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Ryan Fox 2 years ago
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  1. 2
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  2. 674
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  3. 8
      README.txt
  4. 92
      channels.go
  5. 116
      chat.go
  6. 89
      common.go
  7. 53
      config.go
  8. 157
      login.go
  9. 18
      main.go
  10. 93
      model.go
  11. 365
      thelounge.go

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linger
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GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
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parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<http://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.

8
README.txt
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linger
Barebones TUI for private instances of The Lounge.
Requires Go, gosf-socketio, Bubble Tea, Bubbles, and Termenv.
Send questions, issues, and patches to flewkey@2a03.party.
Controls: CTRL+S to select a channel; Arrow keys to scroll
This program is broken and needs to be completely rewritten.

92
channels.go
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package main
import (
tea "github.com/charmbracelet/bubbletea"
)
type channelsModel struct {
index int
}
func doOpenChannel(conn *loungeConnection, channel *loungeChannel) tea.Cmd {
return func() tea.Msg {
loungeChannelOpen(conn, channel)
return 1
}
}
func channelsModelInit() channelsModel {
return channelsModel{0}
}
func (m mainModel) channelsInit() tea.Cmd {
return nil
}
func (m mainModel) channelsView() string {
height := m.height - 1
pages := []string{}
pageIndex := []int{}
buf := ""
curIndex := 0
curPage := 0
curLine := 0
for i := 0; i < len(m.conn.Networks); i++ {
net := m.conn.Networks[i]
for i := 0; i < len(net.Channels); i++ {
if net.Channels[i].Type != "lobby" {
buf += "\t"
}
if m.channelsModel.index == curIndex {
buf += highlightText(net.Channels[i].Name) + "\n"
} else {
buf += net.Channels[i].Name + "\n"
}
pageIndex = append(pageIndex, curPage)
curIndex++
curLine++
if curLine >= height - 1 {
curPage++
curLine = 0
pages = append(pages, buf[:len(buf)-1])
buf = ""
}
}
buf += "\n"
curLine += 1
}
if buf != "" {
pages = append(pages, buf[:len(buf)-1])
}
s := "Select a channel\n"
if len(pageIndex) > 0 {
if m.channelsModel.index < len(pageIndex) {
s += pages[pageIndex[m.channelsModel.index]]
} else {
s += pages[len(pages) - 1]
}
} else {
s += "No networks found"
}
return s
}
func (m mainModel) channelsUpdate(msg tea.Msg) (tea.Model, tea.Cmd) {
var cmd tea.Cmd
channels := []*loungeChannel{}
for i := 0; i < len(m.conn.Networks); i++ {
net := m.conn.Networks[i]
for i := 0; i < len(net.Channels); i++ {
channels = append(channels, &net.Channels[i])
}
}
index := m.channelsModel.index
_, index, button := updateIndex(msg, m.channelsModel.index, len(channels), true, []int{})
m.channelsModel.index = index
if button && index < len(channels) {
cmd = doOpenChannel(m.conn, channels[index])
m.view = viewChat
m.chatModel.chatInput.SetValue("")
}
return m, cmd
}

