# Credential Management Screen Tests
# Validates screen state management, CRUD workflows, modal validation,
# and error handling for all credential management screens.
# Tests focus on behavior/state logic, not visual rendering.

from __future__ import annotations

from unittest.mock import MagicMock

import pytest

from passfx.core.models import CreditCard, EmailCredential, NoteEntry, PhoneCredential

# ---------------------------------------------------------------------------
# Fixtures
# ---------------------------------------------------------------------------


@pytest.fixture
def mock_vault() -> MagicMock:
    """Create a mock Vault with empty credential lists."""
    mock = MagicMock()
    mock.get_emails.return_value = []
    mock.get_phones.return_value = []
    mock.get_cards.return_value = []
    mock.get_notes.return_value = []
    mock.add_email = MagicMock()
    mock.add_phone = MagicMock()
    mock.add_card = MagicMock()
    mock.add_note = MagicMock()
    mock.update_email = MagicMock()
    mock.update_phone = MagicMock()
    mock.update_card = MagicMock()
    mock.update_note = MagicMock()
    mock.delete_email = MagicMock()
    mock.delete_phone = MagicMock()
    mock.delete_card = MagicMock()
    mock.delete_note = MagicMock()
    return mock


@pytest.fixture
def mock_app(mock_vault: MagicMock) -> MagicMock:
    """Create a mock PassFXApp with vault."""
    app = MagicMock()
    app.vault = mock_vault
    app.push_screen = MagicMock()
    app.pop_screen = MagicMock()
    app.notify = MagicMock()
    return app


@pytest.fixture
def sample_email_credential() -> EmailCredential:
    """Create a sample email credential for testing."""
    return EmailCredential(
        label="GitHub",
        email="user@example.com",
        password="test_password_123",
        notes="Test notes",
    )


@pytest.fixture
def sample_phone_credential() -> PhoneCredential:
    """Create a sample phone credential for testing."""
    return PhoneCredential(
        label="Bank Hotline",
        phone="+1-555-123-4567",
        password="1234",
        notes="Account PIN",
    )


@pytest.fixture
def sample_credit_card() -> CreditCard:
    """Create a sample credit card for testing."""
    return CreditCard(
        label="Chase Sapphire",
        card_number="4242424242424242",
        expiry="12/25",
        cvv="123",
        cardholder_name="John Doe",
        notes="Primary card",
    )


@pytest.fixture
def sample_note() -> NoteEntry:
    """Create a sample note entry for testing."""
    return NoteEntry(
        title="Wi-Fi Password",
        content="Network: Office\nPassword: secret123",
    )


# ---------------------------------------------------------------------------
# Screen Initialization Tests
# ---------------------------------------------------------------------------


class TestPasswordsScreenInitialization:
    """Tests for PasswordsScreen initialization."""

    @pytest.mark.unit
    def test_screen_initializes_with_none_selected_row_key(self) -> None:
        """Verify screen starts with no row selected."""
        from passfx.screens.passwords import PasswordsScreen

        screen = PasswordsScreen()

        assert screen._selected_row_key is None

    @pytest.mark.unit
    def test_screen_initializes_pulse_state(self) -> None:
        """Verify screen starts with pulse state True."""
        from passfx.screens.passwords import PasswordsScreen

        screen = PasswordsScreen()

        assert screen._pulse_state is True

    @pytest.mark.unit
    def test_screen_defines_required_bindings(self) -> None:
        """Verify screen defines required key bindings."""
        from textual.binding import Binding

        from passfx.screens.passwords import PasswordsScreen

        binding_keys = [
            b.key if isinstance(b, Binding) else b[0] for b in PasswordsScreen.BINDINGS
        ]

        assert "a" in binding_keys  # Add
        assert "c" in binding_keys  # Copy
        assert "e" in binding_keys  # Edit
        assert "d" in binding_keys  # Delete
        assert "v" in binding_keys  # View
        assert "escape" in binding_keys  # Back


class TestCardsScreenInitialization:
    """Tests for CardsScreen initialization."""

    @pytest.mark.unit
    def test_screen_initializes_with_none_selected_row_key(self) -> None:
        """Verify screen starts with no row selected."""
        from passfx.screens.cards import CardsScreen

        screen = CardsScreen()

        assert screen._selected_row_key is None

    @pytest.mark.unit
    def test_screen_defines_required_bindings(self) -> None:
        """Verify screen defines required key bindings."""
        from textual.binding import Binding

        from passfx.screens.cards import CardsScreen

        binding_keys = [
            b.key if isinstance(b, Binding) else b[0] for b in CardsScreen.BINDINGS
        ]

        assert "a" in binding_keys
        assert "c" in binding_keys
        assert "e" in binding_keys
        assert "d" in binding_keys
        assert "v" in binding_keys
        assert "escape" in binding_keys


class TestPhonesScreenInitialization:
    """Tests for PhonesScreen initialization."""

    @pytest.mark.unit
    def test_screen_initializes_with_none_selected_row_key(self) -> None:
        """Verify screen starts with no row selected."""
        from passfx.screens.phones import PhonesScreen

        screen = PhonesScreen()

        assert screen._selected_row_key is None

    @pytest.mark.unit
    def test_screen_defines_required_bindings(self) -> None:
        """Verify screen defines required key bindings."""
        from textual.binding import Binding

        from passfx.screens.phones import PhonesScreen

        binding_keys = [
            b.key if isinstance(b, Binding) else b[0] for b in PhonesScreen.BINDINGS
        ]

        assert "a" in binding_keys
        assert "c" in binding_keys
        assert "e" in binding_keys
        assert "d" in binding_keys
        assert "v" in binding_keys
        assert "escape" in binding_keys


class TestNotesScreenInitialization:
    """Tests for NotesScreen initialization."""

