import 'package:equatable/equatable.dart';

enum DriftStatus {
  onTrack,
  trailingActive,
  driftWarning,
  exitAlert,
}

class TradeHourlyUpdateModel extends Equatable {
  final String recommendation;
  final double currentPrice;
  final double? suggestedStopLoss;
  final double? suggestedTakeProfit;
  final double vixValue;
  final String reasoning;
  final DateTime timestamp;

  const TradeHourlyUpdateModel({
    required this.recommendation,
    required this.currentPrice,
    this.suggestedStopLoss,
    this.suggestedTakeProfit,
    this.vixValue = 0.0,
    required this.reasoning,
    required this.timestamp,
  });

  factory TradeHourlyUpdateModel.fromJson(Map<String, dynamic> json) {
    double parseDbl(dynamic val) {
      if (val == null) return 0.0;
      if (val is num) return val.toDouble();
      return double.tryParse(val.toString()) ?? 0.0;
    }

    DateTime ts = DateTime.now();
    final tsStr = (json['timestamp'] ?? json['Timestamp'])?.toString();
    if (tsStr != null && tsStr.isNotEmpty) {
      ts = DateTime.tryParse(tsStr) ?? DateTime.now();
    }

    return TradeHourlyUpdateModel(
      recommendation: (json['recommendation'] ?? json['Recommendation'])?.toString() ?? 'Hold',
      currentPrice: parseDbl(json['currentPrice'] ?? json['CurrentPrice']),
      suggestedStopLoss: json['suggestedStopLoss'] != null ? parseDbl(json['suggestedStopLoss'] ?? json['SuggestedStopLoss']) : null,
      suggestedTakeProfit: json['suggestedTakeProfit'] != null ? parseDbl(json['suggestedTakeProfit'] ?? json['SuggestedTakeProfit']) : null,
      vixValue: parseDbl(json['vixValue'] ?? json['VixValue']),
      reasoning: (json['reasoning'] ?? json['Reasoning'])?.toString() ?? '',
      timestamp: ts,
    );
  }

  @override
  List<Object?> get props => [recommendation, currentPrice, suggestedStopLoss, suggestedTakeProfit, reasoning, timestamp];
}

class TradeModel extends Equatable {
  final String id;
  final String analysisId;
  final String status;
  final bool isGlobalProposal;
  final String userId;
  final String symbol;
  final String isin;
  final String companyName;
  final String sector;
  final String signalType;
  final double entryPrice;
  final double actualEntryPrice;
  final double currentPrice;
  final double stopLoss;
  final double takeProfit;
  final double positionSize;
  final double leverageUsed;
  final double pnlAbsolute;
  final double pnlPercent;
  final String reasoning;
  final String technicalRationale;
  final String fundamentalRationale;
  final String riskWarning;
  final double winRate;
  final String timeframe;
  final String instrumentType;
  final String assetType;
  final bool hasCfd;
  final List<String> derivativeProductCategories;
  final String derivativeIsin;
  final DateTime? createdAt;
  
  final String riskTolerance;
  final double vixValue;
  final String vixRegime;
  final List<double> takeProfitTargets;
  final double maxLeverage;
  final double entryZoneMin;
  final double entryZoneMax;
  final double entryFee;
  final double exitFee;
  final double quantity;

  final String closeReason;
  final DateTime? userExitTimestamp;
  final bool hasPendingExitAlert;
  final String pendingExitReason;
  final List<TradeHourlyUpdateModel> hourlyUpdates;

  const TradeModel({
    required this.id,
    this.analysisId = '',
    this.status = 'Active',
    this.isGlobalProposal = false,
    this.userId = '',
    required this.symbol,
    this.isin = '',
    this.companyName = '',
    this.sector = '',
    required this.signalType,
    required this.entryPrice,
    this.actualEntryPrice = 0.0,
    this.currentPrice = 0.0,
    required this.stopLoss,
    required this.takeProfit,
    this.positionSize = 0.0,
    this.leverageUsed = 1.0,
    this.pnlAbsolute = 0.0,
    this.pnlPercent = 0.0,
    this.reasoning = '',
    this.technicalRationale = '',
    this.fundamentalRationale = '',
    this.riskWarning = '',
    this.winRate = 50.0,
    this.timeframe = '1D',
    this.instrumentType = 'Stock',
    this.assetType = 'stock',
    this.hasCfd = false,
    this.derivativeProductCategories = const [],
    this.derivativeIsin = '',
    this.createdAt,
    this.riskTolerance = 'Moderate',
    this.vixValue = 0.0,
    this.vixRegime = 'Normal',
    this.takeProfitTargets = const [],
    this.maxLeverage = 1.0,
    this.entryZoneMin = 0.0,
    this.entryZoneMax = 0.0,
    this.entryFee = 0.0,
    this.exitFee = 0.0,
    this.quantity = 0.0,
    this.closeReason = '',
    this.userExitTimestamp,
    this.hasPendingExitAlert = false,
    this.pendingExitReason = '',
    this.hourlyUpdates = const [],
  });

