using Microsoft.Extensions.DependencyModel;
using System.Reflection;
using System.Runtime.Loader;

namespace DS.Module.Core.Reflection;

public static class AssemblyHelper
{
    private static Assembly[] GetAllAssemblies()
    {
        string[] filters =
         {
                "mscorlib",
                "netstandard",
                "dotnet",
                "api-ms-win-core",
                "runtime.",
                "System",
                "Microsoft",
                "Window",
            };

        DependencyContext context = DependencyContext.Default;
        List<string> names = new List<string>();
        foreach (CompilationLibrary library in context.CompileLibraries)
        {
            string name = library.Name;
            if (filters.Any(name.StartsWith))
            {
                continue;
            }

            if (!names.Contains(name))
            {
                names.Add(name);
            }
        }
        return LoadFiles(names);
    }

    private static Assembly[] LoadFiles(IEnumerable<string> files)
    {
        List<Assembly> assemblies = new List<Assembly>();
        foreach (string file in files)
        {
            AssemblyName name = new AssemblyName(file);
            try
            {
                assemblies.Add(Assembly.Load(name));
            }
            catch (FileNotFoundException)
            { }
        }
        return assemblies.ToArray();
    }

    public static Assembly[] FindAllItems()
    {
        return GetAllAssemblies().ToArray();
    }

    /// <summary>
    /// 根据程序集名字得到程序集
    /// </summary>
    /// <param name="assemblyNames"></param>
    /// <returns></returns>

    public static IEnumerable<Assembly> GetAssembliesByName(params string[] assemblyNames)
    {
        var basePath = Microsoft.DotNet.PlatformAbstractions.ApplicationEnvironment.ApplicationBasePath; //获取项目路径
        return assemblyNames.Select(o => AssemblyLoadContext.Default.LoadFromAssemblyPath(Path.Combine(basePath, $"{o}.dll")));
    }
}