Added basic music playback + tui

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()
+}