/*
 * Copyright (C) 2026 Fluxer Contributors
 *
 * This file is part of Fluxer.
 *
 * Fluxer is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Fluxer is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with Fluxer. If not, see <https://www.gnu.org/licenses/>.
 */

import {createTestAccount} from '@fluxer/api/src/auth/tests/AuthTestUtils';
import {type ApiTestHarness, createApiTestHarness} from '@fluxer/api/src/test/ApiTestHarness';
import {HTTP_STATUS} from '@fluxer/api/src/test/TestConstants';
import {createBuilder} from '@fluxer/api/src/test/TestRequestBuilder';
import {
	assertRelationshipId,
	assertRelationshipType,
	blockUser,
	listRelationships,
	removeRelationship,
	sendFriendRequest,
} from '@fluxer/api/src/user/tests/RelationshipTestUtils';
import {RelationshipTypes} from '@fluxer/constants/src/UserConstants';
import {beforeEach, describe, expect, test} from 'vitest';

describe('RelationshipBlockingBehaviors', () => {
	let harness: ApiTestHarness;

	beforeEach(async () => {
		harness = await createApiTestHarness();
	});

	describe('Friend Request Blocking', () => {
		test('friend request to blocker is generic blocked error', async () => {
			const alice = await createTestAccount(harness);
			const bob = await createTestAccount(harness);

			await blockUser(harness, bob.token, alice.userId);

			await createBuilder(harness, alice.token)
				.post(`/users/@me/relationships/${bob.userId}`)
				.expect(HTTP_STATUS.BAD_REQUEST, 'FRIEND_REQUEST_BLOCKED')
				.execute();
		});
	});

	describe('Notification Behavior', () => {
		test('blocking ignores incoming request without notifying sender', async () => {
			const alice = await createTestAccount(harness);
			const bob = await createTestAccount(harness);

			const {json: outgoing} = await sendFriendRequest(harness, alice.token, bob.userId);
			assertRelationshipId(outgoing, bob.userId);
			assertRelationshipType(outgoing, RelationshipTypes.OUTGOING_REQUEST);

			const {json: blocked} = await blockUser(harness, bob.token, alice.userId);
			assertRelationshipId(blocked, alice.userId);
			assertRelationshipType(blocked, RelationshipTypes.BLOCKED);

			const {json: aliceRels} = await listRelationships(harness, alice.token);
			expect(aliceRels).toHaveLength(1);
			expect(aliceRels[0]!.type).toBe(RelationshipTypes.OUTGOING_REQUEST);
			assertRelationshipId(aliceRels[0]!, bob.userId);
		});

		test('ignoring incoming request does not notify sender', async () => {
			const alice = await createTestAccount(harness);
			const bob = await createTestAccount(harness);

			const {json: outgoing} = await sendFriendRequest(harness, alice.token, bob.userId);
			assertRelationshipId(outgoing, bob.userId);
			assertRelationshipType(outgoing, RelationshipTypes.OUTGOING_REQUEST);

			await removeRelationship(harness, bob.token, alice.userId);

			const {json: aliceRels} = await listRelationships(harness, alice.token);
			expect(aliceRels).toHaveLength(1);
			expect(aliceRels[0]!.type).toBe(RelationshipTypes.OUTGOING_REQUEST);
			assertRelationshipId(aliceRels[0]!, bob.userId);
		});
	});

	describe('Outgoing Request Handling', () => {
		test('blocking with outgoing request withdraws the request and notifies target', async () => {
			const alice = await createTestAccount(harness);
			const bob = await createTestAccount(harness);

			const {json: outgoing} = await sendFriendRequest(harness, alice.token, bob.userId);
			assertRelationshipId(outgoing, bob.userId);
			assertRelationshipType(outgoing, RelationshipTypes.OUTGOING_REQUEST);

			const {json: blocked} = await blockUser(harness, alice.token, bob.userId);
			assertRelationshipId(blocked, bob.userId);
			assertRelationshipType(blocked, RelationshipTypes.BLOCKED);

			const {json: bobRels} = await listRelationships(harness, bob.token);
			expect(bobRels).toHaveLength(0);
		});
	});
});