--[[
  Function to recursively check if there are no locks
  on the jobs to be removed.

  returns:
    boolean
]]
--- @include "destructureJobKey"

local function isLocked( prefix, jobId, removeChildren)
  local jobKey = prefix .. jobId;

  -- Check if this job is locked
  local lockKey = jobKey .. ':lock'
  local lock = rcall("GET", lockKey)
  if not lock then
    if removeChildren == "1" then
      local dependencies = rcall("SMEMBERS", jobKey .. ":dependencies")
      if (#dependencies > 0) then
        for i, childJobKey in ipairs(dependencies) do
          -- We need to get the jobId for this job.
          local childJobId = getJobIdFromKey(childJobKey)
          local childJobPrefix = getJobKeyPrefix(childJobKey, childJobId)
          local result = isLocked( childJobPrefix, childJobId, removeChildren )
          if result then
            return true
          end
        end
      end
    end
    return false
  end
  return true
end