import {z} from 'zod'

export type TimeSensitivity = 'MOST_RECENT' | 'DURING_AUDIT_WINDOW';

export type CadenceType = 'P0D' | 'P1D' | 'P1W' | 'P1M' | 'P3M' | 'P6M' | 'P1Y' | 'P2Y';

export type ReminderWindow = 'P0D' | 'P1D' | 'P1W' | 'P1M' | 'P3M';

export type CreateDocumentInput = {title: string, description: string, timeSensitivity: TimeSensitivity, cadence: CadenceType, reminderWindow: ReminderWindow, isSensitive: boolean};

export type CreateApiDocumentsArgs = {body: CreateDocumentInput};

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

export const documentAndTestCategory = z.enum(["Accounts access", "Account security", "Account setup", "Computers", "Custom", "Data storage", "Employees", "Infrastructure", "IT", "Logging", "Monitoring alerts", "People", "Policies", "Risk analysis", "Software development", "CSPM alert management", "Vendors", "Vulnerability management"]);

export const documentStatus = z.enum(["Needs document", "Needs update", "Not relevant", "OK"]);

export const document = z.object({id: z.string(), ownerId: z.string().nullable(), category: documentAndTestCategory, description: z.string(), isSensitive: z.boolean(), title: z.string(), uploadStatus: documentStatus, uploadStatusDate: z.string().nullable(), url: 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
};

/**
 * Create a custom document
 * 
 * POST /documents
 */
export const createApiDocuments = async (args: CreateApiDocumentsArgs, options?: CreateApiDocumentsOptions) => {
const {baseUrl = "https://api.vanta.com", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/documents${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers, body: JSON.stringify(args.body)})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(document, await res.json())
};