package openplatform

import (
	"encoding/json"
	"time"
)

const (
	StatusNormal      = "NORMAL"
	StatusNoData      = "NO_DATA"
	StatusDataAnomaly = "DATA_ANOMALY"
)

type QueryRequest struct {
	PlateNumbers     []string         `json:"plateNumbers"`
	Date             string           `json:"date"`
	ProtocolPriority ProtocolPriority `json:"protocolPriority,omitempty"`
}

type MileageRangeRequest struct {
	StartDate        string           `json:"startDate"`
	EndDate          string           `json:"endDate"`
	PlateNumbers     []string         `json:"plateNumbers"`
	ProtocolPriority ProtocolPriority `json:"protocolPriority,omitempty"`
	Cursor           string           `json:"cursor"`
	PageSize         int              `json:"pageSize"`
}

type ProtocolPriority struct {
	Values  []string
	Present bool
}

func (p *ProtocolPriority) UnmarshalJSON(data []byte) error {
	p.Present = true
	if string(data) == "null" {
		p.Values = []string{}
		return nil
	}
	var values []string
	if err := json.Unmarshal(data, &values); err != nil {
		return err
	}
	p.Values = values
	return nil
}

type HydrogenResult struct {
	PlateNumber           string   `json:"plateNumber"`
	Date                  string   `json:"date"`
	HydrogenConsumptionKg *float64 `json:"hydrogenConsumptionKg"`
	CalculationPhase      string   `json:"calculationPhase,omitempty"`
	AlgorithmVersion      string   `json:"algorithmVersion,omitempty"`
	Status                string   `json:"status"`
}

type MileageResult struct {
	VIN            string   `json:"vin"`
	PlateNumber    string   `json:"plateNumber"`
	Date           string   `json:"date"`
	DailyMileageKm *float64 `json:"dailyMileageKm"`
	TotalMileageKm *float64 `json:"totalMileageKm"`
	DataTime       *string  `json:"dataTime"`
	UpdatedAt      *string  `json:"updatedAt"`
	SourceProtocol *string  `json:"sourceProtocol"`
	DataQuality    *string  `json:"dataQuality,omitempty"`
	Status         string   `json:"status"`
}

type MileageRangeResult struct {
	VIN            string   `json:"vin"`
	PlateNumber    string   `json:"plateNumber"`
	Date           string   `json:"date"`
	DailyMileageKm *float64 `json:"dailyMileageKm"`
	TotalMileageKm *float64 `json:"totalMileageKm"`
	DataTime       *string  `json:"dataTime"`
	UpdatedAt      *string  `json:"updatedAt"`
	SourceProtocol *string  `json:"sourceProtocol"`
	DataQuality    *string  `json:"dataQuality,omitempty"`
	Status         string   `json:"status"`
}

type TotalMileageQueryRequest struct {
	VIN      string `json:"vin"`
	Time     string `json:"time"`
	Protocol string `json:"protocol,omitempty"`
}

type TotalMileageResult struct {
	VIN                   string   `json:"vin"`
	QueryTime             string   `json:"queryTime"`
	TotalMileageKm        *float64 `json:"totalMileageKm"`
	Protocol              string   `json:"protocol,omitempty"`
	ProtocolInput         string   `json:"protocolInput,omitempty"`
	MileageMeaning        string   `json:"mileageMeaning,omitempty"`
	RecordTime            string   `json:"recordTime,omitempty"`
	TimeDifferenceSeconds *int64   `json:"timeDifferenceSeconds,omitempty"`
	SelectionPolicy       string   `json:"selectionPolicy"`
	Status                string   `json:"status"`
}

type TotalMileagePoint struct {
	VIN            string
	Protocol       string
	ObservedAt     time.Time
	TotalMileageKm float64
}

