"""Step definitions for database integration tests."""

import tempfile
from datetime import datetime
from pathlib import Path

from behave import given, then, when

from cleveragents.config.settings import Settings
from cleveragents.domain.models.core import (
    Change,
    Context,
    ContextType,
    OperationType,
    Plan,
    PlanStatus,
    Project,
    ProjectSettings,
)
from cleveragents.infrastructure.database.unit_of_work import UnitOfWork
from features.mocks.mock_ai_provider import MockAIProvider


@given("I have a clean test database")
def step_clean_test_database(context):
    """Create a clean test database."""
    # Use in-memory SQLite for tests
    context.database_url = "sqlite:///:memory:"
    context.unit_of_work = UnitOfWork(context.database_url)
    context.unit_of_work.init_database()


@given("I have initialized the Unit of Work")
def step_init_unit_of_work(context):
    """Initialize Unit of Work."""
    if not hasattr(context, "unit_of_work"):
        context.unit_of_work = UnitOfWork(context.database_url)
        context.unit_of_work.init_database()


@when('I create a project with name "{name}"')
def step_create_project(context, name):
    """Create a project using repository."""
    project = Project(
        name=name,
        path=Path("/tmp/test-project"),
        settings=ProjectSettings(),
        created_at=datetime.now(),
        updated_at=datetime.now(),
    )

    with context.unit_of_work.transaction() as ctx:
        context.created_project = ctx.projects.create(project)


@then("the project should be saved in the database")
def step_verify_project_saved(context):
    """Verify project is saved."""
    assert context.created_project is not None
    assert context.created_project.id is not None


@then("I can retrieve the project using Unit of Work")
def step_can_retrieve_project_with_uow(context):
    """Verify we can retrieve the project using Unit of Work."""
    with context.unit_of_work.transaction() as ctx:
        retrieved = ctx.projects.get_by_name(context.created_project.name)
        assert retrieved is not None
        assert retrieved.name == context.created_project.name
        assert retrieved.id == context.created_project.id


@then("the project should have the correct properties")
def step_verify_project_properties(context):
    """Verify project properties."""
    with context.unit_of_work.transaction() as ctx:
        project = ctx.projects.get_by_id(context.created_project.id)
        assert project.name == context.created_project.name
        assert project.path == context.created_project.path
        assert project.settings is not None


@when("I start a Unit of Work transaction")
def step_start_transaction(context):
    """Start a UoW transaction."""
    context.transaction = context.unit_of_work.transaction()
    context.transaction_context = context.transaction.__enter__()


@when('I create a project "{name}" in the transaction')
def step_create_project_in_transaction(context, name):
    """Create project in transaction."""
    project = Project(
        name=name,
        path=Path(f"/tmp/{name}"),
        settings=ProjectSettings(),
        created_at=datetime.now(),
        updated_at=datetime.now(),
    )
    context.transaction_project = context.transaction_context.projects.create(project)


@when('I create a plan "{name}" in the transaction')
def step_create_plan_in_transaction(context, name):
    """Create plan in transaction."""
    plan = Plan(
        project_id=context.transaction_project.id,
        name=name,
        prompt="Test plan",
        status=PlanStatus.PENDING,
        current=True,
        created_at=datetime.now(),
        updated_at=datetime.now(),
    )
    context.transaction_plan = context.transaction_context.plans.create(plan)


@when("I commit the transaction")
def step_commit_transaction(context):
    """Commit the transaction."""
    context.transaction.__exit__(None, None, None)


@then("both the project and plan should exist in the database")
def step_verify_both_exist(context):
    """Verify both project and plan exist."""
    with context.unit_of_work.transaction() as ctx:
        project = ctx.projects.get_by_id(context.transaction_project.id)
        assert project is not None

        plan = ctx.plans.get_by_id(context.transaction_plan.id)
        assert plan is not None


@when("an error occurs during the transaction")
def step_error_in_transaction(context):
    """Simulate an error in transaction."""
    try:
        raise Exception("Simulated error")
    except Exception as e:
        context.transaction_error = e


