export const isSameUser = (user, subject) => user && subject && user.id === subject.id;
+// Channels
+
+export const isChannelAdmin = (user, channel) =>
+ user && channel && user.channel_crews &&
+ user.channel_crews.find(c => c.role === 'admin' && c.channel_id === channel.id);
+
+// Episodes
+
+export const episodeHasChannel = (episode, channel) =>
+ episode && channel && episode.channels && episode.channels.find(c => c.id === channel.id);
+
+export const mayRestreamEpisodes = user =>
+ user && user.channel_crews && user.channel_crews.find(c => c.role === 'admin');
+
+export const mayEditRestream = (user, episode, channel) =>
+ episodeHasChannel(episode, channel) && isChannelAdmin(user, channel);
+
+export const canRestreamEpisode = (user, episode) => {
+ if (!user || !episode || !mayRestreamEpisodes(user)) return false;
+ const available_channels = user.channel_crews
+ .filter(c => c.role === 'admin')
+ .map(c => c.channel_id);
+ const claimed_channels = ((episode && episode.channels) || []).map(c => c.id);
+ const remaining_channels = available_channels.filter(id => !claimed_channels.includes(id));
+ return remaining_channels.length > 0;
+};
+
// Tournaments
export const isApplicant = (user, tournament) => {