/*
 * main.cpp -- test Color (JavaScript binding)
 *
 * Copyright (c) 2013-2016 Malikania Authors
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include <gtest/gtest.h>

#include <malikania/js-color.hpp>

using namespace malikania;

class TestColor : public testing::Test {
protected:
    UniqueContext m_ctx;

public:
    TestColor()
    {
        duk_push_object(m_ctx);
        duk_put_global_string(m_ctx, "Malikania");
        dukx_load_color(m_ctx);
    }

    int component(const char *name)
    {
        duk_get_global_string(m_ctx, name);
        auto value = duk_require_int(m_ctx, -1);
        duk_pop(m_ctx);

        return value;
    }
};

/*
 * Valid constructors
 * ------------------------------------------------------------------
 */

TEST_F(TestColor, ConstructorNoArgs)
{
    try {
        auto ret = duk_peval_string(m_ctx,
            "c = Malikania.Color();"
            "r = c.red;"
            "g = c.green;"
            "b = c.blue;"
            "a = c.alpha;"
        );

        if (ret != 0)
            throw dukx_exception(m_ctx, -1);

        ASSERT_EQ(0, component("r"));
        ASSERT_EQ(0, component("g"));
        ASSERT_EQ(0, component("b"));
        ASSERT_EQ(255, component("a"));
    } catch (const std::exception &ex) {
        FAIL() << ex.what();
    }
}

TEST_F(TestColor, ConstructorString)
{
    try {
        auto ret = duk_peval_string(m_ctx,
            "c = Malikania.Color('white');"
            "r = c.red;"
            "g = c.green;"
            "b = c.blue;"
            "a = c.alpha;"
        );

        if (ret != 0)
            throw dukx_exception(m_ctx, -1);

        ASSERT_EQ(255, component("r"));
        ASSERT_EQ(255, component("g"));
        ASSERT_EQ(255, component("b"));
        ASSERT_EQ(255, component("a"));
    } catch (const std::exception &ex) {
        FAIL() << ex.what();
    }
}

TEST_F(TestColor, ConstructorStringRgb)
{
    try {
        auto ret = duk_peval_string(m_ctx,
            "c = Malikania.Color('#0000ff');"
            "r = c.red;"
            "g = c.green;"
            "b = c.blue;"
            "a = c.alpha;"
        );

        if (ret != 0)
            throw dukx_exception(m_ctx, -1);

        ASSERT_EQ(0, component("r"));
        ASSERT_EQ(0, component("g"));
        ASSERT_EQ(255, component("b"));
        ASSERT_EQ(255, component("a"));
    } catch (const std::exception &ex) {
        FAIL() << ex.what();
    }
}

TEST_F(TestColor, Constructor3Args)
{
    try {
        auto ret = duk_peval_string(m_ctx,
            "c = Malikania.Color(10, 20, 30);"
            "r = c.red;"
            "g = c.green;"
            "b = c.blue;"
            "a = c.alpha;"
        );

        if (ret != 0)
            throw dukx_exception(m_ctx, -1);

        ASSERT_EQ(10, component("r"));
        ASSERT_EQ(20, component("g"));
        ASSERT_EQ(30, component("b"));
        ASSERT_EQ(255, component("a"));
    } catch (const std::exception &ex) {
        FAIL() << ex.what();
    }
}

TEST_F(TestColor, Constructor4Args)
{
    try {
        auto ret = duk_peval_string(m_ctx,
            "c = Malikania.Color(10, 20, 30, 40);"
            "r = c.red;"
            "g = c.green;"
            "b = c.blue;"
            "a = c.alpha;"
        );

        if (ret != 0)
            throw dukx_exception(m_ctx, -1);

        ASSERT_EQ(10, component("r"));
        ASSERT_EQ(20, component("g"));
        ASSERT_EQ(30, component("b"));
        ASSERT_EQ(40, component("a"));
    } catch (const std::exception &ex) {
        FAIL() << ex.what();
    }
}

