/**
 * @file server-s3-quota.test.js
 * @description S3 plan, P4: plan quota per member home. `quotas({home})`
 * reads Claude, Codex, Cursor, Grok, Kimi Code and OpenCode Go from that
 * Linux account's home only — never the host's logins, never agy — and only
 * files the member owns (review fix F3: a FIFO or another account's file is
 * not read). `GET /api/pricing/quota` gives a developer or an analyst their
 * OWN account's quota, an admin the host's. A fake passwd (mia, bob = this
 * test's uid) and server.conf make them provisioned members.
 * @author Nguyễn Ngọc Trí Vĩ <vinnt@smartgift.vn>
 */

const { describe, it, before, after } = require("node:test");
const assert = require("node:assert/strict");
const path = require("node:path");
const fs = require("node:fs");
const os = require("node:os");

const TMP = fs.realpathSync(fs.mkdtempSync(path.join(os.tmpdir(), "server-s3-quota-")));
const USERS = path.join(TMP, "users");
const MIA = path.join(USERS, "mia");
const BOB = path.join(USERS, "bob");
const HOST = path.join(TMP, "host");
process.env.DASHBOARD_DB_PATH = path.join(TMP, "dashboard.db");
process.env.DASHBOARD_LIVENESS_PROBE = "0";
process.env.LANES_ROOT = path.join(TMP, "lanes");
process.env.AGENTHUB_SERVER_CONF = path.join(TMP, "server.conf");
process.env.AGENTHUB_PASSWD = path.join(TMP, "passwd");
process.env.AGENTHUB_AGY_USAGE = "0";
// The host's own logins, every one a different token than a member's.
process.env.CLAUDE_HOME = path.join(HOST, ".claude");
process.env.CODEX_HOME = path.join(HOST, ".codex");
process.env.XDG_CONFIG_HOME = path.join(HOST, ".config");
process.env.AGENTHUB_CURSOR_DIR = path.join(HOST, ".cursor");
process.env.GROK_HOME = path.join(HOST, ".grok");
process.env.KIMI_CODE_HOME = path.join(HOST, ".kimi-code");
process.env.XDG_DATA_HOME = path.join(HOST, ".local", "share");

const { createApp, startServer } = require("../index");
const auth = require("../lib/auth");
const linux = require("../lib/linux-accounts");
const runAs = require("../lib/run-as");
const { quotas, __resetCache } = require("../lib/quota");
const { Database } = require("../db");

const LATER = Date.now() + 3600_000;
const write = (file, body) => {
  fs.mkdirSync(path.dirname(file), { recursive: true });
  fs.writeFileSync(file, typeof body === "string" ? body : JSON.stringify(body));
};
const jwt = (claims) => `h.${Buffer.from(JSON.stringify(claims)).toString("base64url")}.s`;

/** Every login a tool keeps under `home`, each token named `<who>-<tool>`. */
function seedHome(home, who, { codexPercent }) {
  write(path.join(home, ".claude", ".credentials.json"), {
    claudeAiOauth: { accessToken: `${who}-claude`, expiresAt: LATER, subscriptionType: "pro" },
  });
  write(path.join(home, ".claude.json"), { oauthAccount: { emailAddress: `${who}@x.y` } });
  write(path.join(home, ".codex", "auth.json"), {
    tokens: {
      id_token: jwt({ email: `${who}@codex` }),
      access_token: jwt({ exp: Math.floor(LATER / 1000) }),
    },
  });
  write(
    path.join(home, ".codex", "sessions", "2026", "10", "09", `rollout-${who}.jsonl`),
    `${JSON.stringify({
      payload: {
        rate_limits: {
          primary: { used_percent: codexPercent, window_minutes: 300, resets_at: 4102444800 },
        },
      },
    })}\n`
  );
  write(path.join(home, ".config", "cursor", "auth.json"), { accessToken: `${who}-cursor` });
  write(path.join(home, ".cursor", "cli-config.json"), {
    authInfo: { email: `${who}@cursor`, userId: "u1" },
  });
  write(path.join(home, ".grok", "auth.json"), {
    "https://auth.x.ai": { key: `${who}-grok`, expires_at: new Date(LATER).toISOString() },
  });
  write(path.join(home, ".kimi-code", "credentials", "kimi-code.json"), {
    access_token: `${who}-kimi`,
    expires_at: Math.floor(LATER / 1000),
  });
}

/** OpenCode 2 keeps its key in `opencode.db` (WAL), not `auth.json`. */
function seedOpenCodeDb(home, key) {
  const dir = path.join(home, ".local", "share", "opencode");
  fs.mkdirSync(dir, { recursive: true });
  const db = new Database(path.join(dir, "opencode.db"));
  db.pragma?.("journal_mode = WAL");
  db.exec(
    "CREATE TABLE credential (integration_id TEXT, value TEXT, active INT, time_created INT)"
  );
  db.prepare("INSERT INTO credential VALUES ('opencode-go', ?, 1, 1)").run(JSON.stringify({ key }));
  db.close();
}

