Files
life_generators/fortune_generator/fortune.js

256 lines
9.4 KiB
JavaScript

let ip;
$.getJSON("https://api.ipify.org?format=json", function(data) {
ip = data.ip;
})
let goodFortunes = [];
let badFortunes = [];
let special_events = [];
// using async and await to prevent fetching the data too late...
async function fetch_data(){
await fetch("fortune.json")
.then(response => response.json())
.then(data => {
goodFortunes = data.goodFortunes;
badFortunes = data.badFortunes;
})
await fetch("special.json")
.then(response => response.json())
.then(data => {
special_events = data.special_events;
})
}
// color adjust
const goodColor = "#e74c3c";
const badColor = "#000000bf";
const middleColor = "#5eb95e";
const descColor = "#7f7f7f";
const dateColor = "#096e1bC9";
const specialEventColor = "#3e4fbb";
const daystoSpecialEvent = "#485ccd";
const textColor = [goodColor, goodColor, goodColor, goodColor, goodColor, middleColor, badColor, badColor];
const fortuneStatus = ["大吉", "中吉", "小吉", "吉", "末吉", "中平", "凶", "大凶"];
const chineseMonth = ["一", "二", "三", "四", "五", "六", "七", "八", "九", "十", "十一", "十二"];
const week = ['日', '一', '二', '三', '四', '五', '六'];
const title = `<span style='font-size:8vmin; color:#000000CC;'><b>今日運勢</b></span>`;
const allGood = `<span style='font-size:6vmin; color:${badColor};'><b>萬事皆宜</b></span>`;
const allBad = `<span style='font-size:6vmin; color:${goodColor};'><b>諸事不宜</b></span>`;
// date
const d = new Date();
const date = d.getDate();
const day = d.getDay();
const month = d.getMonth() + 1;
const year = d.getFullYear();
function daysDiff(eventIndex){
// define the date right now and the special event date
const startDate = new Date(`${year}-${month}-${date}`);
const endDate = new Date(`${special_events[eventIndex].year}-${special_events[eventIndex].month}-${special_events[eventIndex].date}`);
// calculate the difference in milliseconds and convert it to days
const timeDiff = Math.floor((endDate - startDate) / (1000 * 60 * 60 * 24));
return timeDiff;
}
// pre-search jquery - save to a variable to improve performance
const J_l_1_event = $('#l-1-event');
const J_l_1_desc = $('#l-1-desc');
const J_l_2_event= $('#l-2-event');
const J_l_2_desc = $('#l-2-desc');
const J_r_1_event = $('#r-1-event');
const J_r_1_desc = $('#r-1-desc');
const J_r_2_event= $('#r-2-event');
const J_r_2_desc = $('#r-2-desc');
const J_ip_to_fortune = $('#ip-to-fortune');
let special = false;
let special_events_index = 0;
// init page
async function init_page(){
// fetch fortune.json and special.json
await fetch_data();
// hide the elements of show fortune page
$('#result-page').hide();
// show date before button pressed
const showMonth = `<span style='font-size:10vmin; color:${dateColor}; -webkit-writing-mode:vertical-lr;'><b>${chineseMonth[month - 1] + "月"}</b></span>`;
const showDate = `<span style='font-size:25vmin; color:${dateColor};'><b>${("0" + date).substr(-2)}</b></span>`;
const showDay = `<span style='font-size:10vmin; color:${dateColor}; -webkit-writing-mode:vertical-lr; margin-right:10%;'><b>${"星期" + week[day]}</b></span>`;
$('#month').html(showMonth);
$('#date').html(showDate);
$('#weekday').html(showDay);
let eventIndex_1 = -1, eventIndex_2 = -1;
// check if there is special event today
for(let i = 0; i < special_events.length; i++){
if(daysDiff(i) > 0){
if(eventIndex_1 == -1) eventIndex_1 = i;
else if(eventIndex_2 == -1) eventIndex_2 = i;
}
else if(daysDiff(i) == 0){
special = true;
special_events_index = i;
}
}
// if there is upcoming event then show
if(eventIndex_1 != -1){
let days = daysDiff(eventIndex_1);
let upcoming_event_1 = `<span style='font-size:5vmin; color:${descColor};'>距離<b style='color:${specialEventColor}'>${special_events[eventIndex_1].event}</b>還剩<b style='color:${daystoSpecialEvent}'>${days}</b>天</span>`;
$('#upcoming-event-1').html(upcoming_event_1);
}
if(eventIndex_2 != -1){
let days = daysDiff(eventIndex_2);
let upcoming_event_2 = `<span style='font-size:5vmin; color:${descColor};'>距離<b style='color:${specialEventColor}'>${special_events[eventIndex_2].event}</b>還剩<b style='color:${daystoSpecialEvent}'>${days}</b>天</span>`;
$('#upcoming-event-2').html(upcoming_event_2);
}
// show special event if today is a special day
if(special){
let special_event_today = `<span style='font-size:9vmin; color:${descColor};'>今日是<b style='color:${goodColor};'>${special_events[special_events_index].event}</b></span>`;
$('#special-day').html(special_event_today);
