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Add Vietnamese calendar
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source: https://www.informatik.uni-leipzig.de/~duc/amlich/JavaScript/amlich-ntt.js
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@trmdi
trmdi committed Nov 7, 2024
1 parent 248535e commit f4f4683
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1 change: 1 addition & 0 deletions src/index.html
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Original file line number Diff line number Diff line change
Expand Up @@ -307,6 +307,7 @@ <h1 class="digital" data-hide="clock">
<span class="clock-date-aa"></span><span class="clock-date-aa-separator"></span
><span class="clock-date-bb"></span><span class="clock-date-bb-separator"></span
><span class="clock-date-cc"></span>
<span class="clock-date-secondary"></span>
</p>
</div>
</div>
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9 changes: 9 additions & 0 deletions src/scripts/features/clock.ts
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Expand Up @@ -6,6 +6,7 @@ import { SYNC_DEFAULT } from '../defaults'
import onSettingsLoad from '../utils/onsettingsload'
import errorMessage from '../utils/errormessage'
import storage from '../storage'
import getCustomizedLunarDate from '../utils/vietnamese-calendar'

type ClockUpdate = {
ampm?: boolean
Expand Down Expand Up @@ -323,6 +324,7 @@ function clockDate(wrapper: HTMLElement, date: Date, dateformat: DateFormat) {
const aa = wrapper.querySelector('.clock-date-aa') as HTMLElement
const bb = wrapper.querySelector('.clock-date-bb') as HTMLElement
const cc = wrapper.querySelector('.clock-date-cc') as HTMLElement
const secondary = wrapper.querySelector('.clock-date-secondary') as HTMLElement

const lang = getLang().replaceAll('_', '-')

Expand Down Expand Up @@ -357,6 +359,13 @@ function clockDate(wrapper: HTMLElement, date: Date, dateformat: DateFormat) {
bb.textContent = day
cc.textContent = weekday
}

if (lang === 'vi') {
let vn_calendar = getCustomizedLunarDate(date)
secondary.textContent = `Âm lịch: ${vn_calendar.day} tháng ${vn_calendar.month} năm ${vn_calendar.yearCanChi}`
} else {
secondary.textContent = ""
}
}

// Greetings
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325 changes: 325 additions & 0 deletions src/scripts/utils/vietnamese-calendar.ts
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@@ -0,0 +1,325 @@
/**
* Copyright 2014 Ho Ngoc Duc. All Rights Reserved.<p>
* Permission to use, copy, modify, and redistribute this software and its
* documentation for personal, non-commercial use is hereby granted provided that
* this copyright notice appears in all copies.
*
* source: https://www.informatik.uni-leipzig.de/~duc/amlich/JavaScript/amlich-ntt.js
*/

const ABOUT = "Âm lịch Việt Nam - Version 1.0\n© 2004 Hồ Ngọc Đức";

const TK13: number[] = [
0x226da2, 0x4695d0, 0x3349dc, 0x5849b0, 0x42a4b0, 0x2aaab8, 0x506a50, 0x3ab540, 0x24bb44, 0x48ab6,
0x3495b0, 0x205372, 0x464970, 0x2e64f9, 0x5454b0, 0x3e6a50, 0x296c57, 0x4c5ac0, 0x36ab60, 0x2386e,
0x4892e0, 0x30c97c, 0x56c960, 0x40d4a0, 0x2adaa8, 0x4eb550, 0x3a56a0, 0x24adb5, 0x4c25d0, 0x3492e,
0x1ed2b2, 0x44a950, 0x2ed4d9, 0x52b2a0, 0x3cb550, 0x285757, 0x4e4da0, 0x36a5b0, 0x225574, 0x4852b,
0x33a93c, 0x566930, 0x406aa0, 0x2aada8, 0x50ab50, 0x3a4b60, 0x24aae4, 0x4aa570, 0x365270, 0x1f526,
0x42e530, 0x2e6cba, 0x5456a0, 0x3c5b50, 0x294ad6, 0x4e4ae0, 0x38a4e0, 0x20d4d4, 0x46d260, 0x30d53,
0x56b520, 0x3eb6a0, 0x2b56a9, 0x505570, 0x3c49d0, 0x25a1b5, 0x4aa4b0, 0x34aa50, 0x1eea51, 0x42b52,
0x2cb5aa, 0x52ab60, 0x3e95b0, 0x284b76, 0x4e4970, 0x3864b0, 0x22b4b3, 0x466a50, 0x306b3b, 0x565ac,
0x40ab60, 0x2b2ad8, 0x5049e0, 0x3aa4d0, 0x24d4b5, 0x48b250, 0x32b520, 0x1cf522, 0x42b5a0, 0x2c95e,
0x5295b0, 0x3e49b0, 0x28a576, 0x4ca4b0, 0x36aa50, 0x20ba54, 0x466d40, 0x2ead6c, 0x54ab60, 0x409370
];

