const db = require('../models');
const FileDBApi = require('./file');
const crypto = require('crypto');
const Utils = require('../utils');

const bcrypt = require('bcrypt');
const config = require('../../config');



const Sequelize = db.Sequelize;
const Op = Sequelize.Op;

module.exports = class UsersDBApi {
    
    static async create(data, options) {
        const currentUser = (options && options.currentUser) || { id: null };
        const transaction = (options && options.transaction) || undefined;


        const users = await db.users.create(
            {
                id: data.data.id || undefined,
        
        firstName: data.data.firstName
        ||
        null
            ,
            
        lastName: data.data.lastName
        ||
        null
            ,
            
        phoneNumber: data.data.phoneNumber
        ||
        null
            ,
            
        email: data.data.email
        ||
        null
            ,
            
        disabled: data.data.disabled
        ||
        false
        
            ,
            
        password: data.data.password
        ||
        null
            ,
            
        emailVerified: data.data.emailVerified
        ||
        true
        
            ,
            
        emailVerificationToken: data.data.emailVerificationToken
        ||
        null
            ,
            
        emailVerificationTokenExpiresAt: data.data.emailVerificationTokenExpiresAt
        ||
        null
            ,
            
        passwordResetToken: data.data.passwordResetToken
        ||
        null
            ,
            
        passwordResetTokenExpiresAt: data.data.passwordResetTokenExpiresAt
        ||
        null
            ,
            
        provider: data.data.provider
        ||
        null
            ,
            
            importHash: data.data.importHash || null,
            createdById: currentUser.id,
            updatedById: currentUser.id,
    },
        { transaction },
    );

        
        
        if (!data.data.app_role) {
            const role = await db.roles.findOne({
                where: { name: 'User' },
            });
            if (role) {
                await users.setApp_role(role, {
                    transaction,
                });
            }
        }else{
            await users.setApp_role(data.data.app_role || null, {
                transaction,
            });
        }
        
        

        
        await users.setCustom_permissions(data.data.custom_permissions || [], {
            transaction,
        });
        

        
        await FileDBApi.replaceRelationFiles(
            {
                belongsTo: db.users.getTableName(),
                belongsToColumn: 'avatar',
                belongsToId: users.id,
            },
            data.data.avatar,
            options,
        );
        

        return users;
    }
    

    

    static async bulkImport(data, options) {
        const currentUser = (options && options.currentUser) || { id: null };
        const transaction = (options && options.transaction) || undefined;

        // Prepare data - wrapping individual data transformations in a map() method
        const usersData = data.map((item, index) => ({
                id: item.id || undefined,
                
                firstName: item.firstName
            ||
            null
            ,
            
                lastName: item.lastName
            ||
            null
            ,
            
                phoneNumber: item.phoneNumber
            ||
            null
            ,
            
                email: item.email
            ||
            null
            ,
            
                disabled: item.disabled
            ||
            false
        
            ,
            
                password: item.password
            ||
            null
            ,
            
                emailVerified: item.emailVerified
            ||
            false
        
            ,
            
                emailVerificationToken: item.emailVerificationToken
            ||
            null
            ,
            
                emailVerificationTokenExpiresAt: item.emailVerificationTokenExpiresAt
            ||
            null
            ,
            
                passwordResetToken: item.passwordResetToken
            ||
            null
            ,
            
                passwordResetTokenExpiresAt: item.passwordResetTokenExpiresAt
            ||
            null
            ,
            
                provider: item.provider
            ||
            null
            ,
            
            importHash: item.importHash || null,
            createdById: currentUser.id,
            updatedById: currentUser.id,
            createdAt: new Date(Date.now() + index * 1000),
    }));

        // Bulk create items
        const users = await db.users.bulkCreate(usersData, { transaction });

        // For each item created, replace relation files
        
        for (let i = 0; i < users.length; i++) {
            await FileDBApi.replaceRelationFiles(
                {
                    belongsTo: db.users.getTableName(),
                    belongsToColumn: 'avatar',
                    belongsToId: users[i].id,
                },
                data[i].avatar,
                options,
            );
        }
        

        return users;
    }

    static async update(id, data,  options) {
        const currentUser = (options && options.currentUser) || {id: null};
        const transaction = (options && options.transaction) || undefined;
        

        const users = await db.users.findByPk(id, {}, {transaction});


