package com.ots.project.system.menu.service;
import com.ots.common.constant.UserConstants;
import com.ots.common.utils.MessageUtils;
import com.ots.common.utils.StringUtils;
import com.ots.common.utils.TreeUtils;
import com.ots.common.utils.security.ShiroUtils;
import com.ots.framework.web.domain.Ztree;
import com.ots.project.system.menu.domain.Menu;
import com.ots.project.system.menu.mapper.MenuMapper;
import com.ots.project.system.role.domain.Role;
import com.ots.project.system.role.mapper.RoleMenuMapper;
import com.ots.project.system.user.domain.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.text.MessageFormat;
import java.util.*;

@Service
public class MenuServiceImpl implements IMenuService {
    public static final String PREMISSION_STRING = "perms[\"{0}\"]";
    @Autowired
    private MenuMapper menuMapper;
    @Autowired
    private RoleMenuMapper roleMenuMapper;
    
    @Override
    public List<Menu> selectMenusByUser(User user) {
        List<Menu> menus;
        
        if (user.isAdmin()) {
            menus = menuMapper.selectMenuNormalAll();
        } else {
            menus = menuMapper.selectMenusByUserId(user.getUserId());
        }
        for (int i = 0; i < menus.size(); i++) {
            if (StringUtils.isNotBlank(menus.get(i).getMenuNameCode())) {
                menus.get(i).setMenuName(MessageUtils.message(menus.get(i).getMenuNameCode()));
            }
        }
        return TreeUtils.getChildPerms(menus, 0);
    }
    
    @Override
    public List<Menu> selectMenuList(Menu menu) {
        List<Menu> menuList = null;
        User user = ShiroUtils.getSysUser();
        if (user.isAdmin()) {
            menuList = menuMapper.selectMenuList(menu);
        } else {
            menu.getParams().put("userId", user.getUserId());
            menuList = menuMapper.selectMenuListByUserId(menu);
        }
        return menuList;
    }
    
    @Override
    public List<Menu> selectMenuAll() {
        List<Menu> menuList = null;
        User user = ShiroUtils.getSysUser();
        if (user.isAdmin()) {
            menuList = menuMapper.selectMenuAll();
        } else {
            menuList = menuMapper.selectMenuAllByUserId(user.getUserId());
        }
        return menuList;
    }
    
    @Override
    public Set<String> selectPermsByUserId(Long userId) {
        List<String> perms = menuMapper.selectPermsByUserId(userId);
        Set<String> permsSet = new HashSet<>();
        for (String perm : perms) {
            if (StringUtils.isNotEmpty(perm)) {
                permsSet.addAll(Arrays.asList(perm.trim().split(",")));
            }
        }
        return permsSet;
    }
    
    @Override
    public List<Ztree> roleMenuTreeData(Role role) {
        Long roleId = role.getRoleId();
        List<Ztree> ztrees = new ArrayList<Ztree>();
        List<Menu> menuList = selectMenuAll();
        if (StringUtils.isNotNull(roleId)) {
            List<String> roleMenuList = menuMapper.selectMenuTree(roleId);
            ztrees = initZtree(menuList, roleMenuList, true);
        } else {
            ztrees = initZtree(menuList, null, true);
        }
        return ztrees;
    }
    
    @Override
    public List<Ztree> menuTreeData() {
        List<Menu> menuList = selectMenuAll();
        List<Ztree> ztrees = initZtree(menuList);
        return ztrees;
    }
    
    @Override
    public LinkedHashMap<String, String> selectPermsAll() {
        LinkedHashMap<String, String> section = new LinkedHashMap<>();
        List<Menu> permissions = selectMenuAll();
        if (StringUtils.isNotEmpty(permissions)) {
            for (Menu menu : permissions) {
                section.put(menu.getUrl(), MessageFormat.format(PREMISSION_STRING, menu.getPerms()));
            }
        }
        return section;
    }
    
    public List<Ztree> initZtree(List<Menu> menuList) {
        return initZtree(menuList, null, false);
    }
    
    public List<Ztree> initZtree(List<Menu> menuList, List<String> roleMenuList, boolean permsFlag) {
        List<Ztree> ztrees = new ArrayList<Ztree>();
        boolean isCheck = StringUtils.isNotNull(roleMenuList);
        for (Menu menu : menuList) {
            Ztree ztree = new Ztree();
            ztree.setId(menu.getMenuId());
            ztree.setpId(menu.getParentId());
            ztree.setName(transMenuName(menu, permsFlag));
            ztree.setTitle(menu.getMenuName());
            if (isCheck) {
                ztree.setChecked(roleMenuList.contains(menu.getMenuId() + menu.getPerms()));
            }
            ztrees.add(ztree);
        }
        return ztrees;
    }
    public String transMenuName(Menu menu, boolean permsFlag) {
        StringBuffer sb = new StringBuffer();
        sb.append(menu.getMenuName());
        if (permsFlag) {
            sb.append("<font color=\"#888\">&nbsp;&nbsp;&nbsp;" + menu.getPerms() + "</font>");
        }
        return sb.toString();
    }
    
    @Override
    public int deleteMenuById(Long menuId) {
        ShiroUtils.clearCachedAuthorizationInfo();
        return menuMapper.deleteMenuById(menuId);
    }
    
    @Override
    public Menu selectMenuById(Long menuId) {
        return menuMapper.selectMenuById(menuId);
    }
    
    @Override
    public int selectCountMenuByParentId(Long parentId) {
        return menuMapper.selectCountMenuByParentId(parentId);
    }
    
    @Override
    public int selectCountRoleMenuByMenuId(Long menuId) {
        return roleMenuMapper.selectCountRoleMenuByMenuId(menuId);
    }
    
    @Override
    public int insertMenu(Menu menu) {
        menu.setCreateBy(ShiroUtils.getLoginName());
        ShiroUtils.clearCachedAuthorizationInfo();
        return menuMapper.insertMenu(menu);
    }
    
    @Override
    public int updateMenu(Menu menu) {
        menu.setUpdateBy(ShiroUtils.getLoginName());
        ShiroUtils.clearCachedAuthorizationInfo();
        return menuMapper.updateMenu(menu);
    }
    
    @Override
    public String checkMenuNameUnique(Menu menu) {
        Long menuId = StringUtils.isNull(menu.getMenuId()) ? -1L : menu.getMenuId();
        Menu info = menuMapper.checkMenuNameUnique(menu.getMenuName(), menu.getParentId());
        if (StringUtils.isNotNull(info) && info.getMenuId().longValue() != menuId.longValue()) {
            return UserConstants.MENU_NAME_NOT_UNIQUE;
        }
        return UserConstants.MENU_NAME_UNIQUE;
    }
}