"""
Verification Step Definitions.

This module contains step definitions related to:
- Installation verification
- Test assertions
- File validation
- DES verification

Domain: Verification Operations
"""

from pathlib import Path

import pytest
from pytest_bdd import given, parsers, then, when


# -----------------------------------------------------------------------------
# Given Steps: Verification Preconditions
# -----------------------------------------------------------------------------


@given("design.md Phase 1 specification exists")
def design_spec_exists(project_root: Path):
    """Verify design specification exists."""
    # Design path: docs/feature/plugin-architecture/design.md
    # May not exist yet, just note for documentation
    _ = project_root  # Acknowledge parameter for future implementation


@given(parsers.parse('DES source exists at "{path}"'))
def des_source_exists(path: str, project_root: Path):
    """Verify DES source exists."""
    full_path = project_root / path
    if not full_path.exists():
        pytest.skip(f"DES source not found: {full_path}")


@given(parsers.parse('DES scripts exist at "{path}"'))
def des_scripts_exist(path: str, project_root: Path):
    """Verify DES scripts exist."""
    full_path = project_root / path
    if not full_path.exists():
        pytest.skip(f"DES scripts not found: {full_path}")


@given(parsers.parse('DES templates exist at "{path}"'))
def des_templates_exist(path: str, project_root: Path):
    """Verify DES templates exist."""
    full_path = project_root / path
    if not full_path.exists():
        pytest.skip(f"DES templates not found: {full_path}")


@given(parsers.parse('DES scripts do NOT exist at "{path}"'))
def des_scripts_not_exist(path: str, project_root: Path):
    """Verify DES scripts do NOT exist (for error testing)."""
    full_path = project_root / path
    if full_path.exists():
        pytest.skip("DES scripts exist - cannot test missing scenario")


@given(parsers.parse('DES templates do NOT exist at "{path}"'))
def des_templates_not_exist(path: str, project_root: Path):
    """Verify DES templates do NOT exist (for error testing)."""
    full_path = project_root / path
    if full_path.exists():
        pytest.skip("DES templates exist - cannot test missing scenario")


@given("DESPlugin installation is complete")
def des_plugin_installed(clean_test_directory: Path):
    """Verify DESPlugin installation is complete."""
    pass


@given(parsers.parse('DES scripts are installed at "{path}"'))
def des_scripts_installed_at(path: str, clean_test_directory: Path):
    """Verify DES scripts are installed."""
    pass


@given("BackupManager is configured and operational")
def backup_manager_configured():
    """Verify BackupManager is configured."""
    pass


@given(parsers.parse("{count:d} plugins install successfully (agents, commands)"))
def some_plugins_install(count: int):
    """Simulate some plugins installing successfully."""
    pytest.successful_plugins = count


@given(parsers.parse("the 3rd plugin ({plugin_name}) fails during installation"))
def plugin_fails(plugin_name: str):
    """Simulate plugin failure during installation."""
    pytest.failed_plugin = plugin_name


@given(parsers.parse('user specifies {flag}: "{value}"'))
def user_specifies_flag(flag: str, value: str):
    """User specifies command flag."""
    pytest.user_flag = (flag, value)


@given(parsers.parse('user specifies plugin to uninstall: "{plugin_name}"'))
def user_specifies_uninstall(plugin_name: str):
    """User specifies plugin to uninstall."""
    pytest.uninstall_plugin = plugin_name


@given(
    parsers.parse(
        'user attempts to uninstall "{plugin_name}" (has dependent: {dependent})'
    )
)
def user_attempts_uninstall_with_dependent(plugin_name: str, dependent: str):
    """User attempts to uninstall plugin with dependents."""
    pytest.uninstall_plugin = plugin_name
    pytest.dependent_plugin = dependent


@given(parsers.parse("user has successfully installed nWave {version} with DES plugin"))
def user_installed_with_des(version: str):
    """User has successfully installed nWave with DES."""
    pytest.installed_version = version


@given("user creates a new nWave project")
def user_creates_project():
    """User creates new nWave project."""
    pass


# -----------------------------------------------------------------------------
# When Steps: Verification Actions
# -----------------------------------------------------------------------------


@when(parsers.parse("I run pytest on {test_path}"))
def run_pytest_on_path(test_path: str, project_root: Path):
    """Run pytest on specific test path."""
    full_path = project_root / test_path
    pytest.test_path = full_path


@when(parsers.parse("I create DESPlugin and register it with PluginRegistry"))
def create_and_register_des_plugin():
    """Create and register DESPlugin."""
    try:
        from scripts.install.plugins.des_plugin import DESPlugin

        pytest.des_plugin = DESPlugin()
    except ImportError:
        pytest.skip("DESPlugin not yet implemented")


@when(parsers.parse('I run subprocess import test: "{command}"'))
def run_subprocess_import(command: str):
    """Run subprocess import test."""
    pytest.import_command = command


@when(parsers.parse("I check file permissions on {filename}"))
def check_file_permissions(filename: str, clean_test_directory: Path):
    """Check file permissions."""
    pytest.checked_file = filename


