feat: users table with sqlx, migrations, data persistence

pacman-server/src/data/user.rs

@@ -0,0 +1,69 @@
+use serde::Serialize;
+use sqlx::FromRow;
+
+#[derive(Debug, Clone, Serialize, FromRow)]
+pub struct User {
+    pub id: i64,
+    pub provider: String,
+    pub provider_user_id: String,
+    pub username: String,
+    pub display_name: Option<String>,
+    pub email: Option<String>,
+    pub avatar_url: Option<String>,
+    pub created_at: chrono::DateTime<chrono::Utc>,
+    pub updated_at: chrono::DateTime<chrono::Utc>,
+}
+
+pub async fn upsert_user(
+    pool: &sqlx::PgPool,
+    provider: &str,
+    provider_user_id: &str,
+    username: &str,
+    display_name: Option<&str>,
+    email: Option<&str>,
+    avatar_url: Option<&str>,
+) -> Result<User, sqlx::Error> {
+    let rec = sqlx::query_as::<_, User>(
+        r#"
+        INSERT INTO users (provider, provider_user_id, username, display_name, email, avatar_url)
+        VALUES ($1, $2, $3, $4, $5, $6)
+        ON CONFLICT (provider, provider_user_id)
+        DO UPDATE SET
+            username = EXCLUDED.username,
+            display_name = EXCLUDED.display_name,
+            email = EXCLUDED.email,
+            avatar_url = EXCLUDED.avatar_url,
+            updated_at = NOW()
+        RETURNING id, provider, provider_user_id, username, display_name, email, avatar_url, created_at, updated_at
+        "#,
+    )
+    .bind(provider)
+    .bind(provider_user_id)
+    .bind(username)
+    .bind(display_name)
+    .bind(email)
+    .bind(avatar_url)
+    .fetch_one(pool)
+    .await?;
+
+    Ok(rec)
+}
+
+pub async fn get_user_by_provider_id(
+    pool: &sqlx::PgPool,
+    provider: &str,
+    provider_user_id: &str,
+) -> Result<Option<User>, sqlx::Error> {
+    let rec = sqlx::query_as::<_, User>(
+        r#"
+        SELECT id, provider, provider_user_id, username, display_name, email, avatar_url, created_at, updated_at
+        FROM users
+        WHERE provider = $1 AND provider_user_id = $2
+        "#,
+    )
+    .bind(provider)
+    .bind(provider_user_id)
+    .fetch_optional(pool)
+    .await?;
+    Ok(rec)
+}