/**
 * 课程实体类
 * 遵循单一职责原则，表示培训课程的基本信息
 */
package com.employeetraining.course;

import java.util.Objects;

public class Course {
    private String courseId;
    private String title;
    private String description;
    private int durationHours;
    private String instructor;
    private String category;
    private boolean isRequired;
    
    public Course() {
    }
    
    public Course(String courseId, String title, String description, int durationHours, 
                 String instructor, String category, boolean isRequired) {
        this.courseId = courseId;
        this.title = title;
        this.description = description;
        this.durationHours = durationHours;
        this.instructor = instructor;
        this.category = category;
        this.isRequired = isRequired;
    }
    
    // Getters and Setters
    public String getCourseId() {
        return courseId;
    }
    
    public void setCourseId(String courseId) {
        this.courseId = courseId;
    }
    
    public String getTitle() {
        return title;
    }
    
    public void setTitle(String title) {
        this.title = title;
    }
    
    public String getDescription() {
        return description;
    }
    
    public void setDescription(String description) {
        this.description = description;
    }
    
    public int getDurationHours() {
        return durationHours;
    }
    
    public void setDurationHours(int durationHours) {
        this.durationHours = durationHours;
    }
    
    public String getInstructor() {
        return instructor;
    }
    
    public void setInstructor(String instructor) {
        this.instructor = instructor;
    }
    
    public String getCategory() {
        return category;
    }
    
    public void setCategory(String category) {
        this.category = category;
    }
    
    public boolean isRequired() {
        return isRequired;
    }
    
    public void setRequired(boolean required) {
        isRequired = required;
    }
    
    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;
        Course course = (Course) o;
        return Objects.equals(courseId, course.courseId);
    }
    
    @Override
    public int hashCode() {
        return Objects.hash(courseId);
    }
    
    @Override
    public String toString() {
        return "Course{" +
                "courseId='" + courseId + '\'' +
                ", title='" + title + '\'' +
                ", category='" + category + '\'' +
                ", duration=" + durationHours + "h" +
                ", required=" + isRequired +
                '}';
    }
}