package logic

import (
	"context"
	"strings"

	"spark-server/internal/pkg/errs"
	"spark-server/internal/pkg/i18n"
	"spark-server/internal/pkg/reqctx"
	"spark-server/internal/pkg/validate"
)

type RemarkInput struct {
	Remark string `json:"remark" validate:"omitempty,max=64" label:"field.remark" errmsg:"max:validate.friend.remark_invalid"`
}

func (s *Service) SetRemark(ctx context.Context, userID, friendID int64, in RemarkInput) error {
	if !s.ready() || userID <= 0 {
		return errs.ErrUnauthorized
	}
	if err := validate.StructLang(reqctx.Lang(ctx), in); err != nil {
		return err
	}
	if err := s.requireFriend(ctx, userID, friendID); err != nil {
		return err
	}
	return s.repo.SetRemark(ctx, userID, friendID, strings.TrimSpace(in.Remark))
}

func (s *Service) requireFriend(ctx context.Context, userID, friendID int64) error {
	if friendID <= 0 {
		return errs.ErrInvalidArgument
	}
	ok, err := s.AreFriends(ctx, userID, friendID)
	if err != nil {
		return err
	}
	if !ok {
		return errs.ErrNotFound.WithMsg(i18n.T(reqctx.Lang(ctx), i18n.KeyFriendNotFriend, nil))
	}
	return nil
}