private static async Task <List <UserModule> > GetModulesFromDirectoriesAsync(string[] directories)
{
var modTasks = directories.Where(dir => !dir.EndsWith("...ignore")).Select(async dir => {
var files = Directory.GetFiles(dir, "*.dll", SearchOption.AllDirectories);
UserModule mod = null;
try {
foreach (var file in files)
{
var asm = Assembly.LoadFrom(file);
if (mod != null)
{
goto foundMod;
}
var startClasses = asm.GetTypes().Where(t =>
t.IsClass &&
t.BaseType == typeof(ModuleAPI.Module) &&
t.GetCustomAttribute <ApplicationHookAttribute>() != null
).ToList();
if (startClasses.Count <= 0)
{
continue;
}
var startupClass = startClasses[0];
mod = await UserModule.FromTypeAsync(startupClass);
}
foundMod:
return(mod);
}
catch (Exception exc) {
Logger.Log("Module loading error", exc);
return(null);
}
}).ToList();
var foundModules = new List <UserModule>();
foreach (var modTask in modTasks)
{
if (modTask == null)
{
continue;
}
var um = await modTask;
if (um != null)
{
foundModules.Add(um);
}
}
return(foundModules);
}
public static async Task LoadAllAsync()
{
ModuleLoadOrder = ModuleLoadOrder ?? new Dictionary <int, UserModule>();
ModuleLoadOrder?.Clear();
var sysModule = await UserModule.FromTypeAsync(typeof(SystemCommands));
ModuleLoadOrder.Add(ModuleLoadOrder.Count, sysModule);
var directories = Directory.GetDirectories(ModuleDirectory, "*", SearchOption.TopDirectoryOnly);
LoadingStarted?.Invoke(directories.Length);
var foundModules = await GetModulesFromDirectoriesAsync(directories);
foundModules.ForEach(um => {
var index = ModuleLoadOrder.Count + 1;
var canUse = false;
do
{
if (!ModuleLoadOrder.ContainsKey(index))
{
canUse = true;
ModuleLoadOrder.Add(index, um);
ModuleLoaded?.Invoke(um);
}
else
{
index++;
}
} while(canUse == false);
});
LoadingEnded?.Invoke();
}
/// <summary>
/// Load a module anywhere inside a specific directory
/// </summary>
/// <param name="directory">Location of the module</param>
/// <returns></returns>
private static UserModule GetModuleFromDirectory(string directory)
{
var files = Directory.EnumerateFiles(directory, "*.dll", SearchOption.AllDirectories);
UserModule mod = null;
// Load each *.dll file found in the directory
files.ToList().ForEach(async file => {
try {
var asm = Assembly.LoadFrom(file);
// Search for a type in the loaded assembly that:-
// 1. Is a child of the Module class
// 2. Has the ApplicationHook attribute (that can only be applied to one class)
var startClasses = asm.GetTypes().Where(t =>
t.IsClass &&
t.BaseType == typeof(ModuleAPI.Module) &&
t.GetCustomAttribute <ApplicationHookAttribute>() != null
).ToList();
// If any class meeting these conditions is found,
// Store that as the 'Startup Class' i.e. the class
// which will recieve commands through Project Butler
if (startClasses.Count > 0)
{
var startupClass = startClasses[0];
mod = await UserModule.FromTypeAsync(startupClass);
}
} catch (Exception exc) {
Logger.Log("Module loading error", exc);
}
});
return(mod);
}
