From 2651178a161eb861961545f3a7930d1698e60224 Mon Sep 17 00:00:00 2001 From: Syahdan Date: Wed, 15 Oct 2025 00:19:24 +0700 Subject: [PATCH] initial commit --- go.mod | 27 ++++++++++++++ go.sum | 45 +++++++++++++++++++++++ main.go | 107 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ server.go | 98 +++++++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 277 insertions(+) create mode 100644 go.mod create mode 100644 go.sum create mode 100644 main.go create mode 100644 server.go diff --git a/go.mod b/go.mod new file mode 100644 index 0000000..78dd3f5 --- /dev/null +++ b/go.mod @@ -0,0 +1,27 @@ +module github.com/littlequartz/clink + +go 1.24.5 + +require ( + github.com/atotto/clipboard v0.1.4 // indirect + github.com/aymanbagabas/go-osc52/v2 v2.0.1 // indirect + github.com/charmbracelet/bubbles v0.21.0 // indirect + github.com/charmbracelet/bubbletea v1.3.10 // indirect + github.com/charmbracelet/colorprofile v0.2.3-0.20250311203215-f60798e515dc // indirect + github.com/charmbracelet/lipgloss v1.1.0 // indirect + github.com/charmbracelet/x/ansi v0.10.1 // indirect + github.com/charmbracelet/x/cellbuf v0.0.13-0.20250311204145-2c3ea96c31dd // indirect + github.com/charmbracelet/x/term v0.2.1 // indirect + github.com/erikgeiser/coninput v0.0.0-20211004153227-1c3628e74d0f // indirect + github.com/lucasb-eyer/go-colorful v1.2.0 // indirect + github.com/mattn/go-isatty v0.0.20 // indirect + github.com/mattn/go-localereader v0.0.1 // indirect + github.com/mattn/go-runewidth v0.0.16 // indirect + github.com/muesli/ansi v0.0.0-20230316100256-276c6243b2f6 // indirect + github.com/muesli/cancelreader v0.2.2 // indirect + github.com/muesli/termenv v0.16.0 // indirect + github.com/rivo/uniseg v0.4.7 // indirect + github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e // indirect + golang.org/x/sys v0.36.0 // indirect + golang.org/x/text v0.3.8 // indirect +) diff --git a/go.sum b/go.sum new file mode 100644 index 0000000..180680e --- /dev/null +++ b/go.sum @@ -0,0 +1,45 @@ +github.com/atotto/clipboard v0.1.4 h1:EH0zSVneZPSuFR11BlR9YppQTVDbh5+16AmcJi4g1z4= +github.com/atotto/clipboard v0.1.4/go.mod h1:ZY9tmq7sm5xIbd9bOK4onWV4S6X0u6GY7Vn0Yu86PYI= +github.com/aymanbagabas/go-osc52/v2 v2.0.1 h1:HwpRHbFMcZLEVr42D4p7XBqjyuxQH5SMiErDT4WkJ2k= +github.com/aymanbagabas/go-osc52/v2 v2.0.1/go.mod h1:uYgXzlJ7ZpABp8OJ+exZzJJhRNQ2ASbcXHWsFqH8hp8= +github.com/charmbracelet/bubbles v0.21.0 h1:9TdC97SdRVg/1aaXNVWfFH3nnLAwOXr8Fn6u6mfQdFs= +github.com/charmbracelet/bubbles v0.21.0/go.mod h1:HF+v6QUR4HkEpz62dx7ym2xc71/KBHg+zKwJtMw+qtg= +github.com/charmbracelet/bubbletea v1.3.10 h1:otUDHWMMzQSB0Pkc87rm691KZ3SWa4KUlvF9nRvCICw= +github.com/charmbracelet/bubbletea v1.3.10/go.mod h1:ORQfo0fk8U+po9VaNvnV95UPWA1BitP1E0N6xJPlHr4= +github.com/charmbracelet/colorprofile v0.2.3-0.20250311203215-f60798e515dc h1:4pZI35227imm7yK2bGPcfpFEmuY1gc2YSTShr4iJBfs= +github.com/charmbracelet/colorprofile v0.2.3-0.20250311203215-f60798e515dc/go.mod h1:X4/0JoqgTIPSFcRA/P6INZzIuyqdFY5rm8tb41s9okk= +github.com/charmbracelet/lipgloss v1.1.0 h1:vYXsiLHVkK7fp74RkV7b2kq9+zDLoEU4MZoFqR/noCY= +github.com/charmbracelet/lipgloss v1.1.0/go.mod h1:/6Q8FR2o+kj8rz4Dq0zQc3vYf7X+B0binUUBwA0aL30= +github.com/charmbracelet/x/ansi v0.10.1 h1:rL3Koar5XvX0pHGfovN03f5cxLbCF2YvLeyz7D2jVDQ= +github.com/charmbracelet/x/ansi v0.10.1/go.mod h1:3RQDQ6lDnROptfpWuUVIUG64bD2g2BgntdxH0Ya5TeE= +github.com/charmbracelet/x/cellbuf v0.0.13-0.20250311204145-2c3ea96c31dd h1:vy0GVL4jeHEwG5YOXDmi86oYw2yuYUGqz6a8sLwg0X8= +github.com/charmbracelet/x/cellbuf