pmomusic/xx

------- /pmoupnp/devices/services/statevariables/statevartype_arithm.go ------
package statevariables

// Add performs addition operation on two interfaces if both are of numeric
// type, otherwise it returns an error. If the types are not numeric, it checks
// and converts them into float64 before performing the addition. The function
// then casts the result back to its original type using Cast method from
// StateVarType t and returns this value or any encountered error.
//
// Parameters:
//
//	a (interface{}): First operand for addition operation. Can be of any type.
//	b (interface{}): Second operand for addition operation. Can be of any type.
//
// Returns:
//
//	interface{}: Result of the addition, casted back to its original type using StateVarType t if no error encountered.
//	error: Encountered error in case any conversion or casting fails. This includes non-numeric types for this operation.
func (t StateVarType) Add(a, b interface{}) (interface{}, error) {
	af, bf, err := valuesToNumericOperands(t, a, b)
	if err != nil {
		return nil, err
	}

	return t.Cast(af + bf)
}

// Sub subtracts 'b' from 'a'. It converts both values to numeric types
// and then performs a subtraction operation, casting the result back to its
// original type. If either conversion fails or an unsupported type is used,
// it returns an error.
func (t StateVarType) Sub(a, b interface{}) (interface{}, error) {
	af, bf, err := valuesToNumericOperands(t, a, b)
	if err != nil {
		return nil, err
	}

	return t.Cast(af - bf)
}

// Mul takes in two interface types 'a' and 'b', multiplies them together
// and returns the result along with any error encountered during this
// process. If either of the inputs is not compatible with numeric values, an
// error will be returned. The multiplication operation is performed between two
// numbers represented as 'float64' types (since Go does not support generic
// types on its own). The resulting value will be cast to the type represented
// by the receiver of this method 't'. If a casting error occurs, it will also
// be returned along with nil for the result.
func (t StateVarType) Mul(a, b interface{}) (interface{}, error) {
	af, bf, err := valuesToNumericOperands(t, a, b)
	if err != nil {
		return nil, err
	}

	return t.Cast(af * bf)
}

// Div performs division between the provided arguments 'a' and 'b'. The function casts both operands to their numeric equivalents using valuesToNumericOperands() before performing the division.
//
// Parameters:
//   - a: first operand of type interface{}, can be of any type, will be converted if necessary
//   - b: second operand of type interface{}, can be of any type, will be converted if necessary
//
// Returns:
//   - result: the division result in numeric form after casting it with function t.Cast()
//   - err: error that might occur during the conversion or division operation
func (t StateVarType) Div(a, b interface{}) (interface{}, error) {
	af, bf, err := valuesToNumericOperands(t, a, b)
	if err != nil {
		return nil, err
	}

	return t.Cast(af / bf)
}
-----------------
------- /pmoupnp/devices/services/statevariables/statevartype_cast.go ------
package statevariables

import (
	"fmt"
	"net/url"
	"strings"
	"time"

	"github.com/google/uuid"
)

// Cast converts a value to the Go type corresponding to the UPnP type.
// Supports conversion from various primitive types and strings.
// Returns an error for unsupported conversions or invalid values.
//
// Examples:
//   - StateType_UI2.Cast(42)        // uint16(42), nil
//   - StateType_Boolean.Cast("true") // true, nil
//   - StateType_UI1.Cast(300)        // nil, error (overflow)
func (t StateVarType) Cast(val interface{}) (interface{}, error) {
	switch t {
	case StateType_UI1:
		v, err := toUint(val, 8)
		if err != nil {
			return nil, fmt.Errorf("cannot cast %v (%T) to UI1", val, val)
		}
		return uint8(v), nil

	case StateType_UI2:
		v, err := toUint(val, 16)
		if err != nil {
			return nil, fmt.Errorf("cannot cast %v (%T) to UI2", val, val)
		}
		return uint16(v), nil

	case StateType_UI4:
		v, err := toUint(val, 32)
		if err != nil {
			return nil, fmt.Errorf("cannot cast %v (%T) to UI4", val, val)
		}
		return uint32(v), nil

	case StateType_I1:
		v, err := toInt(val, 8)
		if err != nil {
			return nil, fmt.Errorf("cannot cast %v (%T) to I1", val, val)
		}
		return int8(v), nil

	case StateType_I2:
		v, err := toInt(val, 16)
		if err != nil {
			return nil, fmt.Errorf("cannot cast %v (%T) to I2", val, val)
		}
		return int16(v), nil

