//+------------------------------------------------------------------+
//|                                    PatternSystemComplete.mqh     |
//|                   ALL-IN-ONE Pattern Detection System            |
//|   Single file - Guaranteed to compile with zero dependencies     |
//+------------------------------------------------------------------+

#property copyright "QuarterTheory x VIZION"
#property version   "1.00"
#property strict

//================ PATTERN ENUMS ==================//
enum ENUM_PATTERN_TYPE
{
   PATTERN_NONE,
   PATTERN_REVERSAL_BULLISH,
   PATTERN_REVERSAL_BEARISH,
   PATTERN_CONTINUATION_BULL,
   PATTERN_CONTINUATION_BEAR,
   PATTERN_INDECISION
};

enum ENUM_PATTERN_NAME
{
   PATT_HAMMER,
   PATT_SHOOTING_STAR,
   PATT_DOJI,
   PATT_ENGULFING_BULL,
   PATT_ENGULFING_BEAR,
   PATT_MORNING_STAR,
   PATT_EVENING_STAR,
   PATT_THREE_WHITE_SOLDIERS,
   PATT_THREE_BLACK_CROWS
};

enum ENUM_MARKET_STRUCTURE
{
   STRUCTURE_UPTREND,
   STRUCTURE_DOWNTREND,
   STRUCTURE_RANGING
};

//================ STRUCTURES ==================//
struct PatternSignal
{
   ENUM_PATTERN_NAME name;
   ENUM_PATTERN_TYPE type;
   string            name_str;
   int               strength;
   bool              generates_warn;
   bool              generates_praise;
};

struct SwingPoint
{
   double   price;
   datetime time;
   bool     is_high;
   bool     is_higher_high;
   bool     is_lower_high;
   bool     is_higher_low;
   bool     is_lower_low;
};

//================ GLOBAL VARIABLES ==================//
PatternSignal g_Patterns[20];
int g_PatternCount = 0;

SwingPoint g_Swings[30];
int g_SwingCount = 0;

ENUM_MARKET_STRUCTURE g_Structure = STRUCTURE_RANGING;
int g_StructureStrength = 0;

int g_TotalWarns = 0;
int g_TotalPraise = 0;

bool g_ShowMarkers = true;

//+------------------------------------------------------------------+
//| Initialize System                                                |
//+------------------------------------------------------------------+
bool InitializePatternSystem()
{
   g_PatternCount = 0;
   g_SwingCount = 0;
   
   Print("✅ Pattern System Initialized");
   Print("   - 9 core patterns");
   Print("   - Market structure analysis");
   
   return true;
}

//+------------------------------------------------------------------+
//| Main Update Function                                             |
//+------------------------------------------------------------------+
void UpdatePatternSystem()
{
   DetectPatterns();
   AnalyzeStructure();
   GenerateSignals();
}

//+------------------------------------------------------------------+
//| Detect Patterns                                                  |
//+------------------------------------------------------------------+
void DetectPatterns()
{
   g_PatternCount = 0;
   
   MqlRates rates[];
   ArraySetAsSeries(rates, true);
   int copied = CopyRates(_Symbol, _Period, 0, 50, rates);
   
   if(copied < 10) return;
   
   // Check previous closed candle
   int idx = 1;
   
   double o = rates[idx].open;
   double h = rates[idx].high;
   double l = rates[idx].low;
   double c = rates[idx].close;
   double body = MathAbs(c - o);
   double range = h - l;
   double upper_shadow = h - MathMax(o, c);
   double lower_shadow = MathMin(o, c) - l;
   
   if(range == 0) return;
   
   // HAMMER - Bullish reversal
   if(lower_shadow >= 2 * body && upper_shadow <= 0.3 * body && IsBearTrend(rates, idx))
   {
      AddPattern(PATT_HAMMER, PATTERN_REVERSAL_BULLISH, "HAMMER", 85, true, false);
   }
   
   // SHOOTING STAR - Bearish reversal
   if(upper_shadow >= 2 * body && lower_shadow <= 0.3 * body && IsBullTrend(rates, idx))
   {
      AddPattern(PATT_SHOOTING_STAR, PATTERN_REVERSAL_BEARISH, "SHOOTING_STAR", 85, true, false);
   }
   
   // DOJI - Indecision
   if(body / range < 0.1)
   {
      AddPattern(PATT_DOJI, PATTERN_INDECISION, "DOJI", 60, false, false);
   }
   
   // Check two-candle patterns
   if(copied >= 3)
   {
      int curr = 1, prev = 2;
      double o1 = rates[prev].open, c1 = rates[prev].close;
      double o2 = rates[curr].open, c2 = rates[curr].close;
      double body1 = MathAbs(c1 - o1);
      double body2 = MathAbs(c2 - o2);
      
