pub(all) struct CandlePoint {
  seq : Int
  open : Double
  high : Double
  low : Double
  close : Double
  volume : Double
} derive(Eq, ToJson, 
@moonbitlang/core/debug.Debug
Debug, 
@moonbitlang/core/json.FromJson
FromJson)

pub(all) struct ChartAnnotation {
  kind : ChartAnnotationKind
  label : String
  body : String
} derive(Eq, ToJson, 
@moonbitlang/core/debug.Debug
Debug, 
@moonbitlang/core/json.FromJson
FromJson)

pub(all) enum ChartAnnotationKind {
  SnapshotSummary
  StructureLevelSummary
  DecisionSummary
  RiskNote
} derive(Eq, ToJson, 
@moonbitlang/core/debug.Debug
Debug, 
@moonbitlang/core/json.FromJson
FromJson)

pub(all) struct ChartFrame {
  artifact_path : String
  source_id : String
  symbol : String
  timeframe : String
  width : Int
  height : Int
  candles : Array[CandlePoint]
  price_range : PriceRange?
  annotations : Array[ChartAnnotation]
} derive(Eq, ToJson, 
@moonbitlang/core/debug.Debug
Debug, 
@moonbitlang/core/json.FromJson
FromJson)

pub(all) struct PriceRange {
  low : Double
  high : Double
} derive(Eq, ToJson, 
@moonbitlang/core/debug.Debug
Debug, 
@moonbitlang/core/json.FromJson
FromJson)

fn candle_point(bar : 
@vectie/moonfish/domain.KlineBar
KlineBar) -> CandlePoint

fn chart_annotation(kind : ChartAnnotationKind, label : String, body : String) -> ChartAnnotation

fn price_range(low : Double, high : Double) -> PriceRange

fn render_chart_frame(snapshot : 
@vectie/moonfish/domain.KlineSnapshot
KlineSnapshot, decision? : 
@vectie/moonfish/domain.Stage2Decision
Stage2Decision, structure_levels? : 
@vectie/moonfish/domain.StructureLevelFrame
StructureLevelFrame, width? : Int, height? : Int) -> ChartFrame