from pathlib import Path
from unittest.mock import patch

import pytest
from sqlalchemy import create_engine
from sqlalchemy.orm import sessionmaker
from datetime import datetime

from pilgrim.models.entry import Entry
from pilgrim.database import Base
from pilgrim.models.travel_diary import TravelDiary
from pilgrim.models.entry import Entry
from pilgrim.models.photo import Photo
from pilgrim.utils import DirectoryManager


# Todos os imports necessários para as fixtures devem estar aqui
# ...

@pytest.fixture(scope="function")
def db_session():
    """Esta fixture agora está disponível para TODOS os testes."""
    engine = create_engine("sqlite:///:memory:")
    Base.metadata.create_all(engine)
    Session = sessionmaker(bind=engine)
    session = Session()
    yield session
    session.close()
    Base.metadata.drop_all(engine)

@pytest.fixture
def populated_db_session(db_session):
    """Esta também fica disponível para todos."""
    travel_diary = TravelDiary(name="My Travel Diary", directory_name="viagem-teste")
    db_session.add(travel_diary)
    db_session.commit()
    return db_session

@pytest.fixture
def session_with_one_diary(db_session):
    diary = TravelDiary(name="Diário de Teste", directory_name="diario_de_teste")
    db_session.add(diary)
    db_session.commit()
    db_session.refresh(diary)
    return db_session, diary


@pytest.fixture
def session_with_photos(session_with_one_diary):
    session, diary = session_with_one_diary

    # Usamos a mesma raiz de diretório que o mock do teste espera
    diaries_root = "/fake/diaries_root"

    photo1 = Photo(
        # CORREÇÃO: O caminho agora inclui a raiz e a subpasta 'images'
        filepath=f"{diaries_root}/{diary.directory_name}/images/p1.jpg",
        name="Foto 1",
        photo_hash="hash1",
        fk_travel_diary_id=diary.id
    )
    photo2 = Photo(
        filepath=f"{diaries_root}/{diary.directory_name}/images/p2.jpg",
        name="Foto 2",
        photo_hash="hash2",
        fk_travel_diary_id=diary.id
    )

    session.add_all([photo1, photo2])
    session.commit()

    return session, [photo1, photo2]

@pytest.fixture
def backup_test_env_files_only(tmp_path):
    fake_config_dir = tmp_path / "config"
    fake_diaries_root = tmp_path / "diaries"
    fake_db_path = fake_config_dir / "database.db"
    fake_config_dir.mkdir()
    fake_diaries_root.mkdir()
    with patch.object(DirectoryManager, 'get_database_path', return_value=fake_db_path), \
            patch.object(DirectoryManager, 'get_config_directory', return_value=fake_config_dir), \
            patch.object(DirectoryManager, 'get_diaries_root', return_value=fake_diaries_root):
        engine = create_engine(f"sqlite:///{fake_db_path}")
        Base.metadata.create_all(engine)
        Session = sessionmaker(bind=engine)
        session = Session()

        diary = TravelDiary(name="Viagem de Teste", directory_name="viagem_de_teste")
        session.add(diary)
        session.commit()
        photo_file_path_str = str(fake_diaries_root / "viagem_de_teste" / "images" / "foto1.jpg")
        photo = Photo(filepath=photo_file_path_str, name="Foto 1", photo_hash="hash123", fk_travel_diary_id=diary.id)
        session.add(photo)
        session.commit()
        photo_file_path = Path(photo_file_path_str)
        photo_file_path.parent.mkdir(parents=True)
        photo_file_path.touch()
        yield {
            "session": session,
            "db_path": fake_db_path,
            "config_dir": fake_config_dir,
            "diaries_root": fake_diaries_root,
        }
        session.close()

@pytest.fixture
def entry_with_photo_references(session_with_one_diary):
    session, diary = session_with_one_diary
    photo1 = Photo(filepath="p1.jpg", name="P1", photo_hash="aaaaaaaa", fk_travel_diary_id=diary.id)
    photo2 = Photo(filepath="p2.jpg", name="P2", photo_hash="bbbbbbbb", fk_travel_diary_id=diary.id)
    session.add_all([photo1, photo2])
    session.flush()
    entry = Entry(
        title="Entrada com Fotos",
        text="Texto com a foto A [[photo::aaaaaaaa]] e também a foto B [[photo::bbbbbbbb]].",
        date=datetime.now(),
        travel_diary_id=diary.id,
        photos=[photo1, photo2]
    )
    session.add(entry)
    session.commit()
    session.refresh(entry)

    return session, entry


@pytest.fixture
def session_with_multiple_entries(session_with_one_diary):
    session, diary = session_with_one_diary
    session.query(Entry).delete()
    entry1 = Entry(title="Entrada 1", text="Texto 1", date=datetime.now(), travel_diary_id=diary.id)
    entry2 = Entry(title="Entrada 2", text="Texto 2", date=datetime.now(), travel_diary_id=diary.id)

    session.add_all([entry1, entry2])
    session.commit()

    return session, diary