/* -*- C++ -*-

  *

  * This file is a part of LEMON, a generic C++ optimization library

  *

  * Copyright (C) 2003-2008

  * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport

  * (Egervary Research Group on Combinatorial Optimization, EGRES).

  *

  * Permission to use, modify and distribute this software is granted

  * provided that this copyright notice appears in all copies. For

  * precise terms see the accompanying LICENSE file.

  *

  * This software is provided "AS IS" with no warranty of any kind,

  * express or implied, and with no claim as to its suitability for any

  * purpose.

  *

  */

 #include <lemon/concepts/graph.h>

 #include <lemon/list_graph.h>

 #include <lemon/smart_graph.h>

 // #include <lemon/full_graph.h>

 // #include <lemon/grid_graph.h>

 #include <lemon/graph_utils.h>

 #include "test_tools.h"

 using namespace lemon;

 using namespace lemon::concepts;

 void check_concepts() {

   { // checking digraph components

     checkConcept<BaseGraphComponent, BaseGraphComponent >();

     checkConcept<IDableGraphComponent<>, 

       IDableGraphComponent<> >();

     checkConcept<IterableGraphComponent<>, 

       IterableGraphComponent<> >();

     checkConcept<MappableGraphComponent<>, 

       MappableGraphComponent<> >();

   }

   {

     checkConcept<Graph, ListGraph>();    

     checkConcept<Graph, SmartGraph>();    

 //     checkConcept<Graph, FullGraph>();    

 //     checkConcept<Graph, Graph>();    

 //     checkConcept<Graph, GridGraph>();

   }

 }

 template <typename Graph>

 void check_item_counts(Graph &g, int n, int e) {

   int nn = 0;

   for (typename Graph::NodeIt it(g); it != INVALID; ++it) {

     ++nn;

   }

   check(nn == n, "Wrong node number.");

   //  check(countNodes(g) == n, "Wrong node number.");

   int ee = 0;

   for (typename Graph::ArcIt it(g); it != INVALID; ++it) {

     ++ee;

   }

   check(ee == 2*e, "Wrong arc number.");

   //  check(countArcs(g) == 2*e, "Wrong arc number.");

   int uee = 0;

   for (typename Graph::EdgeIt it(g); it != INVALID; ++it) {

     ++uee;

   }

   check(uee == e, "Wrong edge number.");

   //  check(countEdges(g) == e, "Wrong edge number.");

 }

 template <typename Graph>

 void check_graph_counts() {

   TEMPLATE_GRAPH_TYPEDEFS(Graph);

   Graph g;

   check_item_counts(g,0,0);

   Node

     n1 = g.addNode(),

     n2 = g.addNode(),

     n3 = g.addNode();

   Edge

     e1 = g.addEdge(n1, n2),

     e2 = g.addEdge(n2, n3);

   check_item_counts(g,3,2);

 }

 template <typename Graph>

 void check_graph_validity() {

   TEMPLATE_GRAPH_TYPEDEFS(Graph);

   Graph g;

   check_item_counts(g,0,0);

   Node

     n1 = g.addNode(),

     n2 = g.addNode(),

     n3 = g.addNode();

   Edge

     e1 = g.addEdge(n1, n2),

     e2 = g.addEdge(n2, n3);

   check(g.valid(n1), "Validity check");

   check(g.valid(e1), "Validity check");

   check(g.valid(g.direct(e1, true)), "Validity check");

   check(!g.valid(g.nodeFromId(-1)), "Validity check");

   check(!g.valid(g.edgeFromId(-1)), "Validity check");

   check(!g.valid(g.arcFromId(-1)), "Validity check");

 }

 template <typename Graph>

 void check_graph_validity_erase() {

   TEMPLATE_GRAPH_TYPEDEFS(Graph);

   Graph g;

   check_item_counts(g,0,0);

   Node

     n1 = g.addNode(),

     n2 = g.addNode(),

     n3 = g.addNode();

   Edge

     e1 = g.addEdge(n1, n2),

     e2 = g.addEdge(n2, n3);

   check(g.valid(n1), "Validity check");

   check(g.valid(e1), "Validity check");

   check(g.valid(g.direct(e1, true)), "Validity check");

   g.erase(n1);

   check(!g.valid(n1), "Validity check");

   check(g.valid(n2), "Validity check");

   check(g.valid(n3), "Validity check");

   check(!g.valid(e1), "Validity check");

   check(g.valid(e2), "Validity check");

   check(!g.valid(g.nodeFromId(-1)), "Validity check");

   check(!g.valid(g.edgeFromId(-1)), "Validity check");

   check(!g.valid(g.arcFromId(-1)), "Validity check");

 }

 // void checkGridGraph(const GridGraph& g, int w, int h) {

 //   check(g.width() == w, "Wrong width");

 //   check(g.height() == h, "Wrong height");

 //   for (int i = 0; i < w; ++i) {

 //     for (int j = 0; j < h; ++j) {

 //       check(g.col(g(i, j)) == i, "Wrong col");

 //       check(g.row(g(i, j)) == j, "Wrong row");

 //     }

 //   }

 //   for (int i = 0; i < w; ++i) {

 //     for (int j = 0; j < h - 1; ++j) {

 //       check(g.source(g.down(g(i, j))) == g(i, j), "Wrong down");

 //       check(g.target(g.down(g(i, j))) == g(i, j + 1), "Wrong down");

 //     }

 //     check(g.down(g(i, h - 1)) == INVALID, "Wrong down");

 //   }

 //   for (int i = 0; i < w; ++i) {

 //     for (int j = 1; j < h; ++j) {

 //       check(g.source(g.up(g(i, j))) == g(i, j), "Wrong up");

 //       check(g.target(g.up(g(i, j))) == g(i, j - 1), "Wrong up");

 //     }

 //     check(g.up(g(i, 0)) == INVALID, "Wrong up");

 //   }

 //   for (int j = 0; j < h; ++j) {

 //     for (int i = 0; i < w - 1; ++i) {

 //       check(g.source(g.right(g(i, j))) == g(i, j), "Wrong right");

 //       check(g.target(g.right(g(i, j))) == g(i + 1, j), "Wrong right");      

 //     }

 //     check(g.right(g(w - 1, j)) == INVALID, "Wrong right");    

 //   }

 //   for (int j = 0; j < h; ++j) {

 //     for (int i = 1; i < w; ++i) {

 //       check(g.source(g.left(g(i, j))) == g(i, j), "Wrong left");

 //       check(g.target(g.left(g(i, j))) == g(i - 1, j), "Wrong left");      

 //     }

 //     check(g.left(g(0, j)) == INVALID, "Wrong left");    

 //   }

 // }

 int main() {

   check_concepts();

   check_graph_counts<ListGraph>();

   check_graph_counts<SmartGraph>();

   check_graph_validity_erase<ListGraph>();

   check_graph_validity<SmartGraph>();

 //   {

 //     FullGraph g(5);

 //     check_item_counts(g, 5, 10);

 //   }

 //   {

 //     GridGraph g(5, 6);

 //     check_item_counts(g, 30, 49);

 //     checkGridGraph(g, 5, 6);

 //   }

   std::cout << __FILE__ ": All tests passed.\n";

   return 0;

 }