    @pytest.mark.unit
    def test_screen_initializes_with_none_selected_row_key(self) -> None:
        """Verify screen starts with no row selected."""
        from passfx.screens.notes import NotesScreen

        screen = NotesScreen()

        assert screen._selected_row_key is None

    @pytest.mark.unit
    def test_screen_defines_required_bindings(self) -> None:
        """Verify screen defines required key bindings."""
        from textual.binding import Binding

        from passfx.screens.notes import NotesScreen

        binding_keys = [
            b.key if isinstance(b, Binding) else b[0] for b in NotesScreen.BINDINGS
        ]

        assert "a" in binding_keys
        assert "c" in binding_keys
        assert "e" in binding_keys
        assert "d" in binding_keys
        assert "v" in binding_keys
        assert "escape" in binding_keys


# ---------------------------------------------------------------------------
# Helper Function Tests
# ---------------------------------------------------------------------------


class TestRelativeTimeHelper:
    """Tests for _get_relative_time helper function."""

    @pytest.mark.unit
    def test_none_timestamp_returns_dash(self) -> None:
        """Verify None timestamp returns '-'."""
        from passfx.screens.passwords import _get_relative_time

        result = _get_relative_time(None)

        assert result == "-"

    @pytest.mark.unit
    def test_empty_timestamp_returns_dash(self) -> None:
        """Verify empty string returns '-'."""
        from passfx.screens.passwords import _get_relative_time

        result = _get_relative_time("")

        assert result == "-"

    @pytest.mark.unit
    def test_invalid_timestamp_returns_dash(self) -> None:
        """Verify invalid timestamp returns '-'."""
        from passfx.screens.passwords import _get_relative_time

        result = _get_relative_time("not-a-date")

        assert result == "-"

    @pytest.mark.unit
    def test_recent_timestamp_returns_seconds(self) -> None:
        """Verify recent timestamp returns seconds format."""
        from datetime import datetime

        from passfx.screens.passwords import _get_relative_time

        now = datetime.now().isoformat()
        result = _get_relative_time(now)

        assert "s ago" in result or result == "just now"


class TestAvatarInitialsHelper:
    """Tests for _get_avatar_initials helper function."""

    @pytest.mark.unit
    def test_empty_label_returns_question_marks(self) -> None:
        """Verify empty label returns '??'."""
        from passfx.screens.passwords import _get_avatar_initials

        result = _get_avatar_initials("")

        assert result == "??"

    @pytest.mark.unit
    def test_two_word_label_returns_first_letters(self) -> None:
        """Verify two-word label returns first letters."""
        from passfx.screens.passwords import _get_avatar_initials

        result = _get_avatar_initials("GitHub Main")

        assert result == "GM"

    @pytest.mark.unit
    def test_single_word_label_returns_first_two_chars(self) -> None:
        """Verify single word label returns first two characters."""
        from passfx.screens.passwords import _get_avatar_initials

        result = _get_avatar_initials("GitHub")

        assert result == "GI"

    @pytest.mark.unit
    def test_underscore_separator_handled(self) -> None:
        """Verify underscore-separated words are split."""
        from passfx.screens.passwords import _get_avatar_initials

        result = _get_avatar_initials("github_main")

        assert result == "GM"


class TestStrengthColorHelper:
    """Tests for _get_strength_color helper function."""

    @pytest.mark.unit
    def test_score_0_returns_red(self) -> None:
        """Verify score 0 returns red color."""
        from passfx.screens.passwords import _get_strength_color

        result = _get_strength_color(0)

        assert result == "#ef4444"

    @pytest.mark.unit
    def test_score_4_returns_green(self) -> None:
        """Verify score 4 returns green color."""
        from passfx.screens.passwords import _get_strength_color

        result = _get_strength_color(4)

        assert result == "#22c55e"

    @pytest.mark.unit
    def test_invalid_score_returns_default(self) -> None:
        """Verify invalid score returns default color."""
        from passfx.screens.passwords import _get_strength_color

        result = _get_strength_color(99)

        assert result == "#94a3b8"


# ---------------------------------------------------------------------------
# Card Validation Tests
# ---------------------------------------------------------------------------


class TestCardNumberValidation:
    """Tests for credit card number validation."""

