"""Integration tests for API endpoints."""

import os
import pytest
from httpx import AsyncClient, ASGITransport
from memory_manager.api.app import app
from memory_manager.db.repository import MemoryRepository

TEST_DB_PATH = ".memory/test_codebase_memory.db"


@pytest.fixture(autouse=True)
async def clean_db():
    if os.path.exists(TEST_DB_PATH):
        os.remove(TEST_DB_PATH)
    yield
    if os.path.exists(TEST_DB_PATH):
        os.remove(TEST_DB_PATH)


@pytest.fixture
async def client():
    os.environ["MEMORY_DB_PATH"] = TEST_DB_PATH

    transport = ASGITransport(app=app)
    async with AsyncClient(transport=transport, base_url="http://test") as ac:
        yield ac


@pytest.mark.asyncio
async def test_health_endpoint(client):
    response = await client.get("/health")
    assert response.status_code == 200
    data = response.json()
    assert data["status"] == "ok"
    assert "version" in data


@pytest.mark.asyncio
async def test_create_memory_entry(client):
    entry_data = {
        "title": "Test Decision",
        "content": "We decided to use SQLite for the database.",
        "category": "decision",
        "tags": ["database", "sqlite"],
    }

    response = await client.post("/api/memory", json=entry_data)
    assert response.status_code == 201

    data = response.json()
    assert data["title"] == "Test Decision"
    assert data["category"] == "decision"
    assert "id" in data


@pytest.mark.asyncio
async def test_list_memory_entries(client):
    entry_data = {
        "title": "Test Feature",
        "content": "Implementing new feature",
        "category": "feature",
        "tags": [],
    }
    await client.post("/api/memory", json=entry_data)

    response = await client.get("/api/memory")
    assert response.status_code == 200

    data = response.json()
    assert isinstance(data, list)
    assert len(data) >= 1


@pytest.mark.asyncio
async def test_get_memory_entry(client):
    entry_data = {
        "title": "Test Get",
        "content": "Testing get endpoint",
        "category": "note",
        "tags": ["test"],
    }
    create_response = await client.post("/api/memory", json=entry_data)
    entry_id = create_response.json()["id"]

    response = await client.get(f"/api/memory/{entry_id}")
    assert response.status_code == 200

    data = response.json()
    assert data["title"] == "Test Get"


@pytest.mark.asyncio
async def test_get_memory_entry_not_found(client):
    response = await client.get("/api/memory/99999")
    assert response.status_code == 404


@pytest.mark.asyncio
async def test_update_memory_entry(client):
    entry_data = {
        "title": "Original Title",
        "content": "Original content",
        "category": "note",
        "tags": [],
    }
    create_response = await client.post("/api/memory", json=entry_data)
    entry_id = create_response.json()["id"]

    update_data = {"title": "Updated Title"}
    response = await client.put(f"/api/memory/{entry_id}", json=update_data)
    assert response.status_code == 200

    data = response.json()
    assert data["title"] == "Updated Title"


@pytest.mark.asyncio
async def test_delete_memory_entry(client):
    entry_data = {
        "title": "To Delete",
        "content": "Will be deleted",
        "category": "note",
        "tags": [],
    }
    create_response = await client.post("/api/memory", json=entry_data)
    entry_id = create_response.json()["id"]

    response = await client.delete(f"/api/memory/{entry_id}")
    assert response.status_code == 204

    get_response = await client.get(f"/api/memory/{entry_id}")
    assert get_response.status_code == 404


@pytest.mark.asyncio
async def test_create_commit(client):
    entry_data = {
        "title": "Before Commit",
        "content": "Testing commit",
        "category": "decision",
        "tags": [],
    }
    await client.post("/api/memory", json=entry_data)

    commit_data = {"message": "Initial commit with first entry"}
    response = await client.post("/api/memory/commit", json=commit_data)
    assert response.status_code == 201

    data = response.json()
    assert data["message"] == "Initial commit with first entry"
    assert "hash" in data
    assert len(data["snapshot"]) >= 1


@pytest.mark.asyncio
async def test_get_log(client):
    entry_data = {
        "title": "Log Test",
        "content": "Testing log",
        "category": "feature",
        "tags": [],
    }
    await client.post("/api/memory", json=entry_data)

    commit_data = {"message": "Test commit"}
    await client.post("/api/memory/commit", json=commit_data)

    response = await client.get("/api/memory/log")
    assert response.status_code == 200

    data = response.json()
    assert isinstance(data, list)
    assert len(data) >= 1


@pytest.mark.asyncio
async def test_diff_commits(client):
    entry1 = {
        "title": "Entry 1",
        "content": "First entry",
        "category": "decision",
        "tags": [],
    }
    await client.post("/api/memory", json=entry1)
    commit1_response = await client.post("/api/memory/commit", json={"message": "Commit 1"})
    hash1 = commit1_response.json()["hash"]

    entry2 = {
        "title": "Entry 2",
        "content": "Second entry",
        "category": "feature",
        "tags": [],
    }
    await client.post("/api/memory", json=entry2)
    commit2_response = await client.post("/api/memory/commit", json={"message": "Commit 2"})
    hash2 = commit2_response.json()["hash"]

    response = await client.get(f"/api/memory/diff/{hash1}/{hash2}")
    assert response.status_code == 200

    data = response.json()
    assert "added" in data
    assert "removed" in data
    assert "modified" in data


@pytest.mark.asyncio
async def test_stats_endpoint(client):
    entry_data = {
        "title": "Stats Test",
        "content": "Testing stats",
        "category": "architecture",
        "tags": ["test"],
    }
    await client.post("/api/memory", json=entry_data)

    response = await client.get("/api/memory/stats")
    assert response.status_code == 200

    data = response.json()
    assert "total_entries" in data
    assert "entries_by_category" in data
    assert "total_commits" in data