import {z} from 'zod'

export type UserPreferences = {customer_id?: string | undefined, email_id?: string | undefined, categories?: {[key: string]: boolean} | undefined, opt_in_status: 'DOUBLE_OPTED_IN' | 'OPTED_OUT' | 'OPT_IN_PENDING', channel: 'email'};

export type OptinRequest = {user_preferences: UserPreferences};

export type UpdateApiV10OptInManagementUserPreferencesArgs = {'MOE-APPKEY': string, 'MOE-PROJECT-CODE'?: string | undefined, body: OptinRequest};

export type UpdateApiV10OptInManagementUserPreferencesOptions = {baseUrl?: string | undefined, basicAuth?: {username: string, password: string} | undefined, fetch?: typeof fetch | undefined};

export const optinSuccessResponse = z.object({message: 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
};

/**
 * Update User Email Opt-in Preferences
 * 
 * PUT /v1.0/opt-in-management/user-preferences
 */
export const updateApiV10OptInManagementUserPreferences = async (args: UpdateApiV10OptInManagementUserPreferencesArgs, options?: UpdateApiV10OptInManagementUserPreferencesOptions) => {
const {baseUrl = "https://api-01.moengage.com", fetch: fetchFn = fetch, basicAuth} = options ?? {}

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

if (args['MOE-APPKEY'] != null) headers.set("MOE-APPKEY", String(args['MOE-APPKEY']))
if (args['MOE-PROJECT-CODE'] != null) headers.set("MOE-PROJECT-CODE", String(args['MOE-PROJECT-CODE']))
if (basicAuth !== undefined) headers.set('authorization', `Basic ${btoa(`${basicAuth.username}:${basicAuth.password}`)}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1.0/opt-in-management/user-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(optinSuccessResponse, await res.json())
};