    @pytest.mark.unit
    def test_valid_card_number_passes(self) -> None:
        """Verify valid 16-digit card passes."""
        from passfx.screens.cards import _validate_card_number

        valid, result = _validate_card_number("4242424242424242")

        assert valid is True
        assert result == "4242424242424242"

    @pytest.mark.unit
    def test_card_with_spaces_cleaned(self) -> None:
        """Verify spaces are removed from card number."""
        from passfx.screens.cards import _validate_card_number

        valid, result = _validate_card_number("4242 4242 4242 4242")

        assert valid is True
        assert result == "4242424242424242"

    @pytest.mark.unit
    def test_card_with_dashes_cleaned(self) -> None:
        """Verify dashes are removed from card number."""
        from passfx.screens.cards import _validate_card_number

        valid, result = _validate_card_number("4242-4242-4242-4242")

        assert valid is True
        assert result == "4242424242424242"

    @pytest.mark.unit
    def test_too_short_card_fails(self) -> None:
        """Verify too short card number fails."""
        from passfx.screens.cards import _validate_card_number

        valid, result = _validate_card_number("1234567890")

        assert valid is False
        assert "Invalid" in result

    @pytest.mark.unit
    def test_non_numeric_card_fails(self) -> None:
        """Verify non-numeric card number fails."""
        from passfx.screens.cards import _validate_card_number

        valid, result = _validate_card_number("abcd1234efgh5678")

        assert valid is False

    @pytest.mark.unit
    def test_thirteen_digit_card_passes(self) -> None:
        """Verify 13-digit card (some Visa) passes."""
        from passfx.screens.cards import _validate_card_number

        valid, _ = _validate_card_number("4111111111111")

        assert valid is True


class TestExpiryValidation:
    """Tests for credit card expiry validation."""

    @pytest.mark.unit
    def test_valid_expiry_mmyy_passes(self) -> None:
        """Verify MM/YY format passes."""
        from passfx.screens.cards import _validate_expiry

        valid, result = _validate_expiry("12/25")

        assert valid is True
        assert result == "12/25"

    @pytest.mark.unit
    def test_valid_expiry_no_separator_passes(self) -> None:
        """Verify MMYY format passes and is normalized."""
        from passfx.screens.cards import _validate_expiry

        valid, result = _validate_expiry("1225")

        assert valid is True
        assert result == "12/25"

    @pytest.mark.unit
    def test_expiry_with_dash_passes(self) -> None:
        """Verify MM-YY format passes."""
        from passfx.screens.cards import _validate_expiry

        valid, result = _validate_expiry("12-25")

        assert valid is True
        assert result == "12/25"

    @pytest.mark.unit
    def test_invalid_month_fails(self) -> None:
        """Verify invalid month (13) fails."""
        from passfx.screens.cards import _validate_expiry

        valid, result = _validate_expiry("13/25")

        assert valid is False
        assert "MM/YY" in result

    @pytest.mark.unit
    def test_month_zero_fails(self) -> None:
        """Verify month 00 fails."""
        from passfx.screens.cards import _validate_expiry

        valid, result = _validate_expiry("00/25")

        assert valid is False

    @pytest.mark.unit
    def test_non_numeric_expiry_fails(self) -> None:
        """Verify non-numeric expiry fails."""
        from passfx.screens.cards import _validate_expiry

        valid, _ = _validate_expiry("ab/cd")

        assert valid is False


class TestCvvValidation:
    """Tests for CVV validation."""

    @pytest.mark.unit
    def test_three_digit_cvv_passes(self) -> None:
        """Verify 3-digit CVV passes."""
        from passfx.screens.cards import _validate_cvv

        valid, result = _validate_cvv("123")

        assert valid is True
        assert result == "123"

    @pytest.mark.unit
    def test_four_digit_cvv_passes(self) -> None:
        """Verify 4-digit CVV (Amex) passes."""
        from passfx.screens.cards import _validate_cvv

        valid, result = _validate_cvv("1234")

        assert valid is True
        assert result == "1234"

    @pytest.mark.unit
    def test_two_digit_cvv_fails(self) -> None:
        """Verify 2-digit CVV fails."""
        from passfx.screens.cards import _validate_cvv

        valid, _ = _validate_cvv("12")

        assert valid is False

    @pytest.mark.unit
    def test_five_digit_cvv_fails(self) -> None:
        """Verify 5-digit CVV fails."""
        from passfx.screens.cards import _validate_cvv

        valid, _ = _validate_cvv("12345")

        assert valid is False

    @pytest.mark.unit
    def test_non_numeric_cvv_fails(self) -> None:
        """Verify non-numeric CVV fails."""
        from passfx.screens.cards import _validate_cvv

        valid, _ = _validate_cvv("abc")

        assert valid is False


# ---------------------------------------------------------------------------
# Modal Initialization Tests
# ---------------------------------------------------------------------------


class TestAddPasswordModal:
    """Tests for AddPasswordModal behavior."""

    @pytest.mark.unit
    def test_modal_defines_escape_binding(self) -> None:
        """Verify modal has escape binding for cancel."""
        from textual.binding import Binding

        from passfx.screens.passwords import AddPasswordModal

        binding_keys = [
            b.key if isinstance(b, Binding) else b[0] for b in AddPasswordModal.BINDINGS
        ]

        assert "escape" in binding_keys


class TestEditPasswordModal:
    """Tests for EditPasswordModal behavior."""

    @pytest.mark.unit
    def test_modal_stores_credential(
        self, sample_email_credential: EmailCredential
    ) -> None:
        """Verify modal stores credential reference."""
        from passfx.screens.passwords import EditPasswordModal

        modal = EditPasswordModal(sample_email_credential)

        assert modal.credential is sample_email_credential

    @pytest.mark.unit
    def test_modal_defines_escape_binding(
        self, sample_email_credential: EmailCredential
    ) -> None:
        """Verify modal has escape binding for cancel."""
        from textual.binding import Binding

        from passfx.screens.passwords import EditPasswordModal

        binding_keys = [
            b.key if isinstance(b, Binding) else b[0]
            for b in EditPasswordModal.BINDINGS
        ]

        assert "escape" in binding_keys


class TestConfirmDeleteModal:
    """Tests for ConfirmDeleteModal behavior."""

