Add basic terminal user interface

tui/mainscreen.go

@@ -0,0 +1,78 @@
+package tui
+
+import (
+	"github.com/gdamore/tcell/v2"
+	"github.com/rivo/tview"
+	"suruatoel.xyz/timefiles/lib"
+)
+
+// MainScreen represents the main screen of the user interface.
+type MainScreen struct {
+	app          *TUI
+	main         *tview.Flex
+	tabs         *Tabs
+	timesPage    *DayUI
+	statusBar    *StatusBar
+	help         *tview.TextView
+}
+
+// NewMainScreen creates a new main screen of the user interface.
+func NewMainScreen(app *TUI) (*MainScreen, error) {
+	ui := MainScreen{
+		app: app,
+	}
+
+	ui.tabs = NewTabs(true)
+
+	ui.timesPage = NewDayUI(app)
+	ui.tabs.AddTab("times", "Times", ui.timesPage, true)
+
+	ui.statusBar = NewStatusBar()
+
+	ui.main = tview.NewFlex().
+		SetDirection(tview.FlexRow).
+		AddItem(ui.tabs, 0, 1, false).
+		AddItem(ui.statusBar, 1, 1, false)
+
+	ui.tabs.Select("times")
+	app.uiApp.SetRoot(ui.main, true).EnableMouse(true).SetFocus(ui.timesPage)
+	ui.addShortcuts()
+
+	return &ui, nil
+}
+
+// SetStatus displays a message in the status bar.
+func (ui *MainScreen) SetStatus(message string) {
+	ui.statusBar.SetStatus(message)
+}
+
+// SetTimer displays the current timer on the times page.
+func (ui *MainScreen) SetTimer(timer *lib.Time) {
+	ui.timesPage.SetTimer(timer)
+}
+
+// SetSummary displays the time summary on the times page.
+func (ui *MainScreen) SetSummary(summary []*lib.Time) {
+	ui.timesPage.SetSummary(summary)
+}
+
+// SetTotals displays the time totals on the times page.
+func (ui *MainScreen) SetTotals(totalTime lib.TotalTime) {
+	ui.timesPage.SetTotals(totalTime)
+}
+
+// addShortcuts registers keyboard shortcuts for the main screen.
+func (ui *MainScreen) addShortcuts() {
+	ui.main.SetInputCapture(func(event *tcell.EventKey) *tcell.EventKey {
+		switch event.Key() {
+		case tcell.KeyCtrlN:
+			ui.app.Focus(ui.tabs.Next())
+			return nil
+		case tcell.KeyCtrlP:
+			ui.app.Focus(ui.tabs.Prev())
+			return nil
+		}
+
+		return event
+	})
+}