@startuml PLC-Connector-main

skinparam TitleFontSize 24

title Programmablauf PLC-Connector
right footer jomueller, 08.2022

<style>
activityDiagram {
  BackgroundColor #C8C7FF
  BorderColor #7777cc

  partition {
    LineColor #7777cc
    RoundCorner 10
    BackgroundColor #fff
  }
  diamond {
    BackgroundColor #fff
    LineColor #000
  }
}
document {
   BackgroundColor #fff
}
</style>

start
:read config file;
:       initialze 
input modules, 
middlewares, and
output modules;

partition Inputs {
    while (foreach input module)
        if (enabled?) then (yes)
            #FFC5C4:start input thread|
        endif
    end while (end)
}

repeat
    :read input queues<

    partition Middlewares {
        -> values;
        :initialze list of results;
        while (foreach middlewares module)
            if (module enabled?) then (yes)
                #FFC5C4:execute module|
                if (output enabled?) then (yes)
                    :append result to list/
                endif
                :run submodules recursively;
            endif
        end while (end)
    }
    -> results;

    partition Outputs {
        while (foreach output module)
            if (enabled?) then (yes)
                #FFC5C4:write results to output>
            endif
        end while (end)
    }

    backward :sleep;
repeat while(end program?)
-> yes;

:stop input threads;

stop
@enduml