@when("I attempt to install DESPlugin")
def attempt_install_des_plugin():
    """Attempt to install DESPlugin."""
    pass


@when("the installation failure is detected")
def installation_failure_detected():
    """Detect installation failure."""
    pass


@when("rollback procedure is triggered")
def rollback_triggered():
    """Trigger rollback procedure."""
    pass


@when(parsers.parse("I run install_nwave.py {args}"))
def run_installer_with_args(args: str, project_root: Path):
    """Run installer with arguments."""
    pytest.installer_args = args


# -----------------------------------------------------------------------------
# Then Steps: Verification Assertions
# -----------------------------------------------------------------------------


@then(parsers.parse("all {count:d} unit tests pass"))
def unit_tests_pass(count: int):
    """Verify unit tests pass."""
    pass


@then("Kahn's algorithm correctly orders plugins by dependencies")
def kahn_algorithm_correct():
    """Verify Kahn's algorithm works."""
    pass


@then("circular dependency detection works (raises error on cycle)")
def circular_dep_detection_works():
    """Verify circular dependency detection."""
    pass


@then("priority ordering is validated (higher priority executes first)")
def priority_ordering_validated():
    """Verify priority ordering."""
    pass


@then(parsers.parse("test coverage is at least {percent:d}% for {module}"))
def test_coverage_at_least(percent: int, module: str):
    """Verify test coverage."""
    pass


@then(parsers.parse("test coverage is at least {percent:d}% (pytest-cov)"))
def test_coverage_percent(percent: int):
    """Verify test coverage percentage."""
    pass


@then("the plugin infrastructure is ready for wrapper plugin creation")
def infrastructure_ready():
    """Verify infrastructure is ready."""
    pass


@then("AgentsPlugin.install() executes successfully")
def agents_install_executes():
    """Verify AgentsPlugin.install() executes."""
    assert hasattr(pytest, "install_result")
    if pytest.install_result:
        assert pytest.install_result.success


@then(parsers.parse('agent files are copied to "{path}"'))
def agent_files_copied(path: str, clean_test_directory: Path):
    """Verify agent files are copied."""
    pass


@then(parsers.parse("at least {count:d} agent .md file exists in the target directory"))
def agent_files_exist(count: int, clean_test_directory: Path):
    """Verify agent files exist."""
    agents_dir = clean_test_directory / "agents" / "nw"
    if agents_dir.exists():
        agent_files = list(agents_dir.glob("*.md"))
        assert len(agent_files) >= count, (
            f"Expected >= {count} agents, found {len(agent_files)}"
        )


@then(parsers.parse('AgentsPlugin.verify() returns success with message "{message}"'))
def agents_verify_success(message: str):
    """Verify AgentsPlugin.verify() returns success."""
    pass


@then("the agents directory is accessible and functional")
def agents_dir_accessible():
    """Verify agents directory is accessible."""
    pass


@then("the installation returns PluginResult with success=False")
def installation_returns_failure():
    """Verify installation returns failure."""
    assert hasattr(pytest, "install_result")
    if pytest.install_result:
        assert not pytest.install_result.success


@then(parsers.parse('the error message contains "{message}"'))
def error_message_contains(message: str):
    """Verify error message contains text."""
    pass


@then("the installation is marked as failed in plugin registry")
def installation_marked_failed():
    """Verify installation marked as failed."""
    pass


@then("no partial files are created in target directory")
def no_partial_files():
    """Verify no partial files created."""
    pass


@then("BackupManager creates backups before installation")
def backup_created():
    """Verify backup created."""
    pass


@then("verification passes for all components")
def verification_passes_all():
    """Verify all components pass verification."""
    pass


@then("BackupManager restores from backup")
def backup_restored():
    """Verify backup restored."""
    pass


@then("agents and commands directories are removed")
def dirs_removed():
    """Verify directories removed."""
    pass


@then("the system state matches pre-installation")
def state_matches_pre_install():
    """Verify state matches pre-installation."""
    pass


@then("no partial plugin installations remain")
def no_partial_installations():
    """Verify no partial installations."""
    pass


@then("the error is logged with details for debugging")
def error_logged():
    """Verify error is logged."""
    pass


@then(parsers.parse("DES is installed AFTER {dependencies} (dependency resolution)"))
def des_installed_after(dependencies: str):
    """Verify DES installed after dependencies."""
    pass


@then(parsers.parse('DES module is copied to "{path}"'))
def des_module_copied(path: str):
    """Verify DES module copied."""
    pass


@then(parsers.parse('DES scripts are copied to "{path}"'))
def des_scripts_copied(path: str):
    """Verify DES scripts copied."""
    pass


@then(parsers.parse('DES templates are copied to "{path}"'))
def des_templates_copied(path: str):
    """Verify DES templates copied."""
    pass


@then("DES installation completes without installer changes")
def des_install_no_changes():
    """Verify DES installed without installer changes."""
    pass


@then("the import succeeds without errors")
def import_succeeds():
    """Verify import succeeds."""
    pass


