Initial commit.

backend/infrastructure/Cargo.toml

@@ -0,0 +1,20 @@
+[package]
+name = "lumiere-infrastructure"
+version = "1.0.0"
+edition = "2024"
+
+[lib]
+name = "surveillant_systeme_infrastructure"
+path = "src/lib.rs"
+
+[dependencies]
+lumiere-domain = { path = "../domain" }
+
+chrono = "0.4.44"
+diesel = { version = "2.1.0", features = ["sqlite", "returning_clauses_for_sqlite_3_35"] }
+diesel_migrations = "2.1.0"
+log = "0.4.29"
+rand = "0.10.1"
+rusqlite = { version = "0.39.0", features = ["bundled"] }
+sysinfo = "0.39.1"
+uuid = { version = "1.23.1", features = ["v4"] }

backend/infrastructure/src/common/database_connection.rs

@@ -0,0 +1,34 @@
+use rusqlite::Connection as RusqliteConnection;
+use std::env;
+use std::path::Path;
+use diesel::{Connection, SqliteConnection};
+
+pub struct DatabaseConnection {
+    pub connection: RusqliteConnection,
+    pub diesel_connection: SqliteConnection,
+    pub database_has_been_created: bool,
+}
+
+impl DatabaseConnection {
+    pub fn init() -> Self {
+        let sqlite_database_name = env::var("SQLITE_DATABASE_NAME").expect("SQLITE_DATABASE_NAME must be set.");
+
+        let database_existed_before_connection_initialisation = does_database_exist(&sqlite_database_name);
+
+        let connection = RusqliteConnection::open(sqlite_database_name.clone())
+            .expect("Unable to connect to SQLite database…");
+
+        let diesel_connection = SqliteConnection::establish(&sqlite_database_name.clone())
+            .unwrap_or_else(|_| panic!("Error connecting to {}", sqlite_database_name.clone()));
+
+        Self {
+            connection,
+            diesel_connection,
+            database_has_been_created: !database_existed_before_connection_initialisation
+        }
+    }
+}
+
+fn does_database_exist(database_name: &String) -> bool {
+    Path::new(database_name).exists()
+}

backend/infrastructure/src/common/database_initialisation.rs

@@ -0,0 +1,30 @@
+use std::sync::{Arc, Mutex};
+use rusqlite::{Connection, Error};
+
+pub fn initialise_database_tables(connection: &Arc<Mutex<Connection>>) -> Result<(), Error> {
+    connection.lock()
+        .unwrap()
+        .execute_batch(
+            "
+            BEGIN;
+            CREATE TABLE IF NOT EXISTS configuration (
+                    id TEXT PRIMARY KEY,
+                    initialisation_code VARCHAR
+            );
+            CREATE TABLE IF NOT EXISTS system_resources (
+                id TEXT PRIMARY KEY,
+                datetime INTEGER NOT NULL,
+                cpu_usage INTEGER NOT NULL,
+                total_memory INTEGER NOT NULL,
+                used_memory INTEGER NOT NULL
+            );
+            CREATE TABLE IF NOT EXISTS \"user\" (
+                id TEXT PRIMARY KEY,
+                username VARCHAR NOT NULL,
+                encrypted_password VARCHAR NOT NULL
+            );
+            COMMIT;
+            "
+        )?;
+    Ok(())
+}

backend/infrastructure/src/common/mod.rs

@@ -0,0 +1,2 @@
+pub mod database_connection;
+pub mod database_initialisation;

backend/infrastructure/src/configuration/adapter.rs

@@ -0,0 +1,46 @@
+use std::io::{Error, ErrorKind};
+use surveillant_systeme_domain::configuration::port::ConfigurationPort;
+use crate::configuration::repository::ConfigurationSqliteRepository;
+
+#[derive(Clone)]
+pub struct ConfigurationSqliteAdapter {
+    repository: ConfigurationSqliteRepository
+}
+
+impl ConfigurationSqliteAdapter {
+    pub fn new(repository: ConfigurationSqliteRepository) -> Self {
+        Self {
+            repository
+        }
+    }
+}
+
+impl ConfigurationPort for ConfigurationSqliteAdapter {
+    fn get_initialisation_code(&self) -> Result<Option<String>, Error> {
+        self.repository.get_initialisation_code()
+            .map_err(|error| Error::new(
+                ErrorKind::Other,
+                format!("Unable to retrieve the initialisation code… Cause: {}", error)
+            ))
+    }
+
+    fn save(&self, initialisation_code: String) -> Result<(), Error> {
+        self.repository.save(initialisation_code)
+            .map_err(|error| Error::new(
+                ErrorKind::Other,
+                format!("Unable to save the initialisation code… Cause: {}", error)
+            ))
+    }
+
+    fn erase_initialisation_code(&self) -> Result<(), Error> {
+        self.repository.erase_initialisation_code()
+            .map_err(|error| Error::new(
+                ErrorKind::Other,
+                format!("Unable to erase the initialisation code… Cause: {}", error)
+            ))
+    }
+
+    fn clone_box(&self) -> Box<dyn ConfigurationPort> {
+        Box::new(self.clone())
+    }
+}

