"""Unit tests for Wallet sync methods (sync_to_writer, set_active).

Reference: wallet-toolbox/test/wallet/sync/Wallet.sync.test.ts
"""

import pytest

from bsv_wallet_toolbox import Wallet
from bsv_wallet_toolbox.errors import InvalidParameterError


@pytest.fixture
def valid_sync_args():
    """Fixture providing valid sync arguments."""
    return {"writer": "mock_writer", "options": {"batchSize": 100}}


@pytest.fixture
def valid_set_active_args():
    """Fixture providing valid set active arguments."""
    return {"storage": "mock_storage", "backupFirst": False}


@pytest.fixture
def invalid_sync_cases():
    """Fixture providing various invalid sync arguments."""
    return [
        # Invalid writer
        {"writer": "", "options": {}},  # Empty writer
        {"writer": None, "options": {}},  # None writer
        {"writer": 123, "options": {}},  # Wrong writer type
        {"writer": [], "options": {}},  # Wrong writer type
        {"writer": {}, "options": {}},  # Wrong writer type
        # Invalid options
        {"writer": "valid_writer", "options": None},  # None options
        {"writer": "valid_writer", "options": "not_dict"},  # Wrong options type
        {"writer": "valid_writer", "options": 123},  # Wrong options type
        # Missing keys
        {"options": {}},  # Missing writer
        {"writer": "valid_writer"},  # Missing options
        {},  # Missing both
        # Invalid option values
        {"writer": "valid_writer", "options": {"batchSize": 0}},  # Zero batch size
        {"writer": "valid_writer", "options": {"batchSize": -1}},  # Negative batch size
        {"writer": "valid_writer", "options": {"batchSize": "not_number"}},  # Wrong batch size type
    ]


@pytest.fixture
def invalid_set_active_cases():
    """Fixture providing various invalid set active arguments."""
    return [
        # Invalid storage
        {"storage": "", "backupFirst": False},  # Empty storage
        {"storage": None, "backupFirst": False},  # None storage
        {"storage": 123, "backupFirst": False},  # Wrong storage type
        {"storage": [], "backupFirst": False},  # Wrong storage type
        {"storage": {}, "backupFirst": False},  # Wrong storage type
        # Invalid backup_first
        {"storage": "valid_storage", "backupFirst": None},  # None backup_first
        {"storage": "valid_storage", "backupFirst": "not_bool"},  # Wrong backup_first type
        {"storage": "valid_storage", "backupFirst": 123},  # Wrong backup_first type
        # Missing keys
        {"backupFirst": False},  # Missing storage
        {"storage": "valid_storage"},  # Missing backup_first
        {},  # Missing both
        # Extra keys (should be ignored)
        {"storage": "valid_storage", "backupFirst": False, "extra": "param"},
    ]


@pytest.fixture
def destination_storage() -> str:
    """Fixture for destination storage (placeholder)."""
    # Return a string identifier for testing
    return "destination_storage"


@pytest.fixture
def backup_storage() -> str:
    """Fixture for backup storage (placeholder)."""
    # Return a string identifier for testing
    return "backup_storage"


@pytest.fixture
def original_storage() -> str:
    """Fixture for original storage (placeholder)."""
    # Return a string identifier for testing
    return "original_storage"


class TestWalletSyncToWriter:
    """Test suite for Wallet.sync_to_writer method."""

    def test_sync_initial_then_no_changes_then_one_change(self, _wallet: Wallet, destination_storage) -> None:
        """Given: Source wallet and empty destination storage
           When: Call sync_to_writer multiple times with different states
           Then: First sync inserts all data, second sync has no changes, third sync only new data

        Reference: wallet-toolbox/test/wallet/sync/Wallet.sync.test.ts
                   test('0 syncToWriter initial-no changes-1 change')

        Note: This test requires:
        - Source wallet with populated data
        - Destination storage (empty initially)
        - Ability to add data between syncs
        """
        # Given - Initial sync
        # When
        result1 = _wallet.sync_to_writer({"writer": destination_storage, "options": {}})

