' convert it with additional command line argument -DRELATIVE_INCLUDE="." to use locally
!if %variable_exists("RELATIVE_INCLUDE")
  !include %get_variable_value("RELATIVE_INCLUDE")/C4_Context.puml
!else
  !include https://raw.githubusercontent.com/plantuml-stdlib/C4-PlantUML/master/C4_Context.puml
!endif

' Scope: A single software system.
' Primary elements: Containers within the software system in scope.
' Supporting elements: People and software systems directly connected to the containers.
' Intended audience: Technical people inside and outside of the software development team; including software architects, developers and operations/support staff.

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

!global $CONTAINER_BG_COLOR = "#438DD5"
!global $CONTAINER_BORDER_COLOR = "#3C7FC0"
!global $EXTERNAL_CONTAINER_BG_COLOR = "#B3B3B3"
!global $EXTERNAL_CONTAINER_BORDER_COLOR = "#A6A6A6"

' Styling
' ##################################
UpdateElementStyle("container", $CONTAINER_BG_COLOR, $ELEMENT_FONT_COLOR, $CONTAINER_BORDER_COLOR)
UpdateElementStyle("external_container", $EXTERNAL_CONTAINER_BG_COLOR, $ELEMENT_FONT_COLOR, $EXTERNAL_CONTAINER_BORDER_COLOR)

' shortcuts with default colors
!unquoted procedure AddContainerTag($tagStereo, $bgColor=$CONTAINER_BG_COLOR, $fontColor=$ELEMENT_FONT_COLOR, $borderColor=$CONTAINER_BORDER_COLOR, $shadowing="", $shape="", $sprite="", $techn="", $legendText="", $legendSprite="")
  AddElementTag($tagStereo, $bgColor, $fontColor, $borderColor, $shadowing, $shape, $sprite, $techn, $legendText, $legendSprite)
!endprocedure
!unquoted procedure AddExternalContainerTag($tagStereo, $bgColor=$EXTERNAL_CONTAINER_BG_COLOR, $fontColor=$ELEMENT_FONT_COLOR, $borderColor=$EXTERNAL_CONTAINER_BORDER_COLOR, $shadowing="", $shape="", $sprite="", $techn="", $legendText="", $legendSprite="")
  AddElementTag($tagStereo, $bgColor, $fontColor, $borderColor, $shadowing, $shape, $sprite, $techn, $legendText, $legendSprite)
!endprocedure

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

SetDefaultLegendEntries("person\nsystem\ncontainer\nexternal_person\nexternal_system\nexternal_container")

!procedure LAYOUT_WITH_LEGEND()
hide stereotype
legend right
|<color:$LEGEND_TITLE_COLOR>**Legend**</color> |
|<$PERSON_BG_COLOR> person |
|<$SYSTEM_BG_COLOR> system |
|<$CONTAINER_BG_COLOR> container |
|<$EXTERNAL_PERSON_BG_COLOR> external person |
|<$EXTERNAL_SYSTEM_BG_COLOR> external system |
|<$EXTERNAL_CONTAINER_BG_COLOR> external container |
endlegend
!endprocedure

' Elements
' ##################################

!function $getContainer($label, $techn, $descr, $sprite)
!if ($descr == "") && ($sprite == "")
!return '=='+$label+'\n//<size:'+$TECHN_FONT_SIZE+'>['+$techn+']</size>//'
!endif
!if ($descr == "") && ($sprite != "")
!return $getSprite($sprite)+'\n=='+$label+'\n//<size:'+$TECHN_FONT_SIZE+'>['+$techn+']</size>//'
!endif
!if ($descr != "") && ($sprite == "")
!return '=='+$label+'\n//<size:'+$TECHN_FONT_SIZE+'>['+$techn+']</size>//\n\n '+$descr
!endif
!if ($descr != "") && ($sprite != "")
!return $getSprite($sprite)+'\n=='+$label+'\n//<size:'+$TECHN_FONT_SIZE+'>['+$techn+']</size>//\n\n '+$descr
!endif
!endfunction

!unquoted procedure Container($alias, $label, $techn="", $descr="", $sprite="", $tags="", $link="")
!$sprite=$toElementArg($sprite, $tags, "ElementTagSprite", "container")
!$techn=$toElementArg($techn, $tags, "ElementTagTechn", "container")
rectangle "$getContainer($label, $techn, $descr, $sprite)$getProps()" $toStereos("container", $tags) as $alias $getLink($link)
!endprocedure

!unquoted procedure ContainerDb($alias, $label, $techn="", $descr="", $sprite="", $tags="", $link="")
!$sprite=$toElementArg($sprite, $tags, "ElementTagSprite", "container")
!$techn=$toElementArg($techn, $tags, "ElementTagTechn", "container")
database "$getContainer($label, $techn, $descr, $sprite)$getProps()" $toStereos("container", $tags) as $alias $getLink($link)
!endprocedure

!unquoted procedure ContainerQueue($alias, $label, $techn="", $descr="", $sprite="", $tags="", $link="")
!$sprite=$toElementArg($sprite, $tags, "ElementTagSprite", "container")
!$techn=$toElementArg($techn, $tags, "ElementTagTechn", "container")
queue "$getContainer($label, $techn, $descr, $sprite)$getProps()" $toStereos("container", $tags) as $alias $getLink($link)
!endprocedure

!unquoted procedure Container_Ext($alias, $label, $techn="", $descr="", $sprite="", $tags="", $link="")
!$sprite=$toElementArg($sprite, $tags, "ElementTagSprite", "external_container")
!$techn=$toElementArg($techn, $tags, "ElementTagTechn", "external_container")
rectangle "$getContainer($label, $techn, $descr, $sprite)$getProps()" $toStereos("external_container", $tags) as $alias $getLink($link)
!endprocedure

!unquoted procedure ContainerDb_Ext($alias, $label, $techn="", $descr="", $sprite="", $tags="", $link="")
!$sprite=$toElementArg($sprite, $tags, "ElementTagSprite", "external_container")
!$techn=$toElementArg($techn, $tags, "ElementTagTechn", "external_container")
database "$getContainer($label, $techn, $descr, $sprite)$getProps()" $toStereos("external_container", $tags) as $alias $getLink($link)
!endprocedure

!unquoted procedure ContainerQueue_Ext($alias, $label, $techn="", $descr="", $sprite="", $tags="", $link="")
!$sprite=$toElementArg($sprite, $tags, "ElementTagSprite", "external_container")
!$techn=$toElementArg($techn, $tags, "ElementTagTechn", "external_container")
queue "$getContainer($label, $techn, $descr, $sprite)$getProps()" $toStereos("external_container", $tags) as $alias $getLink($link)
!endprocedure

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

!unquoted procedure Container_Boundary($alias, $label, $tags="", $link="")
Boundary($alias, $label, "Container", $tags, $link)
!endprocedure