#include "FOO.h"

#include "zeek/Reporter.h"
#include "zeek/analyzer/protocol/tcp/TCP_Reassembler.h"

#include "foo.bif.h"

using namespace btest::analyzer::FOO;
using namespace zeek::analyzer;

FOO_Analyzer::FOO_Analyzer(zeek::Connection* c) : tcp::TCP_ApplicationAnalyzer("FOO", c) {
    interp = new binpac::FOO::FOO_Conn(this);
    had_gap = false;
}

FOO_Analyzer::~FOO_Analyzer() { delete interp; }

void FOO_Analyzer::Done() {
    tcp::TCP_ApplicationAnalyzer::Done();

    interp->FlowEOF(true);
    interp->FlowEOF(false);
}

void FOO_Analyzer::EndpointEOF(bool is_orig) {
    tcp::TCP_ApplicationAnalyzer::EndpointEOF(is_orig);
    interp->FlowEOF(is_orig);
}

void FOO_Analyzer::DeliverStream(int len, const u_char* data, bool orig) {
    tcp::TCP_ApplicationAnalyzer::DeliverStream(len, data, orig);

    if ( TCP() && TCP()->IsPartial() )
        return;

    if ( had_gap )
        // If only one side had a content gap, we could still try to
        // deliver data to the other side if the script layer can handle this.
        return;

    try {
        interp->NewData(orig, data, data + len);
    } catch ( const binpac::Exception& e ) {
        printf("Exception: %s\n", e.what());
        AnalyzerViolation(zeek::util::fmt("Binpac exception: %s", e.what()));
    }
}

void FOO_Analyzer::Undelivered(uint64_t seq, int len, bool orig) {
    tcp::TCP_ApplicationAnalyzer::Undelivered(seq, len, orig);
    had_gap = true;
    interp->NewGap(orig, len);
}
