' C4-PlantUML

' Colors
' ##################################

!global $ELEMENT_FONT_COLOR = "#FFFFFF"

!global $ARROW_COLOR = "#666666"

!global $BOUNDARY_COLOR = "#444444"

!global $LEGEND_FONT_COLOR = "#FFFFFF"
!global $LEGEND_TITLE_COLOR = "#000000"
!global $LEGEND_UNDEFINED_BK_COLOR = "#87AECA"
!global $LEGEND_UNDEFINED_FONT_COLOR = "#B7DEFA"

' Styling
' ##################################

!global $TECHN_FONT_SIZE = 12

skinparam defaultTextAlignment center

skinparam wrapWidth 200
skinparam maxMessageSize 150

skinparam LegendBorderColor transparent
skinparam LegendBackgroundColor transparent
skinparam LegendFontColor $LEGEND_FONT_COLOR

skinparam rectangle {
    StereotypeFontSize 12
    shadowing false
}

skinparam database {
    StereotypeFontSize 12
    shadowing false
}

skinparam queue {
    StereotypeFontSize 12
    shadowing false
}

skinparam Arrow {
    Color $ARROW_COLOR
    FontColor $ARROW_COLOR
    FontSize 12
}

skinparam rectangle<<boundary>> {
    Shadowing false
    StereotypeFontSize 0
    FontColor $BOUNDARY_COLOR
    BorderColor $BOUNDARY_COLOR
    BorderStyle dashed
}

' Legend and Tags
' ##################################
!global $tagDefaultLegend = ""
!global $tagCustomLegend = ""

!unquoted function $toStereos($elementType, $tags)
  !if (%strlen($tags) == 0)
    !$stereos = '<<' + $elementType + '>>'
%set_variable_value("$" + $elementType + "Legend", %true())
    !return $stereos
  !endif 
  !$stereos = ''
  !$brPos = %strpos($tags, "+")
  !while ($brPos >= 0)
    !$tag = %substr($tags, 0, $brPos)
    !$stereos = $stereos + '<<' + $tag + '>>'
%set_variable_value("$" + $tag + "Legend", %true())
    !$tags = %substr($tags, $brPos+1)
    !$brPos = %strpos($tags, "+")
  !endwhile
  !if (%strlen($tags)>0)
    !$stereos = $stereos + '<<' + $tags + '>>'
%set_variable_value("$" + $tags + "Legend", %true())
  !endif
  ' has to be last, otherwise PlantUML overwrites all tag specific skinparams
  !$stereos = $stereos + '<<' + $elementType + '>>'
%set_variable_value("$" + $elementType + "Legend", %true())
  !return $stereos
!endfunction

!function $elementTagSkinparams($element, $tagStereo, $bgColor, $fontColor, $borderColor, $shadowing)
  !$elementSkin = "skinparam " + $element +"<<" + $tagStereo + ">> {" + %newline()
  !if ($fontColor!="")
    !$elementSkin = $elementSkin + "    StereotypeFontColor " + $fontColor + %newline()
    !$elementSkin = $elementSkin + "    FontColor " + $fontColor + %newline()
  !endif
  !if ($bgColor!="")
    !$elementSkin = $elementSkin + "    BackgroundColor " + $bgColor + %newline()
  !endif
  !if ($borderColor!="")
    !$elementSkin = $elementSkin + "    BorderColor " + $borderColor+ %newline()
  !endif
  !if ($shadowing == "true")
    !$elementSkin = $elementSkin + "    Shadowing<<" + $tagStereo + ">> " + "true" + %newline()
  !endif
  !if ($shadowing == "false")
    !$elementSkin = $elementSkin + "    Shadowing<<" + $tagStereo + ">> " + "false" + %newline()
  !endif
  !$elementSkin = $elementSkin + "}" + %newline()
  !return $elementSkin
!endfunction

!unquoted procedure $defineSkinparams($tagStereo, $bgColor, $fontColor, $borderColor, $shadowing)
  !$tagSkin = $elementTagSkinparams("rectangle", $tagStereo, $bgColor, $fontColor, $borderColor, $shadowing)
  !$tagSkin = $tagSkin + $elementTagSkinparams("database", $tagStereo, $bgColor, $fontColor, $borderColor, $shadowing)
  !$tagSkin = $tagSkin + $elementTagSkinparams("queue", $tagStereo, $bgColor, $fontColor, $borderColor, $shadowing)
$tagSkin
!endprocedure

