const models = require("../../models");

module.exports = socket => {
    return async (data) => {
        let options = {where: {}, include: [{model: models.Semester, require: true}]};
        if (data.number)
            options.where.number = data.number;
        if (data.semester) {
            let s = await models.Semester.findByPk(data.semester);
            if (!s) {
                socket.emit("groupGet", {error: {message: "semester_not_found"}});
                return
            }
            options.include[0].where = {id: s.id};
        }
        if (data.users)
            options.include.push({model: models.User, require: true});

        socket.emit("groupGet", await models.Group.findAll(options));
    }
};