bulletboards/ImageBoardServerApp/Data/TheManager.cs

using ImageBoardServerApp.Data.Repository;

namespace ImageBoardServerApp.Data;

public class TheManager
{

    private static long getDiff(PostData post)
    {
        return (DateTimeOffset.Now.ToUnixTimeMilliseconds() - post.CreatedAt);
    }

    private static long getValue(long num)
    {
        return num < 0 ? num * -1 : num;
    }
    
    public static long getBumpValue(PostData post)
    {
        return getValue( 10 * 60000 - getDiff(post)) + getDiff(post) / post.Comments.Count;
    }

    public static async Task<List<PostData>> getPostList(string boardTag)
    {
        List<PostData> threads = await PostsRepository.getPostsByBoardAsync(boardTag);
        return threads.OrderBy(getBumpValue).ToList();
    }

    public static async Task bumpThreads(BoardData board)
    {
        List<PostData> sortedThreads = await getPostList(board.Tag);
        if (sortedThreads.Count > board.maxThreads + 1)
        {
            for (int i = board.maxThreads + 1; i >= sortedThreads.Count; ++i)
            {
                await deleteThread(sortedThreads[i]);
            }
        }
    }
    
    public static async Task deleteThread(PostData post)
    {
        foreach(var c in post.Comments)
        {
            if (c.Image != null)
            {
                deleteImage(c.Image);
            }
        }
        
        deleteImage(post.Image);

        await PostsRepository.deletePostAsync(post.PostID);
    }

    public static async Task deleteComment(CommentData comment)
    {
        if (comment.Image != null)
        {
            deleteImage(comment.Image);
        }

        await CommentsRepository.deleteCommentAsync(comment.CommentID);
    }

    public static void deleteImage(ImageData imageData)
    {
        string path = $"./wwwroot{imageData.ImageLocation}";

        try
        {
            File.Delete(path);
        }
        catch (FileNotFoundException)
        {
            Console.WriteLine("The file was not found.");
        }
        catch (Exception e)
        {
            Console.WriteLine("An error occurred: " + e.Message);
        }
    }
}