/**
 * @file Tests for server/lib/codex-cli.js — the `codex mcp`/`codex plugin`
 * wrapper that backs the Codex config panel's MCP-server and plugin
 * management. Uses a fake `codex` script on PATH (the fixture style
 * server/__tests__/cc-plugin-cli.test.js uses) rather than mocking
 * child_process, and pins the exact argv each operation builds — that argv
 * IS the security boundary.
 * @author Nguyễn Ngọc Trí Vĩ <vinnt@smartgift.vn>
 */
const { describe, it, after } = require("node:test");
const assert = require("node:assert/strict");
const fs = require("node:fs");
const os = require("node:os");
const path = require("node:path");

const ROOT = fs.mkdtempSync(path.join(os.tmpdir(), "agenthub-codexcli-"));
const cli = require("../lib/codex-cli");

/**
 * Put a fake `codex` on PATH. The default body echoes the argv, one element
 * per line, so a test can assert the exact array that was spawned.
 */
function stubCodex(scriptBody = 'for a in "$@"; do echo "$a"; done') {
  const bin = path.join(ROOT, `bin-${process.hrtime.bigint()}`);
  fs.mkdirSync(bin, { recursive: true });
  const file = path.join(bin, "codex");
  fs.writeFileSync(file, `#!/usr/bin/env bash\n${scriptBody}\n`);
  fs.chmodSync(file, 0o755);
  const originalPath = process.env.PATH;
  process.env.PATH = `${bin}${path.delimiter}${originalPath}`;
  return () => {
    process.env.PATH = originalPath;
  };
}

/** PATH with no `codex` on it at all. */
function stubMissingCodex() {
  const empty = path.join(ROOT, `empty-${process.hrtime.bigint()}`);
  fs.mkdirSync(empty, { recursive: true });
  const originalPath = process.env.PATH;
  process.env.PATH = empty;
  return () => {
    process.env.PATH = originalPath;
  };
}

const argvOf = (result) => result.stdout.trim().split("\n");

after(() => fs.rmSync(ROOT, { recursive: true, force: true, maxRetries: 5 }));

describe("codex-cli argument validation", () => {
  it("refuses a name that could be read as a flag or a path", async () => {
    await assert.rejects(() => cli.mcpRemove("--force"), /name/i);
    await assert.rejects(() => cli.mcpRemove("../../etc"), /name/i);
    await assert.rejects(() => cli.pluginRemove("--force"), /spec/i);
    await assert.rejects(() => cli.pluginRemove("../../etc"), /spec/i);
    await assert.rejects(() => cli.marketplaceRemove("--force"), /name/i);
    await assert.rejects(() => cli.mcpAdd({ name: "--force", command: "node" }), /name/i);
  });

  it("accepts a plain identifier as a name", () => {
    assert.match("docs", cli.NAME_RE);
    assert.doesNotMatch("--force", cli.NAME_RE);
    assert.doesNotMatch("../../etc", cli.NAME_RE);
  });

  it("accepts <name> and <name>@<marketplace> plugin specs only", () => {
    assert.equal(cli.assertPluginSpec("agenthub"), "agenthub");
    assert.equal(cli.assertPluginSpec("agenthub@sg"), "agenthub@sg");
    for (const bad of ["../agenthub", "agenthub agenthub", "@sg", "-agenthub", "a/b"]) {
      assert.throws(() => cli.assertPluginSpec(bad), undefined, `accepted ${bad}`);
    }
  });

  it("accepts only http(s) URLs (mcpAdd's --url form)", () => {
    assert.equal(cli.assertUrl("https://example.com/mp.git", "url"), "https://example.com/mp.git");
    for (const bad of ["ssh://example.com/mp.git", "not a url", "file:///tmp/x"]) {
      assert.throws(() => cli.assertUrl(bad, "url"), /http\(s\)/, `accepted ${bad}`);
    }
    // rejected earlier, by the shared leading-dash guard, not the URL check
    assert.throws(() => cli.assertUrl("--force", "url"), /may not start with/);
  });

