octoplex/app/app.go
2025-02-14 19:06:01 +01:00

119 lines
3.1 KiB
Go

package app
import (
"context"
"fmt"
"log/slog"
"os"
"time"
"git.netflux.io/rob/termstream/config"
"git.netflux.io/rob/termstream/container"
"git.netflux.io/rob/termstream/domain"
"git.netflux.io/rob/termstream/mediaserver"
"git.netflux.io/rob/termstream/multiplexer"
"git.netflux.io/rob/termstream/terminal"
)
const uiUpdateInterval = 2 * time.Second
// Run starts the application, and blocks until it exits.
func Run(
ctx context.Context,
cfg config.Config,
dockerClient container.DockerClient,
) error {
state := new(domain.AppState)
applyConfig(cfg, state)
logFile, err := os.OpenFile(cfg.LogFile, os.O_RDWR|os.O_CREATE|os.O_APPEND, 0666)
if err != nil {
return fmt.Errorf("error opening log file: %w", err)
}
logger := slog.New(slog.NewTextHandler(logFile, nil))
ui, err := terminal.StartActor(ctx, terminal.StartActorParams{Logger: logger.With("component", "ui")})
if err != nil {
return fmt.Errorf("start tui: %w", err)
}
defer ui.Close()
updateUI := func() { ui.SetState(*state) }
updateUI()
containerClient, err := container.NewClient(ctx, dockerClient, logger.With("component", "container_client"))
if err != nil {
return fmt.Errorf("new container client: %w", err)
}
defer containerClient.Close()
srv := mediaserver.StartActor(ctx, mediaserver.StartActorParams{
ContainerClient: containerClient,
Logger: logger.With("component", "mediaserver"),
})
defer srv.Close()
mp := multiplexer.NewActor(ctx, multiplexer.NewActorParams{
SourceURL: srv.State().RTMPInternalURL,
ContainerClient: containerClient,
Logger: logger.With("component", "multiplexer"),
})
defer mp.Close()
uiTicker := time.NewTicker(uiUpdateInterval)
defer uiTicker.Stop()
for {
select {
case cmd, ok := <-ui.C():
if !ok {
// TODO: keep UI open until all containers have closed
logger.Info("UI closed")
return nil
}
logger.Info("Command received", "cmd", cmd.Name())
switch c := cmd.(type) {
case terminal.CommandToggleDestination:
mp.ToggleDestination(c.URL)
case terminal.CommandQuit:
return nil
}
case <-uiTicker.C:
// TODO: update UI with current state?
updateUI()
case serverState := <-srv.C():
applyServerState(serverState, state)
updateUI()
case mpState := <-mp.C():
applyMultiplexerState(mpState, state)
updateUI()
}
}
}
// applyServerState applies the current server state to the app state.
func applyServerState(serverState domain.Source, appState *domain.AppState) {
appState.Source = serverState
}
func applyMultiplexerState(destination domain.Destination, appState *domain.AppState) {
for i, dest := range appState.Destinations {
if dest.URL != destination.URL {
continue
}
appState.Destinations[i] = destination
break
}
}
// applyConfig applies the configuration to the app state.
func applyConfig(cfg config.Config, appState *domain.AppState) {
appState.Destinations = make([]domain.Destination, 0, len(cfg.Destinations))
for _, dest := range cfg.Destinations {
appState.Destinations = append(appState.Destinations, domain.Destination{URL: dest.URL})
}
}