using System;
using System.IO;
using System.Reflection;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using PluginSystem;

namespace MEAExplorerWV
{
    public static class Plugins
    {
        public static List<IPlugin> PluginList = new List<IPlugin>();
        public static IPluginHost Host;
        public static void Init()
        {
            try
            {
                Host = new PluginHost();
                if (!Directory.Exists("plugins"))
                    return;
                string[] files = Directory.GetFiles("plugins\\", "*.dll", SearchOption.AllDirectories);
                ICollection<Assembly> assemblies = new List<Assembly>();
                foreach (string file in files)
                {
                    try
                    {
                        AssemblyName an = AssemblyName.GetAssemblyName(file);
                        Assembly assembly = Assembly.Load(an);
                        assemblies.Add(assembly);
                    }
                    catch { }
                }
                Type pluginType = typeof(IPlugin);
                ICollection<Type> pluginTypes = new List<Type>();
                foreach (Assembly assembly in assemblies)
                    if (assembly != null)
                    {
                        Type[] types = assembly.GetTypes();
                        foreach (Type type in types)
                            if (type.IsInterface || type.IsAbstract)
                                continue;
                            else
                                if (type.GetInterface(pluginType.FullName) != null)
                                    pluginTypes.Add(type);
                    }
                foreach (Type type in pluginTypes)
                {
                    IPlugin plugin = (IPlugin)Activator.CreateInstance(type);
                    plugin.Host = Host;
                    PluginList.Add(plugin);
                }
            }
            catch (Exception ex)
            {
                Log.WriteLine("Error loading plugins: " + ex.Message);
                Log.WriteLine(ex.StackTrace);
            }
        }

        public class PluginHost : IPluginHost
        {
            public List<string> getTOCFiles()
            {
                List<string> result = new List<string>();
                foreach (FS.TOCEntry toc in FS.TOClist)
                    result.Add(toc.filePath);
                return result;
            }
            public List<string> getTOCFileLabels()
            {
                List<string> result = new List<string>();
                foreach (FS.TOCEntry toc in FS.TOClist)
                    result.Add(toc.displayName);
                return result;
            }
            public List<string> getBundleNames(string toc)
            {
                return FS.getAllBundleNames(toc);
            }
            public List<DataInfo> getAllEBX(string toc, string bundle)
            {
                return FS.getAllBundleEntries(toc, bundle, "ebx");
            }
            public List<DataInfo> getAllRES(string toc, string bundle)
            {
                return FS.getAllBundleEntries(toc, bundle, "res");
            }
            public List<ChunkInfo> getAllTocCHUNKs(string toc)
            {
                return FS.getAllTocChunks(toc);
            }
            public List<ChunkInfo> getAllBundleCHUNKs(string toc, string bundle)
            {
                return FS.getAllBundleChunks(toc, bundle);
            }

            public byte[] getDataBySha1(byte[] sha1)
            {
                return FS.FindDataBySha1(sha1);
            }

            public int setDataBySha1(byte[] data, byte[] sha1, string toc)
            {
                return FS.SetDataBySha1(data, sha1, toc);
            }

            public void setAutoPatching(bool value)
            {
                FS.autoPatchData = value;
            }

            public void AddModJob(string pname, string desc, byte[] payload)
            {
                Mods.Jobs.Add(new Mods.ModJob(pname, desc, payload));
            }

            public Dictionary<string, string> getEBXGuids()
            {
                return FS.ebxGUIDs;
            }
        }
    }
}