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import { DateTime, Duration } from 'luxon';
import { Filter, RefFilter, RefPageArgs, RefSort } from '../model/ref';
import { FilterConfig, TagQueryArgs, TagSort } from '../model/tag';
import { braces, fixClientQuery, hasPrefix } from './tag';
const DEFAULT_DESC_SUFFIXES = [':num', ':top', ':score', ':decay'];
const DEFAULT_DESC_PREFIXES = ['metadata->'];
const DEFAULT_DESC_EXACT = ['created', 'published', 'modified', 'rank'];
const DATE_SORT_FIELDS = ['created', 'modified', 'published'];
export const defaultDesc = (sort: string) =>
DEFAULT_DESC_EXACT.includes(sort) ||
DEFAULT_DESC_PREFIXES.some(prefix => sort.startsWith(prefix)) ||
DEFAULT_DESC_SUFFIXES.some(suffix => sort.endsWith(suffix));
export type FilterItem = { filter: UrlFilter, label: string, title?: string, time?: boolean };
export type FilterGroup = { filters: FilterItem[], label: string };
export type UrlFilter = Filter |
`!obsolete` |
`modified/before/${string}` |
`modified/after/${string}` |
`published/before/${string}` |
`published/after/${string}` |
`created/before/${string}` |
`created/after/${string}` |
`response/before/${string}` |
`response/after/${string}` |
`sources/${string}` |
`noSources/${string}` |
`responses/${string}` |
`noResponses/${string}` |
`query/${string}` |
`noDescendents/${string}` |
`scheme/${string}` |
`user/${string}` |
`plugin/${string}` |
`+plugin/${string}` |
`_plugin/${string}` |
`!plugin/${string}` |
`!+plugin/${string}` |
`!_plugin/${string}`;
export type SortItem = { value: RefSort | TagSort, label: string, title?: string };
export function negatable(filter: string) {
if (!filter) return false;
if (filter === 'obsolete') return true;
return filter.startsWith('query/') || filter.startsWith('user/') || filter.startsWith('!') || hasPrefix(filter, 'plugin');
}
export function toggle(filter: UrlFilter): UrlFilter {
if (filter.startsWith('query/')) {
const query = filter.substring('query/'.length);
if (query.startsWith('!(')) {
return 'query/' + query.substring(2, query.length - 1) as UrlFilter;
} else {
return 'query/!(' + query + ')' as UrlFilter;
}
}
if (filter.startsWith('user/')) {
const plugin = filter.substring('user/'.length);
if (plugin.startsWith('!')) {
return 'user/' + plugin.substring(1) as UrlFilter;
} else {
return 'user/!' + plugin as UrlFilter;
}
}
if (filter.startsWith('!')) return filter.substring(1) as any;
return '!' + filter as any;
}
export function convertFilter(filter: FilterConfig): FilterItem {
if (filter.sources) {
return { filter: `sources/${filter.sources}`, label: filter.label || filter.sources, title: filter.title };
} else if (filter.responses) {
return { filter: `responses/${filter.responses}`, label: filter.label || filter.responses, title: filter.title };
} else if (filter.scheme) {
return { filter: `scheme/${filter.scheme}`, label: filter.label || filter.scheme, title: filter.title };
} else if (filter.query) {
return { filter: `query/${filter.query}`, label: filter.label || filter.query, title: filter.title };
} else if (filter.user) {
return { filter: `user/${filter.user}`, label: filter.label || filter.user, title: filter.title };
} else if (filter.response) {
return { filter: filter.response, label: filter.label || filter.response, title: filter.title };
}
throw 'Can\'t convert filter';
}
export function convertSort(sort: any): SortItem {
return { value: sort.sort as any, label: sort.label, title: sort.title };
}
export function getArgs(
tagOrSimpleQuery?: string,
sort?: RefSort | RefSort[],
filters?: UrlFilter[],
search?: string,
pageNumber?: number,
pageSize?: number
): RefPageArgs {
Iif (filters?.includes('query/internal')) {
filters = without(filters, 'query/!internal', 'query/internal');
}
Iif (filters?.includes('query/plugin/delete')) {
filters = without(filters, 'query/!plugin/delete');
}
Iif (filters?.includes('user/plugin/user/hide')) {
filters = without(filters, 'user/!plugin/user/hide');
}
filters = uniq(filters);
let queryFilter = getFiltersQuery(filters);
const query = queryFilter && tagOrSimpleQuery ? `${braces(tagOrSimpleQuery)}:${queryFilter}` : tagOrSimpleQuery || queryFilter;
if (sort?.length) {
sort = Array.isArray(sort) ? [...sort] : [sort];
for (let i = 0; i < sort.length; i++) {
const s = sort[i];
if (!s.includes(',') && defaultDesc(s)) {
sort[i] = s + ',DESC' as RefSort;
}
}
} else {
sort = [];
}
return {
query: fixClientQuery(query),
sort,
search,
page: pageNumber,
size: pageSize,
...getRefFilter(filters),
};
}
export function withStableDateSort(args: RefPageArgs): RefPageArgs {
const sort = args.sort ?? [];
const [primaryField] = sort[0]?.split(',') ?? [];
if (!DATE_SORT_FIELDS.includes(primaryField)) return args;
const sortFields = sort.map(value => value.split(',')[0]);
return {
...args,
sort: [
...sort,
...(!sortFields.includes('modified') ? ['modified,ASC' as const] : []),
...(!sortFields.includes('origin') ? ['origin,ASC' as const] : []),
],
};
}
export function getFilters(filters: UrlFilter[] | UrlFilter) {
Iif (!filters) return [];
return (isArray(filters) ? filters : [filters])
.filter(f => f.startsWith('query/'))
