Files
PrintControl/go/internal/tui/model.go

597 lines
14 KiB
Go

package tui
import (
"fmt"
"strconv"
"strings"
"time"
tea "github.com/charmbracelet/bubbletea"
"github.com/charmbracelet/lipgloss"
"github.com/lwoodard/printcontrol/internal/printer"
)
type Config struct {
Port string
Baud int
AutoConnect bool
}
type focusArea int
const (
focusNone focusArea = iota
focusHotendInput
focusBedInput
focusGcodeInput
focusSDPicker
)
type Model struct {
cfg Config
printer *printer.Printer
state printer.State
width, height int
hotendInput string
bedInput string
gcodeInput string
focus focusArea
// SD picker state. Populated when the user opens it with [s];
// refreshed whenever the printer reports a fresh listing.
sdPickerFiles []printer.SDFile
sdPickerIdx int
sdPickerWait bool // waiting for M20 reply
log []string
logMax int
flashUntil time.Time
flashMsg string
}
func New(cfg Config) *Model {
return &Model{
cfg: cfg,
printer: printer.New(),
state: printer.NewState(),
logMax: 200,
}
}
// -- bubbletea Model interface ---------------------------------------------
func (m *Model) Init() tea.Cmd {
cmds := []tea.Cmd{tickCmd(), waitEvent(m.printer)}
if m.cfg.AutoConnect {
cmds = append(cmds, m.connectCmd())
}
return tea.Batch(cmds...)
}
type tickMsg time.Time
type eventMsg printer.Event
type connectResultMsg struct{ err error }
func tickCmd() tea.Cmd {
return tea.Tick(time.Second, func(t time.Time) tea.Msg { return tickMsg(t) })
}
func waitEvent(p *printer.Printer) tea.Cmd {
return func() tea.Msg {
evt, ok := <-p.Events()
if !ok {
return nil
}
return eventMsg(evt)
}
}
func (m *Model) connectCmd() tea.Cmd {
return func() tea.Msg {
err := m.printer.Connect(m.cfg.Port, m.cfg.Baud)
return connectResultMsg{err: err}
}
}
func (m *Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
switch msg := msg.(type) {
case tea.WindowSizeMsg:
m.width, m.height = msg.Width, msg.Height
return m, nil
case tickMsg:
return m, tickCmd()
case eventMsg:
evt := printer.Event(msg)
if evt.State.Port != "" || evt.State.Connected || evt.State.PrintState != 0 || len(evt.State.Temps) > 0 {
m.state = evt.State
}
if evt.RecvLine != "" {
m.appendLog("< " + evt.RecvLine)
}
if evt.SentLine != "" {
m.appendLog("> " + evt.SentLine)
}
// If we were waiting on an M20 listing and one just completed,
// populate the picker.
if m.sdPickerWait && !evt.State.SDListing && len(evt.State.SDFiles) > 0 {
m.sdPickerFiles = append(m.sdPickerFiles[:0], evt.State.SDFiles...)
m.sdPickerIdx = 0
m.sdPickerWait = false
m.focus = focusSDPicker
}
return m, waitEvent(m.printer)
case connectResultMsg:
if msg.err != nil {
m.flash("connect failed: " + msg.err.Error())
} else {
snap := m.printer.Snapshot()
m.state = snap
m.flash(fmt.Sprintf("connected: %s @ %d", snap.Port, snap.Baud))
}
return m, nil
case tea.KeyMsg:
return m.handleKey(msg)
}
return m, nil
}
func (m *Model) handleKey(k tea.KeyMsg) (tea.Model, tea.Cmd) {
// SD picker swallows all key input while open: arrows to navigate,
// Enter to start the highlighted print, Esc to dismiss.
if m.focus == focusSDPicker {
switch k.Type {
case tea.KeyEsc:
m.focus = focusNone
return m, nil
case tea.KeyUp:
if m.sdPickerIdx > 0 {
m.sdPickerIdx--
}
return m, nil
case tea.KeyDown:
if m.sdPickerIdx < len(m.sdPickerFiles)-1 {
m.sdPickerIdx++
}
return m, nil
case tea.KeyEnter:
if m.sdPickerIdx < len(m.sdPickerFiles) {
f := m.sdPickerFiles[m.sdPickerIdx]
m.printer.StartSDPrint(f.Name)
m.flash("start: " + f.Name)
}
m.focus = focusNone
return m, nil
}
// Letters j/k as a vim-style fallback for users without arrow keys.
