import {z} from 'zod'

export type GetApiJobBoardsVacancyIdArgs = {vacancyId: string, limit?: number | undefined, cursor?: string | undefined, jobBoardProvider?: ('LINKEDIN' | 'SPOTT' | 'BROADBEAN' | 'IDIBU' | 'VDAB_VACATURE') | undefined};

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

export const jobBoardProvider = z.enum(["LINKEDIN", "SPOTT", "BROADBEAN", "IDIBU", "VDAB_VACATURE"]);

export const jobBoardPostingStatus = z.enum(["PUBLISHED", "CLOSED", "DRAFT"]);

export const dateISO = z.string();

export const jobBoardPostingDto = z.object({id: z.string(), jobBoardProvider: jobBoardProvider, status: jobBoardPostingStatus, publishedAt: dateISO.nullable(), unpublishedAt: dateISO.nullable(), closedAt: dateISO.nullable(), applyUrl: z.string().nullable(), targetStageId: z.string().nullable(), linkedInProjectUrl: z.string().nullable(), responseCount: z.number().nullable(), channel: z.string().nullable()});

export const jobBoardPostingsDto = z.object({jobBoardPostings: z.array(jobBoardPostingDto), pagination: z.object({cursor: z.string().nullable()})});

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
};

/**
 * Get job board postings for vacancy
 * 
 * GET /job-boards/{vacancyId}
 */
export const getApiJobBoardsVacancyId = async (args: GetApiJobBoardsVacancyIdArgs, options: GetApiJobBoardsVacancyIdOptions) => {
const {baseUrl, fetch: fetchFn = fetch, xApiKey} = options ?? {}

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

if (args.limit != null) query.append("limit", String(args.limit))
if (args.cursor != null) query.append("cursor", String(args.cursor))
if (args.jobBoardProvider != null) query.append("jobBoardProvider", String(args.jobBoardProvider))
if (xApiKey !== undefined) headers.set("x-api-key", xApiKey)

const url = `${baseUrl.replace(/\/+$/, '')}/job-boards/${encodeURIComponent(String(args.vacancyId))}${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(jobBoardPostingsDto, await res.json())
};