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const filterHttp = (items) => {
const httpsHosts = items
.filter(item => item[1].protocol === 'https:')
.map(item => item[1].host);
const httpsHostSet = new Set(httpsHosts);
return items.filter(
item => !(item[1].protocol === 'http:' && httpsHostSet.has(item[1].host))
);
};
const filterEmptyTitle = (items) => {
return items.filter(item => item[0].title && item[0].title !== '');
};
const filterClosedPath = (items) => {
const allSimplePaths = items
.filter(item => item[1].hash === '' && item[1].search === '')
.map(item => item[1].origin + item[1].pathname);
const allSimplePathSet = new Set(allSimplePaths);
return items.filter(
item => !(item[1].hash === '' && item[1].search === '' &&
(/\/$/).test(item[1].pathname) &&
allSimplePathSet.has(
(item[1].origin + item[1].pathname).replace(/\/$/, '')
)
)
);
};
const reduceByPathname = (items, min) => {
let hash = {};
for (let item of items) {
let pathname = item[1].origin + item[1].pathname;
if (!hash[pathname]) {
hash[pathname] = item;
} else if (hash[pathname][1].href.length > item[1].href.length) {
hash[pathname] = item;
}
}
let filtered = Object.values(hash);
if (filtered.length < min) {
return items;
}
return filtered;
};
const reduceByOrigin = (items, min) => {
let hash = {};
for (let item of items) {
let origin = item[1].origin;
if (!hash[origin]) {
hash[origin] = item;
} else if (hash[origin][1].href.length > item[1].href.length) {
hash[origin] = item;
}
}
let filtered = Object.values(hash);
if (filtered.length < min) {
return items;
}
return filtered;
};
const getCompletions = (keyword) => {
return browser.history.search({
text: keyword,
startTime: 0,
}).then((historyItems) => {
return [historyItems.map(item => [item, new URL(item.url)])]
.map(filterEmptyTitle)
.map(filterHttp)
.map(filterClosedPath)
.map(items => reduceByPathname(items, 10))
.map(items => reduceByOrigin(items, 10))
.map(items => items
.sort((x, y) => x[0].visitCount < y[0].visitCount)
.slice(0, 10)
.map(item => item[0])
)[0];
});
};
export { getCompletions };
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