//
// Copyright (c) 2014-present Benjamin Kaufmann
//
// This file is part of Clasp. See https://potassco.org/clasp/
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.
//
// Add the libclasp directory to the list of
// include directories of your build system.
#include "example.h"
#include <clasp/clasp_facade.h>
#include <clasp/solver.h>
//  This example uses the ClaspFacade to compute the stable models of the program:
//     a :- not b.
//     b :- not a.
//
//  It is similar to example2() but uses generator based solving.
void example3(Clasp::SolveMode mode) {
    // See example2()
    Clasp::ClaspConfig config;
    config.solve.numModels = 0;

    // The "interface" to the clasp library.
    Clasp::ClaspFacade libclasp;

    // See example2()
    Clasp::Asp::LogicProgram& asp = libclasp.startAsp(config);
    addSimpleProgram(asp);

    // We are done with problem setup.
    // Prepare the problem for solving.
    libclasp.prepare();

    // Start the solving process.
    std::cout << "With Clasp::" << (Potassco::test(mode, Clasp::SolveMode::async) ? "AsyncYield" : "Yield") << "\n";
    Clasp::ClaspFacade::SolveHandle it = libclasp.solve(mode | Clasp::SolveMode::yield);
    // Get models one by one until the iterator is exhausted.
    while (it.model()) {
        printModel(libclasp.ctx.output, *it.model());
        // Resume search for next model.
        it.resume();
    }
    std::cout << "No more models!" << std::endl;
}

void example3() {
    example3(Clasp::SolveMode::def);
#if CLASP_HAS_THREADS
    example3(Clasp::SolveMode::async);
#endif
}
