--[[
  Function to remove from any state.

  returns:
    prev state
]]

local function removeJobFromAnyState( prefix, jobId)
  -- We start with the ZSCORE checks, since they have O(1) complexity
  if rcall("ZSCORE", prefix .. "completed", jobId) then
    rcall("ZREM", prefix .. "completed", jobId)
    return "completed"
  elseif rcall("ZSCORE", prefix .. "waiting-children", jobId) then
    rcall("ZREM", prefix .. "waiting-children", jobId)
    return "waiting-children"
  elseif rcall("ZSCORE", prefix .. "delayed", jobId) then
    rcall("ZREM", prefix .. "delayed", jobId)
    return "delayed"
  elseif rcall("ZSCORE", prefix .. "failed", jobId) then
    rcall("ZREM", prefix .. "failed", jobId)
    return "failed"
  elseif rcall("ZSCORE", prefix .. "prioritized", jobId) then
    rcall("ZREM", prefix .. "prioritized", jobId)
    return "prioritized"
  -- We remove only 1 element from the list, since we assume they are not added multiple times
  elseif rcall("LREM", prefix .. "wait", 1, jobId) == 1 then
    return "wait"
  elseif rcall("LREM", prefix .. "paused", 1, jobId) == 1 then
    return "paused"
  elseif rcall("LREM", prefix .. "active", 1, jobId) == 1 then
    return "active"
  end

  return "unknown"
end