/*
 * Copyright 2020 Red Hat, Inc. and/or its affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.example.schooltimetabling.domain;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.ManyToOne;
import javax.validation.constraints.NotBlank;
import javax.validation.constraints.NotNull;

import org.optaplanner.core.api.domain.entity.PlanningEntity;
import org.optaplanner.core.api.domain.lookup.PlanningId;
import org.optaplanner.core.api.domain.variable.PlanningVariable;

@PlanningEntity
@Entity
public class Lesson {

    @PlanningId
    @Id @GeneratedValue(strategy = GenerationType.AUTO)
    @NotNull
    private Long id;

    @NotBlank
    private String subject;
    @NotBlank
    private String teacher;
    @NotBlank
    private String studentGroup;

    @PlanningVariable(valueRangeProviderRefs = "timeslotRange")
    @ManyToOne
    private Timeslot timeslot;

    @PlanningVariable(valueRangeProviderRefs = "roomRange")
    @ManyToOne
    private Room room;

    private Lesson() {
    }

    public Lesson(String subject, String teacher, String studentGroup) {
        this.subject = subject.trim();
        this.teacher = teacher.trim();
        this.studentGroup = studentGroup.trim();
    }

    public Lesson(long id, String subject, String teacher, String studentGroup, Room room, Timeslot timeslot) {
        this(subject, teacher, studentGroup);
        this.id = id;
        this.room = room;
        this.timeslot = timeslot;
    }

    @Override
    public String toString() {
        return subject + "(" + id + ")";
    }

    // ************************************************************************
    // Getters and setters
    // ************************************************************************

    public Long getId() {
        return id;
    }

    public String getSubject() {
        return subject;
    }

    public String getTeacher() {
        return teacher;
    }

    public String getStudentGroup() {
        return studentGroup;
    }

    public Timeslot getTimeslot() {
        return timeslot;
    }

    public void setTimeslot(Timeslot timeslot) {
        this.timeslot = timeslot;
    }

    public Room getRoom() {
        return room;
    }

    public void setRoom(Room room) {
        this.room = room;
    }

}
