import {z} from 'zod'

export type GetApiV2VulnerabilityIdTimelineArgs = {event_type?: (Array<'detected' | 'status_change' | 'resolved' | 'reopened' | 'severity_change' | 'template_released' | 'template_updated'>) | undefined};

export type GetApiV2VulnerabilityIdTimelineOptions = {baseUrl?: string | undefined, XAPIKey?: string | undefined, fetch?: typeof fetch | undefined};

export const timelineEvent = z.object({timestamp: z.string(), event_type: z.string(), old_value: z.string().optional(), new_value: z.string().optional(), description: z.string().optional()});

export const vulnTimelineResponse = z.object({template_released_at: z.string().optional(), template_updated_at: z.string().optional(), template_raw: z.string().optional(), first_detected_at: z.string().optional(), last_seen_at: z.string().optional(), current_status: z.string().optional(), events: z.array(timelineEvent).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 Vulnerability Timeline
 * 
 * GET /v2/vulnerability/{id}/timeline
 */
export const getApiV2VulnerabilityIdTimeline = async (args: GetApiV2VulnerabilityIdTimelineArgs, options?: GetApiV2VulnerabilityIdTimelineOptions) => {
const {baseUrl = "https://api.projectdiscovery.io", fetch: fetchFn = fetch, XAPIKey} = options ?? {}

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

if (args.event_type != null) query.append("event_type", args.event_type.join(','))
if (XAPIKey !== undefined) headers.set("X-API-Key", XAPIKey)

const url = `${baseUrl.replace(/\/+$/, '')}/v2/vulnerability/${encodeURIComponent(String(args.id))}/timeline${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(vulnTimelineResponse, await res.json())
};