import {z} from 'zod'

export type GetApiApiV2ThreatFeedEventsArgs = {search_key: string, page_number?: number | undefined, page_size?: (10 | 20 | 30 | 50 | 100 | 250) | undefined};

export type GetApiApiV2ThreatFeedEventsOptions = {baseUrl?: string | undefined, OAuthv2?: string | undefined, fetch?: typeof fetch | undefined};

export const threatFeedEvent = z.object({EventId: z.string().optional(), SchemaVersion: z.string().optional(), LifecycleState: z.enum(["Active", "Merged", "Retracted", "Superseded"]).optional(), MergedInto: z.string().nullable().optional(), EventType: z.enum(["Data Breach", "Ransomware", "Vulnerability", "Advisory", "Hacktivist", "Social", "Incident", "Credential Exposure", "Data Leak", "Threat Actor Activity", "Research Report"]).optional(), Severity: z.enum(["Informational", "Low", "Medium", "High", "Critical"]).nullable().optional(), Title: z.string().nullable().optional(), Companies: z.array(z.object({CompanyId: z.number().nullable().optional(), CompanyName: z.string().nullable().optional(), Domain: z.string().nullable().optional(), Role: z.enum(["Affected", "Producer", "Publisher", "Mentioned"]).optional(), CountryCode: z.string().nullable().optional(), Industry: z.string().nullable().optional(), NaicsCode: z.string().nullable().optional()})).optional(), Summary: z.string().nullable().optional(), Links: z.array(z.string()).optional(), FeedMentionCount: z.number().optional(), AffectedProducts: z.array(z.object({ProductName: z.string().optional(), ProductId: z.number().nullable().optional(), Cpes: z.array(z.string()).optional()})).optional(), Vulnerabilities: z.array(z.object({Cve: z.string().optional(), VulnerabilityId: z.number().nullable().optional()})).optional(), FocusTags: z.array(z.string()).optional(), ThreatActors: z.array(z.string()).optional(), Advisories: z.object({summary: z.string().nullable().optional(), cisa_advisory: z.string().nullable().optional(), recommendations: z.array(z.string()).optional(), other_advisories: z.array(z.string()).optional(), vendor_advisories: z.array(z.string()).optional()}).and(z.record(z.string(), z.unknown())).nullable().optional(), EventDate: z.string().optional(), FirstSeenDate: z.string().optional(), UpdateDate: z.string().optional()});

export const getApiApiV2ThreatFeedEventsResponse = z.array(threatFeedEvent);

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 the list of Cyber Threat Feed events.
 * 
 * GET /api/v2/threat-feed-events
 */
export const getApiApiV2ThreatFeedEvents = async (args: GetApiApiV2ThreatFeedEventsArgs, options?: GetApiApiV2ThreatFeedEventsOptions) => {
const {baseUrl = "https://app.blackkitetech.com", fetch: fetchFn = fetch, OAuthv2} = options ?? {}

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

if (args.search_key != null) query.append("search_key", String(args.search_key))
if (args.page_number != null) query.append("page_number", String(args.page_number))
if (args.page_size != null) query.append("page_size", String(args.page_size))
if (OAuthv2 !== undefined) headers.set('authorization', `Bearer ${OAuthv2}`)

const url = `${baseUrl.replace(/\/+$/, '')}/api/v2/threat-feed-events${query.size > 0 ? `?${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(getApiApiV2ThreatFeedEventsResponse, await res.json())
};