TEST_F(TestColor, ConstructorObjectNoAlpha)
{
    try {
        auto ret = duk_peval_string(m_ctx,
            "c = Malikania.Color({ red: 10, green: 20, blue: 30 });"
            "r = c.red;"
            "g = c.green;"
            "b = c.blue;"
            "a = c.alpha;"
        );

        if (ret != 0)
            throw dukx_exception(m_ctx, -1);

        ASSERT_EQ(10, component("r"));
        ASSERT_EQ(20, component("g"));
        ASSERT_EQ(30, component("b"));
        ASSERT_EQ(255, component("a"));
    } catch (const std::exception &ex) {
        FAIL() << ex.what();
    }
}

TEST_F(TestColor, ConstructorObjectAlpha)
{
    try {
        auto ret = duk_peval_string(m_ctx,
            "c = Malikania.Color({ red: 10, green: 20, blue: 30, alpha: 40 });"
            "r = c.red;"
            "g = c.green;"
            "b = c.blue;"
            "a = c.alpha;"
        );

        if (ret != 0)
            throw dukx_exception(m_ctx, -1);

        ASSERT_EQ(10, component("r"));
        ASSERT_EQ(20, component("g"));
        ASSERT_EQ(30, component("b"));
        ASSERT_EQ(40, component("a"));
    } catch (const std::exception &ex) {
        FAIL() << ex.what();
    }
}

TEST_F(TestColor, ConstructorNew)
{
    /*
     * Just one test, function parse the same way, only 'this' or a new object is returned.
     */
    try {
        auto ret = duk_peval_string(m_ctx,
            "c = new Malikania.Color({ red: 10, green: 20, blue: 30, alpha: 40 });"
            "r = c.red;"
            "g = c.green;"
            "b = c.blue;"
            "a = c.alpha;"
        );

        if (ret != 0)
            throw dukx_exception(m_ctx, -1);

        ASSERT_EQ(10, component("r"));
        ASSERT_EQ(20, component("g"));
        ASSERT_EQ(30, component("b"));
        ASSERT_EQ(40, component("a"));
    } catch (const std::exception &ex) {
        FAIL() << ex.what();
    }
}

/*
 * Valid constructors
 * ------------------------------------------------------------------
 */

TEST_F(TestColor, InvalidConstructorArg1)
{
    try {
        auto ret = duk_peval_string(m_ctx,
            "try {"
            "  Malikania.Color(null);"
            "} catch (e) {"
            "  name = e.name;"
            "  correct = (e instanceof TypeError);"
            "}"
        );

        if (ret != 0)
            throw dukx_exception(m_ctx, -1);

        duk_get_global_string(m_ctx, "name");
        ASSERT_STREQ("TypeError", duk_to_string(m_ctx, -1));
        duk_pop(m_ctx);
        duk_get_global_string(m_ctx, "correct");
        ASSERT_TRUE(duk_to_boolean(m_ctx, -1));
        duk_pop(m_ctx);
    } catch (const std::exception &ex) {
        FAIL() << ex.what();
    }
}

TEST_F(TestColor, InvalidConstructorArg2)
{
    try {
        auto ret = duk_peval_string(m_ctx,
            "try {"
            "  Malikania.Color(10, null, 30);"
            "} catch (e) {"
            "  name = e.name;"
            "  correct = (e instanceof TypeError);"
            "}"
        );

        if (ret != 0)
            throw dukx_exception(m_ctx, -1);

        duk_get_global_string(m_ctx, "name");
        ASSERT_STREQ("TypeError", duk_to_string(m_ctx, -1));
        duk_pop(m_ctx);
        duk_get_global_string(m_ctx, "correct");
        ASSERT_TRUE(duk_to_boolean(m_ctx, -1));
        duk_pop(m_ctx);
    } catch (const std::exception &ex) {
        FAIL() << ex.what();
    }
}