  bool get isActive => status.toLowerCase() == 'active';
  bool get isClosed => status.toLowerCase() == 'closed';
  bool get isRejected => status.toLowerCase() == 'rejected';
  bool get isProposed => (status.toLowerCase() == 'proposed' || isGlobalProposal) && !isRejected && !isActive && !isClosed;

  DriftStatus get driftStatus {
    if (hasPendingExitAlert) return DriftStatus.exitAlert;
    if (hourlyUpdates.any((u) => u.recommendation.toLowerCase().contains('adjustsl') || u.recommendation.toLowerCase().contains('trailing'))) {
      return DriftStatus.trailingActive;
    }
    if (calculatedPnlPct < -3.5) return DriftStatus.driftWarning;
    return DriftStatus.onTrack;
  }

  double get effectiveCurrentPrice {
    if (currentPrice > 0) return currentPrice;
    if (actualEntryPrice > 0) return actualEntryPrice;
    return entryPrice;
  }

  double get actualExitPrice => currentPrice;

  double get calculatedPnlAbs {
    if (isClosed && pnlAbsolute != 0) return pnlAbsolute;
    final curr = currentPrice;
    if (curr <= 0) return pnlAbsolute;
    final entry = actualEntryPrice > 0 ? actualEntryPrice : entryPrice;
    if (entry <= 0) return 0.0;
    final isShort = signalType == 'SELL' || signalType == 'SHORT';
    final rawMove = isShort ? ((entry - curr) / entry) : ((curr - entry) / entry);
    final posSize = positionSize > 0 ? positionSize : (quantity > 0 ? quantity * entry : entry);
    final lev = leverageUsed > 0 ? leverageUsed : 1.0;
    final fees = entryFee + exitFee;
    return (rawMove * posSize * lev) - fees;
  }

  double get calculatedPnlPct {
    if (isClosed && pnlPercent != 0) return pnlPercent;
    final pnlAbs = calculatedPnlAbs;
    final posSize = positionSize > 0 ? positionSize : (actualEntryPrice > 0 ? actualEntryPrice : (entryPrice > 0 ? entryPrice : 1.0));
    if (posSize <= 0) return 0.0;
    return (pnlAbs / posSize) * 100.0;
  }

  double calculateLivePnlAbs(double livePrice) {
    if (isClosed && pnlAbsolute != 0) return pnlAbsolute;
    final curr = livePrice > 0 ? livePrice : currentPrice;
    if (curr <= 0) return pnlAbsolute;
    final entry = actualEntryPrice > 0 ? actualEntryPrice : entryPrice;
    if (entry <= 0) return 0.0;
    final isShort = signalType == 'SELL' || signalType == 'SHORT';
    final rawMove = isShort ? ((entry - curr) / entry) : ((curr - entry) / entry);
    final posSize = positionSize > 0 ? positionSize : (quantity > 0 ? quantity * entry : entry);
    final lev = leverageUsed > 0 ? leverageUsed : 1.0;
    final fees = entryFee + exitFee;
    return (rawMove * posSize * lev) - fees;
  }

  double calculateLivePnlPct(double livePrice) {
    if (isClosed && pnlPercent != 0) return pnlPercent;
    final pnlAbs = calculateLivePnlAbs(livePrice);
    final posSize = positionSize > 0 ? positionSize : (actualEntryPrice > 0 ? actualEntryPrice : (entryPrice > 0 ? entryPrice : 1.0));
    if (posSize <= 0) return 0.0;
    return (pnlAbs / posSize) * 100.0;
  }

