arcast/cmd/mobile/main.go

package main

import (
	"context"
	"crypto/tls"
	"os"
	"path/filepath"

	"forge.cadoles.com/arcad/arcast"
	"forge.cadoles.com/arcad/arcast/pkg/browser/gioui"
	"forge.cadoles.com/arcad/arcast/pkg/config"
	"forge.cadoles.com/arcad/arcast/pkg/server"
	"gioui.org/app"
	"gioui.org/io/system"
	"gioui.org/layout"
	"gioui.org/op"
	"github.com/gioui-plugins/gio-plugins/plugin"
	"github.com/gioui-plugins/gio-plugins/webviewer/webview"
	"github.com/pkg/errors"
	"gitlab.com/wpetit/goweb/logger"
)

const packageName = "com.cadoles.arcast_player"

func main() {
	ctx := context.Background()

	webview.SetDebug(true)
	window := app.NewWindow(
		app.Fullscreen.Option(),
	)

	browser := gioui.NewBrowser(window)

	go func() {
		ops := new(op.Ops)
		for {
			evt := window.NextEvent()
			plugin.Install(window, evt)

			switch evt := evt.(type) {
			case system.DestroyEvent:
				os.Exit(0)
				return
			case system.FrameEvent:
				gtx := layout.NewContext(ops, evt)
				browser.Layout(gtx)
				evt.Frame(gtx.Ops)
			}
		}
	}()

	go func() {

		for {
			ctx, cancel := context.WithCancel(ctx)
			defer cancel()

			conf := config.DefaultConfig()
			configFiles := getConfigFiles(ctx)
			for _, f := range configFiles {
				logger.Info(ctx, "loading or creating configuration file", logger.F("filename", f))
				if err := config.LoadOrCreate(ctx, f, conf, config.DefaultTransforms...); err != nil {
					logger.Error(ctx, "could not load configuration file", logger.CapturedE(errors.WithStack(err)))
					continue
				}

				break
			}

			cert, err := tls.X509KeyPair(conf.HTTPS.Cert, conf.HTTPS.Key)
			if err != nil {
				logger.Fatal(ctx, "could not parse x509 certificate", logger.CapturedE(errors.WithStack(err)))
			}

			server := server.New(
				browser,
				server.WithInstanceID(conf.InstanceID),
				server.WithAppsEnabled(conf.Apps.Enabled),
				server.WithDefaultApp(conf.Apps.DefaultApp),
				server.WithApps(arcast.DefaultApps...),
				server.WithTLSCertificate(&cert),
				server.WithAddress(conf.HTTP.Address),
				server.WithTLSAddress(conf.HTTPS.Address),
				server.WithAllowedOrigins(conf.AllowedOrigins...),
			)

			if err := server.Start(); err != nil {
				logger.Fatal(ctx, "could not start server", logger.CapturedE(errors.WithStack(err)))
			}

			defer func() {
				if err := server.Stop(); err != nil {
					logger.Error(ctx, "could not stop server", logger.CapturedE(errors.WithStack(err)))
				}
			}()

			if err := server.Wait(); err != nil {
				logger.Error(ctx, "could not wait for server", logger.CapturedE(errors.WithStack(err)))
			}
		}
	}()

	app.Main()
}

func getConfigFiles(ctx context.Context) []string {
	configFiles := make([]string, 0)

	sharedStorageConfigFile := filepath.Join("/storage/emulated/0/Android/data", packageName, "files/config.json")
	configFiles = append(configFiles, sharedStorageConfigFile)

	dataDir, err := app.DataDir()
	if err != nil {
		logger.Error(ctx, "could not retrieve app data dir", logger.CapturedE(errors.WithStack(err)))
	} else {
		appDataConfigFile := filepath.Join(dataDir, "config.json")
		configFiles = append(configFiles, appDataConfigFile)
	}

	return configFiles
}