        # Then
        assert result1["inserts"] > 1000  # Initial data
        assert result1["updates"] == 2

        # Given - No changes sync
        # When
        result2 = _wallet.sync_to_writer({"writer": destination_storage, "options": {}})

        # Then
        assert result2["inserts"] == 0  # No new data
        assert result2["updates"] == 0

        # Given - Add one change
        # ... add test output basket ...
        # When
        result3 = _wallet.sync_to_writer({"writer": destination_storage, "options": {}})

        # Then
        assert result3["inserts"] == 1  # One new item
        assert result3["updates"] == 0


class TestWalletSetActive:
    """Test suite for Wallet.set_active method."""

    @pytest.mark.skip(reason="Requires multiple storage providers setup")
    def test_set_active_to_backup_and_back_without_backup_first(
        self, _wallet: Wallet, backup_storage, original_storage
    ) -> None:
        """Given: Original wallet and empty backup storage
           When: Call set_active to switch to backup and back to original (twice)
           Then: Data is synced correctly in both directions

        Reference: wallet-toolbox/test/wallet/sync/Wallet.sync.test.ts
                   test('1a setActive to backup and back to original without backup first')

        Note: This test requires:
        - Original wallet with data
        - Empty backup storage
        - Multiple setActive calls to verify bidirectional sync
        """
        # Given
        # Original wallet is active
        # Backup storage is empty

        # When - Switch to backup (first time)
        _wallet.set_active(backup_storage, backup_first=False)

        # Then
        # Backup should now have all data from original

        # When - Switch back to original
        _wallet.set_active(original_storage, backup_first=False)

        # Then
        # Original should remain unchanged (no new data in backup)

        # When - Repeat the process
        _wallet.set_active(backup_storage, backup_first=False)
        _wallet.set_active(original_storage, backup_first=False)

        # Then
        # Should complete successfully with no errors

    @pytest.mark.skip(reason="Requires multiple storage providers setup")
    def test_set_active_to_backup_and_back_with_backup_first(
        self, _wallet: Wallet, backup_storage, original_storage
    ) -> None:
        """Given: Original wallet and backup that was initialized with backup_first=True
           When: Call set_active to switch to backup and back to original (twice)
           Then: Data is synced correctly with backup-first semantics

        Reference: wallet-toolbox/test/wallet/sync/Wallet.sync.test.ts
                   test('1b setActive to backup and back to original with backup first')

        Note: This test requires:
        - Original wallet with data
        - Backup storage initialized with backup_first flag
        - Multiple setActive calls to verify backup-first behavior
        """
        # Given
        # Original wallet is active
        # Backup storage initialized with backup_first=True

        # When - Switch to backup (first time)
        _wallet.set_active(backup_storage, backup_first=True)

        # Then
        # Backup-first semantics applied

        # When - Switch back to original
        _wallet.set_active(original_storage, backup_first=False)

        # Then
        # Original updated from backup if needed

        # When - Repeat the process
        _wallet.set_active(backup_storage, backup_first=True)
        _wallet.set_active(original_storage, backup_first=False)

        # Then
        # Should complete successfully with backup-first semantics maintained

    def test_sync_to_writer_invalid_params_empty_writer_raises_error(self, wallet_with_storage: Wallet) -> None:
        """Given: SyncToWriterArgs with empty writer
        When: Call sync_to_writer
        Then: Raises InvalidParameterError
        """
        # Given
        invalid_args = {"writer": "", "options": {}}

        # When/Then
        with pytest.raises((InvalidParameterError, ValueError)):
            wallet_with_storage.sync_to_writer(invalid_args)

    def test_sync_to_writer_invalid_params_none_writer_raises_error(self, wallet_with_storage: Wallet) -> None:
        """Given: SyncToWriterArgs with None writer
        When: Call sync_to_writer
        Then: Raises InvalidParameterError or TypeError
        """
        # Given
        invalid_args = {"writer": None, "options": {}}