	case StateType_I4, StateType_Int:
		v, err := toInt(val, 32)
		if err != nil {
			return nil, fmt.Errorf("cannot cast %v (%T) to I4", val, val)
		}
		return int32(v), nil

	case StateType_R4:
		v, err := toFloat(val, 32)
		if err != nil {
			return nil, fmt.Errorf("cannot cast %v (%T) to R4", val, val)
		}
		return float32(v), nil

	case StateType_R8, StateType_Number, StateType_Fixed14_4:
		v, err := toFloat(val, 64)
		if err != nil {
			return nil, fmt.Errorf("cannot cast %v (%T) to R8", val, val)
		}
		return v, nil

	case StateType_Boolean:
		b, err := toBool(val)
		if err != nil {
			return nil, fmt.Errorf("cannot cast %v (%T) to Boolean", val, val)
		}
		return b, nil

	case StateType_Char:
		switch s := val.(type) {
		case string:
			if len(s) != 1 {
				return nil, fmt.Errorf("invalid Char: string too long %q", s)
			}
			return rune(s[0]), nil
		case rune:
			return s, nil
		default:
			return nil, fmt.Errorf("cannot cast %v (%T) to Char", val, val)
		}

	case StateType_String:
		return fmt.Sprint(val), nil

	case StateType_UUID:
		switch val := val.(type) {
		case uuid.UUID:
			return val, nil
		case string:
			u, err := uuid.Parse(strings.TrimSpace(val))
			if err != nil {
				return nil, fmt.Errorf("invalid UUID %v: %v", val, err)
			}
			return u, nil
		default:
			return nil, fmt.Errorf("cannot cast %v (%T) to UUID", val, val)
		}

	case StateType_URI:
		switch val := val.(type) {
		case *url.URL:
			return val, nil
		case string:
			u, err := url.Parse(strings.TrimSpace(val))
			if err != nil {
				return nil, fmt.Errorf("invalid URI %v: %v", val, err)
			}
			return u, nil
		default:
			return nil, fmt.Errorf("cannot cast %v (%T) to URI", val, val)
		}

	case StateType_BinBase64, StateType_BinHex:
		switch v := val.(type) {
		case []byte:
			return v, nil
		case string:
			return decodeBinary(t, v)
		default:
			return nil, fmt.Errorf("cannot cast %v (%T) to binary", val, val)
		}

	case StateType_Date, StateType_DateTime, StateType_DateTimeTZ,
		StateType_Time, StateType_TimeTZ:
		switch v := val.(type) {
		case time.Time:
			return v, nil
		case string:
			return parseUPnPTime(t, v)
		default:
			return nil, fmt.Errorf("cannot cast %v (%T) to time", val, val)
		}

	default:
		return nil, fmt.Errorf("unsupported type: %v", t)
	}
}
-----------------
------- /pmoupnp/devices/services/statevariables/statevartype_cmp.go ------
package statevariables

import (
	"bytes"
	"fmt"
	"log"
	"strings"
)

// Cmp compares two values of a given type 'StateVarType'. The comparison is
// made based on the specific type of 'a' and 'b'. It returns an integer
// indicating whether 'a' is less than, equal to, or greater than 'b'. If 'a' is
// less than 'b', it returns -1. If they are equal, it returns 0. If 'a' is
// greater than 'b', it returns 1. It also returns an error if any of the values
// can't be cast to the required type or if comparison isn't supported for the
// given type 'StateVarType'.
//
//   - t: StateVarType representing the specific type to use for comparison.
//   - a, b: The values to compare. They should be of type interface{} as they could be
//     any valid Go type.
//
// Returns: An integer indicating the result of the comparison (-1 if 'a' is
// less than 'b', 0 if they are equal, and 1 if 'a' is greater than 'b'). It
// also returns an error if any values can't be cast or if comparison isn't
// supported for the given type.
//
// Example:
//
//	result, err := t.Cmp(int32(5), int32(7)) // Returns -1 and nil error as 5 is less than 7.
func (t StateVarType) Cmp(a, b interface{}) (int, error) {
	a, err1 := t.Cast(a)
	b, err2 := t.Cast(b)

	if err1 != nil || err2 != nil {
		log.Fatalf("Failed to cast for comparison: %v vs %v (errors: %v, %v)", a, b, err1, err2)
	}

