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index.js
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index.js
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// For selecting all of the weather cards
let allWeatherCards = document.querySelectorAll(".weather-info");
// Array for knowing which weather card is the active weather card
let activeCard = new Array(allWeatherCards.length).fill(0);
let seachbar = document.getElementById("location");
// Selecting everything that is needed to be filled
let locationDate = document.querySelectorAll(".location-date");
let tempInfo = document.querySelectorAll(".temp-info");
let weatherType = document.querySelectorAll(".weather-type");
let humidity = document.querySelectorAll(".humidity");
let windSpeed = document.querySelectorAll(".wind-speed");
// Function for displaying the Loader when data is being fetched
const showLoader = () => {
document.querySelector(".carousel-slide").style.display = "none";
let loader = document.querySelector(".loader");
loader.style.display = "block";
document.getElementById("forward").style.display = "none";
document.getElementById("backward").style.display = "none";
};
// Function for removing the loader when data is to be shown
const removeLoader = () => {
let loader = document.querySelector(".loader");
loader.style.display = "none";
document.querySelector(".carousel-slide").style.display = "block";
document.querySelectorAll(".weather-info")[5].style.display = "flex";
activeCard[5] = 1;
document.querySelector("#forward").style.display = "block";
document.querySelector("#backward").style.display = "block";
};
// Function to remove both loader and Card when error occurs
const removeLoaderAndCards = () => {
let loader = document.querySelector(".loader");
loader.style.display = "none";
document.querySelector(".carousel-slide").style.display = "none";
document.querySelectorAll(".weather-info")[5].style.display = "none";
document.querySelector("#forward").style.display = "none";
document.querySelector("#backward").style.display = "none";
};
// For adding objects to weatherdata array
const addData = (weatherdata, data, future, epoch, timezone_offset) => {
let temperature;
let weather;
let humidity;
let windSpeed;
let dt;
if (future === 0) {
dt = new Date((epoch + timezone_offset[0]) * 1000);
temperature = data["current"]["temp"];
weather = data["current"]["weather"][0]["main"];
humidity = data["current"]["humidity"];
windSpeed = data["current"]["wind_speed"];
} else {
dt = new Date();
temperature = data["temp"]["day"];
weather = data["weather"][0]["main"];
humidity = data["humidity"];
windSpeed = data["wind_speed"];
}
weatherdata.push({
dt,
weather,
temperature,
humidity,
windSpeed,
});
};
// For getting weather of past
const pastWeather = async (
weatherdata,
latitude,
longitude,
timezone_offset,
currentUTC
) => {
let key = "f7116a6b23dc008193783bfdb74b4038";
const seconds_in_a_day = 24 * 60 * 60;
let epoch = currentUTC[0];
for (let i = 1; i <= 5; i++) {
epoch -= seconds_in_a_day;
url = encodeURI(
`https://api.openweathermap.org/data/2.5/onecall/timemachine?lat=${latitude}&lon=${longitude}&dt=${epoch}&units=metric&appid=${key}`
);
try {
let response = await fetch(url);
let data = await response.json();
addData(weatherdata, data, 0, epoch, timezone_offset);
} catch (error) {
throw new Error("Something went Wrong!! Please try again");
}
}
};
// For getting weather forecast
const forecastWeather = async (
weatherdata,
latitude,
longitude,
timezone_offset,
currentUTC
) => {
let key = "f7116a6b23dc008193783bfdb74b4038";
url = encodeURI(
`https://api.openweathermap.org/data/2.5/onecall?lat=${latitude}&lon=${longitude}&exclude={minutely,hourly}&units=metric&appid=${key}`
);
try {
let response = await fetch(url);
let data = await response.json();
timezone_offset.push(data["timezone_offset"]);
let utc_time_in_milliseconds = new Date().getTime();
currentUTC.push(Math.round(utc_time_in_milliseconds / 1000));
for (let i = data["daily"].length - 1; i >= 0; i--) {
addData(weatherdata, data["daily"][i], 1, currentUTC, timezone_offset);
