docker-registry-ui/src/scripts/taglist-order.js

91 lines
2.4 KiB
JavaScript

import { DockerRegistryUIError } from './error.js';
import { isDigit } from './utils.js';
const TAGLIST_ORDER_REGEX = /(alpha-(asc|desc);num-(asc|desc))|(num-(asc|desc);alpha-(asc|desc))/;
export const taglistOrderVariants = (taglistOrder) => {
switch (taglistOrder) {
case 'desc':
return 'alpha-desc;num-desc';
case 'asc':
return 'num-asc;alpha-asc';
case 'alpha-desc':
case 'alpha-asc':
case 'num-desc':
case 'num-asc':
return `${taglistOrder};${taglistOrder.startsWith('num') ? 'alpha' : 'num'}-asc`;
default:
if (!taglistOrder) {
return 'num-asc;alpha-asc';
} else if (TAGLIST_ORDER_REGEX.test(taglistOrder)) {
return taglistOrder;
}
throw new DockerRegistryUIError(`The order \`${taglistOrder}\` is not recognized.`);
}
};
export const taglistOrderParser = (taglistOrder) => {
const orders = taglistOrderVariants(taglistOrder)
.split(';')
.filter((e) => e)
.map((e) => e.split('-').filter((e) => e))
.reduce((acc, e, idx) => {
if (e.length > 1) {
acc[e[0] + 'Asc'] = e[1] === 'asc';
}
if (idx === 0) {
acc.numFirst = e[0] === 'num';
}
return acc;
}, {});
return orders;
};
export const tagReduce = (acc, e) => {
if (acc.length > 0 && isDigit(acc[acc.length - 1].charAt(0)) == isDigit(e)) {
acc[acc.length - 1] += e;
} else {
acc.push(e);
}
return acc;
};
export const splitTagToArray = (tag) =>
tag
.split('')
.reduce(tagReduce, [])
.map((e) => (isDigit(e.charAt(0)) ? parseInt(e) : e));
const applyOrder = (order, e1, e2) => {
if (e1 === e2) {
return 0;
}
if (order.numFirst) {
if (typeof e1 === 'number') {
const factor = order.numAsc ? 1 : -1;
return typeof e2 === 'number' ? (e1 - e2) * factor : -1;
} else if (typeof e2 === 'number') {
return 1;
} else {
const factor = order.alphaAsc ? 1 : -1;
return e1.localeCompare(e2) * factor
}
}
};
export const getTagComparator = (order) => {
return (e1, e2) => {
const tag1 = splitTagToArray(e1.tag || e1);
const tag2 = splitTagToArray(e2.tag || e2);
for (var i = 0; i < tag1.length && i < tag2.length; i++) {
const compare = applyOrder(order, tag1[i], tag2[i]);
if (compare != 0) {
return compare;
}
}
return (e1.tag || e1).length - (e2.tag || e2).length;
};
};