# ca_core/group_member.py

def add_group_member(cursor, group_id: int, person_id: int, role: str):
    cursor.execute(
        "INSERT INTO group_member (group_id, person_id, role) VALUES (%s, %s, %s)",
        (group_id, person_id, role)
    )

def remove_group_member(cursor, group_id: int, person_id: int):
    cursor.execute(
        "DELETE FROM group_member WHERE group_id = %s AND person_id = %s",
        (group_id, person_id)
    )

def get_groups_for_person(cursor, person_id: int):
    cursor.execute(
        "SELECT group_id, role FROM group_member WHERE person_id = %s",
        (person_id,)
    )
    return cursor.fetchall()

def get_members_of_group(cursor, group_id: int):
    cursor.execute(
        "SELECT person_id, role FROM group_member WHERE group_id = %s",
        (group_id,)
    )
    return cursor.fetchall()