Separate ports & adaptors

3/coursework/src/database/init/init.sql

@@ -70,7 +70,7 @@ INSERT INTO DependencyTypes (id, name) VALUES
 -- Track which dependencies a package has
 CREATE TABLE PackageDependencies ( id INT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
     arch        VARCHAR(63)  NULL,
-    condition   VARCHAR(255) NULL,
+    requirement VARCHAR(255) NULL,
     description VARCHAR(127) NULL,
 
     package INT UNSIGNED NOT NULL,
@@ -93,7 +93,7 @@ INSERT INTO RelationTypes (id, name) VALUES
 -- Track which conflicts, provides and replaces a package has
 CREATE TABLE PackageRelations ( id INT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
     arch        VARCHAR(63) NULL,
-    condition   VARCHAR(255) NULL,
+    requiremen  VARCHAR(255) NULL,
 
     package INT UNSIGNED NOT NULL,
     relation_type TINYINT UNSIGNED NOT NULL,

3/coursework/src/database/src/adapter.rs

@@ -0,0 +1 @@
+pub mod mysql;

3/coursework/src/database/src/adapter/mysql.rs

@@ -0,0 +1,2 @@
+pub mod user;
+pub mod base;

3/coursework/src/database/src/adapter/mysql/base.rs

@@ -0,0 +1,98 @@
+pub use crate::port::base::*;
+
+use sqlx::{Executor, MySql};
+
+pub struct BaseAdapter;
+
+struct DatabaseBase {
+    id: u64,
+    name: String,
+    description: Option<String>,
+    created_at: DateTime<Utc>,
+    updated_at: DateTime<Utc>,
+}
+impl From<DatabaseBase> for Base {
+    fn from(value: DatabaseBase) -> Self {
+        Self {
+            id: Id(value.id),
+            name: value.name.into(),
+            description: value.description.into(),
+            created_at: value.created_at,
+            updated_at: value.updated_at,
+        }
+    }
+}
+
+impl<E> BaseRepository<E> for BaseAdapter where for<'a> &'a E: Executor<'a, Database = MySql> {}
+impl<E> crate::port::CRUD<E> for BaseAdapter
+where
+    for<'a> &'a E: Executor<'a, Database = MySql>,
+{
+    type Create = New;
+    type Read = Id;
+    type Update = Field;
+    type Delete = Id;
+    type Existing = Base;
+    type Id = Id;
+
+    async fn create(connection: &mut E, data: Self::Create) -> Result<Self::Id> {
+        Ok(Id(sqlx::query!(
+            "INSERT INTO PackageBases (name, description) VALUES (?, ?)",
+            data.name.0,
+            data.description.0,
+        )
+        .execute(&*connection)
+        .await?
+        .last_insert_id()))
+    }
+
+    async fn read(connection: &E, data: Self::Read) -> Result<Option<Self::Existing>> {
+        Ok(sqlx::query_as!(
+            DatabaseBase,
+            "SELECT * FROM PackageBases WHERE id = ?",
+            data.0
+        )
+        .fetch_optional(connection)
+        .await?
+        .map(Into::into))
+    }
+
+    async fn update(connection: &mut E, id: Self::Id, data: Self::Update) -> Result {
+        match data {
+            Field::Name(valid) => {
+                sqlx::query!(
+                    "UPDATE PackageBases SET name = ? WHERE id = ?",
+                    valid.0,
+                    id.0
+                )
+            }
+            Field::Description(valid) => {
+                sqlx::query!(
+                    "UPDATE PackageBases SET description = ? WHERE id = ?",
+                    valid.0,
+                    id.0
+                )
+            }
+            Field::CreatedAt(date_time) => sqlx::query!(
+                "UPDATE PackageBases SET created_at = ? WHERE id = ?",
+                date_time,
+                id.0
+            ),
+            Field::UpdatedAt(date_time) => sqlx::query!(
+                "UPDATE PackageBases SET updated_at = ? WHERE id = ?",
+                date_time,
+                id.0
+            ),
+        }
+        .execute(&*connection)
+        .await?;
+        Ok(())
+    }
+
+    async fn delete(connection: &mut E, data: Self::Delete) -> Result {
+        sqlx::query!("DELETE FROM PackageBases WHERE id = ?", data.0)
+            .execute(&*connection)
+            .await?;
+        Ok(())
+    }
+}

