import {z} from 'zod'

export type GetApiV2DlqArgs = {cursor?: string | undefined, messageId?: string | undefined, url?: Array<string> | undefined, topicName?: Array<string> | undefined, scheduleId?: Array<string> | undefined, queueName?: Array<string> | undefined, fromDate?: number | undefined, toDate?: number | undefined, responseStatus?: Array<number> | undefined, callerIp?: Array<string> | undefined, label?: Array<string> | undefined, count?: number | undefined};

export type GetApiV2DlqOptions = {baseUrl?: string | undefined, bearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const dLQMessage = z.object({messageId: z.string().optional(), url: z.string().optional(), topicName: z.string().optional(), endpointName: z.string().optional(), method: z.string().optional(), header: z.record(z.string(), z.array(z.string())).optional(), body: z.string().optional(), bodyBase64: z.string().optional(), maxRetries: z.number().int().optional(), notBefore: z.number().int().optional(), createdAt: z.number().int().optional(), callback: z.string().optional(), failureCallback: z.string().optional(), queueName: z.string().optional(), scheduleId: z.string().optional(), callerIP: z.string().optional(), label: z.string().optional(), labels: z.array(z.string()).optional(), flowControlKey: z.string().optional(), rate: z.number().int().optional(), period: z.number().int().optional(), parallelism: z.number().int().optional(), responseStatus: z.number().int().optional(), responseHeader: z.record(z.string(), z.array(z.string())).optional(), responseBody: z.string().optional(), responseBodyBase64: z.string().optional()});

export const getApiV2DlqResponse = z.object({cursor: z.string().optional(), messages: z.array(dLQMessage).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
};

/**
 * List DLQ messages
 * 
 * GET /v2/dlq
 * 
 * Also accepts auth: bearerAuthQuery
 */
export const getApiV2Dlq = async (args: GetApiV2DlqArgs, options?: GetApiV2DlqOptions) => {
const {baseUrl = "https://qstash-eu-central-1.upstash.io", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

if (args.cursor != null) query.append("cursor", String(args.cursor))
if (args.messageId != null) query.append("messageId", String(args.messageId))
for (const item of args.url ?? []) query.append("url", String(item))
for (const item of args.topicName ?? []) query.append("topicName", String(item))
for (const item of args.scheduleId ?? []) query.append("scheduleId", String(item))
for (const item of args.queueName ?? []) query.append("queueName", String(item))
if (args.fromDate != null) query.append("fromDate", String(args.fromDate))
if (args.toDate != null) query.append("toDate", String(args.toDate))
for (const item of args.responseStatus ?? []) query.append("responseStatus", String(item))
for (const item of args.callerIp ?? []) query.append("callerIp", String(item))
for (const item of args.label ?? []) query.append("label", String(item))
if (args.count != null) query.append("count", String(args.count))
if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v2/dlq${query.size > 0 ? `?${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(getApiV2DlqResponse, await res.json())
};