import datetime
import unittest
from fastapi.testclient import TestClient

import main
from db import connect, create
from scripts.migration_to_households import run_migration


class TestMealsHouseholdV2(unittest.IsolatedAsyncioTestCase):
    async def asyncSetUp(self):
        self.conn = await connect(":memory:")
        await create(self.conn)
        await run_migration(self.conn)

        async def override_get_db():
            try:
                yield self.conn
            finally:
                pass

        main.app.dependency_overrides[main.get_db] = override_get_db
        self.client = TestClient(main.app)

        # Register a user and create two households
        r = self.client.post(
            "/api/v1/auth/register",
            json={"email": "m@test.com", "password": "pw", "displayName": "M"},
        )
        assert r.status_code == 200, r.text
        token = r.json()["accessToken"]
        self.headers = {"Authorization": f"Bearer {token}"}

        r = self.client.post("/api/v1/households", headers=self.headers, json={"name": "H1"})
        assert r.status_code == 200, r.text
        self.h1 = r.json()["slug"]
        r = self.client.post("/api/v1/households", headers=self.headers, json={"name": "H2"})
        assert r.status_code == 200, r.text
        self.h2 = r.json()["slug"]

        # Insert meals directly with household_id to seed data
        now = datetime.datetime.utcnow()
        # Raw inserts
        async with self.conn.execute("SELECT id FROM Household WHERE slug = ?", (self.h1,)) as c:
            row = await c.fetchone()
            assert row is not None
            self.h1_id = int(row[0])
        async with self.conn.execute("SELECT id FROM Household WHERE slug = ?", (self.h2,)) as c:
            row = await c.fetchone()
            assert row is not None
            self.h2_id = int(row[0])

        await self.conn.execute(
            "INSERT INTO Meal (suggested_date, consumed_date, deleted_date, purchase_date, household_id) VALUES (?, NULL, NULL, NULL, ?)",
            (now + datetime.timedelta(days=1), self.h1_id),
        )
        await self.conn.execute(
            "INSERT INTO Meal (suggested_date, consumed_date, deleted_date, purchase_date, household_id) VALUES (?, NULL, NULL, NULL, ?)",
            (now + datetime.timedelta(days=2), self.h2_id),
        )
        await self.conn.commit()

    async def asyncTearDown(self):
        await self.conn.close()
        main.app.dependency_overrides.clear()

    def test_upcoming_meals_are_scoped(self):
        now = datetime.datetime.utcnow()
        params = {
            "from": (now - datetime.timedelta(days=1)).isoformat() + "Z",
            "to": (now + datetime.timedelta(days=7)).isoformat() + "Z",
        }
        r1 = self.client.get(
            f"/api/v1/households/{self.h1}/meals/upcoming", headers=self.headers, params=params
        )
        assert r1.status_code == 200, r1.text
        m1 = r1.json()
        assert isinstance(m1, list)
        assert len(m1) == 1

        r2 = self.client.get(
            f"/api/v1/households/{self.h2}/meals/upcoming", headers=self.headers, params=params
        )
        assert r2.status_code == 200, r2.text
        m2 = r2.json()
        assert isinstance(m2, list)
        assert len(m2) == 1
        # Ensure different meal ids per household
        assert m1[0]["id"] != m2[0]["id"]