    @pytest.mark.unit
    def test_modal_stores_item_name(self) -> None:
        """Verify modal stores item name."""
        from passfx.screens.passwords import ConfirmDeleteModal

        modal = ConfirmDeleteModal("Test Item")

        assert modal.item_name == "Test Item"

    @pytest.mark.unit
    def test_modal_defines_confirmation_bindings(self) -> None:
        """Verify modal has y/n bindings for confirmation."""
        from textual.binding import Binding

        from passfx.screens.passwords import ConfirmDeleteModal

        binding_keys = [
            b.key if isinstance(b, Binding) else b[0]
            for b in ConfirmDeleteModal.BINDINGS
        ]

        assert "y" in binding_keys
        assert "n" in binding_keys
        assert "escape" in binding_keys


class TestViewPasswordModal:
    """Tests for ViewPasswordModal behavior."""

    @pytest.mark.unit
    def test_modal_stores_credential(
        self, sample_email_credential: EmailCredential
    ) -> None:
        """Verify modal stores credential reference."""
        from passfx.screens.passwords import ViewPasswordModal

        modal = ViewPasswordModal(sample_email_credential)

        assert modal.credential is sample_email_credential

    @pytest.mark.unit
    def test_modal_defines_copy_binding(self) -> None:
        """Verify modal has 'c' binding for copy."""
        from textual.binding import Binding

        from passfx.screens.passwords import ViewPasswordModal

        binding_keys = [
            b.key if isinstance(b, Binding) else b[0]
            for b in ViewPasswordModal.BINDINGS
        ]

        assert "c" in binding_keys


# ---------------------------------------------------------------------------
# Card Modal Tests
# ---------------------------------------------------------------------------


class TestAddCardModal:
    """Tests for AddCardModal behavior."""

    @pytest.mark.unit
    def test_modal_defines_escape_binding(self) -> None:
        """Verify modal has escape binding for cancel."""
        from textual.binding import Binding

        from passfx.screens.cards import AddCardModal

        binding_keys = [
            b.key if isinstance(b, Binding) else b[0] for b in AddCardModal.BINDINGS
        ]

        assert "escape" in binding_keys


class TestEditCardModal:
    """Tests for EditCardModal behavior."""

    @pytest.mark.unit
    def test_modal_stores_card(self, sample_credit_card: CreditCard) -> None:
        """Verify modal stores card reference."""
        from passfx.screens.cards import EditCardModal

        modal = EditCardModal(sample_credit_card)

        assert modal.card is sample_credit_card


class TestViewCardModal:
    """Tests for ViewCardModal behavior."""

    @pytest.mark.unit
    def test_modal_stores_card(self, sample_credit_card: CreditCard) -> None:
        """Verify modal stores card reference."""
        from passfx.screens.cards import ViewCardModal

        modal = ViewCardModal(sample_credit_card)

        assert modal.card is sample_credit_card

    @pytest.mark.unit
    def test_modal_defines_copy_binding(self) -> None:
        """Verify modal has 'c' binding for copy."""
        from textual.binding import Binding

        from passfx.screens.cards import ViewCardModal

        binding_keys = [
            b.key if isinstance(b, Binding) else b[0] for b in ViewCardModal.BINDINGS
        ]

        assert "c" in binding_keys


# ---------------------------------------------------------------------------
# Phone Modal Tests
# ---------------------------------------------------------------------------


class TestAddPhoneModal:
    """Tests for AddPhoneModal behavior."""

    @pytest.mark.unit
    def test_modal_defines_escape_binding(self) -> None:
        """Verify modal has escape binding for cancel."""
        from textual.binding import Binding

        from passfx.screens.phones import AddPhoneModal

        binding_keys = [
            b.key if isinstance(b, Binding) else b[0] for b in AddPhoneModal.BINDINGS
        ]

        assert "escape" in binding_keys


class TestEditPhoneModal:
    """Tests for EditPhoneModal behavior."""

    @pytest.mark.unit
    def test_modal_stores_credential(
        self, sample_phone_credential: PhoneCredential
    ) -> None:
        """Verify modal stores credential reference."""
        from passfx.screens.phones import EditPhoneModal

        modal = EditPhoneModal(sample_phone_credential)

        assert modal.credential is sample_phone_credential


class TestViewPhoneModal:
    """Tests for ViewPhoneModal behavior."""

    @pytest.mark.unit
    def test_modal_stores_credential(
        self, sample_phone_credential: PhoneCredential
    ) -> None:
        """Verify modal stores credential reference."""
        from passfx.screens.phones import ViewPhoneModal

        modal = ViewPhoneModal(sample_phone_credential)

        assert modal.credential is sample_phone_credential


# ---------------------------------------------------------------------------
# Note Modal Tests
# ---------------------------------------------------------------------------


class TestAddNoteModal:
    """Tests for AddNoteModal behavior."""

