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backend/node_modules/bullmq/dist/cjs/commands/drain-5.lua

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+--[[
+  Drains the queue, removes all jobs that are waiting
+  or delayed, but not active, completed or failed
+
+  Input:
+    KEYS[1] 'wait',
+    KEYS[2] 'paused'
+    KEYS[3] 'delayed'
+    KEYS[4] 'prioritized'
+    KEYS[5] 'jobschedulers' (repeat)
+
+    ARGV[1]  queue key prefix
+    ARGV[2]  should clean delayed jobs
+]]
+local rcall = redis.call
+local queueBaseKey = ARGV[1]
+
+--- @include "includes/removeListJobs"
+--- @include "includes/removeZSetJobs"
+
+-- We must not remove delayed jobs if they are associated to a job scheduler.
+local scheduledJobs = {}
+local jobSchedulers = rcall("ZRANGE", KEYS[5], 0, -1, "WITHSCORES")
+
+-- For every job scheduler, get the current delayed job id.
+for i = 1, #jobSchedulers, 2 do
+    local jobSchedulerId = jobSchedulers[i]
+    local jobSchedulerMillis = jobSchedulers[i + 1]
+
+    local delayedJobId = "repeat:" .. jobSchedulerId .. ":" .. jobSchedulerMillis
+    scheduledJobs[delayedJobId] = true
+end
+
+removeListJobs(KEYS[1], true, queueBaseKey, 0, scheduledJobs) -- wait
+removeListJobs(KEYS[2], true, queueBaseKey, 0, scheduledJobs) -- paused
+
+if ARGV[2] == "1" then
+  removeZSetJobs(KEYS[3], true, queueBaseKey, 0, scheduledJobs) -- delayed
+end
+
+removeZSetJobs(KEYS[4], true, queueBaseKey, 0, scheduledJobs) -- prioritized