        

        if (!data?.app_role) {
            data.app_role = users?.app_role?.id;
        }
        if (!data?.custom_permissions) {
            data.custom_permissions = users?.custom_permissions?.map(item => item.id);
        }

        if (data.password) {
            data.password = bcrypt.hashSync(
                data.password,
                config.bcrypt.saltRounds,
            );
        } else {
            data.password = users.password;
        }
        

        const updatePayload = {};
        
        if (data.firstName !== undefined) updatePayload.firstName = data.firstName;
        
        
        if (data.lastName !== undefined) updatePayload.lastName = data.lastName;
        
        
        if (data.phoneNumber !== undefined) updatePayload.phoneNumber = data.phoneNumber;
        
        
        if (data.email !== undefined) updatePayload.email = data.email;
        
        
        if (data.disabled !== undefined) updatePayload.disabled = data.disabled;
        
        
        if (data.password !== undefined) updatePayload.password = data.password;
        
        
        if (data.emailVerified !== undefined) updatePayload.emailVerified = data.emailVerified;
        
        else updatePayload.emailVerified = true;
        
        
        if (data.emailVerificationToken !== undefined) updatePayload.emailVerificationToken = data.emailVerificationToken;
        
        
        if (data.emailVerificationTokenExpiresAt !== undefined) updatePayload.emailVerificationTokenExpiresAt = data.emailVerificationTokenExpiresAt;
        
        
        if (data.passwordResetToken !== undefined) updatePayload.passwordResetToken = data.passwordResetToken;
        
        
        if (data.passwordResetTokenExpiresAt !== undefined) updatePayload.passwordResetTokenExpiresAt = data.passwordResetTokenExpiresAt;
        
        
        if (data.provider !== undefined) updatePayload.provider = data.provider;
        
        
        updatePayload.updatedById = currentUser.id;

        await users.update(updatePayload, {transaction});

        
        
        if (data.app_role !== undefined) {
            await users.setApp_role(
              
              data.app_role,
              
              { transaction }
            );
        }
        

        
        
        if (data.custom_permissions !== undefined) {
            await users.setCustom_permissions(data.custom_permissions, { transaction });
        }
        

        
        await FileDBApi.replaceRelationFiles(
            {
                belongsTo: db.users.getTableName(),
                belongsToColumn: 'avatar',
                belongsToId: users.id,
            },
            data.avatar,
            options,
        );
        

        return users;
    }

    static async deleteByIds(ids, options) {
        const currentUser = (options && options.currentUser) || { id: null };
        const transaction = (options && options.transaction) || undefined;

        const users = await db.users.findAll({
            where: {
                id: {
                    [Op.in]: ids,
                },
            },
            transaction,
        });

        await db.sequelize.transaction(async (transaction) => {
            for (const record of users) {
                await record.update(
                    {deletedBy: currentUser.id},
                    {transaction}
                );
            }
            for (const record of users) {
                await record.destroy({transaction});
            }
        });


        return users;
    }

    static async remove(id, options) {
        const currentUser = (options && options.currentUser) || {id: null};
        const transaction = (options && options.transaction) || undefined;

        const users = await db.users.findByPk(id, options);

        await users.update({
            deletedBy: currentUser.id
        }, {
            transaction,
        });

        await users.destroy({
            transaction
        });

        return users;
    }

    static async findBy(where, options) {
        const transaction = (options && options.transaction) || undefined;

        const users = await db.users.findOne(
            { where },
            { transaction },
        );

        if (!users) {
            return users;
        }

        const output = users.get({plain: true});

        
        
        
        
        
        output.avatar = await users.getAvatar({
            transaction
        });
        
        
        output.app_role = await users.getApp_role({
            transaction
        });
        
        if (output.app_role) {
            output.app_role_permissions = await output.app_role.getPermissions({
                transaction,
            });
        }
        
        
        output.custom_permissions = await users.getCustom_permissions({
            transaction
        });
        
        

        return output;
    }

    static async findAll(
          filter,
           options
        ) {
        const limit = filter.limit || 0;
        let offset = 0;
        let where = {};
        const currentPage = +filter.page;

        

        

        offset = currentPage * limit;

        const orderBy = null;

    const transaction = (options && options.transaction) || undefined;

    let include = [

      {
        model: db.roles,
        as: 'app_role',
        
        where: filter.app_role ? {
          [Op.or]: [
            { id: { [Op.in]: filter.app_role.split('|').map(term => Utils.uuid(term)) } },
            {
              name: {
                [Op.or]: filter.app_role.split('|').map(term => ({ [Op.iLike]: `%${term}%` }))
              }
            },
          ]
        } : {},
        
      },


      {
        model: db.permissions,
        as: 'custom_permissions',
        required: false,
      },


