"""Integration tests for Login Flow v2 (ADR-022).

Tests the complete Login Flow v2 provisioning and verifies all MCP tools
work through the stored app password. This validates the end-to-end flow:

  OAuth token (MCP session) → Login Flow v2 (browser) → App password → Nextcloud API

Test categories:
1. Auth tools: provision, check status, scope management
2. Notes: CRUD operations
3. Calendar: events and todos
4. Contacts: address book and contact operations
5. Files (WebDAV): directory listing, file operations
6. Deck: board management
7. Cookbook: recipe operations
8. Tables: table operations
"""

import json
import logging
import uuid

import pytest
from mcp import ClientSession

logger = logging.getLogger(__name__)
pytestmark = [pytest.mark.login_flow, pytest.mark.integration]


# ---------------------------------------------------------------------------
# Auth tools
# ---------------------------------------------------------------------------


class TestLoginFlowAuthTools:
    """Test Login Flow v2 auth tools."""

    async def test_check_status_provisioned(
        self, nc_mcp_login_flow_client: ClientSession
    ):
        """After fixture setup, status should be 'provisioned'."""
        result = await nc_mcp_login_flow_client.call_tool("nc_auth_check_status", {})
        data = json.loads(result.content[0].text)
        assert data["status"] == "provisioned"
        assert data["username"] is not None
        assert data["scopes"] is not None
        logger.info(f"Provisioned as: {data['username']}, scopes: {data['scopes']}")

    async def test_provision_access_already_provisioned(
        self, nc_mcp_login_flow_client: ClientSession
    ):
        """Calling provision when already provisioned returns 'already_provisioned'."""
        result = await nc_mcp_login_flow_client.call_tool(
            "nc_auth_provision_access", {}
        )
        data = json.loads(result.content[0].text)
        assert data["status"] == "already_provisioned"
        assert "already provisioned" in data["message"].lower()

    async def test_list_tools_includes_auth_tools(
        self, nc_mcp_login_flow_client: ClientSession
    ):
        """Login Flow server should expose auth tools."""
        tools = await nc_mcp_login_flow_client.list_tools()
        tool_names = [t.name for t in tools.tools]
        assert "nc_auth_provision_access" in tool_names
        assert "nc_auth_check_status" in tool_names
        assert "nc_auth_update_scopes" in tool_names


# ---------------------------------------------------------------------------
# Notes
# ---------------------------------------------------------------------------


class TestLoginFlowNotes:
    """Test Notes CRUD via Login Flow v2 app password."""

    async def test_notes_crud(self, nc_mcp_login_flow_client: ClientSession):
        """Full Notes CRUD: create → read → update → search → delete."""
        suffix = uuid.uuid4().hex[:8]
        title = f"LoginFlow Test {suffix}"
        content = f"Content for {suffix}"
        category = "LoginFlowTest"

        # Create
        create_result = await nc_mcp_login_flow_client.call_tool(
            "nc_notes_create_note",
            {"title": title, "content": content, "category": category},
        )
        assert create_result.isError is False, (
            f"Create failed: {create_result.content[0].text}"
        )
        note = json.loads(create_result.content[0].text)
        note_id = note["id"]
        etag = note["etag"]
        logger.info(f"Created note {note_id}")

        try:
            # Read
            read_result = await nc_mcp_login_flow_client.call_tool(
                "nc_notes_get_note", {"note_id": note_id}
            )
            assert read_result.isError is False
            read_data = json.loads(read_result.content[0].text)
            assert read_data["title"] == title
            assert read_data["content"] == content

            # Update (title, content, category are all required params)
            updated_content = f"Updated content for {suffix}"
            update_result = await nc_mcp_login_flow_client.call_tool(
                "nc_notes_update_note",
                {
                    "note_id": note_id,
                    "title": title,
                    "content": updated_content,
                    "category": category,
                    "etag": etag,
                },
            )
            assert update_result.isError is False, (
                f"Update failed: {update_result.content[0].text}"
            )
            updated = json.loads(update_result.content[0].text)
            # UpdateNoteResponse returns id, title, category, etag (no content)
            assert updated["title"] == title
            assert "etag" in updated

