104 lines
2.8 KiB
Go
104 lines
2.8 KiB
Go
package client
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import (
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"context"
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"fmt"
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"git.netflux.io/rob/octoplex/internal/domain"
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"git.netflux.io/rob/octoplex/internal/event"
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pb "git.netflux.io/rob/octoplex/internal/generated/grpc"
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"git.netflux.io/rob/octoplex/internal/protocol"
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"git.netflux.io/rob/octoplex/internal/terminal"
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"github.com/sagikazarmark/slog-shim"
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"golang.org/x/sync/errgroup"
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"google.golang.org/grpc"
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"google.golang.org/grpc/credentials/insecure"
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)
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// App is the client application.
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type App struct {
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bus *event.Bus
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clipboardAvailable bool
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buildInfo domain.BuildInfo
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screen *terminal.Screen
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logger *slog.Logger
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}
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// NewParams contains the parameters for the App.
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type NewParams struct {
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ClipboardAvailable bool
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BuildInfo domain.BuildInfo
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Screen *terminal.Screen
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Logger *slog.Logger
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}
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// New creates a new App instance.
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func New(params NewParams) *App {
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return &App{
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bus: event.NewBus(params.Logger),
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clipboardAvailable: params.ClipboardAvailable,
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buildInfo: params.BuildInfo,
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screen: params.Screen,
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logger: params.Logger,
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}
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}
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// Run starts the application, and blocks until it is closed.
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func (a *App) Run(ctx context.Context) error {
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g, ctx := errgroup.WithContext(ctx)
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conn, err := grpc.NewClient("localhost:50051", grpc.WithTransportCredentials(insecure.NewCredentials()))
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if err != nil {
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return fmt.Errorf("connect to gRPC server: %w", err)
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}
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apiClient := pb.NewInternalAPIClient(conn)
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stream, err := apiClient.Communicate(ctx)
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if err != nil {
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return fmt.Errorf("create gRPC stream: %w", err)
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}
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g.Go(func() error {
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for {
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envelope, recErr := stream.Recv()
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if recErr != nil {
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return fmt.Errorf("receive envelope: %w", recErr)
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}
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evt := envelope.GetEvent()
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if evt == nil {
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a.logger.Error("Received envelope without event")
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continue
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}
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a.logger.Debug("Received event")
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a.bus.Send(protocol.EventFromProto(evt))
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}
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})
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ui, err := terminal.NewUI(ctx, terminal.Params{
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EventBus: a.bus,
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Dispatcher: func(cmd event.Command) {
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a.logger.Info("Command dispatched", "cmd", cmd.Name())
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if sendErr := stream.Send(&pb.Envelope{Payload: &pb.Envelope_Command{Command: protocol.CommandToProto(cmd)}}); sendErr != nil {
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a.logger.Error("Error sending command to gRPC API", "err", sendErr)
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}
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},
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ClipboardAvailable: a.clipboardAvailable,
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BuildInfo: a.buildInfo,
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Screen: a.screen,
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Logger: a.logger.With("component", "ui"),
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})
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if err != nil {
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return fmt.Errorf("start terminal user interface: %w", err)
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}
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defer ui.Close()
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g.Go(func() error { return ui.Run(ctx) })
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if err := g.Wait(); err == terminal.ErrUserClosed {
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return nil
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} else {
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return fmt.Errorf("errgroup.Wait: %w", err)
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}
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}
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