@then("the transaction should rollback")
def step_verify_rollback(context):
    """Verify transaction rolled back."""
    context.transaction.__exit__(
        type(context.transaction_error), context.transaction_error, None
    )


@then("no data should be saved to the database")
def step_verify_no_data_saved(context):
    """Verify no data was saved."""
    # Create a new transaction to check the database state
    # Use a fresh connection to ensure we see the current state
    from cleveragents.infrastructure.database.unit_of_work import UnitOfWork

    # Create a new UoW with the same database
    fresh_uow = UnitOfWork(context.unit_of_work.database_url)
    fresh_uow.init_database()  # Ensure database is initialized

    with fresh_uow.transaction() as ctx:
        # Check that the project doesn't exist
        project = ctx.projects.get_by_name("test-project")
        # The rollback should have prevented saving
        # If the project exists, the rollback didn't work
        assert project is None, "Project was saved despite rollback"


@given('I have a project "{name}" in the database')
def step_create_project_in_db(context, name):
    """Create a project in database."""
    project = Project(
        name=name,
        path=Path(f"/tmp/{name}"),
        settings=ProjectSettings(),
        created_at=datetime.now(),
        updated_at=datetime.now(),
    )

    with context.unit_of_work.transaction() as ctx:
        context.test_project = ctx.projects.create(project)


@when('I create a plan "{name}" for the project')
def step_create_plan_for_project(context, name):
    """Create a plan for the project."""
    plan = Plan(
        project_id=context.test_project.id,
        name=name,
        prompt=f"Plan {name}",
        status=PlanStatus.PENDING,
        current=False,
        created_at=datetime.now(),
        updated_at=datetime.now(),
    )

    with context.unit_of_work.transaction() as ctx:
        context.first_plan = ctx.plans.create(plan)


@when('I create another plan "{name}" for the project')
def step_create_another_plan(context, name):
    """Create another plan."""
    plan = Plan(
        project_id=context.test_project.id,
        name=name,
        prompt=f"Plan {name}",
        status=PlanStatus.PENDING,
        current=False,
        created_at=datetime.now(),
        updated_at=datetime.now(),
    )

    with context.unit_of_work.transaction() as ctx:
        context.second_plan = ctx.plans.create(plan)


@then("I should be able to list all plans for the project")
def step_list_plans(context):
    """List all plans for project."""
    with context.unit_of_work.transaction() as ctx:
        plans = ctx.plans.get_all_for_project(context.test_project.id)
        assert len(plans) == 2
        plan_names = [p.name for p in plans]
        assert "feature-1" in plan_names
        assert "feature-2" in plan_names


@then('I should be able to set "{name}" as the current plan')
def step_set_current_plan(context, name):
    """Set a plan as current."""
    with context.unit_of_work.transaction() as ctx:
        ctx.plans.set_current(context.test_project.id, context.second_plan.id)


@then('the current plan should be "{name}"')
def step_verify_current_plan(context, name):
    """Verify current plan."""
    with context.unit_of_work.transaction() as ctx:
        current = ctx.plans.get_current_for_project(context.test_project.id)
        assert current is not None
        assert current.name == name


@given("I have a project with a current plan")
def step_project_with_current_plan(context):
    """Create project with current plan."""
    project = Project(
        name="test-project",
        path=Path("/tmp/test-project"),
        settings=ProjectSettings(),
        created_at=datetime.now(),
        updated_at=datetime.now(),
    )

    with context.unit_of_work.transaction() as ctx:
        context.test_project = ctx.projects.create(project)

        plan = Plan(
            project_id=context.test_project.id,
            name="current-plan",
            prompt="Test",
            status=PlanStatus.PENDING,
            current=True,
            created_at=datetime.now(),
            updated_at=datetime.now(),
        )
        context.current_plan = ctx.plans.create(plan)


@when('I add a file "{filename}" to the context')
def step_add_file_to_context(context, filename):
    """Add file to context."""
    file_context = Context(
        plan_id=context.current_plan.id,
        type=ContextType.FILE,
        path=filename,
        content=f"# Content of {filename}",
        file_hash="abc123",
        size=100,
        added_at=datetime.now(),
    )

    with context.unit_of_work.transaction() as ctx:
        context.first_context = ctx.contexts.add(file_context)