    @pytest.mark.unit
    def test_modal_defines_escape_binding(self) -> None:
        """Verify modal has escape binding for cancel."""
        from textual.binding import Binding

        from passfx.screens.notes import AddNoteModal

        binding_keys = [
            b.key if isinstance(b, Binding) else b[0] for b in AddNoteModal.BINDINGS
        ]

        assert "escape" in binding_keys


class TestEditNoteModal:
    """Tests for EditNoteModal behavior."""

    @pytest.mark.unit
    def test_modal_stores_note(self, sample_note: NoteEntry) -> None:
        """Verify modal stores note reference."""
        from passfx.screens.notes import EditNoteModal

        modal = EditNoteModal(sample_note)

        assert modal.note is sample_note


class TestViewNoteModal:
    """Tests for ViewNoteModal behavior."""

    @pytest.mark.unit
    def test_modal_stores_note(self, sample_note: NoteEntry) -> None:
        """Verify modal stores note reference."""
        from passfx.screens.notes import ViewNoteModal

        modal = ViewNoteModal(sample_note)

        assert modal.note is sample_note


# ---------------------------------------------------------------------------
# Card Format Helper Tests
# ---------------------------------------------------------------------------


class TestCardFormatHelpers:
    """Tests for card formatting helpers."""

    @pytest.mark.unit
    def test_format_card_number_adds_spaces(self) -> None:
        """Verify card number is formatted with spaces."""
        from passfx.screens.cards import _format_card_number

        result = _format_card_number("4242424242424242")

        assert result == "4242 4242 4242 4242"

    @pytest.mark.unit
    def test_format_card_number_handles_existing_spaces(self) -> None:
        """Verify formatting handles existing spaces."""
        from passfx.screens.cards import _format_card_number

        result = _format_card_number("4242 4242 4242 4242")

        assert result == "4242 4242 4242 4242"

    @pytest.mark.unit
    def test_get_card_type_icon_returns_icon(self) -> None:
        """Verify card type detection returns an icon."""
        from passfx.screens.cards import _get_card_type_icon

        result = _get_card_type_icon("4242424242424242")

        assert len(result) > 0

    @pytest.mark.unit
    def test_get_card_type_icon_empty_returns_default(self) -> None:
        """Verify empty card number returns default icon."""
        from passfx.screens.cards import _get_card_type_icon

        result = _get_card_type_icon("")

        assert len(result) > 0


# ---------------------------------------------------------------------------
# Credential Model Integration Tests
# ---------------------------------------------------------------------------


class TestCredentialModelIntegration:
    """Tests for credential model integration with screens."""

    @pytest.mark.unit
    def test_email_credential_has_required_fields(
        self, sample_email_credential: EmailCredential
    ) -> None:
        """Verify email credential has fields screens expect."""
        assert hasattr(sample_email_credential, "id")
        assert hasattr(sample_email_credential, "label")
        assert hasattr(sample_email_credential, "email")
        assert hasattr(sample_email_credential, "password")
        assert hasattr(sample_email_credential, "notes")
        assert hasattr(sample_email_credential, "created_at")
        assert hasattr(sample_email_credential, "updated_at")

    @pytest.mark.unit
    def test_phone_credential_has_required_fields(
        self, sample_phone_credential: PhoneCredential
    ) -> None:
        """Verify phone credential has fields screens expect."""
        assert hasattr(sample_phone_credential, "id")
        assert hasattr(sample_phone_credential, "label")
        assert hasattr(sample_phone_credential, "phone")
        assert hasattr(sample_phone_credential, "password")
        assert hasattr(sample_phone_credential, "notes")

    @pytest.mark.unit
    def test_credit_card_has_required_fields(
        self, sample_credit_card: CreditCard
    ) -> None:
        """Verify credit card has fields screens expect."""
        assert hasattr(sample_credit_card, "id")
        assert hasattr(sample_credit_card, "label")
        assert hasattr(sample_credit_card, "card_number")
        assert hasattr(sample_credit_card, "expiry")
        assert hasattr(sample_credit_card, "cvv")
        assert hasattr(sample_credit_card, "cardholder_name")
        assert hasattr(sample_credit_card, "masked_number")

    @pytest.mark.unit
    def test_note_entry_has_required_fields(self, sample_note: NoteEntry) -> None:
        """Verify note entry has fields screens expect."""
        assert hasattr(sample_note, "id")
        assert hasattr(sample_note, "title")
        assert hasattr(sample_note, "content")
        assert hasattr(sample_note, "line_count")
        assert hasattr(sample_note, "char_count")


# ---------------------------------------------------------------------------
# State Consistency Tests
# ---------------------------------------------------------------------------


class TestStateConsistency:
    """Tests for state consistency guarantees."""

    @pytest.mark.unit
    def test_passwords_screen_maintains_selection_state(self) -> None:
        """Verify PasswordsScreen maintains selection state."""
        from passfx.screens.passwords import PasswordsScreen

        screen = PasswordsScreen()

        # Initial state
        assert screen._selected_row_key is None

        # Simulate selection
        screen._selected_row_key = "test-id-123"
        assert screen._selected_row_key == "test-id-123"

        # Selection can be cleared
        screen._selected_row_key = None
        assert screen._selected_row_key is None

    @pytest.mark.unit
    def test_cards_screen_maintains_selection_state(self) -> None:
        """Verify CardsScreen maintains selection state."""
        from passfx.screens.cards import CardsScreen

        screen = CardsScreen()

        assert screen._selected_row_key is None
        screen._selected_row_key = "card-id-456"
        assert screen._selected_row_key == "card-id-456"

