node-web-mvc
Version:
node spring mvc
128 lines (127 loc) • 5.31 kB
JavaScript
;
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const Locale_1 = __importDefault(require("../../locale/Locale"));
const path_1 = __importDefault(require("path"));
const fs_1 = __importDefault(require("fs"));
const dayMillseconds = (24 * 60 * 60 * 1000);
const cache = new Map();
class DateTimeTextProvider {
static register(locale, info) {
const key = locale.toString();
if (!cache.get(key)) {
cache.set(key, info);
}
}
static getAndRegister(locale) {
const key = locale.toString();
if (!cache.has(key)) {
const id = path_1.default.join(__dirname, 'locale', key + '.json');
if (fs_1.default.existsSync(id)) {
const content = fs_1.default.readFileSync(id).toString('utf-8');
this.register(key, JSON.parse(content));
}
}
return cache.get(key);
}
static getLocaleInfo(locale) {
return this.getAndRegister(locale) || this.getAndRegister(Locale_1.default.ENGLISH);
}
static getMonth(raw, locale, full) {
const info = this.getLocaleInfo(locale);
const data = full ? info.months : info.monthsShort;
return data[raw];
}
static findMonth(raw, locale, full) {
const info = this.getLocaleInfo(locale);
const data = full ? info.months : info.monthsShort;
const index = data.indexOf(raw);
return index > -1 ? index + 1 : null;
}
static getWeek(raw, locale, full) {
const info = this.getLocaleInfo(locale);
const data = full ? info.week : info.weekShort;
return data[raw];
}
static findWeek(raw, locale, full) {
const info = this.getLocaleInfo(locale);
const data = full ? info.week : info.weekShort;
const index = data.indexOf(raw);
return index > -1 ? index : null;
}
static getPAM(hour, locale) {
const index = hour < 12 ? 0 : 1;
const info = this.getLocaleInfo(locale);
const data = info.pam;
return data[index];
}
static findPAM(raw, locale) {
const info = this.getLocaleInfo(locale);
const data = info.pam;
const index = data.indexOf(raw);
return index > -1 ? index : null;
}
static startOfWeekOffset(days, dow, weekDef) {
// 累计天数 - 最后一周的多余天数 = 第一周（不满7天的天数)
const weekStart = this.floorMod(days - dow, 7);
// 如不满足一周最小天数，则需要将这些天数减除，所以取负数
let offset = -weekStart;
if (weekStart + 1 > weekDef.dminimalDaysInFirstWeeky) {
// 如果第一周不满7天，但是大于一周最小天数，则需要算入当年的一周
// 也就是返回需要补全的天数
offset = 7 - weekStart;
}
return offset;
}
static computeWeek(offset, days) {
return Math.floor((7 + offset + days - 1) / 7);
}
static dayOffYear(date) {
const yearStart = new Date(date.getFullYear() - 1, 11, 31);
return (date.getTime() - yearStart.getTime()) / dayMillseconds;
}
static getWeekOfMonth(date, locale) {
const week = new Date(date.getFullYear(), date.getMonth(), 1).getDay();
const dayOffset = 7 - week;
const days = date.getDate() - dayOffset;
const weeks = Math.ceil(days / 7);
return (weeks + 1).toString();
}
static getWeekOfYear(date, locale) {
const info = this.getLocaleInfo(locale);
const weekDef = info.weekDefine;
// 按照本地语言计算，当前日期是星期几: 当前星期x和开始星期y的绝对差即等于本地星期lx
const dow = this.floorMod(date.getDay() - weekDef.firstDayOfWeek, 7) + 1;
// 计算当前日期累计天数
const doy = this.dayOffYear(date);
// 计算开始周的差值 (开始日期如果不满足一周最小天数，则值为负数，否则为正数)
const offset = this.startOfWeekOffset(doy, dow, weekDef);
// 计算累计周数 (常数 +7 与 -1 保证最后天数满一周)
let week = this.computeWeek(offset, doy);
if (week == 0) {
// 如果值为0，则需要按照上一年最后一周算
const previous = new Date(date.getTime() - (doy * dayMillseconds));
return this.getWeekOfYear(previous, locale);
}
else if (week > 50) {
const yearEnd = new Date(Date.UTC(date.getFullYear(), 11, 31));
const days = this.dayOffYear(yearEnd);
// 如果日期接近年底，可能该日期会计入下一年的第一周，所以这里要进行兼容
const newYearWeek = this.computeWeek(offset, days + weekDef.dminimalDaysInFirstWeeky);
if (week >= newYearWeek) {
week = week - newYearWeek + 1;
}
}
return week;
}
static floorMod(x, y) {
let mod = x % y;
if ((mod ^ y) < 0 && mod != 0) {
mod += y;
}
return mod;
}
}
exports.default = DateTimeTextProvider;