#include <catch2/catch_test_macros.hpp>
#include <fmt/core.h>
#include <nlohmann/json.hpp>
#include <fstream>
#include "map.hpp"
#include "worldbuilder.hpp"
#include "lights.hpp"
#include "point.hpp"

using namespace lighting;

TEST_CASE("lighting a map works", "[lighting]") {
  for(int i = 0; i < 5; i++) {
    Map map(20+i,23+i);
    WorldBuilder builder(map);
    builder.generate();

    Point light1 = map.place_entity(0);
    Point light2 = map.place_entity(1);
    LightSource source1{7,1};
    LightSource source2{3,2};

    LightRender lr(map.width(), map.height());

    lr.reset_light();

    lr.set_light_target(light1);
    lr.set_light_target(light2);

    lr.path_light(map.walls());

    lr.render_light(source1, light1);
    lr.render_light(source2, light2);

    lr.clear_light_target(light1);
    lr.clear_light_target(light2);

    const auto &lighting = lr.lighting();

    // confirm light is set at least at and around the two points
    REQUIRE(lighting[light1.y][light1.x] == lighting::LEVELS[source1.strength]);
    REQUIRE(lighting[light2.y][light2.x] == lighting::LEVELS[source2.strength]);
  }
}