116
chat.go
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package main
import (
"strings"
tea "github.com/charmbracelet/bubbletea"
te "github.com/muesli/termenv"
"github.com/charmbracelet/bubbles/textinput"
)
type chatModel struct {
scroll int
chatInput textinput.Model
}
func doSendMessage(conn *loungeConnection, channel int, text string) tea.Cmd {
return func() tea.Msg {
loungeChannelSend(conn, channel, text)
return 1
}
}
func getMessageString(channelName string, message loungeMessage) string {
timestamp := message.Time[11:16]
switch message.Type {
case messageMessage, messageNotice:
if message.From.Nick == "" {
return timestamp + " " + message.Text + "\n"
} else {
return timestamp + " <" + message.From.Mode + message.From.Nick + "> " + message.Text + "\n"
}
case messageAction:
return timestamp + " " + te.String(message.From.Mode + message.From.Nick + " " + message.Text).Italic().String() + "\n"
case messageTopic:
return timestamp + " " + te.String(message.From.Mode + message.From.Nick + " changed the topic to: " + message.Text).Italic().String() + "\n"
case messageError:
return timestamp + " " + te.String(message.Text).Foreground(color(errorColor)).String() + "\n"
}
return ""
}
func getMessageCounts(m mainModel) (int, int, int) {
maxMessages := m.height - 2
messageCount := maxMessages
if messageCount > len(m.conn.Channel.Filtered) {
messageCount = len(m.conn.Channel.Filtered)
}
maxScroll := len(m.conn.Channel.Filtered) - messageCount
return maxMessages, messageCount, maxScroll
}
func chatModelInit() chatModel {
input := textinput.NewModel()
input.Placeholder = "Enter a chat message"
input.CharLimit = 64
input.Focus()
return chatModel{0, input}
}
func (m mainModel) chatInit() tea.Cmd {
return nil
}
func (m mainModel) chatView() string {
channel := m.conn.Channel
if channel == nil {
return "No channel open"
}
s := te.String(channel.Name).Reverse().String() + " "
maxTopicLen := m.width - len(channel.Name) - 1
if maxTopicLen < 3 {
s += "\n"
} else if len(channel.Topic) <= maxTopicLen {
s += highlightText(channel.Topic) + "\n"
} else {
s += highlightText(channel.Topic[:maxTopicLen-3] + "...") + "\n"
}
maxMessages, messageCount, maxScroll := getMessageCounts(m)
if m.chatModel.scroll > maxScroll {
m.chatModel.scroll = maxScroll
}
for i := 0; i < messageCount; i++ {
index := len(channel.Filtered) - messageCount - m.chatModel.scroll + i
s += getMessageString(channel.Name, channel.Filtered[index])
}
s += strings.Repeat("\n", maxMessages - messageCount)
s += m.chatModel.chatInput.View()
return s
}
func (m mainModel) chatUpdate(msg tea.Msg) (tea.Model, tea.Cmd) {
var (
cmd tea.Cmd
cmds []tea.Cmd
)
switch msg := msg.(type) {
case tea.KeyMsg:
if msg.Type == tea.KeyEnter && m.chatModel.chatInput.Value() != "" {
cmd = doSendMessage(m.conn, m.conn.Channel.Id, m.chatModel.chatInput.Value())
cmds = append(cmds, cmd)
m.chatModel.chatInput.SetValue("")
}
_, _, maxScroll := getMessageCounts(m)
if m.chatModel.scroll > maxScroll {
m.chatModel.scroll = maxScroll
}
if msg.Type == tea.KeyUp {
m.chatModel.scroll += 1
}
if msg.Type == tea.KeyDown && m.chatModel.scroll > 0 {
m.chatModel.scroll -= 1
}
}
m.chatModel.chatInput, cmd = m.chatModel.chatInput.Update(msg)
cmds = append(cmds, cmd)
return m, tea.Batch(cmds...)
}

89
common.go
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package main
import (
tea "github.com/charmbracelet/bubbletea"
te "github.com/muesli/termenv"
"github.com/charmbracelet/bubbles/textinput"
)
var (
color = te.ColorProfile().Color
errorColor = "9"
blurredColor = "8"
focusedColor = "3"
focusedPrompt = te.String("> ").Foreground(color(focusedColor)).String()
blurredPrompt = "> "
)
func highlightText(text string) string {
return te.String(text).Foreground(color(focusedColor)).String()
}
func getButton(title string, focused bool) string {
clr := color(blurredColor)
if focused == true {
clr = color(focusedColor)
}
return "[ " + te.String(title).Foreground(clr).String() + " ]"
}
func updateIndex(msg tea.Msg, index int, length int, bindVim bool, buttons []int) (bool, int, bool) {
switch msg := msg.(type) {
case tea.KeyMsg:
s := msg.String()
inputs := []string{"down", "tab", "j", "enter", "up", "shift+tab", "k"}
update := false
for i := 0; i < len(inputs); i++ {
if s == inputs[i] {
update = true
}
}
if !update {
return false, index, false
}
if !bindVim && (s == "j" || s == "k") {
return false, index, false
}
if s == "down" || s == "tab" || s == "j" || s == "enter" {
button := false
if len(buttons) == 0 {
button = true;
} else {
for i := 0; i < len(buttons); i++ {
if index == buttons[i] {
button = true
}
}
}
if s == "enter" && button {
return false, index, true
}
if index >= length - 1 {
return true, 0, false
}
index++
return true, index, false
} else {
if index <= 0 {
return true, length - 1, false
}
index--
return true, index, false
}
}
return false, index, false
}
func inputFocus(input textinput.Model) textinput.Model {
input.Focus()
input.Prompt = focusedPrompt
input.TextColor = focusedColor
return input
}
func inputBlur(input textinput.Model) textinput.Model {
input.Blur()
input.Prompt = blurredPrompt
input.TextColor = ""
return input
}

