import {z} from 'zod'

export type GetApiVulnerabilitiesVulnerabilityIdArgs = {vulnerabilityId: string};

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

export const vulnerabilityType = z.enum(["CONFIGURATION", "COMMON", "GROUPED"]);

export const externalFindingSeverityType = z.enum(["CRITICAL", "HIGH", "LOW", "MEDIUM"]);

export const vulnerability = z.object({id: z.string(), name: z.string(), description: z.string(), integrationId: z.string(), packageIdentifier: z.string().nullable(), vulnerabilityType: vulnerabilityType, targetId: z.string(), firstDetectedDate: z.string(), sourceDetectedDate: z.string().nullable(), lastDetectedDate: z.string().nullable(), severity: externalFindingSeverityType, cvssSeverityScore: z.number().nullable(), scannerScore: z.number().nullable(), isFixable: z.boolean(), remediateByDate: z.string().nullable(), relatedVulns: z.array(z.string()), relatedUrls: z.array(z.string()), externalURL: z.string(), scanSource: z.string().optional(), deactivateMetadata: z.object({isVulnDeactivatedIndefinitely: z.boolean(), deactivatedUntilDate: z.string().nullable(), deactivationReason: z.string(), deactivatedOnDate: z.string(), deactivatedBy: z.string()}).nullable(), fixedVersion: z.string().nullable(), externalId: z.string().nullable()});

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 vulnerability by ID
 * 
 * GET /vulnerabilities/{vulnerabilityId}
 */
export const getApiVulnerabilitiesVulnerabilityId = async (args: GetApiVulnerabilitiesVulnerabilityIdArgs, options?: GetApiVulnerabilitiesVulnerabilityIdOptions) => {
const {baseUrl = "https://api.vanta.com", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/vulnerabilities/${encodeURIComponent(String(args.vulnerabilityId))}${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(vulnerability, await res.json())
};