TEST_F(TestColor, InvalidConstructorRange1)
{
    try {
        auto ret = duk_peval_string(m_ctx,
            "try {"
            "  Malikania.Color(-1, 20, 30);"
            "} catch (e) {"
            "  name = e.name;"
            "  correct = (e instanceof RangeError);"
            "}"
        );

        if (ret != 0)
            throw dukx_exception(m_ctx, -1);

        duk_get_global_string(m_ctx, "name");
        ASSERT_STREQ("RangeError", duk_to_string(m_ctx, -1));
        duk_pop(m_ctx);
        duk_get_global_string(m_ctx, "correct");
        ASSERT_TRUE(duk_to_boolean(m_ctx, -1));
        duk_pop(m_ctx);
    } catch (const std::exception &ex) {
        FAIL() << ex.what();
    }
}

TEST_F(TestColor, InvalidConstructorRange2)
{
    try {
        auto ret = duk_peval_string(m_ctx,
            "try {"
            "  Malikania.Color(10, 20, 256);"
            "} catch (e) {"
            "  name = e.name;"
            "  correct = (e instanceof RangeError);"
            "}"
        );

        if (ret != 0)
            throw dukx_exception(m_ctx, -1);

        duk_get_global_string(m_ctx, "name");
        ASSERT_STREQ("RangeError", duk_to_string(m_ctx, -1));
        duk_pop(m_ctx);
        duk_get_global_string(m_ctx, "correct");
        ASSERT_TRUE(duk_to_boolean(m_ctx, -1));
        duk_pop(m_ctx);
    } catch (const std::exception &ex) {
        FAIL() << ex.what();
    }
}

TEST_F(TestColor, InvalidConstructorRange3)
{
    try {
        auto ret = duk_peval_string(m_ctx,
            "try {"
            "  Malikania.Color(10, 20, 30, 800);"
            "} catch (e) {"
            "  name = e.name;"
            "  correct = (e instanceof RangeError);"
            "}"
        );

        if (ret != 0)
            throw dukx_exception(m_ctx, -1);

        duk_get_global_string(m_ctx, "name");
        ASSERT_STREQ("RangeError", duk_to_string(m_ctx, -1));
        duk_pop(m_ctx);
        duk_get_global_string(m_ctx, "correct");
        ASSERT_TRUE(duk_to_boolean(m_ctx, -1));
        duk_pop(m_ctx);
    } catch (const std::exception &ex) {
        FAIL() << ex.what();
    }
}

TEST_F(TestColor, InvalidConstructorRange4)
{
    try {
        auto ret = duk_peval_string(m_ctx,
            "try {"
            "  Malikania.Color({ red: -1, green: 20, blue: 30 });"
            "} catch (e) {"
            "  name = e.name;"
            "  correct = (e instanceof RangeError);"
            "}"
        );

        if (ret != 0)
            throw dukx_exception(m_ctx, -1);

        duk_get_global_string(m_ctx, "name");
        ASSERT_STREQ("RangeError", duk_to_string(m_ctx, -1));
        duk_pop(m_ctx);
        duk_get_global_string(m_ctx, "correct");
        ASSERT_TRUE(duk_to_boolean(m_ctx, -1));
        duk_pop(m_ctx);
    } catch (const std::exception &ex) {
        FAIL() << ex.what();
    }
}

TEST_F(TestColor, InvalidConstructorRange5)
{
    try {
        auto ret = duk_peval_string(m_ctx,
            "try {"
            "  Malikania.Color({ red: 10, green: 20, blue: 30, alpha: 800 });"
            "} catch (e) {"
            "  name = e.name;"
            "  correct = (e instanceof RangeError);"
            "}"
        );

        if (ret != 0)
            throw dukx_exception(m_ctx, -1);

        duk_get_global_string(m_ctx, "name");
        ASSERT_STREQ("RangeError", duk_to_string(m_ctx, -1));
        duk_pop(m_ctx);
        duk_get_global_string(m_ctx, "correct");
        ASSERT_TRUE(duk_to_boolean(m_ctx, -1));
        duk_pop(m_ctx);
    } catch (const std::exception &ex) {
        FAIL() << ex.what();
    }
}

