using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using HarmonyLib;
using RimWorld;
using UnityEngine;
using Verse;

namespace AIImages.Patches
{
    /// <summary>
    /// Патч для получения записей лога пешки через ITab_Pawn_Log
    /// </summary>
    [HarmonyPatch(typeof(ITab_Pawn_Log), "FillTab")]
    public static class ITab_Pawn_Log_Patch
    {
        private static Pawn lastPawn = null;
        private static List<LogEntry> cachedEntries = new List<LogEntry>();

        [HarmonyPrefix]
        public static void Prefix(ITab_Pawn_Log __instance)
        {
            try
            {
                // Получаем пешку через рефлексию
                var selPawnProp = AccessTools.Property(typeof(ITab), "SelPawn");
                if (selPawnProp != null)
                {
                    var pawn = selPawnProp.GetValue(__instance) as Pawn;
                    if (pawn != null)
                    {
                        // Пробуем получить записи напрямую через Pawn.logs
                        var logsProperty = AccessTools.Property(typeof(Pawn), "logs");
                        if (logsProperty != null)
                        {
                            var logs = logsProperty.GetValue(pawn);
                            if (logs != null)
                            {
                                // Пробуем AllEntries
                                var allEntriesProperty = AccessTools.Property(
                                    logs.GetType(),
                                    "AllEntries"
                                );
                                if (allEntriesProperty != null)
                                {
                                    var entries = allEntriesProperty.GetValue(logs);
                                    if (entries is IEnumerable<LogEntry> entriesList)
                                    {
                                        cachedEntries = entriesList.ToList();
                                        lastPawn = pawn;
                                        UnityEngine.Debug.Log(
                                            $"[AI Images] Cached {cachedEntries.Count} log entries for {pawn.Name}"
                                        );
                                        return;
                                    }
                                }
                            }
                        }
                    }
                }
            }
            catch (System.Exception ex)
            {
                UnityEngine.Debug.LogWarning(
                    $"[AI Images] ITab_Pawn_Log patch error: {ex.Message}"
                );
            }
        }

        public static List<LogEntry> GetCachedEntries(Pawn pawn)
        {
            if (pawn == lastPawn && cachedEntries != null && cachedEntries.Any())
            {
                return cachedEntries;
            }

            // Если кэш не подходит, пытаемся получить напрямую
            if (pawn != null)
            {
                try
                {
                    var logsProperty = AccessTools.Property(typeof(Pawn), "logs");
                    if (logsProperty != null)
                    {
                        var logs = logsProperty.GetValue(pawn);
                        if (logs != null)
                        {
                            var allEntriesProperty = AccessTools.Property(
                                logs.GetType(),
                                "AllEntries"
                            );
                            if (allEntriesProperty != null)
                            {
                                var entries = allEntriesProperty.GetValue(logs);
                                if (entries is IEnumerable<LogEntry> entriesList)
                                {
                                    var list = entriesList.ToList();
                                    if (list.Any())
                                    {
                                        cachedEntries = list;
                                        lastPawn = pawn;
                                        return list;
                                    }
                                }
                            }
                        }
                    }
                }
                catch (System.Exception ex)
                {
                    UnityEngine.Debug.LogWarning(
                        $"[AI Images] Error getting entries directly: {ex.Message}"
                    );
                }
            }

            return new List<LogEntry>();
        }
    }

    /// <summary>
    /// Патч для получения записей лога пешки
    /// Упрощённая версия - только для получения данных
    /// </summary>
    public static class PawnLogPatch
    {
        /// <summary>
        /// Получает все записи лога пешки
        /// </summary>
        public static IEnumerable<LogEntry> GetAllLogEntries(Pawn pawn)
        {
            // Сначала пробуем получить из кэша ITab_Pawn_Log
            var cachedEntries = ITab_Pawn_Log_Patch.GetCachedEntries(pawn);
            if (cachedEntries != null && cachedEntries.Any())
            {
                return cachedEntries;
            }

            // Затем пробуем другие способы
            return GetAllLogEntriesInternal(pawn);
        }

        /// <summary>
        /// Внутренний метод получения записей лога
        /// </summary>
        private static IEnumerable<LogEntry> GetAllLogEntriesInternal(Pawn pawn)
        {
            if (pawn == null)
                return Enumerable.Empty<LogEntry>();

            try
            {
                // Способ 1: Через property через reflection
                var logsProperty = AccessTools.Property(typeof(Pawn), "logs");
                if (logsProperty != null)
                {
                    var logs = logsProperty.GetValue(pawn);
                    if (logs != null)
                    {
                        var allEntriesProperty = AccessTools.Property(logs.GetType(), "AllEntries");
                        if (allEntriesProperty != null)
                        {
                            var entries = allEntriesProperty.GetValue(logs);
                            if (entries is IEnumerable<LogEntry> entriesList)
                            {
                                return entriesList;
                            }
                        }

                        // Пробуем метод GetEntries
                        var getEntriesMethod = AccessTools.Method(logs.GetType(), "GetEntries");
                        if (getEntriesMethod != null)
                        {
                            var entries = getEntriesMethod.Invoke(logs, null);
                            if (entries is IEnumerable<LogEntry> entriesList)
                            {
                                return entriesList;
                            }
                        }

                        // Пробуем поле entries
                        var entriesField = AccessTools.Field(logs.GetType(), "entries");
                        if (entriesField != null)
                        {
                            var entries = entriesField.GetValue(logs);
                            if (entries is IEnumerable<LogEntry> entriesList)
                            {
                                return entriesList;
                            }
                            if (entries is System.Collections.IList entriesCollection)
                            {
                                return entriesCollection.Cast<LogEntry>();
                            }
                        }
                    }
                }

                // Способ 3: Через story.logs
                if (pawn.story != null)
                {
                    var logsField = AccessTools.Field(pawn.story.GetType(), "logs");
                    if (logsField != null)
                    {
                        var logs = logsField.GetValue(pawn.story);
                        if (logs != null)
                        {
                            var allEntriesProperty = AccessTools.Property(
                                logs.GetType(),
                                "AllEntries"
                            );
                            if (allEntriesProperty != null)
                            {
                                var entries = allEntriesProperty.GetValue(logs);
                                if (entries is IEnumerable<LogEntry> entriesList)
                                {
                                    return entriesList;
                                }
                            }
                        }
                    }
                }
            }
            catch (System.Exception ex)
            {
                // Логируем ошибку для отладки
                UnityEngine.Debug.LogWarning(
                    $"[AI Images] Error getting log entries for {pawn?.Name}: {ex.Message}"
                );
            }

            // Если все способы не сработали, логируем информацию
            UnityEngine.Debug.Log(
                $"[AI Images] Could not get log entries for {pawn?.Name}. "
                    + $"logs property exists: {AccessTools.Property(typeof(Pawn), "logs") != null}, "
                    + $"story property exists: {AccessTools.Property(typeof(Pawn), "story") != null}"
            );

            return Enumerable.Empty<LogEntry>();
        }
    }
}