import subprocess
import sys
import tempfile
import unittest
from pathlib import Path

ROOT = Path(__file__).resolve().parents[2]
SCRIPT = ROOT / "scripts" / "playbook.py"
CUSTOM_DEPLOY_ROOT = "custom/playbook"


def run_script(script, *args):
    return subprocess.run(
        [sys.executable, str(script), *args],
        capture_output=True,
        text=True,
    )


def run_cli(*args):
    return run_script(SCRIPT, *args)


def write_config(root: Path, name: str, body: str) -> Path:
    config_path = root / name
    config_path.write_text(body, encoding="utf-8")
    return config_path


def bash_path(path: Path) -> str:
    resolved = path.resolve()
    if sys.platform != "win32":
        return resolved.as_posix()
    drive = resolved.drive.rstrip(":").lower()
    rest = resolved.as_posix()[2:]
    return f"/mnt/{drive}{rest}"


class PlaybookCliTests(unittest.TestCase):
    def assert_style_cleanup_tsl_docs_prefix(
        self, root: Path, agents_home: Path, docs_prefix: str
    ) -> None:
        agents_index = (root / ".agents" / "tsl" / "index.md").read_text(encoding="utf-8")
        self.assertIn(f"`{docs_prefix}/tsl/index.md`", agents_index)
        self.assertNotIn("`docs/tsl/index.md`", agents_index)

        skill_file = (agents_home / "skills" / "style-cleanup" / "SKILL.md").read_text(
            encoding="utf-8"
        )
        self.assertIn(f"`{docs_prefix}/tsl/code_style.md`", skill_file)
        self.assertNotIn("`docs/tsl/code_style.md`", skill_file)

    def test_help_shows_usage(self):
        result = run_cli("-h")
        self.assertEqual(result.returncode, 0)
        self.assertIn("Usage:", result.stdout + result.stderr)

    def test_missing_config_is_error(self):
        result = run_cli()
        self.assertNotEqual(result.returncode, 0)
        self.assertIn("-config", result.stdout + result.stderr)

    def test_action_order(self):
        config_body = f"""
[playbook]
project_root = "."
deploy_root = "{CUSTOM_DEPLOY_ROOT}"

[format_md]

[sync_standards]
langs = ["tsl"]
"""
        with tempfile.TemporaryDirectory() as tmp_dir:
            config_path = Path(tmp_dir) / "playbook.toml"
            config_path.write_text(config_body, encoding="utf-8")
            result = run_cli("-config", str(config_path))

        self.assertEqual(result.returncode, 0)
        output = result.stdout + result.stderr
        self.assertIn("sync_standards", output)
        self.assertIn("format_md", output)

    def test_format_md_only_does_not_require_deploy_root(self):
        with tempfile.TemporaryDirectory() as tmp_dir:
            config_body = f"""
[playbook]
project_root = "{tmp_dir}"

[format_md]
"""
            config_path = Path(tmp_dir) / "playbook.toml"
            config_path.write_text(config_body, encoding="utf-8")

            result = run_cli("-config", str(config_path))

        self.assertEqual(result.returncode, 0)

    def test_vendor_creates_snapshot(self):
        with tempfile.TemporaryDirectory() as tmp_dir:
            root = Path(tmp_dir)
            config_body = f"""
[playbook]
project_root = "{tmp_dir}"
deploy_root = "{CUSTOM_DEPLOY_ROOT}"

[vendor]
langs = ["tsl"]
"""
            config_path = write_config(root, "playbook.toml", config_body)

            result = run_cli("-config", str(config_path))

            snapshot = root / CUSTOM_DEPLOY_ROOT / "SOURCE.md"
            self.assertEqual(result.returncode, 0)
            self.assertTrue(snapshot.is_file())

    def test_vendor_docs_index_uses_new_tsl_entrypoints(self):
        with tempfile.TemporaryDirectory() as tmp_dir:
            root = Path(tmp_dir)
            config_body = f"""
[playbook]
project_root = "{tmp_dir}"
deploy_root = "{CUSTOM_DEPLOY_ROOT}"

