import {z} from 'zod'

export type AiGatewayRateLimitMode = 'ALERT' | 'ENFORCE';

export type AiGatewayRateLimitCreateAttributes = {input_tokens_per_minute?: (number | null) | undefined, mode?: AiGatewayRateLimitMode | undefined, name: string, output_tokens_per_minute?: (number | null) | undefined, requests_per_minute?: (number | null) | undefined, tags?: {[key: string]: string} | undefined, team_id?: string | undefined, user_id?: string | undefined};

export type AiGatewayRateLimitType = 'rate-limits';

export type AiGatewayRateLimitCreateData = {attributes: AiGatewayRateLimitCreateAttributes, type: AiGatewayRateLimitType};

export type AiGatewayRateLimitCreateRequest = {data: AiGatewayRateLimitCreateData};

export type CreateApiApiV2RateLimitsArgs = {body: AiGatewayRateLimitCreateRequest};

export type CreateApiApiV2RateLimitsOptions = {baseUrl?: string | undefined, apiKeyAuth?: string | undefined, appKeyAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const aiGatewayRateLimitMode = z.enum(["ALERT", "ENFORCE"]);

export const aiGatewayRateLimitAttributes = z.object({created_at: z.string(), created_by: z.string(), enabled: z.boolean(), input_tokens_per_minute: z.number().int().gte(1).lte(100000000000).nullable().optional(), mode: aiGatewayRateLimitMode, monitor_id: z.number().int().nullable().optional(), name: z.string(), output_tokens_per_minute: z.number().int().gte(1).lte(100000000000).nullable().optional(), requests_per_minute: z.number().int().gte(1).lte(10000000).nullable().optional(), revision: z.number().int(), scope_restricted: z.boolean(), tags: z.record(z.string(), z.string()), team_id: z.string().nullable().optional(), updated_at: z.string(), updated_by: z.string(), user_id: z.string().nullable().optional()});

export const aiGatewayRateLimitType = z.literal("rate-limits");

export const aiGatewayRateLimitResource = z.object({attributes: aiGatewayRateLimitAttributes, id: z.string(), type: aiGatewayRateLimitType});

export const aiGatewayRateLimitResponse = z.object({data: aiGatewayRateLimitResource});

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
};

/**
 * Create an AI Gateway rate limit
 * 
 * POST /api/v2/rate-limits
 * 
 * Also accepts auth: AuthZ
 */
export const createApiApiV2RateLimits = async (args: CreateApiApiV2RateLimitsArgs, options?: CreateApiApiV2RateLimitsOptions) => {
const {baseUrl = "https://api.datadoghq.com", fetch: fetchFn = fetch, apiKeyAuth, appKeyAuth} = options ?? {}

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

if (apiKeyAuth !== undefined) headers.set("DD-API-KEY", apiKeyAuth)
if (appKeyAuth !== undefined) headers.set("DD-APPLICATION-KEY", appKeyAuth)

const url = `${baseUrl.replace(/\/+$/, '')}/api/v2/rate-limits${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers, body: JSON.stringify(args.body)})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(aiGatewayRateLimitResponse, await res.json())
};