Add basic terminal user interface

tui/tui.go

@@ -0,0 +1,114 @@
+// Package tui implements a terminal user interface.
+package tui
+
+import (
+	"fmt"
+
+	"github.com/rivo/tview"
+	"suruatoel.xyz/timefiles/application"
+	"suruatoel.xyz/timefiles/lib"
+)
+
+// TUI represents the terminal user interface.
+//
+// timeApp is the application to manage the time files.
+//
+// uiApp is the tview application.
+//
+// uiScreen is the main screen of the terminal application.
+type TUI struct {
+	timeApp  *application.Application
+	uiApp    *tview.Application
+	uiScreen *MainScreen
+}
+
+// NewTUI creates a new terminal user interface.
+func NewTUI() (*TUI, error) {
+	tui := TUI{}
+
+	tui.timeApp = application.NewApplication(&tui)
+	tui.uiApp = tview.NewApplication()
+	ui, uiErr := NewMainScreen(&tui)
+	if uiErr != nil {
+		return nil, uiErr
+	}
+	tui.uiScreen = ui
+
+	return &tui, nil
+}
+
+// Run loads the initial application data and runs the terminal user interface. It will wait for the UI to finish and
+// for all asynchronous jobs to be completed before returning.
+func (ui *TUI) Run() error {
+	ui.timeApp.Load()
+	ui.timeApp.GetTimer()
+	ui.timeApp.GetTimeSummary()
+	ui.timeApp.GetTimeTotals()
+
+	err := ui.uiApp.Run()
+	ui.timeApp.Wait()
+
+	return err
+}
+
+// Focus delegates the focus request of the UI to TUI.uiApp.
+func (ui *TUI) Focus(p tview.Primitive) {
+	ui.uiApp.SetFocus(p)
+}
+
+// SetTimerStart sets the status for updating the timer.
+func (ui *TUI) SetTimerStart() {
+	ui.uiApp.QueueUpdateDraw(func() {
+		ui.uiScreen.SetStatus("Updating timer")
+	})
+}
+
+// SetTimer updates the UI with the timer.
+func (ui *TUI) SetTimer(timer *lib.Time, err error) {
+	ui.uiApp.QueueUpdateDraw(func() {
+		if err == nil {
+			ui.uiScreen.SetStatus("Timer updated")
+		} else {
+			ui.uiScreen.SetStatus(fmt.Sprintf("Failed to update timer: %s", err))
+		}
+		ui.uiScreen.SetTimer(timer)
+	})
+}
+
+// SetSummaryStart sets the status for gathering the time summary.
+func (ui *TUI) SetSummaryStart() {
+	ui.uiApp.QueueUpdateDraw(func() {
+		ui.uiScreen.SetStatus("Getting summary")
+	})
+}
+
+// SetSummary updates the UI with the time summary.
+func (ui *TUI) SetSummary(summary []*lib.Time, err error) {
+	ui.uiApp.QueueUpdateDraw(func() {
+		if err == nil {
+			ui.uiScreen.SetStatus("Summary calculated")
+		} else {
+			ui.uiScreen.SetStatus(fmt.Sprintf("Failed get summary: %s", err))
+		}
+		ui.uiScreen.SetSummary(summary)
+	})
+}
+
+// SetTotalsStart sets the status for calculating the time totals.
+func (ui *TUI) SetTotalsStart() {
+	ui.uiApp.QueueUpdateDraw(func() {
+		ui.uiScreen.SetStatus("Calculated totals")
+	})
+}
+
+// SetTotals updates the UI with the time totals.
+func (ui *TUI) SetTotals(totalTime lib.TotalTime, err error) {
+	ui.uiApp.QueueUpdateDraw(func() {
+		if err == nil {
+			ui.uiScreen.SetStatus("Totals calculated")
+		} else {
+			ui.uiScreen.SetStatus(fmt.Sprintf("Failed get totals: %s", err))
+		}
+		ui.uiScreen.SetTotals(totalTime)
+	})
+}