const TK14: number[] = [
0x2d49b8, 0x504970, 0x3a64b0, 0x246ca5, 0x48da50, 0x325aa0, 0x1cd6c1, 0x42a6e0, 0x2e92fb, 0x5292e,
0x3cc960, 0x26d557, 0x4cd4a0, 0x34d550, 0x215553, 0x4656a0, 0x30a6d0, 0x1aa5d1, 0x4092b0, 0x2aa5b,
0x50a950, 0x38b2a0, 0x23b2a5, 0x48ad50, 0x344da0, 0x1ccba1, 0x42a570, 0x2e52f9, 0x545270, 0x3c693,
0x266b37, 0x4c6aa0, 0x36ab50, 0x205753, 0x464b60, 0x30a67c, 0x56a2e0, 0x3ed160, 0x28e968, 0x4ed4a,
0x38daa0, 0x225ea5, 0x4856d0, 0x344ae0, 0x1f85d2, 0x42a2d0, 0x2cd17a, 0x52aa50, 0x3cb520, 0x24d74,
0x4aada0, 0x3655d0, 0x2253b3, 0x4645b0, 0x30a2b0, 0x1ba2b1, 0x40aa50, 0x28b559, 0x4e6b20, 0x38ad6,
0x255365, 0x489370, 0x344570, 0x1ea573, 0x4452b0, 0x2c6a6a, 0x50d950, 0x3c5aa0, 0x27aac7, 0x4aa6e,
0x3652e0, 0x20cae3, 0x46a560, 0x2ed2bb, 0x54d2a0, 0x3ed550, 0x2a5ad9, 0x4e56a0, 0x38a6d0, 0x2455d,
0x4a52b0, 0x32a8d0, 0x1ce552, 0x42b2a0, 0x2cb56a, 0x50ad50, 0x3c4da0, 0x26a7a6, 0x4ca570, 0x3651b,
0x21a174, 0x466530, 0x316a9c, 0x545aa0, 0x3eab50, 0x2a2bd9, 0x502b60, 0x38a370, 0x2452e5, 0x48d160
];

