import {z} from 'zod'

export type GetApiMailTemplateArgs = {page?: number | undefined, pageSize?: number | undefined, sort?: string | undefined};

export type GetApiMailTemplateOptions = {baseUrl: string, APIToken?: string | undefined, fetch?: typeof fetch | undefined};

export const mailTemplate = z.object({id: z.string().optional(), version: z.string().optional(), bccEmailAddresses: z.string().optional(), ccEmailAddresses: z.string().optional(), createdDate: z.number().int().optional(), creatorId: z.string(), lastModifiedDate: z.number().int().optional(), name: z.string().optional(), subject: z.string().optional(), text: z.string().optional(), toEmailAddresses: z.string().optional(), type: z.enum(["EMAIL", "LETTER"]), useAsDefault: z.boolean().optional()});

export const getApiMailTemplateResponse = z.object({result: z.array(mailTemplate).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
};

/**
 * query mailTemplate
 * 
 * GET /mailTemplate
 */
export const getApiMailTemplate = async (args: GetApiMailTemplateArgs, options: GetApiMailTemplateOptions) => {
const {baseUrl, fetch: fetchFn = fetch, APIToken} = options ?? {}

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

if (args.page != null) query.append("page", String(args.page))
if (args.pageSize != null) query.append("pageSize", String(args.pageSize))
if (args.sort != null) query.append("sort", String(args.sort))
if (APIToken !== undefined) headers.set("AuthenticationToken", APIToken)

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