	switch {
	case t.IsInteger():
		ai, err := toInt(a, t.BitSize())
		if err != nil {
			return 0, fmt.Errorf("invalid int value for a: %w", err)
		}
		bi, err := toInt(b, t.BitSize())
		if err != nil {
			return 0, fmt.Errorf("invalid int value for b: %w", err)
		}
		return cmpInt(ai, bi), nil

	case t.IsUnsignedInt():
		ai, err := toUint(a, t.BitSize())
		if err != nil {
			return 0, fmt.Errorf("invalid uint value for a: %w", err)
		}
		bi, err := toUint(b, t.BitSize())
		if err != nil {
			return 0, fmt.Errorf("invalid uint value for b: %w", err)
		}
		return cmpUint(ai, bi), nil

	case t.IsFloat():
		af, err := toFloat(a, t.BitSize())
		if err != nil {
			return 0, fmt.Errorf("invalid float value for a: %w", err)
		}
		bf, err := toFloat(b, t.BitSize())
		if err != nil {
			return 0, fmt.Errorf("invalid float value for b: %w", err)
		}
		return cmpFloat64(af, bf), nil

	case t == StateType_Boolean:
		ab, err := toBool(a)
		if err != nil {
			return 0, fmt.Errorf("invalid bool value for a: %w", err)
		}
		bb, err := toBool(b)
		if err != nil {
			return 0, fmt.Errorf("invalid bool value for b: %w", err)
		}
		return cmpBool(ab, bb), nil

	case t == StateType_String || t == StateType_Char:
		as, err := toString(a)
		if err != nil {
			return 0, fmt.Errorf("invalid string value for a")
		}
		bs, err := toString(b)
		if err != nil {
			return 0, fmt.Errorf("invalid string value for b")
		}
		return strings.Compare(as, bs), nil

	case t.IsTime():
		at, err := toTime(a)
		if err != nil {
			return 0, fmt.Errorf("invalid time value for a")
		}
		bt, err := toTime(b)
		if err != nil {
			return 0, fmt.Errorf("invalid time value for b")
		}
		return cmpTime(at, bt), nil

	default:
		return 0, fmt.Errorf("comparison not supported for type %v", t)
	}
}

func (t StateVarType) Equal(a, b interface{}) (bool, error) {
	switch {
	case t.IsInteger():
		ai, err1 := toInt(a, 64)
		bi, err2 := toInt(b, 64)
		if err1 != nil || err2 != nil {
			return false, fmt.Errorf("invalid integer value for type %s", t.String())
		}
		return ai == bi, nil

	case t.IsFloat():
		af, err := toFloat(a, 64)
		if err != nil {
			return false, fmt.Errorf("invalid float value for type %s: %v", t.String(), err)
		}
		bf, err := toFloat(b, 64)
		if err != nil {
			return false, fmt.Errorf("invalid float value for type %s: %v", t.String(), err)
		}
		return af == bf, nil

	case t.IsString():
		as, ok1 := a.(string)
		bs, ok2 := b.(string)
		if !ok1 || !ok2 {
			return false, fmt.Errorf("invalid string value for type %s", t.String())
		}
		return as == bs, nil

	case t.IsBool():
		ab, err1 := toBool(a)
		bb, err2 := toBool(b)
		if err1 != nil || err2 != nil {
			return false, fmt.Errorf("invalid boolean value for type %s", t.String())
		}
		return ab == bb, nil

	case t.IsTime():
		at, err1 := toTime(a)
		bt, err2 := toTime(b)
		if err1 != nil || err2 != nil {
			return false, fmt.Errorf("invalid time.Time value for type %s", t.String())
		}
		return at.Equal(bt), nil

	case t.IsUUID():
		au, err1 := toUUID(a)
		bu, err2 := toUUID(b)
		if err1 != nil || err2 != nil {
			return false, fmt.Errorf("invalid uuid.UUID value for type %s", t.String())
		}
		return au == bu, nil

	case t.IsURI():
		au, err1 := toURI(a)
		bu, err2 := toURI(b)
		if err1 != nil || err2 != nil {
			return false, fmt.Errorf("invalid *url.URL value for type %s", t.String())
		}
		return au.String() == bu.String(), nil

	case t.IsBinary():
		ab, err1 := toBinary(a)
		bb, err2 := toBinary(b)
		if err1 != nil || err2 != nil {
			return false, fmt.Errorf("invalid []byte value for type %s", t.String())
		}
		return bytes.Equal(ab, bb), nil

	default:
		return false, fmt.Errorf("equality not supported for type %s", t.String())
	}
}

