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use serde::{Deserialize, Serialize};
use sqlx::FromRow;
use uuid::Uuid;
#[derive(Debug, Serialize, Deserialize, FromRow, Clone, PartialEq, Eq)]
pub struct User {
pub id: i64,
pub user_id: String, // API token
pub role: UserRole,
}
#[derive(Debug, Serialize, Deserialize, sqlx::Type, Clone, PartialEq, Eq, Default)]
#[sqlx(type_name = "TEXT")]
pub enum UserRole {
#[serde(rename = "user")]
#[default]
User,
#[serde(rename = "admin")]
Admin,
}
pub struct UserRepository<'a> {
pub db: &'a sqlx::SqlitePool,
}
impl<'a> UserRepository<'a> {
pub async fn list_users(&self) -> Result<Vec<User>, sqlx::Error> {
sqlx::query_as::<_, User>("SELECT id, user_id, role FROM users")
.fetch_all(self.db)
.await
}
pub async fn get_user_by_id(&self, id: i64) -> Result<Option<User>, sqlx::Error> {
sqlx::query_as::<_, User>("SELECT id, user_id, role FROM users WHERE id = ?")
.bind(id)
.fetch_optional(self.db)
.await
}
pub async fn get_user_by_user_id(&self, user_id: &str) -> Result<Option<User>, sqlx::Error> {
sqlx::query_as::<_, User>("SELECT id, user_id, role FROM users WHERE user_id = ?")
.bind(user_id)
.fetch_optional(self.db)
.await
}
pub async fn create_user(
&self,
user_id: Option<String>,
role: Option<UserRole>,
) -> Result<User, sqlx::Error> {
let user_id = user_id.unwrap_or_else(|| Uuid::new_v4().to_string());
let role = role.unwrap_or_default();
sqlx::query_as::<_, User>(
"INSERT INTO users (user_id, role) VALUES (?, ?) RETURNING id, user_id, role",
)
.bind(user_id)
.bind(role)
.fetch_one(self.db)
.await
}
pub async fn update_user(&self, id: i64, role: UserRole) -> Result<User, sqlx::Error> {
sqlx::query_as::<_, User>(
"UPDATE users SET role = ? WHERE id = ? RETURNING id, user_id, role",
)
.bind(role)
.bind(id)
.fetch_one(self.db)
.await
}
pub async fn delete_user(&self, id: i64) -> Result<(), sqlx::Error> {
sqlx::query("DELETE FROM users WHERE id = ?")
.bind(id)
.execute(self.db)
.await?;
Ok(())
}
pub async fn any_admin_exists(&self) -> Result<bool, sqlx::Error> {
let count: (i64,) = sqlx::query_as("SELECT COUNT(*) FROM users WHERE role = ?")
.bind(UserRole::Admin)
.fetch_one(self.db)
.await?;
Ok(count.0 > 0)
}
}
#[cfg(test)]
mod tests {
use super::*;
use sqlx::{Executor, SqlitePool};
async fn setup_db() -> SqlitePool {
let pool = SqlitePool::connect(":memory:").await.unwrap();
pool.execute(
"CREATE TABLE users (
id INTEGER PRIMARY KEY AUTOINCREMENT,
user_id TEXT NOT NULL UNIQUE,
role TEXT NOT NULL DEFAULT 'user'
);",
)
.await
.unwrap();
pool
}
#[tokio::test]
async fn test_create_and_get_user() {
let db = setup_db().await;
let repo = UserRepository { db: &db };
let user = repo.create_user(None, Some(UserRole::Admin)).await.unwrap();
assert_eq!(user.role, UserRole::Admin);
let fetched = repo
.get_user_by_user_id(&user.user_id)
.await
.unwrap()
.unwrap();
assert_eq!(fetched.user_id, user.user_id);
}
#[tokio::test]
async fn test_update_user() {
let db = setup_db().await;
let repo = UserRepository { db: &db };
let user = repo.create_user(None, Some(UserRole::User)).await.unwrap();
let updated = repo.update_user(user.id, UserRole::Admin).await.unwrap();
assert_eq!(updated.role, UserRole::Admin);
}
#[tokio::test]
async fn test_delete_user() {
let db = setup_db().await;
let repo = UserRepository { db: &db };
let user = repo.create_user(None, None).await.unwrap();
repo.delete_user(user.id).await.unwrap();
let fetched = repo.get_user_by_id(user.id).await.unwrap();
assert!(fetched.is_none());
}
#[tokio::test]
async fn test_list_users() {
let db = setup_db().await;
let repo = UserRepository { db: &db };
repo.create_user(None, Some(UserRole::User)).await.unwrap();
repo.create_user(None, Some(UserRole::Admin)).await.unwrap();
let users = repo.list_users().await.unwrap();
assert_eq!(users.len(), 2);
}
#[tokio::test]
async fn test_any_admin_exists() {
let db = setup_db().await;
let repo = UserRepository { db: &db };
// No admin yet
assert!(!repo.any_admin_exists().await.unwrap());
// Add a user (not admin)
repo.create_user(None, Some(UserRole::User)).await.unwrap();
assert!(!repo.any_admin_exists().await.unwrap());
// Add an admin
repo.create_user(None, Some(UserRole::Admin)).await.unwrap();
assert!(repo.any_admin_exists().await.unwrap());
}
}
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