@when('I add another file "{filename}" to the context')
def step_add_another_file(context, filename):
    """Add another file to context."""
    file_context = Context(
        plan_id=context.current_plan.id,
        type=ContextType.FILE,
        path=filename,
        content=f"# Content of {filename}",
        file_hash="def456",
        size=150,
        added_at=datetime.now(),
    )

    with context.unit_of_work.transaction() as ctx:
        context.second_context = ctx.contexts.add(file_context)


@then("I should be able to list all context files")
def step_list_context_files(context):
    """List context files."""
    with context.unit_of_work.transaction() as ctx:
        contexts = ctx.contexts.get_for_plan(context.current_plan.id)
        assert len(contexts) == 2
        paths = [c.path for c in contexts]
        assert "test.py" in paths
        assert "main.py" in paths


@then('I should be able to remove "{filename}" from context')
def step_remove_from_context(context, filename):
    """Remove file from context."""
    with context.unit_of_work.transaction() as ctx:
        ctx.contexts.remove(context.first_context.id)


@then('only "{filename}" should remain in context')
def step_verify_remaining_context(context, filename):
    """Verify remaining context."""
    with context.unit_of_work.transaction() as ctx:
        contexts = ctx.contexts.get_for_plan(context.current_plan.id)
        assert len(contexts) == 1
        assert contexts[0].path == filename


@given("I have a project with a built plan")
def step_project_with_built_plan(context):
    """Create project with built plan."""
    step_project_with_current_plan(context)

    with context.unit_of_work.transaction() as ctx:
        context.current_plan.status = PlanStatus.BUILT
        ctx.plans.update(context.current_plan)


@when('I add a change to create "{filename}"')
def step_add_create_change(context, filename):
    """Add a create change."""
    change = Change(
        plan_id=context.current_plan.id,
        file_path=filename,
        operation=OperationType.CREATE,
        new_content="# New file content",
        applied=False,
    )

    with context.unit_of_work.transaction() as ctx:
        context.first_change = ctx.changes.add(change)


@when('I add a change to modify "{filename}"')
def step_add_modify_change(context, filename):
    """Add a modify change."""
    change = Change(
        plan_id=context.current_plan.id,
        file_path=filename,
        operation=OperationType.MODIFY,
        original_content="# Old content",
        new_content="# Modified content",
        applied=False,
    )

    with context.unit_of_work.transaction() as ctx:
        context.second_change = ctx.changes.add(change)


@when("I mark the first change as applied")
def step_mark_change_applied(context):
    """Mark change as applied."""
    with context.unit_of_work.transaction() as ctx:
        ctx.changes.mark_applied(context.first_change.id)


@then("the applied change should have an applied timestamp")
def step_verify_applied_timestamp(context):
    """Verify applied timestamp."""
    with context.unit_of_work.transaction() as ctx:
        changes = ctx.changes.get_for_plan(context.current_plan.id)
        applied_change = next(c for c in changes if c.id == context.first_change.id)
        assert applied_change.applied is True
        assert applied_change.applied_at is not None


@then("the second change should still be pending")
def step_verify_pending_change(context):
    """Verify pending change."""
    with context.unit_of_work.transaction() as ctx:
        changes = ctx.changes.get_for_plan(context.current_plan.id)
        pending_change = next(c for c in changes if c.id == context.second_change.id)
        assert pending_change.applied is False
        assert pending_change.applied_at is None


@when("I use ProjectService to initialize a project")
def step_use_project_service(context):
    """Use ProjectService."""
    from cleveragents.application.services.project_service import ProjectService

    settings = Settings()
    service = ProjectService(settings, context.unit_of_work)

    with tempfile.TemporaryDirectory() as tmpdir:
        context.service_project = service.initialize_project(
            "service-test", Path(tmpdir)
        )