backend/infrastructure/src/configuration/mod.rs

@@ -0,0 +1,2 @@
+pub mod adapter;
+pub mod repository;

backend/infrastructure/src/configuration/repository.rs

@@ -0,0 +1,75 @@
+use std::sync::{Arc, Mutex, MutexGuard};
+use rusqlite::{Connection, Error};
+
+const CONFIGURATION_ID: &'static str = "1";
+
+#[derive(Clone)]
+pub struct ConfigurationSqliteRepository {
+    pub database_connection: Arc<Mutex<Connection>>
+}
+
+impl ConfigurationSqliteRepository {
+    pub fn new(database_connection: Arc<Mutex<Connection>>) -> Self {
+        Self { database_connection }
+    }
+
+    fn get_connection(&self) -> MutexGuard<'_, Connection> {
+        self.database_connection.lock().unwrap()
+    }
+
+    pub fn create_table(&self) -> Result<(), Error> {
+        let connection = self.get_connection();
+        connection.execute(
+            "CREATE TABLE IF NOT EXISTS configuration (
+                id TEXT PRIMARY KEY,
+                initialisation_code VARCHAR
+            );",
+            []
+        )?;
+        Ok(())
+    }
+
+    pub fn get_initialisation_code(&self) -> Result<Option<String>, Error> {
+        let connection = self.get_connection();
+        let mut prepared_statement = connection.prepare(
+            "SELECT initialisation_code
+            FROM configuration
+            WHERE id = ?1;"
+        ).expect("Unable to prepare statement to get initialisation code…");
+
+        let mut rows = prepared_statement.query([CONFIGURATION_ID])
+            .expect("Unable to retrieve initialisation code…");
+
+        if let Some(row) = rows.next()? {
+            let initialisation_code = row.get(0)?;
+            Ok(initialisation_code)
+        } else {
+            Ok(None)
+        }
+    }
+
+    pub fn save(&self, initialisation_code: String) -> Result<(), Error> {
+        let connection = self.get_connection();
+        let mut prepared_statement = connection.prepare(
+            "INSERT INTO configuration (
+                id,
+                initialisation_code
+            ) VALUES (?1, ?2);"
+        ).expect("Unable to prepare statement for configuration saving…");
+
+        prepared_statement.execute(rusqlite::params![
+            CONFIGURATION_ID,
+            initialisation_code
+        ]).expect("Unable to insert configuration…");
+        Ok(())
+    }
+
+    pub fn erase_initialisation_code(&self) -> Result<(), Error> {
+        let connection = self.get_connection();
+        let mut prepared_statement = connection.prepare(
+            "UPDATE configuration SET initialisation_code = NULL WHERE id = ?1;"
+        ).expect("Unable to prepare statement to erase initialisation code…");
+        prepared_statement.execute(rusqlite::params![CONFIGURATION_ID]).expect("Unable to erase initialisation code…");
+        Ok(())
+    }
+}

backend/infrastructure/src/lib.rs

@@ -0,0 +1,4 @@
+pub mod common;
+pub mod configuration;
+pub mod schema;
+pub mod user;

backend/infrastructure/src/schema.rs

@@ -0,0 +1,21 @@
+use diesel::prelude::*;
+
+// Define the user table structure matching the current SQL schema
+table! {
+    user (id) {
+        id -> Text,
+        username -> Varchar,
+        encrypted_password -> Varchar,
+    }
+}
+
+// Add system_resources table definition
+table! {
+    system_resources (id) {
+        id -> Text,
+        datetime -> Integer,
+        cpu_usage -> Float,
+        total_memory -> BigInt,
+        used_memory -> BigInt,
+    }
+}

