fixup! wip: refactor: API

cmd/client/main.go

@@ -0,0 +1,78 @@
+package main
+
+import (
+	"context"
+	"fmt"
+	"log/slog"
+	"os"
+	"runtime/debug"
+
+	"git.netflux.io/rob/octoplex/internal/domain"
+	"git.netflux.io/rob/octoplex/internal/event"
+	"git.netflux.io/rob/octoplex/internal/terminal"
+	"golang.design/x/clipboard"
+)
+
+var (
+	// version is the version of the application.
+	version string
+	// commit is the commit hash of the application.
+	commit string
+	// date is the date of the build.
+	date string
+)
+
+func main() {
+	if err := run(); err != nil {
+		os.Stderr.WriteString("Error: " + err.Error() + "\n")
+	}
+}
+
+func run() error {
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
+	// TODO: logger from config
+	fptr, err := os.OpenFile("octoplex.log", os.O_RDWR|os.O_CREATE|os.O_APPEND, 0666)
+	if err != nil {
+		return fmt.Errorf("open log file: %w", err)
+	}
+	logger := slog.New(slog.NewTextHandler(fptr, nil))
+
+	bus := event.NewBus(logger)
+
+	var clipboardAvailable bool
+	if err = clipboard.Init(); err != nil {
+		logger.Warn("Clipboard not available", "err", err)
+	} else {
+		clipboardAvailable = true
+	}
+
+	buildInfo, ok := debug.ReadBuildInfo()
+	if !ok {
+		return fmt.Errorf("read build info: %w", err)
+	}
+
+	ui, err := terminal.StartUI(ctx, terminal.StartParams{
+		EventBus: bus,
+		Dispatcher: func(cmd event.Command) {
+			// TODO: this must call the gRPC client
+			logger.Info("Command dispatched", "cmd", cmd)
+		},
+		ClipboardAvailable: clipboardAvailable,
+		ConfigFilePath:     "TODO",
+		BuildInfo: domain.BuildInfo{
+			GoVersion: buildInfo.GoVersion,
+			Version:   version,
+			Commit:    commit,
+			Date:      date,
+		},
+		Logger: logger.With("component", "ui"),
+	})
+	if err != nil {
+		return fmt.Errorf("start terminal user interface: %w", err)
+	}
+	defer ui.Close()
+
+	return nil
+}

cmd/server/main.go

@@ -6,7 +6,6 @@ import (
 	"errors"
 	"flag"
 	"fmt"
-	"io"
 	"log/slog"
 	"os"
 	"os/exec"
@@ -18,7 +17,6 @@ import (
 	"git.netflux.io/rob/octoplex/internal/config"
 	"git.netflux.io/rob/octoplex/internal/domain"
 	dockerclient "github.com/docker/docker/client"
-	"golang.design/x/clipboard"
 )
 
 var (
@@ -85,13 +83,11 @@ func run() error {
 		return fmt.Errorf("read or create config: %w", err)
 	}
 
-	headless := os.Getenv("OCTO_HEADLESS") != ""
-	logger, err := buildLogger(cfg.LogFile, headless)
+	logger, err := buildLogger(cfg.LogFile)
 	if err != nil {
 		return fmt.Errorf("build logger: %w", err)
 	}
 
-	if headless {
 	// When running in headless mode tview doesn't handle SIGINT for us.
 	ch := make(chan os.Signal, 1)
 	signal.Notify(ch, syscall.SIGINT, syscall.SIGTERM)
@@ -102,14 +98,6 @@ func run() error {
 		signal.Stop(ch)
 		cancel(errShutdown)
 	}()
-	}
-
-	var clipboardAvailable bool
-	if err = clipboard.Init(); err != nil {
-		logger.Warn("Clipboard not available", "err", err)
-	} else {
-		clipboardAvailable = true
-	}
 
 	dockerClient, err := dockerclient.NewClientWithOpts(
 		dockerclient.FromEnv,
@@ -127,8 +115,6 @@ func run() error {
 	app := app.New(app.Params{
 		ConfigService:  configService,
 		DockerClient:   dockerClient,
-		Headless:           headless,
-		ClipboardAvailable: clipboardAvailable,
 		ConfigFilePath: configService.Path(),
 		BuildInfo: domain.BuildInfo{
 			GoVersion: buildInfo.GoVersion,
@@ -189,32 +175,13 @@ func printUsage() {
 	os.Stderr.WriteString("\n")
 	os.Stderr.WriteString("Additionally, Octoplex can be configured with the following environment variables:\n\n")
 	os.Stderr.WriteString("  OCTO_DEBUG    Enables debug logging if set\n")
-	os.Stderr.WriteString("  OCTO_HEADLESS Enables headless mode if set (experimental)\n\n")
 }
 
