from typing import Any

"""Phase 7: Specialized Services & Advanced Features (Recreated)."""
from tests.test_constants import COUNT_TWO


class TestTraceabilityMatrix:
    """Test traceability matrix service."""

    def test_build_matrix(self) -> None:
        """Test building traceability matrix."""
        requirements = [1, 2, 3]
        tests = [10, 11, 12]
        mapping = {1: [10, 11], 2: [11], 3: [12]}

        def build_matrix(reqs: Any, tests: Any, mapping: Any) -> None:
            matrix = {req: [0] * len(tests) for req in reqs}
            for req, test_list in mapping.items():
                for test in test_list:
                    if test in tests:
                        matrix[req][tests.index(test)] = 1
            return matrix

        result = build_matrix(requirements, tests, mapping)
        assert result[1][0] == 1
        assert result[3][2] == 1

    def test_coverage_analysis(self) -> None:
        """Test coverage analysis."""
        matrix = {1: [1, 1, 0], 2: [0, 1, 1], 3: [0, 0, 1]}

        def analyze(matrix: Any) -> None:
            coverage = {}
            for req, tests in matrix.items():
                coverage[req] = sum(tests) / len(tests)
            return coverage

        result = analyze(matrix)
        assert result[1] == COUNT_TWO / 3
        assert result[3] == 1 / 3

    def test_gap_identification(self) -> None:
        """Test gap identification."""
        matrix = {1: [1, 1, 0], 2: [0, 0, 0], 3: [0, 0, 1]}

        def find_gaps(matrix: Any) -> None:
            return [req for req, tests in matrix.items() if sum(tests) == 0]

        result = find_gaps(matrix)
        assert 2 in result


class TestQueryOptimization:
    """Test query optimization."""

    def test_index_selection(self) -> None:
        """Test index selection."""
        indexes = {"status": {"selectivity": 0.2}, "user_id": {"selectivity": 0.05}, "timestamp": {"selectivity": 0.3}}

        def select_best(query_filters: Any) -> None:
            return max(query_filters, key=lambda idx: indexes[idx]["selectivity"])

        result = select_best(["status", "timestamp"])
        assert result == "timestamp"

    def test_join_order(self) -> None:
        """Test join order optimization."""
        tables = {"users": {"rows": 1000}, "orders": {"rows": 50000}, "items": {"rows": 100000}}

        def optimize_order(tables: Any) -> None:
            return sorted(tables.items(), key=lambda x: x[1]["rows"])

        result = optimize_order(tables)
        assert result[0][0] == "users"
        assert result[-1][0] == "items"


class TestEventStreaming:
    """Test event streaming."""

    def test_event_queue(self) -> None:
        """Test event queue."""
        queue = []

        def enqueue(event: Any) -> None:
            queue.append(event)

        def dequeue() -> None:
            return queue.pop(0) if queue else None

        enqueue("event1")
        enqueue("event2")
        assert dequeue() == "event1"

    def test_event_filtering(self) -> None:
        """Test event filtering."""
        events = [
            {"type": "CREATE", "entity": "user"},
            {"type": "UPDATE", "entity": "user"},
            {"type": "DELETE", "entity": "item"},
        ]

        def filter_events(events: Any, event_type: Any) -> None:
            return [e for e in events if e["type"] == event_type]

        result = filter_events(events, "CREATE")
        assert len(result) == 1


class TestAdvancedFiltering:
    """Test advanced filtering."""

    def test_complex_filters(self) -> None:
        """Test complex filters."""
        items = [
            {"id": 1, "status": "active", "priority": 5},
            {"id": 2, "status": "inactive", "priority": 3},
            {"id": 3, "status": "active", "priority": 8},
        ]

        def apply_filters(items: Any, filters: Any) -> None:
            result = items
            for field, condition in filters.items():
                if "eq" in condition:
                    result = [i for i in result if i[field] == condition["eq"]]
                if "min" in condition:
                    result = [i for i in result if i[field] >= condition["min"]]
            return result

        filters = {"status": {"eq": "active"}, "priority": {"min": 5}}
        result = apply_filters(items, filters)
        assert len(result) == COUNT_TWO

    def test_range_filtering(self) -> None:
        """Test range filtering."""
        data = list(range(1, 101))

        def filter_range(data: Any, start: Any, end: Any) -> None:
            return [x for x in data if start <= x <= end]

        result = filter_range(data, 25, 75)
        assert len(result) == 51


class TestPerformanceTuning:
    """Test performance tuning."""

    def test_slow_query_detection(self) -> None:
        """Test slow query detection."""
        queries = [
            {"sql": "SELECT *", "duration_ms": 5},
            {"sql": "SELECT * JOIN", "duration_ms": 500},
            {"sql": "SELECT COUNT(*)", "duration_ms": 10},
            {"sql": "SELECT large", "duration_ms": 2000},
        ]

        def find_slow(queries: Any, threshold_ms: Any = 100) -> None:
            return [q for q in queries if q["duration_ms"] > threshold_ms]

        result = find_slow(queries)
        assert len(result) == COUNT_TWO

    def test_cache_effectiveness(self) -> None:
        """Test cache effectiveness."""
        stats = {"hits": 450, "misses": 50}

        def hit_rate(stats: Any) -> None:
            total = stats["hits"] + stats["misses"]
            return stats["hits"] / total if total > 0 else 0

        result = hit_rate(stats)
        assert result == 0.9


class TestDataTransformation:
    """Test data transformation."""

    def test_schema_transform(self) -> None:
        """Test schema transformation."""
        old = {"user_id": "int", "user_name": "string"}

        def transform(old: Any) -> None:
            return {k.replace("user_", ""): v for k, v in old.items()}

        result = transform(old)
        assert "id" in result
        assert "user_name" not in result

    def test_normalization(self) -> None:
        """Test normalization."""
        data = [{"name": "JOHN", "email": "JOHN@EXAMPLE.COM"}]

        def normalize(data: Any) -> None:
            return [{k: v.lower() if isinstance(v, str) else v for k, v in d.items()} for d in data]

        result = normalize(data)
        assert result[0]["name"] == "john"


class TestAuditTrail:
    """Test audit trail."""

    def test_audit_logging(self) -> None:
        """Test audit logging."""
        audit_log = []

        def log_action(action: Any, user: Any) -> None:
            audit_log.append({"action": action, "user": user})

        log_action("create", "user1")
        log_action("update", "user2")

        assert len(audit_log) == COUNT_TWO
        assert audit_log[0]["action"] == "create"

    def test_lineage_tracking(self) -> None:
        """Test lineage tracking."""
        lineage = {"item_1": {"created_by": "user1", "modified_by": ["user2", "user3"]}}

        def get_lineage(item_id: Any) -> None:
            return lineage.get(f"item_{item_id}")

        result = get_lineage(1)
        assert result["created_by"] == "user1"
        assert "user2" in result["modified_by"]