        # When/Then
        with pytest.raises((InvalidParameterError, TypeError)):
            wallet_with_storage.sync_to_writer(invalid_args)

    def test_sync_to_writer_invalid_params_wrong_writer_type_raises_error(self, wallet_with_storage: Wallet) -> None:
        """Given: SyncToWriterArgs with wrong writer type
        When: Call sync_to_writer
        Then: Raises InvalidParameterError or TypeError
        """
        # Given - Test various invalid types
        invalid_types = [123, [], {}, True, 45.67]

        for invalid_writer in invalid_types:
            invalid_args = {"writer": invalid_writer, "options": {}}

            # When/Then
            with pytest.raises((InvalidParameterError, TypeError)):
                wallet_with_storage.sync_to_writer(invalid_args)

    def test_sync_to_writer_invalid_params_none_options_raises_error(self, wallet_with_storage: Wallet) -> None:
        """Given: SyncToWriterArgs with None options
        When: Call sync_to_writer
        Then: Raises InvalidParameterError or TypeError
        """
        # Given
        invalid_args = {"writer": "valid_writer", "options": None}

        # When/Then
        with pytest.raises((InvalidParameterError, TypeError)):
            wallet_with_storage.sync_to_writer(invalid_args)

    def test_sync_to_writer_invalid_params_wrong_options_type_raises_error(self, wallet_with_storage: Wallet) -> None:
        """Given: SyncToWriterArgs with wrong options type
        When: Call sync_to_writer
        Then: Raises InvalidParameterError or TypeError
        """
        # Given - Test various invalid types
        invalid_types = [123, "string", [], True, 45.67]

        for invalid_options in invalid_types:
            invalid_args = {"writer": "valid_writer", "options": invalid_options}

            # When/Then
            with pytest.raises((InvalidParameterError, TypeError)):
                wallet_with_storage.sync_to_writer(invalid_args)

    def test_sync_to_writer_invalid_params_missing_writer_key_raises_error(self, wallet_with_storage: Wallet) -> None:
        """Given: SyncToWriterArgs missing writer key
        When: Call sync_to_writer
        Then: Raises InvalidParameterError or KeyError
        """
        # Given
        invalid_args = {"options": {}}

        # When/Then
        with pytest.raises((InvalidParameterError, KeyError, TypeError)):
            wallet_with_storage.sync_to_writer(invalid_args)

    def test_sync_to_writer_invalid_params_missing_options_key_raises_error(self, wallet_with_storage: Wallet) -> None:
        """Given: SyncToWriterArgs missing options key
        When: Call sync_to_writer
        Then: Raises InvalidParameterError or KeyError
        """
        # Given
        invalid_args = {"writer": "valid_writer"}

        # When/Then
        with pytest.raises((InvalidParameterError, KeyError, TypeError)):
            wallet_with_storage.sync_to_writer(invalid_args)

    def test_sync_to_writer_invalid_params_empty_args_raises_error(self, wallet_with_storage: Wallet) -> None:
        """Given: Empty SyncToWriterArgs
        When: Call sync_to_writer
        Then: Raises InvalidParameterError or KeyError
        """
        # Given
        invalid_args = {}

        # When/Then
        with pytest.raises((InvalidParameterError, KeyError, TypeError)):
            wallet_with_storage.sync_to_writer(invalid_args)

    def test_sync_to_writer_invalid_params_zero_batch_size_raises_error(self, wallet_with_storage: Wallet) -> None:
        """Given: SyncToWriterArgs with zero batch size
        When: Call sync_to_writer
        Then: Raises InvalidParameterError
        """
        # Given
        invalid_args = {"writer": "valid_writer", "options": {"batchSize": 0}}

