import {z} from 'zod'

export type HostedSignupRequest = {email: string, company_name: string, requested_slug?: (string | null) | undefined, hosting_mode?: ('definite_cloud' | 'self_hosted') | undefined, terms_accepted: boolean};

export type CreateApiOnpremV1HostedSignupsArgs = {'X-Definite-Hosted-Signup-Token'?: (string | null) | undefined, body: HostedSignupRequest};

export type CreateApiOnpremV1HostedSignupsOptions = {baseUrl: string, fetch?: typeof fetch | undefined};

export const hostedSignupResponse = z.object({signup_id: z.union([z.string(), z.string()]), status_token: z.string(), status: z.enum(["email_pending", "approval_pending", "accepted", "rejected", "converted"]), hosting_mode: z.enum(["definite_cloud", "self_hosted"]), email_domain_kind: z.enum(["unknown", "business", "free"]), approval_status: z.enum(["not_required", "pending", "approved", "rejected"])});

export const responseMeta = z.object({requestId: z.string().optional(), timestamp: z.string().optional(), durationMs: z.number().int().nullable().optional()});

export const successResponseHostedSignupResponse = z.object({success: z.literal(true), data: hostedSignupResponse, meta: responseMeta.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 Definite signup and send an email verification code
 * 
 * POST /onprem/v1/hosted-signups
 */
export const createApiOnpremV1HostedSignups = async (args: CreateApiOnpremV1HostedSignupsArgs, options: CreateApiOnpremV1HostedSignupsOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

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

if (args['X-Definite-Hosted-Signup-Token'] != null) headers.set("X-Definite-Hosted-Signup-Token", String(args['X-Definite-Hosted-Signup-Token']))

const url = `${baseUrl.replace(/\/+$/, '')}/onprem/v1/hosted-signups${query.size > 0 ? `?${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(successResponseHostedSignupResponse, await res.json())
};