using Newtonsoft.Json;
using System;
using System.Collections;
using System.Collections.Generic;
using System.ComponentModel.Design;
using System.Linq;
using System.Security.Cryptography;
using System.Text;
using System.Threading.Tasks;
using Windows.Data.Json;

namespace KdanCommon.Mixpanel.Data
{
    public class EventData
    {
        [JsonProperty("event")]
        public string Event { get; }

        [JsonProperty("properties")]
        public Dictionary<string, object> Properties
        {
            get
            {
                return GetDictionary();
            }
        }

        private string _distinctId { get; }

        private Dictionary<string, object> _customProperties { get; }

        public EventData(string eventName, string distinctId, Dictionary<string, object> customProperties = null)
        {
            Event = eventName;
            _distinctId = distinctId;
            _customProperties = customProperties;
        }

        private Dictionary<string, object> GetDictionary()
        {
            DateTime gtm = new DateTime(1970, 1, 1);
            long timeStamp = Convert.ToInt64(((TimeSpan)DateTime.UtcNow.Subtract(gtm)).TotalSeconds);

            var properties = new Dictionary<string, object>
            {
                { "time", timeStamp },
                { "distinct_id", _distinctId },
                { "$insert_id", GetInsertId(_distinctId, timeStamp, _customProperties) },
                { "$city", "台南"}
            };

            if (_customProperties != null)
            {
                foreach (var kvp in _customProperties)
                    properties.Add(kvp.Key, kvp.Value);
            }

            return properties;
        }

        private string GetInsertId(string distinctId, long timestamp, Dictionary<string, object> properties)
        {
            return Guid.NewGuid().ToString("N");
            /*
            try
            {
                var str = Guid.NewGuid();
                var str2 = Guid.NewGuid().ToString("N");

                string semanticallyUniqueStr = $"{distinctId}{timestamp}";
                if (properties != null)
                {
                    foreach (var value in properties.Values)
                        semanticallyUniqueStr += value;
                }

                byte[] semanticallyUniqueBytes = Encoding.UTF8.GetBytes(semanticallyUniqueStr);
                using (var sha256 = SHA256.Create())
                {
                    byte[] hashBytes = sha256.ComputeHash(semanticallyUniqueBytes);
                    string hashStr = Convert.ToBase64String(hashBytes);
                    return hashStr.Substring(0, 36);
                }
            }
            catch
            {
                return "";
                //return Guid.NewGuid().ToString("N").Substring(0, 36);
            }
            */
        }
    }
    public class ProfileData
    {
        [JsonProperty("token")]
        public string Token { get; }

        [JsonProperty("$distinct_id")]
        public string DistinctId { get; }

        [JsonProperty("$set")]
        public Dictionary<string, object> Set
        {
            get
            {
                return GetDictionary();
            }
        }
        private string _name { get; }
        private string _mail { get; }

        private Dictionary<string, object> _customProperties { get; }

        public ProfileData(string projectToken, string distinctId, string name, string mail, Dictionary<string, object> customProperties = null)
        {
            Token = projectToken;
            DistinctId = distinctId;
            _name = name;
            _mail = mail;
            _customProperties = customProperties;
        }

        private Dictionary<string, object> GetDictionary()
        {
            var properties = new Dictionary<string, object>
            {
                { "$name", _name },
                { "$email", _mail }
            };

            if (_customProperties != null)
            {
                foreach (var kvp in _customProperties)
                    properties.Add(kvp.Key, kvp.Value);
            }
            return properties;
        }
    }

    public class AliasData
    {
        [JsonProperty("event")]
        public string Event { get; set; }

        [JsonProperty("properties")]
        public Properties Properties { get; set; }
    }

    public class Properties
    {
        [JsonProperty("distinct_id")]
        public string DistinctId { get; set; }

        [JsonProperty("alias")]
        public string Alias { get; set; }

        [JsonProperty("token")]
        public string Token { get; set; }
    }
}