#!/usr/bin/liquidsoap
# DO NOT EDIT! WILL BE REPLACED WITH A NEW UPDATE!

%include "radio.vars.liq"

def fullpath(p)
    string.concat([radio_dir, p])
end

def xfade(a, b)
    add(normalize = false,
        [ sequence([ blank(duration = 2.),
                     fade.initial(duration = 2., b)]),
          fade.final(duration = 2., a)])
end

def fallback_alter_title(m) =
    [("artist", radio_name),
     ("title", string.concat(["No stream. (Playing ", m["artist"], " - ", m["title"], ")"]))]
end

settings.server.telnet.set(false)
settings.harbor.bind_addrs.set(["0.0.0.0"])
settings.log.level.set(1)
settings.log.file.set(true)
settings.log.file.path.set(log_file_path)
settings.log.stdout.set(false)

enable_replaygain_metadata()

fallback_song = mksafe(single(fullpath("fallback.ogg")))
fallback_song = metadata.map(fallback_alter_title, fallback_song)

live_mixin = input.harbor("adr-live-mixin", port = harbor_port, password = harbor_password)
live_show = input.harbor("adr-live-show", port = harbor_port, password = harbor_password)
live_show = metadata.map(fun (_) -> [("artist", radio_name), ("title", "Live Show")], live_show)

playlist_random = playlist(fullpath("playlists/all-rand"),
                           prefix = string.concat(["replaygain:", fullpath("music/")]),
                           mode = "normal", reload_mode = "watch")

music = audio_to_stereo(playlist_random)
music = replaygain(music)

radio = smooth_add(p = 0.18, normal = music, special = live_mixin)
radio = fallback(track_sensitive = false,
                 transitions = [xfade, xfade, xfade],
                 [ blank.strip(max_blank=15., live_show),
                   blank.strip(max_blank=90., radio), fallback_song])
radio = normalize(target = -12., threshold = -40., lufs = true, radio)

output.icecast(%vorbis.cbr(bitrate = 128, samplerate = 44100, channels = 2),
               host = icecast_host, port = icecast_port,
               password = icecast_password, encoding = "utf-8",
               name = radio_name, description = radio_desc, public = true,
               mount = icecast_mount, url = radio_url, genre = icecast_genre,
               radio)