Implement alias selection and summary fetching in incident and live pages

- Added functionality to manage and display available aliases for incidents and live updates, enhancing user interaction.
- Refactored alias handling to use checkboxes for selection, improving usability and clarity in the UI.
- Integrated fetching of aggregated summary data to populate available aliases dynamically, ensuring up-to-date information.
- Updated the logic for applying selected aliases in API requests, streamlining data retrieval based on user preferences.

internal/server/gateway.go

@@ -356,6 +356,13 @@ func (s *statusWriter) WriteHeader(code int) {
 	s.ResponseWriter.WriteHeader(code)
 }
 
+// Flush keeps streaming compatibility (SSE/EventSource) through middleware wrappers.
+func (s *statusWriter) Flush() {
+	if f, ok := s.ResponseWriter.(http.Flusher); ok {
+		f.Flush()
+	}
+}
+
 // Shutdown idle connections on the shared transport.
 func (g *Gateway) Shutdown(ctx context.Context) error {
 	g.transport.CloseIdleConnections()

web/src/routes/incidents/+page.svelte

@@ -5,6 +5,7 @@
 	import {
 		ApiError,
 		fetchAggIncidents,
+		fetchAggSummary,
 		type IncidentItem,
 		type IncidentsData
 	} from '$lib/api/client.js';
@@ -29,8 +30,8 @@
 	let partial = $state(false);
 	let generatedAt = $state<string | null>(null);
 	let data = $state<IncidentsData | null>(null);
-	let aliases = $state('');
+	let availableAliases = $state<string[]>([]);
-	let aliasesInput = $state('');
+	let selectedAliases = $state<string[]>([]);
 	let refreshSeconds = $state(30);
 	let refreshInput = $state('30');
 	let lastSuccessAtMs = $state<number | null>(null);
@@ -47,6 +48,27 @@
 		return Math.max(10, Math.min(300, Math.floor(n)));
 	}
 
+	function parseAliases(raw: string | null): string[] {
+		if (!raw) return [];
+		const out = raw
+			.split(',')
+			.map((s) => s.trim())
+			.filter(Boolean);
+		return Array.from(new Set(out)).sort();
+	}
+
+	function aliasesLabel(): string {
+		if (selectedAliases.length === 0) return 'Все ноды';
+		if (selectedAliases.length <= 3) return selectedAliases.join(', ');
+		return `${selectedAliases.slice(0, 3).join(', ')} +${selectedAliases.length - 3}`;
+	}
+
+	function toggleAlias(a: string) {
+		if (!a) return;
+		const has = selectedAliases.includes(a);
+		selectedAliases = has ? selectedAliases.filter((x) => x !== a) : [...selectedAliases, a].sort();
+	}
+
 	function triageFor(id: string): TriageState {
 		return triageById[id] ?? {};
 	}
@@ -111,7 +133,8 @@
 		loading = true;
 		err = null;
 		try {
-			const env = await fetchAggIncidents({ aliases: aliases || undefined });
+			const aliasesParam = selectedAliases.length ? selectedAliases.join(',') : undefined;
+			const env = await fetchAggIncidents({ aliases: aliasesParam });
 			data = env.data ?? null;
 			partial = !!env.partial;
 			generatedAt = env.generated_at;
@@ -125,9 +148,8 @@
 
 	async function applyControls() {
 		const q = new URLSearchParams(page.url.searchParams);
-		const normalizedAliases = aliasesInput.trim();
 		const parsedRefresh = parseRefresh(refreshInput);
-		if (normalizedAliases) q.set('aliases', normalizedAliases);
+		if (selectedAliases.length > 0) q.set('aliases', selectedAliases.join(','));
 		else q.delete('aliases');
 		if (parsedRefresh === 30) q.delete('refresh');
 		else q.set('refresh', String(parsedRefresh));
@@ -143,9 +165,8 @@
 	$effect(() => {
 		queryKey;
 		if (typeof window === 'undefined') return;
-		aliases = page.url.searchParams.get('aliases')?.trim() ?? '';
+		selectedAliases = parseAliases(page.url.searchParams.get('aliases'));
 		refreshSeconds = parseRefresh(page.url.searchParams.get('refresh'));
-		aliasesInput = aliases;
 		refreshInput = String(refreshSeconds);
 		restartPolling();
 		void load();
@@ -160,6 +181,19 @@
 
