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package com.firefly.server.http2;

import com.firefly.codec.http2.stream.AbstractHTTP2Connection;
import com.firefly.codec.http2.stream.HTTP2Configuration;
import com.firefly.net.DecoderChain;
import com.firefly.net.EncoderChain;
import com.firefly.net.Server;
import com.firefly.net.tcp.aio.AsynchronousTcpServer;
import com.firefly.utils.lang.AbstractLifeCycle;
import com.firefly.utils.log.LogFactory;
import com.firefly.utils.time.Millisecond100Clock;

public class HTTP2Server extends AbstractLifeCycle {

    private final Server server;
    private final HTTP2Configuration http2Configuration;
    private final String host;
    private final int port;

    public HTTP2Server(String host, int port, HTTP2Configuration http2Configuration,
                       ServerHTTPHandler serverHTTPHandler) {
        this(host, port, http2Configuration, new HTTP2ServerRequestHandler(serverHTTPHandler), serverHTTPHandler);
    }

    public HTTP2Server(String host, int port, HTTP2Configuration http2Configuration, ServerSessionListener listener,
                       ServerHTTPHandler serverHTTPHandler) {
        if (http2Configuration == null)
            throw new IllegalArgumentException("the http2 configuration is null");

        if (host == null)
            throw new IllegalArgumentException("the http2 server host is empty");

        this.host = host;
        this.port = port;

        DecoderChain decoder;
        EncoderChain encoder;

        if (http2Configuration.isSecureConnectionEnabled()) {
            decoder = new ServerSecureDecoder(new HTTP1ServerDecoder(new HTTP2ServerDecoder()));
            encoder = new HTTP1ServerEncoder(new HTTP2ServerEncoder(new ServerSecureEncoder()));
        } else {
            decoder = new HTTP1ServerDecoder(new HTTP2ServerDecoder());
            encoder = new HTTP1ServerEncoder(new HTTP2ServerEncoder());
        }

        http2Configuration.getTcpConfiguration().setDecoder(decoder);
        http2Configuration.getTcpConfiguration().setEncoder(encoder);
        http2Configuration.getTcpConfiguration()
                .setHandler(new HTTP2ServerHandler(http2Configuration, listener, serverHTTPHandler));
        this.server = new AsynchronousTcpServer(http2Configuration.getTcpConfiguration());
        this.http2Configuration = http2Configuration;
    }

    public HTTP2Configuration getHttp2Configuration() {
        return http2Configuration;
    }

    public String getHost() {
        return host;
    }

    public int getPort() {
        return port;
    }

    @Override
    protected void init() {
        server.listen(host, port);
    }

    @Override
    protected void destroy() {
        if (server != null) {
            server.stop();
        }
        AbstractHTTP2Connection.stopScheduler();
        LogFactory.getInstance().stop();
        Millisecond100Clock.stop();
    }

}