}
}
// event bar
const good_span = event => `<span style='font-size:5.6vmin; color:${goodColor};'><b>宜: </b>${event}</span>`;
const bad_span = event => `<span style='font-size:5.6vmin; color:${badColor};'><b>忌: </b>${event}</span>`;
const desc_span = desc => `<span style='font-size:3.5vmin; color:${descColor};'>${desc}</span>`;
function Appear() {
$('#title').html(title);
$('#btn').html('打卡成功');
// disable the btn
$('#btn').attr("disabled", "disabled");
//change page
$('#init-page').hide();
$('#result-page').show();
// transform ip to four numbers
let num = ip.split(".").map(num => parseInt(num));
// some lengths
const goodLen = goodFortunes.length;
const badLen = badFortunes.length;
const statusLen = fortuneStatus.length;
// TODO: improve the hash process
let hashDate = Math.round(Math.log10(year * ((month << (Math.log10(num[3]) + day - 1)) * (date << Math.log10(num[2] << day)))));
let seed1 = (num[0] >> hashDate) * (num[1] >> Math.min(hashDate, 2)) + (num[2] << 1) * (num[3] >> 3) + (date << 3) * (month << hashDate) + (year * day) >> 2;
let seed2 = (num[0] << (hashDate + 2)) * (num[1] << hashDate) + (num[2] << 1) * (num[3] << 3) + (date << (hashDate - 1)) * (month << 4) + year >> hashDate + (date * day) >> 1;
// decide the status
let status_index = ((seed1 + seed2) % statusLen + statusLen) % statusLen;
let status = `<span style='font-size:12vmin; color:${textColor[status_index]};'><b>§ ${fortuneStatus[status_index]} §</b></span>`;
if(special){
status_index = special_events[special_events_index].status_index;
let special_status = `<span style='font-size:12vmin; color:${textColor[status_index]};'><b>§ ${fortuneStatus[status_index]} §</b></span>`;
J_ip_to_fortune.html(special_status);
}
else{
J_ip_to_fortune.html(status);
}
// make sure the events won't collide
let set = new Set();
let l1 = (seed1 % goodLen + goodLen) % goodLen;
set.add(goodFortunes[l1].event);
let l2 = (((seed1 << 1) + date) % goodLen + goodLen) % goodLen;
while(set.has(goodFortunes[l2].event)){
l2 = (l2 + 1) % goodLen;
}
set.add(goodFortunes[l2].event);
let r1 = (((seed1 >> 1) + (d.getMonth() << 3)) % badLen + badLen) % badLen;
while(set.has(badFortunes[r1].event)){
r1 = (r1 + 2) % badLen;
}
set.add(badFortunes[r1].event);
let r2 = ((((((seed1 << 3) + (d.getFullYear() >> 5) * (date << 2)) % badLen) * seed2) >> 6) % badLen + badLen) % badLen;
while(set.has(badFortunes[r2].event)){
r2 = (r2 + 1) % badLen;
}
// organize the stuffs below this line...
let l_1_event = good_span(goodFortunes[l1].event);
let l_1_desc = desc_span(goodFortunes[l1].description);
let l_2_event = good_span(goodFortunes[l2].event);
let l_2_desc = desc_span(goodFortunes[l2].description);
let r_1_event = bad_span(badFortunes[r1].event);
let r_1_desc = desc_span(badFortunes[r1].description);
let r_2_event = bad_span(badFortunes[r2].event);
let r_2_desc = desc_span(badFortunes[r2].description);
if(special){
// instead clear variable name, use short variable name for here... cuz it's too repetitive
let Data = special_events[special_events_index];
if(status_index == 0){
J_r_1_event.html(allGood);
}
else{
J_r_1_event.html(bad_span(Data.badFortunes.r_1_event));
J_r_1_desc.html(desc_span(Data.badFortunes.r_1_desc));
J_r_2_event.html(bad_span(Data.badFortunes.r_2_event));
J_r_2_desc.html(desc_span(Data.badFortunes.r_2_desc));
if(Data.badFortunes.r_1_event.length == 0){
J_r_1_event.html(r_1_event);
J_r_1_desc.html(r_1_desc);
}
if(Data.badFortunes.r_2_event.length == 0){
J_r_2_event.html(r_2_event);
J_r_2_desc.html(r_2_desc);
}
}
if(status_index == statusLen - 1){
J_l_1_event.html(allBad);
}
else{
J_l_1_event.html(good_span(Data.goodFortunes.l_1_event));
J_l_1_desc.html(desc_span(Data.goodFortunes.l_1_desc));
J_l_2_event.html(good_span(Data.goodFortunes.l_2_event));
J_l_2_desc.html(desc_span(Data.goodFortunes.l_2_desc));
if(Data.goodFortunes.l_1_event.length == 0){
J_l_1_event.html(l_1_event);
J_l_1_desc.html(l_1_desc);
}
if(Data.goodFortunes.l_2_event.length == 0){
J_l_2_event.html(l_2_event);
J_l_2_desc.html(l_2_desc);
}
}
}
else{
if(status_index == 0){
J_r_1_event.html(allGood);
}
else{
J_r_1_event.html(r_1_event);
J_r_1_desc.html(r_1_desc);
J_r_2_event.html(r_2_event);
J_r_2_desc.html(r_2_desc);
}
if(status_index == statusLen - 1){
J_l_1_event.html(allBad);
}
else{
J_l_1_event.html(l_1_event);
J_l_1_desc.html(l_1_desc);
J_l_2_event.html(l_2_event);
J_l_2_desc.html(l_2_desc);
}
}
}
function getLuck() {
Update();
}
init_page();