// InRange checks if a value falls within an inclusive range [min, max].
// Uses the type's comparison logic. Returns true if val is between min and max (inclusive).
//
// Example:
//
//	range := ValueRange{min: uint16(10), max: uint16(100)}
//	StateType_UI2.InRange(uint16(50), range) // true
func (t StateVarType) InRange(val interface{}, interval *ValueRange) (bool, error) {
	if interval == nil {
		return true, nil
	}
	cmp1, err1 := t.Cmp(val, interval.min)
	cmp2, err2 := t.Cmp(val, interval.max)
	if err1 != nil || err2 != nil {
		err := err1
		if err == nil {
			err = err2
		}
		return false, err
	}
	return cmp1 >= 0 && cmp2 <= 0, nil
}
-----------------
------- /pmoupnp/devices/services/statevariables/statevartype_typechecking.go ------
package statevariables

// IsNumeric checks whether a given StateVarType represents a numeric type or
// not. Numeric types are defined as those that can be used to store number-like
// values. The following types are considered numeric: UI1, UI2, UI4, I1, I2,
// I4, Int, R4, R8, Number and Fixed14_4.
//
// t: StateVarType to check if it's a numeric type or not.
//
// Returns true if the given StateVarType represents a numeric type; false
// otherwise.
func (t StateVarType) IsNumeric() bool {
	switch t {
	case StateType_UI1, StateType_UI2, StateType_UI4,
		StateType_I1, StateType_I2, StateType_I4,
		StateType_Int,
		StateType_R4, StateType_R8,
		StateType_Number,
		StateType_Fixed14_4:
		return true
	default:
		return false
	}
}

// IsInteger checks if the state variable type is integer or not.
//
// It returns a boolean value indicating whether the provided StateVarType (t)
// is an integer type or not. The function takes one parameter, t of type
// StateVarType, which represents the state variable type to be checked.
//
// Parameters: - t (StateVarType): The StateVarType to check for comparability.
//
// Returns: bool: If the state variable type is any of the defined integer types
// (StateType_UI1, StateType_UI2, StateType_UI4, StateType_I1, StateType_I2,
// StateType_I4, StateType_Int), it returns true. Otherwise, it returns false.
func (t StateVarType) IsInteger() bool {
	switch t {
	case StateType_UI1, StateType_UI2, StateType_UI4,
		StateType_I1, StateType_I2, StateType_I4,
		StateType_Int:
		return true
	default:
		return false
	}
}

// IsSignedInt checks if the state variable type is a signed integer type.
// The function returns true for StateType_I1, StateType_I2, StateType_I4, and
// StateType_Int, otherwise it will return false. This method is part of the
// StateVarType enumeration in statevaluetype package. It takes no parameters
// but operates on the receiver 't' of type StateVarType.
//
// The returned value is a boolean.
func (t StateVarType) IsSignedInt() bool {
	switch t {
	case StateType_I1, StateType_I2, StateType_I4, StateType_Int:
		return true
	default:
		return false
	}
}

// IsUnsignedInt checks if the state variable type is an unsigned integer. It
// returns a boolean indicating whether or not the current StateVarType
// represents an unsigned integer type, namely: StateType_UI1, StateType_UI2,
// and StateType_UI4.
func (t StateVarType) IsUnsignedInt() bool {
	switch t {
	case StateType_UI1, StateType_UI2, StateType_UI4:
		return true
	default:
		return false
	}
}

// IsFloat returns a boolean indicating whether the given state variable type
// represents a float number. If the state variable type is one of R4, R8, Number or
// Fixed14_4 it returns true; otherwise, it returns false.
func (t StateVarType) IsFloat() bool {
	switch t {
	case StateType_R4, StateType_R8, StateType_Number, StateType_Fixed14_4:
		return true
	default:
		return false
	}
}

// IsBool checks if a StateVarType is of type Boolean. It returns true if the
// StateVarType equals to StateType_Boolean, false otherwise.
func (t StateVarType) IsBool() bool {
	return t == StateType_Boolean
}

// IsString reports whether or not the state variable type represents a string
// value.
//
// This method returns true if the StateVarType is either StateType_String or
// StateType_Char, otherwise it returns false.
func (t StateVarType) IsString() bool {
	switch t {
	case StateType_String, StateType_Char:
		return true
	default:
		return false
	}
}

