import {z} from 'zod'

export type GetApiRedisTrafficIdArgs = {id: string, period?: string | undefined};

export type GetApiRedisTrafficIdOptions = {baseUrl?: string | undefined, basicAuth?: {username: string, password: string} | undefined, fetch?: typeof fetch | undefined};

export const clientNetwork = z.object({prefix: z.string().optional(), entry_region: z.string().optional(), provider: z.string().optional(), region: z.string().optional(), count: z.number().optional(), weight: z.number().optional(), share: z.number().optional(), idle_seconds: z.number().optional()});

export const telemetryShare = z.object({name: z.string().optional(), count: z.number().optional(), share: z.number().optional()});

export const trafficRoute = z.object({proxy_region: z.string().optional(), member_region: z.string().optional(), http_requests: z.number().optional(), tcp_connections_opened: z.number().optional(), tcp_connections: z.number().optional(), ingress_bytes: z.number().optional(), egress_bytes: z.number().optional(), errors: z.number().optional(), cross_region: z.boolean().optional()});

export const databaseTraffic = z.object({period: z.string().optional(), database_region: z.string().optional(), client_network_window: z.string().optional(), client_networks: z.array(clientNetwork).optional(), client_network_evictions: z.number().optional(), telemetry_window: z.string().optional(), telemetry: z.object({sdks: z.array(telemetryShare).optional(), platforms: z.array(telemetryShare).optional(), runtimes: z.array(telemetryShare).optional(), retries: z.object({requests: z.number().optional(), retried: z.number().optional(), rate: z.number().optional()}).optional()}).optional(), routes_window: z.string().optional(), routes: z.array(trafficRoute).optional(), entry_regions: z.array(z.object({region: z.string().optional(), share: z.number().optional()})).optional(), cross_region_share: z.number().optional(), commands: z.object({rest_commands: z.number().optional(), script_commands: z.number().optional()}).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 Database Traffic
 * 
 * GET /redis/traffic/{id}
 */
export const getApiRedisTrafficId = async (args: GetApiRedisTrafficIdArgs, options?: GetApiRedisTrafficIdOptions) => {
const {baseUrl = "https://api.upstash.com/v2", fetch: fetchFn = fetch, basicAuth} = options ?? {}

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

if (args.period != null) query.append("period", String(args.period))
if (basicAuth !== undefined) headers.set('authorization', `Basic ${btoa(`${basicAuth.username}:${basicAuth.password}`)}`)

const url = `${baseUrl.replace(/\/+$/, '')}/redis/traffic/${encodeURIComponent(String(args.id))}${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(databaseTraffic, await res.json())
};