# tests/conftest.py
import os
import pytest

# ----------------------------------------------------------------------
# Import the concrete classes from your backend package.
# Adjust the import path if your package layout differs.
# ----------------------------------------------------------------------
from backend.db import DatabaseConnection
from backend.repositories import (
    MemberRepository,
    ClassificationRepository,
    ServiceTypeRepository,
    ServiceAvailabilityRepository,
)


# ----------------------------------------------------------------------
# Path to the full schema (DDL) that creates every table, including
# ServiceAvailability.
# ----------------------------------------------------------------------
@pytest.fixture(scope="session")
def schema_path() -> str:
    """Absolute path to the SQL file that creates the test schema."""
    return os.path.abspath(
        os.path.join(os.path.dirname(__file__), "..", "schema.sql")
    )


# ----------------------------------------------------------------------
# Fresh in‑memory SQLite DB with the full schema applied.
# ----------------------------------------------------------------------
@pytest.fixture
def db_connection(schema_path: str) -> DatabaseConnection:
    conn = DatabaseConnection(":memory:")

    # Load the DDL.
    with open(schema_path, "r", encoding="utf-8") as f:
        ddl = f.read()
    conn._conn.executescript(ddl)   # apply the whole schema
    conn._conn.commit()

    yield conn
    conn.close()


# ----------------------------------------------------------------------
# Seed lookup tables that have foreign‑key relationships.
# ----------------------------------------------------------------------
@pytest.fixture
def seed_lookup_tables(db_connection: DatabaseConnection):
    """
    Insert rows into lookup tables that other tables reference.
    Currently we need:
      • Classifications   – for Member tests
      • ServiceTypes     – for ServiceTypeRepository tests
      • ServiceAvailability – for the repo we are testing now
    """
    # ---- Classifications -------------------------------------------------
    classifications = [
        ("Soprano",),          # ClassificationId = 1
        ("Alto / Mezzo",),     # ClassificationId = 2
        ("Tenor",),            # ClassificationId = 3
        ("Baritone",),         # ClassificationId = 4
    ]
    for name in classifications:
        db_connection.execute(
            "INSERT INTO Classifications (ClassificationName) VALUES (?)",
            name,
        )

    # ---- ServiceTypes ----------------------------------------------------
    # These are the three time‑slot examples you asked for.
    service_types = [("9AM",), ("11AM",), ("6PM",)]
    for name in service_types:
        db_connection.execute(
            "INSERT INTO ServiceTypes (TypeName) VALUES (?)",
            name,
        )

    # ---- ServiceAvailability ---------------------------------------------
    # We need a couple of members first, otherwise the FK constraints will
    # reject the inserts.  We'll create two dummy members (Alice = 1,
    # Bob = 2) and then map them to the three slots.
    #
    # NOTE: In a real test suite you would probably use the MemberRepository
    # to create these rows, but inserting directly keeps the fixture fast and
    # independent of the Member repo implementation.
    dummy_members = [
        ("Alice", "Smith", "alice@example.com", None, None, 1, None, 1),
        ("Bob",   "Jones", "bob@example.com",   None, None, 2, None, 1),
    ]
    for (
        fn, ln, email, phone, notes,
        classification_id, is_active, member_id_placeholder,
    ) in dummy_members:
        # The MemberId column is AUTOINCREMENT, so we omit it.
        db_connection.execute(
            """
            INSERT INTO Members
                (FirstName, LastName, Email, PhoneNumber, Notes,
                 ClassificationId, IsActive)
            VALUES (?, ?, ?, ?, ?, ?, ?)
            """,
            (fn, ln, email, phone, notes, classification_id, is_active),
        )

    # At this point SQLite has assigned MemberIds 1 and 2.
    # Map them to the three service‑type slots:
    #   Alice → 9AM (id = 1) and 6PM (id = 3)
    #   Bob   → 11AM (id = 2) and 6PM (id = 3)
    availability = [
        (1, 1),  # Alice – 9AM
        (1, 3),  # Alice – 6PM
        (2, 2),  # Bob   – 11AM
        (2, 3),  # Bob   – 6PM
    ]
    for member_id, service_type_id in availability:
        db_connection.execute(
            """
            INSERT INTO ServiceAvailability (MemberId, ServiceTypeId)
            VALUES (?, ?)
            """,
            (member_id, service_type_id),
        )

    # Commit everything so downstream fixtures see the data.
    db_connection._conn.commit()


# ----------------------------------------------------------------------
# Repository factories – each receives the same fresh DB that already has
# the lookup data seeded.
# ----------------------------------------------------------------------
@pytest.fixture
def member_repo(
    db_connection: DatabaseConnection,
    seed_lookup_tables,
) -> MemberRepository:
    return MemberRepository(db_connection)


@pytest.fixture
def classification_repo(
    db_connection: DatabaseConnection,
    seed_lookup_tables,
) -> ClassificationRepository:
    return ClassificationRepository(db_connection)


@pytest.fixture
def service_type_repo(
    db_connection: DatabaseConnection,
    seed_lookup_tables,
) -> ServiceTypeRepository:
    return ServiceTypeRepository(db_connection)


@pytest.fixture
def service_availability_repo(
    db_connection: DatabaseConnection,
    seed_lookup_tables,
) -> ServiceAvailabilityRepository:
    return ServiceAvailabilityRepository(db_connection)