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calendar.js
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calendar.js
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/* List of shades of green for the number of hours of work done for each day */
const COLORS = ["#e6f2ee", "#cde5dc", "#9accb9", "#68b297", "#359974", "#037f51", "#025939", "#024029", "#012618", "#011910"];
const MONTH_NAMES = ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"];
const DAY_NAMES = ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"];
/* Converts numHours into an integer and returns the corresponding color */
function getColor(numHours) {
if (numHours * 60 < 1) return "#ffffff";
return COLORS[Math.min(Math.floor(numHours), 9)];
}
/*
* Converts seconds into HH:MM:SS format.
* Source: https://stackoverflow.com/a/1322771/12132980
*/
function secToHHMMSS(numSec) {
return numSec ? new Date(numSec * 1000).toISOString().substr(11, 8) : "00:00:00";
}
/* Converts seconds into HH:MM format. */
function secToHHMM(numSec) {
return secToHHMMSS(numSec).substring(0, "00:00:00".length - 3)
}
/* Converts number of seconds to number of full hours */
function secToHr(n) {
return n / 60 / 60;
}
/* Gets 12 hour time in am/pm from a date object */
function formatAMPM(date) {
var hours = date.getHours();
var minutes = date.getMinutes();
var ampm = hours >= 12 ? "PM" : "AM";
hours = hours % 12;
hours = hours ? hours : 12;
minutes = minutes < 10 ? "0" + minutes : minutes;
return hours + ":" + minutes + " " + ampm;
}
/* Converts time in HH:MM:SS format into number of seconds. */
function hhmmssToSec(hhmmss) {
return (10 * parseInt(hhmmss[0]) + parseInt(hhmmss[1])) * 60 * 60 +
(10 * parseInt(hhmmss[3]) + parseInt(hhmmss[4])) * 60 +
(10 * parseInt(hhmmss[6]) + parseInt(hhmmss[7]));
}
/* Checks whether inputted string is in HH:MM:SS format */
function isHHMMSS(str) {
if (str.length !== 8) return false;
if (str[2] !== ':' || str[5] !== ':') return false;
if (isNaN(str[0]) || isNaN(str[1]) || isNaN(str[3]) || isNaN(str[4]) || isNaN(str[6]) || isNaN(str[7])) return false;
if (10 * parseInt(str[0]) + parseInt(str[1]) > 24) return false;
if (10 * parseInt(str[3]) + parseInt(str[6]) > 60) return false;
if (10 * parseInt(str[6]) + parseInt(str[7]) > 60) return false;
if (hhmmssToSec > 24 * 60 * 60) return false;
return true;
}
/* Returns the key used to store the number of hours worked for a specific day in local storage. */
function getKey(year, month, date) {
if (!year && !month && !date) return getKey(new Date().getFullYear(), new Date().getMonth(), new Date().getDate());
return year + ":" + month + ":" + date;
}
/*
* Sets the state of the start work button given parameter last, which is the epoch time of the last time
* the timer was started and -1 if the timer has not started or been stopped.
*/
function setTimerState(last) {
if (last === -1) {
document.getElementById("start_timer").innerText = "START WORK";
document.getElementById("start_timer").style.cssText = "background-color: "; // is this line needed?