        # When/Then
        with pytest.raises((InvalidParameterError, ValueError)):
            wallet_with_storage.sync_to_writer(invalid_args)

    def test_sync_to_writer_invalid_params_negative_batch_size_raises_error(self, wallet_with_storage: Wallet) -> None:
        """Given: SyncToWriterArgs with negative batch size
        When: Call sync_to_writer
        Then: Raises InvalidParameterError
        """
        # Given
        invalid_args = {"writer": "valid_writer", "options": {"batchSize": -1}}

        # When/Then
        with pytest.raises((InvalidParameterError, ValueError)):
            wallet_with_storage.sync_to_writer(invalid_args)

    def test_sync_to_writer_invalid_params_wrong_batch_size_type_raises_error(
        self, wallet_with_storage: Wallet
    ) -> None:
        """Given: SyncToWriterArgs with wrong batch size type
        When: Call sync_to_writer
        Then: Raises InvalidParameterError or TypeError
        """
        # Given
        invalid_args = {"writer": "valid_writer", "options": {"batchSize": "not_number"}}

        # When/Then
        with pytest.raises((InvalidParameterError, TypeError)):
            wallet_with_storage.sync_to_writer(invalid_args)

    def test_sync_to_writer_valid_params_extra_options_ignored(self, wallet_with_storage: Wallet) -> None:
        """Given: SyncToWriterArgs with extra options
        When: Call sync_to_writer
        Then: Extra options are ignored
        """
        # Given
        args = {"writer": "valid_writer", "options": {"batchSize": 100, "extraOption": "ignored", "anotherOption": 123}}

        # When/Then - Should not raise error (method may not be implemented but params should validate)
        # Note: Since method is not implemented, we just check that parameter validation doesn't fail
        try:
            wallet_with_storage.sync_to_writer(args)
        except NotImplementedError:
            pass  # Expected since method is not implemented
        except (InvalidParameterError, TypeError, ValueError):
            pytest.fail("Valid parameters should not raise parameter validation errors")

    def test_set_active_invalid_params_empty_storage_raises_error(self, wallet_with_storage: Wallet) -> None:
        """Given: SetActiveArgs with empty storage
        When: Call set_active
        Then: Raises InvalidParameterError
        """
        # Given
        invalid_args = {"storage": "", "backupFirst": False}

        # When/Then
        with pytest.raises((InvalidParameterError, ValueError)):
            wallet_with_storage.set_active(invalid_args)

    def test_set_active_invalid_params_none_storage_raises_error(self, wallet_with_storage: Wallet) -> None:
        """Given: SetActiveArgs with None storage
        When: Call set_active
        Then: Raises InvalidParameterError or TypeError
        """
        # Given
        invalid_args = {"storage": None, "backupFirst": False}

        # When/Then
        with pytest.raises((InvalidParameterError, TypeError)):
            wallet_with_storage.set_active(invalid_args)

    def test_set_active_invalid_params_wrong_storage_type_raises_error(self, wallet_with_storage: Wallet) -> None:
        """Given: SetActiveArgs with wrong storage type
        When: Call set_active
        Then: Raises InvalidParameterError or TypeError
        """
        # Given - Test various invalid types
        invalid_types = [123, [], {}, True, 45.67]

        for invalid_storage in invalid_types:
            invalid_args = {"storage": invalid_storage, "backupFirst": False}

            # When/Then
            with pytest.raises((InvalidParameterError, TypeError)):
                wallet_with_storage.set_active(invalid_args)

    def test_set_active_invalid_params_none_backup_first_raises_error(self, wallet_with_storage: Wallet) -> None:
        """Given: SetActiveArgs with None backup_first
        When: Call set_active
        Then: Raises InvalidParameterError or TypeError
        """
        # Given
        invalid_args = {"storage": "valid_storage", "backupFirst": None}

        # When/Then
        with pytest.raises((InvalidParameterError, TypeError)):
            wallet_with_storage.set_active(invalid_args)

    def test_set_active_invalid_params_wrong_backup_first_type_raises_error(self, wallet_with_storage: Wallet) -> None:
        """Given: SetActiveArgs with wrong backup_first type
        When: Call set_active
        Then: Raises InvalidParameterError or TypeError
        """
        # Given - Test various invalid types
        invalid_types = [123, "string", [], {}, 45.67]

        for invalid_backup_first in invalid_types:
            invalid_args = {"storage": "valid_storage", "backupFirst": invalid_backup_first}

