dashboard: Add lookup by name to entries (#5790)

* Add lookup by name to entries

* adj

* tweak

* tweak

* tweak

* tweak

* tweak

* tweak

* preen

esphome/dashboard/entries.py

@@ -3,6 +3,7 @@ from __future__ import annotations
 import asyncio
 import logging
 import os
+from collections import defaultdict
 from typing import TYPE_CHECKING, Any
 
 from esphome import const, util
@@ -68,6 +69,7 @@ class DashboardEntries:
         "_entry_states",
         "_loaded_entries",
         "_update_lock",
+        "_name_to_entry",
     )
 
     def __init__(self, dashboard: ESPHomeDashboard) -> None:
@@ -83,11 +85,16 @@ class DashboardEntries:
         self._entries: dict[str, DashboardEntry] = {}
         self._loaded_entries = False
         self._update_lock = asyncio.Lock()
+        self._name_to_entry: dict[str, set[DashboardEntry]] = defaultdict(set)
 
     def get(self, path: str) -> DashboardEntry | None:
         """Get an entry by path."""
         return self._entries.get(path)
 
+    def get_by_name(self, name: str) -> set[DashboardEntry] | None:
+        """Get an entry by name."""
+        return self._name_to_entry.get(name)
+
     async def _async_all(self) -> list[DashboardEntry]:
         """Return all entries."""
         return list(self._entries.values())
@@ -155,6 +162,7 @@ class DashboardEntries:
             None, self._get_path_to_cache_key
         )
         entries = self._entries
+        name_to_entry = self._name_to_entry
         added: dict[DashboardEntry, DashboardCacheKeyType] = {}
         updated: dict[DashboardEntry, DashboardCacheKeyType] = {}
         removed: set[DashboardEntry] = {
@@ -162,14 +170,17 @@ class DashboardEntries:
             for filename, entry in entries.items()
             if filename not in path_to_cache_key
         }
+        original_names: dict[DashboardEntry, str] = {}
 
         for path, cache_key in path_to_cache_key.items():
-            if entry := entries.get(path):
-                if entry.cache_key != cache_key:
-                    updated[entry] = cache_key
-            else:
+            if not (entry := entries.get(path)):
                 entry = DashboardEntry(path, cache_key)
                 added[entry] = cache_key
+                continue
+
+            if entry.cache_key != cache_key:
+                updated[entry] = cache_key
+                original_names[entry] = entry.name
 
         if added or updated:
             await self._loop.run_in_executor(
@@ -179,13 +190,18 @@ class DashboardEntries:
         bus = self._dashboard.bus
         for entry in added:
             entries[entry.path] = entry
+            name_to_entry[entry.name].add(entry)
             bus.async_fire(EVENT_ENTRY_ADDED, {"entry": entry})
 
         for entry in removed:
             del entries[entry.path]
+            name_to_entry[entry.name].discard(entry)
             bus.async_fire(EVENT_ENTRY_REMOVED, {"entry": entry})
 
         for entry in updated:
+            if (original_name := original_names[entry]) != (current_name := entry.name):
+                name_to_entry[original_name].discard(entry)
+                name_to_entry[current_name].add(entry)
             bus.async_fire(EVENT_ENTRY_UPDATED, {"entry": entry})
 
     def _get_path_to_cache_key(self) -> dict[str, DashboardCacheKeyType]:

esphome/dashboard/status/mdns.py

@@ -24,17 +24,8 @@ class MDNSStatus:
         self.aiozc: AsyncEsphomeZeroconf | None = None
         # This is the current mdns state for each host (True, False, None)
         self.host_mdns_state: dict[str, bool | None] = {}
-        # This is the hostnames to path mapping
-        self.host_name_to_path: dict[str, str] = {}
-        self.path_to_host_name: dict[str, str] = {}
-        # This is a set of host names to track (i.e no_mdns = false)
-        self.host_name_with_mdns_enabled: set[set] = set()
         self._loop = asyncio.get_running_loop()
 
