"""Unit-тесты stock forecast."""

from __future__ import annotations

import unittest

from app import create_app, db
from app.models import ComponentStock
from app.services.analytics.stock_forecast import build_stock_forecast
from app.services.daily_plan.skips import skip_ingredient
from app.services.setup_state import mark_setup_complete
from app.timeutil import utc_now_naive
from tests.helpers.dispenser_recipe_fixtures import (
    E2E_DISP_COMP,
    E2E_DISP_RECIPE_1,
    seed_dispenser_period_recipes,
)
from tests.helpers.zootech_test_helpers import ZootechTestConfig


class AnalyticsStockForecastTests(unittest.TestCase):
    def setUp(self) -> None:
        self.app = create_app(ZootechTestConfig)
        self.ctx = self.app.app_context()
        self.ctx.push()
        db.create_all()
        mark_setup_complete(self.app)
        seed_dispenser_period_recipes()
        db.session.add(
            ComponentStock(
                component_id=E2E_DISP_COMP,
                component_name="E2E Disp компонент",
                total_kg=100.0,
                baseline_consumed_kg=0.0,
                stocktake_at=utc_now_naive(),
                updated_at=utc_now_naive(),
                updated_by="system",
            )
        )
        db.session.commit()

    def tearDown(self) -> None:
        db.session.remove()
        db.drop_all()
        self.ctx.pop()

    def test_forecast_includes_adjusted_days(self) -> None:
        data = build_stock_forecast(plan_date="2026-06-07")
        self.assertIn("items", data)
        item = next((i for i in data["items"] if i["component_id"] == E2E_DISP_COMP), None)
        self.assertIsNotNone(item)
        self.assertIn("daysLeftAdjusted", item)
        self.assertIn("daysLeftAdjustedLabel", item)

    def test_skip_changes_plan_today(self) -> None:
        before = build_stock_forecast(plan_date="2026-06-07")
        item_before = next(i for i in before["items"] if i["component_id"] == E2E_DISP_COMP)
        skip_ingredient(E2E_DISP_RECIPE_1, "e2e-disp-ing-1", "2026-06-07")
        after = build_stock_forecast(plan_date="2026-06-07")
        item_after = next(i for i in after["items"] if i["component_id"] == E2E_DISP_COMP)
        self.assertLess(item_after["planTodayKgPerDay"], item_before["planTodayKgPerDay"])


if __name__ == "__main__":
    unittest.main()