using Cysharp.Text;
using UnityEngine;

namespace AlicizaX.Runtime
{
    public static class LogReportUtil
    {
        private static LogDetails LastReportedDetails = new LogDetails();

        public static bool ForceDisableReport = true;


        internal static void RedirectLog()
        {
            Application.logMessageReceived += HandleLog;
        }

        internal static void UnRedirectLog()
        {
            Application.logMessageReceived -= HandleLog;
        }

        private static void HandleLog(string logMessage, string stackTrace, LogType logType)
        {
            GameFrameworkLogLevel logLevel = GameFrameworkLogLevel.Info;

            switch (logType)
            {
                case LogType.Error:
                    logLevel = GameFrameworkLogLevel.Error;
                    break;
                case LogType.Assert:
                case LogType.Exception:
                    logLevel = GameFrameworkLogLevel.Fatal;
                    break;
                case LogType.Warning:
                    logLevel = GameFrameworkLogLevel.Warning;
                    break;
                case LogType.Log:
                    logLevel = GameFrameworkLogLevel.Info;
                    break;
            }

            ProcessLogMessage(logLevel, logMessage, stackTrace);
        }

        private static void ProcessLogMessage(GameFrameworkLogLevel logLevel, string message, string stackTrace)
        {
            if (logLevel == GameFrameworkLogLevel.Fatal || logLevel == GameFrameworkLogLevel.Error)
            {
                string formattedMessage = "";
                using (var sb = ZString.CreateStringBuilder())
                {
                    sb.Append(message);
                    sb.Append(GetStackTrace(stackTrace));
                    formattedMessage = sb.ToString();
                }

                if (!ForceDisableReport && ShouldReport(logLevel, formattedMessage))
                {
                    _ = WebHookUtils.SendLogToServerAsync(formattedMessage);
                }
            }
        }


        private static string GetStackTrace(string stackTrace)
        {
            return string.IsNullOrEmpty(stackTrace) ? string.Empty : $"\nStackTrace:\n{SimplifyStackTrace(stackTrace)}";
        }

        private static string SimplifyStackTrace(string stackTrace)
        {
            var sb = ZString.CreateStringBuilder();
            var lines = stackTrace.Split('\n');
            bool skipLine = false;

            foreach (var line in lines)
            {
                if (line.Contains("Log") || line.Contains("Sirenix"))
                {
                    skipLine = true;
                }
                else
                {
                    if (skipLine)
                    {
                        if (!string.IsNullOrWhiteSpace(line) && !line.Contains("Log") && !line.Contains("Sirenix"))
                        {
                            skipLine = false;
                        }
                        else
                        {
                            continue;
                        }
                    }

                    if (!string.IsNullOrWhiteSpace(line))
                    {
                        sb.Append(line);
                        sb.Append('\n');
                    }
                }
            }

            string result = sb.ToString().Trim();
            return !string.IsNullOrEmpty(result) ? result : "Stack trace not available.";
        }


        private static bool ShouldReport(GameFrameworkLogLevel logLevel, string message)
        {
            if (LastReportedDetails.Level == logLevel && LastReportedDetails.Message.Equals(message))
            {
                return false;
            }

            LastReportedDetails.Update(logLevel, message);
            return true;
        }


        private struct LogDetails
        {
            public GameFrameworkLogLevel Level;
            public string Message;

            public void Update(GameFrameworkLogLevel level, string message)
            {
                Level = level;
                Message = message;
            }
        }
    }
}