    @pytest.mark.unit
    def test_phones_screen_maintains_selection_state(self) -> None:
        """Verify PhonesScreen maintains selection state."""
        from passfx.screens.phones import PhonesScreen

        screen = PhonesScreen()

        assert screen._selected_row_key is None
        screen._selected_row_key = "phone-id-789"
        assert screen._selected_row_key == "phone-id-789"

    @pytest.mark.unit
    def test_notes_screen_maintains_selection_state(self) -> None:
        """Verify NotesScreen maintains selection state."""
        from passfx.screens.notes import NotesScreen

        screen = NotesScreen()

        assert screen._selected_row_key is None
        screen._selected_row_key = "note-id-abc"
        assert screen._selected_row_key == "note-id-abc"


# ---------------------------------------------------------------------------
# Screen Binding Action Tests
# ---------------------------------------------------------------------------


class TestPasswordsScreenBindingActions:
    """Tests for PasswordsScreen action methods."""

    @pytest.mark.unit
    def test_action_back_defined(self) -> None:
        """Verify action_back method exists."""
        from passfx.screens.passwords import PasswordsScreen

        screen = PasswordsScreen()

        assert hasattr(screen, "action_back")
        assert callable(screen.action_back)

    @pytest.mark.unit
    def test_action_add_defined(self) -> None:
        """Verify action_add method exists."""
        from passfx.screens.passwords import PasswordsScreen

        screen = PasswordsScreen()

        assert hasattr(screen, "action_add")
        assert callable(screen.action_add)

    @pytest.mark.unit
    def test_action_edit_defined(self) -> None:
        """Verify action_edit method exists."""
        from passfx.screens.passwords import PasswordsScreen

        screen = PasswordsScreen()

        assert hasattr(screen, "action_edit")
        assert callable(screen.action_edit)

    @pytest.mark.unit
    def test_action_delete_defined(self) -> None:
        """Verify action_delete method exists."""
        from passfx.screens.passwords import PasswordsScreen

        screen = PasswordsScreen()

        assert hasattr(screen, "action_delete")
        assert callable(screen.action_delete)

    @pytest.mark.unit
    def test_action_copy_defined(self) -> None:
        """Verify action_copy method exists."""
        from passfx.screens.passwords import PasswordsScreen

        screen = PasswordsScreen()

        assert hasattr(screen, "action_copy")
        assert callable(screen.action_copy)

    @pytest.mark.unit
    def test_action_view_defined(self) -> None:
        """Verify action_view method exists."""
        from passfx.screens.passwords import PasswordsScreen

        screen = PasswordsScreen()

        assert hasattr(screen, "action_view")
        assert callable(screen.action_view)


class TestCardsScreenBindingActions:
    """Tests for CardsScreen action methods."""

    @pytest.mark.unit
    def test_all_crud_actions_defined(self) -> None:
        """Verify all CRUD action methods exist."""
        from passfx.screens.cards import CardsScreen

        screen = CardsScreen()

        assert hasattr(screen, "action_back")
        assert hasattr(screen, "action_add")
        assert hasattr(screen, "action_edit")
        assert hasattr(screen, "action_delete")
        assert hasattr(screen, "action_copy")
        assert hasattr(screen, "action_view")


class TestPhonesScreenBindingActions:
    """Tests for PhonesScreen action methods."""

    @pytest.mark.unit
    def test_all_crud_actions_defined(self) -> None:
        """Verify all CRUD action methods exist."""
        from passfx.screens.phones import PhonesScreen

        screen = PhonesScreen()

        assert hasattr(screen, "action_back")
        assert hasattr(screen, "action_add")
        assert hasattr(screen, "action_edit")
        assert hasattr(screen, "action_delete")
        assert hasattr(screen, "action_copy")
        assert hasattr(screen, "action_view")


class TestNotesScreenBindingActions:
    """Tests for NotesScreen action methods."""

    @pytest.mark.unit
    def test_all_crud_actions_defined(self) -> None:
        """Verify all CRUD action methods exist."""
        from passfx.screens.notes import NotesScreen

        screen = NotesScreen()

        assert hasattr(screen, "action_back")
        assert hasattr(screen, "action_add")
        assert hasattr(screen, "action_edit")
        assert hasattr(screen, "action_delete")
        assert hasattr(screen, "action_copy")
        assert hasattr(screen, "action_view")


# ---------------------------------------------------------------------------
# Modal Color Configuration Tests
# ---------------------------------------------------------------------------


class TestModalColorConfigurations:
    """Tests for modal color configurations."""

