import {z} from 'zod'

export type ApiStrategyOrderType = 'limit' | 'dca' | 'vca';

export type ApiTokenAddress = {blockchain: string, address: string};

export type ApiJson = {[key: string]: unknown};

export type ApiStrategyOrderCreationRequest = {type: ApiStrategyOrderType, token_from: ApiTokenAddress, token_to: ApiTokenAddress, input_amount: string, settings: ApiJson, max_suborders: number, max_invocations: number, slippage: number, referral_name?: string | undefined};

export type CreateApiV1StrategiesAddressOrderArgs = {address: string, 'x-verify': string, body: ApiStrategyOrderCreationRequest};

export type CreateApiV1StrategiesAddressOrderOptions = {baseUrl?: string | undefined, ApiKey?: string | undefined, fetch?: typeof fetch | undefined};

export const apiExtraCurrency = z.object({id: z.number().int(), amount: z.string()});

export const apiTransactionBoc = z.object({payload_cell: z.string(), address: z.string(), value: z.string(), state_init: z.string().optional(), extra: z.array(apiExtraCurrency).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
};

/**
 * Get pre-built transaction for strategy order creation
 * 
 * POST /v1/strategies/{address}/order
 */
export const createApiV1StrategiesAddressOrder = async (args: CreateApiV1StrategiesAddressOrderArgs, options?: CreateApiV1StrategiesAddressOrderOptions) => {
const {baseUrl = "https://backend.swap.coffee", fetch: fetchFn = fetch, ApiKey} = options ?? {}

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

if (args['x-verify'] != null) headers.set("x-verify", String(args['x-verify']))
if (ApiKey !== undefined) headers.set("X-Api-Key", ApiKey)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/strategies/${encodeURIComponent(String(args.address))}/order${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(apiTransactionBoc, await res.json())
};