Add back in refreshing of channels every 2 days

Author: matthewmcgarvey

src/invidious/channels/channels.cr

@@ -152,12 +152,14 @@ def get_batch_channels(channels)
   return final
 end
 
-def get_channel(id)
+def get_channel(id) : InvidiousChannel
   channel = Invidious::Database::Channels.select(id)
-  return channel if channel
 
-  channel = fetch_channel(id, pull_all_videos: false)
-  Invidious::Database::Channels.insert(channel)
+  if channel.nil? || (Time.utc - channel.updated) > 2.days
+    channel = fetch_channel(id, pull_all_videos: false)
+    Invidious::Database::Channels.insert(channel, update_on_conflict: true)
+  end
+
   return channel
 end
 

src/invidious/database/channels.cr

@@ -10,14 +10,21 @@ module Invidious::Database::Channels
   #  Insert / delete
   # -------------------
 
-  def insert(channel : InvidiousChannel)
+  def insert(channel : InvidiousChannel, update_on_conflict : Bool = false)
     channel_array = channel.to_a
 
     request = <<-SQL
       INSERT INTO channels
       VALUES (#{arg_array(channel_array)})
     SQL
 
+    if update_on_conflict
+      request += <<-SQL
+        ON CONFLICT (id) DO UPDATE
+        SET author = $2, updated = $3
+      SQL
+    end
+
     PG_DB.exec(request, args: channel_array)
   end