package posts

import (
	"context"

	"lmika.dev/lmika/weiro/models"
	"lmika.dev/lmika/weiro/providers/db"
)

type PostWithCategories struct {
	*models.Post
	Categories []*models.Category
}

func (s *Service) ListPosts(ctx context.Context, showDeleted bool) ([]*PostWithCategories, error) {
	site, ok := models.GetSite(ctx)
	if !ok {
		return nil, models.SiteRequiredError
	}

	posts, err := s.db.SelectPostsOfSite(ctx, site.ID, showDeleted, db.PagingParams{
		Offset: 0,
		Limit:  25,
	})
	if err != nil {
		return nil, err
	}

	result := make([]*PostWithCategories, len(posts))
	for i, post := range posts {
		cats, err := s.db.SelectCategoriesOfPost(ctx, post.ID)
		if err != nil {
			return nil, err
		}
		result[i] = &PostWithCategories{Post: post, Categories: cats}
	}
	return result, nil
}

func (s *Service) GetPost(ctx context.Context, pid int64) (*models.Post, error) {
	post, _, err := s.fetchPostAndSite(ctx, pid)
	if err != nil {
		return nil, err
	}

	return post, nil
}

func (s *Service) GetPostCategories(ctx context.Context, postID int64) ([]*models.Category, error) {
	return s.db.SelectCategoriesOfPost(ctx, postID)
}