import {z} from 'zod'

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

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

export const timeSeriesData = z.object({x: z.string(), y: z.number()});

export const luaScriptStat = z.object({sha: z.string().optional(), script_name: z.string().optional(), count: z.number().optional(), failures: z.number().optional(), timeouts: z.number().optional(), memory_limits: z.number().optional(), command_count: z.number().optional(), avg_duration_ns: z.number().optional(), max_duration_ns: z.number().optional(), avg_lua_duration_ns: z.number().optional(), avg_command_duration_ns: z.number().optional(), avg_allocated_bytes: z.number().optional(), max_allocated_bytes: z.number().optional()});

export const slowCommandStat = z.object({command: z.string().optional(), count: z.number().optional(), max_ms: z.number().optional()});

export const commandCount = z.object({metric_identifier: z.string().optional(), data_points: z.array(timeSeriesData).optional()});

export const databaseStats = z.object({monitor_count: timeSeriesData.optional(), daily_net_commands: z.number().int().optional(), daily_read_requests: z.number().int().optional(), daily_write_requests: z.number().int().optional(), connection_count: z.array(timeSeriesData).optional(), keyspace: z.array(timeSeriesData).optional(), throughput: z.array(timeSeriesData).optional(), diskusage: z.array(timeSeriesData).optional(), latency_p50: z.array(timeSeriesData).optional(), latencymean: z.array(timeSeriesData).optional(), latency_99: z.array(timeSeriesData).optional(), read_latency_p50: z.array(timeSeriesData).optional(), read_latency_mean: z.array(timeSeriesData).optional(), read_latency_99: z.array(timeSeriesData).optional(), write_latency_p50: z.array(timeSeriesData).optional(), write_latency_mean: z.array(timeSeriesData).optional(), write_latency_99: z.array(timeSeriesData).optional(), hits: z.array(timeSeriesData).optional(), misses: z.array(timeSeriesData).optional(), read: z.array(timeSeriesData).optional(), write: z.array(timeSeriesData).optional(), dailyrequests: z.array(timeSeriesData).optional(), days: z.array(z.string()).optional(), dailybilling: z.array(timeSeriesData).optional(), dailybandwidth: z.number().int().optional(), bandwidths: z.array(timeSeriesData).optional(), total_monthly_bandwidth: z.number().int().optional(), total_monthly_requests: z.number().int().optional(), total_monthly_read_requests: z.number().int().optional(), total_monthly_write_requests: z.number().int().optional(), total_monthly_script_requests: z.number().int().optional(), queue_optimized: z.boolean().optional(), total_monthly_storage: z.number().int().optional(), current_storage: z.number().int().optional(), total_monthly_billing: z.number().optional(), rest_conn_count: z.array(timeSeriesData).optional(), latency_p90: z.array(timeSeriesData).optional(), command_latency_p50: z.array(timeSeriesData).optional(), command_latency_99: z.array(timeSeriesData).optional(), wait_latency_99: z.array(timeSeriesData).optional(), disk_load_latency_99: z.array(timeSeriesData).optional(), disk_loads: z.array(timeSeriesData).optional(), lua_latency_p50: z.array(timeSeriesData).optional(), lua_latency_99: z.array(timeSeriesData).optional(), lua_scripts: z.array(luaScriptStat).optional(), lua_script_count: z.number().optional(), slow_commands: z.array(slowCommandStat).optional(), acl_user_logins: z.array(z.object({username: z.string().optional(), logins: z.number().optional()})).optional(), command_counts: z.array(commandCount).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 Stats
 * 
 * GET /redis/stats/{id}
 */
export const getApiRedisStatsId = async (args: GetApiRedisStatsIdArgs, options?: GetApiRedisStatsIdOptions) => {
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/stats/${encodeURIComponent(String(args.id))}${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(databaseStats, await res.json())
};