/**
 * @file Tests for server/lib/cc-plugin-cli.js — the `claude plugin …` wrapper
 * that backs plugin/marketplace management from the dashboard. Uses a real
 * fake `claude` script on PATH (the fixture style server/__tests__/gh.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-ccplugin-"));
const cli = require("../lib/cc-plugin-cli");

/**
 * Put a fake `claude` on PATH. The default body echoes the argv, one element
 * per line, so a test can assert the exact array that was spawned.
 */
function stubClaude(scriptBody = 'for a in "$@"; do echo "$a"; done') {
  const bin = path.join(ROOT, `bin-${process.hrtime.bigint()}`);
  fs.mkdirSync(bin, { recursive: true });
  const file = path.join(bin, "claude");
  fs.writeFileSync(file, `#!/usr/bin/env bash\n${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 `claude` on it at all. */
function stubMissingClaude() {
  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("cc-plugin-cli argument validation", () => {
  it("accepts owner/repo, http(s) URLs and absolute paths as a source", () => {
    assert.equal(cli.assertSource("anthropics/claude-plugins"), "anthropics/claude-plugins");
    assert.equal(cli.assertSource("https://github.com/a/b"), "https://github.com/a/b");
    assert.equal(cli.assertSource("/opt/marketplace"), "/opt/marketplace");
  });

  it("rejects sources that are neither repo, URL nor absolute path", () => {
    for (const bad of ["./relative", "git@github.com:a/b.git", "file:///tmp/x", "a/b/c/d e"]) {
      assert.throws(() => cli.assertSource(bad), /source must be/, `accepted ${bad}`);
    }
  });

  it("rejects a source that could become a flag or escape upward", () => {
    assert.throws(() => cli.assertSource("--scope"), /may not start with/);
    assert.throws(() => cli.assertSource("/opt/../etc"), /'\.\.'/);
  });

  it("rejects control characters and empty values", () => {
    assert.throws(() => cli.assertSource("a/b\nrm -rf /"), /control characters/);
    assert.throws(() => cli.assertSource(""), /required/);
    assert.throws(() => cli.assertSource(null), /required/);
  });

  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@bad/repo",
      "../agenthub",
      "agenthub agenthub",
      "@sg",
      "-agenthub",
    ]) {
      assert.throws(() => cli.assertPluginSpec(bad), undefined, `accepted ${bad}`);
    }
  });

  it("rejects marketplace names that are not plain identifiers", () => {
    assert.equal(cli.assertMarketplaceName("sg"), "sg");
    assert.throws(() => cli.assertMarketplaceName("sg/other"), /valid identifier/);
  });

  it("defaults the CLI scope to user and rejects unknown scopes", () => {
    assert.equal(cli.assertCliScope(undefined), "user");
    assert.equal(cli.assertCliScope("local"), "local");
    // `project-local` is the dashboard's settings vocabulary, not the CLI's.
    assert.throws(() => cli.assertCliScope("project-local"), /scope must be one of/);
  });
});

describe("cc-plugin-cli argv construction", () => {
  it("builds the marketplace add argv with an explicit scope", async () => {
    const restore = stubClaude();
    try {
      const result = await cli.marketplaceAdd({ source: "owner/repo" });
      assert.deepEqual(argvOf(result), [
        "plugin",
        "marketplace",
        "add",
        "owner/repo",
        "--scope",
        "user",
      ]);
    } finally {
      restore();
    }
  });

  it("retries without -y on a Claude Code too old to know the flag", async () => {
    // Older CLIs answer `error: unknown option '-y'` and exit 1; they also
    // never prompt, so the same command without the flag is the right retry.
    const restore = stubClaude(
      'for a in "$@"; do [ "$a" = "-y" ] && { echo "error: unknown option \'-y\'" >&2; exit 1; }; done\n' +
        'for a in "$@"; do echo "$a"; done'
    );
    try {
      const r = await cli.pluginUpdate({ spec: "demo@m" });
      assert.equal(r.ok, true);
      assert.deepEqual(argvOf(r), ["plugin", "update", "demo@m"]);
    } finally {
      restore();
    }
  });

