LANCommander/LANCommander.Client/Services/MediaService.cs

using LANCommander.Client.Data;
using LANCommander.Client.Data.Models;
using LANCommander.Client.Models;
using Microsoft.AspNetCore.Components.Forms;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace LANCommander.Client.Services
{
    public class MediaService : BaseDatabaseService<Media>
    {
        private readonly Settings Settings;

        public MediaService(DatabaseContext context) : base(context) {
            Settings = SettingService.GetSettings();
        }

        public override Task Delete(Media entity)
        {
            DeleteLocalMediaFile(entity);

            return base.Delete(entity);
        }

        public bool FileExists(Media entity)
        {
            var path = GetImagePath(entity);

            return File.Exists(path);
        }

        public async Task<bool> FileExists(Guid id)
        {
            var path = await GetImagePath(id);

            return File.Exists(path);
        }

        public async Task<string> GetImagePath(Guid id)
        {
            var entity = await Get(id);

            return GetImagePath(entity);
        }

        public static string GetStoragePath()
        {
            var settings = SettingService.GetSettings();

            return Path.Combine(AppDomain.CurrentDomain.BaseDirectory, settings.Media.StoragePath);
        }

        public static string GetImagePath(Media entity)
        {
            return Path.Combine(GetStoragePath(), $"{entity.FileId}-{entity.Crc32}");
        }

        public void DeleteLocalMediaFile(Media entity)
        {
            var path = GetImagePath(entity);

            if (File.Exists(path))
                File.Delete(path);
        }
    }
}