TEST_F(TestColor, InvalidConstructorStringUnknown)
{
    try {
        auto ret = duk_peval_string(m_ctx,
            "try {"
            "  Malikania.Color('does not exist');"
            "} catch (e) {"
            "  name = e.name;"
            "  correct = (e instanceof Error);"
            "}"
        );

        if (ret != 0)
            throw dukx_exception(m_ctx, -1);

        duk_get_global_string(m_ctx, "name");
        ASSERT_STREQ("Error", duk_to_string(m_ctx, -1));
        duk_pop(m_ctx);
        duk_get_global_string(m_ctx, "correct");
        ASSERT_TRUE(duk_to_boolean(m_ctx, -1));
        duk_pop(m_ctx);
    } catch (const std::exception &ex) {
        FAIL() << ex.what();
    }
}

TEST_F(TestColor, InvalidConstructorStringRgb)
{
    try {
        auto ret = duk_peval_string(m_ctx,
            "try {"
            "  Malikania.Color('#ghijkl');"
            "} catch (e) {"
            "  name = e.name;"
            "  correct = (e instanceof Error);"
            "}"
        );

        if (ret != 0)
            throw dukx_exception(m_ctx, -1);

        duk_get_global_string(m_ctx, "name");
        ASSERT_STREQ("Error", duk_to_string(m_ctx, -1));
        duk_pop(m_ctx);
        duk_get_global_string(m_ctx, "correct");
        ASSERT_TRUE(duk_to_boolean(m_ctx, -1));
        duk_pop(m_ctx);
    } catch (const std::exception &ex) {
        FAIL() << ex.what();
    }
}

/*
 * Require.
 * ------------------------------------------------------------------
 *
 * TypeTraits<Color>::require expect to have a valid color, it raises an error for any invalid component. Only alpha
 * can be ommitted but if it is present and incorrect, an exception is also raised.
 */

TEST_F(TestColor, requireSuccess)
{
    try {
        duk_push_c_function(m_ctx, [] (auto ctx) {
            Color color = dukx_require_color(ctx, 0);

            duk_push_uint(ctx, color.red());
            duk_put_global_string(ctx, "r");
            duk_push_uint(ctx, color.green());
            duk_put_global_string(ctx, "g");
            duk_push_uint(ctx, color.blue());
            duk_put_global_string(ctx, "b");
            duk_push_uint(ctx, color.alpha());
            duk_put_global_string(ctx, "a");

            return 0;
        }, 1);
        duk_put_global_string(m_ctx, "draw");

        auto ret = duk_peval_string(m_ctx, "draw('#ff0000');");

        if (ret != 0)
            throw dukx_exception(m_ctx, -1);

        duk_get_global_string(m_ctx, "r");
        ASSERT_EQ(255U, duk_to_uint(m_ctx, -1));
        duk_pop(m_ctx);
        duk_get_global_string(m_ctx, "g");
        ASSERT_EQ(0U, duk_to_uint(m_ctx, -1));
        duk_pop(m_ctx);
        duk_get_global_string(m_ctx, "b");
        ASSERT_EQ(0U, duk_to_uint(m_ctx, -1));
        duk_pop(m_ctx);
        duk_get_global_string(m_ctx, "a");
        ASSERT_EQ(255U, duk_to_uint(m_ctx, -1));
        duk_pop(m_ctx);
    } catch (const std::exception &ex) {
        FAIL() << ex.what();
    }
}

TEST_F(TestColor, requireFail)
{
    try {
        duk_push_c_function(m_ctx, [] (auto ctx) {
            dukx_require_color(ctx, 0);

            return 0;
        }, 1);
        duk_put_global_string(m_ctx, "draw");

        auto ret = duk_peval_string(m_ctx,
            "try {"
            "  draw('#ghijkl');"
            "} catch (e) {"
            "  name = e.name;"
            "  correct = (e instanceof Error);"
            "}"
        );

        if (ret != 0)
            throw dukx_exception(m_ctx, -1);

        duk_get_global_string(m_ctx, "name");
        ASSERT_STREQ("Error", duk_to_string(m_ctx, -1));
        duk_pop(m_ctx);
        duk_get_global_string(m_ctx, "correct");
        ASSERT_TRUE(duk_to_boolean(m_ctx, -1));
        duk_pop(m_ctx);
    } catch (const std::exception &ex) {
        FAIL() << ex.what();
    }
}

