package sync

import (
	"fmt"
	"path"

	"srs.epita.fr/fic-server/libfic"
)

func SyncExerciceHints(i Importer, exercice fic.Exercice) []string {
	var errs []string

	if _, err := exercice.WipeHints(); err != nil {
		errs = append(errs, err.Error())
	} else if hints, err := i.listDir(path.Join(exercice.Path, "hints")); err != nil {
		errs = append(errs, err.Error())
	} else {
		for _, hfile := range hints {
			if hint_cnt, err := getFileContent(i, path.Join(exercice.Path, "hints", hfile)); err != nil {
				errs = append(errs, fmt.Sprintf("%q: unable to read hint file %q: %s", path.Base(exercice.Path), hfile, err))
				continue
			} else if _, err := exercice.AddHint(hfile, hint_cnt, 1); err != nil {
				errs = append(errs, fmt.Sprintf("%q: unable to add hint %q: %s", path.Base(exercice.Path), hfile, err))
				continue
			}
		}
	}
	return errs
}