// StationaryVehicleQueryRequest verifies whether an authorized vehicle stayed
// at a refuelling-site coordinate during a supplied time window. Coordinates
// may be supplied in WGS84 or GCJ02 (Amap) longitude/latitude.
type StationaryVehicleQueryRequest struct {
	StartTime        string   `json:"startTime"`
	EndTime          string   `json:"endTime"`
	Longitude        float64  `json:"longitude"`
	Latitude         float64  `json:"latitude"`
	CoordinateSystem string   `json:"coordinateSystem,omitempty"`
	RadiusMeters     *float64 `json:"radiusMeters,omitempty"`
	PlateNumbers     []string `json:"plateNumbers,omitempty"`
}

type StationaryVehicleResult struct {
	VIN                 string   `json:"vin"`
	PlateNumber         string   `json:"plateNumber"`
	StayStartTime       string   `json:"stayStartTime"`
	StayEndTime         string   `json:"stayEndTime"`
	StayDurationSeconds int64    `json:"stayDurationSeconds"`
	StayDurationMinutes float64  `json:"stayDurationMinutes"`
	MatchScore          float64  `json:"matchScore"`
	AverageDistanceM    float64  `json:"averageDistanceMeters"`
	MaxDistanceM        float64  `json:"maxDistanceMeters"`
	AverageSpeedKmh     float64  `json:"averageSpeedKmh"`
	MaxSpeedKmh         float64  `json:"maxSpeedKmh"`
	MatchedSamples      int      `json:"matchedSamples"`
	SourceProtocols     []string `json:"sourceProtocols"`
}

type StationaryLocationPoint struct {
	VIN        string
	Protocol   string
	ObservedAt time.Time
	Longitude  float64
	Latitude   float64
	SpeedKmh   float64
}

type RealtimeVehicleRequest struct {
	PlateNumbers []string `json:"plateNumbers,omitempty"`
}

type RealtimeVehiclePoint struct {
	VIN            string
	Protocol       string
	Longitude      float64
	Latitude       float64
	SpeedKmh       float64
	SOCPercent     *float64
	TotalMileageKm float64
	ObservedAt     time.Time
	Online         bool
	ActiveToday    bool
}

type RealtimeVehicleResult struct {
	VIN         string `json:"vin"`
	PlateNumber string `json:"plateNumber"`
	// Protocol is the single, canonical source protocol for this realtime record.
	// It is normalized to GB32960, MQTT, or JT808.
	Protocol              string   `json:"protocol,omitempty"`
	Longitude             *float64 `json:"longitude"`
	Latitude              *float64 `json:"latitude"`
	SpeedKmh              *float64 `json:"speedKmh"`
	SOCPercent            *float64 `json:"socPercent,omitempty"`
	TotalMileageKm        *float64 `json:"totalMileageKm"`
	RecordTime            string   `json:"recordTime,omitempty"`
	TimeDifferenceSeconds *int64   `json:"timeDifferenceSeconds,omitempty"`
	Online                bool     `json:"online"`
	ActiveToday           bool     `json:"activeToday"`
	MotionStatus          string   `json:"motionStatus"`
	LocationAvailable     bool     `json:"locationAvailable"`
	Status                string   `json:"status"`
}

type HydrogenStationRequest struct {
	Province      string `json:"province,omitempty"`
	City          string `json:"city,omitempty"`
	CooperateOnly *bool  `json:"cooperateOnly,omitempty"`
}

type HydrogenStation struct {
	ID                string  `json:"id"`
	Name              string  `json:"name"`
	ShortName         string  `json:"shortName,omitempty"`
	Address           string  `json:"address,omitempty"`
	Longitude         float64 `json:"longitude"`
	Latitude          float64 `json:"latitude"`
	Province          string  `json:"province,omitempty"`
	City              string  `json:"city,omitempty"`
	District          string  `json:"district,omitempty"`
	Cooperative       bool    `json:"cooperative"`
	ContactPerson     string  `json:"contactPerson,omitempty"`
	ContactPhone      string  `json:"contactPhone,omitempty"`
	UnitPrice         float64 `json:"unitPrice,omitempty"`
	MonthlyHydrogenKg float64 `json:"monthlyHydrogenKg"`
	TotalHydrogenKg   float64 `json:"totalHydrogenKg"`
}

