Implemented the ability to extract an archive image to a cache directory.

API/Controllers/ReaderController.cs

@@ -0,0 +1,46 @@
+using System;
+using System.IO.Compression;
+using System.Linq;
+using System.Threading.Tasks;
+using API.Entities;
+using API.Interfaces;
+using Microsoft.AspNetCore.Mvc;
+
+namespace API.Controllers
+{
+    public class ReaderController : BaseApiController
+    {
+        private readonly ISeriesRepository _seriesRepository;
+        private readonly IDirectoryService _directoryService;
+
+        public ReaderController(ISeriesRepository seriesRepository, IDirectoryService directoryService)
+        {
+            _seriesRepository = seriesRepository;
+            _directoryService = directoryService;
+        }
+
+        [HttpGet("info")]
+        public async Task<ActionResult<int>> GetInformation(int volumeId)
+        {
+            Volume volume = await _seriesRepository.GetVolumeAsync(volumeId);
+            
+            // Assume we always get first Manga File
+            if (volume == null || !volume.Files.Any())
+            {
+                return BadRequest("There are no files in the volume to read.");
+            }
+
+            var filepath = volume.Files.ElementAt(0).FilePath;
+
+            var extractPath = _directoryService.ExtractArchive(filepath, volumeId);
+            if (string.IsNullOrEmpty(extractPath))
+            {
+                return BadRequest("There file is no longer there or has no images. Please rescan.");
+            }
+
+            return Ok(_directoryService.ListFiles(extractPath).Count());
+        }
+        
+        
+    }
+}