feat(gui): tines-gui skeleton (ipc client, config gen, theme)

tines-gui/tests/config.rs

@@ -0,0 +1,75 @@
+//! The GUI's generated configs must deserialize as the service's `Config`
+//! byte-for-byte: unknown keys are fatal on the service side.
+
+use tines_gui::config::{NodeConfig, generate_node_id};
+
+#[test]
+fn generated_config_parses_as_service_config() {
+    // bt: transport bt, a peer, no bus socket.
+    let bt = NodeConfig::bt(
+        generate_node_id(),
+        Some(generate_node_id()),
+        "/tmp/fleet/log".into(),
+        "/tmp/fleet/node.sock".into(),
+    );
+    let json = serde_json::to_string(&bt).unwrap();
+    let parsed: tines::config::Config =
+        serde_json::from_str(&json).expect("bt config must parse as the service config");
+    assert_eq!(parsed.node_id, bt.node_id);
+    assert_eq!(parsed.peer, bt.peer);
+    assert_eq!(parsed.bus_socket, None);
+    assert_eq!(parsed.validate(), Ok(()));
+
+    // bus: transport bus, no peer, a bus socket.
+    let bus = NodeConfig::bus(
+        generate_node_id(),
+        None,
+        "/tmp/fleet/log".into(),
+        "/tmp/fleet/node.sock".into(),
+        "/tmp/fleet/bus.sock".into(),
+    );
+    let json = serde_json::to_string(&bus).unwrap();
+    let parsed: tines::config::Config =
+        serde_json::from_str(&json).expect("bus config must parse as the service config");
+    assert_eq!(parsed.node_id, bus.node_id);
+    assert_eq!(parsed.peer, None);
+    assert_eq!(parsed.bus_socket, Some("/tmp/fleet/bus.sock".to_string()));
+    assert_eq!(parsed.validate(), Ok(()));
+}
+
+#[test]
+fn node_id_is_32_hex_chars() {
+    let id = generate_node_id();
+    assert_eq!(id.len(), 32, "node id must be 32 chars, got {id:?}");
+    assert!(
+        id.chars()
+            .all(|c| c.is_ascii_hexdigit() && !c.is_ascii_uppercase()),
+        "node id must be lowercase hex, got {id:?}"
+    );
+}
+
+#[test]
+fn fleet_dir_is_0700() {
+    use std::os::unix::fs::PermissionsExt;
+
+    // Point XDG_STATE_HOME at a scratch dir so the test never touches the
+    // real ~/.local/state, and fleet_dir's creation is what we inspect.
+    let scratch = std::env::temp_dir().join(format!("tines-gui-state-{}", std::process::id()));
+    std::fs::remove_dir_all(&scratch).ok();
+    std::fs::create_dir_all(&scratch).unwrap();
+    // SAFETY: this is the only test in this binary touching fleet_dir, and
+    // the test binary dies right after; the env change cannot leak to other
+    // tests in other binaries.
+    unsafe { std::env::set_var("XDG_STATE_HOME", &scratch) };
+
+    let dir = tines_gui::config::fleet_dir("fleet-a");
+    let meta = std::fs::metadata(&dir).expect("fleet dir must be created");
+    assert!(meta.is_dir());
+    assert_eq!(
+        meta.permissions().mode() & 0o777,
+        0o700,
+        "fleet dir must be 0700"
+    );
+
+    std::fs::remove_dir_all(&scratch).ok();
+}