76 lines
2.8 KiB
Crystal
76 lines
2.8 KiB
Crystal
class Invidious::Jobs::RefreshFeedsJob < Invidious::Jobs::BaseJob
|
|
private getter db : DB::Database
|
|
|
|
def initialize(@db)
|
|
end
|
|
|
|
def begin
|
|
max_fibers = CONFIG.feed_threads
|
|
active_fibers = 0
|
|
active_channel = Channel(Bool).new
|
|
|
|
loop do
|
|
db.query("SELECT email FROM users WHERE feed_needs_update = true OR feed_needs_update IS NULL") do |rs|
|
|
rs.each do
|
|
email = rs.read(String)
|
|
view_name = "subscriptions_#{sha256(email)}"
|
|
|
|
if active_fibers >= max_fibers
|
|
if active_channel.receive
|
|
active_fibers -= 1
|
|
end
|
|
end
|
|
|
|
active_fibers += 1
|
|
spawn do
|
|
begin
|
|
# Drop outdated views
|
|
column_array = get_column_array(db, view_name)
|
|
ChannelVideo.type_array.each_with_index do |name, i|
|
|
if name != column_array[i]?
|
|
LOGGER.info("RefreshFeedsJob: DROP MATERIALIZED VIEW #{view_name}")
|
|
db.exec("DROP MATERIALIZED VIEW #{view_name}")
|
|
raise "view does not exist"
|
|
end
|
|
end
|
|
|
|
if !db.query_one("SELECT pg_get_viewdef('#{view_name}')", as: String).includes? "WHERE ((cv.ucid = ANY (u.subscriptions))"
|
|
LOGGER.info("RefreshFeedsJob: Materialized view #{view_name} is out-of-date, recreating...")
|
|
db.exec("DROP MATERIALIZED VIEW #{view_name}")
|
|
end
|
|
|
|
db.exec("REFRESH MATERIALIZED VIEW #{view_name}")
|
|
db.exec("UPDATE users SET feed_needs_update = false WHERE email = $1", email)
|
|
rescue ex
|
|
# Rename old views
|
|
begin
|
|
legacy_view_name = "subscriptions_#{sha256(email)[0..7]}"
|
|
|
|
db.exec("SELECT * FROM #{legacy_view_name} LIMIT 0")
|
|
LOGGER.info("RefreshFeedsJob: RENAME MATERIALIZED VIEW #{legacy_view_name}")
|
|
db.exec("ALTER MATERIALIZED VIEW #{legacy_view_name} RENAME TO #{view_name}")
|
|
rescue ex
|
|
begin
|
|
# While iterating through, we may have an email stored from a deleted account
|
|
if db.query_one?("SELECT true FROM users WHERE email = $1", email, as: Bool)
|
|
LOGGER.info("RefreshFeedsJob: CREATE #{view_name}")
|
|
db.exec("CREATE MATERIALIZED VIEW #{view_name} AS #{MATERIALIZED_VIEW_SQL.call(email)}")
|
|
db.exec("UPDATE users SET feed_needs_update = false WHERE email = $1", email)
|
|
end
|
|
rescue ex
|
|
LOGGER.error("RefreshFeedJobs: REFRESH #{email} : #{ex.message}")
|
|
end
|
|
end
|
|
end
|
|
|
|
active_channel.send(true)
|
|
end
|
|
end
|
|
end
|
|
|
|
sleep 5.seconds
|
|
Fiber.yield
|
|
end
|
|
end
|
|
end
|