From 8fff93464a12448c51a313c1e74eda92f14c3456 Mon Sep 17 00:00:00 2001
From: strNophix <nvdpoel01@gmail.com>
Date: Sun, 20 Mar 2022 19:50:55 +0100
Subject: [PATCH] Added basic music playback + tui
---
.gitignore | 2 +
README.md | 2 +-
go.mod | 32 ++++++++++
go.sum | 127 +++++++++++++++++++++++++++++++++++++++
main.go | 15 +++++
pkg/commands.go | 13 ++++
pkg/list_delegate.go | 32 ++++++++++
pkg/model.go | 77 ++++++++++++++++++++++++
pkg/status_bar.go | 54 +++++++++++++++++
pkg/track_fetcher.go | 72 ++++++++++++++++++++++
pkg/track_player.go | 32 ++++++++++
pkg/track_player_view.go | 53 ++++++++++++++++
pkg/utils.go | 17 ++++++
13 files changed, 527 insertions(+), 1 deletion(-)
create mode 100644 go.mod
create mode 100644 go.sum
create mode 100644 main.go
create mode 100644 pkg/commands.go
create mode 100644 pkg/list_delegate.go
create mode 100644 pkg/model.go
create mode 100644 pkg/status_bar.go
create mode 100644 pkg/track_fetcher.go
create mode 100644 pkg/track_player.go
create mode 100644 pkg/track_player_view.go
create mode 100644 pkg/utils.go
diff --git a/.gitignore b/.gitignore
index f4d432a..51b57ad 100644
--- a/.gitignore
+++ b/.gitignore
@@ -15,3 +15,5 @@
# Dependency directories (remove the comment below to include it)
# vendor/
+# Test data
+samples/
diff --git a/README.md b/README.md
index 117ff7f..c329fdd 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,3 @@
# gomus
-yay cmus
\ No newline at end of file
+cmus but in Go
\ No newline at end of file
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..8b0e765
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,32 @@
+module git.cesium.pw/niku/gomus
+
+go 1.18
+
+require (
+ github.com/atotto/clipboard v0.1.4 // indirect
+ github.com/bxcodec/faker/v3 v3.8.0 // indirect
+ github.com/charmbracelet/bubbles v0.10.3 // indirect
+ github.com/charmbracelet/bubbletea v0.20.0 // indirect
+ github.com/charmbracelet/lipgloss v0.5.0 // indirect
+ github.com/containerd/console v1.0.3 // indirect
+ github.com/faiface/beep v1.1.0 // indirect
+ github.com/hajimehoshi/oto v1.0.1 // indirect
+ github.com/icza/bitio v1.1.0 // indirect
+ github.com/lucasb-eyer/go-colorful v1.2.0 // indirect
+ github.com/mattn/go-isatty v0.0.14 // indirect
+ github.com/mattn/go-runewidth v0.0.13 // indirect
+ github.com/mewkiz/flac v1.0.7 // indirect
+ github.com/mewkiz/pkg v0.0.0-20211102230744-16a6ce8f1b77 // indirect
+ github.com/muesli/ansi v0.0.0-20211031195517-c9f0611b6c70 // indirect
+ github.com/muesli/reflow v0.3.0 // indirect
+ github.com/muesli/termenv v0.11.1-0.20220212125758-44cd13922739 // indirect
+ github.com/pkg/errors v0.9.1 // indirect
+ github.com/rivo/uniseg v0.2.0 // indirect
+ github.com/sahilm/fuzzy v0.1.0 // indirect
+ golang.org/x/exp v0.0.0-20190731235908-ec7cb31e5a56 // indirect
+ golang.org/x/exp/shiny v0.0.0-20220318154914-8dddf5d87bd8 // indirect
+ golang.org/x/image v0.0.0-20220302094943-723b81ca9867 // indirect
+ golang.org/x/mobile v0.0.0-20220307220422-55113b94f09c // indirect
+ golang.org/x/sys v0.0.0-20220318055525-2edf467146b5 // indirect
+ golang.org/x/term v0.0.0-20210927222741-03fcf44c2211 // indirect
+)
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..5076b1c
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,127 @@
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+golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210119212857-b64e53b001e4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210124154548-22da62e12c0c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20210809222454-d867a43fc93e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20220318055525-2edf467146b5 h1:saXMvIOKvRFwbOMicHXr0B1uwoxq9dGmLe5ExMES6c4=