3/coursework/src/database/src/adapter/mysql/user.rs

@@ -0,0 +1,125 @@
+pub use crate::port::user::*;
+
+use sqlx::{Executor, MySql};
+
+pub struct UserAdapter;
+
+struct DatabaseUser {
+    id: u64,
+    name: String,
+    email: String,
+    password: String,
+    last_used: Option<DateTime<Utc>>,
+    created_at: DateTime<Utc>,
+    updated_at: DateTime<Utc>,
+}
+
+impl From<DatabaseUser> for User {
+    fn from(value: DatabaseUser) -> Self {
+        Self {
+            id: Id(value.id),
+            name: value.name.into(),
+            email: value.email.into(),
+            password: value.password.into(),
+            last_used: value.last_used,
+            created_at: value.created_at,
+            updated_at: value.updated_at,
+        }
+    }
+}
+
+impl<E> UserRepository<E> for UserAdapter where for<'a> &'a E: Executor<'a, Database = MySql> {}
+impl<E> crate::port::CRUD<E> for UserAdapter
+where
+    for<'a> &'a E: Executor<'a, Database = MySql>,
+{
+    type Create = New;
+    type Read = Unique;
+    type Update = Field;
+    type Delete = Unique;
+    type Existing = User;
+    type Id = Id;
+
+    async fn create(connection: &mut E, data: Self::Create) -> Result<Self::Id> {
+        Ok(Id(sqlx::query!(
+            "INSERT INTO Users (name, email, password, last_used) VALUES (?, ?, ?, ?)",
+            data.name.0,
+            data.email.0,
+            data.password.0,
+            data.last_used,
+        )
+        .execute(&*connection)
+        .await?
+        .last_insert_id()))
+    }
+
+    async fn read(connection: &E, data: Self::Read) -> Result<Option<Self::Existing>> {
+        Ok(match data {
+            Unique::Id(id) => {
+                sqlx::query_as!(DatabaseUser, "SELECT * FROM Users WHERE id = ?", id.0)
+                    .fetch_optional(connection)
+                    .await
+            }
+            Unique::Name(name) => {
+                sqlx::query_as!(DatabaseUser, "SELECT * FROM Users WHERE name = ?", name.0)
+                    .fetch_optional(connection)
+                    .await
+            }
+            Unique::Email(email) => {
+                sqlx::query_as!(DatabaseUser, "SELECT * FROM Users WHERE email = ?", email.0)
+                    .fetch_optional(connection)
+                    .await
+            }
+        }?
+        .map(Into::into))
+    }
+
+    async fn update(connection: &mut E, id: Self::Id, data: Self::Update) -> Result {
+        match data {
+            Field::Name(valid) => {
+                sqlx::query!("UPDATE Users SET name = ? WHERE id = ?", valid.0, id.0)
+            }
+            Field::Email(valid) => {
+                sqlx::query!("UPDATE Users SET email = ? WHERE id = ?", valid.0, id.0)
+            }
+            Field::Password(valid) => {
+                sqlx::query!("UPDATE Users SET password = ? WHERE id = ?", valid.0, id.0)
+            }
+            Field::LastUsed(date_time) => {
+                sqlx::query!(
+                    "UPDATE Users SET last_used = ? WHERE id = ?",
+                    date_time,
+                    id.0
+                )
+            }
+            Field::CreatedAt(date_time) => sqlx::query!(
+                "UPDATE Users SET created_at = ? WHERE id = ?",
+                date_time,
+                id.0
+            ),
+            Field::UpdatedAt(date_time) => sqlx::query!(
+                "UPDATE Users SET updated_at = ? WHERE id = ?",
+                date_time,
+                id.0
+            ),
+        }
+        .execute(&*connection)
+        .await?;
+        Ok(())
+    }
+
+    async fn delete(connection: &mut E, data: Self::Delete) -> Result {
+        match data {
+            Unique::Id(id) => sqlx::query!("DELETE FROM Users WHERE id = ?", id.0),
+            Unique::Name(name) => {
+                sqlx::query!("DELETE FROM Users WHERE name = ?", name.0)
+            }
+            Unique::Email(email) => {
+                sqlx::query!("DELETE FROM Users WHERE email = ?", email.0)
+            }
+        }
+        .execute(&*connection)
+        .await?;
+        Ok(())
+    }
+}

