"""Tests for muse/core/hooks.py::run_hook_point — musehub#192 Phase 3 core layer.

Covers command execution semantics only. CLI-level `muse commit` integration
(--no-verify, warnings, exit codes) is covered in tests/test_cmd_commit_hooks.py.
"""

import pathlib

from muse.core.hooks import install_hooks, run_hook_point


def _write_hooks(tmp_path: pathlib.Path, content: str) -> None:
    (tmp_path / ".musehooks.toml").write_text(content, encoding="utf-8")


class TestRunHookPointNotInstalled:
    def test_not_installed_does_not_execute_anything(self, tmp_path: pathlib.Path) -> None:
        _write_hooks(
            tmp_path,
            '[pre-commit]\ncommands = ["touch should-not-exist.txt"]\n',
        )
        result = run_hook_point(tmp_path, "pre-commit")
        assert result.executed is False
        assert result.passed is True
        assert not (tmp_path / "should-not-exist.txt").exists()

    def test_no_hooks_defined_at_all_is_a_pass(self, tmp_path: pathlib.Path) -> None:
        install_hooks(tmp_path)  # installed, but nothing declared
        result = run_hook_point(tmp_path, "pre-commit")
        assert result.executed is False
        assert result.passed is True


class TestRunHookPointInstalled:
    def test_passing_command_executes_and_passes(self, tmp_path: pathlib.Path) -> None:
        _write_hooks(
            tmp_path,
            '[pre-commit]\ncommands = ["touch ran.txt"]\n',
        )
        install_hooks(tmp_path)
        result = run_hook_point(tmp_path, "pre-commit")
        assert result.executed is True
        assert result.passed is True
        assert (tmp_path / "ran.txt").exists()

    def test_failing_command_stops_and_reports_it(self, tmp_path: pathlib.Path) -> None:
        _write_hooks(
            tmp_path,
            '[pre-commit]\ncommands = ["exit 1"]\n',
        )
        install_hooks(tmp_path)
        result = run_hook_point(tmp_path, "pre-commit")
        assert result.executed is True
        assert result.passed is False
        assert result.failed_command == "exit 1"

    def test_first_failure_stops_subsequent_commands(self, tmp_path: pathlib.Path) -> None:
        _write_hooks(
            tmp_path,
            '[pre-commit]\ncommands = ["exit 1", "touch should-not-run.txt"]\n',
        )
        install_hooks(tmp_path)
        result = run_hook_point(tmp_path, "pre-commit")
        assert result.passed is False
        assert not (tmp_path / "should-not-run.txt").exists()

    def test_multiple_passing_commands_all_run_in_order(self, tmp_path: pathlib.Path) -> None:
        _write_hooks(
            tmp_path,
            '[pre-commit]\ncommands = ["touch first.txt", "touch second.txt"]\n',
        )
        install_hooks(tmp_path)
        result = run_hook_point(tmp_path, "pre-commit")
        assert result.passed is True
        assert (tmp_path / "first.txt").exists()
        assert (tmp_path / "second.txt").exists()

    def test_stderr_captured_on_failure(self, tmp_path: pathlib.Path) -> None:
        _write_hooks(
            tmp_path,
            '[pre-commit]\ncommands = ["echo boom-message 1>&2; exit 1"]\n',
        )
        install_hooks(tmp_path)
        result = run_hook_point(tmp_path, "pre-commit")
        assert result.passed is False
        assert "boom-message" in result.output

    def test_runs_relative_to_repo_root(self, tmp_path: pathlib.Path) -> None:
        _write_hooks(
            tmp_path,
            '[pre-commit]\ncommands = ["touch here.txt"]\n',
        )
        install_hooks(tmp_path)
        # Run from a subdirectory-equivalent scenario by passing tmp_path as
        # root explicitly — command must execute with cwd=root regardless of
        # the caller's actual process cwd.
        run_hook_point(tmp_path, "pre-commit")
        assert (tmp_path / "here.txt").exists()