[vendor]
langs = ["tsl"]
"""
            config_path = write_config(root, "playbook.toml", config_body)

            result = run_cli("-config", str(config_path))

            docs_index = root / CUSTOM_DEPLOY_ROOT / "docs/index.md"
            self.assertEqual(result.returncode, 0)
            text = docs_index.read_text(encoding="utf-8")
            self.assertIn("`tsl/index.md`", text)
            self.assertIn("`tsl/syntax/index.md`", text)
            self.assertIn("`tsl/finance/index.md`", text)
            self.assertIn("`tsl/modules/index.md`", text)
            self.assertIn("`tsl/reference/index.md`", text)
            self.assertNotIn("`tsl/syntax_book/index.md`", text)

    def test_external_clone_requires_explicit_deploy_root(self):
        with tempfile.TemporaryDirectory() as tmp_dir:
            root = Path(tmp_dir)
            config_body = f"""
[playbook]
project_root = "{tmp_dir}"

[vendor]
langs = ["tsl"]
"""
            config_path = write_config(root, "playbook.toml", config_body)

            result = run_cli("-config", str(config_path))

            self.assertNotEqual(result.returncode, 0)
            self.assertIn("deploy_root", result.stdout + result.stderr)

    def test_sync_memory_bank_creates_memory_bank(self):
        with tempfile.TemporaryDirectory() as tmp_dir:
            config_body = f"""
[playbook]
project_root = "{tmp_dir}"
deploy_root = "{CUSTOM_DEPLOY_ROOT}"

[sync_memory_bank]
project_name = "Demo"
"""
            config_path = Path(tmp_dir) / "playbook.toml"
            config_path.write_text(config_body, encoding="utf-8")

            result = run_cli("-config", str(config_path))

            memory_bank = Path(tmp_dir) / "memory-bank/project-brief.md"
            self.assertEqual(result.returncode, 0)
            self.assertTrue(memory_bank.is_file())

    def test_sync_standards_creates_agents(self):
        with tempfile.TemporaryDirectory() as tmp_dir:
            config_body = f"""
[playbook]
project_root = "{tmp_dir}"
deploy_root = "{CUSTOM_DEPLOY_ROOT}"

[sync_standards]
langs = ["tsl"]
"""
            config_path = Path(tmp_dir) / "playbook.toml"
            config_path.write_text(config_body, encoding="utf-8")

            result = run_cli("-config", str(config_path))

            agents_index = Path(tmp_dir) / ".agents/tsl/index.md"
            self.assertEqual(result.returncode, 0)
            self.assertTrue(agents_index.is_file())

    def test_sync_standards_updates_agents_index_when_langs_expand(self):
        with tempfile.TemporaryDirectory() as tmp_dir:
            root = Path(tmp_dir)

            first_config = root / "playbook-first.toml"
            first_config.write_text(
                f"""
[playbook]
project_root = "{tmp_dir}"
deploy_root = "{CUSTOM_DEPLOY_ROOT}"

[sync_standards]
langs = ["tsl"]
no_backup = true
""",
                encoding="utf-8",
            )

            first_result = run_cli("-config", str(first_config))
            self.assertEqual(first_result.returncode, 0)

            second_config = root / "playbook-second.toml"
            second_config.write_text(
                f"""
[playbook]
project_root = "{tmp_dir}"
deploy_root = "{CUSTOM_DEPLOY_ROOT}"

[sync_standards]
langs = ["tsl", "cpp"]
no_backup = true
""",
                encoding="utf-8",
            )

            second_result = run_cli("-config", str(second_config))
            self.assertEqual(second_result.returncode, 0)

            agents_index = (root / ".agents" / "index.md").read_text(encoding="utf-8")
            self.assertIn("`.agents/tsl/index.md`", agents_index)
            self.assertIn("`.agents/cpp/index.md`", agents_index)

    def test_sync_standards_agents_block_has_blank_lines(self):
        with tempfile.TemporaryDirectory() as tmp_dir:
            config_body = f"""
[playbook]
project_root = "{tmp_dir}"
deploy_root = "{CUSTOM_DEPLOY_ROOT}"