let asked = [];
const realFetch = global.fetch;
global.fetch = async (url, opts = {}) => {
  if (String(url).startsWith("http://127.0.0.1")) return realFetch(url, opts);
  const h = opts.headers || {};
  asked.push(h.Authorization || h.Cookie || "");
  const u = String(url);
  const body = u.includes("anthropic.com")
    ? u.endsWith("/profile")
      ? { account: { email: "owner@x.y" } }
      : { five_hour: { utilization: 10, resets_at: null } }
    : {};
  return { ok: true, status: 200, json: async () => body };
};

let server;
let BASE;
const setUid = (uid) => {
  fs.writeFileSync(
    process.env.AGENTHUB_PASSWD,
    `ah-mia:x:${uid}:${uid}::/:/bin/sh\nah-bob:x:${uid}:${uid}::/:/bin/sh\n`
  );
  runAs.__resetCache();
};

before(async () => {
  seedHome(HOST, "host", { codexPercent: 77 });
  write(path.join(HOST, ".local", "share", "opencode", "auth.json"), {
    "opencode-go": { type: "api", key: "host-opencode" },
  });
  seedHome(MIA, "mia", { codexPercent: 21 });
  seedOpenCodeDb(MIA, "mia-opencode");
  setUid(process.getuid());
  fs.writeFileSync(
    process.env.AGENTHUB_SERVER_CONF,
    `HOST_USER=h\nHOST_UID=1\nUSERS_ROOT=${USERS}\nPORT=4820\n`
  );
  fs.mkdirSync(BOB, { recursive: true });
  linux.__resetConfCache();
  linux.__setRunImpl(() => "ok");
  server = await startServer(createApp(), 0);
  BASE = `http://127.0.0.1:${server.address().port}`;
  process.env.AGENTHUB_MODE = "server";
  await auth.createUser("boss", "admin-pass-1", "admin");
  await auth.createUser("mia", "member-pass-1", "developer");
  await auth.createUser("bob", "analyst-pass-1", "analyst");
  await auth.createUser("carl", "member-pass-2", "developer"); // never provisioned
});

after(() => {
  delete process.env.AGENTHUB_MODE;
  global.fetch = realFetch;
  server?.close();
  fs.rmSync(TMP, { recursive: true, force: true });
});

describe("quotas({home}) reads a member's own logins", () => {
  it("reads every tool from that home, never the host's, never agy", async () => {
    __resetCache();
    asked = [];
    const { tools } = await quotas({ home: MIA });
    assert.deepEqual(tools.map((t) => t.id).sort(), [
      "claude",
      "codex",
      "cursor",
      "grok",
      "kimi",
      "opencode",
    ]);
    const codex = tools.find((t) => t.id === "codex");
    assert.equal(codex.account, "mia@codex");
    assert.equal(codex.windows[0].usedPercent, 21);
    assert.equal(tools.find((t) => t.id === "cursor").account, "mia@cursor");
    assert.ok(asked.length >= 6, asked.join(","));
    assert.ok(
      asked.every((a) => a.includes("mia-")),
      `only mia's tokens leave: ${asked.join(",")}`
    );
    assert.ok(
      asked.some((a) => a.includes("mia-opencode")),
      "OpenCode 2's db is read"
    );
    assert.ok(tools.every((t) => t.label === undefined || t.label === null));
  });

  it("leaves the host's own reading unchanged", async () => {
    __resetCache();
    asked = [];
    const { tools } = await quotas();
    assert.equal(tools.find((t) => t.id === "codex").windows[0].usedPercent, 77);
    assert.ok(
      asked.every((a) => a.includes("host-")),
      asked.join(",")
    );
  });

  it("reads no file the member does not own, and never blocks on a FIFO", async () => {
    fs.mkdirSync(path.join(BOB, ".grok"), { recursive: true });
    require("node:child_process").execFileSync("mkfifo", [path.join(BOB, ".grok", "auth.json")]);
    __resetCache();
    assert.deepEqual((await quotas({ home: BOB })).tools, []);
    // mia's files now belong to another uid: none is read.
    setUid(5001);
    try {
      __resetCache();
      asked = [];
      assert.deepEqual((await quotas({ home: MIA })).tools, []);
      assert.deepEqual(asked, []);
    } finally {
      setUid(process.getuid());
    }
  });
});

describe("GET /api/pricing/quota is the caller's own", () => {
  const as = async (username, password) => {
    const login = await fetch(`${BASE}/api/auth/login`, {
      method: "POST",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify({ username, password }),
    });
    const cookie = login.headers.get("set-cookie").split(";")[0];
    __resetCache();
    const res = await fetch(`${BASE}/api/pricing/quota`, { headers: { cookie } });
    assert.equal(res.status, 200);
    return (await res.json()).tools;
  };
  const codexPct = (tools) => tools.find((t) => t.id === "codex")?.windows[0].usedPercent;

  it("a developer gets their own home's, with their own account shown", async () => {
    const tools = await as("mia", "member-pass-1");
    assert.equal(codexPct(tools), 21);
    assert.equal(tools.find((t) => t.id === "codex").account, "mia@codex");
  });

  it("an analyst gets their own, never the host's", async () => {
    assert.deepEqual(await as("bob", "analyst-pass-1"), []);
  });

  it("a member with no provisioned account gets nothing", async () => {
    assert.deepEqual(await as("carl", "member-pass-2"), []);
  });

  it("an admin gets the host's", async () => {
    assert.equal(codexPct(await as("boss", "admin-pass-1")), 77);
  });
});