using Newtonsoft.Json.Linq;

using RestSharp;

using System;

using System.Collections.Generic;

using System.Linq;

​

namespace Demo

{

    public class Program

    {

        static RestClient client = new RestClient();

​

        static void Main()

        {

            var result = getLiveStartDateTimeList(4767523, 10413051);

            foreach (var pair in result)

            {

                if (pair.Value == default)

                    Console.WriteLine($"{pair.Key}: offline");

                else

                    Console.WriteLine($"{pair.Key}: {pair.Value:yy-MM-dd HH:mm:ss}");

            }

        }

​

​

​

        static IReadOnlyDictionary<int, DateTime> getLiveStartDateTimeList(params int[] roomIds)

        {

            var req = new RestRequest("https://api.live.bilibili.com/room/v2/Room/get_by_ids", Method.POST)

                .AddJsonBody(new { ids = roomIds });

            var data = GetBiliData(req);

            var result = data.AsJEnumerable().Select(j => (JProperty)j).ToDictionary(j => int.Parse(j.Name), j =>

            {

                if (j.Value["live_status"].ToObject<string>() != "1")

                    return default;

                var dateStr = j.Value["live_time"].ToObject<string>();

                var date = DateTime.ParseExact(dateStr, "yyyy-MM-dd HH:mm:ss", null);

                return date;

            });

            return result;

        }

​

​

        //get

        static DateTime getLiveStartDateTime(int roomId)

        {

            var req = new RestRequest("https://api.live.bilibili.com/room/v1/Room/room_init", Method.GET)

                .AddQueryParameter("id", roomId.ToString());

            var data = GetBiliData(req);

            if (data["live_status"].ToObject<string>() != "1")

                return default;

            var timestamp = data["live_time"].ToObject<int>();

            var date = DateTimeOffset.FromUnixTimeSeconds(timestamp).ToLocalTime();

            return date.DateTime;

        }

​

​

        static JObject GetBiliData(IRestRequest req)

        {

            var rsp = client.Execute(req);

            if (!rsp.IsSuccessful)

                throw new Exception("请求失败：" + rsp.ErrorMessage);

            var json = JObject.Parse(rsp.Content);

            if (json["code"].ToObject<int>() != 0)

                throw new Exception("响应错误：" + json["msg"].ToObject<string>());

            return (JObject)json["data"];

        }

    }

}