/****************************************************************************
 Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.

 http://www.cocos.com

 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated engine source code (the "Software"), a limited,
 worldwide, royalty-free, non-assignable, revocable and non-exclusive license
 to use Cocos Creator solely to develop games on your target platforms. You shall
 not use Cocos Creator software for developing other software or tools that's
 used for developing games. You are not granted to publish, distribute,
 sublicense, and/or sell copies of Cocos Creator.

 The software or tools in this License Agreement are licensed, not sold.
 Xiamen Yaji Software Co., Ltd. reserves all rights not expressly granted to you.

 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
 ****************************************************************************/

#include "PlayerMenuServiceWin.h"
#include "cocos/base/DeferredReleasePool.h"
#include "cocos/base/Log.h"
#include "cocos/base/UTF8.h"

PLAYER_NS_BEGIN

PlayerMenuItemWin *PlayerMenuItemWin::create(const std::string &menuId, const std::string &title) {
    PlayerMenuItemWin *item = new PlayerMenuItemWin();
    item->_menuId           = menuId;
    item->_title            = title;
    item->addRef();
    cc::DeferredReleasePool::add(item);
    return item;
}

PlayerMenuItemWin::PlayerMenuItemWin()
: _parent(nullptr), _commandId(0), _hmenu(NULL), _menubarEnabled(true) {
}

PlayerMenuItemWin::~PlayerMenuItemWin() {
    CC_SAFE_RELEASE(_parent);
    if (_hmenu) {
        CC_LOG_DEBUG("PlayerMenuItemWin::~PlayerMenuItemWin() - %s (HMENU)", _menuId.c_str());
        DestroyMenu(_hmenu);
    } else {
        CC_LOG_DEBUG("PlayerMenuItemWin::~PlayerMenuItemWin() - %s", _menuId.c_str());
    }
}

void PlayerMenuItemWin::setTitle(const std::string &title) {
    if (title.length() == 0) {
        CC_LOG_DEBUG("MenuServiceWin::setTitle() - can not set menu title to empty, menu id (%s)", _menuId.c_str());
        return;
    }

    MENUITEMINFO menuitem;
    menuitem.cbSize = sizeof(menuitem);
    menuitem.fMask  = MIIM_FTYPE | MIIM_STRING;
    menuitem.fType  = (title.compare("-") == 0) ? MFT_SEPARATOR : MFT_STRING;
    std::u16string u16title;
    cc::StringUtils::UTF8ToUTF16(title, u16title);
    menuitem.dwTypeData = (LPTSTR)u16title.c_str();
    if (SetMenuItemInfo(_parent->_hmenu, _commandId, MF_BYCOMMAND, &menuitem)) {
        _title = title;
    } else {
        DWORD err = GetLastError();
        CC_LOG_DEBUG("MenuServiceWin::setTitle() - set menu title failed, menu id (%s). error code = %u", _menuId.c_str(), err);
    }
}

void PlayerMenuItemWin::setEnabled(bool enabled) {
    MENUITEMINFO menuitem = {0};
    menuitem.cbSize       = sizeof(menuitem);
    menuitem.fMask        = MIIM_STATE;
    menuitem.fState       = (enabled && _menubarEnabled) ? MFS_ENABLED : MFS_DISABLED;
    if (SetMenuItemInfo(_parent->_hmenu, _commandId, MF_BYCOMMAND, &menuitem)) {
        _isEnabled = enabled;
    } else {
        DWORD err = GetLastError();
        CC_LOG_DEBUG("MenuServiceWin::setEnabled() - set menu enabled failed, menu id (%s). error code = %u", _menuId.c_str(), err);
    }
}

void PlayerMenuItemWin::setChecked(bool checked) {
    MENUITEMINFO menuitem;
    menuitem.cbSize = sizeof(menuitem);
    menuitem.fMask  = MIIM_STATE;
    menuitem.fState = (checked) ? MFS_CHECKED : MFS_UNCHECKED;
    if (SetMenuItemInfo(_parent->_hmenu, _commandId, MF_BYCOMMAND, &menuitem)) {
        _isChecked = checked;
    } else {
        DWORD err = GetLastError();
        CC_LOG_DEBUG("MenuServiceWin::setChecked() - set menu checked failed, menu id (%s). error code = %u", _menuId.c_str(), err);
    }
}

void PlayerMenuItemWin::setShortcut(const std::string &shortcut) {
}

// MenuServiceWin

WORD PlayerMenuServiceWin::_newCommandId = 0x1000;

