import unittest
from fastapi.testclient import TestClient

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


class TestShoppingUnrequestIngredientV2(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 user and create two households
        r = self.client.post(
            "/api/v1/auth/register",
            json={"email": "unreq@test.com", "password": "pw", "displayName": "UnReq"},
        )
        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"]

        # Resolve household ids
        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])

        # Seed one ingredient in both households
        await self.conn.execute(
            "INSERT INTO Ingredient (name, line, unit, quantity, recipe_id, meal_id, household_id) VALUES ('Milk', '1L milk', 'L', 1, NULL, NULL, ?)",
            (self.h1_id,),
        )
        async with self.conn.execute("SELECT last_insert_rowid()") as c:
            row = await c.fetchone()
            assert row is not None
            self.milk_h1_id = int(row[0])
        await self.conn.execute(
            "INSERT INTO Ingredient (name, line, unit, quantity, recipe_id, meal_id, household_id) VALUES ('Milk', '1L milk', 'L', 1, NULL, NULL, ?)",
            (self.h2_id,),
        )
        async with self.conn.execute("SELECT last_insert_rowid()") as c:
            row = await c.fetchone()
            assert row is not None
            self.milk_h2_id = int(row[0])
        await self.conn.commit()

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

    def test_unrequest_ingredient_idempotent_and_scoped(self):
        # Request ingredient in H1
        r = self.client.post(
            f"/api/v1/households/{self.h1}/shopping/current/ingredients",
            headers=self.headers,
            json={"ingredientId": self.milk_h1_id},
        )
        assert r.status_code == 200, r.text

        # Ensure it shows up in H1 current
        cur = self.client.get(
            f"/api/v1/households/{self.h1}/shopping/current", headers=self.headers
        ).json()
        assert any(i.get("ingredientId") == self.milk_h1_id for i in cur["outstandingItems"])

        # Delete it via new endpoint
        d = self.client.request(
            "DELETE",
            f"/api/v1/households/{self.h1}/shopping/current/ingredients",
            headers=self.headers,
            json={"ingredientId": self.milk_h1_id},
        )
        assert d.status_code == 200, d.text
        assert d.json()["ok"] is True

        # It disappears from H1 current
        cur = self.client.get(
            f"/api/v1/households/{self.h1}/shopping/current", headers=self.headers
        ).json()
        assert not any(i.get("ingredientId") == self.milk_h1_id for i in cur["outstandingItems"])

        # Idempotent: delete again
        d2 = self.client.request(
            "DELETE",
            f"/api/v1/households/{self.h1}/shopping/current/ingredients",
            headers=self.headers,
            json={"ingredientId": self.milk_h1_id},
        )
        assert d2.status_code == 200, d2.text
        assert d2.json()["ok"] is True

        # Ensure H2 unaffected
        cur2 = self.client.get(
            f"/api/v1/households/{self.h2}/shopping/current", headers=self.headers
        ).json()
        # No request in H2, so still absent
        assert not any(i.get("ingredientId") == self.milk_h2_id for i in cur2["outstandingItems"])