@then("the service should use Unit of Work")
def step_verify_service_uses_uow(context):
    """Verify service uses UoW."""
    # The service initialized successfully, which means it used UoW
    assert context.service_project is not None


@then("the database infrastructure should be initialized")
def step_verify_database_infrastructure_initialized(context):
    """Verify database infrastructure is initialized."""
    # The database was initialized by the service using Unit of Work
    # We can verify this by checking that we can perform database operations
    assert context.service_project is not None

    # Verify we can query the database without errors
    with context.unit_of_work.transaction() as ctx:
        # Should be able to query the project
        # Use the actual project name that was created
        expected_name = (
            context.service_project.name
            if hasattr(context, "service_project") and context.service_project
            else "new-project"
        )
        project = ctx.projects.get_by_name(expected_name)
        assert project is not None, (
            f"Project '{expected_name}' should exist in database"
        )
        assert project.name == expected_name


@then("the project should be persisted correctly")
def step_verify_project_persisted(context):
    """Verify project is persisted."""
    assert context.service_project.name == "service-test"
    assert context.service_project.settings is not None


@given("I have an initialized project for database testing")
def step_initialized_project_db(context):
    """Create initialized project for database tests."""
    from cleveragents.application.services.project_service import ProjectService

    settings = Settings()
    service = ProjectService(settings, context.unit_of_work)

    with tempfile.TemporaryDirectory() as tmpdir:
        context.test_project = service.initialize_project("test-project", Path(tmpdir))


@when("I use PlanService to create a plan")
def step_use_plan_service(context):
    """Use PlanService."""
    from cleveragents.application.services.plan_service import PlanService

    settings = Settings()
    mock_provider = MockAIProvider()
    service = PlanService(settings, context.unit_of_work, ai_provider=mock_provider)

    context.service_plan = service.create_plan(
        context.test_project, "Create a new feature", "feature-plan"
    )


@then("the plan should be saved via repository")
def step_verify_plan_saved_via_repo(context):
    """Verify plan saved via repository."""
    assert context.service_plan is not None
    assert context.service_plan.id is not None


@then("the plan should be set as current")
def step_verify_plan_is_current(context):
    """Verify plan is current."""
    assert context.service_plan.current is True


@then("I should be able to retrieve it")
def step_retrieve_plan(context):
    """Retrieve the plan."""
    from cleveragents.application.services.plan_service import PlanService

    settings = Settings()
    mock_provider = MockAIProvider()
    service = PlanService(settings, context.unit_of_work, ai_provider=mock_provider)

    current = service.get_current_plan(context.test_project)
    assert current is not None
    assert current.name == "feature-plan"


@given("I have a project with a plan")
def step_project_with_plan(context):
    """Create project with plan."""
    step_initialized_project_db(context)
    step_use_plan_service(context)


@when("I use ContextService to add files")
def step_use_context_service(context):
    """Use ContextService."""
    from cleveragents.application.services.context_service import ContextService

    settings = Settings()
    service = ContextService(settings, context.unit_of_work)

    # Create a temporary file to add
    with tempfile.NamedTemporaryFile(mode="w", suffix=".py", delete=False) as f:
        f.write("# Test file content\n")
        context.test_file = Path(f.name)

    context.added_files = service.add_to_context(
        context.test_project, context.test_file, recursive=False
    )


@then("the context should be saved via repository")
def step_verify_context_saved(context):
    """Verify context saved."""
    assert len(context.added_files) > 0


@then("the files should be associated with the plan")
def step_verify_files_associated(context):
    """Verify files associated with plan."""
    from cleveragents.application.services.context_service import ContextService

    settings = Settings()
    service = ContextService(settings, context.unit_of_work)

    contexts = service.list_context(context.test_project)
    assert len(contexts) > 0


@then("I should be able to query the context")
def step_query_context(context):
    """Query the context."""
    from cleveragents.application.services.context_service import ContextService

    settings = Settings()
    service = ContextService(settings, context.unit_of_work)

    size = service.get_context_size(context.test_project)
    assert size > 0

    # Cleanup
    if hasattr(context, "test_file"):
        context.test_file.unlink(missing_ok=True)