package common_utils

import "context"

type Task func(ctx context.Context) error

// Number types
type (
	Signed interface {
		~int | ~int8 | ~int16 | ~int32 | ~int64
	}
	Unsigned interface {
		~uint | ~uint8 | ~uint32 | ~uint64
	}
	Float interface{ ~float32 | ~float64 }
	Int   interface{ Signed | Unsigned }
	Num   interface{ Float | Int }
)

type IRange[T Num] interface {
	Begin() T
	End() T
}

type Range[T Num] struct {
	IRange[T]
	begin T
	end   T
}

func NewRange[T Num](begin T, end T) *Range[T] { return &Range[T]{begin: begin, end: end} }
func (r Range[T]) Begin() T                    { return r.begin }
func (r Range[T]) End() T                      { return r.end }

type CovertFunc[Tin any, Tout any] func(in Tin) (out Tout, err error)

type IStrConvertable interface {
	String() string
}