import {z} from 'zod'

export type GetApiV3BlogsByurlArgs = {url: string, view?: ('VIEW_TYPE_UNSPECIFIED' | 'READER' | 'AUTHOR' | 'ADMIN') | undefined};

export type GetApiV3BlogsByurlOptions = {baseUrl?: string | undefined, Oauth2?: string | undefined, Oauth2c?: string | undefined, fetch?: typeof fetch | undefined};

export const comment = z.object({author: z.object({displayName: z.string().optional(), id: z.string().optional(), image: z.object({url: z.string().optional()}).optional(), url: z.string().optional()}).optional(), blog: z.object({id: z.string().optional()}).optional(), content: z.string().optional(), id: z.string().optional(), inReplyTo: z.object({id: z.string().optional()}).optional(), kind: z.string().optional(), post: z.object({id: z.string().optional()}).optional(), published: z.string().optional(), selfLink: z.string().optional(), status: z.enum(["LIVE", "EMPTIED", "PENDING", "SPAM"]).optional(), updated: z.string().optional()});

export const post = z.object({author: z.object({displayName: z.string().optional(), id: z.string().optional(), image: z.object({url: z.string().optional()}).optional(), url: z.string().optional()}).optional(), blog: z.object({id: z.string().optional()}).optional(), content: z.string().optional(), customMetaData: z.string().optional(), etag: z.string().optional(), id: z.string().optional(), images: z.array(z.object({url: z.string().optional()})).optional(), kind: z.string().optional(), labels: z.array(z.string()).optional(), location: z.object({lat: z.number().optional(), lng: z.number().optional(), name: z.string().optional(), span: z.string().optional()}).optional(), published: z.string().optional(), readerComments: z.enum(["ALLOW", "DONT_ALLOW_SHOW_EXISTING", "DONT_ALLOW_HIDE_EXISTING"]).optional(), replies: z.object({items: z.array(comment).optional(), selfLink: z.string().optional(), totalItems: z.string().optional()}).optional(), selfLink: z.string().optional(), status: z.enum(["LIVE", "DRAFT", "SCHEDULED", "SOFT_TRASHED"]).optional(), title: z.string().optional(), titleLink: z.string().optional(), trashed: z.string().optional(), updated: z.string().optional(), url: z.string().optional()});

export const blog = z.object({customMetaData: z.string().optional(), description: z.string().optional(), id: z.string().optional(), kind: z.string().optional(), locale: z.object({country: z.string().optional(), language: z.string().optional(), variant: z.string().optional()}).optional(), name: z.string().optional(), pages: z.object({selfLink: z.string().optional(), totalItems: z.number().int().optional()}).optional(), posts: z.object({items: z.array(post).optional(), selfLink: z.string().optional(), totalItems: z.number().int().optional()}).optional(), published: z.string().optional(), selfLink: z.string().optional(), status: z.enum(["LIVE", "DELETED"]).optional(), updated: z.string().optional(), url: z.string().optional()});

export const validateResponse = async <Output>(
  schema: {
    readonly '~standard': {
      readonly validate: (value: unknown) => ({ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }) | Promise<{ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }>
    }
  },
  value: unknown
): Promise<Output> => {
  const result = await schema['~standard'].validate(value)

  if (result.issues !== undefined) {
    const detail = result.issues
      .map(({ message, path }) =>
        path?.length
          ? `${path.map((segment) => String(typeof segment === 'object' ? segment.key : segment)).join('.')}: ${message}`
          : message
      )
      .join('; ')

    throw new Error(`Response does not match the schema: ${detail}`, { cause: { issues: result.issues } })
  }

  return result.value
};

/**
 * Gets a blog by url.
 * 
 * GET /v3/blogs/byurl
 * 
 * Also accepts auth: Oauth2 + Oauth2c
 */
export const getApiV3BlogsByurl = async (args: GetApiV3BlogsByurlArgs, options?: GetApiV3BlogsByurlOptions) => {
const {baseUrl = "https://blogger.googleapis.com", fetch: fetchFn = fetch, Oauth2, Oauth2c} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
headers.set('accept', "application/json")

if (args.url != null) query.append("url", String(args.url))
if (args.view != null) query.append("view", String(args.view))
if (Oauth2 !== undefined) headers.set('authorization', `Bearer ${Oauth2}`)
if (Oauth2c !== undefined) headers.set('authorization', `Bearer ${Oauth2c}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v3/blogs/byurl${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "GET", headers})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(blog, await res.json())
};