switch k.String() {
case "k":
if m.sdPickerIdx > 0 {
m.sdPickerIdx--
}
case "j":
if m.sdPickerIdx < len(m.sdPickerFiles)-1 {
m.sdPickerIdx++
}
}
return m, nil
}
// When a text input is focused, capture printable text + enter/esc
if m.focus != focusNone {
switch k.Type {
case tea.KeyEsc:
m.focus = focusNone
return m, nil
case tea.KeyEnter:
return m, m.commitInput()
case tea.KeyBackspace, tea.KeyDelete:
m.editInput(func(s string) string {
if len(s) == 0 {
return s
}
return s[:len(s)-1]
})
return m, nil
case tea.KeyRunes, tea.KeySpace:
m.editInput(func(s string) string { return s + k.String() })
return m, nil
}
return m, nil
}
switch k.String() {
case "q", "ctrl+c":
m.printer.Disconnect()
return m, tea.Quit
case "c":
m.flash("connecting…")
return m, m.connectCmd()
case "d":
m.printer.Disconnect()
return m, nil
case "p":
m.printer.Pause()
case "r":
m.printer.Resume()
case "x":
m.printer.Cancel()
case "h":
m.focus = focusHotendInput
case "b":
m.focus = focusBedInput
case "g":
m.focus = focusGcodeInput
case "s":
m.printer.ListSDFiles()
m.sdPickerWait = true
m.flash("listing SD card…")
case "f":
m.printer.SetFan(m.state.FanPct + 10)
case "F":
m.printer.SetFan(m.state.FanPct - 10)
case "+", "=":
m.printer.SetFeedrate(m.state.FeedratePct + 10)
case "-", "_":
m.printer.SetFeedrate(m.state.FeedratePct - 10)
case "0":
m.printer.SetFeedrate(100)
case "[":
m.printer.SetFlow(m.state.FlowPct - 5)
case "]":
m.printer.SetFlow(m.state.FlowPct + 5)
case "{":
m.printer.BabystepZ(-0.05)
case "}":
m.printer.BabystepZ(0.05)
case "Z":
m.printer.ResetBabystep()
}
return m, nil
}
func (m *Model) editInput(fn func(string) string) {
switch m.focus {
case focusHotendInput:
m.hotendInput = fn(m.hotendInput)
case focusBedInput:
m.bedInput = fn(m.bedInput)
case focusGcodeInput:
m.gcodeInput = fn(m.gcodeInput)
}
}
func (m *Model) commitInput() tea.Cmd {
switch m.focus {
case focusHotendInput:
if v, err := strconv.Atoi(strings.TrimSpace(m.hotendInput)); err == nil {
m.printer.SetHotend(v, 0)
m.flash(fmt.Sprintf("hotend → %d °C", v))
}
m.hotendInput = ""
case focusBedInput:
if v, err := strconv.Atoi(strings.TrimSpace(m.bedInput)); err == nil {
m.printer.SetBed(v)
m.flash(fmt.Sprintf("bed → %d °C", v))
}
m.bedInput = ""
case focusGcodeInput:
if line := strings.TrimSpace(m.gcodeInput); line != "" {
m.printer.Send(line)
}
m.gcodeInput = ""
}
m.focus = focusNone
return nil
}
func (m *Model) flash(msg string) {
m.flashMsg = msg
m.flashUntil = time.Now().Add(3 * time.Second)
m.appendLog("· " + msg)
}
func (m *Model) appendLog(line string) {
m.log = append(m.log, line)
if len(m.log) > m.logMax {
m.log = m.log[len(m.log)-m.logMax:]
}
}
// -- view ------------------------------------------------------------------
func (m *Model) View() string {
if m.width == 0 {
return "starting…"
}
// Two columns (status+controls vs temps) above a wide log
leftW := (m.width - 4) / 2
rightW := m.width - 4 - leftW
if leftW < 30 {
leftW = m.width - 4
rightW = 0
}
status := panelStyle.Width(leftW).Render(m.renderStatus())
temps := panelStyle.Width(rightW).Render(m.renderTemps())
controls := panelStyle.Width(m.width - 4).Render(m.renderControls())
top := lipgloss.JoinHorizontal(lipgloss.Top, status, temps)
header := titleStyle.Render(" printcontrol ") + dimStyle.Render(" · 3D printer TUI")
footer := m.renderFooter()
// Reserve room for header + top + controls + footer (plus panel chrome).
