Return all currently running streams

supabase/migrations/20251206081501_multi-concurrent-streams-support.sql

@@ -0,0 +1,35 @@
+alter table "public"."event_streams"
+    add column if not exists "end_time" timestamp with time zone null,
+    add column if not exists "primary" boolean default true not null;
+
+update "public"."event_streams" s set end_time = s.start_time + interval '1 day' where end_time is null;
+
+
+alter table "public"."event_streams"
+    alter column "start_time" set not null,
+    alter column "end_time" set not null;
+
+drop view if exists "public"."event_current_stream";
+
+create view "public"."event_current_stream" with(security_invoker=true) as (
+  with qid(event_id, platform, url, title, start_time, end_time) as (
+    select
+      es.event_id,
+      es.platform,
+      case when es.platform = 'Youtube' then 'https://youtube.com/watch?v=' || es.internal_id
+           when es.platform = 'Twitch' then 'https://twitch.tv/' || es.internal_id
+      end,
+      es.title,
+      es.start_time,
+      null
+    from event_streams es
+    where es.end_time > now() and es.primary
+  )
+  select e.code, coalesce(
+      -- first try streams currently running
+      (select json_agg(t) from (select es.url, es.title, es.platform from qid es where es.event_id = e.id and es.start_time < now() order by es.start_time asc, es.title asc) t),
+      -- otherwise return the first stream(s)
+      (select json_agg(t) from (select es.url, es.title, es.platform from qid es where es.event_id = e.id order by es.start_time asc limit 1 ) t)
+    ) url from events e
+    where exists(select 1 from event_streams es where e.id = es.event_id)
+);