  factory TradeModel.fromJson(Map<String, dynamic> json) {
    double parseDbl(dynamic val) {
      if (val == null) return 0.0;
      if (val is num) return val.toDouble();
      return double.tryParse(val.toString()) ?? 0.0;
    }

    final idVal = (json['tradeId'] ?? json['TradeId'] ?? json['id'] ?? json['Id'])?.toString() ?? '';
    final sig = (json['signalType'] ?? json['SignalType'] ?? json['side'] ?? json['Side'])?.toString() ?? 'BUY';
    final entry = parseDbl(json['entryPrice'] ?? json['EntryPrice']);
    final actualEntry = parseDbl(json['actualEntryPrice'] ?? json['ActualEntryPrice']);
    final currPrice = parseDbl(json['currentPrice'] ?? json['CurrentPrice'] ?? json['price'] ?? json['Price']);
    final sl = parseDbl(json['stopLoss'] ?? json['StopLoss']);
    final tp = parseDbl(json['takeProfit'] ?? json['TakeProfit']);
    final pnlAbs = parseDbl(json['pnlAbsolute'] ?? json['PnlAbsolute'] ?? json['pnl'] ?? json['Pnl']);
    final pnlPct = parseDbl(json['pnlPercent'] ?? json['PnlPercent']);

    DateTime? dt;
    final createdStr = (json['createdAt'] ?? json['CreatedAt'])?.toString();
    if (createdStr != null && createdStr.isNotEmpty) {
      dt = DateTime.tryParse(createdStr);
    }

    DateTime? exitDt;
    final exitStr = (json['userExitTimestamp'] ?? json['UserExitTimestamp'])?.toString();
    if (exitStr != null && exitStr.isNotEmpty) {
      exitDt = DateTime.tryParse(exitStr);
    }

    List<TradeHourlyUpdateModel> updates = [];
    final rawUpdates = json['hourlyUpdates'] ?? json['HourlyUpdates'];
    if (rawUpdates is List) {
      updates = rawUpdates.map((u) => TradeHourlyUpdateModel.fromJson(Map<String, dynamic>.from(u))).toList();
    }

    return TradeModel(
      id: idVal,
      analysisId: (json['analysisId'] ?? json['AnalysisId'])?.toString() ?? '',
      status: (json['status'] ?? json['Status'])?.toString() ?? 'Active',
      isGlobalProposal: json['isGlobalProposal'] == true || json['IsGlobalProposal'] == true,
      userId: (json['userId'] ?? json['UserId'])?.toString() ?? '',
      symbol: (json['symbol'] ?? json['Symbol'])?.toString() ?? 'UNKNOWN',
      isin: (json['isin'] ?? json['Isin'])?.toString() ?? '',
      companyName: (json['companyName'] ?? json['CompanyName'])?.toString() ?? '',
      sector: (json['sector'] ?? json['Sector'])?.toString() ?? '',
      signalType: sig.toUpperCase(),
      entryPrice: entry,
      actualEntryPrice: actualEntry,
      currentPrice: currPrice,
      stopLoss: sl,
      takeProfit: tp,
      positionSize: parseDbl(json['positionSize'] ?? json['PositionSize']),
      leverageUsed: parseDbl(json['leverageUsed'] ?? json['LeverageUsed']) == 0 ? 1.0 : parseDbl(json['leverageUsed'] ?? json['LeverageUsed']),
      pnlAbsolute: pnlAbs,
      pnlPercent: pnlPct,
      reasoning: (json['reasoning'] ?? json['Reasoning'])?.toString() ?? '',
      technicalRationale: (json['technicalRationale'] ?? json['TechnicalRationale'])?.toString() ?? '',
      fundamentalRationale: (json['fundamentalRationale'] ?? json['FundamentalRationale'])?.toString() ?? '',
      riskWarning: (json['riskWarning'] ?? json['RiskWarning'])?.toString() ?? '',
      winRate: parseDbl(json['winRate'] ?? json['WinRate']),
      timeframe: (json['timeframe'] ?? json['Timeframe'])?.toString() ?? '1D',
      instrumentType: (json['instrumentType'] ?? json['InstrumentType'])?.toString() ?? 'Stock',
      assetType: (json['assetType'] ?? json['AssetType'])?.toString() ?? 'stock',
      hasCfd: json['hasCfd'] == true || json['HasCfd'] == true,
      derivativeProductCategories: (json['derivativeProductCategories'] ?? json['DerivativeProductCategories']) is List
          ? ((json['derivativeProductCategories'] ?? json['DerivativeProductCategories']) as List).map((e) => e.toString()).toList()
          : const [],
      derivativeIsin: (json['derivativeIsin'] ?? json['DerivativeIsin'] ?? json['knockoutIsin'] ?? json['KnockoutIsin'])?.toString() ?? '',
      createdAt: dt,
      riskTolerance: (json['riskTolerance'] ?? json['RiskTolerance'])?.toString() ?? 'Moderate',
      vixValue: parseDbl(json['vixValue'] ?? json['VixValue']),
      vixRegime: (json['vixRegime'] ?? json['VixRegime'])?.toString() ?? 'Normal',
      takeProfitTargets: (json['takeProfitTargets'] ?? json['TakeProfitTargets']) is List
          ? ((json['takeProfitTargets'] ?? json['TakeProfitTargets']) as List).map((e) => parseDbl(e)).toList()
          : [],
      maxLeverage: parseDbl(json['maxLeverage'] ?? json['MaxLeverage']),
      entryZoneMin: parseDbl(json['entryZoneMin'] ?? json['EntryZoneMin']),
      entryZoneMax: parseDbl(json['entryZoneMax'] ?? json['EntryZoneMax']),
      entryFee: parseDbl(json['entryFee'] ?? json['EntryFee']),
      exitFee: parseDbl(json['exitFee'] ?? json['ExitFee']),
      quantity: parseDbl(json['quantity'] ?? json['Quantity']),
      closeReason: (json['closeReason'] ?? json['CloseReason'])?.toString() ?? '',
      userExitTimestamp: exitDt,
      hasPendingExitAlert: json['hasPendingExitAlert'] == true || json['HasPendingExitAlert'] == true,
      pendingExitReason: (json['pendingExitReason'] ?? json['PendingExitReason'])?.toString() ?? '',
      hourlyUpdates: updates,
    );
  }

