import {z} from 'zod'

export type GetApiApprovalRuleArgs = {page?: number | undefined, pageSize?: number | undefined, sort?: string | undefined};

export type GetApiApprovalRuleOptions = {baseUrl: string, APIToken?: string | undefined, fetch?: typeof fetch | undefined};

export const approver = z.object({id: z.string().optional(), version: z.string().optional(), createdDate: z.number().int().optional(), groupId: z.string().optional(), lastModifiedDate: z.number().int().optional(), personId: z.string().optional(), positionNumber: z.number().int().optional()});

export const approvalRule = z.object({id: z.string().optional(), version: z.string().optional(), active: z.boolean().optional(), approvers: z.array(approver).optional(), conditionAmount: z.string().optional(), conditionType: z.enum(["HEADER_DISCOUNT_FROM", "HEADER_SURCHARGE_FROM", "ITEM_DISCOUNT_FROM", "MARGIN_AMOUNT_FROM", "MARGIN_PERCENTAGE_FROM", "TOTAL_GROSS_AMOUNT_FROM", "TOTAL_NET_AMOUNT_FROM"]).optional(), createdDate: z.number().int().optional(), event: z.enum(["PURCHASE_INVOICE_CHECKED", "PURCHASE_INVOICE_ENTRY_COMPLETED", "PURCHASE_INVOICE_OPEN_ITEM_CREATED", "PURCHASE_INVOICE_VERIFICATION_STARTED", "PURCHASE_ORDER_CONFIRMED", "PURCHASE_ORDER_DOCUMENTS_PRINTED", "PURCHASE_ORDER_ENTRY_COMPLETED", "QUOTATION_ENTRY_COMPLETED", "SALES_ORDER_ORDER_CONFIRMATION_PRINTED"]), lastModifiedDate: z.number().int().optional(), name: z.string().optional(), requesterGroupId: z.string().optional(), requesterPersonId: z.string().optional()});

export const getApiApprovalRuleResponse = z.object({result: z.array(approvalRule).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
};

/**
 * query approvalRule
 * 
 * GET /approvalRule
 */
export const getApiApprovalRule = async (args: GetApiApprovalRuleArgs, options: GetApiApprovalRuleOptions) => {
const {baseUrl, fetch: fetchFn = fetch, APIToken} = options ?? {}

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

if (args.page != null) query.append("page", String(args.page))
if (args.pageSize != null) query.append("pageSize", String(args.pageSize))
if (args.sort != null) query.append("sort", String(args.sort))
if (APIToken !== undefined) headers.set("AuthenticationToken", APIToken)

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

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

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

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