+golang.org/x/sys v0.0.0-20220318055525-2edf467146b5/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
+golang.org/x/term v0.0.0-20210422114643-f5beecf764ed/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
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+golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
+golang.org/x/tools v0.0.0-20190312151545-0bb0c0a6e846/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
+golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/tools v0.1.8-0.20211022200916-316ba0b74098/go.mod h1:LGqMHiF4EqQNHR1JncWGqT5BVaXmza+X+BDGol+dOxo=
+golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
diff --git a/main.go b/main.go
new file mode 100644
index 0000000..e72f46f
--- /dev/null
+++ b/main.go
@@ -0,0 +1,15 @@
+package main
+
+import (
+ "log"
+
+ gomus "git.cesium.pw/niku/gomus/pkg"
+ tea "github.com/charmbracelet/bubbletea"
+)
+
+func main() {
+ p := tea.NewProgram(gomus.NewModel())
+ if err := p.Start(); err != nil {
+ log.Fatalf("Failed to start: %v", err)
+ }
+}
diff --git a/pkg/commands.go b/pkg/commands.go
new file mode 100644
index 0000000..3243090
--- /dev/null
+++ b/pkg/commands.go
@@ -0,0 +1,13 @@
+package gomus
+
+import tea "github.com/charmbracelet/bubbletea"
+
+type trackChangeMsg struct {
+ nextTrack track
+}
+
+func newTrackChangeCmd(nextTrack track) tea.Cmd {
+ return func() tea.Msg {
+ return trackChangeMsg{nextTrack}
+ }
+}
diff --git a/pkg/list_delegate.go b/pkg/list_delegate.go
new file mode 100644
index 0000000..d84c9d5
--- /dev/null
+++ b/pkg/list_delegate.go
@@ -0,0 +1,32 @@
+package gomus
+
+import (
+ "fmt"
+ "io"
+
+ "github.com/charmbracelet/bubbles/list"
+ tea "github.com/charmbracelet/bubbletea"
+ "github.com/charmbracelet/lipgloss"
+)
+
+type trackListDelegate struct{}
+
+func (d trackListDelegate) Height() int { return 1 }
+func (d trackListDelegate) Spacing() int { return 0 }
+func (d trackListDelegate) Update(msg tea.Msg, m *list.Model) tea.Cmd { return nil }
+func (d trackListDelegate) Render(w io.Writer, m list.Model, index int, listItem list.Item) {
+ t := listItem.(track)
+ f := t.fullName()
+
+ if m.Index() == index {
+ li := lipgloss.NewStyle().Bold(true).Render(f)
+ fmt.Fprintf(w, fmt.Sprintf("[>] %s", li))
+ return
+ }
+
+ fmt.Fprintf(w, f)
+}
+
+func newTrackListDelegate() trackListDelegate {
+ return trackListDelegate{}
+}
diff --git a/pkg/model.go b/pkg/model.go
new file mode 100644
index 0000000..0286adf
--- /dev/null
+++ b/pkg/model.go
@@ -0,0 +1,77 @@
+package gomus
+
+import (
+ "fmt"
+ "os"
+
+ tea "github.com/charmbracelet/bubbletea"
+)
+
+var (
+ termWidth = 0
+ termHeight = 0
+)
+
+type Model struct {
+ cursor int
+ currentlyPlaying int
+
+ trackPlayer
+ trackIndex
+
+ trackPlayerView trackPlayerView
+}
+
+func NewModel() Model {
+ if len(os.Args) < 2 {
+ fmt.Println("Expected a path to some music")
+ os.Exit(0)
+ }
+
+ ti := NewDirTrackIndex(os.Args[1])
+ tpv := newTrackPlayerView(ti.tracks)
+
+ return Model{
+ cursor: 0,
+ currentlyPlaying: 0,
+
+ trackIndex: ti,
+ trackPlayer: trackPlayer{},
+
+ trackPlayerView: tpv,
+ }
+}
+
+func (m Model) Init() tea.Cmd {
+ return tea.Batch(tea.EnterAltScreen, m.trackPlayerView.Init())
+}
+
+func (m Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
+ var cmds []tea.Cmd
+
+ switch msg := msg.(type) {
+ case tea.WindowSizeMsg:
+ termHeight = msg.Height
+ termWidth = msg.Width
+ case tea.KeyMsg:
+ switch msg.String() {
+ case "ctrl+c", "q":
+ m.trackPlayer.close()
+ return m, tea.Quit
+ case "enter":
+ t := m.trackPlayerView.trackList.SelectedItem().(track)
+ cmds = append(cmds, newTrackChangeCmd(t))
+ m.trackPlayer.play(t.getReader())
+ }
+ }
+
+ tpv, cmd := m.trackPlayerView.Update(msg)
+ m.trackPlayerView = tpv
+ cmds = append(cmds, cmd)
+
+ return m, tea.Batch(cmds...)
