import {z} from 'zod'

export type GetApiApiOrgIdStatusPagesIdPreviewArgs = {org_id: string, id: string};

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

export const componentStatus = z.enum(["operational", "no_data", "maintenance", "degraded", "partial_outage", "major_outage"]);

export const currentComponent = z.object({key: z.string(), name: z.string(), status: componentStatus});

export const statusPageImpact = z.enum(["none", "degraded", "partial_outage", "major_outage"]);

export const noticeKind = z.enum(["incident", "maintenance", "info"]);

export const noticeState = z.enum(["scheduled", "active", "resolved"]);

export const publicNoticeUpdate = z.object({at: z.number().int(), body: z.string()});

export const publicNotice = z.object({body: z.string(), excluded_from_uptime: z.boolean(), impact: statusPageImpact, kind: noticeKind, resolved_at: z.number().int().nullable().optional(), starts_at: z.number().int(), state: noticeState, title: z.string(), updates: z.array(publicNoticeUpdate)});

export const snapshotCurrent = z.object({components: z.array(currentComponent), generated_at: z.number().int(), notices: z.array(publicNotice), overall: componentStatus});

export const grade = z.enum(["ok", "minor", "major", "severe", "maint", "no_data"]);

export const dayBucket = z.object({date: z.string(), downtime_min: z.number().int(), grade: grade, maint_min: z.number().int()});

export const uptimeWindows = z.object({d1: z.number().nullable().optional(), d30: z.number().nullable().optional(), d7: z.number().nullable().optional(), d90: z.number().nullable().optional()});

export const historyComponent = z.object({daily: z.array(dayBucket), key: z.string(), name: z.string(), uptime: uptimeWindows});

export const snapshotHistory = z.object({components: z.array(historyComponent), generated_at: z.number().int()});

export const statusPagePreview = z.object({current: snapshotCurrent, history: snapshotHistory});

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
};

/**
 * Preview a status page as published
 * 
 * GET /api/{org_id}/status_pages/{id}/preview
 */
export const getApiApiOrgIdStatusPagesIdPreview = async (args: GetApiApiOrgIdStatusPagesIdPreviewArgs, options: GetApiApiOrgIdStatusPagesIdPreviewOptions) => {
const {baseUrl, fetch: fetchFn = fetch, Authorization} = options ?? {}

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

if (Authorization !== undefined) headers.set("Authorization", Authorization)

const url = `${baseUrl.replace(/\/+$/, '')}/api/${encodeURIComponent(String(args.org_id))}/status_pages/${encodeURIComponent(String(args.id))}/preview${query.size > 0 ? `?${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(statusPagePreview, await res.json())
};