--[[
  Attempts to reprocess a job

  Input:
    KEYS[1] job key
    KEYS[2] events stream
    KEYS[3] job state
    KEYS[4] wait key
    KEYS[5] meta
    KEYS[6] paused key
    KEYS[7] active key
    KEYS[8] marker key

    ARGV[1] job.id
    ARGV[2] (job.opts.lifo ? 'R' : 'L') + 'PUSH'
    ARGV[3] propVal - failedReason/returnvalue
    ARGV[4] prev state - failed/completed

  Output:
     1 means the operation was a success
    -1 means the job does not exist
    -3 means the job was not found in the expected set.
]]
local rcall = redis.call;

-- Includes
--- @include "includes/addJobInTargetList"
--- @include "includes/getOrSetMaxEvents"
--- @include "includes/getTargetQueueList"

local jobKey = KEYS[1]
if rcall("EXISTS", jobKey) == 1 then
  local jobId = ARGV[1]
  if (rcall("ZREM", KEYS[3], jobId) == 1) then
    rcall("HDEL", jobKey, "finishedOn", "processedOn", ARGV[3])

    local target, isPausedOrMaxed = getTargetQueueList(KEYS[5], KEYS[7], KEYS[4], KEYS[6])
    addJobInTargetList(target, KEYS[8], ARGV[2], isPausedOrMaxed, jobId)

    local parentKey = rcall("HGET", jobKey, "parentKey")

    if parentKey and rcall("EXISTS", parentKey) == 1 then
      if ARGV[4] == "failed" then
        if rcall("ZREM", parentKey .. ":unsuccessful", jobKey) == 1 or
          rcall("ZREM", parentKey .. ":failed", jobKey) == 1 then
          rcall("SADD", parentKey .. ":dependencies", jobKey)
        end
      else
        if rcall("HDEL", parentKey .. ":processed", jobKey) == 1 then
          rcall("SADD", parentKey .. ":dependencies", jobKey)
        end
      end
    end

    local maxEvents = getOrSetMaxEvents(KEYS[5])
    -- Emit waiting event
    rcall("XADD", KEYS[2], "MAXLEN", "~", maxEvents, "*", "event", "waiting",
      "jobId", jobId, "prev", ARGV[4]);
    return 1
  else
    return -3
  end
else
  return -1
end