!function $tagLegendEntry($tagStereo, $bgColor, $fontColor, $borderColor, $shadowing)
  !$tagEntry = "|"
  !if ($bgColor!="")
    !$bg = $bgColor
  !else
    !$bg = $LEGEND_UNDEFINED_BK_COLOR
  !endif
  ' named colors have to start with # too 
  !if (%substr($bg, 0, 1) != "#")
    !$bg = "#" + $bg
  !endif
  !$tagEntry = $tagEntry + "<" + $bg +">" 
  ' <U+25AF> ..white rectangle
  !if ($borderColor!="")
    !$tagEntry = $tagEntry + "<color:"+$borderColor+"><U+25AF></color> "
  !else
    !$tagEntry = $tagEntry + "<color:"+$bg+"><U+25AF></color> "
  !endif
  !if ($fontColor!="")
    !$tagEntry = $tagEntry + "<color:"+$fontColor+">"
  !else
    !$tagEntry = $tagEntry + "<color:"+$LEGEND_UNDEFINED_FONT_COLOR+">"
  !endif
  !$tagEntry = $tagEntry + " " + $tagStereo + " "
  !if ($shadowing == "true")
    !$tagEntry = $tagEntry + "(shadow) "
  !endif
  !if ($shadowing == "false")
    !$tagEntry = $tagEntry + "(no shadow) "
  !endif
  !if ($fontColor == "" && $bgColor == "")
      !$tagEntry = $tagEntry + "(no font, no back color) "
  !else 
    !if ($fontColor == "")
      !$tagEntry = $tagEntry + "(no font color) "
    !endif
    !if ($bgColor == "")
      !$tagEntry = $tagEntry + "(no back color) "
    !endif
  !endif
  !$tagEntry = $tagEntry + "</color> "
  !$tagEntry = $tagEntry + "|"
  !return $tagEntry 
!endfunction

!unquoted procedure $addTagToDynamicLegend($tagStereo, $bgColor="", $fontColor="", $borderColor="", $shadowing="")
  !$tagEntry = $tagLegendEntry($tagStereo, $bgColor, $fontColor, $borderColor, $shadowing)
%set_variable_value("$" + $tagStereo + "LegendEntry", $tagEntry)
  !$tagCustomLegend = $tagCustomLegend + $tagStereo + "\n"
!endprocedure

!procedure $showActiveLegendEntries($allDefined)
  !$brPos = %strpos($allDefined, "\n")
  !while ($brPos >= 0)
    !$tagStereo = %substr($allDefined, 0, $brPos)
    !$allDefined = %substr($allDefined, $brPos+2)
    !$brPos = %strpos($allDefined, "\n")
    !if (%variable_exists("$" + $tagStereo + "Legend"))
%get_variable_value("$" + $tagStereo + "LegendEntry")
    !endif
  !endwhile
  !if (%strlen($allDefined)>0)
    !$tagStereo = $allDefined
    !if (%variable_exists("$" + $tagStereo + "Legend"))
%get_variable_value("$" + $tagStereo + "LegendEntry")
    !endif
  !endif
!endprocedure

' used by new defined tags
!unquoted procedure AddTagSupport($tagStereo, $bgColor="", $fontColor="", $borderColor="", $shadowing="")
$defineSkinparams($tagStereo, $bgColor, $fontColor, $borderColor, $shadowing)
$addTagToDynamicLegend($tagStereo, $bgColor, $fontColor, $borderColor, $shadowing)
!endprocedure

' used by existing elements like person, ...
!unquoted procedure UpdateSkinparamsAndLegendEntry($tagStereo, $bgColor="", $fontColor="", $borderColor="", $shadowing="")
$defineSkinparams($tagStereo, $bgColor, $fontColor, $borderColor, $shadowing)
  !$tagEntry = $tagLegendEntry($tagStereo, $bgColor, $fontColor, $borderColor, $shadowing)
%set_variable_value("$" + $tagStereo + "LegendEntry", $tagEntry)
!endprocedure

' tags/stereotypes have to be delimited with \n 
!unquoted procedure SetDefaultLegendEntries($tagStereoEntries)
  !$tagDefaultLegend = $tagStereoEntries
!endprocedure