 	onMount(() => {
 		loadTriage();
+		void (async () => {
+			try {
+				const env = await fetchAggSummary({ top_n: 10 });
+				const aliases = (env.data.servers ?? [])
+					.map((s) => s.alias)
+					.filter((a): a is string => typeof a === 'string' && a.length > 0)
+					.sort();
+				availableAliases = aliases;
+				selectedAliases = selectedAliases.filter((a) => aliases.includes(a));
+			} catch {
+				availableAliases = [];
+			}
+		})();
 		staleTimer = setInterval(() => {
 			nowMs = Date.now();
 		}, 1000);
@@ -190,15 +224,31 @@
 </div>
 
 <div class="mb-4 flex flex-wrap items-end gap-2">
-	<label class="text-xs text-muted-foreground">
+	<details class="rounded-md border bg-background p-2">
-		Aliases
+		<summary class="cursor-pointer select-none text-sm">
+			<span class="text-xs text-muted-foreground">Aliases</span>
+			<span class="ml-2 font-medium">{aliasesLabel()}</span>
+		</summary>
+		<div class="mt-2 max-h-48 overflow-auto pr-1">
+			{#if availableAliases.length === 0}
+				<div class="px-2 py-1 text-xs text-muted-foreground">Список нод не загружен</div>
+			{:else}
+				<div class="flex flex-col gap-1">
+					{#each availableAliases as a (a)}
+						<label class="flex cursor-pointer items-center gap-2 rounded px-2 py-1 hover:bg-accent/50">
 							<input
-			type="text"
+								type="checkbox"
-			class="mt-1 h-9 w-56 rounded-md border bg-background px-2 text-sm"
+								class="rounded"
-			bind:value={aliasesInput}
+								checked={selectedAliases.includes(a)}
-			placeholder="node-a,node-b"
+								onchange={() => toggleAlias(a)}
 							/>
+							<span class="text-sm">{a}</span>
 						</label>
+					{/each}
+				</div>
+			{/if}
+		</div>
+	</details>
 	<label class="text-xs text-muted-foreground">
 		Refresh (sec)
 		<input

web/src/routes/live/+page.svelte

@@ -4,6 +4,7 @@
 	import { goto } from '$app/navigation';
 	import {
 		liveEventsUrl,
+		fetchAggSummary,
 		type IncidentItem,
 		type IncidentSeverity,
 		type IncidentStatus
@@ -32,8 +33,8 @@
 		aliases_used?: string[];
 	};
 
-	let aliases = $state('');
+	let availableAliases = $state<string[]>([]);
-	let aliasesInput = $state('');
+	let selectedAliases = $state<string[]>([]);
 	let err = $state<string | null>(null);
 	let connected = $state(false);
 	let reconnectInSec = $state<number | null>(null);
@@ -57,6 +58,27 @@
 		return 'default';
 	}
 
