using AwInitilizer.Model;
using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net.Http;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using System.Windows;

namespace AwInitilizer.Assist
{
    public class EvApiResult<T>
    {
        public T Result { get; set; }
        public string Response { get; set; }
    }

    public class EvApiWifiResult
    {
        public int Rssi { get; set; }
        public int ErrorCode { get; set; }
    }

    public static class EvApi
    {
        internal static async Task<EvApiResult<bool>> ChekCsuBootCompelete()
        {
            var getResult = await EvHttpClient.GetQueryActionOpt2String();
            if (!getResult.IsSuccess ||
                string.IsNullOrEmpty(getResult.Msg))
            {
                return new EvApiResult<bool>() { Response = getResult.Msg, Result = false };
            }

            Regex rx = new Regex("(SystemStatus)\\\": ([0-9]*)");
            var matches = rx.Matches(getResult.Msg);
            if (matches.Count == 0)
            {
                return new EvApiResult<bool>()
                {
                    Result = false,
                    Response = getResult.Msg
                };
            }
            bool isAllPassed = true;
            for (int matchIndex = 0; matchIndex < matches.Count; matchIndex++)
            {
                var match = matches[matchIndex];
                if (match.Groups.Count != 3)
                {
                    isAllPassed = false;
                    break;
                }
                else
                {
                    if (match.Groups[2].Value != "1")
                    {
                        isAllPassed = false;
                        break;
                    }
                }
            }

            return new EvApiResult<bool>()
            {
                Result = isAllPassed,
                Response = getResult.Msg,
            };
        }

        internal static async Task<EvApiResult<bool>> CheckGetQueryAction()
        {
            var getResult = await EvHttpClient.GetQueryActionOpt2String();
            if (!getResult.IsSuccess ||
                string.IsNullOrEmpty(getResult.Msg))
            {
                return new EvApiResult<bool>() { Response = getResult.Msg, Result = false };
            }

            return new EvApiResult<bool>()
            {
                Result = !string.IsNullOrEmpty(getResult.Msg),
                Response = getResult.Msg
            };
        }

        internal static async Task<EvApiResult<ButtonStatus>> GetButtonStatus()
        {
            var getResult = await EvHttpClient.GetButtonStatusString();
            var result = getResult.Msg;

            if (!getResult.IsSuccess)
            {
                return new EvApiResult<ButtonStatus>()
                {
                    Result = null,
                    Response = getResult.Msg
                };
            }

            if (!result.Contains("Button1") ||
                !result.Contains("Button2"))
            {
                return new EvApiResult<ButtonStatus>()
                {
                    Result = null,
                    Response = result
                };
            }
            var values = JsonConvert.DeserializeObject<ButtonStatus>(result);
            return new EvApiResult<ButtonStatus>()
            {
                Result = values,
                Response = result,
            };
        }

        internal static async Task<EvApiResult<Dictionary<string, string>>> GetVersion()
        {
            var getResult = await EvHttpClient.GetQueryActionOpt1String();
            var toReturn = new Dictionary<string, string>();

            string result = getResult.Msg;
            if (!getResult.IsSuccess)
            {
                return new EvApiResult<Dictionary<string, string>>()
                {
                    Result = null,
                    Response = getResult.Msg,
                };
            }

            var values = JsonConvert.DeserializeObject<Dictionary<string, object>>(result);

            foreach (var pair in values)
            {
                if (pair.Value is string v)
                {
                    toReturn.Add(pair.Key, v);
                }
                else if (pair.Value is Newtonsoft.Json.Linq.JArray a)
                {
                    try
                    {
                        var versionList = JsonConvert.DeserializeObject<List<string>>(a.ToString());
                        for (int index = 0; index < versionList.Count; index++)
                        {
                            toReturn.Add(string.Format("{0}{1}", pair.Key, index), versionList[index]);
                        }
                    }
                    catch
                    {

                    }
                }
            }

            return new EvApiResult<Dictionary<string, string>>()
            {
                Result = toReturn,
                Response = result
            };
        }

        internal static async Task<EvApiResult<string>> GetTelcomModemImei()
        {
            var getResult = await EvHttpClient.GetQueryActionOpt3String();
            string result = getResult.Msg;
            if (!getResult.IsSuccess)
            {
                return new EvApiResult<string>()
                {
                    Result = null,
                    Response = getResult.Msg,
                };
            }

            Regex rx = new Regex("(TelcomModemImei)\\\": \"([0-9]*)\"");
            var matches = rx.Matches(result);
            string imeiString = string.Empty;

            if (matches.Count != 0)
            {
                var match = matches[0];
                if (match.Groups.Count != 3)
                {
                    imeiString = string.Empty;
                }
                else
                {
                    if (match.Groups[2].Value is string imei)
                    {
                        imeiString = imei;
                    }
                    else
                    {
                        imeiString = "";
                    }
                }
            }
            else
            {
                imeiString = "";
            }

            return new EvApiResult<string>()
            {
                Result = imeiString,
                Response = result
            };
        }

        internal static async Task<EvApiResult<EvApiWifiResult>> GetWifiRssi()
        {
            var getResult = await EvHttpClient.GetQueryActionOpt3String();
            string result = getResult.Msg;
            if (!getResult.IsSuccess)
            {
                return new EvApiResult<EvApiWifiResult>()
                {
                    Result = new EvApiWifiResult()
                    {
                        Rssi = 0,
                        ErrorCode = 0
                    },
                    Response = getResult.Msg,
                };
            }

