import {z} from 'zod'

export type UpdatePositionRequest = {stopLossRate?: (number | null) | undefined, takeProfitRate?: (number | null) | undefined, stopLossType?: ('fixed' | 'trailing' | null) | undefined, clearStopLoss?: (boolean | null) | undefined, clearTakeProfit?: (boolean | null) | undefined};

export type PatchApiApiV2TradingPositionsPositionIdArgs = {'x-request-id': string, 'x-api-key': string, 'x-user-key': string, positionId: number, body: UpdatePositionRequest};

export type PatchApiApiV2TradingPositionsPositionIdOptions = {baseUrl?: string | undefined, oauth2?: string | undefined, fetch?: typeof fetch | undefined};

export const updatePositionResponse = z.object({operationId: z.string(), positionId: z.number().int(), referenceId: z.string()});

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
};

/**
 * Modify stop-loss and take-profit settings on an open position
 * 
 * PATCH /api/v2/trading/positions/{positionId}
 * 
 * Also accepts auth: oauth2
 */
export const patchApiApiV2TradingPositionsPositionId = async (args: PatchApiApiV2TradingPositionsPositionIdArgs, options?: PatchApiApiV2TradingPositionsPositionIdOptions) => {
const {baseUrl = "https://public-api.etoro.com", fetch: fetchFn = fetch, oauth2} = 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-api-key'] != null) headers.set("x-api-key", String(args['x-api-key']))
if (args['x-user-key'] != null) headers.set("x-user-key", String(args['x-user-key']))
if (oauth2 !== undefined) headers.set('authorization', `Bearer ${oauth2}`)

const url = `${baseUrl.replace(/\/+$/, '')}/api/v2/trading/positions/${encodeURIComponent(String(args.positionId))}${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "PATCH", 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(updatePositionResponse, await res.json())
};