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index.js
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index.js
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const URL = "http://localhost:3000/tweets";
let nextPageUrl=null;
/**
* Retrive Twitter Data from API
*/
const onenter=(e)=>{
if(e.key=="Enter"){
getTwitterData();
}
}
const onNextPage=()=>{
if (nextPageUrl) {
getTwitterData(true);
}
}
const getTwitterData = (nextPage=false) => {
const query=document.getElementById('user-search-input').value;
if(!query)return;
const encodedquery=encodeURIComponent(query);
let fullurl=`${URL}?q=${encodedquery}&count=10`;
if(nextPage && nextPageUrl){
fullurl=nextPageUrl;
}
fetch(fullurl).then((response)=>{
return response.json();
}).then((data)=>{
buildTweets(data.statuses,nextPage);
saveNextPage(data.search_metadata);
nextPageButtonVisibility(data.search_metadata);
})
}
/**
* Save the next page data
*/
const saveNextPage = (metadata) => {
if(metadata.next_results){
nextPageUrl=`${URL}${metadata.next_results}`;
}
else{
nextPageUrl=null;
}
}
/**
* Handle when a user clicks on a trend
*/
const selectTrend = (e) => {
const text=e.innerText;
document.getElementById('user-search-input').value=text;
getTwitterData();
}
/**
* Set the visibility of next page based on if there is data on next page
*/
const nextPageButtonVisibility = (metadata) => {
if (metadata.next_results) {
document.getElementById('next-page ').style.visibility="visible";
}
else{
document.getElementById('next-page ').style.visibility="hidden";
}
}
/**
* Build Tweets HTML based on Data from API
*/
const buildTweets = (tweets, nextPage) => {
let twittercontent="";
tweets.map((tweet )=>{
const createddate=moment().from(tweet.created_at);
twittercontent+=`
<div class="tweet-container">
<div class="tweet-user-info">
<div class="tweet-user-profile" style="background-image: url(${tweet.user.profile_image_url_https})"></div>
<div class="tweet-user-name-container">
<div class="tweet-user-fullname">${tweet.user.name}</div>
<div class="tweet-user-username">@${tweet.user.screen_name}</div>
</div>
</div>
`
if(tweet.extended_entities && tweet.extended_entities.media.length > 0){
twittercontent += buildImages(tweet.extended_entities.media);
twittercontent+=buildVideo(tweet.extended_entities.media);
}
twittercontent +=`
<div class="tweet-text-container">
${tweet.full_text}
</div>
<div class="tweet-date-container">
${createddate}
</div>
</div>`
});
if (nextPage) {
document.querySelector('.tweets-list').insertAdjacentHTML('beforeend',twittercontent);
}else{
document.querySelector('.tweets-list').innerHTML=twittercontent;
}
}
/**
* Build HTML for Tweets Images
*/
const buildImages = (mediaList) => {
let imagesContent=`<div class="tweet-images-container">`;
let imageexists=false;
mediaList.map((media)=>{
if(media.type=="photo"){
imageexists=true;
imagesContent+=`<div class="tweet-image" style="background-image : url(${media.media_url_https}"></div>`;
}
});
imagesContent+=`</div>`;
return imageexists? imagesContent:'';
}
/**
* Build HTML for Tweets Video
*/
const buildVideo = (mediaList) => {
let videoContent=`<div class="tweet-vedio-container">`;
let videoexists=false;
mediaList.map((media)=>{
if(media.type=="video"){
videoexists=true;
videoContent+=`
<video controls>
<source src="${media.video_info.variants[0].url}" type="video/mp4">
</video>
`
}
else if(media.type=="animated_gif"){
videoexists=true;
videoContent+=`
<video loop autoplay>
<source src="${media.video_info.variants[0].url}" type="video/mp4">
</video>
`
}
});
videoContent+=`</div>`;
return videoexists? videoContent:'';
}