refactor(tui): split handlers

src/tui/tui-status-summary.ts

@@ -0,0 +1,85 @@
+import { formatAge } from "../infra/channel-summary.js";
+import { formatTokenCount } from "../utils/usage-format.js";
+import { formatContextUsageLine } from "./tui-formatters.js";
+import type { GatewayStatusSummary } from "./tui-types.js";
+
+export function formatStatusSummary(summary: GatewayStatusSummary) {
+  const lines: string[] = [];
+  lines.push("Gateway status");
+
+  if (!summary.linkProvider) {
+    lines.push("Link provider: unknown");
+  } else {
+    const linkLabel = summary.linkProvider.label ?? "Link provider";
+    const linked = summary.linkProvider.linked === true;
+    const authAge =
+      linked && typeof summary.linkProvider.authAgeMs === "number"
+        ? ` (last refreshed ${formatAge(summary.linkProvider.authAgeMs)})`
+        : "";
+    lines.push(`${linkLabel}: ${linked ? "linked" : "not linked"}${authAge}`);
+  }
+
+  const providerSummary = Array.isArray(summary.providerSummary)
+    ? summary.providerSummary
+    : [];
+  if (providerSummary.length > 0) {
+    lines.push("");
+    lines.push("System:");
+    for (const line of providerSummary) {
+      lines.push(`  ${line}`);
+    }
+  }
+
+  if (typeof summary.heartbeatSeconds === "number") {
+    lines.push("");
+    lines.push(`Heartbeat: ${summary.heartbeatSeconds}s`);
+  }
+
+  const sessionPath = summary.sessions?.path;
+  if (sessionPath) lines.push(`Session store: ${sessionPath}`);
+
+  const defaults = summary.sessions?.defaults;
+  const defaultModel = defaults?.model ?? "unknown";
+  const defaultCtx =
+    typeof defaults?.contextTokens === "number"
+      ? ` (${formatTokenCount(defaults.contextTokens)} ctx)`
+      : "";
+  lines.push(`Default model: ${defaultModel}${defaultCtx}`);
+
+  const sessionCount = summary.sessions?.count ?? 0;
+  lines.push(`Active sessions: ${sessionCount}`);
+
+  const recent = Array.isArray(summary.sessions?.recent)
+    ? summary.sessions?.recent
+    : [];
+  if (recent.length > 0) {
+    lines.push("Recent sessions:");
+    for (const entry of recent) {
+      const ageLabel =
+        typeof entry.age === "number" ? formatAge(entry.age) : "no activity";
+      const model = entry.model ?? "unknown";
+      const usage = formatContextUsageLine({
+        total: entry.totalTokens ?? null,
+        context: entry.contextTokens ?? null,
+        remaining: entry.remainingTokens ?? null,
+        percent: entry.percentUsed ?? null,
+      });
+      const flags = entry.flags?.length
+        ? ` | flags: ${entry.flags.join(", ")}`
+        : "";
+      lines.push(
+        `- ${entry.key}${entry.kind ? ` [${entry.kind}]` : ""} | ${ageLabel} | model ${model} | ${usage}${flags}`,
+      );
+    }
+  }
+
+  const queued = Array.isArray(summary.queuedSystemEvents)
+    ? summary.queuedSystemEvents
+    : [];
+  if (queued.length > 0) {
+    const preview = queued.slice(0, 3).join(" | ");
+    lines.push(`Queued system events (${queued.length}): ${preview}`);
+  }
+
+  return lines;
+}