const TK15: number[] = [
0x32e4b0, 0x1c7523, 0x40daa0, 0x2d5b4b, 0x5256d0, 0x3c2ae0, 0x26a3d7, 0x4ca2d0, 0x36d150, 0x1ed95,
0x44b520, 0x2eb69c, 0x54ada0, 0x3e55d0, 0x2b25b9, 0x5045b0, 0x3aa2b0, 0x22aab5, 0x48a950, 0x32b52,
0x1ceaa1, 0x40ab60, 0x2c55bc, 0x524b70, 0x3e4570, 0x265377, 0x4c52b0, 0x366950, 0x216954, 0x445aa,
0x2eab5c, 0x54a6e0, 0x404ae0, 0x28a5e8, 0x4ea560, 0x38d2a0, 0x22eaa6, 0x46d550, 0x3256a0, 0x1d95a,
0x4295d0, 0x2c4afb, 0x5249b0, 0x3ca4d0, 0x26d2d7, 0x4ab2a0, 0x34b550, 0x205d54, 0x462da0, 0x2e95b,
0x1b1571, 0x4049b0, 0x2aa4f9, 0x4e64b0, 0x386a90, 0x22aea6, 0x486b50, 0x322b60, 0x1caae2, 0x42937,
0x2f496b, 0x50c960, 0x3ae4d0, 0x266b27, 0x4adaa0, 0x345ad0, 0x2036d3, 0x4626e0, 0x3092e0, 0x18d2d,
0x3ec950, 0x28d4d9, 0x4eb4a0, 0x36b690, 0x2355a6, 0x4855b0, 0x3425d0, 0x1ca5b2, 0x4292b0, 0x2ca97,
0x526950, 0x3a74a0, 0x24b5a8, 0x4aab60, 0x3653b0, 0x202b74, 0x462570, 0x3052b0, 0x1ad2b1, 0x3e695,
0x286ad9, 0x4e5aa0, 0x38ab50, 0x224ed5, 0x484ae0, 0x32a370, 0x1f44e3, 0x40d2a0, 0x2bd94b, 0x50b550
];

const TK16: number[] = [
0x3c56a0, 0x2497a7, 0x4a95d0, 0x364ae0, 0x20a9b4, 0x44a4d0, 0x2ed250, 0x19aaa1, 0x3eb550, 0x2856d,
0x4e2da0, 0x3895b0, 0x244b75, 0x484970, 0x32a4b0, 0x1cb4b4, 0x426a90, 0x2aad5c, 0x505b50, 0x3c2b6,
0x2695e8, 0x4a92f0, 0x364970, 0x206964, 0x44d4a0, 0x2cea5c, 0x52d690, 0x3e56d0, 0x2b2b5a, 0x4e26e,
0x3892e0, 0x22cad6, 0x48c950, 0x30d4a0, 0x1af4a2, 0x40b590, 0x2c56dc, 0x5055b0, 0x3c25d0, 0x2693b,
0x4c92b0, 0x34a950, 0x1fb155, 0x446ca0, 0x2ead50, 0x192b61, 0x3e4bb0, 0x2a25f9, 0x502570, 0x3852b,
0x22aaa6, 0x46e950, 0x326aa0, 0x1abaa3, 0x40ab50, 0x2c4b7b, 0x524ae0, 0x3aa570, 0x2652d7, 0x4ad26,
0x34d950, 0x1e5d55, 0x4456a0, 0x2e96d0, 0x1a55d2, 0x3e4ae0, 0x28a4fa, 0x4ea4d0, 0x38d250, 0x20d69,
0x46b550, 0x3235a0, 0x1caba2, 0x4095b0, 0x2d49bc, 0x524970, 0x3ca4b0, 0x24b2b8, 0x4a6a50, 0x346d4,
0x1fab54, 0x442ba0, 0x2e9370, 0x2e52f2, 0x544970, 0x3c64e9, 0x60d4a0, 0x4aea50, 0x373aa6, 0x5a56d,
0x462b60, 0x3185e3, 0x5692e0, 0x3ec97b, 0x64a950, 0x4ed4a0, 0x38daa8, 0x5cb550, 0x4856b0, 0x342da4
];

