import math
from datetime import datetime
from pprint import pprint

import pytest
from sqlalchemy.orm import Session

from dibbler.models import Product, Transaction, User
from dibbler.models.Transaction import DEFAULT_PENALTY_MULTIPLIER_PERCENTAGE
from dibbler.queries import joint_buy_product, user_balance, user_balance_log
from dibbler.queries.user_balance import _joint_transaction_query, _non_joint_transaction_query

# TODO: see if we can use pytest_runtest_makereport to print the "user_balance_log"s
#       only on failures instead of inlining it in every test function


def insert_test_data(sql_session: Session) -> tuple[User, User, User, Product]:
    user = User("Test User")
    user2 = User("Test User 2")
    user3 = User("Test User 3")
    product = Product("1234567890123", "Test Product")

    sql_session.add_all([user, user2, user3, product])
    sql_session.commit()

    return user, user2, user3, product


def _product_cost(
    per_product: int,
    product_count: int,
    interest_rate_percent: int,
    apply_penalty: bool,
    penalty_multiplier_percent: int,
) -> int:
    base_cost = per_product * product_count
    cost_with_interest = math.ceil(base_cost * (interest_rate_percent / 100))
    if apply_penalty:
        total_cost = math.ceil(cost_with_interest * (penalty_multiplier_percent / 100))
    else:
        total_cost = cost_with_interest
    return total_cost


def test_non_joint_transaction_query(sql_session) -> None:
    user1, user2, user3, product = insert_test_data(sql_session)

    transactions = [
        Transaction.adjust_balance(
            time=datetime(2023, 10, 1, 10, 0, 0),
            user_id=user1.id,
            amount=100,
        ),
        Transaction.adjust_balance(
            time=datetime(2023, 10, 1, 10, 0, 0),
            user_id=user2.id,
            amount=50,
        ),
        Transaction.add_product(
            time=datetime(2023, 10, 1, 10, 0, 1),
            user_id=user2.id,
            amount=70,
            product_id=product.id,
            product_count=3,
            per_product=30,
        ),
        Transaction.transfer(
            time=datetime(2023, 10, 1, 10, 0, 2),
            user_id=user1.id,
            transfer_user_id=user2.id,
            amount=50,
        ),
        Transaction.transfer(
            time=datetime(2023, 10, 1, 10, 0, 3),
            user_id=user2.id,
            transfer_user_id=user3.id,
            amount=30,
        ),
    ]

    sql_session.add_all(transactions)
    sql_session.commit()

    t = transactions

    result = [
        row[0]
        for row in sql_session.execute(
            _non_joint_transaction_query(
                user_id=user1.id,
                use_cache=False,
            ),
        ).all()
    ]
    assert result == [t[0].id, t[3].id]

    result = [
        row[0]
        for row in sql_session.execute(
            _non_joint_transaction_query(
                user_id=user2.id,
                use_cache=False,
            ),
        ).all()
    ]
    assert result == [t[1].id, t[2].id, t[3].id, t[4].id]

    result = [
        row[0]
        for row in sql_session.execute(
            _non_joint_transaction_query(
                user_id=user3.id,
                use_cache=False,
            ),
        ).all()
    ]
    assert result == [t[4].id]


def test_joint_transaction_query(sql_session: Session) -> None:
    user1, user2, user3, product = insert_test_data(sql_session)

    j1 = joint_buy_product(
        sql_session,
        product=product,
        product_count=3,
        instigator=user1,
        users=[user1, user2],
    )

    j2 = joint_buy_product(
        sql_session,
        product=product,
        product_count=2,
        instigator=user1,
        users=[user1, user1, user2],
    )

    j3 = joint_buy_product(
        sql_session,
        product=product,
        product_count=2,
        instigator=user1,
        users=[user1, user3, user3],
    )

    j4 = joint_buy_product(
        sql_session,
        product=product,
        product_count=2,
        instigator=user2,
        users=[user2, user3, user3],
    )

    result = list(
        sql_session.execute(
            _joint_transaction_query(
                user_id=user1.id,
                use_cache=False,
            ),
        ).all(),
    )
    assert list(result) == [
        (j1[0].id, 1, 2),
        (j2[0].id, 2, 3),
        (j3[0].id, 1, 3),
    ]

    result = list(
        sql_session.execute(
            _joint_transaction_query(
                user_id=user2.id,
                use_cache=False,
            ),
        ).all(),
    )
    assert list(result) == [
        (j1[0].id, 1, 2),
        (j2[0].id, 1, 3),
        (j4[0].id, 1, 3),
    ]

    result = list(
        sql_session.execute(
            _joint_transaction_query(
                user_id=user3.id,
                use_cache=False,
            ),
        ).all(),
    )
    assert list(result) == [
        (j3[0].id, 2, 3),
        (j4[0].id, 2, 3),
    ]


