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#include <fstream>
#include <iostream>
#include <sstream>
#include "fdict.h"
#include "filelib.h"
#include "hg.h"
#include "hg_io.h"
#include "sparse_vector.h"
#include "viterbi.h"
using namespace std;
/*
* Reads hypergraph from JSON file argv[1],
* reweights it using weights from argv[2],
* and outputs viterbi translation.
*
*/
int main(int argc, char** argv)
{
ReadFile rf(argv[1]);
Hypergraph hg;
HypergraphIO::ReadFromJSON(rf.stream(), &hg);
SparseVector<double> v;
ifstream f(argv[2]);
string line;
while (getline(f, line)) {
istringstream ss(line);
string k; weight_t w;
ss >> k >> w;
v.add_value(FD::Convert(k), w);
}
hg.Reweight(v);
clock_t begin = clock();
hg.TopologicallySortNodesAndEdges(hg.NumberOfNodes()-1);
vector<WordID> trans;
ViterbiESentence(hg, &trans);
cout << TD::GetString(trans) << endl << flush;
clock_t end = clock();
double elapsed_secs = double(end - begin) / CLOCKS_PER_SEC;
cout << elapsed_secs << " s" << endl;
}
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