[skip ci] Initial commit — CodexBar Mobile Expo app

hooks/useClaudeUsage.ts

@@ -0,0 +1,82 @@
+import { useState, useCallback, useEffect } from "react";
+import { fetchClaudeOrgs, fetchClaudeUsage } from "@/lib/api/claudeApi";
+import {
+  loadClaudeSessionKey,
+  saveClaudeSessionKey,
+  clearClaudeSessionKey,
+} from "@/lib/storage";
+import type { ClaudeUsageResponse } from "@/types/claude";
+
+type Status = "idle" | "loading" | "success" | "error";
+
+export function useClaudeUsage() {
+  const [sessionKey, setSessionKey] = useState<string | null>(null);
+  const [pendingKey, setPendingKey] = useState("");
+  const [usage, setUsage] = useState<ClaudeUsageResponse | null>(null);
+  const [status, setStatus] = useState<Status>("idle");
+  const [error, setError] = useState<string | null>(null);
+
+  useEffect(() => {
+    loadClaudeSessionKey().then((stored) => {
+      if (stored) setSessionKey(stored);
+    });
+  }, []);
+
+  const saveKey = useCallback(async () => {
+    const trimmed = pendingKey.trim();
+    if (!trimmed.startsWith("sk-ant-")) {
+      setError("Session key must start with sk-ant-");
+      return;
+    }
+    await saveClaudeSessionKey(trimmed);
+    setSessionKey(trimmed);
+    setPendingKey("");
+    setError(null);
+  }, [pendingKey]);
+
+  const refresh = useCallback(async () => {
+    if (!sessionKey) return;
+    setStatus("loading");
+    setError(null);
+    try {
+      const orgs = await fetchClaudeOrgs(sessionKey);
+      if (!orgs.length) throw new Error("NO_ORGS_FOUND");
+      const orgUuid = orgs[0].uuid;
+      const data = await fetchClaudeUsage(sessionKey, orgUuid);
+      setUsage(data);
+      setStatus("success");
+    } catch (e: unknown) {
+      const msg = e instanceof Error ? e.message : "UNKNOWN_ERROR";
+      setError(msg);
+      setStatus("error");
+      if (msg === "TOKEN_EXPIRED") {
+        await clearClaudeSessionKey();
+        setSessionKey(null);
+      }
+    }
+  }, [sessionKey]);
+
+  useEffect(() => {
+    if (sessionKey) void refresh();
+  }, [sessionKey]);
+
+  const clearKey = useCallback(async () => {
+    await clearClaudeSessionKey();
+    setSessionKey(null);
+    setUsage(null);
+    setStatus("idle");
+    setError(null);
+  }, []);
+
+  return {
+    sessionKey,
+    pendingKey,
+    setPendingKey,
+    usage,
+    status,
+    error,
+    saveKey,
+    refresh,
+    clearKey,
+  };
+}