import {z} from 'zod'

export type BodyDTO = {type?: string | undefined, format?: string | undefined, data?: string | undefined, fields?: {[key: string]: Record<string, never>} | undefined};

export type RequestDTO = {id?: string | undefined, endpoint?: string | undefined, method?: string | undefined, header?: {[key: string]: string} | undefined, body?: BodyDTO | undefined};

export type ResultDTO = {id?: string | undefined, status?: string | undefined, header?: {[key: string]: string} | undefined, body?: BodyDTO | undefined};

export type ResponseDTO = {id?: string | undefined, name?: string | undefined, success?: ResultDTO | undefined, fail?: ResultDTO | undefined};

export type FunctionDTO = {name?: string | undefined, type?: string | undefined, request?: RequestDTO | undefined, response?: ResponseDTO | undefined};

export type InvokerDTO = {name?: string | undefined, description?: string | undefined, hint?: string | undefined, icon?: string | undefined, authType?: string | undefined, requiredData?: {[key: string]: string} | undefined, operations?: Array<FunctionDTO> | undefined, hasManualSync?: boolean | undefined};

export type BLsvgItem = {id?: number | undefined, name?: string | undefined, axisX?: number | undefined, axisY?: number | undefined, items?: string | undefined, getbLayout?: BusinessLayout | undefined};

export type BLarrow = {from?: number | undefined, to?: number | undefined, getbLayout?: BusinessLayout | undefined};

export type BusinessLayout = {id?: number | undefined, name?: string | undefined, svgItems?: Array<BLsvgItem> | undefined, arrows?: Array<BLarrow> | undefined};

export type MethodConnectorDTO = {connectorId?: number | undefined, title?: string | undefined, invoker?: string | undefined};

export type MethodDTO = {id?: string | undefined, index?: string | undefined, name?: string | undefined, color?: string | undefined, label?: string | undefined, methodType?: ('CONNECTOR' | 'HTTP_REQUEST' | 'WEBHOOK') | undefined, dataAggregator?: number | undefined, request?: RequestDTO | undefined, response?: ResponseDTO | undefined, connector?: MethodConnectorDTO | undefined};

export type StatementDTO = {color?: string | undefined, field?: string | undefined, type?: string | undefined, rightPropertyValue?: string | undefined};

export type ConditionDTO = {relationalOperator?: string | undefined, leftStatement?: StatementDTO | undefined, rightStatement?: StatementDTO | undefined};

export type OperatorDTO = {id?: string | undefined, type?: string | undefined, index?: string | undefined, iterator?: string | undefined, condition?: ConditionDTO | undefined, uiId?: string | undefined, expression?: string | undefined};

export type ConnectorDTO = {connectorId?: number | undefined, title?: string | undefined, icon?: string | undefined, sslCert?: boolean | undefined, timeout?: number | undefined, invoker?: InvokerDTO | undefined, businessLayout?: BusinessLayout | undefined, methods?: Array<MethodDTO> | undefined, operators?: Array<OperatorDTO> | undefined};

export type LinkedFieldDTO = {color?: string | undefined, type?: string | undefined, field?: string | undefined};

export type CodeDTO = {name?: string | undefined, value?: string | undefined, type?: string | undefined};

export type SimpleCodeDTO = {pointer?: number | undefined, code?: Array<CodeDTO> | undefined};

export type EnhancementDTO = {title?: string | undefined, description?: string | undefined, script?: string | undefined, args?: string | undefined, simpleCode?: SimpleCodeDTO | undefined, language?: string | undefined};

export type FieldBindingDTO = {id?: string | undefined, enhancementId?: number | undefined, from?: Array<LinkedFieldDTO> | undefined, enhancement?: EnhancementDTO | undefined, to?: Array<LinkedFieldDTO> | undefined};

export type BLayoutArrowResource = {from?: number | undefined, to?: number | undefined};

export type BLayoutSvgItemResource = {id?: number | undefined, name?: string | undefined, x?: number | undefined, y?: number | undefined, items?: Array<string> | undefined};

export type BusinessLayoutResource = {id?: number | undefined, arrows?: Array<BLayoutArrowResource> | undefined, svgItems?: Array<BLayoutSvgItemResource> | undefined};

export type ConnectionDTO = {id?: string | undefined, connectionId?: number | undefined, title?: string | undefined, description?: string | undefined, icon?: string | undefined, fromConnector?: ConnectorDTO | undefined, toConnector?: ConnectorDTO | undefined, fieldBinding?: Array<FieldBindingDTO> | undefined, businessLayout?: BusinessLayoutResource | undefined, categoryId?: number | undefined, ui?: {[key: string]: Record<string, never>} | undefined};

export type CreateApiConnectionValidateArgs = {body: ConnectionDTO};

export type CreateApiConnectionValidateOptions = {baseUrl?: string | undefined, bearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const createApiConnectionValidateResponse = z.object({});

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
};

/**
 * Validates a connection for correctly constructed structure
 * 
 * POST /connection/validate
 */
export const createApiConnectionValidate = async (args: CreateApiConnectionValidateArgs, options?: CreateApiConnectionValidateOptions) => {
const {baseUrl = "http://localhost:9090", 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 (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/connection/validate${query.size > 0 ? `?${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(createApiConnectionValidateResponse, await res.json())
};