      {
        model: db.file,
        as: 'avatar',
      },

    ];

        if (filter) {
            if (filter.id) {
                where = {
                    ...where,
                    ['id']: Utils.uuid(filter.id),
                };
            }

            
            if (filter.firstName) {
                where = {
                    ...where,
                    [Op.and]: Utils.ilike(
                        'users',
                        'firstName',
                        filter.firstName,
                    ),
                };
            }
            
            if (filter.lastName) {
                where = {
                    ...where,
                    [Op.and]: Utils.ilike(
                        'users',
                        'lastName',
                        filter.lastName,
                    ),
                };
            }
            
            if (filter.phoneNumber) {
                where = {
                    ...where,
                    [Op.and]: Utils.ilike(
                        'users',
                        'phoneNumber',
                        filter.phoneNumber,
                    ),
                };
            }
            
            if (filter.email) {
                where = {
                    ...where,
                    [Op.and]: Utils.ilike(
                        'users',
                        'email',
                        filter.email,
                    ),
                };
            }
            
            if (filter.password) {
                where = {
                    ...where,
                    [Op.and]: Utils.ilike(
                        'users',
                        'password',
                        filter.password,
                    ),
                };
            }
            
            if (filter.emailVerificationToken) {
                where = {
                    ...where,
                    [Op.and]: Utils.ilike(
                        'users',
                        'emailVerificationToken',
                        filter.emailVerificationToken,
                    ),
                };
            }
            
            if (filter.passwordResetToken) {
                where = {
                    ...where,
                    [Op.and]: Utils.ilike(
                        'users',
                        'passwordResetToken',
                        filter.passwordResetToken,
                    ),
                };
            }
            
            if (filter.provider) {
                where = {
                    ...where,
                    [Op.and]: Utils.ilike(
                        'users',
                        'provider',
                        filter.provider,
                    ),
                };
            }
            

            
            

            
            if (filter.emailVerificationTokenExpiresAtRange) {
                const [start, end] = filter.emailVerificationTokenExpiresAtRange;

                if (start !== undefined && start !== null && start !== '') {
                    where = {
                        ...where,
                    emailVerificationTokenExpiresAt: {
                    ...where.emailVerificationTokenExpiresAt,
                            [Op.gte]: start,
                    },
                };
                }

                if (end !== undefined && end !== null && end !== '') {
                    where = {
                        ...where,
                    emailVerificationTokenExpiresAt: {
                    ...where.emailVerificationTokenExpiresAt,
                            [Op.lte]: end,
                    },
                };
                }
            }
            
            if (filter.passwordResetTokenExpiresAtRange) {
                const [start, end] = filter.passwordResetTokenExpiresAtRange;

                if (start !== undefined && start !== null && start !== '') {
                    where = {
                        ...where,
                    passwordResetTokenExpiresAt: {
                    ...where.passwordResetTokenExpiresAt,
                            [Op.gte]: start,
                    },
                };
                }

                if (end !== undefined && end !== null && end !== '') {
                    where = {
                        ...where,
                    passwordResetTokenExpiresAt: {
                    ...where.passwordResetTokenExpiresAt,
                            [Op.lte]: end,
                    },
                };
                }
            }
            

            if (filter.active !== undefined) {
                where = {
                    ...where,
                    active: filter.active === true || filter.active === 'true'
                };
            }

            
            if (filter.disabled) {
                where = {
                    ...where,
                disabled: filter.disabled,
            };
            }
            
            if (filter.emailVerified) {
                where = {
                    ...where,
                emailVerified: filter.emailVerified,
            };
            }
            


      


      if (filter.custom_permissions) {
        const searchTerms = filter.custom_permissions.split('|');

        include = [
          {
            model: db.permissions,
            as: 'custom_permissions_filter',
            required: searchTerms.length > 0,
            where: searchTerms.length > 0 ? {
              [Op.or]: [
                { id: { [Op.in]: searchTerms.map(term => Utils.uuid(term)) } },
                { 
                  name: {
                    [Op.or]: searchTerms.map(term => ({ [Op.iLike]: `%${term}%` }))
                  }
                }
              ]
            } : undefined
          },
          ...include,
        ]
      }


            if (filter.createdAtRange) {
                const [start, end] = filter.createdAtRange;

                if (start !== undefined && start !== null && start !== '') {
                    where = {
                        ...where,
                        ['createdAt']: {
                            ...where.createdAt,
                            [Op.gte]: start,
                        },
                    };
                }

                if (end !== undefined && end !== null && end !== '') {
                    where = {
                        ...where,
                        ['createdAt']: {
                            ...where.createdAt,
                            [Op.lte]: end,
                        },
                    };
                }
            }
        }
        

