package forms

import (
	"errors"
	"fmt"
	"net/http"
	"net/url"
)

type Validator struct {
	Failed bool
}

func (v *Validator) MinLength(s string, min int) error {
	var err error = nil
	if len(s) < min {
		v.Failed = true
		err = fmt.Errorf("Minimum length: %v", min)
	}

	return err
}

func (v *Validator) Fail(s string) error {
	v.Failed = true

	return errors.New(s)
}

func ParseFormData(r *http.Request, parse func(url.Values, *Validator)) bool {
	v := Validator{}
	err := r.ParseForm()
	if err != nil {
		return true
	}

	parse(r.Form, &v)

	return v.Failed
}