import {z} from 'zod'

export type MailingListAddMember = {degreeStatusId?: (number | null) | undefined, candidateId?: (string | null) | undefined, qualificationId?: (string | null) | undefined, preferredTeachingSubjectId: string, acceptedPolicyId: string, considerationJourneyStageId: number, channelId?: (number | null) | undefined, creationChannelSourceId?: (number | null) | undefined, creationChannelServiceId?: (number | null) | undefined, creationChannelActivityId?: (number | null) | undefined, email: string, firstName: string, lastName: string, addressPostcode?: (string | null) | undefined, welcomeGuideVariant?: (string | null) | undefined, alreadySubscribedToEvents?: boolean | undefined, alreadySubscribedToMailingList?: boolean | undefined, alreadySubscribedToTeacherTrainingAdviser?: boolean | undefined, defaultContactCreationChannel?: (number | null) | undefined, defaultCreationChannelSourceId?: (number | null) | undefined, defaultCreationChannelServiceId?: (number | null) | undefined, defaultCreationChannelActivityId?: (number | null) | undefined, situation?: (number | null) | undefined, citizenship?: (number | null) | undefined, visaStatus?: (number | null) | undefined, location?: (number | null) | undefined, graduationYear?: (number | null) | undefined, inferredGraduationDate?: (string | null) | undefined};

export type CreateApiApiMailingListMembersArgs = {body: MailingListAddMember};

export type CreateApiApiMailingListMembersOptions = {baseUrl: string, apiKey?: string | undefined, fetch?: typeof fetch | undefined};

export const degreeStatusResponse = z.object({degreeStatusId: z.number().int().nullable().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
};

/**
 * Adds a new member to the mailing list.
 * 
 * POST /api/mailing_list/members
 */
export const createApiApiMailingListMembers = async (args: CreateApiApiMailingListMembersArgs, options: CreateApiApiMailingListMembersOptions) => {
const {baseUrl, fetch: fetchFn = fetch, apiKey} = options ?? {}

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

if (apiKey !== undefined) headers.set("Authorization", apiKey)

const url = `${baseUrl.replace(/\/+$/, '')}/api/mailing_list/members${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers, body: JSON.stringify(args.body)})

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

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