pub enum ActorKind {
  Participant
  Actor
}

type Canvas

type Cell

type Defaults

pub struct DiagramColors {
  bg : String
  fg : String
  line : String
  accent : String
  muted : String
  surface : String
  border : String
}

pub enum DiagramKind {
  Flowchart
  State
  Class
  Er
}

pub enum Direction {
  TD
  LR
  BT
  RL
}

pub struct GraphDiagram {
  kind : DiagramKind
  direction : Direction
  nodes : Array[GraphNode]
  edges : Array[GraphEdge]
}

pub struct GraphEdge {
  from : String
  to : String
  label : String?
}

pub struct GraphNode {
  id : String
  label : String
  shape : NodeShape
  sections : Array[Array[String]]
}

type LayoutBox

pub enum MermaidDiagram {
  Graph(GraphDiagram)
  Sequence(SequenceDiagram)
}

pub enum NodeShape {
  Rect
  Rounded
  Circle
  StateStart
  StateEnd
}

pub(all) struct Options {
  use_ascii : Bool
  padding_x : Int
  padding_y : Int
  box_border_padding : Int
  max_width : Int
}

type Point

type PositionedActor

type PositionedEdge

type PositionedGraph

type PositionedMessage

type PositionedNode

type PositionedSequence

pub struct SequenceActor {
  id : String
  label : String
  kind : ActorKind
}

pub struct SequenceDiagram {
  actors : Array[SequenceActor]
  messages : Array[SequenceMessage]
}

pub struct SequenceMessage {
  from : String
  to : String
  text : String
  dashed : Bool
}

pub struct SvgOptions {
  bg : String?
  fg : String?
  line : String?
  accent : String?
  muted : String?
  surface : String?
  border : String?
  font : String?
  transparent : Bool?
}

fn experimental_render_to_svg(text : String, options? : SvgOptions) -> String

fn parse(text : String) -> MermaidDiagram

fn render_to_string(text : String, options? : Options) -> String

fn svg_options_from_theme(name : String, font? : String, transparent? : Bool) -> SvgOptions?

let themes : Map[String, DiagramColors]