const TK17: number[] = [
0x58a5d0, 0x4292d0, 0x2cd2b2, 0x52a950, 0x3cb4d9, 0x606aa0, 0x4aad50, 0x365756, 0x5c4ba0, 0x44a5b,
0x314573, 0x5652b0, 0x41a94b, 0x62e950, 0x4e6aa0, 0x38ada8, 0x5e9b50, 0x484b60, 0x32aae4, 0x58a4f,
0x445260, 0x2bd262, 0x50d550, 0x3d5a9a, 0x6256a0, 0x4a96d0, 0x3749d6, 0x5c49e0, 0x46a4d0, 0x2ed4d,
0x54d250, 0x3ed53b, 0x64b540, 0x4cb5a0, 0x3995a8, 0x5e95b0, 0x4a49b0, 0x32a974, 0x58a4b0, 0x42aa5,
0x2cea51, 0x506d40, 0x3aadbb, 0x622b60, 0x4c9370, 0x364af6, 0x5c4970, 0x4664b0, 0x3074a3, 0x52da5,
0x3e6b5b, 0x6456d0, 0x502ae0, 0x3893e7, 0x5e92e0, 0x48c960, 0x33d155, 0x56d4a0, 0x40da50, 0x2d355,
0x5256a0, 0x3aa6fa, 0x6225d0, 0x4c92d0, 0x36aab6, 0x5aa950, 0x44b4a0, 0x2ebaa4, 0x54ad50, 0x3f55a,
0x644ba0, 0x4ea5b0, 0x3b5278, 0x5e52b0, 0x486930, 0x327555, 0x586aa0, 0x40ab50, 0x2c5b52, 0x524b6,
0x3da56a, 0x60a4f0, 0x4c5260, 0x34ea66, 0x5ad530, 0x445aa0, 0x2eb6a3, 0x5496d0, 0x404ae0, 0x28c9d,
0x4ea4d0, 0x38d2d8, 0x5eb250, 0x46b520, 0x31d545, 0x56ada0, 0x4295d0, 0x2c55b2, 0x5249b0, 0x3ca4f9
];

const TK18: number[] = [
0x62a4b0, 0x4caa50, 0x37b457, 0x5c6b40, 0x46ada0, 0x305b64, 0x569370, 0x424970, 0x2cc971, 0x5064b,
0x3a6aa8, 0x5eda50, 0x4a5aa0, 0x32aec5, 0x58a6e0, 0x4492f0, 0x3052e2, 0x52c960, 0x3dd49a, 0x62d4a,
0x4cd550, 0x365b57, 0x5c56a0, 0x46a6d0, 0x3295d4, 0x5692d0, 0x40a95c, 0x2ad4b0, 0x50b2a0, 0x38b5a,
0x5ead50, 0x4a4da0, 0x34aba4, 0x58a570, 0x4452b0, 0x2eb273, 0x546930, 0x3c6abb, 0x626aa0, 0x4cab5,
0x394b57, 0x5c4b60, 0x46a570, 0x3252e4, 0x56d160, 0x3ee93c, 0x64d520, 0x4edaa0, 0x3b5b29, 0x5e56d,
0x4a4ae0, 0x34a5d5, 0x5aa2d0, 0x42d150, 0x2cea52, 0x52b520, 0x3cd6ab, 0x60ada0, 0x4c55d0, 0x384bb,
0x5e45b0, 0x46a2b0, 0x30d2b4, 0x56aa50, 0x41b52c, 0x646b20, 0x4ead60, 0x3a55e9, 0x609370, 0x4a457,
0x34a575, 0x5a52b0, 0x446a50, 0x2d5a52, 0x525aa0, 0x3dab4b, 0x62a6e0, 0x4c92e0, 0x36c6e6, 0x5ca56,
0x46d4a0, 0x2eeaa5, 0x54d550, 0x4056a0, 0x2ad5a1, 0x4ea5d0, 0x3b52d9, 0x6052b0, 0x4aa950, 0x32d55,
0x58b2a0, 0x42b550, 0x2e6d52, 0x524da0, 0x3da5cb, 0x62a570, 0x4e51b0, 0x36a977, 0x5c6530, 0x466a90
];