TEST_F(TestColor, requireFailAlpha)
{
    try {
        duk_push_c_function(m_ctx, [] (auto ctx) {
            dukx_require_color(ctx, 0);

            return 0;
        }, 1);
        duk_put_global_string(m_ctx, "draw");

        auto ret = duk_peval_string(m_ctx,
            "try {"
            "  draw({ red: 10, green: 20, blue: 30, alpha: 800 });"
            "} catch (e) {"
            "  name = e.name;"
            "  correct = (e instanceof RangeError);"
            "}"
        );

        if (ret != 0)
            throw dukx_exception(m_ctx, -1);

        duk_get_global_string(m_ctx, "name");
        ASSERT_STREQ("RangeError", duk_to_string(m_ctx, -1));
        duk_pop(m_ctx);
        duk_get_global_string(m_ctx, "correct");
        ASSERT_TRUE(duk_to_boolean(m_ctx, -1));
        duk_pop(m_ctx);
    } catch (const std::exception &ex) {
        FAIL() << ex.what();
    }
}

/*
 * Get.
 * ------------------------------------------------------------------
 *
 * TypeTraits<Color>::get readjust any invalid values.
 */

TEST_F(TestColor, getNormal)
{
    try {
        duk_push_c_function(m_ctx, [] (auto ctx) {
            Color color = dukx_get_color(ctx, 0);

            duk_push_uint(ctx, color.red());
            duk_put_global_string(ctx, "r");
            duk_push_uint(ctx, color.green());
            duk_put_global_string(ctx, "g");
            duk_push_uint(ctx, color.blue());
            duk_put_global_string(ctx, "b");
            duk_push_uint(ctx, color.alpha());
            duk_put_global_string(ctx, "a");

            return 0;
        }, 1);
        duk_put_global_string(m_ctx, "draw");

        auto ret = duk_peval_string(m_ctx, "draw('#ff0000');");

        if (ret != 0)
            throw dukx_exception(m_ctx, -1);

        duk_get_global_string(m_ctx, "r");
        ASSERT_EQ(255U, duk_to_uint(m_ctx, -1));
        duk_pop(m_ctx);
        duk_get_global_string(m_ctx, "g");
        ASSERT_EQ(0U, duk_to_uint(m_ctx, -1));
        duk_pop(m_ctx);
        duk_get_global_string(m_ctx, "b");
        ASSERT_EQ(0U, duk_to_uint(m_ctx, -1));
        duk_pop(m_ctx);
        duk_get_global_string(m_ctx, "a");
        ASSERT_EQ(255U, duk_to_uint(m_ctx, -1));
        duk_pop(m_ctx);
    } catch (const std::exception &ex) {
        FAIL() << ex.what();
    }
}

TEST_F(TestColor, getAdjustRgb)
{
    try {
        duk_push_c_function(m_ctx, [] (auto ctx) {
            Color color = dukx_get_color(ctx, 0);

            duk_push_uint(ctx, color.red());
            duk_put_global_string(ctx, "r");
            duk_push_uint(ctx, color.green());
            duk_put_global_string(ctx, "g");
            duk_push_uint(ctx, color.blue());
            duk_put_global_string(ctx, "b");
            duk_push_uint(ctx, color.alpha());
            duk_put_global_string(ctx, "a");

            return 0;
        }, 1);
        duk_put_global_string(m_ctx, "draw");

        auto ret = duk_peval_string(m_ctx, "draw('#ghijkl');");

        if (ret != 0)
            throw dukx_exception(m_ctx, -1);

