import {z} from 'zod'

export type GetApiBreachArgs = {id?: string | undefined};

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

export const breach = z.object({assignee_user_email: z.string().optional(), breach_status: z.string().optional(), breach_type: z.string().optional(), date_notified: z.string().optional(), date_occurred: z.string().optional(), date_published: z.string().optional(), description: z.string().optional(), domain: z.string().optional(), employee_count: z.number().int().optional(), exposed_data_classes: z.array(z.string()).optional(), id: z.number().int().optional(), name: z.string().optional(), severity: z.string().optional(), title: z.string().optional(), total_exposures: z.number().int().optional()});

export const breachComment = z.object({comment: z.string().optional(), created_at: z.string().optional(), created_by_email: z.string().optional()});

export const identityBreachResponsePayloadBody = z.object({breach: breach.optional(), comments: z.array(breachComment).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
};

/**
 * Get the details for an identity breach
 * 
 * GET /breach
 */
export const getApiBreach = async (args: GetApiBreachArgs, options?: GetApiBreachOptions) => {
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.id != null) query.append("id", String(args.id))
if (APIKeyInHeader !== undefined) headers.set("Authorization", APIKeyInHeader)

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