//
// Program.cs
//
// Author:
//       Natalia Portillo <claunia@claunia.com>
//
// Copyright (c) 2016-2019 Natalia Portillo
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

using System;
using System.IO;
using System.Linq;
using System.Text;

namespace Claunia.RsrcFork.CLI;

internal class MainClass
{
    public static void Main(string[] args)
    {
        Console.WriteLine("Claunia.RsrcFork.CLI");
        Console.WriteLine("© 2016 Natalia Portillo");
        Console.WriteLine();

        if(args.Length != 2 &&
           args.Length != 4)
        {
            Usage();

            return;
        }

        switch(args.Length)
        {
            case 2 when args[0] != "-l":
                Usage();

                return;
            case 2 when !File.Exists(args[1]):
                Console.WriteLine("Specified file does not exist.");

                return;
            case 2:
            {
                var rsrcStream = new FileStream(args[1], FileMode.Open, FileAccess.Read);

                var rsrc = new ResourceFork(rsrcStream);

                foreach(uint type in rsrc.GetTypes())
                {
                    byte[] typeBytes = BitConverter.GetBytes(type);
                    typeBytes = typeBytes.Reverse().ToArray();
                    string typeName = Types.GetName(type);

                    if(typeName != null)
                        Console.WriteLine("\"{0}\" (0x{1:X8}) - {2}", Encoding.ASCII.GetString(typeBytes), type,
                                          typeName);
                    else
                        Console.WriteLine("\"{0}\" (0x{1:X8})", Encoding.ASCII.GetString(typeBytes), type);

                    Resource rez = rsrc.GetResource(type);
                    Console.WriteLine("{0,6}{1,8}\t{2}", "ID", "Length", "Name");
                    Console.WriteLine("{0,6}{1,8}--{2}", "------", "--------", "----------------");

                    foreach(short id in rez.GetIds())
                        if(rez.GetName(id) != null)
                            Console.WriteLine("{0,6}{1,8}\t\"{2}\"", id, rez.GetLength(id), rez.GetName(id));
                        else
                            Console.WriteLine("{0,6}{1,8}", id, rez.GetLength(id));

                    Console.WriteLine();
                }

                return;
            }
            case 4 when args[0] != "-x":
                Usage();

                return;
            case 4 when args[1] != "-o":
                Usage();

                return;
            case 4 when Directory.Exists(args[2]):
                Console.WriteLine("Output directory exists, not proceeding");

                return;
            case 4 when !File.Exists(args[3]):
                Console.WriteLine("Specified file does not exist.");

                return;
            case 4:
            {
                var        rsrcStream = new FileStream(args[3], FileMode.Open, FileAccess.Read);
                FileStream outStream;

                var rsrc = new ResourceFork(rsrcStream);

                foreach(uint type in rsrc.GetTypes())
                {
                    byte[] typeBytes = BitConverter.GetBytes(type);
                    typeBytes = typeBytes.Reverse().ToArray();

                    Directory.CreateDirectory(Path.Combine(args[2], Encoding.ASCII.GetString(typeBytes)));

                    Resource rez = rsrc.GetResource(type);

                    foreach(short id in rez.GetIds())
                    {
                        outStream = new FileStream(Path.Combine(args[2], Encoding.ASCII.GetString(typeBytes), $"{id}"),
                                                   FileMode.Create, FileAccess.ReadWrite);

                        byte[] rez_b = rez.GetResource(id);
                        outStream.Write(rez_b, 0, rez_b.Length);
                        outStream.Close();
                    }
                }

                break;
            }
        }
    }

    public static void Usage()
    {
        Console.WriteLine("Usage:");
        Console.WriteLine("\tClaunia.RsrcFork.CLI.exe -l resourcefork.bin - Lists resources in resource fork file");
        Console.WriteLine("\t\tor");
        Console.WriteLine("\tClaunia.RsrcFork.CLI.EXE -x -o output.dir resourcefork.bin - Extracts all resources to output.dir");
    }
}