  it("marketplaceAdd accepts the source forms `codex plugin marketplace add` actually takes", async () => {
    // Not assertUrl: `codex plugin marketplace add <SOURCE>` also takes
    // owner/repo and a local path, which a bare http(s)-only check rejected.
    const restore = stubCodex();
    try {
      assert.deepEqual(await cli.marketplaceAdd("openai/codex").then(argvOf), [
        "plugin",
        "marketplace",
        "add",
        "openai/codex",
      ]);
      assert.deepEqual(await cli.marketplaceAdd("/abs/local/path").then(argvOf), [
        "plugin",
        "marketplace",
        "add",
        "/abs/local/path",
      ]);
    } finally {
      restore();
    }
    // ssh remotes are deliberately out of scope, same as cc-plugin-cli's
    // marketplace source guard — no credential/host-key story for them yet.
    await assert.rejects(() => cli.marketplaceAdd("git@github.com:owner/repo.git"), /source/);
    await assert.rejects(() => cli.marketplaceAdd("../escape"), /source/);
  });

  it("rejects mcpAdd with neither or both of url/command", async () => {
    await assert.rejects(() => cli.mcpAdd({ name: "docs" }), /requires either/);
    await assert.rejects(
      () => cli.mcpAdd({ name: "docs", url: "https://x", command: "node" }),
      /either url or command, not both/
    );
  });

  it("rejects env together with url — --env is invalid on the url form", async () => {
    await assert.rejects(
      () => cli.mcpAdd({ name: "docs", url: "https://x", env: { A: "1" } }),
      /stdio-only/
    );
  });

  it("rejects an env key that is not a valid identifier", async () => {
    await assert.rejects(
      () => cli.mcpAdd({ name: "docs", command: "node", env: { "1bad": "1" } }),
      /identifier/
    );
  });
});

describe("codex-cli argv construction", () => {
  it("passes the server name as one argv entry, never through a shell", async () => {
    const restore = stubCodex();
    try {
      const result = await cli.mcpAdd({ name: "docs", command: "node", args: ["server.js"] });
      assert.deepEqual(argvOf(result), ["mcp", "add", "docs", "--", "node", "server.js"]);
    } finally {
      restore();
    }
  });

  it("puts --env flags between NAME and -- for a stdio server", async () => {
    const restore = stubCodex();
    try {
      const result = await cli.mcpAdd({
        name: "docs",
        command: "node",
        args: ["server.js"],
        env: { API_KEY: "secret", MODE: "prod" },
      });
      assert.deepEqual(argvOf(result), [
        "mcp",
        "add",
        "docs",
        "--env",
        "API_KEY=secret",
        "--env",
        "MODE=prod",
        "--",
        "node",
        "server.js",
      ]);
    } finally {
      restore();
    }
  });

  it("builds the --url form with an optional --bearer-token-env-var", async () => {
    const restore = stubCodex();
    try {
      const result = await cli.mcpAdd({
        name: "docs",
        url: "https://example.com/mcp",
        bearerTokenEnvVar: "DOCS_TOKEN",
      });
      assert.deepEqual(argvOf(result), [
        "mcp",
        "add",
        "docs",
        "--bearer-token-env-var",
        "DOCS_TOKEN",
        "--url",
        "https://example.com/mcp",
      ]);
    } finally {
      restore();
    }
  });

  it("builds mcp list / remove argvs", async () => {
    const restore = stubCodex();
    try {
      assert.deepEqual(argvOf(await cli.mcpList()), ["mcp", "list", "--json"]);
      assert.deepEqual(argvOf(await cli.mcpRemove("docs")), ["mcp", "remove", "docs"]);
    } finally {
      restore();
    }
  });

  it("builds plugin list / add / remove argvs", async () => {
    const restore = stubCodex();
    try {
      assert.deepEqual(argvOf(await cli.pluginList()), ["plugin", "list", "--json"]);
      assert.deepEqual(argvOf(await cli.pluginAdd("demo@sg")), ["plugin", "add", "demo@sg"]);
      assert.deepEqual(argvOf(await cli.pluginRemove("demo")), ["plugin", "remove", "demo"]);
      // `plugin list` reports marketplace-scoped plugins as `<name>@<marketplace>`,
      // and `plugin add` takes that form — so remove has to accept it back.
      assert.deepEqual(argvOf(await cli.pluginRemove("demo@sg")), ["plugin", "remove", "demo@sg"]);
    } finally {
      restore();
    }
  });