3/coursework/src/database/src/lib.rs

@@ -13,4 +13,5 @@ impl<T: garde::Validate> IntoValid for T {}
 
 pub mod atomic;
 pub mod connect;
-pub mod repository;
+pub mod port;
+pub mod adapter;

3/coursework/src/database/src/main.rs

@@ -0,0 +1,18 @@
+use garde::{Valid, Validate};
+
+#[derive(Validate)]
+enum Data {
+    Struct {
+        #[garde(range(min=-10, max=10))]
+        field: i32,
+    },
+    Tuple(#[garde(ascii)] String),
+}
+
+fn main() {
+    let data = Data::Struct { field: 100 };
+    let data = Data::Tuple("🧱".into());
+    if let Err(e) = data.validate() {
+        println!("invalid data: {e}");
+    }
+}

3/coursework/src/database/src/port.rs

@@ -0,0 +1,21 @@
+pub type Result<T = ()> = std::result::Result<T, Box<dyn std::error::Error>>;
+
+#[allow(async_fn_in_trait)]
+pub trait CRUD<C> {
+    type Create;
+    type Read;
+    type Update;
+    type Delete;
+    type Existing;
+    type Id;
+
+    async fn create(connection: &mut C, data: Self::Create) -> Result<Self::Id>;
+    async fn read(connection: &C, data: Self::Read) -> Result<Option<Self::Existing>>;
+    async fn update(connection: &mut C, id: Self::Id, data: Self::Update) -> Result;
+    async fn delete(connection: &mut C, data: Self::Delete) -> Result;
+}
+
+pub mod user;
+pub mod base;
+// pub mod package;
+// pub mod session;

3/coursework/src/database/src/port/base.rs

@@ -0,0 +1,79 @@
+pub use super::{CRUD, Result};
+
+pub use chrono::{DateTime, Utc};
+use derive_more::{Deref, From, Into};
+use garde::{Valid, Validate};
+
+#[allow(async_fn_in_trait)]
+pub trait BaseRepository<C>:
+    super::CRUD<
+        C,
+        Create = New,
+        Read = Id,
+        Update = Field,
+        Delete = Id,
+        Existing = Base,
+        Id = Id,
+    >
+{
+    async fn update_base(connection: &mut C, base: &mut Base, data: Self::Update) -> Result {
+        Self::update(connection, base.id, data.clone()).await?;
+        match data {
+            Field::Name(valid) => base.name = valid.into_inner(),
+            Field::Description(valid) => base.description = valid.into_inner(),
+            Field::CreatedAt(date_time) => base.created_at = date_time,
+            Field::UpdatedAt(date_time) => base.updated_at = date_time,
+        }
+        Ok(())
+    }
+}
+
+#[derive(Deref, Into, Clone, Copy)]
+pub struct Id(pub(crate) u64);
+
+#[derive(Validate, Deref, From, Clone)]
+#[garde(transparent)]
+pub struct Name(#[garde(alphanumeric, length(min = 2, max = 127))] pub String);
+
+#[derive(Validate, Deref, From, Clone)]
+#[garde(transparent)]
+pub struct Description(#[garde(length(max = 510))] pub Option<String>);
+
+pub struct New {
+    pub name: Name,
+    pub description: Description,
+}
+
+#[derive(Clone)]
+pub enum Field {
+    Name(Valid<Name>),
+    Description(Valid<Description>),
+    CreatedAt(DateTime<Utc>),
+    UpdatedAt(DateTime<Utc>),
+}
+
+pub struct Base {
+    pub(crate) id: Id,
+    pub(crate) name: Name,
+    pub(crate) description: Description,
+    pub(crate) created_at: DateTime<Utc>,
+    pub(crate) updated_at: DateTime<Utc>,
+}
+
+impl Base {
+    pub fn id(&self) -> Id {
+        self.id
+    }
+    pub fn name(&self) -> &Name {
+        &self.name
+    }
+    pub fn description(&self) -> &Description {
+        &self.description
+    }
+    pub fn created_at(&self) -> DateTime<Utc> {
+        self.created_at
+    }
+    pub fn updated_at(&self) -> DateTime<Utc> {
+        self.updated_at
+    }
+}

