import {z} from 'zod'

export type CreateApiFetchCFSOptions = {baseUrl?: string | undefined, basic?: {username: string, password: string} | undefined, fetch?: typeof fetch | undefined};

export const createApiFetchCFSResponse = z.object({response: z.object({node: z.string().min(1).optional(), startRow: z.number().optional(), data: z.array(z.object({version: z.number().optional(), typedId: z.string().min(1).optional(), targetDate: z.string().min(1).optional(), label: z.string().min(1).optional(), locale: z.unknown(), calculationMessages: z.string().min(1).optional(), numberOfItems: z.number().optional(), keepManualOverrides: z.boolean().optional(), writeOnlyChangedItems: z.boolean().optional(), configuration: z.string().min(1).optional(), relativeTargetDateDays: z.unknown(), numberOfFailedItems: z.number().optional(), userGroupEdit: z.unknown(), userGroupViewDetails: z.unknown(), createDate: z.string().min(1).optional(), createdBy: z.number().optional(), lastUpdateDate: z.string().min(1).optional(), lastUpdateBy: z.number().optional(), status: z.string().min(1).optional(), calculationStartDate: z.string().min(1).optional(), calculationDate: z.string().min(1).optional()})).optional(), endRow: z.number().optional(), totalRows: z.number().optional(), status: z.number().optional()}).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
};

/**
 * List Calculated Field Sets
 * 
 * POST /fetch/CFS
 * 
 * Also accepts auth: X-PriceFx-jwt
 */
export const createApiFetchCFS = async (options?: CreateApiFetchCFSOptions) => {
const {baseUrl = "https://companynode.pricefx.com/pricefx/companypartition", fetch: fetchFn = fetch, basic} = options ?? {}

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

if (basic !== undefined) headers.set('authorization', `Basic ${btoa(`${basic.username}:${basic.password}`)}`)

const url = `${baseUrl.replace(/\/+$/, '')}/fetch/CFS${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(createApiFetchCFSResponse, await res.json())
};