WindowID StatusWindowID;

void InitStatusWindow() {
    Window *window = CreateWind();
    StatusWindowID = window->id;
    Buffer *buffer = CreateBuffer(SysAllocator, GetUniqueBufferName(ProjectFolder, "status_bar"));
    buffer->special = true;
    View *view = CreateView(buffer->id);
    view->special = true;
    window->active_view = view->id;
    window->draw_line_numbers = false;
    window->draw_scrollbar = false;
    window->draw_line_highlight = true;
    window->secondary_window_style = true;
    window->primary = false;
    window->jump_history = false;
    window->lose_focus_on_escape = true;
}

void LayoutStatusWindow(Rect2I *rect, int16_t wx, int16_t wy) {
    Unused(wx); Unused(wy);
    Window *window = GetWindow(StatusWindowID);
    Rect2I copy_rect = *rect;
    if (!window->visible) {
        rect = &copy_rect;
    }
    Int barsize = GetExpandingBarSize(window);
    window->document_rect = window->total_rect = CutBottom(rect, barsize);
}

void UpdateStatusWindow() {
    ProfileFunction();
    Scratch scratch;
    BSet main = GetBSet(PrimaryWindowID);
    BSet title = GetBSet(StatusWindowID);
    title.view->scroll.y = 0;
    if (title.window->id == ActiveWindowID) {
        return;
    }

#if 0
    Vec2I doc_rect = GetSize(title.window->document_rect);
    Int width_in_chars = doc_rect.x / title.window->font->char_spacing;

    char buff[1024];
    for (int i = 0; i < 1024; i += 1) buff[i] = ' ';

    RawReplaceText(title.buffer, GetRange(title.buffer), u"");
    RawAppendf(title.buffer, "%.*s", width_in_chars - 1, buff);
    RawAppendf(title.buffer, "@");
    return;
#endif

    String16 buffer_string = GetString(title.buffer);
    Range replace_range = {0, title.buffer->len};
    Seek(buffer_string, u"\n", &replace_range.max);

    Caret caret = main.view->carets[0];
    XY xy = PosToXY(main.buffer, GetFront(caret));

    String indicators = "";
    if (main.buffer->dirty) {
        indicators = Format(scratch, "%S!", indicators);
    }
    if (SearchCaseSensitive) {
        indicators = Format(scratch, "%SC", indicators);
    }
    if (SearchWordBoundary) {
        indicators = Format(scratch, "%SW", indicators);
    }

    String commands = Format(scratch, ":Errors[%d]", ErrorCount);
    if (main.buffer->changed_on_disk) {
        commands = Format(scratch, "%S :Reopen", commands);
    }
    For (ActiveProcesses) {
        if (it.args.output_view == main.view->id) {
            commands = Format(scratch, "%S :KillProcess", commands);
            break;
        }
    }

    String s = Format(scratch, "%S:%lld:%lld %S | :Prev :Next :Close %S", main.buffer->name, (long long)xy.line + 1ll, (long long)xy.col + 1ll, indicators, commands);
    For (ActiveProcesses) {
        if (it.args.output_view == main.view->id) {
            s = Format(scratch, "%S %lld :KillProcess", s, (long long)it.id);
        }
    }

    String16 string            = ToString16(scratch, s);
    String16 string_to_replace = GetString(title.buffer, replace_range);
    if (string_to_replace != string) {
        SelectRange(title.view, replace_range);
        ReplaceEx(scratch, title.view, string);
    }

    SelectRange(title.view, MakeRange(0));
    ResetHistory(title.buffer);
}