package logic

import (
	"context"
	"strings"

	modentity "spark-server/internal/module/moderation/entity"
)

// GateText scans user-authored text outside chat (moments, square, nickname, announcement).
// A nil service or blank text is unchanged. Replace returns the masked body.
// Reject, mute, and disable record the hit and return ErrContentBlocked.
func (s *Service) GateText(ctx context.Context, userID int64, text string) (string, error) {
	if s == nil || strings.TrimSpace(text) == "" {
		return text, nil
	}
	res, err := s.Scan(ctx, text)
	if err != nil || res == nil || len(res.Hits) == 0 {
		return text, err
	}
	if err := s.Apply(ctx, userID, 0, &modentity.ApplyInput{Hits: res.Hits}); err != nil {
		return text, err
	}
	if err := s.Enforce(ctx, userID, res); err != nil {
		return text, err
	}
	if res.Action == modentity.ActionReplace && res.ReplacedBody != "" {
		return res.ReplacedBody, nil
	}
	return text, nil
}