  it("builds marketplace list / add / remove argvs, nested under plugin", async () => {
    const restore = stubCodex();
    try {
      assert.deepEqual(argvOf(await cli.marketplaceList()), [
        "plugin",
        "marketplace",
        "list",
        "--json",
      ]);
      assert.deepEqual(argvOf(await cli.marketplaceAdd("https://example.com/mp.git")), [
        "plugin",
        "marketplace",
        "add",
        "https://example.com/mp.git",
      ]);
      assert.deepEqual(argvOf(await cli.marketplaceRemove("sg")), [
        "plugin",
        "marketplace",
        "remove",
        "sg",
      ]);
    } finally {
      restore();
    }
  });

  it("never lets a rejected name reach a shell", async () => {
    // If the value were interpolated into a shell string this would create
    // the file; the NAME_RE guard rejects it before any spawn happens.
    const canary = path.join(ROOT, "pwned");
    const restore = stubCodex();
    try {
      await assert.rejects(() => cli.mcpRemove("docs; touch " + canary), /name/i);
      assert.equal(fs.existsSync(canary), false);
    } finally {
      restore();
    }
  });
});

describe("codex-cli run outcomes", () => {
  it("surfaces a non-zero exit as ok:false with stderr kept", async () => {
    const restore = stubCodex('echo "no such marketplace" >&2\nexit 2');
    try {
      const res = await cli.marketplaceRemove("nope");
      assert.equal(res.ok, false);
      assert.equal(res.code, 2);
      assert.match(res.stderr, /no such marketplace/);
    } finally {
      restore();
    }
  });

  it("throws a clear error when the codex CLI is not on PATH", async () => {
    const restore = stubMissingCodex();
    try {
      await assert.rejects(
        () => cli.mcpList(),
        (err) => {
          assert.equal(err.code, "ECLINOTFOUND");
          assert.match(err.message, /not found on PATH/);
          return true;
        }
      );
    } finally {
      restore();
    }
  });

  it("parses JSON output into `data`", async () => {
    const restore = stubCodex(`cat <<'JSON'\n{"servers":[{"name":"docs"}]}\nJSON`);
    try {
      const res = await cli.mcpList();
      assert.equal(res.ok, true);
      assert.deepEqual(res.data, { servers: [{ name: "docs" }] });
    } finally {
      restore();
    }
  });

  it("unwraps `codex plugin list --json`'s {installed, available} object into a bare array", async () => {
    // Real codex-cli 0.149.0 shape — an object, unlike `mcp list`'s array.
    const restore = stubCodex(
      `cat <<'JSON'\n{"installed":[{"name":"demo"}],"available":[{"name":"other"}]}\nJSON`
    );
    try {
      const res = await cli.pluginList();
      assert.equal(res.ok, true);
      assert.deepEqual(res.data, [{ name: "demo" }]);
    } finally {
      restore();
    }
  });

  it("unwraps `codex plugin marketplace list --json`'s {marketplaces} object into a bare array", async () => {
    const restore = stubCodex(`cat <<'JSON'\n{"marketplaces":[{"name":"sg"}]}\nJSON`);
    try {
      const res = await cli.marketplaceList();
      assert.equal(res.ok, true);
      assert.deepEqual(res.data, [{ name: "sg" }]);
    } finally {
      restore();
    }
  });

  it("leaves `data` undefined when stdout is not JSON", async () => {
    const restore = stubCodex('echo "removed docs"');
    try {
      const res = await cli.mcpRemove("docs");
      assert.equal(res.ok, true);
      assert.equal(res.data, undefined);
    } finally {
      restore();
    }
  });

  it("serializes mutating calls so two clicks cannot interleave", async () => {
    const log = path.join(ROOT, `order-${process.hrtime.bigint()}.txt`);
    const restore = stubCodex(`echo "start $2" >> ${log}\nsleep 0.2\necho "end $2" >> ${log}`);
    try {
      await Promise.all([cli.mcpRemove("first"), cli.mcpRemove("second")]);
      const lines = fs.readFileSync(log, "utf8").trim().split("\n");
      assert.equal(lines[0].replace("start ", ""), lines[1].replace("end ", ""));
      assert.equal(lines[2].replace("start ", ""), lines[3].replace("end ", ""));
    } finally {
      restore();
    }
  });
});