backend/infrastructure/src/user/adapter.rs

@@ -0,0 +1,88 @@
+use std::io::{Error, ErrorKind};
+use uuid::Uuid;
+use surveillant_systeme_domain::user::model::User;
+use surveillant_systeme_domain::user::port::UserPort;
+use crate::user::repository::UserSqliteRepository;
+
+#[derive(Clone)]
+pub struct UserSqliteAdapter {
+    pub repository: UserSqliteRepository
+}
+
+impl UserSqliteAdapter {
+    pub fn new(repository: UserSqliteRepository) -> Self {
+        Self {
+            repository
+        }
+    }
+}
+
+impl UserPort for UserSqliteAdapter {
+    fn get_by_id(&self, id: &Uuid) -> Result<Option<User>, Error> {
+        self.repository.get_by_id(id)
+            .map_err(|error| Error::new(
+                ErrorKind::Other,
+                format!("Unable to get the user by its id… Cause: {}", error)
+            ))
+    }
+
+    fn get_by_username(&self, username: &String) -> Result<Option<User>, Error> {
+        self.repository.get_by_username(username)
+            .map_err(|error| Error::new(
+                ErrorKind::Other,
+                format!("Unable to get the user by its username… Cause: {}", error)
+            ))
+    }
+
+    fn get_all(&self) -> Result<Vec<User>, Error> {
+        self.repository.get_all()
+            .map_err(|error| Error::new(
+                ErrorKind::Other,
+                format!("Unable to get all users… Cause: {}", error)
+            ))
+    }
+
+    fn count(&self) -> Result<u8, Error> {
+        self.repository.count()
+            .map_err(|error| Error::new(
+                ErrorKind::Other,
+                format!("Unable to count users… Cause: {}", error)
+            ))
+    }
+
+    fn exists_by_name(&self, username: &String) -> Result<bool, Error> {
+        self.repository.exists_by_name(username)
+            .map_err(|error| Error::new(
+                ErrorKind::Other,
+                format!("Unable to check if a user exists by its name… Cause: {}", error)
+            ))
+    }
+
+    fn insert(&self, user: &User) -> Result<(), Error> {
+        self.repository.insert(user)
+            .map_err(|error| Error::new(
+                ErrorKind::Other,
+                format!("Unable to insert the user… Cause: {}", error)
+            ))
+    }
+
+    fn update(&self, user: &User) -> Result<(), Error> {
+        self.repository.update(user)
+            .map_err(|error| Error::new(
+                ErrorKind::Other,
+                format!("Unable to update the user… Cause: {}", error)
+            ))
+    }
+
+    fn delete_by_id(&self, id: &Uuid) -> Result<(), Error> {
+        self.repository.delete_by_id(id)
+            .map_err(|error| Error::new(
+                ErrorKind::Other,
+                format!("Unable to delete the user by its id… Cause: {}", error)
+            ))
+    }
+
+    fn clone_box(&self) -> Box<dyn UserPort> {
+        Box::new(self.clone())
+    }
+}

