module Tests;

import Core.ArrayList;
import Core.Test;
import Core.Types;
import Core.Meta;

template class Core::ArrayList<size_t, 20>;
using IntList = Core::ArrayList<size_t, 20>;

static void testAdd() {
    IntList list;
    list.add(5u);
    Core::test(5, list[0]);
    Core::test(5, list.getLast());
    const IntList& cList = list;
    Core::test(5, cList.getLast());
    Core::test(1, list.getLength());
}

static void testMultipleAdd() {
    IntList list;
    list.add(4u).add(3u).add(2u);
    Core::test(4, list[0]);
    Core::test(3, list[1]);
    Core::test(2, list[2]);
    Core::test(3, list.getLength());
}

static void testAddReplace() {
    IntList list;
    list.add(5u);
    list[0] = 3;
    Core::test(3, list[0]);
}

static void testClear() {
    IntList list;
    list.add(5u).add(4u);
    list.clear();
    Core::test(0, list.getLength());
}

static void testOverflow(bool light) {
    IntList list;
    for(size_t i = 0; i < 20; i++) {
        list.add(i);
    }
    size_t limit = light ? 1000 : 100'000;
    for(size_t i = 0; i < limit; i++) {
        list.add(i);
    }
    for(size_t i = 0; i < list.getLength(); i++) {
        Core::test(i, list[i]);
    }
}

static void testCopy() {
    IntList list;
    list.add(1u).add(2u).add(3u);
    IntList copy(list);
    Core::test(list.getLength(), copy.getLength());
    for(size_t i = 0; i < copy.getLength() && i < list.getLength(); i++) {
        Core::test(list[i], copy[i]);
    }
}

static void testCopyAssignment() {
    IntList list;
    list.add(1u).add(2u).add(3u);
    IntList copy;
    copy = list;
    Core::test(list.getLength(), copy.getLength());
    for(size_t i = 0; i < copy.getLength() && i < list.getLength(); i++) {
        Core::test(list[i], copy[i]);
    }
}

static void testMove() {
    IntList list;
    list.add(1u).add(2u).add(3u);
    IntList move(Core::move(list));
    Core::test(0, list.getLength());
    Core::test(3, move.getLength());
    Core::test(1, move[0]);
    Core::test(2, move[1]);
    Core::test(3, move[2]);
}

static void testMoveAssignment() {
    IntList list;
    list.add(1u).add(2u).add(3u);
    IntList move;
    move = Core::move(list);
    Core::test(0, list.getLength());
    Core::test(3, move.getLength());
    Core::test(1, move[0]);
    Core::test(2, move[1]);
    Core::test(3, move[2]);
}

static void testToString() {
    IntList list;
    list.add(1u).add(243u).add(423u);
    Core::testString("[1, 243, 423]", list);
    Core::testString("[1]", IntList().add(1u));
    Core::testString("[]", IntList());
}

static void testRemoveBySwap() {
    IntList list;
    list.add(4u).add(3u).add(2u);
    list.removeBySwap(0);
    Core::test(2, list[0]);
    Core::test(3, list[1]);
    Core::test(2, list.getLength());
    list.removeBySwap(1);
    Core::test(2, list[0]);
    Core::test(1, list.getLength());
    list.removeBySwap(0);
    Core::test(0, list.getLength());
}

static void testRemove() {
    IntList list;
    list.add(4u).add(3u).add(2u);
    list.remove(0);
    Core::test(3, list[0]);
    Core::test(2, list[1]);
    Core::test(2, list.getLength());
    list.remove(1);
    Core::test(3, list[0]);
    Core::test(1, list.getLength());
    list.removeLast();
    Core::test(0, list.getLength());
}

static void testForRange() {
    IntList list;
    list.add(1u).add(2u).add(3u);
    for(size_t& i : list) {
        i++;
    }
    for(size_t i = 0; i < list.getLength(); i++) {
        Core::test(i + 2, list[i]);
    }
}

static int arrayListInstances = 0;

struct ArrayListTest final {
    int value;

    ArrayListTest(int i) noexcept : value(i) {
        arrayListInstances++;
    }

    ArrayListTest(const ArrayListTest& o) = delete;

    ArrayListTest(ArrayListTest&& o) noexcept : value(o.value) {
        arrayListInstances++;
    }

    ~ArrayListTest() {
        arrayListInstances--;
    }

    ArrayListTest& operator=(ArrayListTest&& o) noexcept {
        value = o.value;
        return *this;
    }

    ArrayListTest& operator=(const ArrayListTest& o) = delete;
};

static void testInsert() {
    /*Core::ArrayList<ArrayListTest, 5> l;
    l.addAt(0, 1);
    Core::test(1, l.getLength());
    Core::test(1, l[0].value);
    Core::test(1, arrayListInstances);

    l.addAt(0, 2);
    Core::test(2, l.getLength());
    Core::test(2, l[0].value);
    Core::test(1, l[1].value);
    Core::test(2, arrayListInstances);

    l.addAt(0, 3);
    Core::test(3, l.getLength());
    Core::test(3, l[0].value);
    Core::test(2, l[1].value);
    Core::test(1, l[2].value);
    Core::test(3, arrayListInstances);

    l.addAt(1, 4);
    Core::test(4, l.getLength());
    Core::test(3, l[0].value);
    Core::test(4, l[1].value);
    Core::test(2, l[2].value);
    Core::test(1, l[3].value);
    Core::test(4, arrayListInstances);

    l.addAt(2, 5);
    Core::test(5, l.getLength());
    Core::test(3, l[0].value);
    Core::test(4, l[1].value);
    Core::test(5, l[2].value);
    Core::test(2, l[3].value);
    Core::test(1, l[4].value);
    Core::test(5, arrayListInstances);

    l.addAt(5, 4);
    Core::test(5, l.getLength());
    Core::test(3, l[0].value);
    Core::test(4, l[1].value);
    Core::test(5, l[2].value);
    Core::test(2, l[3].value);
    Core::test(1, l[4].value);
    Core::test(5, arrayListInstances);

    l.clear();
    Core::test(0, arrayListInstances);
    */
}

void testArrayList(bool light) {
    testAdd();
    testMultipleAdd();
    testAddReplace();
    testClear();
    testOverflow(light);
    testCopy();
    testCopyAssignment();
    testMove();
    testMoveAssignment();
    testToString();
    testRemoveBySwap();
    testRemove();
    testForRange();
    testInsert();
}