class EnergyData {
  final double pvPower;        // Watts - production solaire
  final double homePower;      // Watts - consommation maison
  final double batteryPower;   // Watts - puissance batterie (+ charge, - décharge)
  final double gridPower;      // Watts - réseau (+ injection, - soutif)
  final double batterySOC;     // % - état de charge batterie
  final double temperature;    // °C
  final String weatherIcon;

  // Journée
  final double dayProductionWh;
  final double daySelfConsumptionWh;
  final double dayGridInjectionWh;
  final double selfConsumptionRate; // %
  final double autonomyRate;        // %
  final double dayGains;            // €

  // Borne de recharge
  final ChargingMode chargingMode;
  final double chargingPower;       // kW
  final double solarSourcePercent;  // %
  final bool gridLimitOk;

  const EnergyData({
    this.pvPower = 0,
    this.homePower = 0,
    this.batteryPower = 0,
    this.gridPower = 0,
    this.batterySOC = 0,
    this.temperature = 0,
    this.weatherIcon = 'cloud_snow',
    this.dayProductionWh = 0,
    this.daySelfConsumptionWh = 0,
    this.dayGridInjectionWh = 0,
    this.selfConsumptionRate = 0,
    this.autonomyRate = 0,
    this.dayGains = 0,
    this.chargingMode = ChargingMode.pv,
    this.chargingPower = 3.6,
    this.solarSourcePercent = 82,
    this.gridLimitOk = true,
  });

  EnergyData copyWith({
    double? pvPower,
    double? homePower,
    double? batteryPower,
    double? gridPower,
    double? batterySOC,
    double? temperature,
    String? weatherIcon,
    double? dayProductionWh,
    double? daySelfConsumptionWh,
    double? dayGridInjectionWh,
    double? selfConsumptionRate,
    double? autonomyRate,
    double? dayGains,
    ChargingMode? chargingMode,
    double? chargingPower,
    double? solarSourcePercent,
    bool? gridLimitOk,
  }) {
    return EnergyData(
      pvPower: pvPower ?? this.pvPower,
      homePower: homePower ?? this.homePower,
      batteryPower: batteryPower ?? this.batteryPower,
      gridPower: gridPower ?? this.gridPower,
      batterySOC: batterySOC ?? this.batterySOC,
      temperature: temperature ?? this.temperature,
      weatherIcon: weatherIcon ?? this.weatherIcon,
      dayProductionWh: dayProductionWh ?? this.dayProductionWh,
      daySelfConsumptionWh: daySelfConsumptionWh ?? this.daySelfConsumptionWh,
      dayGridInjectionWh: dayGridInjectionWh ?? this.dayGridInjectionWh,
      selfConsumptionRate: selfConsumptionRate ?? this.selfConsumptionRate,
      autonomyRate: autonomyRate ?? this.autonomyRate,
      dayGains: dayGains ?? this.dayGains,
      chargingMode: chargingMode ?? this.chargingMode,
      chargingPower: chargingPower ?? this.chargingPower,
      solarSourcePercent: solarSourcePercent ?? this.solarSourcePercent,
      gridLimitOk: gridLimitOk ?? this.gridLimitOk,
    );
  }
}

enum ChargingMode { pv, minPv, boost }

class HistoryPoint {
  final DateTime time;
  final double pvWh;
  final double homeWh;
  final double gridWh;
  final double batteryWh;

  const HistoryPoint({
    required this.time,
    this.pvWh = 0,
    this.homeWh = 0,
    this.gridWh = 0,
    this.batteryWh = 0,
  });
}

// ── Entrée Energy.GetPowerBalanceLogs ─────────────────────────────────────────
class PowerBalanceEntry {
  final DateTime timestamp;
  final double productionW;    // puissance PV (valeur absolue, W)
  final double consumptionW;   // consommation maison (W)
  final double acquisitionW;   // import réseau (W, positif)
  final double storageW;       // batterie : +charge / -décharge (W)
  final double totalProductionWh;    // cumulé depuis l'origine (Wh)
  final double totalConsumptionWh;
  final double totalReturnWh;        // injection réseau cumulée (Wh)
  final double totalAcquisitionWh;

  const PowerBalanceEntry({
    required this.timestamp,
    this.productionW = 0,
    this.consumptionW = 0,
    this.acquisitionW = 0,
    this.storageW = 0,
    this.totalProductionWh = 0,
    this.totalConsumptionWh = 0,
    this.totalReturnWh = 0,
    this.totalAcquisitionWh = 0,
  });

  /// Autoconsommation instantanée (W) = production locale non injectée au réseau.
  double get autoconsommationW =>
      (consumptionW + (storageW > 0 ? storageW : 0))
          .clamp(0.0, productionW)
          .toDouble();
}