53
config.go
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package main
import (
"os"
"log"
"io/ioutil"
"encoding/json"
)
type config struct {
Host string `json:"host"`
Path string `json:"path"`
User string `json:"user"`
Token string `json:"token"`
}
func handleTilde(in string) string {
if in[0] != '~' {
return in
}
return os.Getenv("HOME") + in[1:]
}
func configPath() string {
confHome := os.Getenv("XDG_CONFIG_HOME")
if confHome == "" {
confHome = "~/.config"
}
confDir := handleTilde(confHome) + "/linger"
_ = os.Mkdir(confDir, 0755)
return confDir + "/config.json"
}
func configLoad() *config {
conf := config{}
data, err := ioutil.ReadFile(configPath())
if err != nil {
return &conf
}
err = json.Unmarshal(data, &conf)
if err != nil {
return &conf
}
return &conf
}
func configWrite(conf *config) {
data, err := json.Marshal(conf)
err = ioutil.WriteFile(configPath(), data, 0644)
if err != nil {
log.Fatal("Failed to write config")
}
}

157
login.go
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package main
import (
tea "github.com/charmbracelet/bubbletea"
"github.com/charmbracelet/bubbles/textinput"
)
type loginModel struct {
index int
hostInput textinput.Model
pathInput textinput.Model
userInput textinput.Model
passInput textinput.Model
loginButton string
message string
}
func doConnect(conf *config, conn *loungeConnection) tea.Cmd {
conf.Host = conn.Host
conf.Path = conn.Path
conf.User = conn.User
configWrite(conf)
return func() tea.Msg {
loungeConnect(conn)
return 1
}
}
func loginModelInit(conf *config) loginModel {
host := textinput.NewModel()
host.Placeholder = "Host"
host.Prompt = focusedPrompt
host.TextColor = focusedColor
host.CharLimit = 64
host.Focus()
host.SetValue(conf.Host)
path := textinput.NewModel()
path.Placeholder = "Path"
path.Prompt = blurredPrompt
path.CharLimit = 64
path.SetValue(conf.Path)
user := textinput.NewModel()
user.Placeholder = "Username"
user.Prompt = blurredPrompt
user.CharLimit = 32
user.SetValue(conf.User)
pass := textinput.NewModel()
pass.Placeholder = "Password"
pass.Prompt = blurredPrompt
pass.CharLimit = 64
pass.EchoMode = textinput.EchoNone
loginButton := getButton("Login", false)
return loginModel{0, host, path, user, pass, loginButton, ""}
}
func (m mainModel) loginInit(conf *config) tea.Cmd {
if conf.Token != "" {
m.conn.Host = m.conf.Host
m.conn.Path = m.conf.Path
m.conn.User = m.conf.User
m.conn.Pass = ""
m.conn.Token = m.conf.Token
return doConnect(m.conf, m.conn)
}
return nil
}
func (m mainModel) loginView() string {
s := "Log in to The Lounge\n\n"
inputs := []string{
m.loginModel.hostInput.View(),
m.loginModel.pathInput.View(),
m.loginModel.userInput.View(),
m.loginModel.passInput.View(),
}
for i := 0; i < len(inputs); i++ {
s += inputs[i]
if i < len(inputs)-1 {
s += "\n"
}
}
s += "\n\n" + m.loginModel.loginButton + "\n"
if m.loginModel.message != "" {
s += "\n" + m.loginModel.message + "\n"
}
return s
}
func (m mainModel) loginUpdate(msg tea.Msg) (tea.Model, tea.Cmd) {
var (
cmd tea.Cmd
cmds []tea.Cmd
)
index := m.loginModel.index
refocus, index, button := updateIndex(msg, m.loginModel.index, 5, false, []int{4})
m.loginModel.index = index
if m.conn.Error != "" {
m.loginModel.message = m.conn.Error
}
if refocus {
inputs := []textinput.Model{
m.loginModel.hostInput,
m.loginModel.pathInput,
m.loginModel.userInput,
m.loginModel.passInput,
}
for i := 0; i < len(inputs); i++ {
if i == m.loginModel.index {
inputs[i] = inputFocus(inputs[i])
} else {
inputs[i] = inputBlur(inputs[i])
}
}
if m.loginModel.index == len(inputs) {
m.loginModel.loginButton = getButton("Login", true)
} else {
m.loginModel.loginButton = getButton("Login", false)
}
m.loginModel.hostInput = inputs[0]
m.loginModel.pathInput = inputs[1]
m.loginModel.userInput = inputs[2]
m.loginModel.passInput = inputs[3]
}
if button {
m.conn.Host = m.loginModel.hostInput.Value()
m.conn.Path = m.loginModel.pathInput.Value()
m.conn.User = m.loginModel.userInput.Value()
m.conn.Pass = m.loginModel.passInput.Value()
cmd = doConnect(m.conf, m.conn)
cmds = append(cmds, cmd)
}
m, cmd = loginUpdateInputs(msg, m)
cmds = append(cmds, cmd)
return m, tea.Batch(cmds...)
}
func loginUpdateInputs(msg tea.Msg, m mainModel) (mainModel, tea.Cmd) {
var (
cmd tea.Cmd
cmds []tea.Cmd
)
inputs := []textinput.Model{
m.loginModel.hostInput,
m.loginModel.pathInput,
m.loginModel.userInput,
m.loginModel.passInput,
}
for i := 0; i < len(inputs); i++ {
inputs[i], cmd = inputs[i].Update(msg)
cmds = append(cmds, cmd)
}
m.loginModel.hostInput = inputs[0]
m.loginModel.pathInput = inputs[1]
m.loginModel.userInput = inputs[2]
m.loginModel.passInput = inputs[3]
return m, tea.Batch(cmds...)
}

