import {z} from 'zod'

export type GetApiVendorsArgs = {include_ad_hoc_reports?: boolean | undefined, page_token?: string | undefined, page_size?: number | undefined, labels?: Array<string> | undefined, include_risks?: boolean | undefined};

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

export const categoryScores = z.object({attackSurface: z.number().int().optional(), brandProtection: z.number().int().optional(), brandReputation: z.number().int().optional(), dataLeakage: z.number().int().optional(), dns: z.number().int().optional(), emailSecurity: z.number().int().optional(), encryption: z.number().int().optional(), ipDomainReputation: z.number().int().optional(), networkSecurity: z.number().int().optional(), operationalRisk: z.number().int().optional(), phishing: z.number().int().optional(), questionnaires: z.number().int().optional(), vulnerabilityManagement: z.number().int().optional(), websiteSecurity: z.number().int().optional()});

export const vendorsRisk = z.object({category: z.string().optional(), description: z.string().optional(), finding: z.string().optional(), id: z.string().optional(), riskSubtype: z.string().optional(), riskType: z.string().optional(), severity: z.string().optional()});

export const monitoredVendor = z.object({assessmentStatus: z.string().optional(), attributes: z.record(z.string(), z.string()).optional(), automatedScore: z.number().int().optional(), category_scores: categoryScores.optional(), id: z.number().int().optional(), labels: z.array(z.string()).optional(), lastAssessed: z.string().optional(), lifecycle_stage: z.string().optional(), monitored: z.boolean().optional(), name: z.string().optional(), overallScore: z.number().int().optional(), primary_hostname: z.string().optional(), questionnaireScore: z.number().int().optional(), risks: z.array(vendorsRisk).optional(), score: z.number().int().optional(), tier: z.number().int().optional()});

export const vendorsResponsePayloadBody = z.object({next_page_token: z.string().optional(), total_results: z.number().int().optional(), vendors: z.array(monitoredVendor).optional()});

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
};

/**
 * List monitored vendors
 * 
 * GET /vendors
 */
export const getApiVendors = async (args: GetApiVendorsArgs, options?: GetApiVendorsOptions) => {
const {baseUrl = "https://cyber-risk.upguard.com/api/public", fetch: fetchFn = fetch, APIKeyInHeader} = options ?? {}

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

if (args.include_ad_hoc_reports != null) query.append("include_ad_hoc_reports", String(args.include_ad_hoc_reports))
if (args.page_token != null) query.append("page_token", String(args.page_token))
if (args.page_size != null) query.append("page_size", String(args.page_size))
for (const item of args.labels ?? []) query.append("labels", String(item))
if (args.include_risks != null) query.append("include_risks", String(args.include_risks))
if (APIKeyInHeader !== undefined) headers.set("Authorization", APIKeyInHeader)

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