    @pytest.mark.unit
    def test_view_password_modal_has_colors(self) -> None:
        """Verify ViewPasswordModal has color configuration."""
        from passfx.screens.passwords import ViewPasswordModal

        assert hasattr(ViewPasswordModal, "COLORS")
        assert "border" in ViewPasswordModal.COLORS
        assert "accent" in ViewPasswordModal.COLORS

    @pytest.mark.unit
    def test_view_card_modal_has_colors(self) -> None:
        """Verify ViewCardModal has color configuration."""
        from passfx.screens.cards import ViewCardModal

        assert hasattr(ViewCardModal, "COLORS")
        assert "border" in ViewCardModal.COLORS

    @pytest.mark.unit
    def test_view_phone_modal_has_colors(self) -> None:
        """Verify ViewPhoneModal has color configuration."""
        from passfx.screens.phones import ViewPhoneModal

        assert hasattr(ViewPhoneModal, "COLORS")
        assert "border" in ViewPhoneModal.COLORS

    @pytest.mark.unit
    def test_view_note_modal_has_colors(self) -> None:
        """Verify ViewNoteModal has color configuration."""
        from passfx.screens.notes import ViewNoteModal

        assert hasattr(ViewNoteModal, "COLORS")
        assert "border" in ViewNoteModal.COLORS


# ---------------------------------------------------------------------------
# Screen Method Presence Tests (for interface contracts)
# ---------------------------------------------------------------------------


class TestPasswordsScreenInterfaceContract:
    """Tests for PasswordsScreen interface contract."""

    @pytest.mark.unit
    def test_refresh_table_method_exists(self) -> None:
        """Verify _refresh_table method exists."""
        from passfx.screens.passwords import PasswordsScreen

        screen = PasswordsScreen()

        assert hasattr(screen, "_refresh_table")

    @pytest.mark.unit
    def test_update_inspector_method_exists(self) -> None:
        """Verify _update_inspector method exists."""
        from passfx.screens.passwords import PasswordsScreen

        screen = PasswordsScreen()

        assert hasattr(screen, "_update_inspector")

    @pytest.mark.unit
    def test_get_selected_credential_method_exists(self) -> None:
        """Verify _get_selected_credential method exists."""
        from passfx.screens.passwords import PasswordsScreen

        screen = PasswordsScreen()

        assert hasattr(screen, "_get_selected_credential")

    @pytest.mark.unit
    def test_update_row_indicators_method_exists(self) -> None:
        """Verify _update_row_indicators method exists."""
        from passfx.screens.passwords import PasswordsScreen

        screen = PasswordsScreen()

        assert hasattr(screen, "_update_row_indicators")

    @pytest.mark.unit
    def test_initialize_selection_method_exists(self) -> None:
        """Verify _initialize_selection method exists."""
        from passfx.screens.passwords import PasswordsScreen

        screen = PasswordsScreen()

        assert hasattr(screen, "_initialize_selection")

    @pytest.mark.unit
    def test_update_pulse_method_exists(self) -> None:
        """Verify _update_pulse method exists."""
        from passfx.screens.passwords import PasswordsScreen

        screen = PasswordsScreen()

        assert hasattr(screen, "_update_pulse")


class TestCardsScreenInterfaceContract:
    """Tests for CardsScreen interface contract."""

    @pytest.mark.unit
    def test_required_methods_exist(self) -> None:
        """Verify required methods exist."""
        from passfx.screens.cards import CardsScreen

        screen = CardsScreen()

        assert hasattr(screen, "_refresh_table")
        assert hasattr(screen, "_update_inspector")
        assert hasattr(screen, "_get_selected_card")
        assert hasattr(screen, "_update_row_indicators")


class TestPhonesScreenInterfaceContract:
    """Tests for PhonesScreen interface contract."""

    @pytest.mark.unit
    def test_required_methods_exist(self) -> None:
        """Verify required methods exist."""
        from passfx.screens.phones import PhonesScreen

        screen = PhonesScreen()

        assert hasattr(screen, "_refresh_table")
        assert hasattr(screen, "_update_inspector")
        assert hasattr(screen, "_get_selected_credential")
        assert hasattr(screen, "_update_row_indicators")


class TestNotesScreenInterfaceContract:
    """Tests for NotesScreen interface contract."""

    @pytest.mark.unit
    def test_required_methods_exist(self) -> None:
        """Verify required methods exist."""
        from passfx.screens.notes import NotesScreen

        screen = NotesScreen()

        assert hasattr(screen, "_refresh_table")
        assert hasattr(screen, "_update_inspector")
        assert hasattr(screen, "_get_selected_entry")
        assert hasattr(screen, "_update_row_indicators")


# ---------------------------------------------------------------------------
# Avatar Color Consistency Tests
# ---------------------------------------------------------------------------


class TestAvatarColorConsistency:
    """Tests for avatar background color consistency."""

    @pytest.mark.unit
    def test_same_label_returns_same_color(self) -> None:
        """Verify same label always returns same color."""
        from passfx.screens.passwords import _get_avatar_bg_color

        color1 = _get_avatar_bg_color("GitHub")
        color2 = _get_avatar_bg_color("GitHub")

        assert color1 == color2

    @pytest.mark.unit
    def test_different_labels_may_differ(self) -> None:
        """Verify different labels can return different colors."""
        from passfx.screens.passwords import _get_avatar_bg_color

        color1 = _get_avatar_bg_color("GitHub")
        color2 = _get_avatar_bg_color("Twitter")

        # Different labels CAN have same color due to hash collision,
        # but the function should return valid colors
        assert color1.startswith("#")
        assert color2.startswith("#")

    @pytest.mark.unit
    def test_empty_label_returns_valid_color(self) -> None:
        """Verify empty label returns a valid color."""
        from passfx.screens.passwords import _get_avatar_bg_color

        color = _get_avatar_bg_color("")

        assert color.startswith("#")
        assert len(color) == 7


# ---------------------------------------------------------------------------
# Validation Edge Cases
# ---------------------------------------------------------------------------


class TestValidationEdgeCases:
    """Tests for validation edge cases."""