[sync_standards]
langs = ["tsl"]
"""
            config_path = Path(tmp_dir) / "playbook.toml"
            config_path.write_text(config_body, encoding="utf-8")

            result = run_cli("-config", str(config_path))
            self.assertEqual(result.returncode, 0)

            agents_md = Path(tmp_dir) / "AGENTS.md"
            lines = agents_md.read_text(encoding="utf-8").splitlines()
            start_idx = lines.index("<!-- playbook:agents:start -->")
            end_idx = lines.index("<!-- playbook:agents:end -->")
            block = lines[start_idx : end_idx + 1]
            self.assertEqual(block[1], "")
            bullet_idx = next(i for i, line in enumerate(block) if line.startswith("- "))
            self.assertEqual(block[bullet_idx - 1], "")

    def test_install_skills(self):
        with tempfile.TemporaryDirectory() as tmp_dir:
            target = Path(tmp_dir) / "agents"
            config_body = f"""
[playbook]
project_root = "{tmp_dir}"
deploy_root = "{CUSTOM_DEPLOY_ROOT}"

[install_skills]
agents_home = "{target}"
mode = "list"
skills = ["brainstorming"]
"""
            config_path = Path(tmp_dir) / "playbook.toml"
            config_path.write_text(config_body, encoding="utf-8")

            result = run_cli("-config", str(config_path))

            skill_file = target / "skills/brainstorming/SKILL.md"
            self.assertEqual(result.returncode, 0)
            self.assertTrue(skill_file.is_file())

    def test_install_generated_thirdparty_karpathy_skill_after_sync(self):
        with tempfile.TemporaryDirectory() as tmp_dir:
            tmp_root = Path(tmp_dir)
            mirror = tmp_root / "origin.git"
            repo = tmp_root / "repo"
            target = tmp_root / "agents"

            clone_mirror = subprocess.run(
                ["git", "clone", "--mirror", str(ROOT), str(mirror)],
                capture_output=True,
                text=True,
            )
            self.assertEqual(clone_mirror.returncode, 0, msg=clone_mirror.stderr)

            clone_repo = subprocess.run(
                ["git", "clone", str(mirror), str(repo)],
                capture_output=True,
                text=True,
            )
            self.assertEqual(clone_repo.returncode, 0, msg=clone_repo.stderr)

            set_remote = subprocess.run(
                ["git", "-C", str(repo), "remote", "set-url", "origin", bash_path(mirror)],
                capture_output=True,
                text=True,
            )
            self.assertEqual(set_remote.returncode, 0, msg=set_remote.stderr)

            manifest_src = ROOT / ".gitea" / "ci" / "thirdparty_skills.json"
            manifest_dst = repo / ".gitea" / "ci" / "thirdparty_skills.json"
            manifest_dst.write_text(manifest_src.read_text(encoding="utf-8"), encoding="utf-8")

            sync_result = subprocess.run(
                ["bash", ".gitea/ci/sync_thirdparty_skills.sh"],
                cwd=repo,
                capture_output=True,
                text=True,
            )
            self.assertEqual(
                sync_result.returncode, 0, msg=sync_result.stdout + sync_result.stderr
            )

            config_body = f"""
[playbook]
project_root = "{tmp_root}"
deploy_root = "{CUSTOM_DEPLOY_ROOT}"

[install_skills]
agents_home = "{target}"
mode = "list"
skills = ["karpathy-guidelines"]
"""
            config_path = tmp_root / "playbook.toml"
            config_path.write_text(config_body, encoding="utf-8")

            result = run_script(repo / "scripts" / "playbook.py", "-config", str(config_path))

            skill_file = target / "skills" / "karpathy-guidelines" / "SKILL.md"
            self.assertEqual(result.returncode, 0, msg=result.stdout + result.stderr)
            self.assertTrue(skill_file.is_file())

    def test_install_skills_rejects_removed_tsl_guide(self):
        with tempfile.TemporaryDirectory() as tmp_dir:
            target = Path(tmp_dir) / "agents"
            config_body = f"""
[playbook]
project_root = "{tmp_dir}"
deploy_root = "{CUSTOM_DEPLOY_ROOT}"