PlayerMenuServiceWin::PlayerMenuServiceWin(HWND hwnd)
: _hwnd(hwnd), _menubarEnabled(true) {
    // create menu
    _root._menuId    = "__ROOT__";
    _root._commandId = 0;

    // hwnd has menu
    HMENU menu = GetSystemMenu(hwnd, FALSE); // GetMenu(hwnd);
    if (menu) {
        _root._hmenu = menu;
    } else {
        _root._hmenu = CreateMenu();
        SetMenu(hwnd, _root._hmenu);
    }
}

PlayerMenuServiceWin::~PlayerMenuServiceWin() {
}

PlayerMenuItem *PlayerMenuServiceWin::addItem(const std::string &menuId,
                                              const std::string &title,
                                              const std::string &parentId,
                                              int                order /* = MAX_ORDER */) {
    if (menuId.length() == 0 || title.length() == 0) {
        CC_LOG_DEBUG("MenuServiceWin::addItem() - menuId and title must is non-empty");
        return nullptr;
    }

    // check menu id is exists
    if (_items.find(menuId) != _items.end()) {
        CC_LOG_DEBUG("MenuServiceWin::addItem() - menu id (%s) is exists", menuId.c_str());
        return false;
    }

    // set parent
    PlayerMenuItemWin *parent = &_root;
    if (parentId.length()) {
        // query parent menu
        auto it = _items.find(parentId);
        if (it != _items.end()) {
            parent = it->second;
        }
    }

    if (!parent->_hmenu) {
        // create menu handle for parent (convert parent to submenu)
        parent->_hmenu   = CreateMenu();
        parent->_isGroup = true;
        MENUITEMINFO menuitem;
        menuitem.cbSize   = sizeof(menuitem);
        menuitem.fMask    = MIIM_SUBMENU;
        menuitem.hSubMenu = parent->_hmenu;
        if (!SetMenuItemInfo(parent->_parent->_hmenu, parent->_commandId, MF_BYCOMMAND, &menuitem)) {
            DWORD err = GetLastError();
            CC_LOG_DEBUG("MenuServiceWin::addItem() - set menu handle failed, menu id (%s). error code = %u", parent->_menuId.c_str(), err);
            return nullptr;
        }
    }

    // create new menu item
    _newCommandId++;
    PlayerMenuItemWin *item = PlayerMenuItemWin::create(menuId, title);
    item->_commandId        = _newCommandId;
    item->_parent           = parent;
    item->_parent->addRef();

    // add menu item to menu bar
    MENUITEMINFO menuitem;
    menuitem.cbSize = sizeof(menuitem);
    menuitem.fMask  = MIIM_FTYPE | MIIM_ID | MIIM_STATE | MIIM_STRING;
    menuitem.fType  = (item->_title.compare("-") == 0) ? MFT_SEPARATOR : MFT_STRING;
    menuitem.fState = (item->_isEnabled) ? MFS_ENABLED : MFS_DISABLED;
    menuitem.fState |= (item->_isChecked) ? MFS_CHECKED : MFS_UNCHECKED;
    std::u16string u16title;
    cc::StringUtils::UTF8ToUTF16(item->_title, u16title);
    menuitem.dwTypeData = (LPTSTR)u16title.c_str();
    menuitem.wID        = _newCommandId;

    // check new menu item position
    if (order > parent->_children.size()) {
        order = parent->_children.size();
    } else if (order < 0) {
        order = 0;
    }

    // create new menu item
    if (!InsertMenuItem(parent->_hmenu, order, TRUE, &menuitem)) {
        DWORD err = GetLastError();
        CC_LOG_DEBUG("MenuServiceWin::addItem() - insert new menu item failed, menu id (%s). error code = %u", item->_menuId.c_str(), err);
        item->release();
        return nullptr;
    }