v0.0.13-0.20250311204145-2c3ea96c31dd/go.mod h1:xe0nKWGd3eJgtqZRaN9RjMtK7xUYchjzPr7q6kcvCCs= +github.com/charmbracelet/x/term v0.2.1 h1:AQeHeLZ1OqSXhrAWpYUtZyX1T3zVxfpZuEQMIQaGIAQ= +github.com/charmbracelet/x/term v0.2.1/go.mod h1:oQ4enTYFV7QN4m0i9mzHrViD7TQKvNEEkHUMCmsxdUg= +github.com/erikgeiser/coninput v0.0.0-20211004153227-1c3628e74d0f h1:Y/CXytFA4m6baUTXGLOoWe4PQhGxaX0KpnayAqC48p4= +github.com/erikgeiser/coninput v0.0.0-20211004153227-1c3628e74d0f/go.mod h1:vw97MGsxSvLiUE2X8qFplwetxpGLQrlU1Q9AUEIzCaM= +github.com/lucasb-eyer/go-colorful v1.2.0 h1:1nnpGOrhyZZuNyfu1QjKiUICQ74+3FNCN69Aj6K7nkY= +github.com/lucasb-eyer/go-colorful v1.2.0/go.mod h1:R4dSotOR9KMtayYi1e77YzuveK+i7ruzyGqttikkLy0= +github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY= +github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y= +github.com/mattn/go-localereader v0.0.1 h1:ygSAOl7ZXTx4RdPYinUpg6W99U8jWvWi9Ye2JC/oIi4= +github.com/mattn/go-localereader v0.0.1/go.mod h1:8fBrzywKY7BI3czFoHkuzRoWE9C+EiG4R1k4Cjx5p88= +github.com/mattn/go-runewidth v0.0.16 h1:E5ScNMtiwvlvB5paMFdw9p4kSQzbXFikJ5SQO6TULQc= +github.com/mattn/go-runewidth v0.0.16/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w= +github.com/muesli/ansi v0.0.0-20230316100256-276c6243b2f6 h1:ZK8zHtRHOkbHy6Mmr5D264iyp3TiX5OmNcI5cIARiQI= +github.com/muesli/ansi v0.0.0-20230316100256-276c6243b2f6/go.mod h1:CJlz5H+gyd6CUWT45Oy4q24RdLyn7Md9Vj2/ldJBSIo= +github.com/muesli/cancelreader v0.2.2 h1:3I4Kt4BQjOR54NavqnDogx/MIoWBFa0StPA8ELUXHmA= +github.com/muesli/cancelreader v0.2.2/go.mod h1:3XuTXfFS2VjM+HTLZY9Ak0l6eUKfijIfMUZ4EgX0QYo= +github.com/muesli/termenv v0.16.0 h1:S5AlUN9dENB57rsbnkPyfdGuWIlkmzJjbFf0Tf5FWUc= +github.com/muesli/termenv v0.16.0/go.mod h1:ZRfOIKPFDYQoDFF4Olj7/QJbW60Ol/kL1pU3VfY/Cnk= +github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc= +github.com/rivo/uniseg v0.4.7 h1:WUdvkW8uEhrYfLC4ZzdpI2ztxP1I582+49Oc5Mq64VQ= +github.com/rivo/uniseg v0.4.7/go.mod h1:FN3SvrM+Zdj16jyLfmOkMNblXMcoc8DfTHruCPUcx88= +github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e h1:JVG44RsyaB9T2KIHavMF/ppJZNG9ZpyihvCd0w101no= +github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e/go.mod h1:RbqR21r5mrJuqunuUZ/Dhy/avygyECGrLceyNeo4LiM= +golang.org/x/sys v0.0.0-20210809222454-d867a43fc93e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= +golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= +golang.org/x/sys v0.36.0 h1:KVRy2GtZBrk1cBYA7MKu5bEZFxQk4NIDV6RLVcC8o0k= +golang.org/x/sys v0.36.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks= +golang.org/x/text v0.3.8 h1:nAL+RVCQ9uMn3vJZbV+MRnydTJFPf8qqY42YiA6MrqY= +golang.org/x/text v0.3.8/go.mod h1:E6s5w1FMmriuDzIBO73fBruAKo1PCIq6d2Q6DHfQ8WQ= diff --git a/main.go b/main.go new file mode 100644 index 0000000..03d04eb --- /dev/null +++ b/main.go @@ -0,0 +1,107 @@ +package main + +import ( + "fmt" + "strings" + + "github.com/charmbracelet/bubbles/textarea" + "github.com/charmbracelet/bubbles/viewport" + tea "github.com/charmbracelet/bubbletea" + "github.com/charmbracelet/lipgloss" +) + +type netMsg string + +type model struct { + vp viewport.Model + input textarea.Model + messages []string +} + +func initialModel() model { + vp := viewport.New(80, 20) + vp.Style = lipgloss.NewStyle().Border(lipgloss.NormalBorder()).Padding(0, 1).BorderForeground(lipgloss.Color("#bada55")) + + ta := textarea.New() + ta.FocusedStyle.CursorLine = lipgloss.NewStyle() + ta.Placeholder = "Type message and press Enter…" + ta.Focus() + ta.Prompt = "┃ " + ta.CharLimit = 0 + ta.SetHeight(3) + ta.ShowLineNumbers = false + + return model{ + vp: vp, + input: ta, + messages: []string{}, + } +} + +func (m model) Init() tea.Cmd { + return textarea.Blink +} + +func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) { + var cmds []tea.Cmd + + switch msg := msg.