backend/infrastructure/src/user/diesel_adapter.rs

@@ -0,0 +1,95 @@
+use std::io::{Error, ErrorKind};
+use uuid::Uuid;
+use surveillant_systeme_domain::user::model::User;
+use surveillant_systeme_domain::user::port::UserPort;
+use crate::user::diesel_repository::UserDieselRepository;
+
+#[derive(Clone)]
+pub struct UserDieselAdapter {
+    pub repository: UserDieselRepository
+}
+
+impl UserDieselAdapter {
+    pub fn new(repository: UserDieselRepository) -> Self {
+        Self {
+            repository
+        }
+    }
+}
+
+impl UserPort for UserDieselAdapter {
+    fn get_by_id(&self, id: &Uuid) -> Result<Option<User>, Error> {
+        match self.repository.get_by_id(id) {
+            Ok(option_user_entity) => Ok(option_user_entity.map(|user_entity| user_entity.to_domain())),
+            Err(diesel::result::Error::NotFound) => Ok(None),
+            Err(e) => Err(Error::new(
+                ErrorKind::Other,
+                format!("Unable to get the user by its id… Cause: {}", e)
+            )),
+        }
+    }
+
+    fn get_by_username(&self, username: &String) -> Result<Option<User>, Error> {
+        self.repository.get_by_username(username)
+            .map_err(|error| Error::new(
+                ErrorKind::Other,
+                format!("Unable to get the user by its username… Cause: {}", error)
+            ))
+            .map(|option_user_entity| option_user_entity.map(|user_entity| user_entity.to_domain()))
+    }
+
+    fn get_all(&self) -> Result<Vec<User>, Error> {
+        self.repository.get_all()
+            .map_err(|error| Error::new(
+                ErrorKind::Other,
+                format!("Unable to get all users… Cause: {}", error)
+            ))
+            .map(|user_entities| user_entities.into_iter().map(|user_entity| user_entity.to_domain()).collect())
+    }
+
+    fn count(&self) -> Result<u8, Error> {
+        self.repository.count()
+            .map_err(|error| Error::new(
+                ErrorKind::Other,
+                format!("Unable to count users… Cause: {}", error)
+            ))
+    }
+
+    fn exists_by_name(&self, username: &String) -> Result<bool, Error> {
+        self.repository.exists_by_name(username)
+            .map_err(|error| Error::new(
+                ErrorKind::Other,
+                format!("Unable to check if a user exists by its name… Cause: {}", error)
+            ))
+    }
+
+    fn insert(&self, user: &User) -> Result<(), Error> {
+        let user_entity = crate::user::model::UserEntity::from(user);
+        self.repository.insert(&user_entity)
+            .map_err(|error| Error::new(
+                ErrorKind::Other,
+                format!("Unable to insert the user… Cause: {}", error)
+            ))
+    }
+
+    fn update(&self, user: &User) -> Result<(), Error> {
+        let user_entity = crate::user::model::UserEntity::from(user);
+        self.repository.update(&user_entity)
+            .map_err(|error| Error::new(
+                ErrorKind::Other,
+                format!("Unable to update the user… Cause: {}", error)
+            ))
+    }
+
+    fn delete_by_id(&self, id: &Uuid) -> Result<(), Error> {
+        self.repository.delete_by_id(id)
+            .map_err(|error| Error::new(
+                ErrorKind::Other,
+                format!("Unable to delete the user by its id… Cause: {}", error)
+            ))
+    }
+
+    fn clone_box(&self) -> Box<dyn UserPort> {
+        Box::new(self.clone())
+    }
+}

backend/infrastructure/src/user/diesel_repository.rs

@@ -0,0 +1,115 @@
+use diesel::prelude::*;
+use diesel::sqlite::SqliteConnection;
+use std::sync::{Arc, Mutex};
+use uuid::Uuid;
+use super::model::UserEntity;
+
+#[derive(Clone)]
+pub struct UserDieselRepository {
+    pub database_connection: Arc<Mutex<SqliteConnection>>,