-    def get_path_to_host_name(self, path: str) -> str | None:
-        """Resolve a path to an address in a thread-safe manner."""
-        return self.path_to_host_name.get(path)
-
     async def async_resolve_host(self, host_name: str) -> str | None:
         """Resolve a host name to an address in a thread-safe manner."""
         if aiozc := self.aiozc:
@@ -44,52 +35,31 @@ class MDNSStatus:
     async def async_refresh_hosts(self):
         """Refresh the hosts to track."""
         dashboard = DASHBOARD
-        current_entries = dashboard.entries.async_all()
-        host_name_with_mdns_enabled = self.host_name_with_mdns_enabled
         host_mdns_state = self.host_mdns_state
-        host_name_to_path = self.host_name_to_path
-        path_to_host_name = self.path_to_host_name
         entries = dashboard.entries
-
-        for entry in current_entries:
-            name = entry.name
-            # If no_mdns is set, remove it from the set
+        for entry in entries.async_all():
             if entry.no_mdns:
-                host_name_with_mdns_enabled.discard(name)
                 continue
-
-            # We are tracking this host
-            host_name_with_mdns_enabled.add(name)
-            path = entry.path
-
             # If we just adopted/imported this host, we likely
             # already have a state for it, so we should make sure
             # to set it so the dashboard shows it as online
-            if (online := host_mdns_state.get(name, SENTINEL)) != SENTINEL:
+            if (online := host_mdns_state.get(entry.name, SENTINEL)) != SENTINEL:
                 entries.async_set_state(entry, bool_to_entry_state(online))
 
-            # Make sure the mapping is up to date
-            # so when we get an mdns update we can map it back
-            # to the filename
-            host_name_to_path[name] = path
-            path_to_host_name[path] = name
-
     async def async_run(self) -> None:
         dashboard = DASHBOARD
         entries = dashboard.entries
         aiozc = AsyncEsphomeZeroconf()
         self.aiozc = aiozc
         host_mdns_state = self.host_mdns_state
-        host_name_to_path = self.host_name_to_path
-        host_name_with_mdns_enabled = self.host_name_with_mdns_enabled
 
         def on_update(dat: dict[str, bool | None]) -> None:
             """Update the entry state."""
             for name, result in dat.items():
                 host_mdns_state[name] = result
-                if name not in host_name_with_mdns_enabled:
-                    continue
-                if entry := entries.get(host_name_to_path[name]):
+                if matching_entries := entries.get_by_name(name):
+                    for entry in matching_entries:
+                        if not entry.no_mdns:
                             entries.async_set_state(entry, bool_to_entry_state(result))
 
         stat = DashboardStatus(on_update)
@@ -102,10 +72,11 @@ class MDNSStatus:
             [stat.browser_callback, imports.browser_callback],
         )
 
+        ping_request = dashboard.ping_request
         while not dashboard.stop_event.is_set():
             await self.async_refresh_hosts()
-            await dashboard.ping_request.wait()
-            dashboard.ping_request.clear()
+            await ping_request.wait()
+            ping_request.clear()
 
         await browser.async_cancel()
         await aiozc.async_close()

esphome/dashboard/web_server.py

@@ -271,14 +271,15 @@ class EsphomePortCommandWebSocket(EsphomeCommandWebSocket):
     ) -> list[str]:
         """Build the command to run."""
         dashboard = DASHBOARD
+        entries = dashboard.entries
         configuration = json_message["configuration"]
         config_file = settings.rel_path(configuration)
         port = json_message["port"]
         if (
             port == "OTA"
             and (mdns := dashboard.mdns_status)
-            and (host_name := mdns.get_path_to_host_name(config_file))
-            and (address := await mdns.async_resolve_host(host_name))
+            and (entry := entries.get(config_file))
+            and (address := await mdns.async_resolve_host(entry.name))
         ):
             port = address