+}
+
+func (m Model) View() string {
+ return m.trackPlayerView.View()
+}
diff --git a/pkg/status_bar.go b/pkg/status_bar.go
new file mode 100644
index 0000000..4b7a337
--- /dev/null
+++ b/pkg/status_bar.go
@@ -0,0 +1,54 @@
+package gomus
+
+import (
+ tea "github.com/charmbracelet/bubbletea"
+ "github.com/charmbracelet/lipgloss"
+)
+
+var (
+ statusBarStyle = lipgloss.NewStyle().
+ Foreground(lipgloss.AdaptiveColor{Light: "#343433", Dark: "#C1C6B2"}).
+ Background(lipgloss.AdaptiveColor{Light: "#D9DCCF", Dark: "#353533"})
+
+ statusStyle = lipgloss.NewStyle().
+ Inherit(statusBarStyle).
+ Foreground(lipgloss.Color("#FFFDF5")).
+ Background(lipgloss.Color("#FF5F87")).
+ Padding(0, 1).
+ MarginRight(1)
+
+ statusText = lipgloss.NewStyle().Inherit(statusBarStyle)
+)
+
+type statusBar struct {
+ currentTrack track
+}
+
+func (s statusBar) Init() tea.Cmd {
+ return nil
+}
+
+func (s statusBar) View() string {
+ w := lipgloss.Width
+
+ statusKey := statusStyle.Render("NOW PLAYING")
+ statusVal := statusText.Copy().
+ Width(termWidth - w(statusKey)).
+ Render(s.currentTrack.fullName())
+
+ bar := lipgloss.JoinHorizontal(lipgloss.Top,
+ statusKey,
+ statusVal,
+ )
+
+ return statusBarStyle.Width(termWidth).Render(bar)
+}
+
+func (s statusBar) Update(msg tea.Msg) (statusBar, tea.Cmd) {
+ switch msg := msg.(type) {
+ case trackChangeMsg:
+ s.currentTrack = msg.nextTrack
+ }
+
+ return s, nil
+}
diff --git a/pkg/track_fetcher.go b/pkg/track_fetcher.go
new file mode 100644
index 0000000..8371e0c
--- /dev/null
+++ b/pkg/track_fetcher.go
@@ -0,0 +1,72 @@
+package gomus
+
+import (
+ "fmt"
+ "io"
+ "io/ioutil"
+ "os"
+ "path/filepath"
+ "strings"
+
+ "github.com/mewkiz/flac"
+ "github.com/mewkiz/flac/meta"
+)
+
+type track struct {
+ name string
+ artist string
+ trackPath string
+}
+
+func (t track) FilterValue() string { return "" }
+
+func (t track) fullName() string {
+ return fmt.Sprintf("%s - %s", t.artist, t.name)
+}
+
+func (t track) getReader() io.Reader {
+ f, err := os.Open(t.trackPath)
+ check(err)
+
+ return f
+}
+
+func trackFromFlac(path string) track {
+ s, err := flac.ParseFile(path)
+ check(err)
+
+ t := track{trackPath: path}
+ for _, block := range s.Blocks {
+ if block.Header.Type == meta.TypeVorbisComment {
+ c := block.Body.(*meta.VorbisComment)
+ for _, tag := range c.Tags {
+ if tag[0] == "ARTIST" {
+ t.artist = tag[1]
+ } else if tag[0] == "TITLE" {
+ t.name = tag[1]
+ }
+ }
+ }
+ }
+
+ return t
+}
+
+type trackIndex struct {
+ tracks []track
+}
+
+func NewDirTrackIndex(path string) trackIndex {
+ files, err := ioutil.ReadDir(path)
+ check(err)
+
+ tracks := []track{}
+ for _, file := range files {
