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import {getCurrentBranch} from '.';
export default class GitHubURL {
// @ts-expect-error https://github.com/microsoft/TypeScript/issues/26792
user: string;
// @ts-expect-error
repository: string;
// @ts-expect-error
route: string;
// @ts-expect-error
branch: string;
// @ts-expect-error
filePath: string;
private internalUrl: URL;
constructor(url: string) {
// Use Facade pattern instead of inheritance #3193
this.internalUrl = new URL(url);
this.pathname = this.internalUrl.pathname;
}
toString(): string {
return this.href;
}
toJSON(): string {
return this.href;
}
assign(...replacements: Array<Partial<GitHubURL>>): this {
Object.assign(this, ...replacements);
return this;
}
private disambiguateReference(ambiguousReference: string[]): {branch: string; filePath: string} {
const branch = ambiguousReference[0];
// History pages might use search parameters
const filePathFromSearch = this.searchParams.getAll('path[]').join('/');
if (filePathFromSearch) {
this.searchParams.delete('path[]');
return {branch, filePath: filePathFromSearch};
}
const filePath = ambiguousReference.slice(1).join('/');
const currentBranch = getCurrentBranch();
if (!currentBranch) {
throw new Error('GitHubURL can only be used on pages with a branch/reference.');
}
const currentBranchSections = currentBranch.split('/');
if (
ambiguousReference.length === 1 || // Ref has no slashes
currentBranchSections.length === 1 // Current branch has no slashes
) {
// Then the reference is not ambiguous
return {branch, filePath};
}
for (const [i, section] of currentBranchSections.entries()) {
if (ambiguousReference[i] !== section) {
console.warn(`The supplied path (${ambiguousReference.join('/')}) is ambiguous (current reference is \`${currentBranch}\`)`);
return {branch, filePath};
}
}
return {
branch: currentBranch,
filePath: ambiguousReference.slice(currentBranchSections.length).join('/')
};
}
get pathname(): string {
return `/${this.user}/${this.repository}/${this.route}/${this.branch}/${this.filePath}`.replace(/((undefined)?\/)+$/g, '');
}
set pathname(pathname: string) {
const [user, repository, route, ...ambiguousReference] = pathname.replace(/^\/|\/$/g, '').split('/');
const {branch, filePath} = this.disambiguateReference(ambiguousReference);
this.assign({user, repository, route, branch, filePath});
}
get href(): string {
// Update the actual underlying URL
this.internalUrl.pathname = this.pathname;
return this.internalUrl.href;
}
set href(href: string) {
this.internalUrl.href = href;
}
// Proxy all other getters/setters to internalUrl
get hash(): string {
return this.internalUrl.hash;
}
set hash(hash: string) {
this.internalUrl.hash = hash;
}
get search(): string {
return this.internalUrl.search;
}
set search(search: string) {
this.internalUrl.search = search;
}
get searchParams(): URLSearchParams {
return this.internalUrl.searchParams;
}
}
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