//+------------------------------------------------------------------+
//|                     BinanceFeedBridge.mq5                        |
//|        Feeds Binance prices into custom symbols *.BIN            |
//+------------------------------------------------------------------+
#property strict

// === INPUTS =======================================================
// Same list as in Create_Binance_Symbols.mq5
input string InpSymbolsList =
"0GUSDT,1000000BOBUSDT,1000000MOGUSDT,1000BONKUSDT,1000CATUSDT,1000CHEEMSUSDT,1000FLOKIUSDT,1000LUNCUSDT,1000PEPEUSDT,1000RATSUSDT,1000SATSUSDT,1000SHIBUSDT,1000WHYUSDT,1000XECUSDT,1000XUSDT,1INCHUSDT,1MBABYDOGEUSDT,2ZUSDT,42USDT,4USDT,A2ZUSDT,AAVEUSDT,ACEUSDT,ACHUSDT,ACTUSDT,ACXUSDT,ADAUSDT,AERGOUSDT,AEROUSDT,AEVOUSDT,AGIXUSDT,AGLDUSDT,AGTUSDT,AI16ZUSDT,AIAUSDT,AINUSDT,AIOTUSDT,AIOUSDT,AIUSDT,AIXBTUSDT,AKEUSDT,AKTUSDT,ALCHUSDT,ALGOUSDT,ALICEUSDT,ALLOUSDT,ALLUSDT,ALPACAUSDT,ALPHAUSDT,ALPINEUSDT,ALTUSDT,AMBUSDT,ANIMEUSDT,ANKRUSDT,APEUSDT,API3USDT,APRUSDT,APTUSDT,ARBUSDT,ARCUSDT,ARIAUSDT,ARKMUSDT,ARKUSDT,ARPAUSDT,ARUSDT,ASRUSDT,ASTERUSDT,ASTRUSDT,ATAUSDT,ATHUSDT,ATOMUSDT,ATUSDT,AUCTIONUSDT,AUSDT,AVAAIUSDT,AVAUSDT,AVAXUSDT,AVNTUSDT,AWEUSDT,AXLUSDT,AXSUSDT,B2USDT,B3USDT,BABYUSDT,BADGERUSDT,BAKEUSDT,BALUSDT,BANANAS31USDT,BANANAUSDT,BANDUSDT,BANKUSDT,BANUSDT,BARDUSDT,BASUSDT,BATUSDT,BBUSDT,BCHUSDT,BDXNUSDT,BEAMXUSDT,BEATUSDT,BELUSDT,BERAUSDT,BICOUSDT,BIDUSDT,BIGTIMEUSDT,BIOUSDT,BLESSUSDT,BLUAIUSDT,BLURUSDT,BLZUSDT,BMTUSDT,BNBUSDT,BNTUSDT,BNXUSDT,BOMEUSDT,BONDUSDT,BRETTUSDT,BROCCOLI714USDT,BROCCOLIF3BUSDT,BRUSDT,BSVUSDT,BSWUSDT,BTCDOMUSDT,BTCSTUSDT,BTCUSDT,BTRUSDT,BULLAUSDT,BUSDT,C98USDT,CAKEUSDT,CARVUSDT,CATIUSDT,CCUSDT,CELOUSDT,CELRUSDT,CETUSUSDT,CFXUSDT,CGPTUSDT,CHESSUSDT,CHILLGUYUSDT,CHRUSDT,CHZUSDT,CKBUSDT,CLANKERUSDT,CLOUSDT,COAIUSDT,COMBOUSDT,COMMONUSDT,COMPUSDT,COOKIEUSDT,COSUSDT,COTIUSDT,COWUSDT,CROSSUSDT,CRVUSDT,CTKUSDT,CTSIUSDT,CUDISUSDT,CUSDT,CVCUSDT,CVXUSDT,CYBERUSDT,DAMUSDT,DARUSDT,DASHUSDT,DEEPUSDT,DEFIUSDT,DEGENUSDT,DEGOUSDT,DENTUSDT,DEXEUSDT,DFUSDT,DGBUSDT,DIAUSDT,DMCUSDT,DODOXUSDT,DOGEUSDT,DOGSUSDT,DOLOUSDT,DOODUSDT,DOTUSDT,DRIFTUSDT,DUSDT,DUSKUSDT,DYDXUSDT,DYMUSDT,EDENUSDT,EDUUSDT,EGLDUSDT,EIGENUSDT,ENAUSDT,ENJUSDT,ENSOUSDT,ENSUSDT,EPICUSDT,EPTUSDT,ERAUSDT,ESPORTSUSDT,ETCUSDT,ETHFIUSDT,ETHUSDT,ETHWUSDT,EULUSDT,EVAAUSDT,FARTCOINUSDT,FETUSDT,FFUSDT,FHEUSDT,FIDAUSDT,FILUSDT,FIOUSDT,FISUSDT,FLMUSDT,FLOCKUSDT,FLOWUSDT,FLUIDUSDT,FLUXUSDT,FOLKSUSDT,FORMUSDT,FORTHUSDT,FTMUSDT,FTTUSDT,FUNUSDT,FUSDT,FXSUSDT,GALAUSDT,GASUSDT,GHSTUSDT,GIGGLEUSDT,GLMRUSDT,GLMUSDT,GMTUSDT,GMXUSDT,GOATUSDT,GPSUSDT,GRASSUSDT,GRIFFAINUSDT,GRTUSDT,GTCUSDT,GUNUSDT,GUSDT,HAEDALUSDT,HANAUSDT,HBARUSDT,HEIUSDT,HEMIUSDT,HFTUSDT,HIFIUSDT,HIGHUSDT,HIPPOUSDT,HIVEUSDT,HMSTRUSDT,HOLOUSDT,HOMEUSDT,HOOKUSDT,HOTUSDT,HUMAUSDT,HUSDT,HYPERUSDT,HYPEUSDT,ICNTUSDT,ICPUSDT,ICXUSDT,IDEXUSDT,IDOLUSDT,IDUSDT,ILVUSDT,IMXUSDT,INITUSDT,INJUSDT,INUSDT,IOSTUSDT,IOTAUSDT,IOTXUSDT,IOUSDT,IPUSDT,JASMYUSDT,JCTUSDT,JELLYJELLYUSDT,JOEUSDT,JSTUSDT,JTOUSDT,JUPUSDT,KAIAUSDT,KAITOUSDT,KASUSDT,KAVAUSDT,KDAUSDT,KERNELUSDT,KEYUSDT,KGENUSDT,KITEUSDT,KLAYUSDT,KMNOUSDT,KNCUSDT,KOMAUSDT,KSMUSDT,LABUSDT,LAUSDT,LAYERUSDT,LDOUSDT,LEVERUSDT,LIGHTUSDT,LINAUSDT,LINEAUSDT,LINKUSDT,LISTAUSDT,LITUSDT,LOKAUSDT,LOOMUSDT,LPTUSDT,LQTYUSDT,LRCUSDT,LSKUSDT,LTCUSDT,LUMIAUSDT,LUNA2USDT,LYNUSDT,MAGICUSDT,MANAUSDT,MANTAUSDT,MASKUSDT,MAVIAUSDT,MAVUSDT,MBOXUSDT,MDTUSDT,MELANIAUSDT,MEMEFIUSDT,MEMEUSDT,MERLUSDT,METISUSDT,METUSDT,MEUSDT,MEWUSDT,MILKUSDT,MINAUSDT,MIRAUSDT,MITOUSDT,MKRUSDT,MLNUSDT,MMTUSDT,MOCAUSDT,MONUSDT,MOODENGUSDT,MORPHOUSDT,MOVEUSDT,MOVRUSDT,MTLUSDT,MUBARAKUSDT,MUSDT,MYROUSDT,MYXUSDT,NAORISUSDT,NEARUSDT,NEIROETHUSDT,NEIROUSDT,NEOUSDT,NEWTUSDT,NFPUSDT,NILUSDT,NKNUSDT,NMRUSDT,NOMUSDT,NOTUSDT,NTRNUSDT,NULSUSDT,NXPCUSDT,OBOLUSDT,OCEANUSDT,OGNUSDT,OGUSDT,OLUSDT,OMGUSDT,OMNIUSDT,OMUSDT,ONDOUSDT,ONEUSDT,ONGUSDT,ONTUSDT,ONUSDT,OPENUSDT,OPUSDT,ORBSUSDT,ORCAUSDT,ORDERUSDT,ORDIUSDT,OXTUSDT,PARTIUSDT,PAXGUSDT,PENDLEUSDT,PENGUUSDT,PEOPLEUSDT,PERPUSDT,PHAUSDT,PHBUSDT,PIEVERSEUSDT,PIPPINUSDT,PIXELUSDT,PLAYUSDT,PLUMEUSDT,PNUTUSDT,POLUSDT,POLYXUSDT,PONKEUSDT,POPCATUSDT,PORT3USDT,PORTALUSDT,POWRUSDT,PROMPTUSDT,PROMUSDT,PROVEUSDT,PTBUSDT,PUFFERUSDT,PUMPBTCUSDT,PUMPUSDT,PUNDIXUSDT,PYTHUSDT,QNTUSDT,QTUMUSDT,QUICKUSDT,QUSDT,RADUSDT,RAREUSDT,RAYSOLUSDT,RAYUSDT,RDNTUSDT,RECALLUSDT,REDUSDT,REEFUSDT,REIUSDT,RENDERUSDT,RENUSDT,RESOLVUSDT,REZUSDT,RIFUSDT,RIVERUSDT,RLCUSDT,RONINUSDT,ROSEUSDT,RPLUSDT,RSRUSDT,RUNEUSDT,RVNUSDT,RVVUSDT,SAFEUSDT,SAGAUSDT,SAHARAUSDT,SANDUSDT,SANTOSUSDT,SAPIENUSDT,SCRTUSDT,SCRUSDT,SCUSDT,SEIUSDT,SENTUSDT,SFPUSDT,SHELLUSDT,SIGNUSDT,SIRENUSDT,SKATEUSDT,SKLUSDT,SKYAIUSDT,SKYUSDT,SLERFUSDT,SLPUSDT,SNTUSDT,SNXUSDT,SOLUSDT,SOLVUSDT,SOMIUSDT,SONICUSDT,SOONUSDT,SOPHUSDT,SPELLUSDT,SPKUSDT,SPXUSDT,SQDUSDT,SSVUSDT,STABLEUSDT,STBLUSDT,STEEMUSDT,STGUSDT,STMXUSDT,STORJUSDT,STOUSDT,STPTUSDT,STRAXUSDT,STRKUSDT,STXUSDT,SUIUSDT,SUNUSDT,SUPERUSDT,SUSDT,SUSHIUSDT,SWARMSUSDT,SWELLUSDT,SXPUSDT,SXTUSDT,SYNUSDT,SYRUPUSDT,SYSUSDT,TACUSDT,TAGUSDT,TAIKOUSDT,TAKEUSDT,TANSSIUSDT,TAOUSDT,TAUSDT,THETAUSDT,THEUSDT,TIAUSDT,TLMUSDT,TNSRUSDT,TOKENUSDT,TONUSDT,TOSHIUSDT,TOWNSUSDT,TRADOORUSDT,TRBUSDT,TREEUSDT,TROYUSDT,TRUMPUSDT,TRUSTUSDT,TRUTHUSDT,TRUUSDT,TRXUSDT,TSTUSDT,TURBOUSDT,TURTLEUSDT,TUSDT,TUTUSDT,TWTUSDT,UAIUSDT,UBUSDT,UMAUSDT,UNFIUSDT,UNIUSDT,USDCUSDT,USELESSUSDT,USTCUSDT,USUALUSDT,UXLINKUSDT,VANAUSDT,VANRYUSDT,VELODROMEUSDT,VELVETUSDT,VETUSDT,VFYUSDT,VICUSDT,VIDTUSDT,VINEUSDT,VIRTUALUSDT,VOXELUSDT,VTHOUSDT,VVVUSDT,WALUSDT,WAVESUSDT,WAXPUSDT,WCTUSDT,WIFUSDT,WLDUSDT,WLFIUSDT,WOOUSDT,WUSDT,XAIUSDT,XANUSDT,XCNUSDT,XEMUSDT,XLMUSDT,XMRUSDT,XNYUSDT,XPINUSDT,XPLUSDT,XRPUSDT,XTZUSDT,XVGUSDT,XVSUSDT,YALAUSDT,YBUSDT,YFIUSDT,YGGUSDT,ZBTUSDT,ZECUSDT,ZENUSDT,ZEREBROUSDT,ZETAUSDT,ZILUSDT,ZKCUSDT,ZKJUSDT,ZKUSDT,ZORAUSDT,ZRCUSDT,ZROUSDT,ZRXUSDT";

