/* OperServ core functions
 *
 * (C) 2003-2020 Anope Team
 * Contact us at team@anope.org
 *
 * Please read COPYING and README for further details.
 *
 * Based on the original code of Epona by Lara.
 * Based on the original code of Services by Andy Church.
 */

#include "module.h"

class CommandOSModInfo : public Command
{
 public:
	CommandOSModInfo(Module *creator) : Command(creator, "operserv/modinfo", 1, 1)
	{
		this->SetDesc(_("Info about a loaded module"));
		this->SetSyntax(_("\037modname\037"));
	}

	void Execute(CommandSource &source, const std::vector<Anope::string> &params) anope_override
	{
		const Anope::string &file = params[0];

		Log(LOG_ADMIN, source, this) << "on " << file;

		Module *m = ModuleManager::FindModule(file);
		if (m)
		{
			source.Reply(_("Module: \002%s\002 Version: \002%s\002 Author: \002%s\002 Loaded: \002%s\002"), m->name.c_str(), !m->version.empty() ? m->version.c_str() : "?", !m->author.empty() ? m->author.c_str() : "Unknown", Anope::strftime(m->created, source.GetAccount()).c_str());
			if (Anope::Debug)
				source.Reply(_(" Loaded at: %p"), m->handle);

			std::vector<Anope::string> servicekeys = Service::GetServiceKeys("Command");
			for (unsigned i = 0; i < servicekeys.size(); ++i)
			{
				ServiceReference<Command> c("Command", servicekeys[i]);
				if (!c || c->owner != m)
					continue;

				source.Reply(_("   Providing service: \002%s\002"), c->name.c_str());

				for (botinfo_map::const_iterator it = BotListByNick->begin(), it_end = BotListByNick->end(); it != it_end; ++it)
				{
					const BotInfo *bi = it->second;

					for (CommandInfo::map::const_iterator cit = bi->commands.begin(), cit_end = bi->commands.end(); cit != cit_end; ++cit)
					{
						const Anope::string &c_name = cit->first;
						const CommandInfo &info = cit->second;
						if (info.name != c->name)
							continue;
						source.Reply(_("   Command \002%s\002 on \002%s\002 is linked to \002%s\002"), c_name.c_str(), bi->nick.c_str(), c->name.c_str());
					}
				}
			}
		}
		else
			source.Reply(_("No information about module \002%s\002 is available."), file.c_str());

		return;
	}

	bool OnHelp(CommandSource &source, const Anope::string &subcommand) anope_override
	{
		this->SendSyntax(source);
		source.Reply(" ");
		source.Reply(_("This command lists information about the specified loaded module."));
		return true;
	}
};

class CommandOSModList : public Command
{
 public:
	CommandOSModList(Module *creator) : Command(creator, "operserv/modlist", 0, 1)
	{
		this->SetDesc(_("List loaded modules"));
		this->SetSyntax("[all|third|vendor|extra|database|encryption|pseudoclient|protocol]");
	}

	void Execute(CommandSource &source, const std::vector<Anope::string> &params) anope_override
	{
		const Anope::string &param = !params.empty() ? params[0] : "";

		if (!param.empty())
			Log(LOG_ADMIN, source, this) << "for " << param;
		else
			Log(LOG_ADMIN, source, this);

		bool third = false, vendor = false, extra = false, database = false, encryption = false, pseudoclient = false, protocol = false;

		if (param.equals_ci("all"))
			third = vendor = extra = database = encryption = pseudoclient = protocol = true;
		else if (param.equals_ci("third"))
			third = true;
		else if (param.equals_ci("vendor"))
			vendor = true;
		else if (param.equals_ci("extra"))
			extra = true;
		else if (param.equals_ci("database"))
			database = true;
		else if (param.equals_ci("encryption"))
			encryption = true;
		else if (param.equals_ci("pseudoclient"))
			pseudoclient = true;
		else if (param.equals_ci("protocol"))
			protocol = true;
		else
			third = extra = database = encryption = protocol = true;

		Module *protomod = ModuleManager::FindFirstOf(PROTOCOL);

		source.Reply(_("Current module list:"));

		int count = 0;
		for (std::list<Module *>::iterator it = ModuleManager::Modules.begin(), it_end = ModuleManager::Modules.end(); it != it_end; ++it)
		{
			Module *m = *it;

			bool show = false;
			Anope::string mtype;

			if (m->type & PROTOCOL)
			{
				show |= protocol;
				if (!mtype.empty())
					mtype += ", ";
				mtype += "Protocol";
			}
			if (m->type & PSEUDOCLIENT)
			{
				show |= pseudoclient;
				if (!mtype.empty())
					mtype += ", ";
				mtype += "Pseudoclient";
			}
			if (m->type & ENCRYPTION)
			{
				show |= encryption;
				if (!mtype.empty())
					mtype += ", ";
				mtype += "Encryption";
			}
			if (m->type & DATABASE)
			{
				show |= database;
				if (!mtype.empty())
					mtype += ", ";
				mtype += "Database";
			}
			if (m->type & EXTRA)
			{
				show |= extra;
				if (!mtype.empty())
					mtype += ", ";
				mtype += "Extra";
			}
			if (m->type & VENDOR)
			{
				show |= vendor;
				if (!mtype.empty())
					mtype += ", ";
				mtype += "Vendor";
			}
			if (m->type & THIRD)
			{
				show |= third;
				if (!mtype.empty())
					mtype += ", ";
				mtype += "Third";
			}

			if (!show)
				continue;
			else if (m->type & PROTOCOL && param.empty() && m != protomod)
				continue;

			++count;

			source.Reply(_("Module: \002%s\002 [%s] [%s]"), m->name.c_str(), m->version.c_str(), mtype.c_str());
		}

		if (!count)
			source.Reply(_("No modules currently loaded matching that criteria."));
		else
			source.Reply(_("%d modules loaded."), count);
	}

	bool OnHelp(CommandSource &source, const Anope::string &subcommand) anope_override
	{
		this->SendSyntax(source);
		source.Reply(" ");
		source.Reply(_("Lists currently loaded modules."));
		return true;
	}
};

class OSModInfo : public Module
{
	CommandOSModInfo commandosmodinfo;
	CommandOSModList commandosmodlist;

 public:
	OSModInfo(const Anope::string &modname, const Anope::string &creator) : Module(modname, creator, VENDOR),
		commandosmodinfo(this), commandosmodlist(this)
	{

	}
};

MODULE_INIT(OSModInfo)
