ohif-viewer/Packages/lesiontracker/lib/api/timepoint.js
2016-07-22 11:12:04 +02:00

89 lines
2.6 KiB
JavaScript

class TimepointApi {
constructor() {
// Run this computation every time the timepoints are changed
Tracker.autorun(() => {
// Get all the timepoints and store it
this.timepoints = new Mongo.Collection(null);
const timepoints = Timepoints.find({}, {
sort: {
latestDate: -1
}
}).fetch();
_.each(timepoints, timepoint => this.timepoints.insert(timepoint));
});
}
// Return all timepoints
all() {
return this.timepoints.find().fetch();
}
// Return only the current and prior timepoints
latest() {
const options = {
limit: 2
};
return this.timepoints.find({}, options).fetch();
}
// Return only the key timepoints (current, prior, nadir and baseline)
key() {
// Create a new Mini Mongo Collection to store the result
const result = new Mongo.Collection(null);
// Get all the timepoints
const all = this.all();
// Iterate over each timepoint and insert the key ones in the result
_.each(all, (timepoint, index) => {
if (index < 2 || index === (all.length - 1)) {
result.insert(timepoint);
}
});
// Return the resulting timepoints
return result.find().fetch();
}
// Return only the timepoints for the given study
study(studyInstanceUid) {
// Create a new Mini Mongo Collection to store the result
const result = new Mongo.Collection(null);
// Iterate over each timepoint and insert the key ones in the result
_.each(this.all(), (timepoint, index) => {
if (_.contains(timepoint.studyInstanceUids, studyInstanceUid)) {
result.insert(timepoint);
}
});
// Return the resulting timepoints
return result.find().fetch();
}
// Build the timepoint title based on its date
title(timepoint) {
const timepointName = getTimepointName(timepoint);
const all = this.all();
let index = -1;
_.each(all, (currentTimepoint, currentIndex) => {
if (currentTimepoint.timepointId === timepoint.timepointId) {
index = currentIndex;
}
});
const states = {
0: '(Current)',
1: '(Prior)'
};
// TODO: [design] find out how to define the nadir timepoint
const parenthesis = states[index] || '';
return `${timepointName} ${parenthesis}`;
}
}
export { TimepointApi };