config: add client-rule infrastructure

src/criteria/clm.rs

@@ -0,0 +1,203 @@
+pub mod clm_matchers;
+
+use {
+    crate::{
+        client::{Client, ClientId},
+        criteria::{
+            CritDestroyListener, CritMatcherId, CritMatcherIds, CritUpstreamNode, FixedRootMatcher,
+            RootMatcherMap,
+            crit_graph::{CritMgr, CritTarget, CritTargetOwner, WeakCritTargetOwner},
+            crit_leaf::{CritLeafEvent, CritLeafMatcher},
+            crit_matchers::critm_constant::CritMatchConstant,
+        },
+        state::State,
+        utils::{copyhashmap::CopyHashMap, hash_map_ext::HashMapExt, queue::AsyncQueue},
+    },
+    std::rc::{Rc, Weak},
+};
+
+bitflags! {
+    ClMatcherChange: u32;
+    CL_CHANGED_DESTROYED   = 1 << 0,
+    CL_CHANGED_NEW         = 1 << 1,
+}
+
+type ClmFixedRootMatcher<T> = FixedRootMatcher<Rc<Client>, T>;
+
+pub struct ClMatcherManager {
+    ids: Rc<CritMatcherIds>,
+    changes: AsyncQueue<Rc<Client>>,
+    leaf_events: Rc<AsyncQueue<CritLeafEvent<Rc<Client>>>>,
+    constant: ClmFixedRootMatcher<CritMatchConstant<Rc<Client>>>,
+    matchers: Rc<RootMatchers>,
+}
+
+#[expect(dead_code)]
+type ClmRootMatcherMap<T> = RootMatcherMap<Rc<Client>, T>;
+
+#[derive(Default)]
+pub struct RootMatchers {}
+
+pub async fn handle_cl_changes(state: Rc<State>) {
+    let mgr = &state.cl_matcher_manager;
+    loop {
+        let tl = mgr.changes.pop().await;
+        mgr.update_matches(&tl);
+    }
+}
+
+pub async fn handle_cl_leaf_events(state: Rc<State>) {
+    let mgr = &state.cl_matcher_manager;
+    let debouncer = state.ring.debouncer(1000);
+    loop {
+        let event = mgr.leaf_events.pop().await;
+        event.run();
+        debouncer.debounce().await;
+    }
+}
+
+#[expect(dead_code)]
+pub type ClmUpstreamNode = dyn CritUpstreamNode<Rc<Client>>;
+pub type ClmLeafMatcher = CritLeafMatcher<Rc<Client>>;
+
+impl ClMatcherManager {
+    pub fn new(ids: &Rc<CritMatcherIds>) -> Self {
+        let matchers = Rc::new(RootMatchers::default());
+        #[expect(unused_macros)]
+        macro_rules! bool {
+            ($name:ident) => {{
+                static_map! {
+                    v => CritRoot::new(
+                        &matchers,
+                        ids.next(),
+                        CritRootFixed($name(v), PhantomData),
+                    )
+                }
+            }};
+        }
+        Self {
+            constant: CritMatchConstant::create(&matchers, ids),
+            changes: Default::default(),
+            leaf_events: Default::default(),
+            ids: ids.clone(),
+            matchers,
+        }
+    }
+
+    pub fn clear(&self) {
+        self.changes.clear();
+        self.leaf_events.clear();
+    }
+
+    pub fn rematch_all(&self, state: &Rc<State>) {
+        for client in state.clients.clients.borrow().values() {
+            client.data.property_changed(CL_CHANGED_NEW);
+        }
+    }
+
+    pub fn changed(&self, client: &Rc<Client>) {
+        self.changes.push(client.clone());
+    }
+
+    fn update_matches(&self, data: &Rc<Client>) {
+        let mut changed = data.changed_properties.take();
+        if changed.contains(CL_CHANGED_DESTROYED) {
+            for destroyed in data.destroyed.lock().drain_values() {
+                if let Some(destroyed) = destroyed.upgrade() {
+                    destroyed.destroyed(data.id);
+                }
+            }
+            return;
+        }
+        #[expect(unused_macros)]
+        macro_rules! handlers {
+            ($name:ident) => {
+                self.matchers
+                    .$name
+                    .lock()
+                    .values()
+                    .filter_map(|m| m.upgrade())
+            };
+        }
+        #[expect(unused_macros)]
+        macro_rules! fixed {
+            ($name:ident) => {
+                self.$name[false].handle(data);
+                self.$name[true].handle(data);
+            };
+        }
+        if changed.contains(CL_CHANGED_NEW) {
+            changed |= ClMatcherChange::all();
+            #[expect(unused_macros)]
+            macro_rules! unconditional {
+                ($field:ident) => {
+                    for m in handlers!($field) {
+                        m.handle(data);
+                    }
+                };
+            }
+            self.constant[true].handle(data);
+        }
+    }
+}
+
+impl CritTarget for Rc<Client> {
+    type Id = ClientId;
+    type Mgr = ClMatcherManager;
+    type RootMatchers = RootMatchers;
+    type LeafData = ClientId;
+    type Owner = Weak<Client>;
+
+    fn owner(&self) -> Self::Owner {
+        Rc::downgrade(self)
+    }
+
+    fn id(&self) -> Self::Id {
+        self.id
+    }
+
+    fn destroyed(&self) -> &CopyHashMap<CritMatcherId, Weak<dyn CritDestroyListener<Self>>> {
+        &self.destroyed
+    }
+
+    fn leaf_data(&self) -> Self::LeafData {
+        self.id
+    }
+}
+
+impl CritTargetOwner for Rc<Client> {
+    type Target = Rc<Client>;
+
+    fn data(&self) -> &Self::Target {
+        self
+    }
+}
+
+impl WeakCritTargetOwner for Weak<Client> {
+    type Target = Rc<Client>;
+    type Owner = Rc<Client>;
+
+    fn upgrade(&self) -> Option<Self::Owner> {
+        self.upgrade()
+    }
+}
+
+impl CritMgr for ClMatcherManager {
+    type Target = Rc<Client>;
+
+    fn id(&self) -> CritMatcherId {
+        self.ids.next()
+    }
+
+    fn leaf_events(&self) -> &Rc<AsyncQueue<CritLeafEvent<Self::Target>>> {
+        &self.leaf_events
+    }
+
+    fn match_constant(&self) -> &FixedRootMatcher<Self::Target, CritMatchConstant<Self::Target>> {
+        &self.constant
+    }
+
+    fn roots(&self) -> &Rc<<Self::Target as CritTarget>::RootMatchers> {
+        &self.matchers
+    }
+}