Macbook
132 lines
3.6 KiB
TypeScript
132 lines
3.6 KiB
TypeScript
/** 상승추세 검색그룹 — 5개 평가항목 배점 (합계 100 고정) */
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export type BullishWeightKey =
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| 'weightMaAlignment'
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| 'weightMaSlope'
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| 'weightAdxTrend'
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| 'weightMacdMomentum'
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| 'weightPricePosition';
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export interface BullishWeightItem {
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key: BullishWeightKey;
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label: string;
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desc: string;
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}
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export const BULLISH_WEIGHT_ITEMS: BullishWeightItem[] = [
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{
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key: 'weightMaAlignment',
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label: '이평선 정배열',
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desc: 'EMA(20) > EMA(60) > EMA(120)',
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},
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{
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key: 'weightMaSlope',
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label: '이평선 기울기',
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desc: 'EMA(20) 현재 > 5봉 전',
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},
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{
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key: 'weightAdxTrend',
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label: '추세강도 (ADX)',
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desc: '+DI > -DI · ADX ≥ 20',
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},
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{
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key: 'weightMacdMomentum',
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label: '모멘텀 (MACD)',
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desc: 'MACD > Signal · MACD > 0',
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},
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{
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key: 'weightPricePosition',
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label: '가격위치',
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desc: '종가 > EMA(20)',
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},
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];
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export const DEFAULT_BULLISH_WEIGHTS: Record<BullishWeightKey, number> = {
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weightMaAlignment: 30,
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weightMaSlope: 15,
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weightAdxTrend: 25,
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weightMacdMomentum: 15,
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weightPricePosition: 15,
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};
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export function bullishWeightsFromRequest(
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req: Pick<import('./backendApi').TrendSearchRequest, BullishWeightKey>,
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): number[] {
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return BULLISH_WEIGHT_ITEMS.map(item => req[item.key] ?? DEFAULT_BULLISH_WEIGHTS[item.key]);
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}
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export const WEIGHT_STEP = 5;
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export function snapToWeightStep(value: number): number {
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return Math.max(0, Math.min(100, Math.round(value / WEIGHT_STEP) * WEIGHT_STEP));
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}
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/** range 슬라이더 트랙 클릭 위치 → 5점 단위 배점 */
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export function weightFromSliderPointer(clientX: number, rect: DOMRect): number {
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const ratio = Math.max(0, Math.min(1, (clientX - rect.left) / rect.width));
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return snapToWeightStep(ratio * 100);
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}
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export function sumWeights(weights: number[]): number {
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return weights.reduce((a, b) => a + b, 0);
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}
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/**
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* 한 항목 배점 변경 시 나머지 항목에 차이를 균등 분배해 합계 100 유지.
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*/
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export function adjustBullishWeight(
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current: Record<BullishWeightKey, number>,
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changedKey: BullishWeightKey,
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newValue: number,
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): Record<BullishWeightKey, number> {
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const keys = BULLISH_WEIGHT_ITEMS.map(i => i.key);
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const idx = keys.indexOf(changedKey);
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if (idx < 0) return current;
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const clamped = snapToWeightStep(newValue);
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const oldValue = snapToWeightStep(current[changedKey]);
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if (clamped === oldValue) return current;
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const result: Record<BullishWeightKey, number> = { ...current };
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for (const k of keys) result[k] = snapToWeightStep(result[k]);
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result[changedKey] = clamped;
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const delta = clamped - oldValue;
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const otherKeys = keys.filter(k => k !== changedKey);
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const distribute = (amount: number, mode: 'take' | 'give') => {
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let remaining = amount;
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let idx = 0;
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let guard = 0;
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while (remaining > 0 && guard < 200) {
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const k = otherKeys[idx % otherKeys.length];
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if (mode === 'take') {
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const take = Math.min(WEIGHT_STEP, remaining, result[k]);
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if (take > 0) {
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result[k] -= take;
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remaining -= take;
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}
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} else {
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const give = Math.min(WEIGHT_STEP, remaining, 100 - result[k]);
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if (give > 0) {
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result[k] += give;
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remaining -= give;
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}
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}
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idx += 1;
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guard += 1;
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}
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};
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if (delta > 0) distribute(delta, 'take');
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else if (delta < 0) distribute(-delta, 'give');
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const total = keys.reduce((s, k) => s + result[k], 0);
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if (total !== 100) {
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const fixKey = otherKeys[0] ?? changedKey;
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result[fixKey] = snapToWeightStep(Math.max(0, Math.min(100, result[fixKey] + (100 - total))));
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}
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return result;
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}
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