3/coursework/src/database/src/port/package.rs

@@ -0,0 +1,168 @@
+use super::{Result, package_base::Base};
+
+use derive_more::{Deref, From, Into};
+use garde::{Valid, Validate};
+use sqlx::{Executor, MySql};
+
+// pub enum GetBy
+
+#[allow(async_fn_in_trait)]
+pub trait PackageRepository<C> {
+    async fn get_by_id(connection: &C, id: Id) -> Result<Option<Package>>;
+    async fn get_by_name(connection: &C, name: &Valid<Name>) -> Result<Option<Package>>;
+
+    async fn change_name(connection: &mut C, package: &mut Package, name: Valid<Name>) -> Result;
+    async fn change_base(connection: &mut C, package: &mut Package, base: &Base) -> Result;
+    async fn change_version(connection: &mut C, package: &mut Package, version: Valid<Version>) -> Result;
+
+    async fn create(connection: &mut C, data: Valid<PackageData>) -> Result<Package>;
+}
+
+#[derive(Deref, Into, Clone, Copy)]
+pub struct Id(u32);
+
+pub type BaseId = super::package_base::Id;
+
+#[derive(Validate, Deref)]
+#[garde(transparent)]
+pub struct Name(#[garde(alphanumeric, length(min = 2, max = 127))] pub String);
+
+#[derive(Validate, Deref)]
+#[garde(transparent)]
+pub struct Version(#[garde(alphanumeric, length(min = 1, max = 127))] pub String);
+
+#[derive(Validate, Deref)]
+#[garde(transparent)]
+pub struct Description(#[garde(ascii, length(max = 255))] pub Option<String>);
+
+#[derive(Validate)]
+#[garde(transparent)]
+pub struct URL(#[garde(url, length(max = 510))] pub Option<String>);
+
+#[derive(Validate)]
+pub struct PackageData {
+    #[garde(dive)]
+    pub name: Name,
+    #[garde(dive)]
+    pub description: Description,
+}
+
+#[derive(Deref)]
+pub struct Package {
+    id: Id,
+    #[deref]
+    data: PackageData,
+}
+impl Package {
+    pub const fn id(&self) -> Id {
+        self.id
+    }
+}
+
+// pub struct UserAdapter;
+//
+// struct QueryUser {
+//     id: u32,
+//     name: String,
+//     email: String,
+//     password: String,
+// }
+// impl From<QueryUser> for Package {
+//     fn from(value: QueryUser) -> Self {
+//         Self {
+//             id: Id(value.id),
+//             data: PackageData {
+//                 name: Name(value.name),
+//                 description: Description(value.email),
+//             },
+//         }
+//     }
+// }
+//
+// impl<E> PackageRepository<E> for UserAdapter
+// where
+//     for<'a> &'a E: Executor<'a, Database = MySql>,
+// {
+//     async fn get_by_id(connection: &E, id: Id) -> Result<Option<Package>> {
+//         Ok(sqlx::query_as!(
+//             QueryUser,
+//             "SELECT id, name, email, password FROM Users WHERE id = ?",
+//             id.0
+//         )
+//         .fetch_optional(connection)
+//         .await?
+//         .map(Into::into))
+//     }
+//     async fn get_by_name(connection: &E, name: &Valid<Name>) -> Result<Option<Package>> {
+//         Ok(sqlx::query_as!(
+//             QueryUser,
+//             "SELECT id, name, email, password FROM Users WHERE name = ?",
+//             name.0
+//         )
+//         .fetch_optional(connection)
+//         .await?
+//         .map(Into::into))
+//     }
+//     async fn get_by_email(connection: &E, email: &Valid<Description>) -> Result<Option<Package>> {
+//         Ok(sqlx::query_as!(
+//             QueryUser,
+//             "SELECT id, name, email, password FROM Users WHERE email = ?",
+//             email.0
+//         )
+//         .fetch_optional(connection)
+//         .await?
+//         .map(Into::into))
+//     }
+//
+//     async fn change_name(connection: &mut E, user: &mut Package, name: Valid<Name>) -> Result {
+//         sqlx::query!("UPDATE Users SET name = ? WHERE id = ?", name.0, user.id.0)
+//             .execute(&*connection)
+//             .await?;
+//         Ok(())
+//     }
+//     async fn change_email(
+//         connection: &mut E,
+//         user: &mut Package,
+//         email: Valid<Description>,
+//     ) -> Result {
+//         sqlx::query!(
+//             "UPDATE Users SET email = ? WHERE id = ?",
+//             email.0,
+//             user.id.0
+//         )
+//         .execute(&*connection)
+//         .await?;
+//         Ok(())
+//     }
+//     async fn change_password(
+//         connection: &mut E,
+//         user: &mut Package,
+//         password: Valid<Password>,
+//     ) -> Result {
+//         sqlx::query!(
+//             "UPDATE Users SET password = ? WHERE id = ?",
+//             password.0,
+//             user.id.0
+//         )
+//         .execute(&*connection)
+//         .await?;
+//         Ok(())
+//     }
+//
+//     async fn create(connection: &mut E, data: Valid<PackageData>) -> Result<Package> {
+//         let id = sqlx::query!(
+//             "INSERT INTO Users (name, email, password) VALUES (?, ?, ?)",
+//             data.name.0,
+//             data.description.0,
+//             data.password.0
+//         )
+//         .execute(&*connection)
+//         .await?
+//         .last_insert_id() as u32;
+//
+//         Ok(Package {
+//             id: Id(id),
+//             data: data.into_inner(),
+//         })
+//     }
+// }

