package object

import (
	"fmt"
)

var (
	TRUE  = Boolean{Value: true}
	FALSE = Boolean{Value: false}
)

type Boolean struct {
	Value bool
}

func NewBoolean(value bool) Boolean {
	if value {
		return TRUE
	}
	return FALSE
}

func (b Boolean) Bool() bool {
	return b.Value
}

func (b Boolean) Type() Type {
	return BooleanType
}

func (b Boolean) Inspect() string {
	return fmt.Sprintf("%t", b.Value)
}

func (b Boolean) Clone() Object {
	return Boolean{Value: b.Value}
}

func (b Boolean) String() string {
	return b.Inspect()
}

func (b Boolean) Int() int {
	if b.Value {
		return 1
	}
	return 0
}

func (b Boolean) LogicalAnd(other Object) (Object, error) {
	if !AssertTypes(other, BooleanType, IntegerType) {
		return nil, NewBinaryOpError(b, other, "&&")
	}
	return Boolean{b.Value && other.Bool()}, nil
}

func (b Boolean) LogicalOr(other Object) (Object, error) {
	if !AssertTypes(other, BooleanType, IntegerType) {
		return nil, NewBinaryOpError(b, other, "||")
	}
	return Boolean{b.Value || other.Bool()}, nil
}

func (b Boolean) LogicalNot() Object {
	return Boolean{!b.Value}
}

func (b Boolean) Compare(other Object) int {
	if obj, ok := other.(Boolean); ok {
		return b.Int() - obj.Int()
	}
	return 1
}