X-Git-Url: https://git.r.bdr.sh/rbdr/mobius/blobdiff_plain/d80b37ca4c5801d5dbb5c4313a3d1d5fbdf2d593..3178ae580a3fe97d6a1167b4346d209f04e9b7e3:/hotline/ui.go?ds=sidebyside

diff --git a/hotline/ui.go b/hotline/ui.go
index e5acf82..6eba011 100644
--- a/hotline/ui.go
+++ b/hotline/ui.go
@@ -1 +1,532 @@
 package hotline
+
+import (
+	"bufio"
+	"fmt"
+	"github.com/gdamore/tcell/v2"
+	"github.com/rivo/tview"
+	"gopkg.in/yaml.v3"
+	"io/ioutil"
+	"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() *tview.List {
+	listing, err := GetListing(ui.HLClient.pref.Tracker)
+	if err != nil {
+		// TODO
+	}
+
+	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 |")
+
+	shortcut := 97 // rune for "a"
+	for i, srv := range listing {
+		addr := srv.Addr()
+		srvName := srv.Name
+		list.AddItem(string(srv.Name), string(srv.Description), rune(shortcut+i), func() {
+			ui.Pages.RemovePage("joinServer")
+
+			newJS := ui.renderJoinServerForm(string(srvName), 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.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()
+
+		out, err := yaml.Marshal(&ui.HLClient.pref)
+		if err != nil {
+			// TODO: handle err
+		}
+		// TODO: handle err
+		err = ioutil.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.JoinServer(addr, login, password); err != nil {
+		return fmt.Errorf("Error joining server: %v\n", err)
+	}
+
+	go func() {
+		// Create a new scanner for parsing incoming bytes into transaction tokens
+		scanner := bufio.NewScanner(ui.HLClient.Connection)
+		scanner.Split(transactionScanner)
+
+		// Scan for new transactions and handle them as they come in.
+		for scanner.Scan() {
+			// Make a new []byte slice and copy the scanner bytes to it.  This is critical to avoid a data race as the
+			// scanner re-uses the buffer for subsequent scans.
+			buf := make([]byte, len(scanner.Bytes()))
+			copy(buf, scanner.Bytes())
+
+			t, _, err := ReadTransaction(buf)
+			if err != nil {
+				break
+			}
+			if err := ui.HLClient.HandleTransaction(t); err != nil {
+				ui.HLClient.Logger.Errorw("Error handling transaction", "err", err)
+			}
+		}
+
+		if scanner.Err() == nil {
+			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
+		}
+		ui.Pages.SwitchToPage("home")
+
+	}()
+
+	return nil
+}
+
+func (ui *UI) renderJoinServerForm(name, server, login, password, backPage string, save, defaultConnect bool) *tview.Flex {
+	joinServerForm := tview.NewForm()
+	joinServerForm.
+		//	AddInputField("Name", server, 0, func(textToCheck string, lastChar rune) bool {
+		//	return false
+		// }, nil).
+		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.Logger.Infow("saving bookmark")
+			// TODO: Implement bookmark saving
+
+			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 = ioutil.WriteFile(ui.HLClient.cfgPath, out, 0666)
+			if err != nil {
+				panic(err)
+			}
+			// 		pref := ui.HLClient.pref
+		}).
+		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.Errorw("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.Errorw("err", "err", err)
+			}
+		}
+
+		// Show News
+		if event.Key() == tcell.KeyCtrlN {
+			if err := ui.HLClient.Send(*NewTransaction(tranGetMsgs, nil)); err != nil {
+				ui.HLClient.Logger.Errorw("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.Errorw("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.Fprintf(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() {
+			ui.trackerList = ui.getTrackerList()
+			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.Infow("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)
+	}
+}