package cli

import (
	"fmt"

	"git.maximhutz.com/max/lambda/pkg/engine"
)

type Engine interface {
	engine.Engine[Repr]

	Name() string
	InType() string
}

type convertedEngine[T any] struct {
	engine engine.Engine[T]
	name   string
	inType string
}

func (b convertedEngine[T]) InType() string { return b.inType }

func (b convertedEngine[T]) Name() string { return b.name }

func (b convertedEngine[T]) Get() (Repr, error) {
	s, err := b.engine.Get()
	if err != nil {
		return nil, err
	}

	return NewRepr(b.inType, s), nil
}

func (b convertedEngine[T]) Set(r Repr) error {
	if t, ok := r.Data().(T); ok {
		return b.engine.Set(t)
	}

	return fmt.Errorf("Incorrent format '%s' for engine '%s'.", r.Id(), b.inType)
}

func (b convertedEngine[T]) Step(i int) bool {
	return b.engine.Step(i)
}

func ConvertEngine[T any](e engine.Engine[T], name string, inType string) Engine {
	return convertedEngine[T]{e, name, inType}
}