package handler

import (
	"errors"

	rErrors "codeberg.org/danjones000/responsable-errors"
	"github.com/gin-gonic/gin"
)

type config struct {
	transformers []Transformer
}

type Transformer func(error) rErrors.ResponsableError

type Option func(config) config

func WithTransformer(tr Transformer) Option {
	return func(c config) config {
		c.transformers = append(c.transformers, tr)
		return c
	}
}

func WithDefaultTransformer() Option {
	return WithTransformer(ginTransformer)
}

func ginTransformer(er error) rErrors.ResponsableError {
	var err *gin.Error
	if !errors.As(er, &err) {
		return nil
	}

	switch err.Type {
	case gin.ErrorTypePrivate:
		return rErrors.NewInternalError("%w", err)
	default:
		return rErrors.NewBadRequest("%w", err)
	}
}