//
// Test Suite for C-API GEOSEquals

#include <tut/tut.hpp>
// geos
#include <geos/constants.h>
#include <geos_c.h>
// std
#include <cstring>

#include "capi_test_utils.h"

namespace tut {
//
// Test Group
//

// Common data used in test cases.
struct test_capigeosequals_data : public capitest::utility {};

typedef test_group<test_capigeosequals_data> group;
typedef group::object object;

group test_capigeosequals_group("capi::GEOSEquals");

//
// Test Cases
//

template<>
template<>
void object::test<1>
()
{
    geom1_ = fromWKT("POLYGON EMPTY");
    geom2_ = fromWKT("POLYGON EMPTY");

    ensure_equals(GEOSEquals(geom1_, geom2_), 1);
    ensure_equals(GEOSEquals(geom2_, geom1_), 1);
}

template<>
template<>
void object::test<2>
()
{
    geom1_ = fromWKT("POINT(2 3)");
    geom2_ = fromWKT("POINT(2 2)");

    char const r1 = GEOSEquals(geom1_, geom2_);
    ensure_equals(int(r1), 0);

    char const r2 = GEOSEquals(geom2_, geom1_);
    ensure_equals(int(r2), 0);
}

template<>
template<>
void object::test<3>
()
{
    geom1_ = fromWKT("MULTIPOLYGON(((0 0,0 10,10 10,10 0,0 0)))");
    geom2_ = fromWKT("POLYGON((0 0,0 10,10 10,10 0,0 0))");

    char const r1 = GEOSEquals(geom1_, geom2_);
    ensure_equals(int(r1), 1);

    char const r2 = GEOSEquals(geom2_, geom1_);
    ensure_equals(int(r2), 1);
}

// This is a test for bug #357 (GEOSEquals with nan coords)
template<>
template<>
void object::test<4>
()
{
    GEOSCoordSequence* cs = GEOSCoordSeq_create(5, 2);

    GEOSCoordSeq_setX(cs, 0, 1);
    GEOSCoordSeq_setY(cs, 0, 1);
    for(unsigned int i = 1; i < 4; ++i) {
        GEOSCoordSeq_setX(cs, i, geos::DoubleNotANumber);
        GEOSCoordSeq_setY(cs, i, geos::DoubleNotANumber);
    }
    GEOSCoordSeq_setX(cs, 4, 1);
    GEOSCoordSeq_setY(cs, 4, 1);

    geom1_ = GEOSGeom_createPolygon(GEOSGeom_createLinearRing(cs),
                                    nullptr, 0);

    char const r1 = GEOSEquals(geom1_, geom1_);
    ensure_equals(int(r1), 2);
}

// This is a test for bug #357 (GEOSEquals with inf coords)
template<>
template<>
void object::test<5>
()
{
    const char* hex =
        "0103000020E61000000100000005000000737979F3DDCC2CC0F92154F9E7534540000000000000F07F000000000000F07F8F806E993F7E55C0304B29FFEA8554400634E8D1DD424540B5FEE6A37FCD4540737979F3DDCC2CC0F92154F9E7534540";

    geom1_ = GEOSGeomFromHEX_buf((unsigned char*)hex, std::strlen(hex));
    ensure(nullptr != geom1_);

    char const r1 = GEOSEquals(geom1_, geom1_);
    ensure_equals(int(r1), 2);
}

#if 0
// FAILS
// https://trac.osgeo.org/geos/ticket/752
// GEOSEquals with collection inputs
template<>
template<>
void object::test<6>
()
{
    const char* wkt1 = "GEOMETRYCOLLECTION("
                       "POLYGON ((0 0, 0 4, 4 4, 4 0, 0 0)),"
                       "POLYGON ((3 3, 3 4, 4 4, 4 3, 3 3))"
                       ")";

    geom1_ = fromWKT(wkt1);

    char const r1 = GEOSEquals(geom1_, geom1_);
    ensure_equals(int(r1), 1);
}
#endif


template<>
template<>
void object::test<7>()
{
    set_test_name("GEOSEquals with automatic linearization");

    useContext();

    geom1_ = fromWKT("CIRCULARSTRING (0 0, 1 1, 2 0)");
    geom2_ = fromWKT("CIRCULARSTRING (0 0, 1 1, 2 0)");

    ensure(geom1_);
    ensure(geom2_);

    ensure_equals(GEOSEquals_r(ctxt_, geom1_, geom2_), 2);
    ensure_equals(GEOSEquals_r(ctxt_, geom2_, geom1_), 2);

    useCurveConversion();

    ensure_equals(GEOSEquals_r(ctxt_, geom1_, geom2_), 1);
    ensure_equals(GEOSEquals_r(ctxt_, geom2_, geom1_), 1);
}

} // namespace tut