+ if !file.IsDir() && strings.HasSuffix(file.Name(), ".flac") {
+ p := filepath.Join(path, file.Name())
+ tracks = append(tracks, trackFromFlac(p))
+ }
+ }
+
+ return trackIndex{tracks: tracks}
+}
diff --git a/pkg/track_player.go b/pkg/track_player.go
new file mode 100644
index 0000000..448497e
--- /dev/null
+++ b/pkg/track_player.go
@@ -0,0 +1,32 @@
+package gomus
+
+import (
+ "io"
+ "time"
+
+ "github.com/faiface/beep"
+ "github.com/faiface/beep/flac"
+ "github.com/faiface/beep/speaker"
+)
+
+type trackPlayer struct {
+ currentStream beep.StreamSeekCloser
+}
+
+func (t trackPlayer) play(reader io.Reader) {
+ if t.currentStream != nil {
+ t.currentStream.Close()
+ }
+ streamer, format, err := flac.Decode(reader)
+ check(err)
+
+ err = speaker.Init(format.SampleRate, format.SampleRate.N(time.Second/10))
+ check(err)
+
+ speaker.Play(streamer)
+ t.currentStream = streamer
+}
+
+func (t trackPlayer) close() {
+ t.currentStream.Close()
+}
diff --git a/pkg/track_player_view.go b/pkg/track_player_view.go
new file mode 100644
index 0000000..ebf72d1
--- /dev/null
+++ b/pkg/track_player_view.go
@@ -0,0 +1,53 @@
+package gomus
+
+import (
+ "github.com/charmbracelet/bubbles/list"
+ tea "github.com/charmbracelet/bubbletea"
+ "github.com/charmbracelet/lipgloss"
+)
+
+type trackPlayerView struct {
+ trackList list.Model
+ statusBar
+}
+
+func newTrackPlayerView(tracks []track) trackPlayerView {
+ c := mapList(tracks, func(t track) list.Item {
+ return t
+ })
+ l := list.New(c, newTrackListDelegate(), 0, 0)
+ l.SetShowTitle(false)
+ l.SetShowStatusBar(false)
+ l.SetShowHelp(false)
+ l.SetFilteringEnabled(false)
+
+ return trackPlayerView{trackList: l}
+}
+
+func (v trackPlayerView) Init() tea.Cmd {
+ return nil
+}
+
+func (v trackPlayerView) View() string {
+ return lipgloss.JoinVertical(lipgloss.Left, v.trackList.View(), v.statusBar.View())
+}
+
+func (v trackPlayerView) Update(msg tea.Msg) (trackPlayerView, tea.Cmd) {
+ var cmds []tea.Cmd
+
+ switch msg := msg.(type) {
+ case tea.WindowSizeMsg:
+ v.trackList.SetHeight(msg.Height - 2)
+ v.trackList.SetWidth(msg.Width)
+ }
+
+ tl, cmd := v.trackList.Update(msg)
+ v.trackList = tl
+ cmds = append(cmds, cmd)
+
+ sb, cmd := v.statusBar.Update(msg)
+ v.statusBar = sb
+ cmds = append(cmds, cmd)
+
+ return v, tea.Batch(cmds...)
+}
diff --git a/pkg/utils.go b/pkg/utils.go
new file mode 100644
index 0000000..9efda8a
--- /dev/null
+++ b/pkg/utils.go
@@ -0,0 +1,17 @@
+package gomus
+
+import "log"
+
+func mapList[T any, R any](l []T, f func(T) R) []R {
+ var c []R = []R{}
+ for _, item := range l {
+ c = append(c, f(item))
+ }
+ return c
+}
+
+func check(err error) {
+ if err != nil {
+ log.Fatal(err)
+ }
+}