import {z} from 'zod'

export type GetApiV1VerificationGstinAdvancedArgs = {gstin_number: string};

export type GetApiV1VerificationGstinAdvancedOptions = {baseUrl: string, Oauth2ClientCredentials?: string | undefined, fetch?: typeof fetch | undefined};

export const gstinAdvContactPrinciple = z.object({address: z.string().optional(), email: z.string().optional(), mobile: z.string().optional(), nature_of_business: z.string().optional()});

export const gstinAdvContactDetails = z.object({principal: gstinAdvContactPrinciple.optional(), additional: z.unknown()});

export const gstinAdvVerificationData = z.object({contact_details: gstinAdvContactDetails, promoters: z.array(z.string()), annual_turnover: z.string().optional(), annual_turnover_fy: z.string().optional(), percentage_in_cash_fy: z.string().optional(), percentage_in_cash: z.string().optional(), aadhaar_validation: z.string().optional(), aadhaar_validation_date: z.string().optional(), address_details: z.object({}), gstin: z.string(), pan_number: z.string(), business_name: z.string().optional(), legal_name: z.string().optional(), center_jurisdiction: z.string().optional(), state_jurisdiction: z.string().optional(), date_of_registration: z.string().optional(), constitution_of_business: z.string().optional(), taxpayer_type: z.string().optional(), gstin_status: z.string().optional(), date_of_cancellation: z.string().optional(), field_visit_conducted: z.string().optional(), nature_bus_activities: z.array(z.string()), nature_of_core_business_activity_code: z.string(), nature_of_core_business_activity_description: z.string(), filing_status: z.array(z.unknown()), address: z.unknown(), hsn_info: z.object({}), filing_frequency: z.array(z.unknown())});

export const rESPONSEGSTINADVANCEDVERIFICATION = z.object({code: z.number().int(), timestamp: z.number().int().optional(), transaction_id: z.string().optional(), sub_code: z.string().optional(), message: z.string(), data: gstinAdvVerificationData.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
};

/**
 * Gstin Advanced Verification
 * 
 * GET /v1/verification/gstin-advanced
 */
export const getApiV1VerificationGstinAdvanced = async (args: GetApiV1VerificationGstinAdvancedArgs, options: GetApiV1VerificationGstinAdvancedOptions) => {
const {baseUrl, fetch: fetchFn = fetch, Oauth2ClientCredentials} = options ?? {}

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

if (args.gstin_number != null) query.append("gstin_number", String(args.gstin_number))
if (Oauth2ClientCredentials !== undefined) headers.set('authorization', `Bearer ${Oauth2ClientCredentials}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/verification/gstin-advanced${query.size > 0 ? `?${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(rESPONSEGSTINADVANCEDVERIFICATION, await res.json())
};