+}
+
+impl UserDieselRepository {
+    pub fn new(database_connection: Arc<Mutex<SqliteConnection>>) -> Self {
+        Self {
+            database_connection,
+        }
+    }
+
+    fn get_connection(&self) -> std::sync::MutexGuard<'_, SqliteConnection> {
+        self.database_connection.lock().unwrap()
+    }
+
+    pub fn create_table(&self) -> Result<(), diesel::result::Error> {
+        let mut connection = self.get_connection();
+        diesel::sql_query(
+            "CREATE TABLE IF NOT EXISTS \"user\" (
+                id TEXT PRIMARY KEY,
+                username VARCHAR NOT NULL,
+                encrypted_password VARCHAR NOT NULL
+            );"
+        ).execute(&mut *connection)?;
+        Ok(())
+    }
+
+    pub fn insert(&self, user: &UserEntity) -> Result<(), diesel::result::Error> {
+        let mut connection = self.get_connection();
+        
+        diesel::insert_into(crate::schema::user::table)
+            .values(user)
+            .execute(&mut *connection)?;
+        Ok(())
+    }
+
+    pub fn update(&self, user: &UserEntity) -> Result<(), diesel::result::Error> {
+        let mut connection = self.get_connection();
+        
+        diesel::update(crate::schema::user::table.find(&user.id.to_string()))
+            .set((crate::schema::user::username.eq(user.username.clone()),
+                  crate::schema::user::encrypted_password.eq(user.encrypted_password.clone())))
+            .execute(&mut *connection)?;
+        Ok(())
+    }
+
+    pub fn delete_by_id(&self, id: &Uuid) -> Result<(), diesel::result::Error> {
+        let mut connection = self.get_connection();
+        
+        diesel::delete(crate::schema::user::table.find(id.to_string()))
+            .execute(&mut *connection)?;
+        Ok(())
+    }
+
+    pub fn count(&self) -> Result<u8, diesel::result::Error> {
+        let mut connection = self.get_connection();
+        
+        let count: i64 = crate::schema::user::table.count().get_result(&mut *connection)?;
+        Ok(count as u8)
+    }
+
+    pub fn get_by_id(&self, id: &Uuid) -> Result<Option<UserEntity>, diesel::result::Error> {
+        let mut connection = self.get_connection();
+        
+        let result: Result<UserEntity, _> = crate::schema::user::table
+            .find(id.to_string())
+            .first(&mut *connection);
+        
+        match result {
+            Ok(user_diesel) => Ok(Some(user_diesel)),
+            Err(e) => Err(e),
+        }
+    }
+
+    pub fn exists_by_name(&self, username: &String) -> Result<bool, diesel::result::Error> {
+        let mut connection = self.get_connection();
+        
+        let count: i64 = crate::schema::user::table
+            .filter(crate::schema::user::username.eq(username))
+            .count()
+            .get_result(&mut *connection)?;
+        Ok(count > 0)
+    }
+
+    pub fn get_by_username(&self, username: &String) -> Result<Option<UserEntity>, diesel::result::Error> {
+        let mut connection = self.get_connection();
+        
+        let result: Result<UserEntity, _> = crate::schema::user::table
+            .filter(crate::schema::user::username.eq(username))
+            .first(&mut *connection);
+        
+        match result {
+            Ok(user_diesel) => Ok(Some(user_diesel)),
+            Err(diesel::result::Error::NotFound) => Ok(None),
+            Err(e) => Err(e),
+        }
+    }
+
+    pub fn get_all(&self) -> Result<Vec<UserEntity>, diesel::result::Error> {
+        let mut connection = self.get_connection();
+        
+        let users: Vec<UserEntity> = crate::schema::user::table
+            .order(crate::schema::user::username.asc())
+            .load(&mut *connection)?;
+        
+        Ok(users)
+    }
+}

