#include "zeroerr/assert.h"
#include "zeroerr/unittest.h"

#include "map/Map.h"
#include "map/TileLayer.h"
#include "map/TileSystem.h"
#include "map/TileConfig.h"

#include <string>

using namespace eve::map;

TEST_CASE("map.newLayer.ecsView") {
    auto *mod = Map::create();
    int before = mod->getLayerCount();
    TileLayer *layer = mod->newLayer(4, 3, 16.f, 16.f);
    REQUIRE(layer != nullptr);
    CHECK_EQ(layer->getMapWidth(), 4);
    CHECK_EQ(layer->getMapHeight(), 3);
    CHECK_EQ(layer->getTileWidth(), 16.f);
    CHECK_EQ(layer->getTileHeight(), 16.f);
    CHECK_EQ(mod->getLayerCount(), before + 1);
    CHECK(layer->config()->entity == layer);
}

TEST_CASE("map.layer.setGetTile") {
    auto *mod = Map::create();
    TileLayer *layer = mod->newLayer(3, 2, 32.f, 32.f);
    CHECK_EQ(layer->getTile(0, 0), 0);
    layer->setTile(1, 1, 5);
    CHECK_EQ(layer->getTile(1, 1), 5);
    layer->setTile(-1, 0, 9);  // out of range no-op
    CHECK_EQ(layer->getTile(0, 0), 0);
    layer->fill(7);
    CHECK_EQ(layer->getTile(0, 0), 7);
    CHECK_EQ(layer->getTile(2, 1), 7);
    layer->clear();
    CHECK_EQ(layer->getTile(1, 0), 0);
}

TEST_CASE("map.layer.resizeClears") {
    auto *mod = Map::create();
    TileLayer *layer = mod->newLayer(2, 2, 8.f, 8.f);
    layer->setTile(0, 0, 3);
    layer->resize(4, 1);
    CHECK_EQ(layer->getMapWidth(), 4);
    CHECK_EQ(layer->getMapHeight(), 1);
    CHECK_EQ(layer->getTile(0, 0), 0);
}

TEST_CASE("map.layer.applyConfigFlat") {
    auto *mod = Map::create();
    TileLayer *layer = mod->newLayer(2, 2, 16.f, 16.f);
    const char *json = R"({
        "width": 2,
        "height": 2,
        "tilewidth": 16,
        "tileheight": 16,
        "data": [1, 2, 3, 4],
        "origin": [10, 20],
        "layer": 2,
        "visible": true,
        "tint": [1, 0.5, 0.25, 1]
    })";
    CHECK(layer->applyConfig(json));
    CHECK_EQ(layer->getTile(0, 0), 1);
    CHECK_EQ(layer->getTile(1, 0), 2);
    CHECK_EQ(layer->getTile(0, 1), 3);
    CHECK_EQ(layer->getTile(1, 1), 4);
    CHECK_EQ(layer->getX(), 10.f);
    CHECK_EQ(layer->getY(), 20.f);
    CHECK_EQ(layer->getLayer(), 2);
    CHECK(layer->isVisible());
}

TEST_CASE("map.layer.applyConfigMultiLayerPicksFirst") {
    auto *mod = Map::create();
    TileLayer *layer = mod->newLayer(2, 1, 8.f, 8.f);
    const char *json = R"({
        "width": 2,
        "height": 1,
        "tilewidth": 8,
        "tileheight": 8,
        "layers": [
            { "type": "tilelayer", "width": 2, "height": 1, "data": [9, 8] },
            { "type": "objectgroup", "objects": [] },
            { "type": "tilelayer", "width": 2, "height": 1, "data": [1, 1] }
        ]
    })";
    CHECK(layer->applyConfig(json));
    CHECK_EQ(layer->getTile(0, 0), 9);
    CHECK_EQ(layer->getTile(1, 0), 8);
}

TEST_CASE("map.tileGid.masksFlipFlags") {
    CHECK_EQ(tileGid(0), 0u);
    CHECK_EQ(tileGid(5), 5u);
    CHECK_EQ(tileGid(0x80000005u), 5u);
}

TEST_CASE("map.render.nullSafe") {
    auto *mod = Map::create();
    TileLayer *layer = mod->newLayer(2, 2, 8.f, 8.f);
    layer->fill(1);
    TileRenderSystem::render(nullptr);
}