package org.openautonomousconnection.luascript.runtime;

import org.luaj.vm2.Globals;
import org.openautonomousconnection.luascript.events.LuaEventDispatcher;
import org.openautonomousconnection.luascript.hosts.HostServices;
import org.openautonomousconnection.luascript.security.LuaExecutionPolicy;
import org.openautonomousconnection.luascript.security.LuaSecurityManager;
import org.openautonomousconnection.luascript.tables.console.ConsoleTable;
import org.openautonomousconnection.luascript.tables.DomTable;
import org.openautonomousconnection.luascript.tables.EventsTable;
import org.openautonomousconnection.luascript.tables.UiTable;

import java.util.Objects;

/**
 * High-level entry point for wiring Lua tables + bootstrap + event routing.
 */
public final class LuaRuntime implements AutoCloseable {

    private final Globals globals;
    private final HostServices services;

    private final LuaSecurityManager securityManager;
    private final LuaEventDispatcher dispatcher;
    private final LuaEventRouter eventRouter;

    public LuaRuntime(Globals globals, HostServices services) {
        this(globals, services, LuaExecutionPolicy.uiDefault());
    }

    public LuaRuntime(Globals globals, HostServices services, LuaExecutionPolicy policy) {
        this.globals = Objects.requireNonNull(globals, "globals");
        this.services = Objects.requireNonNull(services, "services");
        Objects.requireNonNull(policy, "policy");

        this.securityManager = new LuaSecurityManager();
        this.dispatcher = new LuaEventDispatcher(globals, securityManager, policy);
        this.eventRouter = new LuaEventRouter(dispatcher);
    }

    public Globals globals() {
        return globals;
    }

    public LuaEventRouter eventRouter() {
        return eventRouter;
    }

    public void installStdTables(boolean overwrite) {
        new UiTable().inject(globals, services, overwrite);
        new ConsoleTable().inject(globals, services, overwrite);
        new EventsTable(dispatcher).inject(globals, services, overwrite);
        new DomTable().inject(globals, services, overwrite);
    }

    public void bootstrapFromDom() {
        LuaScriptBootstrap.bootstrap(globals, services, dispatcher);
    }

    @Override
    public void close() {
        securityManager.close();
    }
}