backend/infrastructure/src/user/mod.rs

@@ -0,0 +1,5 @@
+pub mod adapter;
+pub mod diesel_adapter;
+pub mod diesel_repository;
+pub mod model;
+pub mod repository;

backend/infrastructure/src/user/model.rs

@@ -0,0 +1,31 @@
+use surveillant_systeme_domain::user::model::User;
+use diesel::prelude::*;
+use uuid::Uuid;
+
+#[derive(Queryable, Identifiable, Insertable, AsChangeset)]
+#[diesel(table_name = crate::schema::user)]
+pub struct UserEntity {
+    pub id: String,
+    pub username: String,
+    pub encrypted_password: String,
+}
+
+impl UserEntity {
+    pub fn to_domain(&self) -> User {
+        User {
+            id: Uuid::parse_str(&self.id).unwrap(),
+            username: self.username.clone(),
+            encrypted_password: self.encrypted_password.clone(),
+        }
+    }
+}
+
+impl From<&User> for UserEntity {
+    fn from(user: &User) -> Self {
+        UserEntity {
+            id: user.id.to_string(),
+            username: user.username.clone(),
+            encrypted_password: user.encrypted_password.clone(),
+        }
+    }
+}

backend/infrastructure/src/user/repository.rs

@@ -0,0 +1,184 @@
+use rusqlite::fallible_iterator::FallibleIterator;
+use rusqlite::{Connection, Error, Row};
+use std::sync::{Arc, Mutex, MutexGuard};
+use log::warn;
+use uuid::Uuid;
+use surveillant_systeme_domain::user::model::User;
+
+#[derive(Clone)]
+pub struct UserSqliteRepository {
+    pub database_connection: Arc<Mutex<Connection>>,
+}
+
+impl UserSqliteRepository {
+    pub fn new(database_connection: Arc<Mutex<Connection>>) -> Self {
+        Self {
+            database_connection,
+        }
+    }
+
+    fn get_connection(&self) -> MutexGuard<'_, Connection> {
+        self.database_connection.lock().unwrap()
+    }
+
+    pub fn create_table(&self) -> Result<(), Error> {
+        let connection = self.get_connection();
+        connection.execute(
+            "CREATE TABLE IF NOT EXISTS \"user\" (
+            id TEXT PRIMARY KEY,
+            username VARCHAR NOT NULL,
+            encrypted_password VARCHAR NOT NULL
+        );",
+            []
+        )?;
+        Ok(())
+    }
+
+    pub fn insert(&self, user: &User) -> rusqlite::Result<()> {
+        let database_connection = self.get_connection();
+
+        let mut prepared_statement = database_connection
+            .prepare(
+                "INSERT INTO \"user\" (
+                id,
+                username,
+                encrypted_password
+            ) VALUES (?1, ?2, ?3);",
+            )
+            .expect("Unable to prepare statement for user saving…");
+        prepared_statement.execute(rusqlite::params![
+            user.id.to_string(),
+            user.username,
+            user.encrypted_password
+        ]).expect("Unable to insert user.");
+        Ok(())
+    }
+
+    pub fn update(&self, user: &User) -> rusqlite::Result<()> {
+        let database_connection = self.get_connection();
+
+        let mut prepared_statement = database_connection
+            .prepare(
+                "UPDATE \"user\" SET
+                    username = ?1,
+                    encrypted_password = ?2
+                WHERE id = ?3;",
+            )
+            .expect("Unable to prepare statement for user saving…");
+        prepared_statement.execute(rusqlite::params![
+            user.username,
+            user.encrypted_password,
+            user.id.to_string()
+        ]).expect("Unable to update user.");
+        Ok(())
+    }
+
+    pub fn delete_by_id(&self, id: &Uuid) -> rusqlite::Result<()> {
+        let database_connection = self.get_connection();
+
+        let mut prepared_statement = database_connection
+            .prepare("DELETE FROM \"user\" WHERE id = ?1;")
+            .expect("Unable to prepare statement for user deletion…");
+        prepared_statement.execute(rusqlite::params![id.to_string()])
+            .expect("Unable to delete the user…");
+        Ok(())
+    }
+
+    pub fn count(&self) -> rusqlite::Result<u8> {
+        let database_connection = self.get_connection();
+
+        let mut prepared_statement = database_connection
+            .prepare("SELECT COUNT(1) FROM \"user\";")
+            .expect("Unable to prepare statement for user counting…");
+        let mut rows = prepared_statement.query([])?;
+
+        if let Some(row) = rows.next()? {
+            Ok(row.get(0)?)
+        } else {
+            Ok(0)
+        }
+    }
+
+    pub fn get_by_id(&self, id: &Uuid) -> rusqlite::Result<Option<User>> {
+        let database_connection = self.get_connection();
+
+        let mut prepared_statement = database_connection.prepare(
+            "SELECT
+                id,
+                username,
+                encrypted_password
+            FROM \"user\"\
+            WHERE id = ?1;"
+        )?;
+        let mut rows = prepared_statement.query([id.to_string()])?;
+
+        if let Some(row) = rows.next()? {
+            Ok(Some(Self::map_to_user(&row)?))
+        } else {
+            Ok(None)
+        }
+    }
+
+    pub fn exists_by_name(&self, username: &String) -> rusqlite::Result<bool> {
+        let database_connection = self.get_connection();
+
+        let mut prepared_statement = database_connection.prepare(
+            "SELECT EXISTS(
+                SELECT 1
+                FROM \"user\"
+                WHERE username = ?1\
+            );"
+        )?;
+        let mut rows = prepared_statement.query([username])?;
+
+        if let Some(row) = rows.next()? {
+            Ok(row.get(0)?)
+        } else {
+            warn!("No result for exists_by_name repository function.");
+            Ok(false)
+        }
+    }
+
+    pub fn get_by_username(&self, username: &String) -> rusqlite::Result<Option<User>> {
+        let database_connection = self.get_connection();
+
+        let mut prepared_statement = database_connection.prepare(
+            "SELECT
+                id,
+                username,
+                encrypted_password
+            FROM \"user\"\
+            WHERE username = ?1;"
+        )?;
+        let mut rows = prepared_statement.query([username])?;
+
+        if let Some(row) = rows.next()? {
+            Ok(Some(Self::map_to_user(&row)?))
+        } else {
+            Ok(None)
+        }
+    }
+
+    fn map_to_user(row: &Row) -> Result<User, Error> {
+        let id_text: String = row.get(0)?;
+        Ok(User {
+            id: Uuid::parse_str(&id_text).unwrap(),
+            username: row.get(1)?,
+            encrypted_password: row.get(2)?,
+        })
+    }
+
+    pub fn get_all(&self) -> Result<Vec<User>, Error> {
+        let database_connection = self.get_connection();
+
+        let mut prepared_statement = database_connection.prepare(
+            "SELECT
+                id,
+                username,
+                encrypted_password
+            FROM \"user\"",
+        )?;
+        let rows = prepared_statement.query([])?;
+        rows.map(UserSqliteRepository::map_to_user).collect::<Vec<User>>()
+    }
+}