// Copyright (c) 2016 Adrien Guinet <adrien@guinet.me>
// All rights reserved.
// 
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//     * Redistributions of source code must retain the above copyright
//       notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above copyright
//       notice, this list of conditions and the following disclaimer in the
//       documentation and/or other materials provided with the distribution.
//     * Neither the name of the <organization> nor the
//       names of its contributors may be used to endorse or promote products
//       derived from this software without specific prior written permission.
// 
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#include <pa/app.h>
#include <pa/symbols.h>
#include <pa/subs.h>

void pa::VectorApp::set(Vector const& symbols, Vector const& V)
{
	// AG: TODO: use something else than std::map here!
	std::map<Expr, Expr> sym_rep;
	for (size_t i = 0; i < symbols.size(); i++) {
		sym_rep.insert(std::make_pair(symbols[i], Symbols::arg_symbol(i)));
	}

	// AG: TODO: implement non in-place substitution
	_V = V;
	subs_exprs(_V, sym_rep);
}

pa::Vector pa::VectorApp::operator()(Vector const& x) const
{
	// AG: TODO: use something else than std::map here!
	std::map<Expr, Expr> sym_rep;
	for (size_t i = 0; i < x.size(); i++) {
		sym_rep.insert(std::make_pair(Symbols::arg_symbol(i), x[i]));
	}

	// AG: TODO: implement non in-place substitution
	pa::Vector ret = _V;
	subs_exprs(ret, sym_rep);
	return ret;
}