            # Append
            append_result = await nc_mcp_login_flow_client.call_tool(
                "nc_notes_append_content",
                {"note_id": note_id, "content": "\n\nAppended text"},
            )
            assert append_result.isError is False

            # Search
            search_result = await nc_mcp_login_flow_client.call_tool(
                "nc_notes_search_notes", {"query": suffix}
            )
            assert search_result.isError is False
            search_data = json.loads(search_result.content[0].text)
            assert search_data["total_found"] >= 1

        finally:
            # Delete
            await nc_mcp_login_flow_client.call_tool(
                "nc_notes_delete_note", {"note_id": note_id}
            )
            logger.info(f"Deleted note {note_id}")


# ---------------------------------------------------------------------------
# Calendar Events
# ---------------------------------------------------------------------------


class TestLoginFlowCalendarEvents:
    """Test Calendar event operations via Login Flow v2."""

    async def test_calendar_events_workflow(
        self, nc_mcp_login_flow_client: ClientSession
    ):
        """List calendars → create event → get event → delete event."""
        # List calendars
        cal_result = await nc_mcp_login_flow_client.call_tool(
            "nc_calendar_list_calendars", {}
        )
        assert cal_result.isError is False
        cal_data = json.loads(cal_result.content[0].text)
        calendars = cal_data.get("calendars", [])
        assert len(calendars) > 0
        calendar_name = calendars[0].get("name", "personal")
        logger.info(f"Using calendar: {calendar_name}")

        suffix = uuid.uuid4().hex[:8]
        event_title = f"LoginFlow Event {suffix}"

        # Create event (uses start_datetime/end_datetime)
        create_result = await nc_mcp_login_flow_client.call_tool(
            "nc_calendar_create_event",
            {
                "calendar_name": calendar_name,
                "title": event_title,
                "start_datetime": "2026-03-01T10:00:00",
                "end_datetime": "2026-03-01T11:00:00",
                "description": f"Test event for login flow {suffix}",
            },
        )
        assert create_result.isError is False, (
            f"Create event failed: {create_result.content[0].text}"
        )
        event_data = json.loads(create_result.content[0].text)
        event_uid = event_data.get("uid") or event_data.get("event_uid")
        logger.info(f"Created event: {event_uid}")

        try:
            # Get event
            get_result = await nc_mcp_login_flow_client.call_tool(
                "nc_calendar_get_event",
                {"calendar_name": calendar_name, "event_uid": event_uid},
            )
            assert get_result.isError is False

        finally:
            # Delete event
            await nc_mcp_login_flow_client.call_tool(
                "nc_calendar_delete_event",
                {"calendar_name": calendar_name, "event_uid": event_uid},
            )
            logger.info(f"Deleted event {event_uid}")


# ---------------------------------------------------------------------------
# Calendar Todos
# ---------------------------------------------------------------------------


class TestLoginFlowCalendarTodos:
    """Test Calendar todo (VTODO) operations via Login Flow v2."""

    async def test_todo_workflow(self, nc_mcp_login_flow_client: ClientSession):
        """Create todo → list todos → update todo → delete todo."""
        cal_result = await nc_mcp_login_flow_client.call_tool(
            "nc_calendar_list_calendars", {}
        )
        cal_data = json.loads(cal_result.content[0].text)
        calendars = cal_data.get("calendars", [])
        calendar_name = calendars[0].get("name", "personal")

        suffix = uuid.uuid4().hex[:8]
        todo_title = f"LoginFlow Todo {suffix}"