 // buildLogger builds the logger, which may be a no-op logger.
-func buildLogger(cfg config.LogFile, headless bool) (*slog.Logger, error) {
-	build := func(w io.Writer) *slog.Logger {
+func buildLogger(cfg config.LogFile) (*slog.Logger, error) {
 	var handlerOpts slog.HandlerOptions
 	if os.Getenv("OCTO_DEBUG") != "" {
 		handlerOpts.Level = slog.LevelDebug
 	}
-		return slog.New(slog.NewTextHandler(w, &handlerOpts))
-	}
-
-	// In headless mode, always log to stderr.
-	if headless {
-		return build(os.Stderr), nil
-	}
-
-	if !cfg.Enabled {
-		return slog.New(slog.DiscardHandler), nil
-	}
-
-	fptr, err := os.OpenFile(cfg.GetPath(), os.O_RDWR|os.O_CREATE|os.O_APPEND, 0666)
-	if err != nil {
-		return nil, fmt.Errorf("error opening log file: %w", err)
-	}
-
-	return build(fptr), nil
+	return slog.New(slog.NewTextHandler(os.Stderr, &handlerOpts)), nil
 }

internal/app/app.go

@@ -32,7 +32,6 @@ type App struct {
 	dispatchC          chan event.Command
 	dockerClient       container.DockerClient
 	screen             *terminal.Screen // Screen may be nil.
-	headless           bool
 	clipboardAvailable bool
 	configFilePath     string
 	buildInfo          domain.BuildInfo
@@ -45,7 +44,6 @@ type Params struct {
 	DockerClient       container.DockerClient
 	ChanSize           int
 	Screen             *terminal.Screen // Screen may be nil.
-	Headless           bool
 	ClipboardAvailable bool
 	ConfigFilePath     string
 	BuildInfo          domain.BuildInfo
@@ -64,7 +62,6 @@ func New(params Params) *App {
 		dispatchC:          make(chan event.Command, cmp.Or(params.ChanSize, defaultChanSize)),
 		dockerClient:       params.DockerClient,
 		screen:             params.Screen,
-		headless:           params.Headless,
 		clipboardAvailable: params.ClipboardAvailable,
 		configFilePath:     params.ConfigFilePath,
 		buildInfo:          params.BuildInfo,
@@ -83,46 +80,10 @@ func (a *App) Run(ctx context.Context) error {
 		return errors.New("config: either sources.mediaServer.rtmp.enabled or sources.mediaServer.rtmps.enabled must be set")
 	}
 
-	if !a.headless {
-		ui, err := terminal.StartUI(ctx, terminal.StartParams{
-			EventBus:           a.eventBus,
-			Dispatcher:         func(cmd event.Command) { a.dispatchC <- cmd },
-			Screen:             a.screen,
-			ClipboardAvailable: a.clipboardAvailable,
-			ConfigFilePath:     a.configFilePath,
-			BuildInfo:          a.buildInfo,
-			Logger:             a.logger.With("component", "ui"),
-		})
-		if err != nil {
-			return fmt.Errorf("start terminal user interface: %w", err)
-		}
-		defer ui.Close()
-	}
-
-	// emptyUI is a dummy function that sets the UI state to an empty state, and
-	// re-renders the screen.
-	//
-	// This is a workaround for a weird interaction between tview and
-	// tcell.SimulationScreen which leads to newly-added pages not rendering if
-	// the UI is not re-rendered for a second time.
-	// It is only needed for integration tests when rendering modals before the
-	// main loop starts. It would be nice to remove this but the risk/impact on
-	// non-test code is pretty low.
-	emptyUI := func() {
-		a.eventBus.Send(event.AppStateChangedEvent{State: domain.AppState{}})
-	}
-
 	// doFatalError publishes a fatal error to the event bus, waiting for the
 	// user to acknowledge it if not in headless mode.
 	doFatalError := func(msg string) {
 		a.eventBus.Send(event.FatalErrorOccurredEvent{Message: msg})
-
-		if a.headless {
-			return
-		}
-
-		emptyUI()
-		<-a.dispatchC
 	}
 
 	const grpcAddr = ":50051"
@@ -195,16 +156,12 @@ func (a *App) Run(ctx context.Context) error {
 	defer uiUpdateT.Stop()
 
 	startMediaServerC := make(chan struct{}, 1)
-	if a.headless { // disable startup check in headless mode for now
-		startMediaServerC <- struct{}{}
-	} else {
 	if ok, startupErr := doStartupCheck(ctx, containerClient, a.eventBus); startupErr != nil {
 		doFatalError(startupErr.Error())
 		return startupErr
 	} else if ok {
 		startMediaServerC <- struct{}{}
 	}
-	}
 
 	for {
 		select {