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use futures::stream::{StreamExt as _, TryStreamExt as _};
use sqlx::{SqliteConnection, Transaction, sqlite::Sqlite};
use crate::{
clock::DateTime,
event::{Instant, Sequence},
name::{self, Name},
password::StoredHash,
user::{History, Id, User},
};
pub trait Provider {
fn users(&mut self) -> Users<'_>;
}
impl Provider for Transaction<'_, Sqlite> {
fn users(&mut self) -> Users<'_> {
Users(self)
}
}
pub struct Users<'t>(&'t mut SqliteConnection);
impl Users<'_> {
pub async fn create(
&mut self,
name: &Name,
password: &StoredHash,
created: &Instant,
) -> Result<History, sqlx::Error> {
let id = Id::generate();
let display_name = name.display();
let canonical_name = name.canonical();
sqlx::query!(
r#"
insert into login (id, display_name, canonical_name, password)
values ($1, $2, $3, $4)
"#,
id,
display_name,
canonical_name,
password,
)
.execute(&mut *self.0)
.await?;
sqlx::query!(
r#"
insert into user (id, created_sequence, created_at)
values ($1, $2, $3)
"#,
id,
created.sequence,
created.at,
)
.execute(&mut *self.0)
.await?;
let user = History {
created: *created,
user: User {
id,
name: name.clone(),
},
};
Ok(user)
}
pub async fn set_password(
&mut self,
login: &History,
to: &StoredHash,
) -> Result<(), sqlx::Error> {
let login = login.id();
sqlx::query_scalar!(
r#"
update login
set password = $1
where id = $2
returning id as "id: Id"
"#,
to,
login,
)
.fetch_one(&mut *self.0)
.await?;
Ok(())
}
pub async fn all(&mut self, resume_at: Sequence) -> Result<Vec<History>, LoadError> {
let logins = sqlx::query!(
r#"
select
id as "id: Id",
login.display_name as "display_name: String",
login.canonical_name as "canonical_name: String",
user.created_sequence as "created_sequence: Sequence",
user.created_at as "created_at: DateTime"
from user
join login using (id)
where user.created_sequence <= $1
order by canonical_name
"#,
resume_at,
)
.map(|row| {
Ok::<_, LoadError>(History {
user: User {
id: row.id,
name: Name::new(row.display_name, row.canonical_name)?,
},
created: Instant::new(row.created_at, row.created_sequence),
})
})
.fetch(&mut *self.0)
.map(|res| res?)
.try_collect()
.await?;
Ok(logins)
}
pub async fn replay(&mut self, resume_at: Sequence) -> Result<Vec<History>, LoadError> {
let logins = sqlx::query!(
r#"
select
id as "id: Id",
login.display_name as "display_name: String",
login.canonical_name as "canonical_name: String",
user.created_sequence as "created_sequence: Sequence",
user.created_at as "created_at: DateTime"
from user
join login using (id)
where user.created_sequence > $1
"#,
resume_at,
)
.map(|row| {
Ok::<_, name::Error>(History {
user: User {
id: row.id,
name: Name::new(row.display_name, row.canonical_name)?,
},
created: Instant::new(row.created_at, row.created_sequence),
})
})
.fetch(&mut *self.0)
.map(|res| Ok::<_, LoadError>(res??))
.try_collect()
.await?;
Ok(logins)
}
}
#[derive(Debug, thiserror::Error)]
#[error(transparent)]
pub enum LoadError {
Database(#[from] sqlx::Error),
Name(#[from] name::Error),
}
|
