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/* Copyright (C) 2005-2025 J.F.Dockes
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the
* Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "docseqsem.h"
#ifdef ENABLE_SEMANTIC
#include <string>
#include <unordered_map>
#include <vector>
#include <sstream>
#include <json/json.h>
#include "log.h"
#include "cmdtalk.h"
#include "rclconfig.h"
#include "rcldb.h"
#include "pathut.h"
static CmdTalk cmd(10);
// Start our worker process if it is not already up. The process is kept up and reused for further
// queries.
static bool maybeStartCmd(const RclConfig *conf)
{
if (cmd.running())
return true;
std::string venvdir;
if (!conf->getConfParam("sem_venv", venvdir)) {
LOGERR("maybeStartCmd: 'sem_venv' not set in configuration\n");
return false;
}
// We run the script with an explicit python command so that it runs in the venv without having
// to deal with the activate script.
auto cmdname = path_cat(venvdir, {"bin", "python3"});
std::vector<std::string> args{path_cat(venvdir, "rclsem_talk.py")};
if (!cmd.startCmd(cmdname, args)) {
LOGERR("startCmd failed \n");
return false;
}
return cmd.running();
}
// Holder for one result
struct Result {
std::string rcludi;
int phridx;
std::string ctxbefore;
std::string segment;
std::string ctxafter;
};
class DocSequenceSem::Internal {
public:
std::shared_ptr<Rcl::Db> db;
// This is set to false after we call runquery from the first getDoc() or getResCnt()
bool needquery{true};
std::string question;
std::vector<Result> results;
bool mayberunquery();
};
bool DocSequenceSem::Internal::mayberunquery()
{
if (!needquery)
return true;
needquery = false;
if (!maybeStartCmd(db->getConf())) {
LOGERR("DocSequenceSem:: could not start command\n");
return false;
}
// Call the worker "query" method with the expected args
std::unordered_map<std::string, std::string> response;
std::unordered_map<std::string, std::string> args {
{"confdir", db->getConf()->getConfDir()},
{"nres", std::to_string(10)},
{"question", question}};
if (!cmd.callproc("query", args, response)) {
LOGERR("getDoc: callproc 'query' failed\n");
return false;
}
// We get the answer as json in the "results" key.
auto it = response.find("results");
if (it == response.end()) {
LOGERR("getDoc: no 'results' in command response\n");
return false;
}
// Do the jsoncpp thing and store the results
Json::Value decoded;
std::istringstream input(it->second);
Json::CharReaderBuilder builder;
builder["collectComments"] = false;
Json::String errs;
if (!Json::parseFromStream(builder, input, &decoded, &errs)) {
LOGERR("Could not parse JSON: " << it->second << "\n");
return false;
}
// The data is a sequence of tuples (rcludi, phridx, ctxbefore, segment, ctxafter)
for (unsigned int i = 0; i < decoded.size(); i++) {
Json::Value& decod_i = decoded[i];
results.push_back({decod_i[0].asString(),
atoi(decod_i[1].asString().c_str()),
decod_i[2].asString(),
decod_i[3].asString(),
decod_i[4].asString()});
}
return true;
}
DocSequenceSem::DocSequenceSem(const std::string& t, std::shared_ptr<Rcl::Db> db,
const std::string& question)
: DocSequence(t)
{
LOGDEB0("DocSequenceSem:: title " << t << " question " << question << '\n');
m = new Internal;
m->db = db;
m->question = question;
}
DocSequenceSem::~DocSequenceSem()
{
delete m;
}
std::shared_ptr<Rcl::Db> DocSequenceSem::getDb()
{
return m->db;
}
bool DocSequenceSem::getDoc(int num, Rcl::Doc &doc, std::string *)
{
LOGDEB0("DocSequenceSem::getDoc: idx " << num << '\n');
if (!m->mayberunquery()) {
LOGERR("DocSequenceSem::getDoc: could not run query\n");
return false;
}
if (num < 0 || num >= (int)m->results.size()) {
LOGERR("DocSequenceSem::getDoc: bad idx " << num << " results size " <<
m->results.size() << '\n');
return false;
}
if (!m->db->getDoc(m->results[num].rcludi, 0, doc, false)) {
LOGERR("DocSequenceSem::getDoc: db->getDoc failed for " <<
m->results[num].rcludi << "\n");
return false;
}
// Set the segment and its context as document abstract
doc.meta[Rcl::Doc::keyabs] = m->results[num].ctxbefore +
"<br/><em>" + m->results[num].segment + "</em></br>" + m->results[num].ctxafter;
//doc.dump();
return true;
}
int DocSequenceSem::getResCnt()
{
if (!m->mayberunquery()) {
LOGERR("DocSequenceSem::getResCnt: could not run query\n");
return false;
}
LOGDEB0("DocSequenceSem::getResCnt(): return " << m->results.size() << '\n');
return (int)m->results.size();
}
bool DocSequenceSem::getAbstract(Rcl::Doc &doc, PlainToRich *, std::vector<std::string>& out, bool)
{
LOGDEB0("DocSequenceSem::getAbstract:\n");
std::string abs;
doc.getmeta(Rcl::Doc::keyabs, &abs);
out.push_back(abs);
return true;
}
#endif // ENABLE_SEMANTIC
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