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dwelling-radio/cmd/dwelling-radiodj/main.go

100 lines
2.3 KiB
Go

package main
import (
ihttp "dwelling-radio/internal/http"
"dwelling-radio/internal/radio"
"flag"
"fmt"
"io/fs"
"log"
"net/http"
"os"
"os/signal"
"syscall"
"git.arav.su/Arav/httpr"
)
var (
listenAddress = flag.String("listen", "/var/run/dwelling-radio/sock", "listen address (ip:port|unix_path)")
playlist = flag.String("playlist", "", "path to a playlist")
songListLen = flag.Int("list-length", 10, "number of songs to show in last N songs table")
mostListenedSongPath = flag.String("mls-file", "/mnt/data/appdata/radio/mostlistenedsong", "path to a file that stores info about the most listened song")
showVersion = flag.Bool("v", false, "show version")
)
var version string
func main() {
flag.Parse()
log.SetFlags(log.Lshortfile)
if *showVersion {
fmt.Println("dwelling-radio ver.", version, "\nCopyright (c) 2023 Alexander \"Arav\" Andreev <me@arav.su>")
return
}
r := httpr.New()
lstnrs := radio.NewListeners()
plylst, err := radio.NewPlaylist(*playlist, true)
if err != nil {
log.Fatalln(err)
}
if data, err := os.ReadFile(*mostListenedSongPath); err == nil {
if err := radio.LoadMostListenedSong(data); err != nil {
log.Fatalln(err)
}
}
djh := ihttp.NewDJHandlers(lstnrs, plylst, *songListLen)
s := r.Sub("/listener")
s.Handler(http.MethodGet, "/", djh.ListenersGet)
s.Handler(http.MethodPost, "/", djh.ListenersInc)
s.Handler(http.MethodDelete, "/", djh.ListenersDec)
s = r.Sub("/playlist")
s.Handler(http.MethodGet, "/", djh.PlaylistNext)
s = r.Sub("/song")
s.Handler(http.MethodGet, "/", djh.Song)
srv := ihttp.NewHttpServer(r)
if err := srv.Start(*listenAddress); err != nil {
log.Fatalln(err)
}
defer func() {
fileData := radio.StoreMostListenedSong()
if fileData != nil {
err := os.WriteFile(*mostListenedSongPath, fileData, fs.ModePerm)
if err != nil {
log.Println("failed to store a most listened song:", err)
}
}
if err := srv.Stop(); err != nil {
log.Fatalln(err)
}
}()
doneSignal := make(chan os.Signal, 1)
signal.Notify(doneSignal, os.Interrupt, syscall.SIGINT, syscall.SIGTERM, syscall.SIGSEGV)
reloadSignal := make(chan os.Signal, 1)
signal.Notify(reloadSignal, syscall.SIGHUP)
go func() {
for {
<-reloadSignal
plylst.Reload()
}
}()
<-doneSignal
}