yourpart3/backend/services/adminService.js

import UserRight from "../models/community/user_right.js";
import UserRightType from "../models/type/user_right.js";
import InterestType from "../models/type/interest.js"
import InterestTranslationType from "../models/type/interest_translation.js"
import User from "../models/community/user.js";
import UserParamValue from "../models/type/user_param_value.js";

class AdminService {
    async hasUserAccess(userId, section) {
        const userRights = await UserRight.findAll({
/*            where: {
                userId: userId,
            },*/
            include: [{
                model: UserRightType,
                as: 'rightType',
                where: {
                    title: [section, 'mainadmin'],
                }
            },
            {   
                model: User,
                as: 'user',
                where: {
                    hashedId: userId,
                }
            }
            ]
        
        });
        return userRights.length >  0;
    }

    async getOpenInterests(userId) {
        if (!this.hasUserAccess(userId, 'interests')) {
            throw new Error('noaccess');
        }
        const openInterests = await InterestType.findAll({
            where: {
                allowed: false
            },
            include: {
                model: InterestTranslationType,
                as: 'interest_translations',
            }
        })
        return openInterests;
    }

    async changeInterest(userId, interestId, active, adultOnly) {
        if (!this.hasUserAccess(userId, 'interests')) {
            throw new Error('noaccess');
        }
        const interest = await InterestType.findOne({
            where: {
                id: interestId
            }
        });  
        if (interest) {
            interest.allowed = active;
            interest.adultOnly = adultOnly;
            await interest.save();
        }
    }

    async deleteInterest(userId, interestId) {
        if (!this.hasUserAccess(userId, 'interests')) {
            throw new Error('noaccess');
        }
        const interest = await InterestType.findOne({
            where: {
                id: interestId 
            }
        });
        if (interest) {
            await interest.destroy();
        }
    }

    async changeTranslation(userId, interestId, translations) {
        if (!this.hasUserAccess(userId, 'interests')) {
            throw new Error('noaccess');
        }
        const interest = await InterestType.findOne({
            id: interestId
        });
        if (!interest) {
            throw new Error('notexisting');
        }
        for (const languageId of Object.keys(translations)) {
            const languageObject = await UserParamValue.findOne(
                {
                    where: {
                        id: languageId
                    }
                }
            );
            if (!languageObject) {
                throw new Error('wronglanguage');
            }
            const translation = await InterestTranslationType.findOne(
                {
                    where: {
                        interestsId: interestId,
                        language: languageObject.id
                    }
                }
            );
            if (translation) {
                translation.translation = translations[languageId];
                translation.save();
            } else {
                await InterestTranslationType.create({
                    interestsId: interestId,
                    language: languageObject.id,
                    translation: translations[languageId]
                    
                });
            }
        } 
    }
}

export default new AdminService();