const TK19: number[] = [
0x30baa3, 0x56ab50, 0x422ba0, 0x2cab61, 0x52a370, 0x3c51e8, 0x60d160, 0x4ae4b0, 0x376926, 0x58daa0,
0x445b50, 0x3116d2, 0x562ae0, 0x3ea2e0, 0x28e2d2, 0x4ec950, 0x38d556, 0x5cb520, 0x46b690, 0x325da4,
0x5855d0, 0x4225d0, 0x2ca5b3, 0x52a2b0, 0x3da8b7, 0x60a950, 0x4ab4a0, 0x35b2a5, 0x5aad50, 0x4455b0,
0x302b74, 0x562570, 0x4052f9, 0x6452b0, 0x4e6950, 0x386d56, 0x5e5aa0, 0x46ab50, 0x3256d4, 0x584ae0,
0x42a570, 0x2d4553, 0x50d2a0, 0x3be8a7, 0x60d550, 0x4a5aa0, 0x34ada5, 0x5a95d0, 0x464ae0, 0x2eaab4,
0x54a4d0, 0x3ed2b8, 0x64b290, 0x4cb550, 0x385757, 0x5e2da0, 0x4895d0, 0x324d75, 0x5849b0, 0x42a4b0,
0x2da4b3, 0x506a90, 0x3aad98, 0x606b50, 0x4c2b60, 0x359365, 0x5a9370, 0x464970, 0x306964, 0x52e4a0,
0x3cea6a, 0x62da90, 0x4e5ad0, 0x392ad6, 0x5e2ae0, 0x4892e0, 0x32cad5, 0x56c950, 0x40d4a0, 0x2bd4a3,
0x50b690, 0x3a57a7, 0x6055b0, 0x4c25d0, 0x3695b5, 0x5a92b0, 0x44a950, 0x2ed954, 0x54b4a0, 0x3cb550,
0x286b52, 0x4e55b0, 0x3a2776, 0x5e2570, 0x4852b0, 0x32aaa5, 0x56e950, 0x406aa0, 0x2abaa3, 0x50ab50
]; /* Years 1800-1899 */

const TK20: number[] = [
0x3c4bd8, 0x624ae0, 0x4ca570, 0x3854d5, 0x5cd260, 0x44d950, 0x315554, 0x5656a0, 0x409ad0, 0x2a55d2,
0x504ae0, 0x3aa5b6, 0x60a4d0, 0x48d250, 0x33d255, 0x58b540, 0x42d6a0, 0x2cada2, 0x5295b0, 0x3f4977,
0x644970, 0x4ca4b0, 0x36b4b5, 0x5c6a50, 0x466d50, 0x312b54, 0x562b60, 0x409570, 0x2c52f2, 0x504970,
0x3a6566, 0x5ed4a0, 0x48ea50, 0x336a95, 0x585ad0, 0x442b60, 0x2f86e3, 0x5292e0, 0x3dc8d7, 0x62c950,
0x4cd4a0, 0x35d8a6, 0x5ab550, 0x4656a0, 0x31a5b4, 0x5625d0, 0x4092d0, 0x2ad2b2, 0x50a950, 0x38b557,
0x5e6ca0, 0x48b550, 0x355355, 0x584da0, 0x42a5b0, 0x2f4573, 0x5452b0, 0x3ca9a8, 0x60e950, 0x4c6aa0,
0x36aea6, 0x5aab50, 0x464b60, 0x30aae4, 0x56a570, 0x405260, 0x28f263, 0x4ed940, 0x38db47, 0x5cd6a0,
0x4896d0, 0x344dd5, 0x5a4ad0, 0x42a4d0, 0x2cd4b4, 0x52b250, 0x3cd558, 0x60b540, 0x4ab5a0, 0x3755a6,
0x5c95b0, 0x4649b0, 0x30a974, 0x56a4b0, 0x40aa50, 0x29aa52, 0x4e6d20, 0x39ad47, 0x5eab60, 0x489370,
0x344af5, 0x5a4970, 0x4464b0, 0x2c74a3, 0x50ea50, 0x3d6a58, 0x6256a0, 0x4aaad0, 0x3696d5, 0x5c92e0
]; /* Years 1900-1999 */