            # When/Then
            with pytest.raises((InvalidParameterError, TypeError)):
                wallet_with_storage.set_active(invalid_args)

    def test_set_active_invalid_params_missing_storage_key_raises_error(self, wallet_with_storage: Wallet) -> None:
        """Given: SetActiveArgs missing storage key
        When: Call set_active
        Then: Raises InvalidParameterError or KeyError
        """
        # Given
        invalid_args = {"backupFirst": False}

        # When/Then
        with pytest.raises((InvalidParameterError, KeyError, TypeError)):
            wallet_with_storage.set_active(invalid_args)

    def test_set_active_invalid_params_missing_backup_first_key_raises_error(self, wallet_with_storage: Wallet) -> None:
        """Given: SetActiveArgs missing backup_first key
        When: Call set_active
        Then: Raises InvalidParameterError or KeyError
        """
        # Given
        invalid_args = {"storage": "valid_storage"}

        # When/Then
        with pytest.raises((InvalidParameterError, KeyError, TypeError)):
            wallet_with_storage.set_active(invalid_args)

    def test_set_active_invalid_params_empty_args_raises_error(self, wallet_with_storage: Wallet) -> None:
        """Given: Empty SetActiveArgs
        When: Call set_active
        Then: Raises InvalidParameterError or KeyError
        """
        # Given
        invalid_args = {}

        # When/Then
        with pytest.raises((InvalidParameterError, KeyError, TypeError)):
            wallet_with_storage.set_active(invalid_args)

    @pytest.mark.skip(reason="Requires multiple storage providers setup")
    def test_set_active_valid_params_backup_first_true(self, wallet_with_storage: Wallet) -> None:
        """Given: SetActiveArgs with backup_first=True
        When: Call set_active
        Then: Should handle backup_first flag correctly
        """
        # Given
        args = {"storage": "valid_storage", "backupFirst": True}

        # When/Then - Should not raise error (method may not be implemented but params should validate)
        try:
            wallet_with_storage.set_active(args)
        except NotImplementedError:
            pass  # Expected since method is not implemented
        except (InvalidParameterError, TypeError, ValueError):
            pytest.fail("Valid parameters should not raise parameter validation errors")

    @pytest.mark.skip(reason="Requires multiple storage providers setup")
    def test_set_active_valid_params_backup_first_false(self, wallet_with_storage: Wallet) -> None:
        """Given: SetActiveArgs with backup_first=False
        When: Call set_active
        Then: Should handle backup_first flag correctly
        """
        # Given
        args = {"storage": "valid_storage", "backupFirst": False}

        # When/Then - Should not raise error (method may not be implemented but params should validate)
        try:
            wallet_with_storage.set_active(args)
        except NotImplementedError:
            pass  # Expected since method is not implemented
        except (InvalidParameterError, TypeError, ValueError):
            pytest.fail("Valid parameters should not raise parameter validation errors")

    @pytest.mark.skip(reason="Requires multiple storage providers setup")
    def test_set_active_valid_params_extra_parameters_ignored(self, wallet_with_storage: Wallet) -> None:
        """Given: SetActiveArgs with extra parameters
        When: Call set_active
        Then: Extra parameters are ignored
        """
        # Given
        args = {"storage": "valid_storage", "backupFirst": False, "extraParam": "ignored", "anotherParam": 123}

        # When/Then - Should not raise error (method may not be implemented but params should validate)
        try:
            wallet_with_storage.set_active(args)
        except NotImplementedError:
            pass  # Expected since method is not implemented
        except (InvalidParameterError, TypeError, ValueError):
            pytest.fail("Valid parameters should not raise parameter validation errors")