def test_user_balance_no_transactions(sql_session: Session) -> None:
    user, *_ = insert_test_data(sql_session)

    pprint(user_balance_log(sql_session, user))

    balance = user_balance(sql_session, user)

    assert balance == 0


def test_user_balance_basic_history(sql_session: Session) -> None:
    user, _, _, product = insert_test_data(sql_session)

    transactions = [
        Transaction.adjust_balance(
            time=datetime(2023, 10, 1, 10, 0, 0),
            user_id=user.id,
            amount=100,
        ),
        Transaction.add_product(
            time=datetime(2023, 10, 1, 10, 0, 1),
            user_id=user.id,
            product_id=product.id,
            amount=27,
            per_product=27,
            product_count=1,
        ),
    ]

    sql_session.add_all(transactions)
    sql_session.commit()

    pprint(user_balance_log(sql_session, user))

    balance = user_balance(sql_session, user)

    assert balance == 100 + 27


def test_user_balance_with_transfers(sql_session: Session) -> None:
    user1, user2, _, product = insert_test_data(sql_session)

    transactions = [
        Transaction.adjust_balance(
            time=datetime(2023, 10, 1, 10, 0, 0),
            user_id=user1.id,
            amount=100,
        ),
        Transaction.transfer(
            time=datetime(2023, 10, 1, 10, 0, 1),
            user_id=user1.id,
            transfer_user_id=user2.id,
            amount=50,
        ),
        Transaction.transfer(
            time=datetime(2023, 10, 1, 10, 0, 2),
            user_id=user2.id,
            transfer_user_id=user1.id,
            amount=30,
        ),
    ]

    sql_session.add_all(transactions)
    sql_session.commit()

    pprint(user_balance_log(sql_session, user1))

    user1_balance = user_balance(sql_session, user1)
    assert user1_balance == 100 - 50 + 30

    pprint(user_balance_log(sql_session, user2))

    user2_balance = user_balance(sql_session, user2)
    assert user2_balance == 50 - 30


@pytest.mark.skip(reason="Not yet implemented")
def test_user_balance_complex_history(sql_session: Session) -> None: ...


def test_user_balance_penalty(sql_session: Session) -> None:
    user, _, _, product = insert_test_data(sql_session)

    transactions = [
        Transaction.add_product(
            time=datetime(2023, 10, 1, 10, 0, 0),
            user_id=user.id,
            product_id=product.id,
            amount=27,
            per_product=27,
            product_count=1,
        ),
        Transaction.adjust_balance(
            time=datetime(2023, 10, 1, 11, 0, 0),
            user_id=user.id,
            amount=-200,
        ),
        # Penalized, pays 2x the price (default penalty)
        Transaction.buy_product(
            time=datetime(2023, 10, 1, 12, 0, 0),
            user_id=user.id,
            product_id=product.id,
            product_count=1,
        ),
    ]
    sql_session.add_all(transactions)
    sql_session.commit()

    pprint(user_balance_log(sql_session, user))

    assert user_balance(sql_session, user) == 27 - 200 - (
        27 * (DEFAULT_PENALTY_MULTIPLIER_PERCENTAGE // 100)
    )


def test_user_balance_changing_penalty(sql_session: Session) -> None:
    user, _, _, product = insert_test_data(sql_session)

    transactions = [
        Transaction.add_product(
            time=datetime(2023, 10, 1, 10, 0, 0),
            user_id=user.id,
            product_id=product.id,
            amount=27,
            per_product=27,
            product_count=1,
        ),
        Transaction.adjust_balance(
            time=datetime(2023, 10, 1, 11, 0, 0),
            user_id=user.id,
            amount=-200,
        ),
        # Penalized, pays 2x the price (default penalty)
        Transaction.buy_product(
            time=datetime(2023, 10, 1, 12, 0, 0),
            user_id=user.id,
            product_id=product.id,
            product_count=1,
        ),
        Transaction.adjust_penalty(
            time=datetime(2023, 10, 1, 13, 0, 0),
            user_id=user.id,
            penalty_multiplier_percent=300,
            penalty_threshold=-100,
        ),
        # Penalized, pays 3x the price
        Transaction.buy_product(
            time=datetime(2023, 10, 1, 14, 0, 0),
            user_id=user.id,
            product_id=product.id,
            product_count=1,
        ),
    ]

    sql_session.add_all(transactions)
    sql_session.commit()

    pprint(user_balance_log(sql_session, user))

    assert user_balance(sql_session, user) == 27 - 200 - (
        27 * (DEFAULT_PENALTY_MULTIPLIER_PERCENTAGE // 100)
    ) - (27 * 3)


def test_user_balance_interest(sql_session: Session) -> None:
    user, _, _, product = insert_test_data(sql_session)

