// --------------------------------------------------------------------------------------------------------------------
// <copyright file="Program.cs" company="James South">
//   Copyright (c) James South.
//   Licensed under the Apache License, Version 2.0.
// </copyright>
// <summary>
//   The program.
// </summary>
// --------------------------------------------------------------------------------------------------------------------

namespace ImageProcessorConsole
{
    using System;
    using System.Collections.Generic;
    using System.Drawing;
    using System.IO;
    using System.Linq;
    using ImageProcessor;
    using ImageProcessor.Plugins.Cair;

    /// <summary>
    /// The program.
    /// </summary>
    public class Program
    {
        /// <summary>
        /// The main routine.
        /// </summary>
        /// <param name="args">
        /// The args.
        /// </param>
        public static void Main(string[] args)
        {
            string path = new Uri(System.Reflection.Assembly.GetExecutingAssembly().CodeBase).LocalPath;

            // ReSharper disable once AssignNullToNotNullAttribute
            string resolvedPath = Path.GetFullPath(Path.Combine(Path.GetDirectoryName(path), @"..\..\images\input"));
            DirectoryInfo di = new DirectoryInfo(resolvedPath);
            if (!di.Exists)
            {
                di.Create();
            }

            IEnumerable<FileInfo> files = GetFilesByExtensions(di, ".jpg");
            //IEnumerable<FileInfo> files = GetFilesByExtensions(di, ".gif", ".webp", ".bmp", ".jpg", ".png");

            foreach (FileInfo fileInfo in files)
            {
                byte[] photoBytes = File.ReadAllBytes(fileInfo.FullName);

                // ImageProcessor
                using (MemoryStream inStream = new MemoryStream(photoBytes))
                {
                    using (ImageFactory imageFactory = new ImageFactory(true))
                    {
                        Size size = new Size(800, 0);

                        // Load, resize, set the format and quality and save an image.
                        imageFactory.Load(inStream)
                            //.BackgroundColor(Color.White)
                            //.Resize(new Size((int)(size.Width * 1.1), 0))
                            .ContentAwareResize(size)
                            //.Constrain(size)
                            .Save(Path.GetFullPath(Path.Combine(Path.GetDirectoryName(path), @"..\..\images\output", fileInfo.Name)));
                    }
                }
            }
        }

        public static IEnumerable<FileInfo> GetFilesByExtensions(DirectoryInfo dir, params string[] extensions)
        {
            if (extensions == null)
            {
                throw new ArgumentNullException("extensions");
            }

            IEnumerable<FileInfo> files = dir.EnumerateFiles();
            return files.Where(f => extensions.Contains(f.Extension, StringComparer.OrdinalIgnoreCase));
        }
    }
}