[install_skills]
agents_home = "{target}"
mode = "list"
skills = ["tsl-guide"]
"""
            config_path = Path(tmp_dir) / "playbook.toml"
            config_path.write_text(config_body, encoding="utf-8")

            result = run_cli("-config", str(config_path))

            self.assertNotEqual(result.returncode, 0)
            self.assertIn("skill not found: tsl-guide", result.stdout + result.stderr)

    def test_install_skills_rejects_codex_home(self):
        with tempfile.TemporaryDirectory() as tmp_dir:
            target = Path(tmp_dir) / "codex"
            config_body = f"""
[playbook]
project_root = "{tmp_dir}"
deploy_root = "{CUSTOM_DEPLOY_ROOT}"

[install_skills]
codex_home = "{target}"
mode = "list"
skills = ["brainstorming"]
"""
            config_path = Path(tmp_dir) / "playbook.toml"
            config_path.write_text(config_body, encoding="utf-8")

            result = run_cli("-config", str(config_path))

            self.assertNotEqual(result.returncode, 0)
            self.assertIn("codex_home", result.stdout + result.stderr)

    def test_external_clone_flow_rewrites_links_with_configured_deploy_root(self):
        with tempfile.TemporaryDirectory() as tmp_dir:
            root = Path(tmp_dir)
            agents_home = root / "agents-home"
            config_body = f"""
[playbook]
project_root = "{tmp_dir}"
deploy_root = "{CUSTOM_DEPLOY_ROOT}"

[vendor]
langs = ["tsl"]

[sync_standards]
langs = ["tsl"]
no_backup = true

[install_skills]
agents_home = "{agents_home}"
mode = "list"
skills = ["style-cleanup"]
"""
            config_path = write_config(root, "playbook.toml", config_body)

            result = run_cli("-config", str(config_path))

            self.assertEqual(result.returncode, 0, msg=result.stdout + result.stderr)
            self.assertTrue((root / CUSTOM_DEPLOY_ROOT / "SOURCE.md").is_file())
            self.assert_style_cleanup_tsl_docs_prefix(
                root, agents_home, f"{CUSTOM_DEPLOY_ROOT}/docs"
            )

    def test_deployed_snapshot_rewrites_links_from_snapshot_location(self):
        with tempfile.TemporaryDirectory() as tmp_dir:
            root = Path(tmp_dir)
            vendor_config = write_config(
                root,
                "vendor.toml",
                f"""
[playbook]
project_root = "{tmp_dir}"
deploy_root = "{CUSTOM_DEPLOY_ROOT}"

[vendor]
langs = ["tsl"]
""",
            )

            vendor_result = run_cli("-config", str(vendor_config))
            self.assertEqual(vendor_result.returncode, 0, msg=vendor_result.stdout + vendor_result.stderr)

            vendored_script = root / CUSTOM_DEPLOY_ROOT / "scripts" / "playbook.py"
            agents_home = root / "local-agents"
            sync_config = write_config(
                root,
                "sync.toml",
                f"""
[playbook]
project_root = "{tmp_dir}"
deploy_root = "{CUSTOM_DEPLOY_ROOT}"

[sync_standards]
langs = ["tsl"]
no_backup = true

[install_skills]
agents_home = "{agents_home}"
mode = "list"
skills = ["style-cleanup"]
""",
            )

            sync_result = run_script(vendored_script, "-config", str(sync_config))
            self.assertEqual(sync_result.returncode, 0, msg=sync_result.stdout + sync_result.stderr)
            self.assert_style_cleanup_tsl_docs_prefix(
                root, agents_home, f"{CUSTOM_DEPLOY_ROOT}/docs"
            )

if __name__ == "__main__":
    unittest.main()