type ExternalResponse struct {
	Code    string `json:"code"`
	Message string `json:"message"`
	Data    any    `json:"data,omitempty"`
	TraceID string `json:"traceId"`
}

type MileageRangeResponse struct {
	Code       string               `json:"code"`
	Message    string               `json:"message"`
	Data       []MileageRangeResult `json:"data"`
	SnapshotID string               `json:"snapshotId"`
	NextCursor *string              `json:"nextCursor"`
	TraceID    string               `json:"traceId"`
}

type App struct {
	ID           uint64     `json:"id"`
	Name         string     `json:"name"`
	AppKeyPrefix string     `json:"appKeyPrefix"`
	Status       string     `json:"status"`
	ValidFrom    time.Time  `json:"validFrom"`
	ValidTo      *time.Time `json:"validTo,omitempty"`
	CreatedBy    string     `json:"createdBy"`
	CreatedAt    time.Time  `json:"createdAt"`
	UpdatedAt    time.Time  `json:"updatedAt"`
}

type AppCreated struct {
	App
	AppKey string `json:"appKey"`
}

type AppInput struct {
	Name      string `json:"name"`
	Status    string `json:"status"`
	ValidFrom string `json:"validFrom"`
	ValidTo   string `json:"validTo"`
}

type VehicleGrantInput struct {
	VIN       string `json:"vin"`
	ValidFrom string `json:"validFrom"`
	ValidTo   string `json:"validTo"`
}

type VehicleGrantRequest struct {
	Vehicles []VehicleGrantInput `json:"vehicles"`
}

type VehicleGrant struct {
	VIN       string     `json:"vin"`
	Plate     string     `json:"plate"`
	ValidFrom time.Time  `json:"validFrom"`
	ValidTo   *time.Time `json:"validTo,omitempty"`
	GrantedBy string     `json:"grantedBy"`
	UpdatedAt time.Time  `json:"updatedAt"`
}

type VehicleCatalogItem struct {
	VIN    string `json:"vin"`
	Plate  string `json:"plate"`
	OEM    string `json:"oem"`
	Status string `json:"status"`
	Source string `json:"source"`
}

type AuthorizedVehicle struct {
	VIN   string
	Plate string
}

type AppCredential struct {
	ID   uint64
	Name string
}

type DailyHydrogen struct {
	VIN              string
	Date             string
	ConsumptionKg    float64
	SampleCount      int
	QualityStatus    string
	CalculationPhase string
	AlgorithmVersion string
}

type DailyMileage struct {
	VIN            string
	Date           string
	Protocol       string
	MileageKm      float64
	TotalMileageKm float64
	DataTime       string
	UpdatedAt      string
}

type MileageSnapshot struct {
	ID           string
	AppID        uint64
	RequestHash  []byte
	StartDate    string
	EndDate      string
	VehicleCount int
	ExpiresAt    time.Time
	Vehicles     []AuthorizedVehicle
}

type HydrogenObservation struct {
	VIN                string
	Source             string
	EventID            string
	ObservedAt         time.Time
	MassKg             float64
	TankCapacityLiter  float64
	PressureMPa        float64
	TemperatureC       float64
	NoiseKg            float64
	RefuelThresholdKg  float64
	FuelCellActive     bool
	FuelCellStateKnown bool
	FuelCellVoltageV   float64
	FuelCellCurrentA   float64
	FuelCellPowerKnown bool
	SOCPercent         float64
	SOCKnown           bool
	MileageKm          float64
	MileageKnown       bool
	VehicleState       int
	VehicleStateKnown  bool
	ChargeState        int
	ChargeStateKnown   bool
	RunningMode        int
	RunningModeKnown   bool
	BoundaryEligible   bool
	BoundaryReason     string
	RefuelBoundary     bool
	RefuelAmountKg     float64
	PressureInvalid    bool
}