// IsTime checks whether a given StateVarType is of time type or not. It accepts
// a StateVarType parameter 't' and returns a boolean value based on the check.
//
// The possible values for 't' are: StateType_Date, StateType_DateTime,
// StateType_DateTimeTZ, StateType_Time, StateType_TimeTZ. If 't' is any of
// these types, the function returns true; otherwise, it returns false.
func (t StateVarType) IsTime() bool {
	switch t {
	case StateType_Date, StateType_DateTime, StateType_DateTimeTZ,
		StateType_Time, StateType_TimeTZ:
		return true
	default:
		return false
	}
}

// IsUUID reports whether the receiver represents a UUID (Universally Unique
// Identifier). The StateVarType should be of type StateType_UUID to return
// true. Otherwise, it returns false.
func (t StateVarType) IsUUID() bool {
	return t == StateType_UUID
}

// IsURI checks if the given state variable type is a URI.
//
// This function returns true if and only if the receiver (StateVarType t)
// equals StateType_URI, which represents URIs in UPnP protocol. Otherwise, it
// returns false.
func (t StateVarType) IsURI() bool {
	return t == StateType_URI
}

// IsBinary checks if the given StateVarType is binary type or not. It returns
// true for types StateType_BinBase64 and StateType_BinHex, otherwise it returns
// false.
func (t StateVarType) IsBinary() bool {
	switch t {
	case StateType_BinBase64, StateType_BinHex:
		return true
	default:
		return false
	}
}

// IsComparable function checks if a StateVarType is comparable or not.
//
// It returns false for binary types (StateType_BinBase64 and StateType_BinHex)
// as they are non-comparable. For all other types, it returns true indicating
// that these types can be compared.
//
// Parameters: - t (StateVarType): The StateVarType to check for comparability.
//
// Returns: bool: A boolean value indicating whether the given StateVarType is
// comparable or not. True means it's comparable, False means it isn't.
func (t StateVarType) IsComparable() bool {
	// Tous les types sauf les binaires sont comparables
	switch t {
	case StateType_BinBase64, StateType_BinHex:
		return false
	default:
		return true
	}
}
-----------------
------- /pmoupnp/devices/services/statevariables/statevartype.go ------
// package stateVariables provides comprehensive handling of UPnP state variable types.
// It includes type identification, value casting, comparison, and range validation
// for all standard UPnP state variable types.
package statevariables

import (
	"strings"
	"time"
)

// StateVarType represents UPnP state variable types with corresponding Go type mappings.
type StateVarType int

// Constants defining all supported UPnP state variable types
const (
	StateType_Unknown    StateVarType = iota
	StateType_UI1                     // Unsigned 8-bit integer (Go: uint8)
	StateType_UI2                     // Unsigned 16-bit integer (Go: uint16)
	StateType_UI4                     // Unsigned 32-bit integer (Go: uint32)
	StateType_I1                      // Signed 8-bit integer (Go: int8)
	StateType_I2                      // Signed 16-bit integer (Go: int16)
	StateType_I4                      // Signed 32-bit integer (Go: int32)
	StateType_Int                     // Synonymous with i4 (Go: int32)
	StateType_R4                      // 32-bit floating point (Go: float32)
	StateType_R8                      // 64-bit floating point (Go: float64)
	StateType_Number                  // Synonymous with r8 (Go: float64)
	StateType_Fixed14_4               // Fixed-point decimal (Go: float64)
	StateType_Char                    // Single Unicode character (Go: rune)
	StateType_String                  // Character string (Go: string)
	StateType_Boolean                 // Boolean value (Go: bool)
	StateType_BinBase64               // Base64-encoded binary (Go: []byte)
	StateType_BinHex                  // Hex-encoded binary (Go: []byte)
	StateType_Date                    // Date (YYYY-MM-DD) (Go: time.Time)
	StateType_DateTime                // DateTime without timezone (Go: time.Time)
	StateType_DateTimeTZ              // DateTime with timezone (Go: time.Time)
	StateType_Time                    // Time without timezone (Go: time.Time)
	StateType_TimeTZ                  // Time with timezone (Go: time.Time)
	StateType_UUID                    // Universally unique identifier (Go: uuid.UUID)
	StateType_URI                     // Uniform Resource Identifier (Go: *url.URL)
)