18
main.go
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package main
import (
"log"
tea "github.com/charmbracelet/bubbletea"
)
var model mainModel
func main() {
p := tea.NewProgram(mainModelInit())
p.EnterAltScreen()
err := p.Start()
p.ExitAltScreen()
if err != nil {
log.Fatal(err)
}
}

93
model.go
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package main
import (
tea "github.com/charmbracelet/bubbletea"
)
type viewType int
const (
viewNone viewType = 0
viewLogin viewType = 1
viewChannels viewType = 2
viewChat viewType = 3
)
type mainModel struct {
conf *config
conn *loungeConnection
view viewType
width int
height int
loginModel loginModel
channelsModel channelsModel
chatModel chatModel
}
func mainModelInit() mainModel {
conf := configLoad()
conn := &loungeConnection{User: conf.User, Token: conf.Token, Action: actionNone}
login := loginModelInit(conf)
channels := channelsModelInit()
chat := chatModelInit()
return mainModel{conf, conn, viewLogin, 0, 0, login, channels, chat}
}
func (m mainModel) Init() tea.Cmd {
var (
cmd tea.Cmd
cmds []tea.Cmd
)
cmd = m.loginInit(m.conf)
cmds = append(cmds, cmd)
cmd = m.channelsInit()
cmds = append(cmds, cmd)
cmd = m.chatInit()
cmds = append(cmds, cmd)
return tea.Batch(cmds...)
}
func (m mainModel) View() string {
s := ""
switch m.view {
case viewLogin:
s = m.loginView()
case viewChannels:
s = m.channelsView()
case viewChat:
s = m.chatView()
}
return s
}
func (m mainModel) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
var model tea.Model = m
var cmd tea.Cmd = nil
switch msg := msg.(type) {
case tea.WindowSizeMsg:
if m.conn.Action != actionNone {
m = connActionHandle(m)
} else {
m.width = msg.Width
m.height = msg.Height
}
case tea.KeyMsg:
switch msg.String() {
case "ctrl+c", "esc":
return m, tea.Quit
case "ctrl+s":
if m.view != viewLogin {
m.view = viewChannels
}
}
}
switch m.view {
case viewLogin:
model, cmd = m.loginUpdate(msg)
case viewChannels:
model, cmd = m.channelsUpdate(msg)
case viewChat:
model, cmd = m.chatUpdate(msg)
}
return model, cmd
}

