import {z} from 'zod'

export type CreateJobPost = {title?: string | undefined, salary_range?: string | undefined, job_type?: string | undefined, location?: string | undefined, deadline?: string | undefined, job_mode?: string | undefined, experience_level?: string | undefined, benefits?: string | undefined, company_name?: string | undefined, description?: string | undefined, key_responsibilities?: string | undefined, qualifications?: string | undefined};

export type CreateApiJobsArgs = {body: CreateJobPost};

export type CreateApiJobsOptions = {baseUrl?: string | undefined, bearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const jobPost = z.object({id: z.string().optional(), title: z.string().optional(), salary_range: z.string().optional(), job_type: z.string().optional(), location: z.string().optional(), deadline: z.string().optional(), job_mode: z.string().optional(), experience_level: z.string().optional(), how_to_apply: z.string().optional(), benefits: z.string().optional(), company_name: z.string().optional(), description: z.string().optional(), key_responsibilities: z.string().optional(), qualifications: z.string().optional(), created_at: z.string().optional(), updated_at: z.string().optional()});

export const jobPostResponse = z.object({status: z.string().optional(), status_code: z.number().int().optional(), message: z.string().optional(), data: jobPost.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
};

/**
 * Create a new job post
 * 
 * POST /jobs
 */
export const createApiJobs = async (args: CreateApiJobsArgs, options?: CreateApiJobsOptions) => {
const {baseUrl = "https://staging.api-golang.boilerplate.hng.tech/api/v1", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

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

const res = await fetchFn(url, {method: "POST", headers, body: JSON.stringify(args.body)})

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

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