      // BULLISH ENGULFING
      if(c1 < o1 && c2 > o2 && o2 <= c1 && c2 >= o1 && body2 > body1)
      {
         AddPattern(PATT_ENGULFING_BULL, PATTERN_REVERSAL_BULLISH, "BULLISH_ENGULFING", 90, true, false);
      }
      
      // BEARISH ENGULFING
      if(c1 > o1 && c2 < o2 && o2 >= c1 && c2 <= o1 && body2 > body1)
      {
         AddPattern(PATT_ENGULFING_BEAR, PATTERN_REVERSAL_BEARISH, "BEARISH_ENGULFING", 90, true, false);
      }
   }
   
   // Check three-candle patterns
   if(copied >= 4)
   {
      int c1 = 3, c2 = 2, c3 = 1;
      
      // MORNING STAR
      if(rates[c1].close < rates[c1].open &&
         MathAbs(rates[c2].close - rates[c2].open) < (rates[c1].high - rates[c1].low) * 0.3 &&
         rates[c3].close > rates[c3].open &&
         rates[c3].close > (rates[c1].open + rates[c1].close) / 2)
      {
         AddPattern(PATT_MORNING_STAR, PATTERN_REVERSAL_BULLISH, "MORNING_STAR", 95, true, false);
      }
      
      // EVENING STAR
      if(rates[c1].close > rates[c1].open &&
         MathAbs(rates[c2].close - rates[c2].open) < (rates[c1].high - rates[c1].low) * 0.3 &&
         rates[c3].close < rates[c3].open &&
         rates[c3].close < (rates[c1].open + rates[c1].close) / 2)
      {
         AddPattern(PATT_EVENING_STAR, PATTERN_REVERSAL_BEARISH, "EVENING_STAR", 95, true, false);
      }
      
      // THREE WHITE SOLDIERS
      if(rates[c1].close > rates[c1].open &&
         rates[c2].close > rates[c2].open &&
         rates[c3].close > rates[c3].open &&
         rates[c2].close > rates[c1].close &&
         rates[c3].close > rates[c2].close)
      {
         AddPattern(PATT_THREE_WHITE_SOLDIERS, PATTERN_CONTINUATION_BULL, "THREE_WHITE_SOLDIERS", 90, false, true);
      }
      
      // THREE BLACK CROWS
      if(rates[c1].close < rates[c1].open &&
         rates[c2].close < rates[c2].open &&
         rates[c3].close < rates[c3].open &&
         rates[c2].close < rates[c1].close &&
         rates[c3].close < rates[c2].close)
      {
         AddPattern(PATT_THREE_BLACK_CROWS, PATTERN_CONTINUATION_BEAR, "THREE_BLACK_CROWS", 90, false, true);
      }
   }
}

//+------------------------------------------------------------------+
//| Analyze Market Structure                                         |
//+------------------------------------------------------------------+
void AnalyzeStructure()
{
   MqlRates rates[];
   ArraySetAsSeries(rates, true);
   int copied = CopyRates(_Symbol, _Period, 0, 100, rates);
   
   if(copied < 50) return;
   
   // Find swing points
   g_SwingCount = 0;
   
   for(int i = 5; i < 50; i++)
   {
      // Swing high
      bool is_high = true;
      for(int j = 1; j <= 5; j++)
      {
         if(rates[i].high <= rates[i-j].high || rates[i].high <= rates[i+j].high)
         {
            is_high = false;
            break;
         }
      }
      
      if(is_high && g_SwingCount < 30)
      {
         g_Swings[g_SwingCount].price = rates[i].high;
         g_Swings[g_SwingCount].time = rates[i].time;
         g_Swings[g_SwingCount].is_high = true;
         g_SwingCount++;
      }
      
      // Swing low
      bool is_low = true;
      for(int j = 1; j <= 5; j++)
      {
         if(rates[i].low >= rates[i-j].low || rates[i].low >= rates[i+j].low)
         {
            is_low = false;
            break;
         }
      }
      
      if(is_low && g_SwingCount < 30)
      {
         g_Swings[g_SwingCount].price = rates[i].low;
         g_Swings[g_SwingCount].time = rates[i].time;
         g_Swings[g_SwingCount].is_high = false;
         g_SwingCount++;
      }
   }
   
   // Classify structure
   int hh = 0, hl = 0, lh = 0, ll = 0;
   
   for(int i = 0; i < g_SwingCount - 1; i++)
   {
      for(int j = i + 1; j < g_SwingCount; j++)
      {
         if(g_Swings[i].is_high && g_Swings[j].is_high)
         {
            if(g_Swings[i].price > g_Swings[j].price)
            {
               hh++;
               g_Swings[i].is_higher_high = true;
            }
            else
            {
               lh++;
               g_Swings[i].is_lower_high = true;
            }
            break;
         }
         else if(!g_Swings[i].is_high && !g_Swings[j].is_high)
         {
            if(g_Swings[i].price > g_Swings[j].price)
            {
               hl++;
               g_Swings[i].is_higher_low = true;
            }
            else
            {
               ll++;
               g_Swings[i].is_lower_low = true;
            }
            break;
         }
      }
   }
   
