#include "buffer.hh"
#include "assert.hh"
#include "editor.hh"
#include "selectors.hh"

using namespace Kakoune;

void test_buffer()
{
    Buffer buffer("test", Buffer::Type::Scratch, "allo ?\nmais que fais la police\n hein ?\n youpi\n");
    assert(buffer.line_count() == 4);

    BufferIterator i = buffer.begin();
    assert(*i == 'a');
    i += 6;
    assert(buffer.line_and_column_at(i) == BufferCoord{0 COMMA 6});
    i += 1;
    assert(buffer.line_and_column_at(i) == BufferCoord{1 COMMA 0});
    --i;
    assert(buffer.line_and_column_at(i) == BufferCoord{0 COMMA 6});
    ++i;
    assert(buffer.line_and_column_at(i) == BufferCoord{1 COMMA 0});
    buffer.modify(Modification::make_insert(i, "tchou kanaky\n"));
    assert(buffer.line_count() == 5);

    BufferIterator begin = buffer.iterator_at({ 4, 1 });
    BufferIterator end = buffer.iterator_at({ 4, 5 }) + 1;
    String str = buffer.string(begin, end);
    assert(str == "youpi");
}

void test_editor()
{
    Buffer buffer("test", Buffer::Type::Scratch, "test\n\nyoupi\n");
    Editor editor(buffer);

    using namespace std::placeholders;

    editor.select(select_whole_buffer);
    editor.multi_select(std::bind(select_all_matches, _1, "\n\\h*"));
    for (auto& sel : editor.selections())
    {
        assert(*sel.begin() == '\n');
        editor.buffer().modify(Modification::make_erase(sel.begin(), sel.end()));
    }
}

void run_unit_tests()
{
    test_buffer();
    test_editor();
}