initial commit

AuthRepository.swift

@@ -0,0 +1,52 @@
+import Foundation
+
+/// Authentication, session, and system info.
+@MainActor
+final class AuthRepository {
+    private let client: APIClient
+    private let session: SessionStore
+    private let config: APIConfiguration
+
+    init(client: APIClient, session: SessionStore, config: APIConfiguration) {
+        self.client = client
+        self.session = session
+        self.config = config
+    }
+
+    /// Logs in, then (optionally) selects the configured database. Auth state is
+    /// carried by cookies that `URLSession` stores automatically.
+    @discardableResult
+    func login(email: String, password: String) async throws -> AuthResponse {
+        let response: AuthResponse = try await client.send(
+            "POST", .authenticate,
+            body: AuthRequest(email: email, password: password),
+            wrapInData: false,                 // login body is sent unwrapped
+            as: AuthResponse.self
+        )
+        session.markAuthenticated()
+        if let db = config.databaseId {
+            try await selectDatabase(db)
+        }
+        return response
+    }
+
+    func selectDatabase(_ id: String) async throws {
+        // Body is `{ "data": "<db id>" }` — a bare string under the envelope.
+        let _: JSONValue = try await client.send(
+            "PUT", .databaseSelection,
+            body: id,
+            wrapInData: true,
+            as: JSONValue.self
+        )
+    }
+
+    func logout() async {
+        // Best effort; clear local session regardless of outcome.
+        _ = try? await client.action("GET", .logout, as: JSONValue.self)
+        session.clear()
+    }
+
+    func version() async throws -> VersionInfo {
+        try await client.get(.version, as: VersionInfo.self)
+    }
+}