using System;
using System.Collections.Generic;
using System.Net.Http;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Json;
using System.Threading.Tasks;

namespace WarframeClock
{
    [DataContract]
    public class WorldState
    {
        [DataMember(Name = "SyndicateMissions")]
        public List<WorldStateSyndicateMission> SyndicateMissions;

        [DataContract]
        public class WorldStateSyndicateMission
        {
            [DataMember(Name = "Tag")]
            public string Tag { get; set; }
            [DataMember(Name = "Expiry")]
            public WorldStateDate Expiry { get; set; }
        }

        [DataContract]
        public class WorldStateDate
        {
            [DataMember(Name = "$date")]
            public WorldStateNumberLong Date { get; set; }
        }

        [DataContract]
        public class WorldStateNumberLong
        {
            [DataMember(Name = "$numberLong")]
            public long NumberLong { get; set; }
        }

        public static async Task<WorldState> Fetch()
        {
            using (var httpClient = new HttpClient())
            {
                var res = await httpClient.GetAsync("http://content.warframe.com/dynamic/worldState.php");
                if (!res.IsSuccessStatusCode)
                {
                    throw new Exception("WorldState: Could not fetch worldState.php");
                }

                var body = await res.Content.ReadAsStreamAsync();
                var serializer = new DataContractJsonSerializer(typeof(WorldState));
                return (WorldState)serializer.ReadObject(body);
            }
        }
    }
}