    transactions = [
        Transaction.add_product(
            time=datetime(2023, 10, 1, 10, 0, 0),
            user_id=user.id,
            product_id=product.id,
            amount=27,
            per_product=27,
            product_count=1,
        ),
        Transaction.adjust_interest(
            time=datetime(2023, 10, 1, 11, 0, 0),
            user_id=user.id,
            interest_rate_percent=110,
        ),
        Transaction.buy_product(
            time=datetime(2023, 10, 1, 12, 0, 0),
            user_id=user.id,
            product_id=product.id,
            product_count=1,
        ),
    ]
    sql_session.add_all(transactions)
    sql_session.commit()

    pprint(user_balance_log(sql_session, user))

    assert user_balance(sql_session, user) == 27 - math.ceil(27 * 1.1)


def test_user_balance_changing_interest(sql_session: Session) -> None:
    user, _, _, product = insert_test_data(sql_session)

    transactions = [
        Transaction.add_product(
            time=datetime(2023, 10, 1, 10, 0, 0),
            user_id=user.id,
            product_id=product.id,
            amount=27 * 3,
            per_product=27,
            product_count=3,
        ),
        Transaction.adjust_interest(
            time=datetime(2023, 10, 1, 11, 0, 0),
            user_id=user.id,
            interest_rate_percent=110,
        ),
        # Pays 1.1x the price
        Transaction.buy_product(
            time=datetime(2023, 10, 1, 12, 0, 0),
            user_id=user.id,
            product_id=product.id,
            product_count=1,
        ),
        Transaction.adjust_interest(
            time=datetime(2023, 10, 1, 13, 0, 0),
            user_id=user.id,
            interest_rate_percent=120,
        ),
        # Pays 1.2x the price
        Transaction.buy_product(
            time=datetime(2023, 10, 1, 14, 0, 0),
            user_id=user.id,
            product_id=product.id,
            product_count=1,
        ),
    ]
    sql_session.add_all(transactions)
    sql_session.commit()

    pprint(user_balance_log(sql_session, user))

    assert user_balance(sql_session, user) == 27 * 3 - math.ceil(27 * 1.1) - math.ceil(27 * 1.2)


def test_user_balance_penalty_interest_combined(sql_session: Session) -> None:
    user, _, _, product = insert_test_data(sql_session)

    transactions = [
        Transaction.add_product(
            time=datetime(2023, 10, 1, 10, 0, 0),
            user_id=user.id,
            product_id=product.id,
            amount=27,
            per_product=27,
            product_count=1,
        ),
        Transaction.adjust_interest(
            time=datetime(2023, 10, 1, 11, 0, 0),
            user_id=user.id,
            interest_rate_percent=110,
        ),
        Transaction.adjust_balance(
            time=datetime(2023, 10, 1, 12, 0, 0),
            user_id=user.id,
            amount=-200,
        ),
        # Penalized, pays 2x the price (default penalty)
        # Pays 1.1x the price
        Transaction.buy_product(
            time=datetime(2023, 10, 1, 13, 0, 0),
            user_id=user.id,
            product_id=product.id,
            product_count=1,
        ),
    ]
    sql_session.add_all(transactions)
    sql_session.commit()

    pprint(user_balance_log(sql_session, user))

    assert user_balance(sql_session, user) == (
        27 - 200 - math.ceil(27 * (DEFAULT_PENALTY_MULTIPLIER_PERCENTAGE // 100) * 1.1)
    )


def test_user_balance_joint_transaction_single_user(sql_session: Session) -> None:
    user, _, _, product = insert_test_data(sql_session)

    transactions = [
        Transaction.add_product(
            time=datetime(2023, 10, 1, 10, 0, 0),
            user_id=user.id,
            product_id=product.id,
            amount=27 * 3,
            per_product=27,
            product_count=3,
        ),
    ]
    sql_session.add_all(transactions)
    sql_session.commit()

    joint_buy_product(
        sql_session,
        instigator=user,
        users=[user],
        product=product,
        product_count=2,
    )

    pprint(user_balance_log(sql_session, user))

    assert user_balance(sql_session, user) == (27 * 3) - (27 * 2)


def test_user_balance_joint_transactions_multiple_users(sql_session: Session) -> None:
    user, user2, user3, product = insert_test_data(sql_session)

    transactions = [
        Transaction.add_product(
            time=datetime(2023, 10, 1, 10, 0, 0),
            user_id=user.id,
            product_id=product.id,
            amount=27 * 3,
            per_product=27,
            product_count=3,
        ),
    ]
    sql_session.add_all(transactions)
    sql_session.commit()

    joint_buy_product(
        sql_session,
        instigator=user,
        users=[user, user2, user3],
        product=product,
        product_count=2,
    )

    pprint(user_balance_log(sql_session, user))

    assert user_balance(sql_session, user) == (27 * 3) - math.ceil((27 * 2) / 3)