const TK21: number[] = [
0x46c960, 0x2ed954, 0x54d4a0, 0x3eda50, 0x2a7552, 0x4e56a0, 0x38a7a7, 0x5ea5d0, 0x4a92b0, 0x32aab5,
0x58a950, 0x42b4a0, 0x2cbaa4, 0x50ad50, 0x3c55d9, 0x624ba0, 0x4ca5b0, 0x375176, 0x5c5270, 0x466930,
0x307934, 0x546aa0, 0x3ead50, 0x2a5b52, 0x504b60, 0x38a6e6, 0x5ea4e0, 0x48d260, 0x32ea65, 0x56d520,
0x40daa0, 0x2d56a3, 0x5256d0, 0x3c4afb, 0x6249d0, 0x4ca4d0, 0x37d0b6, 0x5ab250, 0x44b520, 0x2edd25,
0x54b5a0, 0x3e55d0, 0x2a55b2, 0x5049b0, 0x3aa577, 0x5ea4b0, 0x48aa50, 0x33b255, 0x586d20, 0x40ad60,
0x2d4b63, 0x525370, 0x3e49e8, 0x60c970, 0x4c54b0, 0x3768a6, 0x5ada50, 0x445aa0, 0x2fa6a4, 0x54aad0,
0x4052e0, 0x28d2e3, 0x4ec950, 0x38d557, 0x5ed4a0, 0x46d950, 0x325d55, 0x5856a0, 0x42a6d0, 0x2c55d4,
0x5252b0, 0x3ca9b8, 0x62a930, 0x4ab490, 0x34b6a6, 0x5aad50, 0x4655a0, 0x2eab64, 0x54a570, 0x4052b0,
0x2ab173, 0x4e6930, 0x386b37, 0x5e6aa0, 0x48ad50, 0x332ad5, 0x582b60, 0x42a570, 0x2e52e4, 0x50d160,
0x3ae958, 0x60d520, 0x4ada90, 0x355aa6, 0x5a56d0, 0x462ae0, 0x30a9d4, 0x54a2d0, 0x3ed150, 0x28e952
]; /* Years 2000-2099 */

const TK22: number[] = [
0x4eb520, 0x38d727, 0x5eada0, 0x4a55b0, 0x362db5, 0x5a45b0, 0x44a2b0, 0x2eb2b4, 0x54a950, 0x3cb559,
0x626b20, 0x4cad50, 0x385766, 0x5c5370, 0x484570, 0x326574, 0x5852b0, 0x406950, 0x2a7953, 0x505aa0,
0x3baaa7, 0x5ea6d0, 0x4a4ae0, 0x35a2e5, 0x5aa550, 0x42d2a0, 0x2de2a4, 0x52d550, 0x3e5abb, 0x6256a0,
0x4c96d0, 0x3949b6, 0x5e4ab0, 0x46a8d0, 0x30d4b5, 0x56b290, 0x40b550, 0x2a6d52, 0x504da0, 0x3b9567,
0x609570, 0x4a49b0, 0x34a975, 0x5a64b0, 0x446a90, 0x2cba94, 0x526b50, 0x3e2b60, 0x28ab61, 0x4c9570,
0x384ae6, 0x5cd160, 0x46e4a0, 0x2eed25, 0x54da90, 0x405b50, 0x2c36d3, 0x502ae0, 0x3a93d7, 0x6092d0,
0x4ac950, 0x32d556, 0x58b4a0, 0x42b690, 0x2e5d94, 0x5255b0, 0x3e25fa, 0x6425b0, 0x4e92b0, 0x36aab6,
0x5c6950, 0x4674a0, 0x31b2a5, 0x54ad50, 0x4055a0, 0x2aab73, 0x522570, 0x3a5377, 0x6052b0, 0x4a6950,
0x346d56, 0x585aa0, 0x42ab50, 0x2e56d4, 0x544ae0, 0x3ca570, 0x2864d2, 0x4cd260, 0x36eaa6, 0x5ad550,
0x465aa0, 0x30ada5, 0x5695d0, 0x404ad0, 0x2aa9b3, 0x50a4d0, 0x3ad2b7, 0x5eb250, 0x48b540, 0x33d556
]; /* Years 2100-2199 */

