package services

import (
	"errors"
	apiModels "gerald/internal/interfaces/rest/models"
	"gerald/internal/models"
	"gerald/repo/pg"
)

type FeedbackService struct {
	db *pg.DB
}

func NewFeedbackService(db *pg.DB) *FeedbackService {
	return &FeedbackService{
		db: db,
	}
}

func (f *FeedbackService) Create(sessionID string, feedback *apiModels.Feedback) error {
	return f.db.Feedback.Create(
		models.NewFeedback(
			feedback.UserID,
			sessionID,
			feedback.Text,
			feedback.ProjectID,
			models.FeedbackType(feedback.Type),
		))
}

func (f *FeedbackService) GetBySessionID(sessionID string) ([]*models.Feedback, error) {
	return f.db.Feedback.GetBySessionID(sessionID)
}

func (f *FeedbackService) GetByProjectID(projectID string) ([]*models.Feedback, error) {
	return f.db.Feedback.GetByProjectID(projectID)
}

func (f *FeedbackService) Upvote(sessionID, feedbackUUID string) error {
	feedback, err := f.db.Feedback.GetByUUID(feedbackUUID)
	if err != nil {
		return err
	}

	// check if project type is feature
	if feedback.Type != models.FeedbackTypeFeature {
		return errors.New("only feature tickets can be upvoted")
	}

	// check if user has already upvoted
	for _, upvote := range feedback.Upvote {
		if upvote.SessionUUID == sessionID {
			return errors.New("user has already upvoted")
		}
	}

	return f.db.Feedback.CreateUpvote(models.NewUpvote(sessionID, feedbackUUID))
}