// Whatever rows are left go to the log; if the terminal is short we keep
// the log to two lines so the footer never falls off.
reserved := lipgloss.Height(header) +
lipgloss.Height(top) +
lipgloss.Height(controls) +
lipgloss.Height(footer)
logRows := m.height - reserved - 3 // 3 = log panel border + title
if logRows < 2 {
logRows = 2
}
if logRows > 12 {
logRows = 12
}
logBox := panelStyle.Width(m.width - 4).Render(m.renderLog(logRows))
// SD picker takes over the log slot when open — keeps the rest of the
// status panels visible while the user is choosing.
if m.focus == focusSDPicker {
logBox = panelStyle.Width(m.width - 4).Render(m.renderSDPicker(logRows))
}
return lipgloss.JoinVertical(lipgloss.Left, header, top, controls, logBox, footer)
}
func (m *Model) renderStatus() string {
var b strings.Builder
b.WriteString(titleStyle.Render("● Status") + "\n")
conn := "disconnected"
if m.state.Connected {
conn = fmt.Sprintf("%s @ %d", m.state.Port, m.state.Baud)
if m.state.Firmware != "" {
conn += dimStyle.Render(" · " + m.state.Firmware)
}
}
b.WriteString(kv("Connection:", conn) + " " + statePill(m.state.PrintState) + "\n")
file := m.state.SDFilename
if file == "" {
file = "—"
}
b.WriteString(kv("File:", file) + "\n")
prog := int(m.state.Progress() * 100)
bar := progressBar(prog, 30)
b.WriteString(kv("Progress:", fmt.Sprintf("%s %3d%%", bar, prog)) + "\n")
etaStr := "—"
if eta, ok := m.state.ETA(); ok {
etaStr = formatDuration(eta)
}
b.WriteString(kv("ETA:", etaStr))
return b.String()
}
func (m *Model) renderTemps() string {
var b strings.Builder
b.WriteString(titleStyle.Render("● Temperatures") + "\n")
hot := m.state.Temps["T"]
if (hot == printer.TempPair{}) {
hot = m.state.Temps["T0"]
}
b.WriteString(kv("Hotend:", tempStr(hot)) + "\n")
bed := m.state.Temps["B"]
b.WriteString(kv("Bed:", tempStr(bed)) + "\n")
chamber, hasChamber := m.state.Temps["C"]
if hasChamber {
b.WriteString(kv("Chamber:", tempStr(chamber)) + "\n")
}
b.WriteString("\n")
// Input lines
hotPrompt := " set hotend: "
if m.focus == focusHotendInput {
hotPrompt += valueStyle.Render(m.hotendInput + "▏")
} else {
hotPrompt += dimStyle.Render("[h]")
}
b.WriteString(hotPrompt + "\n")
bedPrompt := " set bed: "
if m.focus == focusBedInput {
bedPrompt += valueStyle.Render(m.bedInput + "▏")
} else {
bedPrompt += dimStyle.Render("[b]")
}
b.WriteString(bedPrompt)
return b.String()
}
func (m *Model) renderControls() string {
var b strings.Builder
b.WriteString(titleStyle.Render("● Controls") + "\n")
b.WriteString(fmt.Sprintf(" Feedrate: %s %s Flow: %s %s Fan: %s %s Babystep Z: %s %s\n",
valueStyle.Render(fmt.Sprintf("%3d%%", m.state.FeedratePct)),
dimStyle.Render("[-/+] [0]"),
valueStyle.Render(fmt.Sprintf("%3d%%", m.state.FlowPct)),
dimStyle.Render("[ [ / ] ]"),
valueStyle.Render(fmt.Sprintf("%3d%%", m.state.FanPct)),
dimStyle.Render("[f/F]"),
valueStyle.Render(fmt.Sprintf("%+.3f", m.state.BabystepZ)),
dimStyle.Render("[{ / }] [Z]"),
))
if m.focus == focusGcodeInput {
b.WriteString(" > " + valueStyle.Render(m.gcodeInput + "▏"))
} else {
b.WriteString(dimStyle.Render(" press [g] to send raw G-code"))
}
return b.String()
}
func (m *Model) renderSDPicker(rows int) string {
title := titleStyle.Render("● SD card") + dimStyle.Render(" ↑/↓ select ⏎ print esc cancel")
if len(m.sdPickerFiles) == 0 {
return title + "\n" + dimStyle.Render(" (no files reported)")
}
if rows < 1 {
rows = 1
}
// Scroll window around the selected index.