} else {
chrome.storage.local.get(getKey(), function(items) {
document.getElementById("start_timer").innerText = "WORKING SINCE " + formatAMPM(new Date(last)) + ". CLICK TO STOP.";
document.getElementById("start_timer").style.cssText = "background-color: " + getColor(secToHr(items[getKey()]));
});
}
}
// on start work buton press
document.getElementById("start_timer").onclick = function() {
chrome.storage.local.get(["last", getKey()], function(items) {
if (items["last"] !== -1) {
// Turn off
const timeElapsed = (new Date().getTime() - items["last"]) / 1000;
alert("+" + secToHHMMSS(timeElapsed));
chrome.storage.local.set({[getKey()]: items[getKey()] + timeElapsed, "last": -1}, function() {
setTimerState(-1)
});
location.reload(); // reload to show updated time
} else {
// Turn on
chrome.storage.local.set({"last": new Date().getTime()}, function() {
setTimerState(new Date().getTime());
});
}
});
}
document.getElementById("switch_mode").onclick = function() {
chrome.storage.local.get("mode", function(items) {
if (!items["mode"]) {
chrome.storage.local.set({"mode": "today"}, function() {
setMode("today");
});
} else {
const other = items["mode"] === "month" ? "today" : "month";
setMode(other);
chrome.storage.local.set({"mode": other});
}
});
}
function makeHHMMShovertext(numSec, year, month, date) {
let span = document.createElement("span");
span.innerText = secToHHMMSS(numSec);
span.className = "tooltiptext";
// Make time editable for each date
span.contentEditable = "true";
span.onblur = function() {
if (!isHHMMSS(span.innerHTML)) {
alert("Invalid format. Please enter as HH:MM:SS.");
span.innerHTML = secToHHMMSS(numSec); // Reset text if invalid edit is made
return;
}
chrome.storage.local.set({[getKey(year, month, date)]: hhmmssToSec(span.innerHTML)});
location.reload();
};
return span;
}
/* Empty cells for days of the previous or next month */
function makeEmptyCell() {
let cell = document.createElement("div");
cell.className = "tooltip";
return cell;
}
/* Makes the first row of names of the days of the week */
function makeDayNameCell(dayName) {
let cell = document.createElement("div");
cell.innerText = DAY_NAMES[dayName][0];
cell.style.cssText = "background-color: gray";
cell.className = "grid-item";
return cell;
}
/* Default cell for every date of the month */
function makeDateCell(date, year, month) {
let cell = document.createElement("div");
cell.className = "tooltip";
cell.innerText = date;
chrome.storage.local.get(getKey(year, month, cell.innerText), function(items) {
cell.style.cssText = "background-color: " + getColor(secToHr(items[getKey(year, month, date)]));
cell.appendChild(makeHHMMShovertext(items[getKey(year, month, date)], year, month, date));
});
return cell;
}
function makeCalendar(year, month) {
/* Return the next multiple of x after and including n */
function nextMultiple(n, x) {
return n % x === 0 ? n : (n + (x - n % x));
}
// Make month title
document.getElementById("month_year").innerHTML = MONTH_NAMES[month] + " " + year;
const firstDay = new Date(year, month, 1).getDay(); // Get day of the first of the month
const numDaysInMonth = new Date(year, month + 1, 0).getDate(); // https://stackoverflow.com/a/1184359/12132980
const numRows = (numDaysInMonth + firstDay) / DAY_NAMES.length;
const container = document.getElementById("container");
container.style.setProperty('--grid-rows', numRows);
container.style.setProperty('--grid-cols', DAY_NAMES.length);
// Make first row of weekday names
for (const dayName in DAY_NAMES) {
container.append(makeDayNameCell(dayName));
}
// Make rest of calendar with each date
for (let i = 0; i < nextMultiple(numRows * DAY_NAMES.length, DAY_NAMES.length); i++) {
const date = i + 1 - firstDay;
if (date >= 1 && date <= numDaysInMonth) {
container.appendChild(makeDateCell(date, year, month));
} else {
container.appendChild(makeEmptyCell());
}
}
}
function setMode(mode) {
if (mode === "month") {
document.getElementById("switch_mode").innerText = "VIEW TODAY";
document.getElementById("calendar_layout").style.display = 'block';
document.getElementById("today_timer").style.display = 'none';
} else {
document.getElementById("switch_mode").innerText = "VIEW MONTH";
document.getElementById("calendar_layout").style.display = 'none';
document.getElementById("today_timer").style.display = 'block';
}
}
function setTodayTime(sec) {
document.getElementById("num_hrs_today").innerText = Math.floor(secToHr(sec));
}
function main() {
// Initialize values for today
chrome.storage.local.get(["last", getKey(), "mode"], function(items) {
if (!items["last"]) chrome.storage.local.set({"last": -1});
if (!items[getKey()]) chrome.storage.local.set({[getKey()]: 0});
if (!items["mode"]) chrome.storage.local.set({"mode": "month"});
setMode(items["mode"]);
setTimerState(items["last"]);
makeCalendar(new Date().getFullYear(), new Date().getMonth());
setTodayTime(items[getKey()]);
});
}
main();