import {z} from 'zod'

export type GetApiApi3VulnerabilitiesArgs = {page?: number | undefined, size?: number | undefined, sort?: Array<string> | undefined};

export type GetApiApi3VulnerabilitiesOptions = {baseUrl?: string | undefined, fetch?: typeof fetch | undefined};

export const link = z.object({deprecation: z.string().optional(), href: z.string().optional(), hreflang: z.string().optional(), media: z.string().optional(), rel: z.string().optional(), title: z.string().optional(), type: z.string().optional()});

export const pageMetadata = z.object({number: z.number().int().optional(), size: z.number().int().optional(), totalPages: z.number().int().optional(), totalResources: z.number().int().optional()});

export const vulnerabilityCvssV2 = z.object({accessComplexity: z.enum(["LOW", "MEDIUM", "HIGH"]).optional(), accessVector: z.enum(["LOCAL", "ADJACENT", "NETWORK"]).optional(), authentication: z.enum(["NONE", "SINGLE", "MULTIPLE"]).optional(), availabilityImpact: z.enum(["NONE", "PARTIAL", "COMPLETE"]).optional(), confidentialityImpact: z.enum(["NONE", "PARTIAL", "COMPLETE"]).optional(), exploitScore: z.number().optional(), impactScore: z.number().optional(), integrityImpact: z.enum(["NONE", "PARTIAL", "COMPLETE"]).optional(), score: z.number().optional(), vector: z.string().optional()});

export const vulnerabilityCvssV3 = z.object({attackComplexity: z.enum(["LOW", "HIGH"]).optional(), attackVector: z.enum(["NETWORK", "ADJACENT", "LOCAL", "PHYSICAL"]).optional(), availabilityImpact: z.enum(["NONE", "LOW", "HIGH"]).optional(), confidentialityImpact: z.enum(["NONE", "LOW", "HIGH"]).optional(), exploitScore: z.number().optional(), impactScore: z.number().optional(), integrityImpact: z.enum(["NONE", "LOW", "HIGH"]).optional(), privilegeRequired: z.enum(["NONE", "LOW", "HIGH"]).optional(), scope: z.enum(["UNCHANGED", "CHANGED"]).optional(), score: z.number().optional(), userInteraction: z.enum(["NONE", "REQUIRED"]).optional(), vector: z.string().optional()});

export const vulnerabilityCvss = z.object({links: z.array(link), v2: vulnerabilityCvssV2.optional(), v3: vulnerabilityCvssV3.optional()});

export const contentDescription = z.object({html: z.string().optional(), text: z.string().optional()});

export const pCI = z.object({adjustedCVSSScore: z.number().int().optional(), adjustedSeverityScore: z.number().int().optional(), fail: z.boolean().optional(), specialNotes: z.string().optional(), status: z.enum(["Pass", "Fail"]).optional()});

export const vulnerability = z.object({added: z.string().optional(), categories: z.array(z.string()).optional(), cves: z.array(z.string()).optional(), cvss: vulnerabilityCvss.optional(), denialOfService: z.boolean().optional(), description: contentDescription.optional(), exploits: z.number().int().optional(), fixAvailable: z.boolean().optional(), id: z.object({}).optional(), links: z.array(link), malwareKits: z.number().int().optional(), modified: z.string().optional(), pci: pCI.optional(), published: z.string().optional(), riskScore: z.number().optional(), severity: z.enum(["Moderate", "Severe", "Critical"]).optional(), severityScore: z.number().int().optional(), title: z.string().optional()});

export const pagedModelVulnerability = z.object({links: z.array(link), page: pageMetadata.optional(), resources: z.array(vulnerability)});

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
};

/**
 * Vulnerabilities
 * 
 * GET /api/3/vulnerabilities
 */
export const getApiApi3Vulnerabilities = async (args: GetApiApi3VulnerabilitiesArgs, options?: GetApiApi3VulnerabilitiesOptions) => {
const {baseUrl = "https://<host>:<port>", fetch: fetchFn = fetch} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
headers.set('accept', "application/json;charset=UTF-8")

if (args.page != null) query.append("page", String(args.page))
if (args.size != null) query.append("size", String(args.size))
for (const item of args.sort ?? []) query.append("sort", String(item))

const url = `${baseUrl.replace(/\/+$/, '')}/api/3/vulnerabilities${query.size > 0 ? `?${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(pagedModelVulnerability, await res.json())
};