import {z} from 'zod'

export type CreateApiConsentV3SiteIdTcstringArgs = {siteId: number, consentUUID?: string | undefined, body: {euconsent: string}};

export type CreateApiConsentV3SiteIdTcstringOptions = {baseUrl?: string | undefined, fetch?: typeof fetch | undefined};

export const mergeConsent = z.object({userConsentRecord: z.object({categories: z.array(z.string()).optional(), legIntCategories: z.array(z.string()).optional(), vendors: z.array(z.string()).optional(), legIntVendors: z.array(z.string()).optional(), id: z.string().optional(), consentUUID: z.string().optional(), siteId: z.number().int().optional(), euconsent: z.string().optional(), vendorListId: z.string().optional(), fromNetId: z.boolean().optional(), dateCreated: z.string().optional(), __v: z.number().int().optional()}).optional(), appendedConsentUUID: 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
};

/**
 * Merge end-user consent status with identity provider
 * 
 * POST /consent/v3/{siteId}/tcstring
 */
export const createApiConsentV3SiteIdTcstring = async (args: CreateApiConsentV3SiteIdTcstringArgs, options?: CreateApiConsentV3SiteIdTcstringOptions) => {
const {baseUrl = "https://cdn.privacy-mgmt.com/consent/tcfv2", 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.consentUUID != null) query.append("consentUUID", String(args.consentUUID))

const url = `${baseUrl.replace(/\/+$/, '')}/consent/v3/${encodeURIComponent(String(args.siteId))}/tcstring${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(mergeConsent, await res.json())
};