    // update menu state
    parent->_children.insert(order, item);
    _items[item->_menuId]               = item;
    _commandId2menuId[item->_commandId] = item->_menuId;
    updateChildrenOrder(parent);

    return item;
}

PlayerMenuItem *PlayerMenuServiceWin::addItem(const std::string &menuId,
                                              const std::string &title) {
    return addItem(menuId, title, "");
}

PlayerMenuItem *PlayerMenuServiceWin::getItem(const std::string &menuId) {
    auto it = _items.find(menuId);
    if (it == _items.end()) {
        CC_LOG_DEBUG("MenuServiceWin::getItem() - Invalid menu id (%s)", menuId.c_str());
        return nullptr;
    }

    return it->second;
}

bool PlayerMenuServiceWin::removeItem(const std::string &menuId) {
    return removeItemInternal(menuId, true);
}

void PlayerMenuServiceWin::setMenuBarEnabled(bool enabled) {
    _menubarEnabled = enabled;

    UINT state = enabled ? MFS_ENABLED : MFS_DISABLED;
    for (auto it = _root._children.begin(); it != _root._children.end(); ++it) {
        PlayerMenuItemWin *item     = *it;
        MENUITEMINFO       menuitem = {0};
        menuitem.cbSize             = sizeof(menuitem);
        menuitem.fMask              = MIIM_STATE;
        menuitem.fState             = state;
        SetMenuItemInfo(item->_parent->_hmenu, item->_commandId, MF_BYCOMMAND, &menuitem);
        item->_menubarEnabled = enabled;
    }
}

PlayerMenuItemWin *PlayerMenuServiceWin::getItemByCommandId(WORD commandId) {
    auto it = _commandId2menuId.find(commandId);
    if (it == _commandId2menuId.end()) return nullptr;
    return _items[it->second];
}

bool PlayerMenuServiceWin::removeItemInternal(const std::string &menuId, bool isUpdateChildrenOrder) {
    auto it = _items.find(menuId);
    if (it == _items.end()) {
        CC_LOG_DEBUG("MenuServiceWin::removeItem() - Invalid menu id (%s)", menuId.c_str());
        return false;
    }

    PlayerMenuItemWin *item = it->second;
    if (item->_children.size() == 0) {
        if (!DeleteMenu(item->_parent->_hmenu, item->_commandId, MF_BYCOMMAND)) {
            DWORD err = GetLastError();
            CC_LOG_DEBUG("MenuServiceWin::removeItem() - remove menu item failed, menu id (%s). error code = %u", item->_menuId.c_str(), err);
            return false;
        }

        // remove item from parent
        bool  removed  = false;
        auto *children = &item->_parent->_children;
        for (auto it = children->begin(); it != children->end(); ++it) {
            if ((*it)->_commandId == item->_commandId) {
                CC_LOG_DEBUG("MenuServiceWin::removeItem() - remove menu item (%s)", item->_menuId.c_str());
                children->erase(it);
                removed = true;
                break;
            }
        }

        if (!removed) {
            CC_LOG_DEBUG("MenuServiceWin::removeItem() - remove menu item (%s) failed, not found command id from parent->children", item->_menuId.c_str());
        }

        // remove menu id mapping
        _items.erase(menuId);
        _commandId2menuId.erase(item->_commandId);
        if (isUpdateChildrenOrder) {
            updateChildrenOrder(item->_parent);
        }
        DrawMenuBar(_hwnd);
        return true;
    } else {
        // remove all children
        while (item->_children.size() != 0) {
            PlayerMenuItemWin *child = *item->_children.begin();
            if (!removeItemInternal(child->_menuId.c_str(), false)) {
                break;
                return false;
            }
        }
        return removeItemInternal(menuId, true);
    }

    return false;
}

void PlayerMenuServiceWin::updateChildrenOrder(PlayerMenuItemWin *parent) {
    auto *children = &parent->_children;
    int   order    = 0;
    for (auto it = children->begin(); it != children->end(); ++it) {
        (*it)->_order = order;
        order++;
    }
}

PLAYER_NS_END
