := tview.NewList()
+
+ bannerItem := tview.NewTextView().
+ SetText(randomBanner()).
+ SetDynamicColors(true).
+ SetTextAlign(tview.AlignCenter)
+
+ home.AddItem(
+ tview.NewFlex().AddItem(bannerItem, 0, 1, false),
+ 14, 1, false)
+ home.AddItem(tview.NewFlex().
+ AddItem(nil, 0, 1, false).
+ AddItem(mainMenu, 0, 1, true).
+ AddItem(nil, 0, 1, false),
+ 0, 1, true,
+ )
+
+ mainMenu.AddItem("Join Server", "", 'j', func() {
+ joinServerPage := ui.renderJoinServerForm("", "", GuestAccount, "", "home", false, false)
+ ui.Pages.AddPage("joinServer", joinServerPage, true, true)
+ }).
+ AddItem("Bookmarks", "", 'b', func() {
+ ui.Pages.AddAndSwitchToPage("bookmarks", ui.showBookmarks(), true)
+ }).
+ AddItem("Browse Tracker", "", 't', func() {
+ listing, err := GetListing(ui.HLClient.Pref.Tracker)
+ if err != nil {
+ errMsg := fmt.Sprintf("Error fetching tracker results:\n%v", err)
+ errModal := tview.NewModal()
+ errModal.SetText(errMsg)
+ errModal.AddButtons([]string{"Cancel"})
+ errModal.SetDoneFunc(func(buttonIndex int, buttonLabel string) {
+ ui.Pages.RemovePage("errModal")
+ })
+ ui.Pages.RemovePage("joinServer")
+ ui.Pages.AddPage("errModal", errModal, false, true)
+ return
+ }
+ ui.trackerList = ui.getTrackerList(listing)
+ ui.Pages.AddAndSwitchToPage("trackerList", ui.trackerList, true)
+ }).
+ AddItem("Settings", "", 's', func() {
+ ui.Pages.AddPage("settings", ui.renderSettingsForm(), true, true)
+ }).
+ AddItem("Quit", "", 'q', func() {
+ ui.App.Stop()
+ })
+
+ ui.Pages.AddPage("home", home, true, true)
+
+ // App level input capture
+ ui.App.SetInputCapture(func(event *tcell.EventKey) *tcell.EventKey {
+ if event.Key() == tcell.KeyCtrlC {
+ ui.HLClient.Logger.Info("Exiting")
+ ui.App.Stop()
+ os.Exit(0)
+ }
+ // Show Logs
+ if event.Key() == tcell.KeyCtrlL {
+ ui.HLClient.DebugBuf.TextView.ScrollToEnd()
+ ui.HLClient.DebugBuf.TextView.SetBorder(true).SetTitle("Logs")
+ ui.HLClient.DebugBuf.TextView.SetDoneFunc(func(key tcell.Key) {
+ if key == tcell.KeyEscape {
+ ui.Pages.RemovePage("logs")
+ }
+ })
+
+ ui.Pages.AddPage("logs", ui.HLClient.DebugBuf.TextView, true, true)
+ }
+ return event
+ })
+
+ if err := ui.App.SetRoot(ui.Pages, true).SetFocus(ui.Pages).Run(); err != nil {
+ ui.App.Stop()
+ os.Exit(1)
+ }
+}
git.r.bdr.sh / rbdr / mobius / blobdiff