type HydrogenCalculationParameters struct {
	BatteryCapacityKWh        float64 `json:"batteryCapacityKWh"`
	HydrogenEnergyKWhKg       float64 `json:"hydrogenEnergyKWhPerKg"`
	PowerOnDelaySeconds       int     `json:"powerOnDelaySeconds"`
	PowerOffLeadSeconds       int     `json:"powerOffLeadSeconds"`
	RefuelRiseMPa             float64 `json:"refuelRiseMpa"`
	RefuelSustainSeconds      int     `json:"refuelSustainSeconds"`
	PureElectricDropMPA       float64 `json:"pureElectricDropMpa"`
	PureElectricWindowSeconds int     `json:"pureElectricWindowSeconds"`
	InitialChargeCycleKnown   bool    `json:"initialChargeCycleKnown,omitempty"`
	InitialMixedLocked        bool    `json:"initialMixedLocked,omitempty"`
	AlgorithmVersion          string  `json:"algorithmVersion"`
}

type HydrogenIntervalEvidence struct {
	Index                    int      `json:"index"`
	Type                     string   `json:"type"`
	StartTime                string   `json:"startTime"`
	EndTime                  string   `json:"endTime"`
	StartEventID             string   `json:"startEventId"`
	EndEventID               string   `json:"endEventId"`
	Source                   string   `json:"source"`
	StartPressureMPa         float64  `json:"startPressureMpa"`
	EndPressureMPa           float64  `json:"endPressureMpa"`
	StartTemperatureC        float64  `json:"startTemperatureC"`
	EndTemperatureC          float64  `json:"endTemperatureC"`
	StartMassKg              float64  `json:"startMassKg"`
	EndMassKg                float64  `json:"endMassKg"`
	RawHydrogenConsumptionKg float64  `json:"rawHydrogenConsumptionKg"`
	StartSOCPercent          *float64 `json:"startSocPercent,omitempty"`
	EndSOCPercent            *float64 `json:"endSocPercent,omitempty"`
	BatterySOCDeltaPct       *float64 `json:"batterySocDeltaPct,omitempty"`
	BatteryEnergyChangeKWh   *float64 `json:"batteryEnergyChangeKWh,omitempty"`
	ElectricEquivalentKg     *float64 `json:"electricEquivalentHydrogenKg,omitempty"`
	CorrectedConsumptionKg   *float64 `json:"correctedHydrogenConsumptionKg,omitempty"`
	BatteryDischargeKWh      *float64 `json:"batteryDischargeKWh,omitempty"`
	BatteryEquivalentKg      *float64 `json:"batteryEquivalentKg,omitempty"`
	SOCBalancedConsumptionKg *float64 `json:"socBalancedConsumptionKg,omitempty"`
	StartMileageKm           *float64 `json:"startMileageKm,omitempty"`
	EndMileageKm             *float64 `json:"endMileageKm,omitempty"`
	MileageKm                *float64 `json:"mileageKm,omitempty"`
	ConsumptionKgPer100Km    *float64 `json:"consumptionKgPer100Km,omitempty"`
	SampleCount              int      `json:"sampleCount"`
	QualityStatus            string   `json:"qualityStatus"`
	QualityReason            string   `json:"qualityReason"`
}

type HydrogenRateObservation struct {
	VIN        string
	Source     string
	ObservedAt time.Time
	Rate       float64
	MileageKm  float64
}

type HydrogenRateDailyStat struct {
	VIN           string
	Source        string
	Date          string
	ConsumptionKg float64
	SampleCount   int
	QualityStatus string
	QualityReason string
}

