import {z} from 'zod'

export type GetApiRecruitmentCandidatesArgs = {pipeline_stage_id?: number | undefined, 'skills[]'?: string | undefined, 'vacancy_ids[]'?: number | undefined, email?: string | undefined, 'created_at[gte]'?: string | undefined, 'created_at[lte]'?: string | undefined, 'updated_at[gte]'?: string | undefined, 'updated_at[lte]'?: string | undefined, page?: number | undefined};

export type GetApiRecruitmentCandidatesOptions = {baseUrl?: string | undefined, XAPIKEY?: string | undefined, fetch?: typeof fetch | undefined};

export const reportingTo = z.object({id: z.number().int(), first_name: z.string().optional(), last_name: z.string().optional(), email: z.string()});

export const candidateSimple = z.object({id: z.string(), full_name: z.string(), email: z.string().optional(), phone_numbers: z.array(z.string()).optional(), date_of_birth: z.string().optional(), position: z.string().optional(), urls: z.array(z.string()).optional(), skills: z.array(z.string()).optional(), location: z.string().optional(), created_at: z.string().optional(), updated_at: z.string().optional(), gender: z.string().optional(), source: z.string().optional(), level: z.string().optional(), desired_salary: z.number().int().optional(), currency_code: z.string().optional(), last_contacted_at: z.string().optional(), cover_letter: z.string().optional(), resume: z.boolean().optional(), tags: z.array(z.string()).optional(), languages: z.array(z.object({id: z.number().int().optional(), code: z.string().optional(), level: z.string().optional()})).optional(), created_by: reportingTo.optional(), applications: z.array(z.object({id: z.number().int(), disqualified_at: z.string().optional(), vacancy: z.object({id: z.number().int().optional(), title: z.string().optional()}).optional(), pipeline_state: z.object({id: z.number().int().optional(), name: z.string().optional()}).optional(), disqualify_reason: z.object({id: z.number().int().optional(), name: z.string().optional()}).optional()})).optional()});

export const pagination = z.object({page: z.number().int().optional(), pages: z.number().int().optional(), count: z.number().int().optional(), items: z.number().int().optional()});

export const getApiRecruitmentCandidatesResponse = z.object({data: z.array(candidateSimple).optional(), metadata: pagination.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 candidates
 * 
 * GET /recruitment/candidates
 */
export const getApiRecruitmentCandidates = async (args: GetApiRecruitmentCandidatesArgs, options?: GetApiRecruitmentCandidatesOptions) => {
const {baseUrl = "https://app.peopleforce.io/api/public/v3", fetch: fetchFn = fetch, XAPIKEY} = options ?? {}

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

if (args.pipeline_stage_id != null) query.append("pipeline_stage_id", String(args.pipeline_stage_id))
if (args['skills[]'] != null) query.append("skills[]", String(args['skills[]']))
if (args['vacancy_ids[]'] != null) query.append("vacancy_ids[]", String(args['vacancy_ids[]']))
if (args.email != null) query.append("email", String(args.email))
if (args['created_at[gte]'] != null) query.append("created_at[gte]", String(args['created_at[gte]']))
if (args['created_at[lte]'] != null) query.append("created_at[lte]", String(args['created_at[lte]']))
if (args['updated_at[gte]'] != null) query.append("updated_at[gte]", String(args['updated_at[gte]']))
if (args['updated_at[lte]'] != null) query.append("updated_at[lte]", String(args['updated_at[lte]']))
if (args.page != null) query.append("page", String(args.page))
if (XAPIKEY !== undefined) headers.set("X-API-KEY", XAPIKEY)

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