db/heromodels/examples/basic_user_example.rs

use heromodels::db::{Collection, Db};
use heromodels::models::userexample::user::user_index::{is_active, username};
use heromodels::models::{Comment, User};
use heromodels_core::Model;

// Helper function to print user details
fn print_user_details(user: &User) {
    println!("\n--- User Details ---");
    println!("ID: {}", user.get_id());
    println!("Username: {}", user.username);
    println!("Email: {}", user.email);
    println!("Full Name: {}", user.full_name);
    println!("Active: {}", user.is_active);
    println!("Created At: {}", user.base_data.created_at);
    println!("Modified At: {}", user.base_data.modified_at);
    println!("Comments: {:?}", user.base_data.comments);
}

// Helper function to print comment details
fn print_comment_details(comment: &Comment) {
    println!("\n--- Comment Details ---");
    println!("ID: {}", comment.get_id());
    println!("User ID: {}", comment.user_id);
    println!("Content: {}", comment.content);
    println!("Created At: {}", comment.base_data.created_at);
    println!("Modified At: {}", comment.base_data.modified_at);
}

fn main() {
    // Create a new DB instance in /tmp/ourdb, and reset before every run
    let db = heromodels::db::hero::OurDB::new("/tmp/ourdb", true).expect("Can create DB");

    println!("Hero Models - Basic Usage Example");
    println!("================================");

    // Create users with different ID configurations

    // User 1: With explicit ID
    let user1 = User::new(Some(1))
        .username("johndoe")
        .email("john.doe@example.com")
        .full_name("John Doe")
        .is_active(false)
        .build();

    // User 2: With auto-generated ID
    let user2 = User::new(None)
        .username("janesmith")
        .email("jane.smith@example.com")
        .full_name("Jane Smith")
        .is_active(true)
        .build();

    // User 3: With explicit ID
    let user3 = User::new(Some(3))
        .username("willism")
        .email("willis.masters@example.com")
        .full_name("Willis Masters")
        .is_active(true)
        .build();

    // User 4: With explicit ID
    let user4 = User::new(Some(4))
        .username("carrols")
        .email("carrol.smith@example.com")
        .full_name("Carrol Smith")
        .is_active(false)
        .build();

    // Save all users to database
    db.collection().expect("can open user collection").set(&user1).expect("can set user");
    db.collection().expect("can open user collection").set(&user2).expect("can set user");
    db.collection().expect("can open user collection").set(&user3).expect("can set user");
    db.collection().expect("can open user collection").set(&user4).expect("can set user");

    // Retrieve all users from database
    let db_user1 = db.collection::<User>().expect("can open user collection")
        .get_by_id(user1.get_id()).expect("can load user").expect("user should exist");
    let db_user2 = db.collection::<User>().expect("can open user collection")
        .get_by_id(user2.get_id()).expect("can load user").expect("user should exist");
    let db_user3 = db.collection::<User>().expect("can open user collection")
        .get_by_id(user3.get_id()).expect("can load user").expect("user should exist");
    let db_user4 = db.collection::<User>().expect("can open user collection")
        .get_by_id(user4.get_id()).expect("can load user").expect("user should exist");

    // Print all users retrieved from database
    println!("\n--- Users Retrieved from Database ---");
    println!("\n1. User with explicit ID (1):");
    print_user_details(&db_user1);

    println!("\n2. User with auto-generated ID:");
    print_user_details(&db_user2);

    println!("\n3. User with explicit ID (3):");
    print_user_details(&db_user3);

    println!("\n4. User with explicit ID (4):");
    print_user_details(&db_user4);

    // Demonstrate different ways to retrieve users from the database

    // 1. Retrieve by username index
    println!("\n--- Retrieving Users by Different Methods ---");
    println!("\n1. By Username Index:");
    let stored_users = db
        .collection::<User>()
        .expect("can open user collection")
        .get::<username, _>("johndoe")
        .expect("can load stored user");

    assert_eq!(stored_users.len(), 1);
    print_user_details(&stored_users[0]);

    // 2. Retrieve by active status
    println!("\n2. By Active Status (Active = true):");
    let active_users = db
        .collection::<User>()
        .expect("can open user collection")
        .get::<is_active, _>(&true)
        .expect("can load stored users");

    assert_eq!(active_users.len(), 2);
    for (i, active_user) in active_users.iter().enumerate() {
        print_user_details(active_user);
    }

    // 3. Delete a user and show the updated results
    println!("\n3. After Deleting a User:");
    db.collection::<User>()
        .expect("can open user collection")
        .delete_by_id(active_users[0].get_id())
        .expect("can delete existing user");

    // Show remaining active users
    let active_users = db
        .collection::<User>()
        .expect("can open user collection")
        .get::<is_active, _>(&true)
        .expect("can load stored users");

    println!("   a. Remaining Active Users:");
    assert_eq!(active_users.len(), 1);
    for (i, active_user) in active_users.iter().enumerate() {
        print_user_details(active_user);
    }

    // Show inactive users
    let inactive_users = db
        .collection::<User>()
        .expect("can open user collection")
        .get::<is_active, _>(&false)
        .expect("can load stored users");

    println!("   b. Inactive Users:");
    assert_eq!(inactive_users.len(), 2);
    for (i, inactive_user) in inactive_users.iter().enumerate() {
        print_user_details(inactive_user);
    }

    println!("\n--- User Model Information ---");
    println!("User DB Prefix: {}", User::db_prefix());

    // Demonstrate comment creation and association with a user
    println!("\n--- Working with Comments ---");

    // 1. Create and save a comment
    println!("\n1. Creating a Comment:");
    let comment = Comment::new(None)
        .user_id(db_user1.get_id()) // commenter's user ID
        .content("This is a comment on the user")
        .build();

    db.collection()
        .expect("can open comment collection")
        .set(&comment)
        .expect("can set comment");

    // 2. Retrieve the comment from database
    let db_comment = db
        .collection::<Comment>()
        .expect("can open comment collection")
        .get_by_id(comment.get_id())
        .expect("can load comment")
        .expect("comment should exist");

    println!("   a. Comment Retrieved from Database:");
    print_comment_details(&db_comment);

    // 3. Associate the comment with a user
    println!("\n2. Associating Comment with User:");
    let mut updated_user = db_user1.clone();
    updated_user.base_data.add_comment(db_comment.get_id());

    db.collection::<User>()
        .expect("can open user collection")
        .set(&updated_user)
        .expect("can set updated user");

    // 4. Retrieve the updated user
    let user_with_comment = db
        .collection::<User>()
        .expect("can open user collection")
        .get_by_id(updated_user.get_id())
        .expect("can load user")
        .expect("user should exist");

    println!("   a. User with Associated Comment:");
    print_user_details(&user_with_comment);

    println!("\n--- Model Information ---");
    println!("User DB Prefix: {}", User::db_prefix());
    println!("Comment DB Prefix: {}", Comment::db_prefix());
}