import {z} from 'zod'

export type GetApiV1GoogleJobsSearchArgs = {q: string, location?: (string | null) | undefined, gl?: string | undefined, country?: (string | null) | undefined, hl?: string | undefined, language?: (string | null) | undefined, domain?: string | undefined, job_type?: ('FULLTIME' | 'PARTTIME' | 'CONTRACTOR' | 'INTERN' | null) | undefined, date_posted?: ('today' | '3days' | 'week' | 'month' | null) | undefined, ltype?: ('remote' | 'hybrid' | 'onsite' | 'work_from_home' | null) | undefined, chips?: (string | null) | undefined, uds?: (string | null) | undefined, uule?: (string | null) | undefined, lrad?: (string | null) | undefined, next_page_token?: (string | null) | undefined, mode?: ('rpc' | 'serp') | undefined};

export type GetApiV1GoogleJobsSearchOptions = {baseUrl?: string | undefined, apiKey?: string | undefined, fetch?: typeof fetch | undefined};

export const jobSalary = z.object({min: z.string().nullable().optional(), max: z.string().nullable().optional(), currency: z.string().nullable().optional(), period: z.string().nullable().optional()});

export const jobApplyOption = z.object({source: z.string(), title: z.string().nullable().optional(), link: z.string()});

export const jobHighlights = z.object({qualifications: z.array(z.string()).optional(), responsibilities: z.array(z.string()).optional(), benefits: z.array(z.string()).optional()});

export const jobResult = z.object({title: z.string(), company_name: z.string(), location: z.string().nullable().optional(), via: z.string().nullable().optional(), url: z.string().nullable().optional(), description: z.string().nullable().optional(), salary: jobSalary.nullable().optional(), job_type: z.string().nullable().optional(), schedule_type: z.string().nullable().optional(), work_from_home: z.boolean().optional(), posted_at: z.string().nullable().optional(), thumbnail: z.string().nullable().optional(), apply_options: z.array(jobApplyOption).optional(), apply_links: z.array(z.string()).optional(), job_highlights: jobHighlights.nullable().optional(), extensions: z.array(z.string()).optional()});

export const jobFilterOption = z.object({label: z.string(), value: z.string().nullable().optional()});

export const jobFilter = z.object({name: z.string(), options: z.array(jobFilterOption).optional()});

export const pagination = z.object({current: z.union([z.number().int(), z.string()]).optional(), next: z.string().nullable().optional(), total_results: z.number().int().nullable().optional(), total_pages: z.number().int().nullable().optional(), page_no: z.record(z.string(), z.string()).optional()});

export const jobsSearchResponse = z.object({jobs: z.array(jobResult).optional(), jobs_results: z.array(jobResult).optional(), filters: z.array(jobFilter).optional(), pagination: pagination});

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 Google Jobs
 * 
 * GET /v1/google/jobs/search
 */
export const getApiV1GoogleJobsSearch = async (args: GetApiV1GoogleJobsSearchArgs, options?: GetApiV1GoogleJobsSearchOptions) => {
const {baseUrl = "https://scrapebadger.com", fetch: fetchFn = fetch, apiKey} = options ?? {}

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

if (args.q != null) query.append("q", String(args.q))
if (args.location != null) query.append("location", String(args.location))
if (args.gl != null) query.append("gl", String(args.gl))
if (args.country != null) query.append("country", String(args.country))
if (args.hl != null) query.append("hl", String(args.hl))
if (args.language != null) query.append("language", String(args.language))
if (args.domain != null) query.append("domain", String(args.domain))
if (args.job_type != null) query.append("job_type", String(args.job_type))
if (args.date_posted != null) query.append("date_posted", String(args.date_posted))
if (args.ltype != null) query.append("ltype", String(args.ltype))
if (args.chips != null) query.append("chips", String(args.chips))
if (args.uds != null) query.append("uds", String(args.uds))
if (args.uule != null) query.append("uule", String(args.uule))
if (args.lrad != null) query.append("lrad", String(args.lrad))
if (args.next_page_token != null) query.append("next_page_token", String(args.next_page_token))
if (args.mode != null) query.append("mode", String(args.mode))
if (apiKey !== undefined) headers.set("x-api-key", apiKey)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/google/jobs/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(jobsSearchResponse, await res.json())
};