using System;
using System.Collections.Generic;
using System.Linq;
using SoftCircuits.Collections;
using UnityEngine;

namespace SLSFramework.General
{
    public static class DictionaryExtension
    {
        public static void Invoke(this IDictionary<string, PrioritizedAction> dictionary)
        {
            foreach (var action in dictionary.Values)
            {
                action.Invoke();
            }
        }

        public static void Invoke<T>(this IDictionary<string, PrioritizedAction<T>> dictionary, T arg)
        {
            foreach (var action in dictionary.Values)
            {
                action.Invoke(arg);
            }
        }
        
        public static void Invoke<T1, T2>(this IDictionary<string, PrioritizedAction<T1, T2>> dictionary, T1 arg1, T2 arg2)
        {
            foreach (var action in dictionary.Values)
            {
                action.Invoke(arg1, arg2);
            }
        }
        
        public static void Invoke<T1, T2, T3>(this IDictionary<string, PrioritizedAction<T1, T2, T3>> dictionary, T1 arg1, T2 arg2, T3 arg3)
        {
            foreach (var action in dictionary.Values)
            {
                action.Invoke(arg1, arg2, arg3);
            }
        }

        public static void ModifyOrAdd(this IDictionary<string, float> dictionary, string key, float delta)
        {
            if (!dictionary.TryAdd(key, delta))
            {
                dictionary[key] += delta;
            }
        }
        
        /// <summary>
        /// 从字典中获取指定键的值，并将其四舍五入为整数返回。
        /// </summary>
        public static int GetRoundValue(this Dictionary<string, float> dictionary, string key, int defaultValue = 0)
        {
            return dictionary.TryGetValue(key, out float value) ? Mathf.RoundToInt(value) : defaultValue;
        }
        
        /// <summary>
        /// 从字典中获取指定键的值，并将其向下取整为整数返回。
        /// </summary>
        public static int GetFloorValue(this Dictionary<string, float> dictionary, string key, int defaultValue = 0)
        {
            return dictionary.TryGetValue(key, out float value) ? Mathf.FloorToInt(value) : defaultValue;
        }

        /// <summary>
        /// 从字典中获取指定键的原始值。
        /// </summary>
        public static float GetValue(this Dictionary<string, float> dictionary, string key, float defaultValue = 0)
        {
            return dictionary.GetValueOrDefault(key, defaultValue);
        }
        
        /// <summary>
        /// 将源字典中的所有键值对粘贴到目标字典中，避免重复键。
        /// </summary>
        public static void PasteDictionary<T1, T2>(this IDictionary<T1, T2> source, IDictionary<T1, T2> target)
        {
            foreach (var pair in source)
            {
                if (!target.ContainsKey(pair.Key))
                {
                    target[pair.Key] = pair.Value;
                }
                else
                {
                    Debug.LogWarning($"Attribute \"{pair.Key}\" already exists. Skipping duplicate.");
                }
            }
        }
    }

    public static class CheckAndEffectDictionaryExtension
    {
        public static List<Func<bool>> GetChecks(this IDictionary<string, PrioritizedCheckAndEffect> dictionary)
        {
            return dictionary.Values.Select(checkAndEffect => checkAndEffect.check).ToList();
        }
        
        public static List<Action> GetEffects(this IDictionary<string, PrioritizedCheckAndEffect> dictionary)
        {
            return dictionary.Values.Select(checkAndEffect => checkAndEffect.effect).ToList();
        }
        
        public static void InvokeIfAnyConditionChecked(this IDictionary<string, PrioritizedCheckAndEffect> dictionary)
        {
            List<Func<bool>> checks = dictionary.Values.Select(checkAndEffect => checkAndEffect.check).ToList();
            List<Action> effects = dictionary.Values.Select(checkAndEffect => checkAndEffect.effect).ToList();
            if (checks.Any())
            {
                effects.ForEach(effect => effect.Invoke());
            }
        }
    }

    public static class OrderedDictionaryExtension
    {
        /// <summary>
        /// 根据优先级将元素插入OrderedDictionary中对应的位置，保持字典按优先级从高到低排序。
        /// </summary>
        public static void InsertByPriority<T>(this OrderedDictionary<string, T> dictionary, string key, T value) where T : IPrioritized
        {
            if (dictionary.ContainsKey(key))
            {
                Debug.LogWarning($"Key '{key}' already exists in the dictionary. Insertion skipped.");
                return;
            }

            foreach (KeyValuePair<string, T> pair in dictionary)
            {
                if (value.Priority > pair.Value.Priority)
                {
                    int index = dictionary.IndexOf(pair.Key);
                    dictionary.Insert(index, key, value);
                    return;
                }
            }

            dictionary.Add(key, value);
        }
        
        /// <summary>
        /// 将字典中的元素根据优先级重新排序，保持字典按优先级从高到低排序。
        /// </summary>
        public static void Sort<T>(this OrderedDictionary<string, T> dictionary) where T : IPrioritized
        {
            List<KeyValuePair<string,T>> sortedItems = new List<KeyValuePair<string, T>>(dictionary);
            sortedItems.Sort((pairA, pairB) => pairA.Value.CompareTo(pairB.Value));

            dictionary.Clear();
            foreach (KeyValuePair<string, T> item in sortedItems)
            {
                dictionary.Add(item.Key, item.Value);
            }
        }
    }
}