mapcomplete/Logic/TagUtils.ts
2021-03-22 03:05:08 +01:00

121 lines
No EOL
3.8 KiB
TypeScript

import {Tag} from "./Tag";
import {TagsFilter} from "./TagsFilter";
import {And} from "./And";
import {Utils} from "../Utils";
export class TagUtils {
static ApplyTemplate(template: string, tags: any): string {
for (const k in tags) {
while (template.indexOf("{" + k + "}") >= 0) {
const escaped = tags[k].replace(/</g, '&lt;').replace(/>/g, '&gt;');
template = template.replace("{" + k + "}", escaped);
}
}
return template;
}
static KVtoProperties(tags: Tag[]): any {
const properties = {};
for (const tag of tags) {
properties[tag.key] = tag.value
}
return properties;
}
/**
* Given two hashes of {key --> values[]}, makes sure that every neededTag is present in availableTags
*/
static AllKeysAreContained(availableTags: any, neededTags: any) {
for (const neededKey in neededTags) {
const availableValues: string[] = availableTags[neededKey]
if (availableValues === undefined) {
return false;
}
const neededValues: string[] = neededTags[neededKey];
for (const neededValue of neededValues) {
if (availableValues.indexOf(neededValue) < 0) {
return false;
}
}
}
return true;
}
/***
* Creates a hash {key --> [values]}, with all the values present in the tagsfilter
*
* @param tagsFilters
* @constructor
*/
static SplitKeys(tagsFilters: TagsFilter[]) {
const keyValues = {} // Map string -> string[]
tagsFilters = [...tagsFilters] // copy all
while (tagsFilters.length > 0) {
// Queue
const tagsFilter = tagsFilters.shift();
if (tagsFilter === undefined) {
continue;
}
if (tagsFilter instanceof And) {
tagsFilters.push(...tagsFilter.and);
continue;
}
if (tagsFilter instanceof Tag) {
if (keyValues[tagsFilter.key] === undefined) {
keyValues[tagsFilter.key] = [];
}
keyValues[tagsFilter.key].push(...tagsFilter.value.split(";"));
continue;
}
console.error("Invalid type to flatten the multiAnswer", tagsFilter);
throw "Invalid type to FlattenMultiAnswer"
}
return keyValues;
}
/**
* Given multiple tagsfilters which can be used as answer, will take the tags with the same keys together as set.
* E.g:
*
* FlattenMultiAnswer([and: [ "x=a", "y=0;1"], and: ["x=b", "y=2"], and: ["x=", "y=3"]])
* will result in
* ["x=a;b", "y=0;1;2;3"]
*
* @param tagsFilters
* @constructor
*/
static FlattenMultiAnswer(tagsFilters: TagsFilter[]): And {
if (tagsFilters === undefined) {
return new And([]);
}
let keyValues = TagUtils.SplitKeys(tagsFilters);
const and: TagsFilter[] = []
for (const key in keyValues) {
and.push(new Tag(key, Utils.Dedup(keyValues[key]).join(";")));
}
return new And(and);
}
static MatchesMultiAnswer(tag: TagsFilter, tags: any): boolean {
const splitted = TagUtils.SplitKeys([tag]);
for (const splitKey in splitted) {
const neededValues = splitted[splitKey];
if (tags[splitKey] === undefined) {
return false;
}
const actualValue = tags[splitKey].split(";");
for (const neededValue of neededValues) {
if (actualValue.indexOf(neededValue) < 0) {
return false;
}
}
}
return true;
}
}