def test_user_balance_joint_transactions_multiple_times_self(sql_session: Session) -> None:
    user, user2, _, product = insert_test_data(sql_session)

    transactions = [
        Transaction.add_product(
            time=datetime(2023, 10, 1, 10, 0, 0),
            user_id=user.id,
            product_id=product.id,
            amount=27 * 3,
            per_product=27,
            product_count=3,
        ),
    ]
    sql_session.add_all(transactions)
    sql_session.commit()

    joint_buy_product(
        sql_session,
        instigator=user,
        users=[user, user, user2],
        product=product,
        product_count=2,
    )

    pprint(user_balance_log(sql_session, user))

    assert user_balance(sql_session, user) == (27 * 3) - math.ceil((27 * 2) * (2 / 3))


def test_user_balance_joint_transactions_interest(sql_session: Session) -> None:
    user, user2, _, product = insert_test_data(sql_session)

    transactions = [
        Transaction.add_product(
            time=datetime(2023, 10, 1, 10, 0, 0),
            user_id=user.id,
            product_id=product.id,
            amount=27 * 3,
            per_product=27,
            product_count=3,
        ),
        Transaction.adjust_interest(
            time=datetime(2023, 10, 1, 11, 0, 0),
            user_id=user.id,
            interest_rate_percent=110,
        ),
    ]
    sql_session.add_all(transactions)
    sql_session.commit()

    joint_buy_product(
        sql_session,
        instigator=user,
        users=[user, user2],
        product=product,
        product_count=2,
    )

    pprint(user_balance_log(sql_session, user))

    assert user_balance(sql_session, user) == (27 * 3) - math.ceil(math.ceil(27 * 2 / 2) * 1.1)


def test_user_balance_joint_transactions_changing_interest(sql_session: Session) -> None:
    user, user2, _, product = insert_test_data(sql_session)

    transactions = [
        Transaction.add_product(
            time=datetime(2023, 10, 1, 10, 0, 0),
            user_id=user.id,
            product_id=product.id,
            amount=27 * 4,
            per_product=27,
            product_count=4,
        ),
        # Pays 1.1x the price
        Transaction.adjust_interest(
            time=datetime(2023, 10, 1, 11, 0, 0),
            user_id=user.id,
            interest_rate_percent=110,
        ),
    ]
    sql_session.add_all(transactions)
    sql_session.commit()

    joint_buy_product(
        sql_session,
        instigator=user,
        users=[user, user2],
        product=product,
        product_count=2,
    )

    transactions = [
        # Pays 1.2x the price
        Transaction.adjust_interest(
            time=datetime(2023, 10, 1, 12, 0, 0),
            user_id=user.id,
            interest_rate_percent=120,
        )
    ]
    sql_session.add_all(transactions)
    sql_session.commit()

    joint_buy_product(
        sql_session,
        instigator=user,
        users=[user, user2],
        product=product,
        product_count=1,
    )

    pprint(user_balance_log(sql_session, user))

    assert user_balance(sql_session, user) == (
        (27 * 4) - math.ceil(math.ceil(27 * 2 / 2) * 1.1) - math.ceil(math.ceil(27 * 1 / 2) * 1.2)
    )


def test_user_balance_joint_transactions_penalty(sql_session: Session) -> None:
    user, user2, _, product = insert_test_data(sql_session)

    transactions = [
        Transaction.add_product(
            time=datetime(2023, 10, 1, 10, 0, 0),
            user_id=user.id,
            product_id=product.id,
            amount=27 * 3,
            per_product=27,
            product_count=3,
        ),
        Transaction.adjust_balance(
            time=datetime(2023, 10, 1, 11, 0, 0),
            user_id=user.id,
            amount=-200,
        ),
    ]
    sql_session.add_all(transactions)
    sql_session.commit()

    joint_buy_product(
        sql_session,
        instigator=user,
        users=[user, user2],
        product=product,
        product_count=2,
    )

    pprint(user_balance_log(sql_session, user))

    assert user_balance(sql_session, user) == (
        (27 * 3)
        - 200
        - math.ceil(math.ceil(27 * 2 / 2) * (DEFAULT_PENALTY_MULTIPLIER_PERCENTAGE // 100))
    )


@pytest.mark.skip(reason="Not yet implemented")
def test_user_balance_joint_transactions_changing_penalty(sql_session: Session) -> None: ...


@pytest.mark.skip(reason="Not yet implemented")
def test_user_balance_joint_transactions_penalty_interest_combined(
    sql_session: Session,
) -> None: ...


@pytest.mark.skip(reason="Not yet implemented")
def test_user_balance_until(sql_session: Session) -> None: ...


@pytest.mark.skip(reason="Not yet implemented")
def test_user_balance_throw_away_products(sql_session: Session) -> None: ...