!include https://raw.githubusercontent.com/adrianvlupu/C4-PlantUML/latest/C4.puml
' uncomment the following line and comment the first to use locally
' !include C4.puml

' Scope: A single software system.
' Primary elements: The software system in scope.
' Supporting elements: People and software systems directly connected to the software system in scope.
' Intended audience: Everybody, both technical and non-technical people, inside and outside of the software development team.

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

!global $PERSON_BG_COLOR = "#08427B"
!global $EXTERNAL_PERSON_BG_COLOR = "#686868"
!global $SYSTEM_BG_COLOR = "#1168BD"
!global $EXTERNAL_SYSTEM_BG_COLOR = "#999999"

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

skinparam rectangle<<person>> {
StereotypeFontColor $ELEMENT_FONT_COLOR
FontColor $ELEMENT_FONT_COLOR
BackgroundColor $PERSON_BG_COLOR
BorderColor #073B6F
}

skinparam rectangle<<external_person>> {
StereotypeFontColor $ELEMENT_FONT_COLOR
FontColor $ELEMENT_FONT_COLOR
BackgroundColor $EXTERNAL_PERSON_BG_COLOR
BorderColor #8A8A8A
}

skinparam rectangle<<system>> {
StereotypeFontColor $ELEMENT_FONT_COLOR
FontColor $ELEMENT_FONT_COLOR
BackgroundColor $SYSTEM_BG_COLOR
BorderColor #3C7FC0
}

skinparam rectangle<<external_system>> {
StereotypeFontColor $ELEMENT_FONT_COLOR
FontColor $ELEMENT_FONT_COLOR
BackgroundColor $EXTERNAL_SYSTEM_BG_COLOR
BorderColor #8A8A8A
}

skinparam database<<system>> {
StereotypeFontColor $ELEMENT_FONT_COLOR
FontColor $ELEMENT_FONT_COLOR
BackgroundColor $SYSTEM_BG_COLOR
BorderColor #3C7FC0
}

skinparam database<<external_system>> {
StereotypeFontColor $ELEMENT_FONT_COLOR
FontColor $ELEMENT_FONT_COLOR
BackgroundColor $EXTERNAL_SYSTEM_BG_COLOR
BorderColor #8A8A8A
}

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

!function LAYOUT_WITH_LEGEND()
hide stereotype
legend right
|=              |= Type |
|<$PERSON_BG_COLOR>      | person |
|<$EXTERNAL_PERSON_BG_COLOR>      | external person |
|<$SYSTEM_BG_COLOR>   | system |
|<$EXTERNAL_SYSTEM_BG_COLOR>      | external system |
endlegend
!endfunction

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

!unquoted function Person($alias, $label)
rectangle "==$label" <<person>> as $alias
!endfunction
!unquoted function Person($alias, $label, $descr)
rectangle "==$label\n\n $descr" <<person>> as $alias
!endfunction

!unquoted function Person_Ext($alias, $label)
rectangle "==$label" <<external_person>> as $alias
!endfunction
!unquoted function Person_Ext($alias, $label, $descr)
rectangle "==$label\n\n $descr" <<external_person>> as $alias
!endfunction

!unquoted function System($alias, $label)
rectangle "==$label" <<system>> as $alias
!endfunction
!unquoted function System($alias, $label, $descr)
rectangle "==$label\n\n $descr" <<system>> as $alias
!endfunction

!unquoted function System_Ext($alias, $label)
rectangle "==$label" <<external_system>> as $alias
!endfunction
!unquoted function System_Ext($alias, $label, $descr)
rectangle "==$label\n\n $descr" <<external_system>> as $alias
!endfunction

!unquoted function SystemDb($alias, $label)
database "==$label" <<system>> as $alias
!endfunction
!unquoted function SystemDb($alias, $label, $descr)
database "==$label\n\n $descr" <<system>> as $alias
!endfunction

!unquoted function SystemDb_Ext($alias, $label)
database "==$label" <<external_system>> as $alias
!endfunction
!unquoted function SystemDb_ext($alias, $label, $descr)
database "==$label\n\n $descr" <<external_system>> as $alias
!endfunction

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

!unquoted function Enterprise_Boundary($alias, $label)
!return Boundary($alias, $label, "Enterprise")
!endfunction
!unquoted function System_Boundary($alias, $label)
!return Boundary($alias, $label, "System")
!endfunction