' Layout
' ##################################

!procedure HIDE_STEREOTYPE()
hide stereotype
!endprocedure

!procedure LAYOUT_AS_SKETCH()
skinparam backgroundColor #EEEBDC
skinparam handwritten true
skinparam defaultFontName "Comic Sans MS"
center footer <font color=red>Warning:</font> Created for discussion, needs to be validated
!endprocedure

!procedure LAYOUT_TOP_DOWN()
top to bottom direction
!endprocedure

!procedure LAYOUT_LEFT_RIGHT() 
left to right direction
!endprocedure

' has to be last call in diagram
!unquoted procedure SHOW_DYNAMIC_LEGEND($hideStereotype="true")
!if ($hideStereotype=="true")
hide stereotype
!endif
legend right
|<color:$LEGEND_TITLE_COLOR>**Legend**</color> |
$showActiveLegendEntries($tagDefaultLegend)
$showActiveLegendEntries($tagCustomLegend)
endlegend
!endprocedure

' Boundaries
' ##################################

!function $getBoundary($label, $type)
  !if ($type == "")
    !return '==' + $label
  !endif
  !if (type != "")
    !return '==' + $label + '\n<size:' + $TECHN_FONT_SIZE + '>[' + $type + ']</size>'
  !endif
!endfunction

!unquoted procedure Boundary($alias, $label, $type="", $tags="")
rectangle "$getBoundary($label, $type)" $toStereos("boundary", $tags) as $alias
!endprocedure

' Relationship
' ##################################

!unquoted procedure Rel_($alias1, $alias2, $label, $direction="")
$alias1 $direction $alias2 : **$label**
!endprocedure
!unquoted procedure Rel_($alias1, $alias2, $label, $techn, $direction="")
$alias1 $direction $alias2 : **$label**\n//<size:$TECHN_FONT_SIZE>[$techn]</size>//
!endprocedure

!unquoted procedure Rel($from, $to, $label)
Rel_($from, $to, $label, "-->>")
!endprocedure
!unquoted procedure Rel($from, $to, $label, $techn)
Rel_($from, $to, $label, $techn, "-->>")
!endprocedure

!unquoted procedure BiRel($from, $to, $label)
Rel_($from, $to, $label, "<<-->>")
!endprocedure
!unquoted procedure BiRel($from, $to, $label, $techn)
Rel_($from, $to, $label, $techn, "<<-->>")
!endprocedure

!unquoted procedure Rel_Back($from, $to, $label)
Rel_($from, $to, $label, "<<--")
!endprocedure
!unquoted procedure Rel_Back($from, $to, $label, $techn)
Rel_($from, $to, $label, $techn, "<<--")
!endprocedure

!unquoted procedure Rel_Neighbor($from, $to, $label)
Rel_($from, $to, $label, "->>")
!endprocedure
!unquoted procedure Rel_Neighbor($from, $to, $label, $techn)
Rel_($from, $to, $label, $techn, "->>")
!endprocedure

!unquoted procedure Rel_Back_Neighbor($from, $to, $label)
Rel_($from, $to, $label, "<<-")
!endprocedure
!unquoted procedure Rel_Back_Neighbor($from, $to, $label, $techn)
Rel_($from, $to, $label, $techn, "<<-")
!endprocedure

!unquoted procedure Rel_D($from, $to, $label)
Rel_($from, $to, $label, "-DOWN->>")
!endprocedure
!unquoted procedure Rel_D($from, $to, $label, $techn)
Rel_($from, $to, $label, $techn, "-DOWN->>")
!endprocedure
!unquoted procedure Rel_Down($from, $to, $label)
Rel_($from, $to, $label, "-DOWN->>")
!endprocedure
!unquoted procedure Rel_Down($from, $to, $label, $techn)
Rel_($from, $to, $label, $techn, "-DOWN->>")
!endprocedure

!unquoted procedure BiRel_D($from, $to, $label)
Rel_($from, $to, $label, "<<-DOWN->>")
!endprocedure
!unquoted procedure BiRel_D($from, $to, $label, $techn)
Rel_($from, $to, $label, $techn, "<<-DOWN->>")
!endprocedure
!unquoted procedure BiRel_Down($from, $to, $label)
Rel_($from, $to, $label, "<<-DOWN->>")
!endprocedure
!unquoted procedure BiRel_Down($from, $to, $label, $techn)
Rel_($from, $to, $label, $techn, "<<-DOWN->>")
!endprocedure

