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// This is split into comments so it doesn't look as gross with the closure tabs
window.onload = function () {
document.getElementById('nojs').hidden = true;
document.getElementById('block').hidden = false;
};
// File submit AJAX request
// After successful upload, actuate the file by calling actuate() on the successfully uploaded file
document.getElementById('upload').onsubmit = function () {
// Reset error message and success message
document.getElementById('upload-err').innerText = '';
document.getElementById('actuate-err').innerText = '';
document.getElementById('upload-response').innerText = '';
document.getElementById('download-link').innerText = '';
// Make AJAX request
let xhr = new XMLHttpRequest();
xhr.open('POST', '/api/v1/pendulum/upload');
let formData = new FormData(this);
xhr.send(formData);
xhr.onreadystatechange = function () {
if (xhr.readyState === 4) {
let response = JSON.parse(xhr.responseText);
if (xhr.status === 201) {
// Display upload success message to the user
document.getElementById('upload-response').innerText = response.msg;
actuate(response);
} else {
// Display upload error message to the user
document.getElementById('upload-err').innerText = response.error;
// DEBUG: Print full error if unknown error occurs
if (xhr.status === 500) console.error(response.error_msg);
}
}
};
document.getElementById('upload').reset();
return false;
};
// Actuate button AJAX request
// Should always be called after upload
// Implies that upload has been successful since it relies on the upload response
//
function actuate(file) {
let xhr = new XMLHttpRequest();
xhr.open('POST', '/api/v1/pendulum/actuate');
let data = {
file: file.file,
};
xhr.setRequestHeader('Content-Type', 'application/json; charset=utf-8');
xhr.setRequestHeader('X-CSRF-TOKEN', file.csrf);
xhr.send(JSON.stringify(data));
xhr.onreadystatechange = function () {
if (xhr.readyState === 4) {
let response = JSON.parse(xhr.responseText);
if (xhr.status === 200 || xhr.status === 500) {
createDownload(response.file);
}
if (xhr.status === 500) {
document.getElementById('actuate-err').innerText = response.error;
// DEBUG: Print full error if unknown error occurs
console.error(response.error_msg);
}
}
return;
};
}
// Creates the download element
function createDownload(response) {
if (!response) return;
const tempName = response.filename;
const downloadName = response.name.split('.')[0];
const downloadLink = document.createElement('a');
downloadLink.setAttribute(
'href',
`/api/v1/pendulum/download/?filename=${tempName}`
);
downloadLink.setAttribute('download', `${downloadName}.csv`);
downloadLink.innerText = 'Download CSV of results here.';
document.getElementById('download-link').appendChild(downloadLink);
return;
}
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