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import type { FileReader } from './helpers/file-reader/file-reader'
import {
PagesAPILocaleRouteMatcher,
PagesAPIRouteMatcher,
} from '../../route-matchers/pages-api-route-matcher'
import { RouteKind } from '../../route-kind'
import path from 'path'
import type { LocaleRouteNormalizer } from '../../normalizers/locale-route-normalizer'
import { FileCacheRouteMatcherProvider } from './file-cache-route-matcher-provider'
import { DevPagesNormalizers } from '../../normalizers/built/pages'
export class DevPagesAPIRouteMatcherProvider extends FileCacheRouteMatcherProvider<PagesAPIRouteMatcher> {
private readonly expression: RegExp
private readonly normalizers: DevPagesNormalizers
constructor(
private readonly pagesDir: string,
private readonly extensions: ReadonlyArray<string>,
reader: FileReader,
private readonly localeNormalizer?: LocaleRouteNormalizer
) {
super(pagesDir, reader)
// Match any route file that ends with `/${filename}.${extension}` under the
// pages directory.
this.expression = new RegExp(`\\.(?:${extensions.join('|')})$`)
this.normalizers = new DevPagesNormalizers(pagesDir, extensions)
}
private test(filename: string): boolean {
// If the file does not end in the correct extension it's not a match.
if (!this.expression.test(filename)) return false
// Pages API routes must exist in the pages directory with the `/api/`
// prefix. The pathnames being tested here though are the full filenames,
// so we need to include the pages directory.
// TODO: could path separator normalization be needed here?
if (filename.startsWith(path.join(this.pagesDir, '/api/'))) return true
for (const extension of this.extensions) {
// We can also match if we have `pages/api.${extension}`, so check to
// see if it's a match.
if (filename === path.join(this.pagesDir, `api.${extension}`)) {
return true
}
}
return false
}
protected async transform(
files: ReadonlyArray<string>
): Promise<ReadonlyArray<PagesAPIRouteMatcher>> {
const matchers: Array<PagesAPIRouteMatcher> = []
for (const filename of files) {
// If the file isn't a match for this matcher, then skip it.
if (!this.test(filename)) continue
const pathname = this.normalizers.pathname.normalize(filename)
const page = this.normalizers.page.normalize(filename)
const bundlePath = this.normalizers.bundlePath.normalize(filename)
if (this.localeNormalizer) {
matchers.push(
new PagesAPILocaleRouteMatcher({
kind: RouteKind.PAGES_API,
pathname,
page,
bundlePath,
filename,
i18n: {},
})
)
} else {
matchers.push(
new PagesAPIRouteMatcher({
kind: RouteKind.PAGES_API,
pathname,
page,
bundlePath,
filename,
})
)
}
}
return matchers
}
}
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