@then(parsers.parse('the output contains "{expected}"'))
def output_contains(expected: str):
    """Verify output contains expected text."""
    pass


@then("DES module is functional and accessible")
def des_functional():
    """Verify DES is functional."""
    pass


@then("DESOrchestrator class can be instantiated")
def des_orchestrator_instantiable():
    """Verify DESOrchestrator can be instantiated."""
    pass


@then("both scripts have executable permissions (chmod +x)")
def scripts_have_exec_perms():
    """Verify scripts have executable permissions."""
    pass


@then(parsers.parse('both scripts can be executed: "{command}"'))
def scripts_can_execute(command: str):
    """Verify scripts can execute."""
    pass


@then("scripts execute without import errors")
def scripts_no_import_errors():
    """Verify scripts execute without import errors."""
    pass


@then("scripts output help or status messages correctly")
def scripts_output_correctly():
    """Verify scripts output correctly."""
    pass


@then(parsers.parse("installation returns PluginResult with {result}"))
def installation_returns_result(result: str):
    """Verify installation returns expected result."""
    pass


@then(parsers.parse('error message contains "{message}"'))
def error_contains(message: str):
    """Verify error contains message."""
    pass


@then("no partial DES files are installed")
def no_partial_des():
    """Verify no partial DES files."""
    pass


@then("the error is logged with clear remediation steps")
def error_with_remediation():
    """Verify error has remediation steps."""
    pass


@then("all unit tests pass (plugin isolation tests)")
def unit_tests_isolation_pass():
    """Verify unit tests pass."""
    pass


@then("all integration tests pass (fresh install + upgrade scenarios)")
def integration_tests_pass_scenarios():
    """Verify integration tests pass."""
    pass


@then("verification reports all components as OK")
def verification_all_ok():
    """Verify all components OK."""
    pass


@then(
    parsers.parse(
        "{count:d} plugins are installed (agents, commands, templates, utilities)"
    )
)
def count_plugins_installed(count: int):
    """Verify plugin count."""
    pass


@then("DES plugin is NOT installed")
def des_not_installed():
    """Verify DES not installed."""
    pass


@then(parsers.parse('DES module is NOT found at "{path}"'))
def des_not_found(path: str):
    """Verify DES not found."""
    pass


@then(parsers.parse('verification reports DES as "{status}"'))
def verification_reports_des(status: str):
    """Verify DES status."""
    pass


@then("the installation is otherwise complete and functional")
def install_otherwise_complete():
    """Verify installation otherwise complete."""
    pass


@then("DES plugin is uninstalled")
def des_uninstalled():
    """Verify DES uninstalled."""
    pass


@then(parsers.parse('DES module is removed from "{path}"'))
def des_removed_from(path: str):
    """Verify DES removed."""
    pass


@then(parsers.parse('DES scripts are removed from "{path}"'))
def des_scripts_removed(path: str):
    """Verify DES scripts removed."""
    pass


@then("other plugins remain installed (agents, commands, templates, utilities)")
def other_plugins_remain():
    """Verify other plugins remain."""
    pass


@then("other components verify successfully")
def other_components_verify():
    """Verify other components."""
    pass


@then("uninstallation is blocked with error code 1")
def uninstall_blocked():
    """Verify uninstall blocked."""
    pass


@then(
    parsers.parse(
        "error message contains \"Cannot uninstall '{plugin}': required by {dependent}\""
    )
)
def error_cannot_uninstall(plugin: str, dependent: str):
    """Verify cannot uninstall error."""
    pass


@then(parsers.parse('error lists all dependent plugins: "{message}"'))
def error_lists_dependents(message: str):
    """Verify error lists dependents."""
    pass


@then("no files are removed (operation aborts safely)")
def no_files_removed():
    """Verify no files removed."""
    pass


@then("all plugins remain installed and functional")
def all_plugins_remain():
    """Verify all plugins remain."""
    pass


@then(parsers.parse('{plugin} plugin is still present at "{path}"'))
def plugin_still_present(plugin: str, path: str):
    """Verify plugin still present."""
    pass


@then("verification passes for all components (old + new)")
def verification_old_new():
    """Verify all components."""
    pass


@then(parsers.parse('DES audit trail is created: "{path}"'))
def des_audit_created(path: str):
    """Verify DES audit created."""
    pass


@then(parsers.parse('DES log contains: "{event}" event'))
def des_log_contains(event: str):
    """Verify DES log contains event."""
    pass


@then("DES tracks execution phases (RED_UNIT, GREEN, REFACTOR, etc.)")
def des_tracks_phases():
    """Verify DES tracks phases."""
    pass


@then("DES enforces scope boundaries during development")
def des_enforces_scope():
    """Verify DES enforces scope."""
    pass


@then("DES detects stale phases on commit (pre-commit hook)")
def des_detects_stale():
    """Verify DES detects stale phases."""
    pass


@then("user experiences zero friction with DES integration")
def zero_friction():
    """Verify zero friction."""
    pass
