import {z} from 'zod'

export type GetApiV2AppsAppIdNetworkErrorsArgs = {appId: string, start: string, end: string, include_4xx?: ('true' | 'false') | undefined};

export type GetApiV2AppsAppIdNetworkErrorsOptions = {baseUrl?: string | undefined, apiKey?: string | undefined, fetch?: typeof fetch | undefined};

export const networkErrorsTimeBucket = z.object({date: z.string(), buckets: z.record(z.string(), z.number().int()), total: z.number().int()});

export const networkErrorsTopPath = z.object({path: z.string(), method: z.string().nullable(), total: z.number().int(), by_status: z.record(z.string(), z.number().int())});

export const networkErrorsByMethod = z.object({method: z.string().nullable(), total: z.number().int(), by_status: z.record(z.string(), z.number().int())});

export const networkErrors = z.object({summary: z.object({total: z.number().int(), by_class: z.object({"4xx": z.number().int(), "5xx": z.number().int()})}), by_status: z.array(z.object({status: z.number().int(), requests: z.number().int()})), timeseries: z.array(networkErrorsTimeBucket), top_paths: z.array(networkErrorsTopPath), by_method: z.array(networkErrorsByMethod)});

export const getApiV2AppsAppIdNetworkErrorsResponse = z.object({status: z.literal("success"), response: z.union([networkErrors, z.object({})])});

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 edge error breakdown for the application's domains
 * 
 * GET /v2/apps/{appId}/network/errors
 */
export const getApiV2AppsAppIdNetworkErrors = async (args: GetApiV2AppsAppIdNetworkErrorsArgs, options?: GetApiV2AppsAppIdNetworkErrorsOptions) => {
const {baseUrl = "https://api.squarecloud.app", fetch: fetchFn = fetch, apiKey} = options ?? {}

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

if (args.start != null) query.append("start", String(args.start))
if (args.end != null) query.append("end", String(args.end))
if (args.include_4xx != null) query.append("include_4xx", String(args.include_4xx))
if (apiKey !== undefined) headers.set("Authorization", apiKey)

const url = `${baseUrl.replace(/\/+$/, '')}/v2/apps/${encodeURIComponent(String(args.appId))}/network/errors${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(getApiV2AppsAppIdNetworkErrorsResponse, await res.json())
};