(type) { + case tea.KeyMsg: + switch msg.Type { + case tea.KeyCtrlC, tea.KeyEsc: + return m, tea.Quit + case tea.KeyEnter: + text := m.input.Value() + if text != "" { + m.messages = append(m.messages, fmt.Sprintf("You: %s", text)) + m.messages = append(m.messages, fmt.Sprintf("Bot: %s", text)) + m.input.SetValue("") + m.refreshViewport() + } + return m, nil + } + case tea.WindowSizeMsg: + // Allocate space: viewport above, input below + m.vp.Width = msg.Width + m.vp.Height = msg.Height - 4 + m.input.SetWidth(msg.Width - 2) + m.refreshViewport() + } + + // Let textarea handle remaining keys + var cmd tea.Cmd + m.input, cmd = m.input.Update(msg) + cmds = append(cmds, cmd) + + return m, tea.Batch(cmds...) +} + +func (m *model) refreshViewport() { + contentWidth := m.vp.Width - m.vp.Style.GetHorizontalFrameSize() + + var b strings.Builder + for _, line := range m.messages { + wrapped := lipgloss.NewStyle().Width(contentWidth).Render(line) + b.WriteString(wrapped) + if !strings.HasSuffix(wrapped, "\n") { + b.WriteString("\n") + } + } + m.vp.SetContent(b.String()) + m.vp.GotoBottom() +} + +func (m model) View() string { + return lipgloss.JoinVertical( + lipgloss.Left, + m.vp.View(), + m.input.View(), + ) +} + +func main() { + p := tea.NewProgram(initialModel(), tea.WithAltScreen(), tea.WithMouseCellMotion()) + if _, err := p.Run(); err != nil { + fmt.Println("Error:", err) + } +} diff --git a/server.go b/server.go new file mode 100644 index 0000000..a76cfcc --- /dev/null +++ b/server.go @@ -0,0 +1,98 @@ +package main + +import ( + "bufio" + "fmt" + "log" + "net" + "strings" + "sync" +) + +type Hub struct { + mu sync.Mutex + conns map[net.Conn]struct{} + joinCh chan net.Conn + leaveCh chan net.Conn + msgCh chan string +} + +func NewHub() *Hub { + return &Hub{ + conns: make(map[net.Conn]struct{}), + joinCh: make(chan net.Conn), + leaveCh: make(chan net.Conn), + msgCh: make(chan string, 128), + } +} + +func (h *Hub) Run() { + for { + select { + case c := <-h.joinCh: + h.mu.Lock() + h.conns[c] = struct{}{} + h.mu.Unlock() + case c := <-h.leaveCh: + h.mu.Lock() + if _, ok := h.conns[c]; ok { + delete(h.conns, c) + _ = c.Close() + } + h.mu.Unlock() + case msg := <-h.msgCh: + h.mu.Lock() + for c := range h.conns { + // newline-delimited messages + fmt.Fprintln(c, msg) + } + h.mu.Unlock() + } + } +} + +func handleConn(h *Hub, c net.Conn) { + defer func() { h.leaveCh <- c }() + h.joinCh <- c + + name := c.RemoteAddr().String() + fmt.Fprintf(c, "Welcome %s\n", name) + h.msgCh <- fmt.Sprintf("[join] %s", name) + + scanner := bufio.NewScanner(c) + scanner.Buffer(make([]byte, 0, 1024), 64*1024) + for scanner.Scan() { + line := strings.TrimSpace(scanner.Text()) + if line == "" { + continue + } + if line == "/quit" { + return + } + h.msgCh <- fmt.Sprintf("%s: %s", name, line) + } + if err := scanner.Err(); err != nil { + log.Printf("read err from %s: %v", name, err) + } + h.msgCh <- fmt.Sprintf("[leave] %s", name) +} + +func startTCPServer(addr string) error { + ln, err := net.Listen("tcp", addr) + if err != nil { + return err + } + log.Printf("TCP chat server listening on %s", ln.Addr()) + + hub := NewHub() + go hub.Run() + + for { + c, err := ln.Accept() + if err != nil { + log.Printf("accept error: %v", err) + continue + } + go handleConn(hub, c) + } +}