        duk_get_global_string(m_ctx, "r");
        ASSERT_EQ(0U, duk_to_uint(m_ctx, -1));
        duk_pop(m_ctx);
        duk_get_global_string(m_ctx, "g");
        ASSERT_EQ(0U, duk_to_uint(m_ctx, -1));
        duk_pop(m_ctx);
        duk_get_global_string(m_ctx, "b");
        ASSERT_EQ(0U, duk_to_uint(m_ctx, -1));
        duk_pop(m_ctx);
        duk_get_global_string(m_ctx, "a");
        ASSERT_EQ(255U, duk_to_uint(m_ctx, -1));
        duk_pop(m_ctx);
    } catch (const std::exception &ex) {
        FAIL() << ex.what();
    }
}

TEST_F(TestColor, getAdjustAll)
{
    try {
        duk_push_c_function(m_ctx, [] (auto ctx) {
            Color color = dukx_get_color(ctx, 0);

            duk_push_uint(ctx, color.red());
            duk_put_global_string(ctx, "r");
            duk_push_uint(ctx, color.green());
            duk_put_global_string(ctx, "g");
            duk_push_uint(ctx, color.blue());
            duk_put_global_string(ctx, "b");
            duk_push_uint(ctx, color.alpha());
            duk_put_global_string(ctx, "a");

            return 0;
        }, 1);
        duk_put_global_string(m_ctx, "draw");

        auto ret = duk_peval_string(m_ctx, "draw({ red: -1, green: 256, blue: 100, alpha: 800 });");

        if (ret != 0)
            throw dukx_exception(m_ctx, -1);

        duk_get_global_string(m_ctx, "r");
        ASSERT_EQ(0U, duk_to_uint(m_ctx, -1));
        duk_pop(m_ctx);
        duk_get_global_string(m_ctx, "g");
        ASSERT_EQ(255U, duk_to_uint(m_ctx, -1));
        duk_pop(m_ctx);
        duk_get_global_string(m_ctx, "b");
        ASSERT_EQ(100U, duk_to_uint(m_ctx, -1));
        duk_pop(m_ctx);
        duk_get_global_string(m_ctx, "a");
        ASSERT_EQ(255U, duk_to_uint(m_ctx, -1));
        duk_pop(m_ctx);
    } catch (const std::exception &ex) {
        FAIL() << ex.what();
    }
}

TEST_F(TestColor, getSomethingElse)
{
    try {
        duk_push_c_function(m_ctx, [] (auto ctx) {
            Color color = dukx_get_color(ctx, 0);

            duk_push_uint(ctx, color.red());
            duk_put_global_string(ctx, "r");
            duk_push_uint(ctx, color.green());
            duk_put_global_string(ctx, "g");
            duk_push_uint(ctx, color.blue());
            duk_put_global_string(ctx, "b");
            duk_push_uint(ctx, color.alpha());
            duk_put_global_string(ctx, "a");

            return 0;
        }, 1);
        duk_put_global_string(m_ctx, "draw");

        auto ret = duk_peval_string(m_ctx, "draw(null);");

        if (ret != 0)
            throw dukx_exception(m_ctx, -1);

        duk_get_global_string(m_ctx, "r");
        ASSERT_EQ(0U, duk_to_uint(m_ctx, -1));
        duk_pop(m_ctx);
        duk_get_global_string(m_ctx, "g");
        ASSERT_EQ(0U, duk_to_uint(m_ctx, -1));
        duk_pop(m_ctx);
        duk_get_global_string(m_ctx, "b");
        ASSERT_EQ(0U, duk_to_uint(m_ctx, -1));
        duk_pop(m_ctx);
        duk_get_global_string(m_ctx, "a");
        ASSERT_EQ(255U, duk_to_uint(m_ctx, -1));
        duk_pop(m_ctx);
    } catch (const std::exception &ex) {
        FAIL() << ex.what();
    }
}

int main(int argc, char **argv)
{
    testing::InitGoogleTest(&argc, argv);

    return RUN_ALL_TESTS();
}