#include <catch2/catch.hpp>
#include <string>
#include <Magick++/Image.h>
#include "identiconpp.hpp"

using std::string;
#include <iostream>

SCENARIO("ltr_symmetric")
{
    GIVEN("An identicon instance with 2x2 dots")
    {
        Identiconpp identicon(2, 2, Identiconpp::algorithm::ltr_symmetric);
        Magick::Image img;
        Magick::Color black("#000000ff");
        Magick::Color white("#ffffffff");

        WHEN("Digest is \"0\"")
        {
            img = identicon.generate("0", 2);
            THEN("Is completely white")
            {
                REQUIRE(img.pixelColor(0, 0) == white);
                REQUIRE(img.pixelColor(0, 1) == white);
                REQUIRE(img.pixelColor(1, 0) == white);
                REQUIRE(img.pixelColor(1, 1) == white);
            }
        }

        WHEN("Digest is \"f\"")
        {
            img = identicon.generate("f", 2);
            THEN("Is completely black")
            {
                REQUIRE(img.pixelColor(0, 0) == black);
                REQUIRE(img.pixelColor(0, 1) == black);
                REQUIRE(img.pixelColor(1, 0) == black);
                REQUIRE(img.pixelColor(1, 1) == black);
            }
        }

        WHEN("Digest is \"7\"")
        {
            // 0111 = 00
            //        11
            img = identicon.generate("7", 2);
            THEN("Produces white pixel at 0x0")
            {
                REQUIRE(img.pixelColor(0, 0) == white);
            }
            THEN("Produces white pixel at 1x0")
            {
                REQUIRE(img.pixelColor(1, 0) == white);
            }
            THEN("Produces black pixel at 1x0")
            {
                REQUIRE(img.pixelColor(0, 1) == black);
            }
            THEN("Produces black pixel at 1x1")
            {
                REQUIRE(img.pixelColor(1, 1) == black);
            }
        }

        WHEN("Digest is \"8\"")
        {
            // 1000 = 11
            //        00
            img = identicon.generate("8", 2);
            THEN("Produces black pixel at 0x0")
            {
                REQUIRE(img.pixelColor(0, 0) == black);
            }
            THEN("Produces black pixel at 1x0")
            {
                REQUIRE(img.pixelColor(1, 0) == black);
            }
            THEN("Produces white pixel at 1x0")
            {
                REQUIRE(img.pixelColor(0, 1) == white);
            }
            THEN("Produces white pixel at 1x1")
            {
                REQUIRE(img.pixelColor(1, 1) == white);
            }
        }
    }
}