import {z} from 'zod'

export type GetApiEmailV1FoldersOptions = {baseUrl: string, bearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const emailFolder = z.object({id: z.number().int().optional(), email_id: z.number().int().optional(), parent_id: z.number().int().nullable().optional(), folder_name: z.string().optional(), path: z.string().optional(), delimitter: z.string().optional(), is_trash: z.boolean().optional(), is_spam: z.boolean().optional(), is_draft: z.boolean().optional(), is_junk: z.boolean().optional(), is_sent: z.boolean().optional(), is_inbox: z.boolean().optional(), is_pending: z.boolean().optional(), has_children: z.boolean().optional(), is_root: z.boolean().optional(), is_deleted: z.boolean().optional(), message_count: z.number().int().optional(), unread_message_count: z.number().int().optional()});

export const emailFolders = z.array(emailFolder);

export const meta = z.object({currentPage: z.number().optional(), from: z.number().optional(), lastPage: z.number().optional(), links: z.array(z.object({url: z.string().optional(), label: z.string().optional(), active: z.boolean().optional()})).optional(), path: z.string().optional(), perPage: z.number().optional(), to: z.number().optional(), total: z.number().optional()});

export const getApiEmailV1FoldersResponse = z.object({data: z.array(emailFolders).optional(), meta: meta.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
};

/**
 * Retrieve all email folders
 * 
 * GET /email/v1/folders
 */
export const getApiEmailV1Folders = async (options: GetApiEmailV1FoldersOptions) => {
const {baseUrl, fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/email/v1/folders${query.size > 0 ? `?${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(getApiEmailV1FoldersResponse, await res.json())
};