import {z} from 'zod'

export type SimulateFeeRequest = {grossAmount: string, currency: string};

export type CreateApiV1FeeSchedulesScheduleIdSimulateArgs = {'X-Request-Id'?: string | undefined, scheduleId: string, 'X-Idempotency-Key'?: string | undefined, body: SimulateFeeRequest};

export type CreateApiV1FeeSchedulesScheduleIdSimulateOptions = {baseUrl?: string | undefined, BearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const simulateFeeItem = z.object({name: z.string().optional(), fee: z.string().optional(), baseUsed: z.string().optional()});

export const simulateFeeResponse = z.object({grossAmount: z.string().optional(), netAmount: z.string().optional(), totalFee: z.string().optional(), currency: z.string().optional(), items: z.array(simulateFeeItem).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
};

/**
 * Simulate fee calculation
 * 
 * POST /v1/fee-schedules/{scheduleId}/simulate
 */
export const createApiV1FeeSchedulesScheduleIdSimulate = async (args: CreateApiV1FeeSchedulesScheduleIdSimulateArgs, options?: CreateApiV1FeeSchedulesScheduleIdSimulateOptions) => {
const {baseUrl = "https://identity.sandbox.lerian.net", fetch: fetchFn = fetch, BearerAuth} = options ?? {}

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

if (args['X-Request-Id'] != null) headers.set("X-Request-Id", String(args['X-Request-Id']))
if (args['X-Idempotency-Key'] != null) headers.set("X-Idempotency-Key", String(args['X-Idempotency-Key']))
if (BearerAuth !== undefined) headers.set('authorization', `Bearer ${BearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/fee-schedules/${encodeURIComponent(String(args.scheduleId))}/simulate${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(simulateFeeResponse, await res.json())
};