from := 0
to := len(m.sdPickerFiles)
if to > rows {
from = m.sdPickerIdx - rows/2
if from < 0 {
from = 0
}
if from+rows > len(m.sdPickerFiles) {
from = len(m.sdPickerFiles) - rows
}
to = from + rows
}
var b strings.Builder
b.WriteString(title)
for i := from; i < to; i++ {
f := m.sdPickerFiles[i]
label := f.Name
if f.LongName != "" {
label = f.LongName + dimStyle.Render(" ("+f.Name+")")
}
size := ""
if f.Size > 0 {
size = dimStyle.Render(" " + humanSize(f.Size))
}
row := " " + label + size
if i == m.sdPickerIdx {
row = valueStyle.Render("▸ ") + valueStyle.Render(label) + size
}
b.WriteString("\n" + row)
}
return b.String()
}
func humanSize(n int64) string {
const k = 1024
switch {
case n < k:
return fmt.Sprintf("%dB", n)
case n < k*k:
return fmt.Sprintf("%.1fK", float64(n)/k)
case n < k*k*k:
return fmt.Sprintf("%.1fM", float64(n)/(k*k))
default:
return fmt.Sprintf("%.1fG", float64(n)/(k*k*k))
}
}
func (m *Model) renderLog(rows int) string {
title := titleStyle.Render("● Log")
if len(m.log) == 0 {
return title + "\n" + dimStyle.Render(" (no messages yet)")
}
if rows < 1 {
rows = 1
}
from := 0
if len(m.log) > rows {
from = len(m.log) - rows
}
body := strings.Join(m.log[from:], "\n")
return title + "\n" + dimStyle.Render(body)
}
func (m *Model) renderFooter() string {
keys := []string{
key("c") + " connect",
key("d") + " disconnect",
key("s") + " sd start",
key("p") + " pause",
key("r") + " resume",
key("x") + " cancel",
key("h") + " hotend",
key("b") + " bed",
key("g") + " gcode",
key("q") + " quit",
}
hints := keyHintStyle.Render(strings.Join(keys, " "))
if time.Now().Before(m.flashUntil) && m.flashMsg != "" {
return hints + "\n" + valueStyle.Render(m.flashMsg)
}
if m.state.ErrorMsg != "" {
return hints + "\n" + pillError.Render("⚠ "+m.state.ErrorMsg)
}
return hints
}
// -- view helpers ----------------------------------------------------------
func kv(label, value string) string {
return labelStyle.Render(fmt.Sprintf("%-12s", label)) + " " + valueStyle.Render(value)
}
func key(k string) string { return keyStyle.Render("[" + k + "]") }
func tempStr(p printer.TempPair) string {
if p.Current == 0 && p.Target == 0 {
return "—"
}
return fmt.Sprintf("%5.1f / %5.1f °C", p.Current, p.Target)
}
func statePill(s printer.PrintState) string {
switch s {
case printer.StateSDPrinting, printer.StateHostPrinting:
return pillPrint.Render(s.String())
case printer.StatePaused:
return pillPause.Render(s.String())
case printer.StateError:
return pillError.Render(s.String())
default:
return pillIdle.Render(s.String())
}
}
func progressBar(pct, width int) string {
if pct < 0 {
pct = 0
}
if pct > 100 {
pct = 100
}
filled := pct * width / 100
return "[" + strings.Repeat("█", filled) + strings.Repeat("·", width-filled) + "]"
}
func formatDuration(d time.Duration) string {
d = d.Round(time.Second)
h := d / time.Hour
d -= h * time.Hour
mm := d / time.Minute
d -= mm * time.Minute
s := d / time.Second
if h > 0 {
return fmt.Sprintf("%dh %02dm", h, mm)
}
if mm > 0 {
return fmt.Sprintf("%dm %02ds", mm, s)
}
return fmt.Sprintf("%ds", s)
}