import {z} from 'zod'

export type CreateManagedCustomerRequest = {firstName: string, lastName: string, email: string, phone: string, locale: string, businessName?: (string | null) | undefined};

export type CreateApiPublicV2ManagedCustomersArgs = {body: CreateManagedCustomerRequest};

export type CreateApiPublicV2ManagedCustomersOptions = {baseUrl?: string | undefined, bearer?: string | undefined, fetch?: typeof fetch | undefined};

export const validationResult = z.object({memberNames: z.array(z.string()).nullable().optional(), errorMessage: z.string().nullable().optional()});

export const createManagedCustomerResponse = z.object({accountNumber: z.string().nullable().optional(), serviceAccountClientId: z.string().nullable().optional(), serviceAccountSecret: z.string().nullable().optional()});

export const createManagedCustomerResponseServiceResponse = z.object({errors: z.array(validationResult).nullable().optional(), warnings: z.array(validationResult).nullable().optional(), information: z.array(z.string()).nullable().optional(), isValid: z.boolean().optional(), content: createManagedCustomerResponse.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
};

/**
 * Create a managed customer account
 * 
 * POST /public/v2/managed/customers
 */
export const createApiPublicV2ManagedCustomers = async (args: CreateApiPublicV2ManagedCustomersArgs, options?: CreateApiPublicV2ManagedCustomersOptions) => {
const {baseUrl = "https://starlink.com/api", fetch: fetchFn = fetch, bearer} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/public/v2/managed/customers${query.size > 0 ? `?${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(createManagedCustomerResponseServiceResponse, await res.json())
};