== Regular User Likes a Story === Actor: **Regular User** A regular user likes a published story on the platform, and the writer receives a notification about it. **1.** The regular user browses the platform and opens a published story. **2.** The system displays the story details along with the current like count. {{{#!sql SELECT s.story_id, s.short_description, COUNT(l.user_id) AS total_likes FROM STORY s LEFT JOIN LIKES l ON s.story_id = l.story_id WHERE s.story_id = 1 GROUP BY s.story_id; }}} **3.** The user clicks the "Like" button on the story. **4.** The system checks if the user has already liked the story to prevent duplicates. {{{#!sql SELECT * FROM LIKES WHERE user_id = 4 AND story_id = 1; }}} **5.** The system inserts a new like record. {{{#!sql INSERT INTO LIKES (user_id, story_id, created_at) VALUES (4, 1, CURRENT_TIMESTAMP); }}} **6.** The system creates a notification for the writer. {{{#!sql INSERT INTO NOTIFICATION (content, is_read, created_at) VALUES ('Sara liked your story "The Chronicles of Eldoria"', FALSE, CURRENT_TIMESTAMP); }}} **7.** The system creates a notification for the writer. {{{#!sql INSERT INTO CONTENT_TYPE (notification_id, content_type) VALUES (1, 'like'); }}} **8.** The system creates a notification for the writer. {{{#!sql INSERT INTO NOTIFY (user_id, story_id, notification_id) VALUES (2, 1, 1); }}} **9.** The system updates the like count displayed on the story page.