The TemaTest package contains:

• an App class - manages commands from the command line and returns a validator;
• the Likeable interface - provides functionality to like and unlike;
• a JsonHandler class - manipulates JSON files;
• a Validator class - represents a response;
• a User class - manages users and their interactions;
• a Post class - manages posts and implements the Likeable interface;
• a Comment class - manages comments and implements the Likeable interface.

• JSON files for storing data about users, posts, and comments;
• Upon execution, it loads the data from the specified JSON files for users, posts, and comments.
• Accesses and modifies this data based on the command received from the command line, then updates the corresponding JSON files with the modified data.

• getParam: returns the content between two apostrophes;
• replaceWithSingle: replaces double quotes with single quotes in a string of characters and places a space before the open square bracket;
• wrapIntegersInQuotes: this method wraps all integers in a JSON string with single quotes.

The Likeable interface provides two methods:

• like: Allows the user to like an element;
• unlike: Allows the user to unlike an element.

The JsonHandler class contains the following methods:

• Converts a JSON file to an ArrayList of objects of the specified type.
• Parameters:
  • filePath: The path to the JSON file;
  • clazz: The type of object to convert from JSON.

• Serializes a specific object into a JSON string.
• Parameters:
  • object: The object to be serialized into JSON.

• Writes a JSON string to a file.
• Parameters:
  • text: The JSON string to be written to the file;
  • filePath: The path to the file to write to.

The Validator class has the following attributes:

• status: A string to indicate the validation status;
• message: An object containing a message associated with the result.

This class returns the validation results of the commands received within the application and provides the ability to directly transform it into a JSON object.

• addCreatedPost: Adds a post ID created by the user;
• updateNumberOfFollowers: Updates the number of followers for the user;
• deletePost: Deletes a post with a specific ID;
• checkValidPost: Checks if the user created the post with the specified ID;
• checkValidUserFollow: Checks if the user can follow a user with a certain username;
• checkValidUserUnfollow: Checks if the user can unfollow a user with a certain username;
• follow: Follows a specified user by username;
• unfollow: Unfollows a specified user by username;
• addComment: Adds a comment to a specified post;
• deleteComment: Deletes a comment with a specific ID;
• checkValidComment: Checks if the user created the comment with the specified ID;
• alreadyLikedPost: Checks if the user has already liked the post with the specified ID;
• alreadyLikedComment: Checks if the user has already liked the comment with the specified ID;
• getMostFollowedUsers: Returns the top 5 most followed users;
• getMostLikedUsers: Returns the top 5 most liked users.

• getters and setters;
• like and unlike;
• updateNumberOfLikes: Updates the number of likes for the post;
• updateNumberOfComments: Updates the number of comments for the post.

• top most liked or commented posts (getMostLikedPosts, getMostCommentedPosts);
• posts of a specific followed user or followed users (getUserPosts, getFollowingPosts);
• getPostDetails: Returns details about a specific post, including associated comments.

• getters and setters;
• like and unlike.