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var Stash = function(inbound, outbound) {
this.stashPath = '/presentation-api/receiving-ua/support/stash.py?id=';
this.inbound = inbound;
this.outbound = outbound;
}
// initialize a stash on wptserve
Stash.prototype.init = function() {
return Promise.all([
fetch(this.stashPath + this.inbound).then(response => {
return response.text();
}),
fetch(this.stashPath + this.outbound).then(response => {
return response.text();
})
]);
}
// upload a test result to a stash on wptserve
Stash.prototype.send = function(result) {
return fetch(this.stashPath + this.outbound, {
method: 'POST',
body: JSON.stringify({ type: 'data', data: result })
}).then(response => {
return response.text();
}).then(text => {
return text === 'ok' ? null : Promise.reject();
})
};
// upload a test result to a stash on wptserve via navigator.sendBeacon
Stash.prototype.sendBeacon = function(result) {
if ('sendBeacon' in navigator) {
navigator.sendBeacon(this.stashPath + this.outbound, JSON.stringify({ type: 'data', data: result }));
}
// Note: The following could be discarded, since XHR in synchronous mode is now being deprecated.
else {
return new Promise(resolve, reject => {
const xhr = new XMLHttpRequest();
xhr.open('POST', this.stashPath + this.outbound, false);
xhr.send(JSON.stringify({ type: 'data', data: result }));
});
}
};
// wait until a test result is uploaded to a stash on wptserve
Stash.prototype.receive = function() {
return new Promise((resolve, reject) => {
let intervalId;
const interval = 500; // msec
const polling = () => {
return fetch(this.stashPath + this.inbound).then(response => {
return response.text();
}).then(text => {
if (text) {
try {
const json = JSON.parse(text);
if (json.type === 'data')
resolve(json.data);
else
reject();
} catch(e) {
resolve(text);
}
clearInterval(intervalId);
}
});
};
intervalId = setInterval(polling, interval);
});
};
// reset a stash on wptserve
Stash.prototype.stop = function() {
return Promise.all([
fetch(this.stashPath + this.inbound).then(response => {
return response.text();
}),
fetch(this.stashPath + this.outbound).then(response => {
return response.text();
})
]).then(() => {
return Promise.all([
fetch(this.stashPath + this.inbound, {
method: 'POST',
body: JSON.stringify({ type: 'stop' })
}).then(response => {
return response.text();
}),
fetch(this.stashPath + this.outbound, {
method: 'POST',
body: JSON.stringify({ type: 'stop' })
}).then(response => {
return response.text();
})
]);
});
}
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