package builtins

import (
	"fmt"
	"monkey/internal/context"
	"monkey/internal/object"
	"monkey/internal/typing"
)

// IdOf ...
func IdOf(ctx context.Context, args ...object.Object) object.Object {
	if err := typing.Check(
		"id", args,
		typing.ExactArgs(1),
	); err != nil {
		return newError(err.Error())
	}

	arg := args[0]

	if n, ok := arg.(object.Null); ok {
		return object.String{Value: fmt.Sprintf("%p", &n)}
	} else if b, ok := arg.(object.Boolean); ok {
		return object.String{Value: fmt.Sprintf("%p", &b)}
	} else if i, ok := arg.(object.Integer); ok {
		return object.String{Value: fmt.Sprintf("%p", &i)}
	} else if s, ok := arg.(object.String); ok {
		return object.String{Value: fmt.Sprintf("%p", &s)}
	} else if a, ok := arg.(*object.Array); ok {
		return object.String{Value: fmt.Sprintf("%p", a)}
	} else if h, ok := arg.(*object.Hash); ok {
		return object.String{Value: fmt.Sprintf("%p", h)}
	} else if f, ok := arg.(*object.Function); ok {
		return object.String{Value: fmt.Sprintf("%p", &f)}
	} else if c, ok := arg.(*object.Closure); ok {
		return object.String{Value: fmt.Sprintf("%p", &c)}
	} else if b, ok := arg.(object.Builtin); ok {
		return object.String{Value: fmt.Sprintf("%p", &b)}
	}
	return nil
}