import {z} from 'zod'

export type GetApiV2AccountsAccountIdStakeholdersStakeholderIdDocumentsArgs = {account_id: string, stakeholder_id: string};

export type GetApiV2AccountsAccountIdStakeholdersStakeholderIdDocumentsOptions = {baseUrl?: string | undefined, basicAuth?: {username: string, password: string} | undefined, fetch?: typeof fetch | undefined};

export const stakeholderDocument = z.object({individual_proof_of_address: z.array(z.object({type: z.enum(["aadhar_front", "aadhar_back", "passport_front", "passport_back", "voter_id_front", "voter_id_back"]).optional(), url: z.string().optional(), document_id: z.string().optional()})).optional(), individual_proof_of_identification: z.array(z.object({type: z.literal("personal_pan").optional(), url: z.string().optional(), document_id: z.string().optional()})).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
};

/**
 * Fetch KYC documents for a stakeholder
 * 
 * GET /v2/accounts/{account_id}/stakeholders/{stakeholder_id}/documents
 */
export const getApiV2AccountsAccountIdStakeholdersStakeholderIdDocuments = async (args: GetApiV2AccountsAccountIdStakeholdersStakeholderIdDocumentsArgs, options?: GetApiV2AccountsAccountIdStakeholdersStakeholderIdDocumentsOptions) => {
const {baseUrl = "https://api.razorpay.com/v1", fetch: fetchFn = fetch, basicAuth} = options ?? {}

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

if (basicAuth !== undefined) headers.set('authorization', `Basic ${btoa(`${basicAuth.username}:${basicAuth.password}`)}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v2/accounts/${encodeURIComponent(String(args.account_id))}/stakeholders/${encodeURIComponent(String(args.stakeholder_id))}/documents${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "GET", headers})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(stakeholderDocument, await res.json())
};