#property copyright "Copyright 2024, Your Name"
#property link      "https://www.yourwebsite.com"
#property version   "1.00"
#property script_show_inputs

input int StartBars = 1000;        // 開始バー（現在から何本前か）
input int EndBars = 0;             // 終了バー（0は現在のバー）
input double minDistance = 0; // 最小間隔,デフォ0.0002
double MinDistance = 0;
input int MinCount = 3;            // 最小本数
input int MaxLines = 50;           // 最大ライン数
input int MinWidth = 2;            // 最小線幅
input int MaxWidth = 5;            // 最大線幅

struct ResistanceLevel
{
   double price;
   int count;
   int importance;
};

//+------------------------------------------------------------------+
//| Script program start function                                    |
//+------------------------------------------------------------------+
void OnStart()
{
   // 古い線を削除
   ObjectsDeleteAll(0, "ResistanceLine_");
   
   //シンボルごとに最小数値を変える
   if (minDistance==0.0){
   MinDistance=0.0002;
   
    if(_Symbol=="USDJPY")
        {
         if (Period()==5)MinDistance=0.0002;
         if (Period()==15)MinDistance=0.001;
         if (Period()==30)MinDistance=0.002;
         if (Period()==16385)MinDistance=0.003;//H1
         if (Period()==16388)MinDistance=0.003;//H4
         if (Period()==16408)MinDistance=0.006;//D1
         if (Period()==32769)MinDistance=0.006;//W1
         if (Period()==49153)MinDistance=0.04;//M1
         }
          
    if(_Symbol=="EURJPY")MinDistance=0.0002;
    if(_Symbol=="GBPJPY")MinDistance=0.0002;
    if(_Symbol=="AUDJPY")MinDistance=0.0002;
    if(_Symbol=="NZDJPY")MinDistance=0.0002;
    if(_Symbol=="CHFJPY")MinDistance=0.0002;
    if(_Symbol=="CADJPY")MinDistance=0.0002;
    if(_Symbol=="CHFJPY")MinDistance=0.0002;
    
    if(_Symbol=="EURUSD")MinDistance=0.0002;
    if(_Symbol=="GBPUSD")MinDistance=0.0002;
    if(_Symbol=="AUDUSD")MinDistance=0.0002;
    if(_Symbol=="GBPUSD")MinDistance=0.0002;
    
    if(_Symbol=="USDCAD")MinDistance=0.0002;   
    if(_Symbol=="USDCHF")MinDistance=0.0002;    
   
    if(_Symbol=="GBPAUD")MinDistance=0.0002;
    if(_Symbol=="USDCAD")MinDistance=0.0002;
    if(_Symbol=="GBPAUD")MinDistance=0.0002;
    if(_Symbol=="EURAUD")MinDistance=0.0002;    
    
    if(_Symbol=="EURGBP")MinDistance=0.0002;
    
    
 
    }
    
    else MinDistance=minDistance;
     
   //Alert (Symbol()+"_"+ Period() + "_" +MinDistance)
   // バーデータを取得
   MqlRates rates[];
   ArraySetAsSeries(rates, true);
   int copied = CopyRates(_Symbol, PERIOD_CURRENT, EndBars, StartBars - EndBars + 1, rates);
   if(copied <= 0)
   {
      Print("データのコピーに失敗しました");
      return;
   }

   // レジスタンス/サポートレベルを抽出
   ResistanceLevel levels[];
   for(int i = 0; i < copied; i++)
   {
      AddLevel(levels, rates[i].high);
      AddLevel(levels, rates[i].low);
   }

   // 重要度を計算
   CalculateImportance(levels);

   // 重要度の高いレベルのみを選択
   ResistanceLevel importantLevels[];
   for(int i = 0; i < ArraySize(levels); i++)
   {
      if(levels[i].importance > 1)
      {
         ArrayResize(importantLevels, ArraySize(importantLevels) + 1);
         importantLevels[ArraySize(importantLevels) - 1] = levels[i];
      }
   }

   // 重要なレベルの重要度を再計算
   CalculateImportance(importantLevels);

   // 水平線を描画
   DrawHorizontalLines(importantLevels);

   ChartRedraw();
   
   Print(Symbol()+"_"+ Period() + "_" +MinDistance);
   

}

//+------------------------------------------------------------------+
//| レベルを追加または更新                                           |
//+------------------------------------------------------------------+
void AddLevel(ResistanceLevel &levels[], double price)
{
   for(int i = 0; i < ArraySize(levels); i++)
   {
      if(MathAbs(levels[i].price - price) < MinDistance)
      {
         levels[i].count++;
         return;
      }
   }
   
   int size = ArraySize(levels);
   ArrayResize(levels, size + 1);
   levels[size].price = price;
   levels[size].count = 1;
   levels[size].importance = 1;
}

//+------------------------------------------------------------------+
//| 重要度を計算                                                     |
//+------------------------------------------------------------------+
void CalculateImportance(ResistanceLevel &levels[])
{
   for(int i = 0; i < ArraySize(levels); i++)
   {
      if(levels[i].count >= MinCount)
      {
         int nearCount = 0;
         for(int j = 0; j < ArraySize(levels); j++)
         {
            if(i != j && MathAbs(levels[i].price - levels[j].price) < MinDistance * 5)
            {
               nearCount += levels[j].count;
            }
         }
         levels[i].importance = 1 + MathMin(nearCount / MinCount, 4);
      }
   }
}

//+------------------------------------------------------------------+
//| 水平線を描画                                                     |
//+------------------------------------------------------------------+
void DrawHorizontalLines(const ResistanceLevel &levels[])
{
   int maxImportance = 0;
   for(int i = 0; i < ArraySize(levels); i++)
   {
      if(levels[i].importance > maxImportance)
         maxImportance = levels[i].importance;
   }

   int drawnLines = 0;
   for(int i = 0; i < ArraySize(levels) && drawnLines < MaxLines; i++)
   {
      if(levels[i].importance > 1)
      {
         string name = "ResistanceLine_" + IntegerToString(i);
         ObjectCreate(0, name, OBJ_HLINE, 0, 0, levels[i].price);
         ObjectSetInteger(0, name, OBJPROP_COLOR, clrYellow);
         
         // 重要度に応じて線の太さを調整
         int width = MinWidth + (MaxWidth - MinWidth) * (levels[i].importance - 1) / (maxImportance - 1);
         ObjectSetInteger(0, name, OBJPROP_WIDTH, width-1);
         
         ObjectSetInteger(0, name, OBJPROP_STYLE, STYLE_SOLID);
         drawnLines++;
      }
   }
}