            Regex rx_mode = new Regex("(WifiMode)\\\": ([0-9]*)");
            var matches_mode = rx_mode.Matches(result);
            int rssi = 0;
            int errorCode = -1;

            if (matches_mode.Count != 0)
            {
                var match = matches_mode[0];
                if (match.Groups.Count != 3)
                {
                    errorCode = 0;
                }
                else
                {
                    if (int.TryParse(match.Groups[2].Value, out var wifiMode))
                    {
                        if (wifiMode != 1)
                        {
                            errorCode = 1;
                        }
                    }
                }
            }
            else
            {
                errorCode = 2;
            }

            if (errorCode != -1)
            {
                return new EvApiResult<EvApiWifiResult>()
                {
                    Result = new EvApiWifiResult()
                    {
                        Rssi = rssi,
                        ErrorCode = errorCode
                    },
                    Response = result
                };
            }

            Regex rx = new Regex("(WifiRssi)\\\": (-?[0-9]*)");
            var matches = rx.Matches(result);

            if (matches.Count != 0)
            {
                var match = matches[0];
                if (match.Groups.Count != 3)
                {
                    errorCode = 3;
                }
                else
                {
                    if (int.TryParse(match.Groups[2].Value, out var rssiSignal))
                    {
                        rssi = rssiSignal;
                    }
                    else
                    {
                        errorCode = 4;
                    }
                }
            }
            else
            {
                errorCode = 5;
            }

            return new EvApiResult<EvApiWifiResult>()
            {
                Result = new EvApiWifiResult()
                {
                    Rssi = rssi,
                    ErrorCode = errorCode
                },
                Response = result
            };
        }

        internal static async Task<EvApiResult<Dictionary<int, string>>> GetConnectorStatus()
        {
            var getResult = await EvHttpClient.GetQueryActionOpt2String();
            Dictionary<int, string> connectorStatusPair = new Dictionary<int, string>();

            string result = getResult.Msg;
            if (!getResult.IsSuccess)
            {
                return new EvApiResult<Dictionary<int, string>>()
                {
                    Result = null,
                    Response = getResult.Msg
                };
            }

            Regex rx = new Regex("(SystemStatus)\\\": (\\d)");
            var matches = rx.Matches(result);
            for (int matchIndex = 0; matchIndex < matches.Count; matchIndex++)
            {
                var match = matches[matchIndex];
                if (match.Groups.Count != 3)
                {
                    //LogWriter.Log($"Connector {matchIndex} status string mismatched");
                    return new EvApiResult<Dictionary<int, string>>()
                    {
                        Result = null,
                        Response = result
                    };
                    //InfoLog += $"Connector {matchIndex} status string mismatched\n";
                    //Logger.Print($"Connector {matchIndex} status string mismatched", isError:true);
                }
                else
                {
                    connectorStatusPair.Add(matchIndex, match.Groups[2].Value);
                }
            }

            return new EvApiResult<Dictionary<int, string>>()
            {
                Result = connectorStatusPair,
                Response = result,
            };
        }

        internal static async Task<EvApiResult<bool>> FactorySet()
        {
            var getResult = await EvHttpClient.GetFactorySetResultString();
            var result = getResult.Msg;
            if (!getResult.IsSuccess)
            {
                return new EvApiResult<bool>()
                {
                    Result = false,
                    Response = getResult.Msg
                };
            }

            Regex rx = new Regex("(result)\":\"([a-zA-Z]*)\"");
            var matches = rx.Matches(result);
            if (matches.Count > 0 &&
                matches[0].Success &&
                matches[0].Groups.Count == 3 &&
                matches[0].Groups[2].Value.ToLower() == "success")
            {
                return new EvApiResult<bool>()
                {
                    Result = true,
                    Response = result
                };
            }
            return new EvApiResult<bool>()
            {
                Result = false,
                Response = result
            };
        }

        internal static async Task<EvApiResult<bool>> SignalUpdateFirmware()
        {
            var result = await EvHttpClient.GetSignalUpdateFirmwareResultString();
            if (!result.IsSuccess)
            {
                return new EvApiResult<bool>()
                {
                    Result = false,
                    Response = result.Msg
                };
            }

            return new EvApiResult<bool>()
            {
                Result = !string.IsNullOrEmpty(result.Msg),
                Response = result.Msg,
            };
        }

        internal static async Task<EvApiResult<bool>> SetAuthorisationMode(bool isAuthRequired)
        {
            var result = await EvHttpClient.SetSystemAction("AuthorisationMode", isAuthRequired ? "0" : "1");
            if (!result.IsSuccess)
            {
                return new EvApiResult<bool>()
                {
                    Result = false,
                    Response = result.Msg
                };
            }