  Map<String, dynamic> toJson() {
    return {
      'tradeId': id,
      'analysisId': analysisId,
      'status': status,
      'isGlobalProposal': isGlobalProposal,
      'userId': userId,
      'symbol': symbol,
      'isin': isin,
      'companyName': companyName,
      'sector': sector,
      'signalType': signalType,
      'entryPrice': entryPrice,
      'actualEntryPrice': actualEntryPrice,
      'currentPrice': currentPrice,
      'stopLoss': stopLoss,
      'takeProfit': takeProfit,
      'positionSize': positionSize,
      'leverageUsed': leverageUsed,
      'pnlAbsolute': pnlAbsolute,
      'pnlPercent': pnlPercent,
      'reasoning': reasoning,
      'technicalRationale': technicalRationale,
      'fundamentalRationale': fundamentalRationale,
      'riskWarning': riskWarning,
      'winRate': winRate,
      'timeframe': timeframe,
      'instrumentType': instrumentType,
      'assetType': assetType,
      'hasCfd': hasCfd,
      'derivativeProductCategories': derivativeProductCategories,
      'derivativeIsin': derivativeIsin,
      'createdAt': createdAt?.toIso8601String(),
      'riskTolerance': riskTolerance,
      'vixValue': vixValue,
      'vixRegime': vixRegime,
      'takeProfitTargets': takeProfitTargets,
      'maxLeverage': maxLeverage,
      'entryZoneMin': entryZoneMin,
      'entryZoneMax': entryZoneMax,
      'entryFee': entryFee,
      'exitFee': exitFee,
      'quantity': quantity,
      'closeReason': closeReason,
      'userExitTimestamp': userExitTimestamp?.toIso8601String(),
      'hasPendingExitAlert': hasPendingExitAlert,
      'pendingExitReason': pendingExitReason,
    };
  }

  @override
  List<Object?> get props => [
        id,
        analysisId,
        status,
        isGlobalProposal,
        userId,
        symbol,
        isin,
        signalType,
        entryPrice,
        currentPrice,
        pnlAbsolute,
        pnlPercent,
        hasPendingExitAlert,
        hourlyUpdates,
      ];
}