import {z} from 'zod'

export type ApplicationOrder = 'PARALLEL' | 'CASCADING';

export type RoundingMode = 'HALF_UP' | 'BANKERS' | 'FLOOR' | 'CEIL' | 'TRUNCATE';

export type StructureType = 'FLAT' | 'PERCENTAGE' | 'TIERED';

export type CreateFeeScheduleItemRequest = {name: string, priority?: number | undefined, structureType: StructureType, structure: {[key: string]: unknown}};

export type CreateFeeScheduleRequest = {name: string, currency: string, applicationOrder: ApplicationOrder, roundingScale?: number | undefined, roundingMode?: RoundingMode | undefined, items: Array<CreateFeeScheduleItemRequest>};

export type CreateApiV1FeeSchedulesArgs = {'X-Request-Id'?: string | undefined, 'X-Idempotency-Key'?: string | undefined, body: CreateFeeScheduleRequest};

export type CreateApiV1FeeSchedulesOptions = {baseUrl?: string | undefined, BearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const applicationOrder = z.enum(["PARALLEL", "CASCADING"]);

export const roundingMode = z.enum(["HALF_UP", "BANKERS", "FLOOR", "CEIL", "TRUNCATE"]);

export const structureType = z.enum(["FLAT", "PERCENTAGE", "TIERED"]);

export const feeScheduleItemResponse = z.object({id: z.string().optional(), name: z.string().optional(), priority: z.number().int().optional(), structureType: structureType.optional(), structure: z.record(z.string(), z.unknown()).optional(), createdAt: z.string().optional(), updatedAt: z.string().optional()});

export const feeScheduleResponse = z.object({id: z.string().optional(), tenantId: z.string().optional(), name: z.string().max(100).optional(), currency: z.string().optional(), applicationOrder: applicationOrder.optional(), roundingScale: z.number().int().optional(), roundingMode: roundingMode.optional(), items: z.array(feeScheduleItemResponse).optional(), createdAt: z.string().optional(), updatedAt: 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
};

/**
 * Create a fee schedule
 * 
 * POST /v1/fee-schedules
 */
export const createApiV1FeeSchedules = async (args: CreateApiV1FeeSchedulesArgs, options?: CreateApiV1FeeSchedulesOptions) => {
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${query.size > 0 ? `?${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(feeScheduleResponse, await res.json())
};