3/coursework/src/database/src/port/user.rs

@@ -0,0 +1,105 @@
+pub use super::{CRUD, Result};
+
+pub use chrono::{DateTime, Utc};
+use derive_more::{Deref, From, Into};
+use garde::{Valid, Validate};
+
+#[allow(async_fn_in_trait)]
+pub trait UserRepository<C>:
+    super::CRUD<
+        C,
+        Create = New,
+        Read = Unique,
+        Update = Field,
+        Delete = Unique,
+        Existing = User,
+        Id = Id,
+    >
+{
+    async fn update_user(connection: &mut C, user: &mut User, data: Self::Update) -> Result {
+        Self::update(connection, user.id, data.clone()).await?;
+        match data {
+            Field::Name(valid) => user.name = valid.into_inner(),
+            Field::Email(valid) => user.email = valid.into_inner(),
+            Field::Password(valid) => user.password = valid.into_inner(),
+            Field::LastUsed(date_time) => user.last_used = date_time,
+            Field::CreatedAt(date_time) => user.created_at = date_time,
+            Field::UpdatedAt(date_time) => user.updated_at = date_time,
+        }
+        Ok(())
+    }
+}
+
+#[derive(Deref, Into, Clone, Copy)]
+pub struct Id(pub(crate) u64);
+
+// TODO: is this the right layer for requirements (email) validatoin?
+
+#[derive(Validate, Deref, From, Clone)]
+#[garde(transparent)]
+pub struct Name(#[garde(alphanumeric, length(min = 2, max = 31))] pub String);
+
+#[derive(Validate, Deref, From, Clone)]
+#[garde(transparent)]
+pub struct Email(#[garde(email, length(max = 255))] pub String);
+
+#[derive(Validate, Deref, From, Clone)]
+#[garde(transparent)]
+pub struct Password(#[garde(ascii, length(max = 255))] pub String);
+
+pub struct New {
+    pub name: Valid<Name>,
+    pub email: Valid<Email>,
+    pub password: Valid<Password>,
+    pub last_used: Option<DateTime<Utc>>,
+}
+
+pub enum Unique {
+    Id(Id),
+    Name(Valid<Name>),
+    Email(Valid<Email>),
+}
+
+#[derive(Clone)]
+pub enum Field {
+    Name(Valid<Name>),
+    Email(Valid<Email>),
+    Password(Valid<Password>),
+    LastUsed(Option<DateTime<Utc>>),
+    CreatedAt(DateTime<Utc>),
+    UpdatedAt(DateTime<Utc>),
+}
+
+pub struct User {
+    pub(crate) id: Id,
+    pub(crate) name: Name,
+    pub(crate) email: Email,
+    pub(crate) password: Password,
+    pub(crate) last_used: Option<DateTime<Utc>>,
+    pub(crate) created_at: DateTime<Utc>,
+    pub(crate) updated_at: DateTime<Utc>,
+}
+
+impl User {
+    pub const fn id(&self) -> Id {
+        self.id
+    }
+    pub const fn name(&self) -> &Name {
+        &self.name
+    }
+    pub const fn email(&self) -> &Email {
+        &self.email
+    }
+    pub const fn password(&self) -> &Password {
+        &self.password
+    }
+    pub const fn last_used(&self) -> Option<DateTime<Utc>> {
+        self.last_used
+    }
+    pub const fn created_at(&self) -> DateTime<Utc> {
+        self.created_at
+    }
+    pub const fn updated_at(&self) -> DateTime<Utc> {
+        self.updated_at
+    }
+}