type HydrogenDailyStat struct {
	VIN                             string
	Source                          string
	Date                            string
	ConsumptionKg                   float64
	FirstMassKg                     float64
	LastMassKg                      float64
	CycleMinimumMassKg              float64
	SampleCount                     int
	RefuelCount                     int
	RefuelAmountKg                  float64
	AbnormalDropCount               int
	SuspectedLeakCount              int
	SuspectedLeakMaxPressureDropMPa float64
	EligibleIntervalCount           int
	QualifiedSegmentCount           int
	ChargeCount                     int
	ChargeEnergyKWh                 float64
	InvalidSegmentCount             int
	BatterySOCDeltaPct              *float64
	BatteryEnergyChangeKWh          *float64
	ElectricEquivalentKg            *float64
	CorrectedConsumptionKg          *float64
	BatteryDischargeKWh             *float64
	BatteryEquivalentKg             *float64
	SOCBalancedConsumptionKg        *float64
	MixedMileageKm                  float64
	PureElectricMileageKm           float64
	ConsumptionKgPer100Km           *float64
	SOCBalancedKgPer100Km           *float64
	CalculationParameters           HydrogenCalculationParameters
	Intervals                       []HydrogenIntervalEvidence
	HydrogenIntervals               []HydrogenIntervalEvidence
	FirstObservation                HydrogenObservation
	LastObservation                 HydrogenObservation
	QualityStatus                   string
	QualityReason                   string
}

type PortalUser struct {
	ID          uint64     `json:"id"`
	Username    string     `json:"username"`
	DisplayName string     `json:"displayName"`
	Status      string     `json:"status"`
	ValidFrom   time.Time  `json:"validFrom"`
	ValidTo     *time.Time `json:"validTo,omitempty"`
	LastLoginAt *time.Time `json:"lastLoginAt,omitempty"`
	CreatedBy   string     `json:"createdBy"`
	CreatedAt   time.Time  `json:"createdAt"`
	UpdatedAt   time.Time  `json:"updatedAt"`
}

type PortalUserInput struct {
	Username    string `json:"username"`
	DisplayName string `json:"displayName"`
	Password    string `json:"password"`
	Status      string `json:"status"`
	ValidFrom   string `json:"validFrom"`
	ValidTo     string `json:"validTo"`
}

type PortalUserAppInput struct {
	AppID uint64 `json:"appId"`
	Role  string `json:"role"`
}

type PortalUserAppRequest struct {
	Apps []PortalUserAppInput `json:"apps"`
}

type PortalUserApp struct {
	AppID        uint64     `json:"appId"`
	AppName      string     `json:"appName"`
	AppKeyPrefix string     `json:"appKeyPrefix"`
	AppStatus    string     `json:"appStatus"`
	Role         string     `json:"role"`
	ValidFrom    time.Time  `json:"validFrom"`
	ValidTo      *time.Time `json:"validTo,omitempty"`
}

type PortalSession struct {
	UserID      uint64    `json:"userId"`
	Username    string    `json:"username"`
	DisplayName string    `json:"displayName"`
	UserType    string    `json:"userType"`
	ExpiresAt   time.Time `json:"expiresAt"`
}

type PortalLoginResponse struct {
	AccessToken string        `json:"accessToken"`
	ExpiresAt   time.Time     `json:"expiresAt"`
	Session     PortalSession `json:"session"`
}

type PortalLoginRequest struct {
	Username string `json:"username"`
	Password string `json:"password"`
}

type PortalAuditItem struct {
	TraceID      string    `json:"traceId"`
	Endpoint     string    `json:"endpoint"`
	Result       string    `json:"result"`
	VehicleCount int       `json:"vehicleCount"`
	CreatedAt    time.Time `json:"createdAt"`
}

type DataProduct struct {
	Code        string `json:"code"`
	Name        string `json:"name"`
	Description string `json:"description"`
	Version     string `json:"version"`
	Status      string `json:"status"`
	Method      string `json:"method"`
	Path        string `json:"path"`
	Unit        string `json:"unit"`
}