pub(all) struct AreaChart {
  title : String
  x_labels : Array[String]
  series_list : Array[Series]
  width : Float
  height : Float
  config : ChartConfig
}

type AxisLayout

type BarChart

pub(all) struct ChartConfig {
  colors : Array[String]
  show_grid : Bool
  title_font_size : Int
  axis_font_size : Int
  legend_font_size : Int
}

pub(all) struct DonutChart {
  title : String
  slices : Array[Slice]
  width : Float
  height : Float
  config : ChartConfig
  hole_ratio : Float
}

pub(all) struct HorBarChart {
  title : String
  y_labels : Array[String]
  series_list : Array[Series]
  width : Float
  height : Float
  config : ChartConfig
}

type LineChart

pub(all) struct Palette {
  name : String
  colors : Array[String]
}

type PieChart

pub(all) struct RadarChart {
  title : String
  axis_labels : Array[String]
  series_list : Array[Series]
  width : Float
  height : Float
  config : ChartConfig
  levels : Int
}

pub(all) struct ScatterChart {
  title : String
  x_label : String
  y_label : String
  series_list : Array[Series]
  width : Float
  height : Float
  config : ChartConfig
  point_size : Float
}

pub(all) struct Series {
  name : String
  values : Array[Float]
}

pub(all) struct Slice {
  name : String
  value : Float
}

pub(all) struct StackedBarChart {
  title : String
  x_labels : Array[String]
  series_list : Array[Series]
  width : Float
  height : Float
  config : ChartConfig
}

pub(all) struct Theme {
  name : String
  background : String
  text_color : String
  grid_color : String
  axis_color : String
  colors : Array[String]
}

fn circle(cx : Float, cy : Float, r : Float, fill : String) -> String

fn compute_y_axis(data_min : Float, data_max : Float, _height : Float, _margin_top : Float, _margin_bottom : Float) -> AxisLayout

fn generate_demo_area() -> String

fn generate_demo_barchart() -> String

fn generate_demo_dashboard() -> String

fn generate_demo_linechart() -> String

fn generate_demo_piechart() -> String

fn generate_demo_radar() -> String

fn generate_demo_scatter() -> String

fn get_chart_color(config : ChartConfig, index : Int) -> String

fn get_color(index : Int) -> String

fn line(x1 : Float, y1 : Float, x2 : Float, y2 : Float, stroke : String, stroke_width : Float) -> String

fn max_value(values : Array[Float]) -> Float

fn mean(values : Array[Float]) -> Float

fn median(values : Array[Float]) -> Float

fn min_value(values : Array[Float]) -> Float

fn palette_bold() -> Palette

fn palette_forest() -> Palette

fn palette_ocean() -> Palette

fn palette_pastel() -> Palette

fn palette_sunset() -> Palette

fn palette_tableau10() -> Palette

fn palette_to_colors(p : Palette) -> Array[String]

fn parse_csv(content : String) -> (Array[String], Array[Array[String]])

fn parse_csv_to_series(content : String) -> (Array[String], Array[Series])

fn parse_float_or_zero(s : String) -> Float

fn path(d : String, fill : String, stroke : String) -> String

fn polygon(points : Array[(Float, Float)], fill : String, stroke : String, stroke_width : Float) -> String

fn polyline(points : Array[(Float, Float)], stroke : String, stroke_width : Float, fill : String) -> String

fn rect(x : Float, y : Float, w : Float, h : Float, fill : String) -> String

fn render_legend(names : Array[String], width : Float, y : Float, config : ChartConfig) -> String

fn sort_asc(values : Array[Float]) -> Array[Float]

fn std_dev(values : Array[Float]) -> Float

fn sum(values : Array[Float]) -> Float

fn svg_close() -> String

fn svg_open(width : Float, height : Float) -> String

fn text(x : Float, y : Float, content : String, font_size : Int, anchor : String) -> String

fn wrap_html(svg : String) -> String

fn wrap_html_multi(svgs : Array[String], titles : Array[String]) -> String

fn wrap_html_styled(svg : String, bg_color : String, title : String) -> String

fn x_to_svg(index : Float, count : Float, width : Float, margin_left : Float, margin_right : Float) -> Float

fn y_to_svg(value : Float, y_min : Float, y_max : Float, height : Float, margin_top : Float, margin_bottom : Float) -> Float