3/coursework/src/database/src/repository.rs

@@ -1,2 +0,0 @@
-pub mod session;
-pub mod user;

3/coursework/src/database/src/repository/session.rs

@@ -1,51 +0,0 @@
-use super::user::User;
-pub type Result<T> = std::result::Result<T, Box<dyn std::error::Error>>;
-
-use chrono::{DateTime, Utc};
-use derive_more::{Deref, DerefMut};
-use sqlx::{Executor, MySql};
-
-#[allow(async_fn_in_trait)]
-pub trait SessionRepository<C> {
-    async fn start(connection: &mut C, user: User) -> Result<Session>;
-    async fn end(connection: &mut C, session: Session) -> Result<User>;
-}
-
-#[derive(DerefMut, Deref)]
-pub struct Session {
-    #[deref]
-    #[deref_mut]
-    user: User,
-
-    start: DateTime<Utc>,
-}
-
-impl Session {
-    pub const fn start(&self) -> DateTime<Utc> {
-        self.start
-    }
-}
-
-#[derive(Debug)]
-pub struct SessionAdapter;
-
-impl<E> SessionRepository<E> for SessionAdapter
-where
-    for<'a> &'a E: Executor<'a, Database = MySql>,
-{
-    async fn start(connection: &mut E, user: User) -> Result<Session> {
-        let start = Utc::now();
-        sqlx::query!(
-            "UPDATE Users SET last_used = ? WHERE id = ?",
-            start,
-            *user.id()
-        )
-        .execute(&*connection)
-        .await?;
-        Ok(Session { user, start })
-    }
-
-    async fn end(_: &mut E, session: Session) -> Result<User> {
-        Ok(session.user)
-    }
-}

