@thuantan2060/technicalindicators/lib/candlestick/EveningDojiStar.js

Techincal Indicators written in javascript

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = exports.DEFAULT_EVENING_DOJI_STAR_CONFIG = void 0;
exports.eveningdojistar = eveningdojistar;
var _Doji = require("./Doji");
var _CandlestickFinder = _interopRequireWildcard(require("./CandlestickFinder"));
function _interopRequireWildcard(e, t) { if ("function" == typeof WeakMap) var r = new WeakMap(), n = new WeakMap(); return (_interopRequireWildcard = function (e, t) { if (!t && e && e.__esModule) return e; var o, i, f = { __proto__: null, default: e }; if (null === e || "object" != typeof e && "function" != typeof e) return f; if (o = t ? n : r) { if (o.has(e)) return o.get(e); o.set(e, f); } for (const t in e) "default" !== t && {}.hasOwnProperty.call(e, t) && ((i = (o = Object.defineProperty) && Object.getOwnPropertyDescriptor(e, t)) && (i.get || i.set) ? o(f, t, i) : f[t] = e[t]); return f; })(e, t); }
/**
 * Configuration interface for EveningDojiStar pattern.
 * Only requires scale parameter since this pattern uses direct price comparisons.
 */

/**
 * Default configuration for EveningDojiStar pattern.
 */
const DEFAULT_EVENING_DOJI_STAR_CONFIG = exports.DEFAULT_EVENING_DOJI_STAR_CONFIG = {
  ..._CandlestickFinder.DEFAULT_CANDLESTICK_CONFIG,
  ..._Doji.DEFAULT_DOJI_CONFIG
};
class EveningDojiStar extends _CandlestickFinder.default {
  config;
  constructor(config) {
    const finalConfig = {
      ...DEFAULT_EVENING_DOJI_STAR_CONFIG,
      ...config
    };
    super(finalConfig);
    this.name = 'EveningDojiStar';
    this.requiredCount = 3;
    this.config = finalConfig;
  }
  logic(data) {
    // For ascending order data: [0]=oldest (day 1), [1]=middle (day 2), [2]=most recent (day 3)
    let firstdaysOpen = data.open[0]; // Day 1 (oldest) - should be bullish candle
    let firstdaysClose = data.close[0];
    let firstdaysHigh = data.high[0];
    let firstdaysLow = data.low[0];
    let seconddaysOpen = data.open[1]; // Day 2 (middle) - should be doji star
    let seconddaysClose = data.close[1];
    let seconddaysHigh = data.high[1];
    let seconddaysLow = data.low[1];
    let thirddaysOpen = data.open[2]; // Day 3 (most recent) - should be bearish candle
    let thirddaysClose = data.close[2];
    let thirddaysHigh = data.high[2];
    let thirddaysLow = data.low[2];

    // Validate OHLC data integrity for all three days
    if (!this.validateOHLC(firstdaysOpen, firstdaysHigh, firstdaysLow, firstdaysClose) || !this.validateOHLC(seconddaysOpen, seconddaysHigh, seconddaysLow, seconddaysClose) || !this.validateOHLC(thirddaysOpen, thirddaysHigh, thirddaysLow, thirddaysClose)) {
      return false;
    }
    let firstdaysMidpoint = (firstdaysOpen + firstdaysClose) / 2;
    let isFirstBullish = firstdaysClose > firstdaysOpen;

    // Use the doji function with proper config object
    let dojiExists = (0, _Doji.doji)({
      "open": [seconddaysOpen],
      "close": [seconddaysClose],
      "high": [seconddaysHigh],
      "low": [seconddaysLow]
    }, this.config);
    let isThirdBearish = thirddaysOpen > thirddaysClose;
    let gapExists = seconddaysHigh > firstdaysHigh && seconddaysLow > firstdaysHigh && thirddaysOpen < seconddaysLow && seconddaysClose > thirddaysOpen;
    let doesCloseBelowFirstMidpoint = thirddaysClose < firstdaysMidpoint;
    return isFirstBullish && dojiExists && gapExists && isThirdBearish && doesCloseBelowFirstMidpoint;
  }
}
exports.default = EveningDojiStar;
function eveningdojistar(data, config = DEFAULT_EVENING_DOJI_STAR_CONFIG) {
  return new EveningDojiStar(config).hasPattern(data);
}
//# sourceMappingURL=EveningDojiStar.js.map