from datetime import datetime, timezone
from decimal import Decimal
from uuid import uuid4

import pytest

pytestmark = pytest.mark.requires_postgres


def _admin() -> dict:
    return {"Authorization": "Bearer test-admin-token"}


@pytest.fixture
def family_with_groceries(db_session):
    from app.models import FamilyProfile, GroceryItem, Ingredient

    family = FamilyProfile(
        id=uuid4(),
        name="API Smoke Family",
        household_size=4,
        adult_count=2,
        child_count=2,
        calorie_target=500,  # per-serving target; recipes are 360-640 range
    )
    db_session.add(family)
    db_session.commit()

    for ing in db_session.query(Ingredient).limit(20).all():
        db_session.add(
            GroceryItem(
                id=uuid4(),
                name=ing.name,
                source="lucky_california",
                external_id=f"ext-api-{ing.id}",
                current_price=Decimal("3.99"),
                regular_price=Decimal("4.99"),
                is_on_sale=True,
                scraped_at=datetime.now(timezone.utc),
            )
        )
    db_session.commit()

    from app.services.matcher import run_match_job

    run_match_job(db_session)
    return family


def test_generate_endpoint_returns_meal_plan(client, family_with_groceries):
    body = {
        "family_profile_id": str(family_with_groceries.id),
        "week_start_date": "2026-05-11",
    }
    r = client.post("/api/admin/meal-plans/generate", json=body, headers=_admin())
    assert r.status_code == 201, r.text
    data = r.json()
    assert "meal_plan_id" in data
    assert 1 <= len(data["items"]) <= 3
    assert "debug" in data
    assert data["debug"]["feasible_count"] >= 1


def test_generate_endpoint_requires_admin_token(client, family_with_groceries):
    body = {
        "family_profile_id": str(family_with_groceries.id),
        "week_start_date": "2026-05-18",
    }
    r = client.post("/api/admin/meal-plans/generate", json=body)
    assert r.status_code == 401


def test_generate_endpoint_returns_404_for_unknown_family(client):
    body = {
        "family_profile_id": str(uuid4()),
        "week_start_date": "2026-05-11",
    }
    r = client.post("/api/admin/meal-plans/generate", json=body, headers=_admin())
    assert r.status_code == 404