3/coursework/src/database/src/repository/user.rs

@@ -1,164 +0,0 @@
-use derive_more::{Deref, From, Into};
-use garde::{Valid, Validate};
-use sqlx::{Executor, MySql};
-
-pub type Result<T = ()> = std::result::Result<T, Box<dyn std::error::Error>>;
-
-#[allow(async_fn_in_trait)]
-pub trait UserRepository<C> {
-    async fn get_by_id(connection: &C, id: Id) -> Result<Option<User>>;
-    async fn get_by_name(connection: &C, name: &Valid<Username>) -> Result<Option<User>>;
-    async fn get_by_email(connection: &C, email: &Valid<Email>) -> Result<Option<User>>;
-
-    async fn change_name(connection: &mut C, user: &mut User, name: Valid<Username>) -> Result;
-    async fn change_email(connection: &mut C, user: &mut User, email: Valid<Email>) -> Result;
-    async fn change_password(
-        connection: &mut C,
-        user: &mut User,
-        password: Valid<Password>,
-    ) -> Result;
-
-    async fn create(connection: &mut C, user: Valid<UserData>) -> Result<User>;
-}
-
-#[derive(Deref, Into, Clone, Copy)]
-pub struct Id(u32);
-
-#[derive(Validate, Deref)]
-#[garde(transparent)]
-pub struct Username(#[garde(alphanumeric, length(min = 2, max = 31))] pub String);
-
-#[derive(Validate, Deref)]
-#[garde(transparent)]
-pub struct Email(#[garde(email, length(max = 255))] pub String);
-
-#[derive(Validate, Deref)]
-#[garde(transparent)]
-pub struct Password(#[garde(ascii, length(max = 255))] pub String);
-
-#[derive(Validate)]
-pub struct UserData {
-    #[garde(dive)]
-    pub name: Username,
-    #[garde(dive)]
-    pub email: Email,
-    #[garde(dive)]
-    pub password: Password,
-}
-
-#[derive(Deref)]
-pub struct User {
-    id: Id,
-    #[deref]
-    data: UserData,
-}
-impl User {
-    pub const fn id(&self) -> Id {
-        self.id
-    }
-}
-
-pub struct UserAdapter;
-
-struct QueryUser {
-    id: u32,
-    name: String,
-    email: String,
-    password: String,
-}
-impl From<QueryUser> for User {
-    fn from(value: QueryUser) -> Self {
-        Self {
-            id: Id(value.id),
-            data: UserData {
-                name: Username(value.name),
-                email: Email(value.email),
-                password: Password(value.password),
-            },
-        }
-    }
-}
-
-impl<E> UserRepository<E> for UserAdapter
-where
-    for<'a> &'a E: Executor<'a, Database = MySql>,
-{
-    async fn get_by_id(connection: &E, id: Id) -> Result<Option<User>> {
-        Ok(sqlx::query_as!(
-            QueryUser,
-            "SELECT id, name, email, password FROM Users WHERE id = ?",
-            id.0
-        )
-        .fetch_optional(connection)
-        .await?
-        .map(Into::into))
-    }
-    async fn get_by_name(connection: &E, name: &Valid<Username>) -> Result<Option<User>> {
-        Ok(sqlx::query_as!(
-            QueryUser,
-            "SELECT id, name, email, password FROM Users WHERE name = ?",
-            name.0
-        )
-        .fetch_optional(connection)
-        .await?
-        .map(Into::into))
-    }
-    async fn get_by_email(connection: &E, email: &Valid<Email>) -> Result<Option<User>> {
-        Ok(sqlx::query_as!(
-            QueryUser,
-            "SELECT id, name, email, password FROM Users WHERE email = ?",
-            email.0
-        )
-        .fetch_optional(connection)
-        .await?
-        .map(Into::into))
-    }
-
-    async fn change_name(connection: &mut E, user: &mut User, name: Valid<Username>) -> Result {
-        sqlx::query!("UPDATE Users SET name = ? WHERE id = ?", name.0, user.id.0)
-            .execute(&*connection)
-            .await?;
-        Ok(())
-    }
-    async fn change_email(connection: &mut E, user: &mut User, email: Valid<Email>) -> Result {
-        sqlx::query!(
-            "UPDATE Users SET email = ? WHERE id = ?",
-            email.0,
-            user.id.0
-        )
-        .execute(&*connection)
-        .await?;
-        Ok(())
-    }
-    async fn change_password(
-        connection: &mut E,
-        user: &mut User,
-        password: Valid<Password>,
-    ) -> Result {
-        sqlx::query!(
-            "UPDATE Users SET password = ? WHERE id = ?",
-            password.0,
-            user.id.0
-        )
-        .execute(&*connection)
-        .await?;
-        Ok(())
-    }
-
-    async fn create(connection: &mut E, user: Valid<UserData>) -> Result<User> {
-        let id = sqlx::query!(
-            "INSERT INTO Users (name, email, password) VALUES (?, ?, ?)",
-            user.name.0,
-            user.email.0,
-            user.password.0
-        )
-        .execute(&*connection)
-        .await?
-        .last_insert_id() as u32;
-
-        Ok(User {
-            id: Id(id),
-            data: user.into_inner(),
-        })
-    }
-}