weatherdata[data["daily"].length - 1 - i].dt = new Date(
currentUTC[0] * 1000 +
timezone_offset[0] * 1000 +
i * 24 * 60 * 60 * 1000
);
}
} catch (error) {
throw new Error("Something went Wrong!! Please try again");
}
};
// For reverse geocoding when showing weather of current location
const getPlaceName = async (latitude, longitude) => {
let key =
"pk.eyJ1IjoiYXNodXRvc2gxNzI5IiwiYSI6ImNrYnFkYnVuYTFyd24yeHA5dmVreHJhZGoifQ.VQ7C7oKEwPcY8Iu1NEf-Nw";
try {
let url = `https://api.mapbox.com/geocoding/v5/mapbox.places/${longitude},${latitude}.json?access_token=${key}`;
let results = await fetch(url);
let data = await results.json();
let place_name = data["features"][0]["place_name"];
document.getElementById("location").value = place_name;
} catch (error) {
throw new Error("Something went wrong! Please try again");
}
};
// For getting current location coordinates
const getCurrentGeolocation = () => {
return new Promise((resolve, reject) => {
navigator.geolocation.getCurrentPosition(resolve, reject, {
timeout: 10000,
});
});
};
// Function for getting all the data for current location
const getCurrentWeather = async () => {
let weatherdata = [];
let timezone_offset = [];
let currentUTC = [];
try {
let location = await getCurrentGeolocation();
showLoader();
let latitude = location.coords.latitude;
let longitude = location.coords.longitude;
await getPlaceName(latitude, longitude);
await forecastWeather(
weatherdata,
latitude,
longitude,
timezone_offset,
currentUTC
);
await pastWeather(
weatherdata,
latitude,
longitude,
timezone_offset,
currentUTC
);
} catch (error) {
throw error;
}
return weatherdata;
};
// Function for getting the coordinates for specified location
const getGeoLocation = async (str) => {
let key =
"pk.eyJ1IjoiYXNodXRvc2gxNzI5IiwiYSI6ImNrYnFkYnVuYTFyd24yeHA5dmVreHJhZGoifQ.VQ7C7oKEwPcY8Iu1NEf-Nw";
url = encodeURI(
`https://api.mapbox.com/geocoding/v5/mapbox.places/${str}.json?access_token=${key}`
);
try {
response = await fetch(url);
data = await response.json();
seachbar.value = data.features[0]["place_name"];
return data.features[0]["center"];
} catch (error) {
throw new Error("Cannot locate this place");
}
};
// Function for getting all the data for specified location
const getWeather = async () => {
let weatherdata = [];
let timezone_offset = [];
let currentUTC = [];
try {
let location = await getGeoLocation(seachbar.value);
await forecastWeather(
weatherdata,
location[1],
location[0],
timezone_offset,
currentUTC
);
await pastWeather(
weatherdata,
location[1],
location[0],
timezone_offset,
currentUTC
);
} catch (error) {
throw error;
}
return weatherdata;
};
const addDataInCards = (weatherdata) => {
let index = -1;
for (let i = weatherdata.length - 1; i >= 0; i--) {
index = weatherdata.length - 1 - i;
allWeatherCards[index].style.color = "white";
document.querySelectorAll(".separator")[index].style.border =
"1px solid white";
if (index == 4) {
locationDate[index].innerHTML = "YESTERDAY";
} else if (index == 5) {
locationDate[index].innerHTML = "TODAY";
} else if (index == 6) {
locationDate[index].innerHTML = "TOMORROW";
} else {
locationDate[index].innerHTML = `${weatherdata[
i
].dt.getUTCDate()}${suffix(weatherdata[i].dt.getUTCDate())} ${
MonthOfYear[weatherdata[i].dt.getUTCMonth()]
}`;
}
tempInfo[index].innerHTML =
weatherdata[i]["temperature"] + "<sup>o</sup>" + " " + "C";
weatherType[index].innerHTML = weatherdata[i].weather;
if (
weatherdata[i].weather === "Smoke" ||
weatherdata[i].weather === "Sand" ||
weatherdata[i].weather === "Dust"
) {
allWeatherCards[index].style.backgroundImage = "url(images/Smoke.jpg)";
} else {
if (weatherdata[i].weather === "Clear") {
allWeatherCards[index].style.color = "black";
document.querySelectorAll(".separator")[index].style.border =
"1px solid black";
}
allWeatherCards[
index
].style.backgroundImage = `url(images/${weatherdata[i].weather}.jpg)`;
}
humidity[index].innerHTML = `${weatherdata[i].humidity}%`;
windSpeed[index].innerHTML = `${Math.round(weatherdata[i].windSpeed)} m/s`;
}
};
// Function for running the current weather
getCurrentWeather()
