test_task_crm/tests/services/test_analytics_service.py

"""Unit tests for AnalyticsService."""
from __future__ import annotations

from collections.abc import AsyncGenerator
from datetime import datetime, timedelta, timezone
from decimal import Decimal

import pytest
import pytest_asyncio
from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker, create_async_engine
from sqlalchemy.pool import StaticPool

from app.models import Base
from app.models.contact import Contact
from app.models.deal import Deal, DealStage, DealStatus
from app.models.organization import Organization
from app.models.organization_member import OrganizationMember, OrganizationRole
from app.models.user import User
from app.repositories.analytics_repo import AnalyticsRepository
from app.services.analytics_service import AnalyticsService


@pytest_asyncio.fixture()
async def session() -> AsyncGenerator[AsyncSession, None]:
    engine = create_async_engine(
        "sqlite+aiosqlite:///:memory:", future=True, poolclass=StaticPool
    )
    async with engine.begin() as conn:
        await conn.run_sync(Base.metadata.create_all)
    Session = async_sessionmaker(engine, expire_on_commit=False)
    async with Session() as session:
        yield session
    await engine.dispose()


async def _seed_data(session: AsyncSession) -> tuple[int, int, int]:
    org = Organization(name="Analytics Org")
    user = User(email="analytics@example.com", hashed_password="hashed", name="Analyst", is_active=True)
    session.add_all([org, user])
    await session.flush()

    member = OrganizationMember(organization_id=org.id, user_id=user.id, role=OrganizationRole.OWNER)
    contact = Contact(organization_id=org.id, owner_id=user.id, name="Client", email="client@example.com")
    session.add_all([member, contact])
    await session.flush()

    now = datetime.now(timezone.utc)
    deals = [
        Deal(
            organization_id=org.id,
            contact_id=contact.id,
            owner_id=user.id,
            title="Qual 1",
            amount=Decimal("100"),
            status=DealStatus.NEW,
            stage=DealStage.QUALIFICATION,
            created_at=now - timedelta(days=5),
        ),
        Deal(
            organization_id=org.id,
            contact_id=contact.id,
            owner_id=user.id,
            title="Qual 2",
            amount=Decimal("150"),
            status=DealStatus.NEW,
            stage=DealStage.QUALIFICATION,
            created_at=now - timedelta(days=3),
        ),
        Deal(
            organization_id=org.id,
            contact_id=contact.id,
            owner_id=user.id,
            title="Proposal",
            amount=Decimal("200"),
            status=DealStatus.IN_PROGRESS,
            stage=DealStage.PROPOSAL,
            created_at=now - timedelta(days=15),
        ),
        Deal(
            organization_id=org.id,
            contact_id=contact.id,
            owner_id=user.id,
            title="Negotiation Won",
            amount=Decimal("500"),
            status=DealStatus.WON,
            stage=DealStage.NEGOTIATION,
            created_at=now - timedelta(days=2),
        ),
        Deal(
            organization_id=org.id,
            contact_id=contact.id,
            owner_id=user.id,
            title="Negotiation Won No Amount",
            amount=None,
            status=DealStatus.WON,
            stage=DealStage.NEGOTIATION,
            created_at=now - timedelta(days=1),
        ),
        Deal(
            organization_id=org.id,
            contact_id=contact.id,
            owner_id=user.id,
            title="Closed Lost",
            amount=Decimal("300"),
            status=DealStatus.LOST,
            stage=DealStage.CLOSED,
            created_at=now - timedelta(days=40),
        ),
    ]
    session.add_all(deals)
    await session.commit()
    return org.id, user.id, contact.id


@pytest.mark.asyncio
async def test_deal_summary_returns_expected_metrics(session: AsyncSession) -> None:
    org_id, _, _ = await _seed_data(session)
    service = AnalyticsService(repository=AnalyticsRepository(session))

    summary = await service.get_deal_summary(org_id, days=30)

    assert summary.total_deals == 6
    status_map = {item.status: item for item in summary.by_status}
    assert status_map[DealStatus.NEW].count == 2
    assert Decimal(status_map[DealStatus.NEW].amount_sum) == Decimal("250")
    assert status_map[DealStatus.WON].count == 2
    assert Decimal(summary.won.amount_sum) == Decimal("500")
    assert Decimal(summary.won.average_amount) == Decimal("500")
    assert summary.new_deals.count == 5  # все кроме старой закрытой сделки
    assert summary.new_deals.days == 30


@pytest.mark.asyncio
async def test_funnel_breakdown_contains_stage_conversions(session: AsyncSession) -> None:
    org_id, _, _ = await _seed_data(session)
    service = AnalyticsService(repository=AnalyticsRepository(session))

    funnel = await service.get_deal_funnel(org_id)

    assert len(funnel) == 4
    qual = next(item for item in funnel if item.stage == DealStage.QUALIFICATION)
    assert qual.total == 2
    assert qual.by_status[DealStatus.NEW] == 2
    assert qual.conversion_to_next == 50.0

    proposal = next(item for item in funnel if item.stage == DealStage.PROPOSAL)
    assert proposal.total == 1
    assert proposal.by_status[DealStatus.IN_PROGRESS] == 1
    assert proposal.conversion_to_next == 200.0

    last_stage = next(item for item in funnel if item.stage == DealStage.CLOSED)
    assert last_stage.conversion_to_next is None