+	function parseAliases(raw: string | null): string[] {
+		if (!raw) return [];
+		const out = raw
+			.split(',')
+			.map((s) => s.trim())
+			.filter(Boolean);
+		return Array.from(new Set(out)).sort();
+	}
+
+	function aliasesLabel(): string {
+		if (selectedAliases.length === 0) return 'Все ноды';
+		if (selectedAliases.length <= 3) return selectedAliases.join(', ');
+		return `${selectedAliases.slice(0, 3).join(', ')} +${selectedAliases.length - 3}`;
+	}
+
+	function toggleAlias(a: string) {
+		if (!a) return;
+		const has = selectedAliases.includes(a);
+		selectedAliases = has ? selectedAliases.filter((x) => x !== a) : [...selectedAliases, a].sort();
+	}
+
 	function normIncident(v: unknown): IncidentItem | null {
 		if (!v || typeof v !== 'object') return null;
 		const x = v as Record<string, unknown>;
@@ -148,7 +170,8 @@
 		closeStream();
 		clearReconnectTimer();
 		err = null;
-		const url = liveEventsUrl({ aliases: aliases || undefined });
+		const aliasesParam = selectedAliases.length ? selectedAliases.join(',') : undefined;
+		const url = liveEventsUrl({ aliases: aliasesParam });
 		const next = new EventSource(url);
 		next.onopen = () => {
 			connected = true;
@@ -192,8 +215,7 @@
 
 	async function applyControls() {
 		const q = new URLSearchParams(page.url.searchParams);
-		const normalizedAliases = aliasesInput.trim();
+		if (selectedAliases.length > 0) q.set('aliases', selectedAliases.join(','));
-		if (normalizedAliases) q.set('aliases', normalizedAliases);
 		else q.delete('aliases');
 		const qs = q.toString();
 		await goto(`${page.url.pathname}${qs ? `?${qs}` : ''}`, {
@@ -207,8 +229,7 @@
 	$effect(() => {
 		queryKey;
 		if (typeof window === 'undefined') return;
-		aliases = page.url.searchParams.get('aliases')?.trim() ?? '';
+		selectedAliases = parseAliases(page.url.searchParams.get('aliases'));
-		aliasesInput = aliases;
 		connectStream();
 	});
 
@@ -218,6 +239,19 @@
 	let isStale = $derived.by(() => staleSeconds == null || staleSeconds > 12);
 
 	onMount(() => {
+		void (async () => {
+			try {
+				const env = await fetchAggSummary({ top_n: 10 });
+				const aliases = (env.data.servers ?? [])
+					.map((s) => s.alias)
+					.filter((a): a is string => typeof a === 'string' && a.length > 0)
+					.sort();
+				availableAliases = aliases;
+				selectedAliases = selectedAliases.filter((a) => aliases.includes(a));
+			} catch {
+				availableAliases = [];
+			}
+		})();
 		staleTimer = setInterval(() => {
 			nowMs = Date.now();
 		}, 1000);
@@ -249,15 +283,31 @@
 </div>
 
 <div class="mb-4 flex flex-wrap items-end gap-2">
-	<label class="text-xs text-muted-foreground">
+	<details class="rounded-md border bg-background p-2">
-		Aliases
+		<summary class="cursor-pointer select-none text-sm">
+			<span class="text-xs text-muted-foreground">Aliases</span>
+			<span class="ml-2 font-medium">{aliasesLabel()}</span>
+		</summary>
+		<div class="mt-2 max-h-48 overflow-auto pr-1">
+			{#if availableAliases.length === 0}
+				<div class="px-2 py-1 text-xs text-muted-foreground">Список нод не загружен</div>
+			{:else}
+				<div class="flex flex-col gap-1">
+					{#each availableAliases as a (a)}
+						<label class="flex cursor-pointer items-center gap-2 rounded px-2 py-1 hover:bg-accent/50">
 							<input
-			type="text"
+								type="checkbox"
-			class="mt-1 h-9 w-56 rounded-md border bg-background px-2 text-sm"
+								class="rounded"
-			bind:value={aliasesInput}
+								checked={selectedAliases.includes(a)}
-			placeholder="node-a,node-b"
+								onchange={() => toggleAlias(a)}
 							/>
+							<span class="text-sm">{a}</span>
 						</label>
+					{/each}
+				</div>
+			{/if}
+		</div>
+	</details>
 	<Button variant="outline" size="sm" onclick={() => void applyControls()}>
 		Apply
 	</Button>