            return new EvApiResult<bool>()
            {
                Result = !string.IsNullOrEmpty(result.Msg),
                Response = result.Msg,
            };
        }

        internal static async Task<EvApiResult<string>> GetTelcomModemFwRev()
        {
            var key = "TelcomModemFwRev";

            var result = await GetVersion();
            if (result.Result is null)
            {
                return new EvApiResult<string> { Result = null, Response = result.Response };
            }

            var versionPairs = result.Result;
            if (versionPairs is null || !versionPairs.ContainsKey(key))
            {
                return new EvApiResult<string> { Result = string.Empty, Response = result.Response };
            }

            return new EvApiResult<string> { Result = versionPairs[key], Response = result.Response };
        }

        internal static async Task<EvApiResult<string>> GetTelcomSubModemFwRev()
        {
            var key = "TelcomSubModemFwRev";

            var result = await GetVersion();
            if (result.Result is null)
            {
                return new EvApiResult<string> { Result = null, Response = result.Response };
            }

            var versionPairs = result.Result;
            if (versionPairs is null || !versionPairs.ContainsKey(key))
            {
                return new EvApiResult<string> { Result = string.Empty, Response = result.Response };
            }

            return new EvApiResult<string> { Result = versionPairs[key], Response = result.Response };
        }

        internal static async Task<EvApiResult<SimStatusString>> GetTelcomSimStatus()
        {
            var result = await EvHttpClient.GetQueryActionOpt3String();
            if (!result.IsSuccess)
            {
                return new EvApiResult<SimStatusString>()
                {
                    Result = null,
                    Response = result.Msg
                };
            }

            var simStatus = GetIntValue("TelcomSimStatus", result.Msg);
            var simIccid = GetStringValue("TelcomSimIccid", result.Msg);
            var simImsi = GetStringValue("TelcomSimImsi", result.Msg);
            return new EvApiResult<SimStatusString>()
            {
                Result = new SimStatusString() { IsInstalled = simStatus == 1, ICCID = simIccid, IMSI = simImsi },
                Response = result.Msg,
            };
        }

        internal static async Task<EvApiResult<SimStatusString>> GetTelcomSubSimStatus()
        {
            var result = await EvHttpClient.GetQueryActionOpt3String();
            if (!result.IsSuccess)
            {
                return new EvApiResult<SimStatusString>()
                {
                    Result = null,
                    Response = result.Msg
                };
            }

            var simStatus = GetIntValue("TelcomSubSimStatus", result.Msg);
            var simIccid = GetStringValue("TelcomSubSimIccid", result.Msg);
            var simImsi = GetStringValue("TelcomSubSimImsi", result.Msg);
            return new EvApiResult<SimStatusString>()
            {
                Result = new SimStatusString() { IsInstalled = simStatus == 1, ICCID = simIccid, IMSI = simImsi },
                Response = result.Msg,
            };
        }

        /// <summary>
        /// Not Tested
        /// </summary>
        /// <param name="fileName"></param>
        /// <returns></returns>
        [Obsolete]
        internal static async Task<EvApiResult<bool>> Uploadfirmware(string fileName)
        {
            var result = await EvHttpClient.GetUploadfirmwareResultString(new List<string> { fileName });
            if (!result.IsSuccess)
            {
                return new EvApiResult<bool>()
                {
                    Result = false,
                    Response = result.Msg
                };
            }

            return new EvApiResult<bool>()
            {
                Result = !string.IsNullOrEmpty(result.Msg),
                Response = result.Msg,
            };
        }

        /// <summary>
        /// Not tested
        /// </summary>
        /// <param name="fileNames"></param>
        /// <returns></returns>
        internal static async Task<EvApiResult<bool>> Uploadfirmware(List<string> fileNames)
        {
            var result = await EvHttpClient.GetUploadfirmwareResultString(fileNames);
            if (!result.IsSuccess)
            {
                return new EvApiResult<bool>()
                {
                    Result = false,
                    Response = result.Msg
                };
            }

            return new EvApiResult<bool>()
            {
                Result = !string.IsNullOrEmpty(result.Msg),
                Response = result.Msg,
            };
        }

        private static int? GetIntValue(string key, string source)
        {
            Regex rx = new Regex($"({key})\\\": ([0-9]*)");
            var matches = rx.Matches(source);

            if (matches.Count != 0)
            {
                var match = matches[0];
                if (match.Groups.Count != 3)
                {
                    return null;
                }
                else
                {
                    if (int.TryParse(match.Groups[2].Value, out var val))
                    {
                        return val;
                    }
                    else
                    {
                        return null;
                    }
                }
            }
            return null;
        }



        private static string GetStringValue(string key, string source)
        {
            Regex rx = new Regex($"({key})\\\": \"([a-zA-Z0-9]*)\"");
            var matches = rx.Matches(source);

            if (matches.Count != 0)
            {
                var match = matches[0];
                if (match.Groups.Count != 3)
                {
                    return null;
                }
                else
                {
                    return match.Groups[2].Value;
                }
            }
            return null;
        }
    }
}