365
thelounge.go
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package main
import (
"log"
"time"
"syscall"
gosocketio "github.com/ambelovsky/gosf-socketio"
"github.com/ambelovsky/gosf-socketio/transport"
)
var conn *loungeConnection
type loungeAuth struct {
User string `json:"user"`
Pass string `json:"password"`
Token string `json:"token"`
}
type loungeChannel struct {
Name string `json:"name"`
Type string `json:"type"`
Id int `json:"id"`
Topic string `json:"topic"`
Messages []loungeMessage `json:"messages"`
Filtered []loungeMessage
}
type loungeNetwork struct {
Uuid string `json:"uuid"`
Name string `json:"name"`
Channels []loungeChannel `json:"channels"`
}
type loungeInit struct {
Token string `json:"token"`
Networks []loungeNetwork `json:"networks"`
}
type loungeJoin struct {
Network string `json:"network"`
Channel loungeChannel `json:"chan"`
Index int `json:"index"`
}
type loungePart struct {
Channel int `json:"chan"`
}
type loungeFrom struct {
Mode string `json:"mode"`
Nick string `json:"nick"`
}
type loungeMessageType string
const (
messageMessage loungeMessageType = "message"
messageAction loungeMessageType = "action"
messageMode loungeMessageType = "mode"
messageTopic loungeMessageType = "topic"
messageNotice loungeMessageType = "notice"
messageError loungeMessageType = "error"
)
type loungeMessage struct {
From loungeFrom `json:"from"`
Highlight bool `json:"highlight"`
Id int `json:"id"`
Self bool `json:"self"`
Text string `json:"text"`
Time string `json:"time"`
Type loungeMessageType `json:"type"`
}
type loungeNewMessage struct {
Channel int `json:"chan"`
Message loungeMessage `json:"msg"`
Unread int `json:"unread"`
}
type loungeMoreRequest struct {
Target int `json:"target"`
LastId int `json:"lastId"`
Condensed bool `json:"condensed"`
}
type loungeMore struct {
Channel int `json:"chan"`
Messages []loungeMessage `json:"messages"`
TotalMessages int `json:"totalMessages"`
}
type loungeInput struct {
Target int `json:"target"`
Text string `json:"text"`
}
type loungeActionType int
const (
actionNone loungeActionType = 0
actionConnected loungeActionType = 1
actionDisconnected loungeActionType = 2
actionAuthSuccess loungeActionType = 3
actionAuthFailed loungeActionType = 4
actionInit loungeActionType = 5
actionJoin loungeActionType = 6
actionPart loungeActionType = 7
actionOpen loungeActionType = 8
actionMore loungeActionType = 9
actionNewMessage loungeActionType = 10
)
type loungeConnection struct {
Error string
Client *gosocketio.Client
Host string
Path string
User string
Pass string
Token string
Channel *loungeChannel
Networks []loungeNetwork
Action loungeActionType
}
func loungeFindChannel(conn *loungeConnection, channel int) *loungeChannel {
for i := 0; i < len(conn.Networks); i++ {
net := conn.Networks[i]
for i := 0; i < len(net.Channels); i++ {
if net.Channels[i].Id == channel {
return &net.Channels[i]
}
}
}
return nil
}
func loungeAuthenticate(conn *loungeConnection) {
var err error
if conn.Pass != "" {
err = conn.Client.Emit("auth:perform", loungeAuth{User: conn.User, Pass: conn.Pass})
} else {
err = conn.Client.Emit("auth:perform", loungeAuth{User: conn.User, Token: conn.Token})
}
if err != nil {
log.Fatal(err)
}
}
func loungeMessageFilter(message loungeMessage) bool {
if message.Type == messageMessage || message.Type == messageAction || message.Type == messageNotice || message.Type == messageError {
return true
}
if message.Type == messageTopic && message.From.Nick != "" {
return true
}
return false
}
func loungeMessageHandle(channel *loungeChannel, message loungeMessage) {
channel.Messages = append(channel.Messages, message)
if loungeMessageFilter(message) {
channel.Filtered = append(channel.Filtered, message)
}
if message.Type == messageTopic {
channel.Topic = message.Text
}
}
func loungeMessagesFilter(messages []loungeMessage) []loungeMessage {
filtered := []loungeMessage{}
for _, msg := range messages {
if loungeMessageFilter(msg) {
filtered = append(filtered, msg)
}
}
return filtered
}
func loungeMessagesUpdate(conn *loungeConnection) {
lastMessage := conn.Channel.Messages[len(conn.Channel.Messages) - 1]
err := conn.Client.Emit("more", loungeMoreRequest{conn.Channel.Id, lastMessage.Id, true})
if err != nil {
log.Fatal(err)
}
}
func loungeChannelOpen(conn *loungeConnection, channel *loungeChannel) {
conn.Channel = channel
err := conn.Client.Emit("open", channel.Id)
if err != nil {
log.Fatal(err)
}
if len(channel.Filtered) == 0 {
channel.Filtered = loungeMessagesFilter(channel.Messages)