  it("passes -y on install so a non-TTY run never waits for a prompt", async () => {
    const restore = stubClaude();
    try {
      const result = await cli.pluginInstall({ spec: "demo@tmpmk", scope: "project" });
      assert.deepEqual(argvOf(result), [
        "plugin",
        "install",
        "demo@tmpmk",
        "--scope",
        "project",
        "-y",
      ]);
    } finally {
      restore();
    }
  });

  it("builds uninstall / enable / disable / update argvs", async () => {
    const restore = stubClaude();
    try {
      assert.deepEqual(argvOf(await cli.pluginUninstall({ spec: "demo@m" })), [
        "plugin",
        "uninstall",
        "demo@m",
      ]);
      assert.deepEqual(argvOf(await cli.pluginEnable({ spec: "demo@m" })), [
        "plugin",
        "enable",
        "demo@m",
      ]);
      assert.deepEqual(argvOf(await cli.pluginDisable({ spec: "demo@m" })), [
        "plugin",
        "disable",
        "demo@m",
      ]);
      // `-y` is mandatory, not cosmetic: runClaude closes stdin, and the CLI
      // refuses to update without it whenever stdin is not a TTY.
      assert.deepEqual(argvOf(await cli.pluginUpdate({ spec: "demo@m" })), [
        "plugin",
        "update",
        "demo@m",
        "-y",
      ]);
      assert.deepEqual(argvOf(await cli.marketplaceRemove({ name: "m" })), [
        "plugin",
        "marketplace",
        "remove",
        "m",
      ]);
      assert.deepEqual(argvOf(await cli.marketplaceUpdate({ name: "m" })), [
        "plugin",
        "marketplace",
        "update",
        "m",
      ]);
    } finally {
      restore();
    }
  });

  it("never lets a source reach a shell", async () => {
    // If the value were interpolated into a shell string this would create the
    // file; through execFile's argv array it stays one literal argument.
    const canary = path.join(ROOT, "pwned");
    const restore = stubClaude();
    try {
      await assert.rejects(
        () => cli.marketplaceAdd({ source: `owner/repo; touch ${canary}` }),
        /source must be/
      );
      assert.equal(fs.existsSync(canary), false);
    } finally {
      restore();
    }
  });
});

describe("cc-plugin-cli CLAUDE_CONFIG_DIR pinning", () => {
  // N1: pinning CLAUDE_CONFIG_DIR unconditionally to getClaudeHome() made the
  // CLI write ~/.claude/.claude.json while cc-discovery reads ~/.claude.json
  // — a different file, so every default-install add/remove was inert. The
  // fix is to leave CLAUDE_CONFIG_DIR unset unless the operator explicitly
  // set CLAUDE_HOME; this is the env contract that would have caught it.
  const PRINT_ENV = "printf '%s\\n' \"CLAUDE_CONFIG_DIR=${CLAUDE_CONFIG_DIR-<unset>}\"";

  it("leaves CLAUDE_CONFIG_DIR unset when CLAUDE_HOME is not set", async () => {
    const originalHome = process.env.CLAUDE_HOME;
    delete process.env.CLAUDE_HOME;
    const restore = stubClaude(PRINT_ENV);
    try {
      const result = await cli.marketplaceUpdate({ name: "m" });
      assert.equal(result.stdout.trim(), "CLAUDE_CONFIG_DIR=<unset>");
    } finally {
      restore();
      if (originalHome !== undefined) process.env.CLAUDE_HOME = originalHome;
    }
  });

  it("pins CLAUDE_CONFIG_DIR to CLAUDE_HOME when the operator set it", async () => {
    const originalHome = process.env.CLAUDE_HOME;
    process.env.CLAUDE_HOME = "/tmp/some-other-claude-home";
    const restore = stubClaude(PRINT_ENV);
    try {
      const result = await cli.marketplaceUpdate({ name: "m" });
      assert.equal(result.stdout.trim(), "CLAUDE_CONFIG_DIR=/tmp/some-other-claude-home");
    } finally {
      restore();
      if (originalHome === undefined) delete process.env.CLAUDE_HOME;
      else process.env.CLAUDE_HOME = originalHome;
    }
  });

