package entity

type MarketContext struct {
	Symbol      string                  `json:"symbol"`
	GeneratedAt int64                   `json:"generatedAt"`
	Snapshot    *Ticker24h              `json:"snapshot"`
	Klines      map[string][]Kline      `json:"klines"`
	Derivatives DerivativesBundle       `json:"derivatives"`
	Technical   TechnicalStructure      `json:"technical"`
	DataQuality DataQuality             `json:"dataQuality"`
}

type DerivativesBundle struct {
	Funding            FundingBundle      `json:"funding"`
	OpenInterest       OpenInterestBundle `json:"openInterest"`
	LongShortRatio     LongShortBundle    `json:"longShortRatio"`
	TakerBuySellVolume []TakerBuySellVolume `json:"takerBuySellVolume"`
	Signal             *DerivativesSignal `json:"signal,omitempty"`
}

// DerivativesSignal 把 funding / OI / LSR 的原始数字翻译成可读语义，
// 供上游策略引擎直接消费。任一子字段为空字符串表示数据不足以判定。
type DerivativesSignal struct {
	FundingBias string `json:"fundingBias,omitempty"` // crowded_long / crowded_short / neutral
	OISignal    string `json:"oiSignal,omitempty"`    // long_building / short_building / deleveraging / stable
	LSRRegime   string `json:"lsrRegime,omitempty"`   // retail_long_heavy / retail_short_heavy / balanced
}

type FundingBundle struct {
	Current *FundingRate  `json:"current"`
	History []FundingRate `json:"history"`
}

type OpenInterestBundle struct {
	Current *OpenInterest  `json:"current"`
	History []OpenInterest `json:"history"`
}

type LongShortBundle struct {
	Global            []LongShortRatio `json:"global"`
	TopTraderPosition []LongShortRatio `json:"topTraderPosition"`
}

type TechnicalStructure struct {
	Support       []TechnicalLevel              `json:"support"`
	Resistance    []TechnicalLevel              `json:"resistance"`
	RangeHigh     *string                       `json:"rangeHigh"`
	RangeLow      *string                       `json:"rangeLow"`
	LongShortLine *string                       `json:"longShortLine"`
	Intervals     map[string]IntervalTechnicals `json:"intervals"`
}

type IntervalTechnicals struct {
	Bollinger *Bollinger `json:"bollinger,omitempty"`
	Vegas     *Vegas     `json:"vegas,omitempty"`
}

// Bollinger 是 20 周期、2 倍标准差的布林带。
// BandwidthPct = (upper-lower)/mid * 100，Squeeze 取 tight/normal/expanded。
type Bollinger struct {
	Mid          string `json:"mid"`
	Upper        string `json:"upper"`
	Lower        string `json:"lower"`
	BandwidthPct string `json:"bandwidthPct"`
	Squeeze      string `json:"squeeze"`
}

// Vegas 通道：EMA12/144/169 三条线 + 趋势判定。
// Trend: bull / bear / range，按三条线的堆叠顺序判定。
type Vegas struct {
	EMA12  string `json:"ema12"`
	EMA144 string `json:"ema144"`
	EMA169 string `json:"ema169"`
	Trend  string `json:"trend"`
}

type TechnicalLevel struct {
	Price    string `json:"price"`
	Strength string `json:"strength,omitempty"`
	Source   string `json:"source,omitempty"`
}

type DataQuality struct {
	Source   string   `json:"source"`
	Warnings []string `json:"warnings"`
}