const CAN: string[] = ["Giáp", "Ất", "Bính", "Đinh", "Mậu", "Kỷ", "Canh", "Tân", "Nhâm", "Quý"];
const CHI: string[] = ["Tý", "Sửu", "Dần", "Mão", "Thìn", "Tỵ", "Ngọ", "Mùi", "Thân", "Dậu", "Tuất", "Hợi"];
const TUAN: string[] = ["Chủ nhật", "Thứ hai", "Thứ ba", "Thứ tư", "Thứ năm", "Thứ sáu", "Thứ bảy"];
const GIO_HD: string[] = ["110100101100", "001101001011", "110011010010", "101100110100", "001011001101", "010010110011"];
const TIETKHI: string[] = ["Xuân phân", "Thanh minh", "Cốc vũ", "Lập hạ", "Tiểu mãn", "Mang chủng",
"Hạ chí", "Tiểu thử", "Đại thử", "Lập thu", "Xử thử", "Bạch lộ",
"Thu phân", "Hàn lộ", "Sương giáng", "Lập đông", "Tiểu tuyết", "Đại tuyết",
"Đông chí", "Tiểu hàn", "Đại hàn", "Lập xuân", "Vũ Thủy", "Kinh trập"
];

/* Create lunar date object, stores (lunar) date, month, year, leap month indicator, and Julian date number */
class LunarDate {
day: number;
month: number;
year: number;
leap: boolean;
jd: number;

constructor(dd: number, mm: number, yy: number, leap: boolean, jd: number) {
this.day = dd;
this.month = mm;
this.year = yy;
this.leap = leap;
this.jd = jd;
}
}

const PI: number = Math.PI;

/* Discard the fractional part of a number, e.g., INT(3.2) = 3 */
function INT(d: number): number {
return Math.floor(d);
}

function jdn(dd: number, mm: number, yy: number): number {
let a = INT((14 - mm) / 12);
let y = yy+4800-a;
let m = mm+12*a-3;
let jd = dd + INT((153*m+2)/5) + 365*y + INT(y/4) - INT(y/100) + INT(y/400) - 32045;
if (jd < 2299161) {
jd = dd + INT((153*m+2)/5) + 365*y + INT(y/4) - 32083;
}
return jd;
}

function jdn2date(jd: number): number[] {
let Z, A, alpha, B, C, D, E, dd, mm, yyyy, F;
Z = jd;
if (Z < 2299161) {
A = Z;
} else {
alpha = INT((Z-1867216.25)/36524.25);
A = Z + 1 + alpha - INT(alpha/4);
}
B = A + 1524;
C = INT( (B-122.1)/365.25);
D = INT( 365.25*C );
E = INT( (B-D)/30.6001 );
dd = INT(B - D - INT(30.6001*E));
if (E < 14) {
mm = E - 1;
} else {
mm = E - 13;
}
if (mm < 3) {
yyyy = C - 4715;
} else {
yyyy = C - 4716;
}
return [dd, mm, yyyy, jd];
}

