Function parseProviders

src/core/lib/providers.ts:11–35

(params: {
  providers: Provider[]
  url: InternalUrl
  providerId?: string
})

 * and deep merge user-defined options.
 */
export default function parseProviders(params: {
  providers: Provider[]
  url: InternalUrl
  providerId?: string
}): {
  providers: InternalProvider[]
  provider?: InternalProvider
} {
  const { url, providerId } = params

  const providers = params.providers.map(({ options, ...rest }) => {
    const defaultOptions = normalizeProvider(rest as Provider)
    const userOptions = normalizeProvider(options as Provider)

    return merge(defaultOptions, {
      ...userOptions,
      signinUrl: `${url}/signin/${userOptions?.id ?? rest.id}`,
      callbackUrl: `${url}/callback/${userOptions?.id ?? rest.id}`,
    })
  })

  const provider = providers.find(({ id }) => id === providerId)

  return { providers, provider }
}

function normalizeProvider(provider?: Provider) {
  if (!provider) return