chore: coderabbit suggestions

docs/modules/ROOT/pages/reference/multiple_instances.adoc

@@ -28,7 +28,7 @@ When you come to create the config.yaml file, OliveTin will look for this in it'
 
 Because you are running outside of a container, you will also need to change the "internal" ports used by OliveTin so they are separate for all instances. OliveTin listens on 4 addresses (1 external, 3 internal) and needs 4 ports. You can read about these in the xref:reference/network-ports.adoc[network ports documentation].
 
-NOTE: If the `PORT` environment variable is set, OliveTin listens on that port for the single HTTP frontend (overriding `listenAddressSingleHTTPFrontend` in the config). When `PORT` is unset, the config value is used, or `1337` if that setting is omitted. `PORT` is also used as a base for the other internal listen addresses (+1, +2, …) when those are not set in the config. For example, if `PORT` is 2000, the single frontend starts on port 2000, the REST API on 2001, and so on.
+NOTE: If the `PORT` environment variable is set, OliveTin listens on that port for the single HTTP frontend only (overriding `listenAddressSingleHTTPFrontend` in the config, keeping the host from the config). When `PORT` is unset, the config value is used, or `0.0.0.0:1337` if that setting is omitted. `PORT` does not change the other internal listen addresses — set those explicitly in each instance's config as shown below.
 
 You could end up with a setup that looks like this;
 

docs/modules/ROOT/pages/reference/network-ports.adoc

@@ -53,7 +53,7 @@ Below is a detailed reference table.
 
 == PORT environment variable
 
-If the `PORT` environment variable is set at startup, OliveTin uses it as the listen port for `listenAddressSingleHTTPFrontend`, keeping the host from the config (default host `0.0.0.0`). This overrides an explicit port in `config.yaml`, which is useful on platforms that assign a port via `PORT` (for example Heroku or Cloud Run).
+If the `PORT` environment variable is set at startup, OliveTin uses it as the listen port for `listenAddressSingleHTTPFrontend` only, keeping the host from the config (default host `0.0.0.0`). This overrides an explicit port in `config.yaml`, which is useful on platforms that assign a port via `PORT` (for example Heroku or Cloud Run). Internal listen addresses (`listenAddressRestActions`, `listenAddressWebUI`, and so on) are not derived from `PORT`; configure those separately when needed.
 
 When `PORT` is not set, OliveTin uses `listenAddressSingleHTTPFrontend` from the config, or `0.0.0.0:1337` if that setting is omitted.
 

frontend/resources/vue/views/LogsListView.vue

@@ -275,9 +275,34 @@ watch(() => route.query.date, () => {
 watch(searchText, (value) => {
   currentPage.value = 1
   storeLogsFilter(value)
+  syncFilterToRoute(value)
   scheduleFetchLogs()
 })
 
+watch(() => route.query.filter, (filter) => {
+  const next = typeof filter === 'string' ? filter : ''
+  if (searchText.value === next) {
+    return
+  }
+  searchText.value = next
+})
+
+function syncFilterToRoute (value) {
+  const next = value || ''
+  const current = typeof route.query.filter === 'string' ? route.query.filter : ''
+  if (next === current) {
+    return
+  }
+
+  const query = { ...route.query }
+  if (next) {
+    query.filter = next
+  } else {
+    delete query.filter
+  }
+  router.replace({ path: route.path, query })
+}
+
 async function fetchLogs () {
   loading.value = true
   filterError.value = ''
@@ -326,14 +351,6 @@ function scheduleFetchLogs () {
 
 function clearSearch () {
   searchText.value = ''
-
-  if (route.query.filter == null) {
-    return
-  }
-
-  const query = { ...route.query }
-  delete query.filter
-  router.replace({ path: route.path, query })
 }
 
 function clearDateFilter () {

service/internal/config/config_reloader.go

@@ -90,27 +90,28 @@ func afterLoadFinalize(cfg *Config, configPath string) {
 	}
 }
 