   // Determine structure
   if(hh >= 2 && hl >= 1)
   {
      g_Structure = STRUCTURE_UPTREND;
      g_StructureStrength = MathMin((hh * 20) + (hl * 15), 100);
   }
   else if(lh >= 2 && ll >= 1)
   {
      g_Structure = STRUCTURE_DOWNTREND;
      g_StructureStrength = MathMin((lh * 20) + (ll * 15), 100);
   }
   else
   {
      g_Structure = STRUCTURE_RANGING;
      g_StructureStrength = 30;
   }
}

//+------------------------------------------------------------------+
//| Generate Signals                                                 |
//+------------------------------------------------------------------+
void GenerateSignals()
{
   g_TotalWarns = 0;
   g_TotalPraise = 0;
   
   for(int i = 0; i < g_PatternCount; i++)
   {
      if(g_Patterns[i].generates_warn)
         g_TotalWarns++;
      
      if(g_Patterns[i].generates_praise)
         g_TotalPraise++;
      
      if(g_Patterns[i].strength >= 85)
      {
         string type = g_Patterns[i].generates_warn ? "WARN" : 
                      g_Patterns[i].generates_praise ? "PRAISE" : "NEUTRAL";
         Print("🕯️ ", type, " - ", g_Patterns[i].name_str, " [", g_Patterns[i].strength, "%]");
      }
   }
}

//+------------------------------------------------------------------+
//| Helper Functions                                                  |
//+------------------------------------------------------------------+
bool IsBullTrend(const MqlRates &rates[], int idx)
{
   if(idx + 10 >= ArraySize(rates)) return false;
   
   double fast = 0, slow = 0;
   for(int i = idx; i < idx + 5; i++) fast += rates[i].close;
   for(int i = idx; i < idx + 10; i++) slow += rates[i].close;
   
   return (fast / 5) > (slow / 10);
}

bool IsBearTrend(const MqlRates &rates[], int idx)
{
   return !IsBullTrend(rates, idx);
}

void AddPattern(ENUM_PATTERN_NAME name, ENUM_PATTERN_TYPE type, string name_str, 
                int strength, bool warn, bool praise)
{
   if(g_PatternCount >= 20) return;
   
   g_Patterns[g_PatternCount].name = name;
   g_Patterns[g_PatternCount].type = type;
   g_Patterns[g_PatternCount].name_str = name_str;
   g_Patterns[g_PatternCount].strength = strength;
   g_Patterns[g_PatternCount].generates_warn = warn;
   g_Patterns[g_PatternCount].generates_praise = praise;
   g_PatternCount++;
}

//+------------------------------------------------------------------+
//| Public Interface Functions                                        |
//+------------------------------------------------------------------+
int GetTotalWarnCount()
{
   return g_TotalWarns;
}

int GetTotalPraiseCount()
{
   return g_TotalPraise;
}

bool IsUptrend()
{
   return g_Structure == STRUCTURE_UPTREND;
}

bool IsDowntrend()
{
   return g_Structure == STRUCTURE_DOWNTREND;
}

bool IsRanging()
{
   return g_Structure == STRUCTURE_RANGING;
}

int GetStructureStrength()
{
   return g_StructureStrength;
}

string GetStructureString()
{
   switch(g_Structure)
   {
      case STRUCTURE_UPTREND: return "UPTREND (HH+HL)";
      case STRUCTURE_DOWNTREND: return "DOWNTREND (LH+LL)";
      case STRUCTURE_RANGING: return "RANGING";
      default: return "UNKNOWN";
   }
}

bool HasCriticalWarnings()
{
   return g_TotalWarns >= 2;
}

bool ShouldSizeUpTrade()
{
   return g_TotalPraise >= 2 && g_StructureStrength > 70;
}

int GetStructureTradeDirection()
{
   if(IsUptrend() && g_TotalPraise > g_TotalWarns)
      return 1; // Buy
   
   if(IsDowntrend() && g_TotalPraise > g_TotalWarns)
      return -1; // Sell
   
   return 0;
}

string GetSignalSummary()
{
   string summary = "";
   summary += "Structure: " + GetStructureString() + "\n";
   summary += "Strength: " + IntegerToString(g_StructureStrength) + "%\n";
   summary += "Warns: " + IntegerToString(g_TotalWarns) + "\n";
   summary += "Praise: " + IntegerToString(g_TotalPraise) + "\n";
   summary += "Patterns Detected: " + IntegerToString(g_PatternCount) + "\n";
   return summary;
}

void CleanupPatternSystem()
{
   ObjectsDeleteAll(0, "PATTERN_");
   Print("🧹 Pattern System cleaned up");
}

//+------------------------------------------------------------------+
//| END OF PATTERN SYSTEM                                            |
//+------------------------------------------------------------------+