function decodeLunarYear(yy: number, k: number): LunarDate[] {
let monthLengths, regularMonths, offsetOfTet, leapMonth, leapMonthLength, solarNY, currentJD, i, j, mm;
let ly: LunarDate[] = [];
monthLengths = new Array(29, 30);
regularMonths = new Array(12);
offsetOfTet = k >> 17;
leapMonth = k & 0xf;
leapMonthLength = monthLengths[k >> 16 & 0x1];
solarNY = jdn(1, 1, yy);
currentJD = solarNY+offsetOfTet;
j = k >> 4;
for(i = 0; i < 12; i++) {
regularMonths[12 - i - 1] = monthLengths[j & 0x1];
j >>= 1;
}
if (leapMonth == 0) {
for(mm = 1; mm <= 12; mm++) {
ly.push(new LunarDate(1, mm, yy, 0, currentJD));
currentJD += regularMonths[mm-1];
}
} else {
for(mm = 1; mm <= leapMonth; mm++) {
ly.push(new LunarDate(1, mm, yy, 0, currentJD));
currentJD += regularMonths[mm-1];
}
ly.push(new LunarDate(1, leapMonth, yy, 1, currentJD));
currentJD += leapMonthLength;
for(mm = leapMonth+1; mm <= 12; mm++) {
ly.push(new LunarDate(1, mm, yy, 0, currentJD));
currentJD += regularMonths[mm-1];
}
}
return ly;
}

function getYearInfo(yyyy: number): LunarDate[] {
let yearCode;
if (yyyy < 1300) {
yearCode = TK13[yyyy - 1200];
} else if (yyyy < 1400) {
yearCode = TK14[yyyy - 1300];
} else if (yyyy < 1500) {
yearCode = TK15[yyyy - 1400];
} else if (yyyy < 1600) {
yearCode = TK16[yyyy - 1500];
} else if (yyyy < 1700) {
yearCode = TK17[yyyy - 1600];
} else if (yyyy < 1800) {
yearCode = TK18[yyyy - 1700];
} else if (yyyy < 1900) {
yearCode = TK19[yyyy - 1800];
} else if (yyyy < 2000) {
yearCode = TK20[yyyy - 1900];
} else if (yyyy < 2100) {
yearCode = TK21[yyyy - 2000];
} else {
yearCode = TK22[yyyy - 2100];
}
return decodeLunarYear(yyyy, yearCode);
}

let FIRST_DAY = jdn(31, 1, 1200);
let LAST_DAY = jdn(31, 12, 2199);

function findLunarDate(jd: date, ly: LunarDate[]): LunarDate {
if (jd > LAST_DAY || jd < FIRST_DAY || ly[0].jd > jd) {
return new LunarDate(0, 0, 0, 0, jd);
}
let i = ly.length-1;
while (jd < ly[i].jd) {
i--;
}
let off = jd - ly[i].jd;
let ret = new LunarDate(ly[i].day+off, ly[i].month, ly[i].year, ly[i].leap, jd);
return ret;
}

function getLunarDate(dd: number, mm: number, yyyy: nunmber): LunarDate {
let ly, jd;
if (yyyy < 1200 || 2199 < yyyy) {
return new LunarDate(0, 0, 0, 0, 0);
}
ly = getYearInfo(yyyy);
jd = jdn(dd, mm, yyyy);
if (jd < ly[0].jd) {
ly = getYearInfo(yyyy - 1);
}
return findLunarDate(jd, ly);
}

function getSolarDate(dd: number, mm: number, yyyy: number): number[] {
if (yyyy < 1200 || 2199 < yyyy) {
return new LunarDate(0, 0, 0, 0, 0);
}
let ly = getYearInfo(yyyy);
let lm = ly[mm-1];
if (lm.month != mm) {
lm = ly[mm];
}
let ld = lm.jd + dd - 1;
return jdn2date(ld);
}

function getYearCanChi(year: number): string {
return CAN[(year+6) % 10] + " " + CHI[(year+8) % 12];
}

export default function getCustomizedLunarDate(date: Date): LunarDate {
let ret = getLunarDate(date.getDate(), date.getMonth() + 1, date.getFullYear());
ret.yearCanChi = getYearCanChi(ret.year);
return ret;
}
4 changes: 4 additions & 0 deletions src/styles/features/time.css
View file
Original file line number Diff line number Diff line change
Expand Up @@ -543,3 +543,7 @@
.clock-date.us .clock-date-aa-separator::after {
content: ', ';
}

.clock-date-secondary {
display: block;
}

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