import {z} from 'zod'

export type GetApiV1ScansVulnsHistoryArgs = {vuln_hash?: Array<string> | undefined, history_limit?: number | undefined};

export type GetApiV1ScansVulnsHistoryOptions = {baseUrl?: string | undefined, XAPIKey?: string | undefined, fetch?: typeof fetch | undefined};

export const vulnerabilityHistory = z.object({history_count: z.number().int(), history: z.array(z.object({severity: z.string().optional(), target: z.string().optional(), template_id: z.string().optional(), matched: z.boolean().optional(), timestamp: z.string().optional(), vuln_hash: z.string().optional(), event: z.string().optional()}))});

export const vulnerabilityHistoryDetail = z.record(z.string(), vulnerabilityHistory);

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 scan log stats of given scan id
 * 
 * GET /v1/scans/vulns/history
 */
export const getApiV1ScansVulnsHistory = async (args: GetApiV1ScansVulnsHistoryArgs, options?: GetApiV1ScansVulnsHistoryOptions) => {
const {baseUrl = "https://api.projectdiscovery.io", fetch: fetchFn = fetch, XAPIKey} = options ?? {}

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

for (const item of args.vuln_hash ?? []) query.append("vuln_hash", String(item))
if (args.history_limit != null) query.append("history_limit", String(args.history_limit))
if (XAPIKey !== undefined) headers.set("X-API-Key", XAPIKey)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/scans/vulns/history${query.size > 0 ? `?${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(vulnerabilityHistoryDetail, await res.json())
};