-// applyPortEnvironmentOverride sets the single HTTP frontend listen port from
-// $PORT when that environment variable is set. This runs after config unmarshal
-// so PORT wins over listenAddressSingleHTTPFrontend in config.yaml (common on
-// Heroku, Cloud Run, and similar hosts). When PORT is unset, the config value
-// or the default (1337) is left unchanged.
+// applyPortEnvironmentOverride lets the PORT environment variable take precedence
+// over the configured HTTP frontend port.
 func applyPortEnvironmentOverride(cfg *Config) {
 	envPort := strings.TrimSpace(os.Getenv("PORT"))
 	if envPort == "" {
 		return
 	}
 
-	port, err := strconv.Atoi(envPort)
-	if err != nil || port < 1 || port > 65535 {
-		log.WithFields(log.Fields{
-			"PORT":  envPort,
-			"error": err,
-		}).Error("Ignoring invalid PORT environment variable")
+	port, ok := parseEnvPort(envPort)
+	if !ok {
+		return
+	}
+
+	host, ok := listenHostOrDefault(cfg.ListenAddressSingleHTTPFrontend)
+	if !ok {
+		log.WithFields(log.Fields{
+			"PORT":          envPort,
+			"listenAddress": cfg.ListenAddressSingleHTTPFrontend,
+		}).Error("Ignoring PORT environment variable because listenAddressSingleHTTPFrontend is invalid")
 		return
 	}
 
-	host := listenHostOrDefault(cfg.ListenAddressSingleHTTPFrontend)
 	cfg.ListenAddressSingleHTTPFrontend = net.JoinHostPort(host, strconv.Itoa(port))
 
 	log.WithFields(log.Fields{
@@ -118,13 +119,34 @@ func applyPortEnvironmentOverride(cfg *Config) {
 	}).Info("Using PORT environment variable for single HTTP frontend listen address")
 }
 
-func listenHostOrDefault(listenAddress string) string {
-	host, _, err := net.SplitHostPort(listenAddress)
-	if err != nil || host == "" {
-		return "0.0.0.0"
+func parseEnvPort(envPort string) (int, bool) {
+	port, err := strconv.Atoi(envPort)
+	if err != nil || port < 1 || port > 65535 {
+		log.WithFields(log.Fields{
+			"PORT":  envPort,
+			"error": err,
+		}).Error("Ignoring invalid PORT environment variable")
+		return 0, false
 	}
 
-	return host
+	return port, true
+}
+
+func listenHostOrDefault(listenAddress string) (string, bool) {
+	if strings.TrimSpace(listenAddress) == "" {
+		return "0.0.0.0", true
+	}
+
+	host, _, err := net.SplitHostPort(listenAddress)
+	if err != nil {
+		return "", false
+	}
+
+	if host == "" {
+		return "0.0.0.0", true
+	}
+
+	return host, true
 }
 
 // buildIncludePath constructs the full path to the include directory.

service/internal/config/port_env_test.go

@@ -45,3 +45,23 @@ func TestApplyPortEnvironmentOverrideIgnoresInvalid(t *testing.T) {
 
 	assert.Equal(t, "0.0.0.0:1337", cfg.ListenAddressSingleHTTPFrontend)
 }
+
+func TestApplyPortEnvironmentOverrideEmptyListenAddressDefaultsHost(t *testing.T) {
+	t.Setenv("PORT", "8080")
+
+	cfg := DefaultConfig()
+	cfg.ListenAddressSingleHTTPFrontend = ""
+	applyPortEnvironmentOverride(cfg)
+
+	assert.Equal(t, "0.0.0.0:8080", cfg.ListenAddressSingleHTTPFrontend)
+}
+
+func TestApplyPortEnvironmentOverrideRejectsMalformedListenAddress(t *testing.T) {
+	t.Setenv("PORT", "8080")
+
+	cfg := DefaultConfig()
+	cfg.ListenAddressSingleHTTPFrontend = "not-a-valid-address"
+	applyPortEnvironmentOverride(cfg)
+
+	assert.Equal(t, "not-a-valid-address", cfg.ListenAddressSingleHTTPFrontend)
+}