    @pytest.mark.unit
    def test_card_number_max_length(self) -> None:
        """Verify 19-digit card passes (max length)."""
        from passfx.screens.cards import _validate_card_number

        valid, _ = _validate_card_number("1234567890123456789")

        assert valid is True

    @pytest.mark.unit
    def test_card_number_too_long_fails(self) -> None:
        """Verify 20+ digit card fails."""
        from passfx.screens.cards import _validate_card_number

        valid, _ = _validate_card_number("12345678901234567890")

        assert valid is False

    @pytest.mark.unit
    def test_expiry_single_digit_month_handled(self) -> None:
        """Verify single digit month normalization."""
        from passfx.screens.cards import _validate_expiry

        valid, result = _validate_expiry("0125")

        assert valid is True
        assert result == "01/25"

    @pytest.mark.unit
    def test_expiry_whitespace_handled(self) -> None:
        """Verify whitespace in expiry is handled."""
        from passfx.screens.cards import _validate_expiry

        valid, result = _validate_expiry(" 12/25 ")

        assert valid is True
        assert result == "12/25"


# ---------------------------------------------------------------------------
# Screen Class Inheritance Tests
# ---------------------------------------------------------------------------


class TestScreenClassInheritance:
    """Tests for screen class inheritance."""

    @pytest.mark.unit
    def test_passwords_screen_inherits_from_screen(self) -> None:
        """Verify PasswordsScreen inherits from Textual Screen."""
        from textual.screen import Screen

        from passfx.screens.passwords import PasswordsScreen

        assert issubclass(PasswordsScreen, Screen)

    @pytest.mark.unit
    def test_cards_screen_inherits_from_screen(self) -> None:
        """Verify CardsScreen inherits from Textual Screen."""
        from textual.screen import Screen

        from passfx.screens.cards import CardsScreen

        assert issubclass(CardsScreen, Screen)

    @pytest.mark.unit
    def test_phones_screen_inherits_from_screen(self) -> None:
        """Verify PhonesScreen inherits from Textual Screen."""
        from textual.screen import Screen

        from passfx.screens.phones import PhonesScreen

        assert issubclass(PhonesScreen, Screen)

    @pytest.mark.unit
    def test_notes_screen_inherits_from_screen(self) -> None:
        """Verify NotesScreen inherits from Textual Screen."""
        from textual.screen import Screen

        from passfx.screens.notes import NotesScreen

        assert issubclass(NotesScreen, Screen)


class TestModalClassInheritance:
    """Tests for modal class inheritance."""

    @pytest.mark.unit
    def test_add_password_modal_inherits_from_modal_screen(self) -> None:
        """Verify AddPasswordModal inherits from ModalScreen."""
        from textual.screen import ModalScreen

        from passfx.screens.passwords import AddPasswordModal

        assert issubclass(AddPasswordModal, ModalScreen)

    @pytest.mark.unit
    def test_edit_password_modal_inherits_from_modal_screen(self) -> None:
        """Verify EditPasswordModal inherits from ModalScreen."""
        from textual.screen import ModalScreen

        from passfx.screens.passwords import EditPasswordModal

        assert issubclass(EditPasswordModal, ModalScreen)

    @pytest.mark.unit
    def test_confirm_delete_modal_inherits_from_modal_screen(self) -> None:
        """Verify ConfirmDeleteModal inherits from ModalScreen."""
        from textual.screen import ModalScreen

        from passfx.screens.passwords import ConfirmDeleteModal

        assert issubclass(ConfirmDeleteModal, ModalScreen)

    @pytest.mark.unit
    def test_view_password_modal_inherits_from_modal_screen(self) -> None:
        """Verify ViewPasswordModal inherits from ModalScreen."""
        from textual.screen import ModalScreen

        from passfx.screens.passwords import ViewPasswordModal

        assert issubclass(ViewPasswordModal, ModalScreen)


# ---------------------------------------------------------------------------
# Data Binding Pattern Tests
# ---------------------------------------------------------------------------


class TestDataBindingPatterns:
    """Tests for data binding patterns in screens."""

    @pytest.mark.unit
    def test_on_data_table_row_highlighted_method_exists(self) -> None:
        """Verify event handler method exists on PasswordsScreen."""
        from passfx.screens.passwords import PasswordsScreen

        screen = PasswordsScreen()

        assert hasattr(screen, "on_data_table_row_highlighted")
        assert callable(screen.on_data_table_row_highlighted)

    @pytest.mark.unit
    def test_cards_row_highlighted_handler_exists(self) -> None:
        """Verify event handler method exists on CardsScreen."""
        from passfx.screens.cards import CardsScreen

        screen = CardsScreen()

        assert hasattr(screen, "on_data_table_row_highlighted")

    @pytest.mark.unit
    def test_phones_row_highlighted_handler_exists(self) -> None:
        """Verify event handler method exists on PhonesScreen."""
        from passfx.screens.phones import PhonesScreen

        screen = PhonesScreen()

        assert hasattr(screen, "on_data_table_row_highlighted")

    @pytest.mark.unit
    def test_notes_row_highlighted_handler_exists(self) -> None:
        """Verify event handler method exists on NotesScreen."""
        from passfx.screens.notes import NotesScreen

        screen = NotesScreen()

        assert hasattr(screen, "on_data_table_row_highlighted")
