import {z} from 'zod'

export type EmailSubscriptions = {feature_updates?: boolean | undefined, marketing_emails?: boolean | undefined, tower_newsletter?: boolean | undefined};

export type UpdateEmailPreferencesBody = {$schema?: string | undefined, subscriptions: EmailSubscriptions};

export type UpdateApiUserEmailPreferencesArgs = {body: UpdateEmailPreferencesBody};

export type UpdateApiUserEmailPreferencesOptions = {baseUrl?: string | undefined, AccessTokenAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const emailSubscriptions = z.object({feature_updates: z.boolean().optional(), marketing_emails: z.boolean().optional(), tower_newsletter: z.boolean().optional()});

export const updateEmailPreferencesBody = z.object({$schema: z.string().optional(), subscriptions: emailSubscriptions});

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
};

/**
 * Update email preferences
 * 
 * PUT /user/email-preferences
 * 
 * Also accepts auth: APIKeyAuth
 */
export const updateApiUserEmailPreferences = async (args: UpdateApiUserEmailPreferencesArgs, options?: UpdateApiUserEmailPreferencesOptions) => {
const {baseUrl = "https://api.tower.dev/v1", fetch: fetchFn = fetch, AccessTokenAuth} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/user/email-preferences${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "PUT", 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(updateEmailPreferencesBody, await res.json())
};