// libvle -- library for building Vim-like applications
// Copyright (C) 2019 xaizek <xaizek@posteo.net>
//
// This file is part of libvle.
//
// libvle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// libvle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with libvle.  If not, see <https://www.gnu.org/licenses/>.

#include "Mode.hpp"

#include <deque>
#include <stdexcept>
#include <utility>

using namespace vle;

Shortcut::Shortcut(std::wstring shortcut, std::function<void(void)> handler,
                   std::string descr)
    : Shortcut(std::vector<std::wstring>{ std::move(shortcut) },
               std::move(handler), std::move(descr))
{ }

Shortcut::Shortcut(std::wstring shortcut, std::function<void(int)> handler,
                   std::string descr)
    : Shortcut(std::vector<std::wstring>{ std::move(shortcut) },
               std::move(handler), std::move(descr))
{ }

Shortcut::Shortcut(std::vector<std::wstring> shortcuts,
                   std::function<void(void)> handler, std::string descr)
    : shortcuts(std::move(shortcuts)), descr(std::move(descr))
{
    this->handler = [handler](int /*count*/) {
        handler();
    };
}

Shortcut::Shortcut(std::vector<std::wstring> shortcuts,
                   std::function<void(int)> handler, std::string descr)
    : shortcuts(std::move(shortcuts)), handler(std::move(handler)),
      descr(std::move(descr))
{ }

Mode::Mode(std::string id) : id(std::move(id)), useCount(false)
{ }

void
Mode::addShortcut(Shortcut shortcut)
{
    for (const std::wstring &lhs : shortcut.shortcuts) {
        if (lhs.length() > 4U) {
            throw std::invalid_argument("Shortcut value is too long");
        }

        if (!seenShortcuts.emplace(lhs).second) {
            throw std::invalid_argument("Duplicated shortcut");
        }
    }

    shortcuts.emplace_back(std::move(shortcut));
}