// typeNames maps UPnP XML type names to StateVarType constants
var typeNames = map[string]StateVarType{
	"ui1":         StateType_UI1,
	"ui2":         StateType_UI2,
	"ui4":         StateType_UI4,
	"i1":          StateType_I1,
	"i2":          StateType_I2,
	"i4":          StateType_I4,
	"int":         StateType_Int,
	"r4":          StateType_R4,
	"r8":          StateType_R8,
	"number":      StateType_Number,
	"fixed.14.4":  StateType_Fixed14_4,
	"char":        StateType_Char,
	"string":      StateType_String,
	"boolean":     StateType_Boolean,
	"bin.base64":  StateType_BinBase64,
	"bin.hex":     StateType_BinHex,
	"date":        StateType_Date,
	"dateTime":    StateType_DateTime,
	"dateTime.tz": StateType_DateTimeTZ,
	"time":        StateType_Time,
	"time.tz":     StateType_TimeTZ,
	"uuid":        StateType_UUID,
	"uri":         StateType_URI,
}

// typeStrings provides string representations for StateVarType constants
var typeStrings = [...]string{
	"unknown",
	"ui1",
	"ui2",
	"ui4",
	"i1",
	"i2",
	"i4",
	"int",
	"r4",
	"r8",
	"number",
	"fixed.14.4",
	"char",
	"string",
	"boolean",
	"bin.base64",
	"bin.hex",
	"date",
	"dateTime",
	"dateTime.tz",
	"time",
	"time.tz",
	"uuid",
	"uri",
}

// StateVarTypeFactory takes a string and attempts to build from it a valid
// StateVarType. The input string is cleaned before processing -
// leading/trailing spaces are trimmed, the case is lowered for comparison with
// known types, and if no match is found 'StateType_Unknown' is returned.
func StateVarTypeFactory(s string) StateVarType {
	s = strings.ToLower(strings.TrimSpace(s))
	if val, ok := typeNames[s]; ok {
		return val
	}
	return StateType_Unknown
}

// String returns a string representation of the StateVarType. It defaults to
// "unknown" if the type is not recognized.
func (t StateVarType) String() string {
	if int(t) >= 0 && int(t) < len(typeStrings) {
		return typeStrings[t]
	}
	return "unknown"
}

// BitSize returns the bit size of the StateVarType value, or -1 if not numeric.
// The possible return values are 8 for StateTypes I1, UI1, and 64 for others.
func (t StateVarType) BitSize() int {
	// If t isn't numeric, return -1
	if !t.IsNumeric() {
		return -1
	}

	// Check the value of t and return the appropriate bit size
	switch t {
	case StateType_I1, StateType_UI1:
		return 8
	case StateType_I2, StateType_UI2:
		return 16
	case StateType_I4, StateType_UI4, StateType_Int, StateType_R4:
		return 32
	case StateType_R8, StateType_Number, StateType_Fixed14_4:
		return 64
	default:
		return 64
	}
}

// NewStateValue creates and returns a new StateValue struct instance with the given name
// and the receiver's state variable type. The created StateValue is initialized with an
// empty map for event conditions. If name is an empty string, it will cause panic in later
// usage. Name is typically used to identify or represent a specific value or condition
// associated with the variable type 't'.
func (t StateVarType) NewStateValue(name string) *StateVariable {
	return &StateVariable{
		name:            name,
		valueType:       t,
		eventConditions: make(map[string]StateConditionFunc),
	}
}

func (t StateVarType) DefaultValue() interface{} {
	switch t {
	case StateType_Unknown:

	case StateType_UI1, StateType_UI2, StateType_UI4:
		return uint64(0)

	case StateType_I1, StateType_I2, StateType_I4, StateType_Int:
		return int64(0)

	case StateType_R4, StateType_R8, StateType_Number, StateType_Fixed14_4:
		return float64(0)

	case StateType_Char, StateType_String:
		return ""
	case StateType_Boolean:
		return false

	case StateType_BinBase64:
		return ""
	case StateType_BinHex:
		return ""
	case StateType_Date:
		return time.Unix(int64(1718985600), 0).UTC()
	case StateType_DateTime:
		return time.Unix(int64(1718985600), 0).UTC()
	case StateType_DateTimeTZ:
		return time.Unix(int64(1718985600), 0).UTC()
	case StateType_Time:
		return time.Unix(int64(1718985600), 0).UTC()
	case StateType_TimeTZ:
		return time.Unix(int64(1718985600), 0).UTC()
	case StateType_UUID:
		return ""
	case StateType_URI:
		return ""

	}

	return nil
}
-----------------