// Suffix of custom symbols (must match script)
input string InpSuffix    = "";
// Update interval in seconds
input int    InpUpdateSec = 2;

// === GLOBALS ======================================================
string g_urlFutures = "https://fapi.binance.com/fapi/v1/ticker/bookTicker?symbol=";
string g_symbols[];
bool   g_skip[];
int    g_symbolCount = 0;
int    g_updateSec   = 1;

//------------------------------------------------------------------
//  Helper: extract "field":"value" from JSON
//------------------------------------------------------------------
double JsonGetPrice(const string json, const string field)
{
   string key = "\"" + field + "\":\"";
   int start  = StringFind(json, key);
   if(start == -1)
      return 0.0;

   start += StringLen(key);
   int end = StringFind(json, "\"", start);
   if(end == -1)
      return 0.0;

   string val = StringSubstr(json, start, end - start);
   return (double)StringToDouble(val);
}

//------------------------------------------------------------------
//  Request price for one symbol from Binance Futures
//------------------------------------------------------------------
bool GetBinanceBidAsk(const string baseSymbol,
                      double &bid, double &ask,
                      bool &invalidSymbol)
{
   invalidSymbol = false;

   string url = g_urlFutures + baseSymbol;

   char   data[];      // empty body for GET
   char   result[];
   string result_headers;

   ResetLastError();
   int res = WebRequest("GET", url, "", 5000, data, result, result_headers);
   if(res == -1)
   {
      PrintFormat("WebRequest error for %s: %d", baseSymbol, GetLastError());
      return false;
   }
   if(res <= 0)
   {
      PrintFormat("No data for %s (res=%d)", baseSymbol, res);
      return false;
   }

   string json = CharArrayToString(result, 0, res);

   // Binance explicit error
   if(StringFind(json, "\"code\":-1121") != -1 ||
      StringFind(json, "Invalid symbol")   != -1)
   {
      invalidSymbol = true;
      PrintFormat("Symbol %s is invalid on Binance Futures. Skipping from now on. JSON=%s",
                  baseSymbol, json);
      return false;
   }

   bid = JsonGetPrice(json, "bidPrice");
   ask = JsonGetPrice(json, "askPrice");

   // 🔴 FIX: symbols like 1000XUSDT return 0 bid/ask – treat as inactive & skip forever
   if(bid <= 0.0 || ask <= 0.0)
   {
      invalidSymbol = true;
      PrintFormat("Symbol %s has zero bid/ask on Binance (inactive). Skipping from now on. JSON=%s",
                  baseSymbol, json);
      return false;
   }

   return true;
}

//------------------------------------------------------------------
//  Push one tick into a custom symbol
//------------------------------------------------------------------
bool PushTickToCustom(const string customSymbol, double bid, double ask)
{
   MqlTick tick;
   ZeroMemory(tick);

   datetime now = TimeCurrent();

   tick.time     = now;
   tick.time_msc = (ulong)now * 1000;
   tick.bid      = bid;
   tick.ask      = ask;
   tick.last     = (bid + ask) / 2.0;
   tick.volume   = 0;
   tick.flags    = TICK_FLAG_BID | TICK_FLAG_ASK | TICK_FLAG_LAST;

   MqlTick ticks[1];
   ticks[0] = tick;

   int added = CustomTicksAdd(customSymbol, ticks);
   if(added != 1)
   {
      PrintFormat("CustomTicksAdd failed for %s (added=%d)", customSymbol, added);
      return false;
   }

   return true;
}

//------------------------------------------------------------------
//  OnInit: split list and set timer
//------------------------------------------------------------------
int OnInit()
{
   ushort sep = ',';
   g_symbolCount = StringSplit(InpSymbolsList, sep, g_symbols);
   if(g_symbolCount <= 0)
   {
      Print("No symbols in InpSymbolsList.");
      return(INIT_PARAMETERS_INCORRECT);
   }

   ArrayResize(g_skip, g_symbolCount);
   ArrayInitialize(g_skip, false);

   g_updateSec = (InpUpdateSec < 1 ? 1 : InpUpdateSec);
   EventSetTimer(g_updateSec);

   for(int i = 0; i < g_symbolCount; i++)
   {
      string base   = g_symbols[i];
      if(base == "")
         continue;

      string custom = base + InpSuffix;
      PrintFormat("Will feed custom symbol %s from Binance %s", custom, base);
   }

   Print("BinanceFeedBridge initialized. Timer: ", g_updateSec, " seconds.");
   return(INIT_SUCCEEDED);
}

//------------------------------------------------------------------
//  OnDeinit
//------------------------------------------------------------------
void OnDeinit(const int reason)
{
   EventKillTimer();
   Print("BinanceFeedBridge deinitialized.");
}

//------------------------------------------------------------------
//  OnTimer: update all valid symbols
//------------------------------------------------------------------
void OnTimer()
{
   for(int i = 0; i < g_symbolCount; i++)
   {
      if(g_skip[i])
         continue;  // already marked invalid/inactive

      string base   = g_symbols[i];
      if(base == "")
         continue;

      string custom = base + InpSuffix;

      double bid = 0.0, ask = 0.0;
      bool   invalid = false;

      if(!GetBinanceBidAsk(base, bid, ask, invalid))
      {
         if(invalid)
            g_skip[i] = true; // mark & never request again
         continue;
      }

      PushTickToCustom(custom, bid, ask);
   }
}