.then((weatherdata) => {
addDataInCards(weatherdata);
removeLoader();
})
.catch((error) => {
removeLoaderAndCards();
if (error.code == 1) {
} else if (error.code == 2) {
alert("Position Unavailable at the moment!!");
} else if (error.code == 3) {
alert("Position Unavailable at the moment!!");
} else {
alert(error.message);
}
});
// Keybinding for "Enter" key
seachbar.addEventListener("keydown", (key) => {
if (key.which == 13) {
if (seachbar.value.length == 0) {
alert("Please enter a location");
} else {
showLoader();
let active = activeCard.indexOf(1);
if (active != -1) {
allWeatherCards[active].style.display = "none";
activeCard[active] = 0;
}
getWeather()
.then((weatherdata) => {
addDataInCards(weatherdata);
removeLoader();
})
.catch((error) => {
removeLoaderAndCards();
alert(error);
});
}
}
});
// Keybinding for array keys "left" and "right"
window.addEventListener("keydown", (key) => {
if (key.which == 39) {
for (let i = 0; i < activeCard.length; i++) {
if (activeCard[i] == 1) {
allWeatherCards[i].style.display = "none";
activeCard[i] = 0;
if (i == activeCard.length - 1) {
allWeatherCards[0].style.display = "flex";
activeCard[0] = 1;
} else {
allWeatherCards[i + 1].style.display = "flex";
activeCard[i + 1] = 1;
}
break;
}
}
} else if (key.which == 37) {
for (let i = 0; i < activeCard.length; i++) {
if (activeCard[i] == 1) {
allWeatherCards[i].style.display = "none";
activeCard[i] = 0;
if (i == 0) {
allWeatherCards[activeCard.length - 1].style.display = "flex";
activeCard[activeCard.length - 1] = 1;
} else {
allWeatherCards[i - 1].style.display = "flex";
activeCard[i - 1] = 1;
}
break;
}
}
}
});
// For setting date in the top of the website
let headerDate = document.querySelector("#date-header");
// For getting day of the week
let dayOfWeek = [
"Sunday",
"Monday",
"Tuesday",
"Wednesday",
"Thursday",
"Friday",
"Saturday",
];
// For getting month of the year
let MonthOfYear = new Array(12);
MonthOfYear[0] = "January";
MonthOfYear[1] = "February";
MonthOfYear[2] = "March";
MonthOfYear[3] = "April";
MonthOfYear[4] = "May";
MonthOfYear[5] = "June";
MonthOfYear[6] = "July";
MonthOfYear[7] = "August";
MonthOfYear[8] = "September";
MonthOfYear[9] = "October";
MonthOfYear[10] = "November";
MonthOfYear[11] = "December";
// For getting suffix of the date
const suffix = (date) => {
if (date >= 11 && date <= 13) {
return "th";
}
switch (date % 10) {
case 1:
return "st";
case 2:
return "nd";
case 3:
return "rd";
default:
return "th";
}
};
let today = new Date();
headerDate.innerHTML = `<strong>${
dayOfWeek[today.getDay()]
}</strong>, ${today.getDate()}${suffix(today.getDate())} ${
MonthOfYear[today.getMonth()]
}`;
let button = document.getElementById("btn");
// Added event listener for showing the results
button.addEventListener("click", () => {
if (seachbar.value.length == 0) {
alert("Please enter a location");
} else {
showLoader();
let active = activeCard.indexOf(1);
if (active != -1) {
allWeatherCards[active].style.display = "none";
activeCard[active] = 0;
}
getWeather()
.then((weatherdata) => {
addDataInCards(weatherdata);
removeLoader();
})
.catch((error) => {
removeLoaderAndCards();
alert(error);
});
}
});
// Event listener for right button
let forward = document.querySelector("#forward");
forward.addEventListener("click", () => {
for (let i = 0; i < activeCard.length; i++) {
if (activeCard[i] == 1) {
allWeatherCards[i].style.display = "none";
activeCard[i] = 0;
if (i == activeCard.length - 1) {
allWeatherCards[0].style.display = "flex";
activeCard[0] = 1;
} else {
allWeatherCards[i + 1].style.display = "flex";
activeCard[i + 1] = 1;
}
break;
}
}
});
// Event listener for left button
let backward = document.querySelector("#backward");
backward.addEventListener("click", () => {
for (let i = 0; i < activeCard.length; i++) {
if (activeCard[i] == 1) {
allWeatherCards[i].style.display = "none";
activeCard[i] = 0;
if (i == 0) {
allWeatherCards[activeCard.length - 1].style.display = "flex";
activeCard[activeCard.length - 1] = 1;
} else {
allWeatherCards[i - 1].style.display = "flex";
activeCard[i - 1] = 1;
}
break;
}
}
});