  // The two env tests above pin the env var each half of the pair depends
  // on. This pins the pair itself end to end: the file getClaudeJsonPath()
  // returns must be the file the CLI actually wrote — under BOTH an unset
  // and a set CLAUDE_HOME. A fake `claude` that writes `.claude.json`
  // exactly where the real binary does (verified against it: flat inside
  // CLAUDE_CONFIG_DIR when set, beside — NOT inside — $HOME when unset)
  // stands in for the real CLI; no real CLI or real $HOME/CLAUDE_HOME touched.
  const WRITE_CLAUDE_JSON = 'echo "{}" > "${CLAUDE_CONFIG_DIR:-$HOME}/.claude.json"';

  it("writes .claude.json exactly where getClaudeJsonPath() reads it, with CLAUDE_HOME unset", async () => {
    const cc = require("../lib/cc-discovery");
    const originalHome = process.env.HOME;
    const originalClaudeHome = process.env.CLAUDE_HOME;
    const fakeHome = fs.mkdtempSync(path.join(os.tmpdir(), "agenthub-fakehome-"));
    delete process.env.CLAUDE_HOME;
    process.env.HOME = fakeHome;
    const restore = stubClaude(WRITE_CLAUDE_JSON);
    try {
      await cli.marketplaceUpdate({ name: "m" });
      assert.equal(cc.getClaudeJsonPath(), path.join(fakeHome, ".claude.json"));
      assert.ok(fs.existsSync(cc.getClaudeJsonPath()), "the CLI's write landed where reads look");
    } finally {
      restore();
      process.env.HOME = originalHome;
      if (originalClaudeHome !== undefined) process.env.CLAUDE_HOME = originalClaudeHome;
      fs.rmSync(fakeHome, { recursive: true, force: true });
    }
  });

  it("writes .claude.json exactly where getClaudeJsonPath() reads it, with CLAUDE_HOME set", async () => {
    const cc = require("../lib/cc-discovery");
    const originalClaudeHome = process.env.CLAUDE_HOME;
    const fakeClaudeHome = fs.mkdtempSync(path.join(os.tmpdir(), "agenthub-fakeclaudehome-"));
    process.env.CLAUDE_HOME = fakeClaudeHome;
    const restore = stubClaude(WRITE_CLAUDE_JSON);
    try {
      await cli.marketplaceUpdate({ name: "m" });
      assert.equal(cc.getClaudeJsonPath(), path.join(fakeClaudeHome, ".claude.json"));
      assert.ok(fs.existsSync(cc.getClaudeJsonPath()), "the CLI's write landed where reads look");
    } finally {
      restore();
      if (originalClaudeHome === undefined) delete process.env.CLAUDE_HOME;
      else process.env.CLAUDE_HOME = originalClaudeHome;
      fs.rmSync(fakeClaudeHome, { recursive: true, force: true });
    }
  });
});

describe("cc-plugin-cli run outcomes", () => {
  it("reports a non-zero exit as ok:false instead of throwing", async () => {
    const restore = stubClaude('echo "✘ Failed to install plugin \\"nope\\"" >&2\nexit 1');
    try {
      const result = await cli.pluginInstall({ spec: "nope@m" });
      assert.equal(result.ok, false);
      assert.equal(result.code, 1);
      assert.match(cli.cliMessage(result), /Failed to install plugin/);
    } finally {
      restore();
    }
  });

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

  it("parses `plugin list --available --json`", async () => {
    const payload = JSON.stringify({
      installed: [{ id: "demo@m" }],
      available: [{ pluginId: "other@m", name: "other" }],
    });
    const restore = stubClaude(`cat <<'JSON'\n${payload}\nJSON`);
    try {
      const listed = await cli.listAvailable();
      assert.equal(listed.installed.length, 1);
      assert.equal(listed.available[0].pluginId, "other@m");
    } finally {
      restore();
    }
  });

  it("surfaces unparseable list output as an error", async () => {
    const restore = stubClaude("echo 'not json'");
    try {
      await assert.rejects(() => cli.listAvailable(), /could not parse/);
    } finally {
      restore();
    }
  });

  it("serializes mutating calls so two clicks cannot interleave", async () => {
    // Each run appends its marker around a sleep; interleaved runs would
    // produce "a1 b1 a2 b2" rather than two complete pairs.
    const log = path.join(ROOT, `order-${process.hrtime.bigint()}.txt`);
    const restore = stubClaude(`echo "start $3" >> ${log}\nsleep 0.2\necho "end $3" >> ${log}`);
    try {
      await Promise.all([
        cli.marketplaceUpdate({ name: "first" }),
        cli.marketplaceUpdate({ name: "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();
    }
  });
});