yourpart3/backend/controllers/navigationController.js

import User from '../models/community/user.js';
import UserParam from '../models/community/user_param.js';
import UserRight from '../models/community/user_right.js';
import UserRightType from '../models/type/user_right.js';
import UserParamType  from '../models/type/user_param.js';

const menuStructure = {
    home: {
        visible: ["all"],
        children: {},
        path: "/",
        icon: "logo_mono.png"
    },
    friends: {
        visible: ["all"],
        children: {
            manageFriends : {
                visible: ["all"],
                path: "/socialnetwork/friends",
                icon: "friends24.png"
            }
        },
        showLoggedinFriends: 1,
        icon: "friends24.png"
    },
    socialnetwork: {
        visible: ["all"],
        icon: "socialnetwork.png",
        children: {
            guestbook: {
                visible: ["all"],
                path: "/socialnetwork/guestbook"
            },
            usersearch: {
                visible: ["all"],
                path: "/socialnetwork/search"
            },
            forum: {
                visible: ["all"],
                path: "/socialnetwork/forum",
                showForums: 1
            },
            gallery: {
                visible: ["all"],
                path: "/socialnetwork/gallery"
            },
            blockedUsers: {
                visible: ["all"],
                path: "/socialnetwork/blocked"
            },
            oneTimeInvitation: {
                visible: ["all"],
                path: "/socialnetwork/onetimeinvitation"
            },
            diary: {
                visible: ["all"],
                path: "/socialnetwork/diary"
            }
        }
    },
    chats: {
        visible: ["over12"],
        icon: "chat.png",
        children: {
            multiChat: {
                visible: ["over12"],
                action: "openMultiChat"
            },
            randomChat: {
                visible: ["over12"],
                action: "openRanomChat"
            }
        } 
    },
    falukant: {
        visible: ["all"],
        icon: "falukant16.png",
        children: {
            create: {
                visible: ["nofalukantaccount"],
                path: "/falukant/create"
            },
            overview: {
                visible: ["hasfalukantaccount"],
                path: "/falukant/home"
            },
            towns: {
                visible: ["hasfalukantaccount"],
                path: "/falukant/towns"
            },
            directors: {
                visible: ["hasfalukantaccount"],
                path: "/falukant/directors"
            },
            factory: {
                visible: ["hasfalukantaccount"],
                path: "/falukant/factory"
            },
            family: {
                visible: ["hasfalukantaccount"],
                path: "/falukant/family"
            },
            house: {
                visible: ["hasfalukantaccount"],
                path: "/falukant/house"
            },
            nobility: {
                visible: ["hasfalukantaccount"],
                path: "/falukant/nobility"
            },
            politics: {
                visible: ["hasfalukantaccount"],
                path: "/falukant/politics"
            },
            education: {
                visible: ["hasfalukantaccount"],
                path: "/falukant/education"
            },
            bank: {
                visible: ["hasfalukantaccount"],
                path: "/falukant/bank"
            },
            darknet: {
                visible: ["hasfalukantaccount"],
                path: "/falukant/darknet"
            },
            reputation: {
                visible: ["hasfalukantaccount"],
                path: "/falukant/reputation"
            },
            moneyhistory: {
                visible: ["hasfalukantaccount"],
                path: "/falukant/moneyhistory"
            }
        }
    },
    minigames: {
        visible: ["all"],
        icon: "minigames16.png",
    },
    settings: {
        visible: ["all"],
        icon: "settings16.png",
        children: {
            homepage: {
                visible: ["all"],
                path: "/settings/homepage"
            },
            account: {
                visible: ["all"],
                path: "/settings/account"
            },
            personal: {
                visible: ["all"],
                path: "/settings/personal"
            },
            view: {
                visible: ["all"],
                path: "/settings/view"
            },
            interests: {
                visible: ["all"],
                path: "/settings/interests"
            },
            sexuality: {
                visible: ["over14"],
                path: "/settings/sexuality"
            },
            notifications: {
                visible: ["all"],
                path: "/settings/notifications"
            }
        }
    },
    administration: {
        visible: ["anyadmin"],
        children: {
            contactrequests: {
                visible: ["mainadmin", "contactrequests"],
                path: "/admin/contacts"
            },
            useradministration: {
                visible: ["mainadmin", "useradministration"],
                path: "/admin/users"
            },
            forum: {
                visible: ["mainadmin", "forum"],
                path: "/admin/forum"
            },
            userrights: {
                visible: ["mainadmin", "rights"],
                path: "/admin/rights"
            },
            interests: {
                visible: ["mainadmin", "interests"],
                path: "/admin/interests"
            },
            falukant: {
                visible: ["mainadmin", "falukant"],
                children: {
                    logentries: {
                        visible: ["mainadmin", "falukant"],
                        path: "/admin/falukant/logentries"
                    },
                    edituser: {
                        visible: ["mainadmin", "falukant"],
                        path: "/admin/falukant/edituser"
                    },
                    database: {
                        visible: ["mainadmin", "falukant"],
                        path: "/admin/falukant/database"
                    },
                }
            }
        }
    }
};

const calculateAge = (birthDate) => {
    const today = new Date();
    const birthDateObj = new Date(birthDate);
    let age = today.getFullYear() - birthDateObj.getFullYear();
    const monthDiff = today.getMonth() - birthDateObj.getMonth();
    if (monthDiff < 0 || (monthDiff === 0 && today.getDate() < birthDateObj.getDate())) {
        age--;
    }

    return age;
};

const filterMenu = (menu, rights, age) => {
    const filteredMenu = {};
    for (const [key, value] of Object.entries(menu)) {
        if (value.visible.includes("all") 
            || value.visible.some(v => rights.includes(v) 
            || (value.visible.includes("anyadmin") && rights.length > 0))
            || (value.visible.includes("over14") && age >= 14)) {
            const { visible, ...itemWithoutVisible } = value;
            filteredMenu[key] = { ...itemWithoutVisible };
            if (value.children) {
                filteredMenu[key].children = filterMenu(value.children, rights, age);
            }
        }
    }
    return filteredMenu;
};

export const menu = async (req, res) => {
    try {
        const { userid } = req.params;
        const user = await User.findOne({ where: { hashedId: userid } });
        if (!user) {
            return res.status(404).json({ error: 'User not found' });
        }
        const userRights = await UserRight.findAll({
            where: { userId: user.id },
            include: [{
                model: UserRightType,
                as: 'rightType',
                required: false
            }]
        });
        const userBirthdateParams = await UserParam.findAll({
            where: {
                userId: user.id
            },
            include: [
                {
                    model: UserParamType,
                    as: 'paramType',
                    where: {
                        description: 'birthdate'
                    }
                }
            ]
        });
        const ageFunction = function() {
            const birthDate = userBirthdateParams.length > 0 ? userBirthdateParams[0].value : (new Date()).toDateString();
            const age = calculateAge(birthDate);
            return age;
        }
        const age = ageFunction();
        const rights = userRights.map(ur => ur.rightType.title);
        const filteredMenu = filterMenu(menuStructure, rights, age);
        res.status(200).json(filteredMenu);
    } catch (error) {
        console.error('Error fetching menu:', error);
        res.status(500).json({ error: 'An error occurred while fetching the menu' });
    }
};