using UnityEngine;
using Yarn.Unity;
using Ichni.Story;

namespace Ichni.Story.YarnFunctions
{
    /// <summary>
    /// 提供可以直接在 Yarn 脚本中调用的全局变量读写指令。
    /// 完全兼容旧系统中的自定义函数（避免旧的 .yarn 报错），
    /// 底层统一指向全新的 StoryVariables 枢纽。
    /// </summary>
    public static class VariableCommands
    {
        [YarnCommand("set_bool")]
        public static void SetBool(string key, bool value)
        {
            StoryVariables.SetBool(key, value);
        }

        [YarnFunction("get_bool")]
        public static bool GetBool(string key)
        {
            return StoryVariables.GetBool(key);
        }
        
        [YarnCommand("set_int")]
        public static void SetInt(string key, int value)
        {
            StoryVariables.SetInt(key, value);
        }

        [YarnCommand("modify_int")]
        public static void ModifyInt(string key, int modification)
        {
            int currentValue = StoryVariables.GetInt(key);
            StoryVariables.SetInt(key, currentValue + modification);
        }
        
        [YarnFunction("get_int")]
        public static int GetInt(string key)
        {
            return StoryVariables.GetInt(key);
        }

        [YarnCommand("set_float")]
        public static void SetFloat(string key, float value)
        {
            StoryVariables.SetFloat(key, value);
        }

        [YarnCommand("modify_float")]
        public static void ModifyFloat(string key, float modification)
        {
            float currentValue = StoryVariables.GetFloat(key);
            StoryVariables.SetFloat(key, currentValue + modification);
        }

        [YarnFunction("get_float")]
        public static float GetFloat(string key)
        {
            return StoryVariables.GetFloat(key);
        }

        [YarnCommand("set_string")]
        public static void SetString(string key, string value)
        {
            StoryVariables.SetString(key, value);
        }

        [YarnFunction("get_string")]
        public static string GetString(string key)
        {
            return StoryVariables.GetString(key);
        }
    }
}