!unquoted procedure Rel_U($from, $to, $label)
Rel_($from, $to, $label, "-UP->>")
!endprocedure
!unquoted procedure Rel_U($from, $to, $label, $techn)
Rel_($from, $to, $label, $techn, "-UP->>")
!endprocedure
!unquoted procedure Rel_Up($from, $to, $label)
Rel_($from, $to, $label, "-UP->>")
!endprocedure
!unquoted procedure Rel_Up($from, $to, $label, $techn)
Rel_($from, $to, $label, $techn, "-UP->>")
!endprocedure

!unquoted procedure BiRel_U($from, $to, $label)
Rel_($from, $to, $label, "<<-UP->>")
!endprocedure
!unquoted procedure BiRel_U($from, $to, $label, $techn)
Rel_($from, $to, $label, $techn, "<<-UP->>")
!endprocedure
!unquoted procedure BiRel_Up($from, $to, $label)
Rel_($from, $to, $label, "<<-UP->>")
!endprocedure
!unquoted procedure BiRel_Up($from, $to, $label, $techn)
Rel_($from, $to, $label, $techn, "<<-UP->>")
!endprocedure

!unquoted procedure Rel_L($from, $to, $label)
Rel_($from, $to, $label, "-LEFT->>")
!endprocedure
!unquoted procedure Rel_L($from, $to, $label, $techn)
Rel_($from, $to, $label, $techn, "-LEFT->>")
!endprocedure
!unquoted procedure Rel_Left($from, $to, $label)
Rel_($from, $to, $label, "-LEFT->>")
!endprocedure
!unquoted procedure Rel_Left($from, $to, $label, $techn)
Rel_($from, $to, $label, $techn, "-LEFT->>")
!endprocedure

!unquoted procedure BiRel_L($from, $to, $label)
Rel_($from, $to, $label, "<<-LEFT->>")
!endprocedure
!unquoted procedure BiRel_L($from, $to, $label, $techn)
Rel_($from, $to, $label, $techn, "<<-LEFT->>")
!endprocedure
!unquoted procedure BiRel_Left($from, $to, $label)
Rel_($from, $to, $label, "<<-LEFT->>")
!endprocedure
!unquoted procedure BiRel_Left($from, $to, $label, $techn)
Rel_($from, $to, $label, $techn, "<<-LEFT->>")
!endprocedure

!unquoted procedure Rel_R($from, $to, $label)
Rel_($from, $to, $label, "-RIGHT->>")
!endprocedure
!unquoted procedure Rel_R($from, $to, $label, $techn)
Rel_($from, $to, $label, $techn, "-RIGHT->>")
!endprocedure
!unquoted procedure Rel_Right($from, $to, $label)
Rel_($from, $to, $label, "-RIGHT->>")
!endprocedure
!unquoted procedure Rel_Right($from, $to, $label, $techn)
Rel_($from, $to, $label, $techn, "-RIGHT->>")
!endprocedure

!unquoted procedure BiRel_R($from, $to, $label)
Rel_($from, $to, $label, "<<-RIGHT->>")
!endprocedure
!unquoted procedure BiRel_R($from, $to, $label, $techn)
Rel_($from, $to, $label, $techn, "<<-RIGHT->>")
!endprocedure
!unquoted procedure BiRel_Right($from, $to, $label)
Rel_($from, $to, $label, "<<-RIGHT->>")
!endprocedure
!unquoted procedure BiRel_Right($from, $to, $label, $techn)
Rel_($from, $to, $label, $techn, "<<-RIGHT->>")
!endprocedure

' Layout Helpers
' ##################################

!unquoted procedure Lay_D($from, $to)
$from -[hidden]D- $to
!endprocedure
!unquoted procedure Lay_U($from, $to)
$from -[hidden]U- $to
!endprocedure
!unquoted procedure Lay_R($from, $to)
$from -[hidden]R- $to
!endprocedure
!unquoted procedure Lay_L($from, $to)
$from -[hidden]L- $to
!endprocedure