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

module.exports = socket => {
    return async (data) => {
        let startDate = data.startDate ? data.startDate : new Date(), endDate = data.endDate ? data.endDate : new Date();
        let options = {where: {startDate: startDate, endDate: endDate}, include: []};
        if (data.semesters) {
            for (let semester of data.semesters) {
                let s = await models.Semester.findByPk(semester);
                if (!s) {
                    socket.emit("agendaGet", {error: {message: "semester_not_found"}});
                    return
                } else
                    options.include.push({model: models.Semester, where: {id: s.id}, require: true});
            }
        }
        if (data.groups) {
            for (let group of data.groups) {
                let g = await models.Group.findByPk(group);
                if (!g) {
                    socket.emit("agendaGet", {error: {message: "group_not_found"}});
                    return
                } else
                    options.include.push({model: models.Group, where: {id: g.id}, require: true});
            }
        }
        if (data.teachers) {
            for (let teacher of data.teachers) {
                let t = await models.User.findByPk(teacher);
                if (!t) {
                    socket.emit("agendaGet", {error: {message: "teacher_not_found"}});
                    return
                } else
                    options.include.push({model: models.User, where: {id: t.email}, require: true});
            }
        }
        socket.emit("agendaGet", await models.Event.findAll(options));
    }
};