.map(f => getFilter(f as `query/${string}`));
}
export function getFilter(filter: `query/${string}`) {
const query = filter.substring('query/'.length);
if (!query.startsWith('!(')) return query;
return negate(query.substring(2, query.length - 1));
}
export function negate(query: string): string {
Iif (query.includes('(') || query.includes(':') && query.includes('|')) {
// TODO: Parse query to negate
console.error('Query parsing not implemented. Bailing on negate.');
return query;
}
if (query.includes(':')) {
return braces(query.split(':').map(negate).join('|'));
}
if (query.includes('|')) {
return query.split('|').map(negate).join(':');
}
// Single tag
if (query.startsWith('!')) return query.substring(1);
return '!' + query;
}
export function getFiltersQuery(filters: UrlFilter[] | UrlFilter){
return getFilters(filters).map(braces).join(':');
}
export function parseArgs(params: any): RefPageArgs {
params.page = params.pageNumber;
delete params.pageNumber;
params.size = params.pageSize;
delete params.pageSize;
return {
...params,
...getRefFilter(params.filter as any),
};
}
function getRefFilter(filter?: UrlFilter[]): RefFilter {
Iif (!filter) return {};
let result: RefFilter = {};
for (const f of filter) {
if (f.startsWith('query/')) continue;
Iif (f.startsWith('noDescendents/')) {
if (result.noDescendents) console.warn('Multiple noDescendents filters (last wins)');
result.noDescendents = f.substring('noDescendents/'.length)
} else if (f.startsWith('sources/')) {
Iif (result.sources) console.warn('Multiple sources filters (last wins)');
result.sources = f.substring('sources/'.length)
I} else if (f.startsWith('noSources/')) {
if (result.noSources) console.warn('Multiple noSources filters (last wins)');
result.noSources = f.substring('noSources/'.length)
} else if (f.startsWith('responses/')) {
Iif (result.responses) console.warn('Multiple response filters (last wins)');
result.responses = f.substring('responses/'.length)
I} else if (f.startsWith('noResponses/')) {
if (result.noResponses) console.warn('Multiple noResponses filters (last wins)');
result.noResponses = f.substring('noResponses/'.length)
} else if (f.startsWith('scheme/')) {
result.scheme = f.substring('scheme/'.length)
} else if (f.startsWith('user/')) {
const p = f.substring('user/'.length);
if (hasPrefix(p, 'plugin')) {
result.userResponse ||= [];
result.userResponse.push(p);
E} else if (p.startsWith('!') && hasPrefix(p.substring(1), 'plugin')) {
result.noUserResponse ||= [];
result.noUserResponse.push(p.substring(1));
}
} else if (hasPrefix(f, 'plugin')) {
result.pluginResponse ||= [];
result.pluginResponse.push(f);
} else if (f.startsWith('!') && hasPrefix(f.substring(1), 'plugin')) {
result.noPluginResponse ||= [];
result.noPluginResponse.push(f.substring(1));
} else if (f.startsWith('modified/before/')) {
result.modifiedBefore = fixDateTime(f.substring('modified/before/'.length));
} else if (f.startsWith('modified/after/')) {
result.modifiedAfter = fixDateTime(f.substring('modified/after/'.length));
} else if (f.startsWith('published/before/')) {
result.publishedBefore = fixDateTime(f.substring('published/before/'.length));
I} else if (f.startsWith('published/after/')) {
result.publishedAfter = fixDateTime(f.substring('published/after/'.length));
I} else if (f.startsWith('created/before/')) {
result.createdBefore = fixDateTime(f.substring('created/before/'.length));
I} else if (f.startsWith('created/after/')) {
result.createdAfter = fixDateTime(f.substring('created/after/'.length));
I} else if (f.startsWith('response/before/')) {
result.responseBefore = fixDateTime(f.substring('response/before/'.length));
I} else if (f.startsWith('response/after/')) {
result.responseAfter = fixDateTime(f.substring('response/after/'.length));
} else if (f === '!obsolete') {
result['obsolete'] = null as any;
E} else if (f.startsWith('!')) {
result[f.substring(1) as Filter] = false;
} else {
result[f as Filter] = true;
}
}
return result;
}
export function fixDateTime(t: string) {
const relative = t.toUpperCase();
if (relative === 'NOW') return DateTime.now().toUTC().toISO()!;
if (relative.startsWith('P') && /\d/.test(relative)) {
const duration = Duration.fromISO(relative);
Eif (duration.isValid) return DateTime.now().minus(duration).toUTC().toISO()!;
}
return DateTime.fromISO(t).toUTC().toISO()!;
}
export function getTagFilter(filter?: UrlFilter[]): TagQueryArgs {
Iif (!filter) return {};
let result: TagQueryArgs = {};
for (const f of filter) {
if (f.startsWith('modified/before/')) {
result.modifiedBefore = f.substring('modified/before/'.length);
} else if (f.startsWith('modified/after/')) {
result.modifiedAfter = f.substring('modified/after/'.length);
} else if (f == 'plugin/delete') {
result.deleted = true;
}
}
return result;
}
export function getTagQueryFilter(query: string, filter?: UrlFilter[]): string {
Iif (!filter) return query;
let result = query;
for (const f of filter) {
if (f.startsWith('query/')) {
if (result) result += ':';
result += braces(getFilter(f as `query/${string}`));
}
}
return result;
}
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