adaptive-expressions
Version:
Common Expression Language
99 lines • 4.26 kB
JavaScript
;
/**
* @module adaptive-expressions
*/
/**
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License.
*/
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.GetPreviousViableDate = void 0;
const expressionEvaluator_1 = require("../expressionEvaluator");
const returnType_1 = require("../returnType");
const expressionType_1 = require("../expressionType");
const functionUtils_1 = require("../functionUtils");
const functionUtils_internal_1 = require("../functionUtils.internal");
const timeZoneConverter_1 = require("../timeZoneConverter");
const dayjs_1 = __importDefault(require("dayjs"));
const timezone_1 = __importDefault(require("dayjs/plugin/timezone"));
dayjs_1.default.extend(timezone_1.default);
const utc_1 = __importDefault(require("dayjs/plugin/utc"));
dayjs_1.default.extend(utc_1.default);
const recognizers_text_data_types_timex_expression_1 = require("@microsoft/recognizers-text-data-types-timex-expression");
/**
* Return the previous viable date of a timex expression based on the current date and user's timezone.
*/
class GetPreviousViableDate extends expressionEvaluator_1.ExpressionEvaluator {
/**
* Initializes a new instance of the [GetPreviousViableDate](xref:adaptive-expressions.GetPreviousViableDate) class.
*/
constructor() {
super(expressionType_1.ExpressionType.GetPreviousViableDate, GetPreviousViableDate.evaluator, returnType_1.ReturnType.String, functionUtils_1.FunctionUtils.validateUnaryOrBinaryString);
}
/**
* @private
*/
static evaluator(expr, state, options) {
let parsed;
const currentTime = (0, dayjs_1.default)(new Date().toISOString());
let validYear = 0;
let validMonth = 0;
let validDay = 0;
let convertedDateTime;
const { args, error: childrenError } = functionUtils_1.FunctionUtils.evaluateChildren(expr, state, options);
let error = childrenError;
if (!error) {
({ timexProperty: parsed, error: error } = functionUtils_internal_1.InternalFunctionUtils.parseTimexProperty(args[0]));
}
if (parsed && !error) {
if (parsed.year || !parsed.month || !parsed.dayOfMonth) {
error = `${args[0]} must be a timex string which only contains month and day-of-month, for example: 'XXXX-10-31'.`;
}
}
if (!error) {
if (args.length === 2 && typeof args[1] === 'string') {
const timeZone = timeZoneConverter_1.TimeZoneConverter.windowsToIana(args[1]);
if (!timeZoneConverter_1.TimeZoneConverter.verifyTimeZoneStr(timeZone)) {
error = `${args[1]} is not a valid timezone`;
}
if (!error) {
convertedDateTime = currentTime.utc().tz(timeZone);
}
}
else {
convertedDateTime = currentTime.utc();
}
}
if (!error) {
const year = convertedDateTime.year();
const month = convertedDateTime.month() + 1;
const dayOfMonth = convertedDateTime.date();
if (parsed.month < month || (parsed.month === month && parsed.dayOfMonth < dayOfMonth)) {
validYear = year;
}
else {
validYear = year - 1;
}
validMonth = parsed.month;
validDay = parsed.dayOfMonth;
if (validMonth === 2 && validDay === 29) {
while (!GetPreviousViableDate.leapYear(validYear)) {
validYear -= 1;
}
}
}
const value = recognizers_text_data_types_timex_expression_1.TimexProperty.fromDate(new Date(validYear, validMonth - 1, validDay)).timex;
return { value, error };
}
/**
* @private
*/
static leapYear(year) {
return (year % 4 === 0 && year % 100 != 0) || year % 400 === 0;
}
}
exports.GetPreviousViableDate = GetPreviousViableDate;
//# sourceMappingURL=getPreviousViableDate.js.map