        

        const queryOptions = {
            where,
            include,
            distinct: true,
            order: filter.field && filter.sort
                ? [[filter.field, filter.sort]]
                : [['createdAt', 'desc']],
            transaction: options?.transaction,
            logging: console.log
        };

        if (!options?.countOnly) {
            queryOptions.limit = limit ? Number(limit) : undefined;
            queryOptions.offset = offset ? Number(offset) : undefined;
        }

        try {
            const { rows, count } = await db.users.findAndCountAll(queryOptions);

            return {
                rows: options?.countOnly ? [] : rows,
                count: count
            };
        } catch (error) {
            console.error('Error executing query:', error);
            throw error;
        }
    }

    static async findAllAutocomplete(query, limit, offset, ) {
        let where = {};
        
        

        if (query) {
            where = {
                [Op.or]: [
                    { ['id']: Utils.uuid(query) },
                    Utils.ilike(
                        'users',
                        'firstName',
                        query,
                    ),
                ],
            };
        }

        const records = await db.users.findAll({
            attributes: [ 'id', 'firstName' ],
            where,
            limit: limit ? Number(limit) : undefined,
            offset: offset ? Number(offset) : undefined,
            orderBy: [['firstName', 'ASC']],
        });

        return records.map((record) => ({
            id: record.id,
            label: record.firstName,
        }));
    }

    
    static async createFromAuth(data, options) {
        const transaction = (options && options.transaction) || undefined;
        const users = await db.users.create(
            {
                email: data.email,
                firstName: data.firstName,
                authenticationUid: data.authenticationUid,
                password: data.password,
                
            },
            { transaction },
        );

        const app_role = await db.roles.findOne({
            where: { name: config.roles?.user || "User" },
        });
        if (app_role?.id) {
            await users.setApp_role(app_role?.id || null, {
                transaction,
            });
        }

        await users.update(
            {
                authenticationUid: users.id,
            },
            { transaction },
        );

        delete users.password;
        return users;
    }

    static async updatePassword(id, password, options) {
        const currentUser = (options && options.currentUser) || { id: null };

        const transaction = (options && options.transaction) || undefined;

        const users = await db.users.findByPk(id, {
            transaction,
        });

        await users.update(
            {
                password,
                authenticationUid: id,
                updatedById: currentUser.id,
            },
            { transaction },
        );

        return users;
    }

    static async generateEmailVerificationToken(email, options) {
        return this._generateToken(['emailVerificationToken', 'emailVerificationTokenExpiresAt'], email, options);
    }

    static async generatePasswordResetToken(email, options) {
        return this._generateToken(['passwordResetToken', 'passwordResetTokenExpiresAt'], email, options);
    }

    static async findByPasswordResetToken(token, options) {
        const transaction = (options && options.transaction) || undefined;

        return db.users.findOne(
            {
                where: {
                    passwordResetToken: token,
                    passwordResetTokenExpiresAt: {
                        [db.Sequelize.Op.gt]: Date.now(),
                    },
                },
            },
            { transaction },
        );
    }

    static async findByEmailVerificationToken(
        token,
        options,
    ) {
        const transaction = (options && options.transaction) || undefined;
        return db.users.findOne(
            {
                where: {
                    emailVerificationToken: token,
                    emailVerificationTokenExpiresAt: {
                        [db.Sequelize.Op.gt]: Date.now(),
                    },
                },
            },
            { transaction },
        );
    }

    static async markEmailVerified(id, options) {
        const currentUser = (options && options.currentUser) || { id: null };
        const transaction = (options && options.transaction) || undefined;

        const users = await db.users.findByPk(id, {
            transaction,
        });

        await users.update(
            {
                emailVerified: true,
                updatedById: currentUser.id,
            },
            { transaction },
        );

        return true;
    }

    static async _generateToken(keyNames, email, options) {
        const currentUser = (options && options.currentUser) || {id: null};
        const transaction = (options && options.transaction) || undefined;
        const users = await db.users.findOne(
            {
                where: { email: email.toLowerCase() },
            },
            {
                transaction,
            },
        );

        const token = crypto
            .randomBytes(20)
            .toString('hex');
        const tokenExpiresAt = Date.now() + 360000;

        if(users){
            await users.update(
                {
                    [keyNames[0]]: token,
                    [keyNames[1]]: tokenExpiresAt,
                    updatedById: currentUser.id,
                },
                {transaction},
            );
        }


        return token;
    }

    
    
};