import {z} from 'zod'

export type DncValueType = 'all' | 'email' | 'domain';

export type GetApiV1DncItemSearchArgs = {search?: string | undefined, pageSize?: number | undefined, page?: number | undefined, type: DncValueType};

export type GetApiV1DncItemSearchOptions = {baseUrl: string, xApiKey?: string | undefined, fetch?: typeof fetch | undefined};

export const dncItems = z.object({id: z.string().optional(), value: z.string().optional(), type: z.string().optional(), createdAt: z.string().optional()});

export const dncList = z.object({id: z.string().optional(), name: z.string().optional(), numberOfItems: z.number().optional(), createdAt: z.string().optional(), updatedAt: z.string().optional(), addedBy: z.string().optional(), ownerId: z.string().optional(), dncItems: z.array(dncItems).optional()});

export const meta = z.object({totalItems: z.number().optional(), currentPage: z.number().optional(), itemsPerPage: z.number().optional(), totalPages: z.number().optional(), itemCount: z.number().optional()});

export const fetchDncListResponse = z.object({dncList: z.array(dncList).optional(), meta: meta.optional()});

export const fetchDncListResponseDto = z.object({message: z.string().optional(), payload: fetchDncListResponse.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
};

/**
 * Search DNC item across all lists
 * 
 * GET /v1/dnc/item/search
 */
export const getApiV1DncItemSearch = async (args: GetApiV1DncItemSearchArgs, options: GetApiV1DncItemSearchOptions) => {
const {baseUrl, fetch: fetchFn = fetch, xApiKey} = options ?? {}

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

if (args.search != null) query.append("search", String(args.search))
if (args.pageSize != null) query.append("pageSize", String(args.pageSize))
if (args.page != null) query.append("page", String(args.page))
if (args.type != null) query.append("type", String(args.type))
if (xApiKey !== undefined) headers.set("x-api-key", xApiKey)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/dnc/item/search${query.size > 0 ? `?${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(fetchDncListResponseDto, await res.json())
};