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serverTasks.ts
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70 lines (54 loc) · 1.47 KB
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import { EventEmitter, Progress } from "vscode";
import { ProgressReport } from "./protocol";
const findIndex = require("lodash.findindex");
let tasks: ProgressReport[] = [];
const emitter = new EventEmitter<ProgressReport[]>();
let suggestedTaskEntrySize = 10;
export namespace serverTasks {
export const onDidUpdateServerTask = emitter.event;
export function updateServerTask(report: ProgressReport) {
applyReport(report);
emitter.fire(tasks);
}
export function suggestTaskEntrySize(size: number) {
if (size > suggestedTaskEntrySize) {
suggestedTaskEntrySize = size;
}
}
export function getHistory(): ProgressReport[] {
return tasks;
}
}
function organizeTasks() {
let newArray = tasks;
if (tasks.length > suggestedTaskEntrySize) {
newArray = recycleTasks(tasks, suggestedTaskEntrySize);
}
// make sure in-progress items are always at the end
newArray.sort((a, b) => {
const ai = a.complete ? 0 : 1, bi = a.complete ? 0 : 1;
return ai - bi;
});
tasks = newArray;
}
function recycleTasks(tasks: ProgressReport[], length: number) {
const newArray = [], delta = tasks.length - length;
let skipped = 0;
tasks.forEach(task => {
if (skipped < delta && task.complete) {
skipped++;
return;
}
newArray.push(task);
});
return newArray;
}
function applyReport(report: ProgressReport) {
const index = findIndex(tasks, task => task.id === report.id);
if (index === -1) {
tasks.push(report);
} else {
tasks[index] = report;
}
organizeTasks();
}