        # Create todo (uses 'summary', not 'title')
        create_result = await nc_mcp_login_flow_client.call_tool(
            "nc_calendar_create_todo",
            {
                "calendar_name": calendar_name,
                "summary": todo_title,
                "description": f"Test todo {suffix}",
            },
        )
        if create_result.isError:
            error_text = create_result.content[0].text
            if "AuthorizationError" in error_text:
                pytest.skip(
                    f"Calendar '{calendar_name}' does not support VTODO: {error_text}"
                )
            raise AssertionError(f"Create todo failed: {error_text}")
        todo_data = json.loads(create_result.content[0].text)
        todo_uid = todo_data.get("uid") or todo_data.get("todo_uid")
        logger.info(f"Created todo: {todo_uid}")

        try:
            # List todos
            list_result = await nc_mcp_login_flow_client.call_tool(
                "nc_calendar_list_todos",
                {"calendar_name": calendar_name},
            )
            assert list_result.isError is False

            # Update todo
            update_result = await nc_mcp_login_flow_client.call_tool(
                "nc_calendar_update_todo",
                {
                    "calendar_name": calendar_name,
                    "todo_uid": todo_uid,
                    "percent_complete": 50,
                },
            )
            assert update_result.isError is False

        finally:
            await nc_mcp_login_flow_client.call_tool(
                "nc_calendar_delete_todo",
                {"calendar_name": calendar_name, "todo_uid": todo_uid},
            )
            logger.info(f"Deleted todo {todo_uid}")


# ---------------------------------------------------------------------------
# Contacts
# ---------------------------------------------------------------------------


class TestLoginFlowContacts:
    """Test Contacts (CardDAV) operations via Login Flow v2."""

    async def test_contacts_workflow(self, nc_mcp_login_flow_client: ClientSession):
        """Create addressbook → create contact → list contacts → cleanup."""
        suffix = uuid.uuid4().hex[:8]
        ab_name = f"lf-test-{suffix}"
        contact_uid = f"login-flow-test-{suffix}"
        contact_fn = f"LoginFlow Contact {suffix}"

        # List address books (basic smoke test)
        ab_result = await nc_mcp_login_flow_client.call_tool(
            "nc_contacts_list_addressbooks", {}
        )
        assert ab_result.isError is False

        # Create a temporary address book for isolation
        create_ab_result = await nc_mcp_login_flow_client.call_tool(
            "nc_contacts_create_addressbook",
            {"name": ab_name, "display_name": f"Login Flow Test {suffix}"},
        )
        assert create_ab_result.isError is False, (
            f"Create addressbook failed: {create_ab_result.content[0].text}"
        )
        logger.info(f"Created address book: {ab_name}")

        try:
            # Create contact (requires addressbook, uid, contact_data dict)
            create_result = await nc_mcp_login_flow_client.call_tool(
                "nc_contacts_create_contact",
                {
                    "addressbook": ab_name,
                    "uid": contact_uid,
                    "contact_data": {
                        "fn": contact_fn,
                        "email": f"test-{suffix}@example.com",
                    },
                },
            )
            assert create_result.isError is False, (
                f"Create contact failed: {create_result.content[0].text}"
            )
            logger.info(f"Created contact: {contact_uid}")

            # List contacts in our clean addressbook
            # Note: may fail due to server-side Pydantic bug where ContactField.value
            # is a dict (structured email) but model expects string
            list_result = await nc_mcp_login_flow_client.call_tool(
                "nc_contacts_list_contacts",
                {"addressbook": ab_name},
            )
            if list_result.isError:
                error_text = list_result.content[0].text
                if "ContactField" in error_text:
                    logger.warning(
                        f"Known server bug: ContactField validation: {error_text}"
                    )
                else:
                    raise AssertionError(f"List contacts failed: {error_text}")
            else:
                list_data = json.loads(list_result.content[0].text)
                contacts = list_data.get("contacts", [])
                contact_uids = [c.get("uid", "") for c in contacts]
                assert contact_uid in contact_uids, (
                    f"Created contact {contact_uid} not found in list"
                )

            # Delete contact
            await nc_mcp_login_flow_client.call_tool(
                "nc_contacts_delete_contact",
                {"addressbook": ab_name, "uid": contact_uid},
            )
            logger.info(f"Deleted contact {contact_uid}")

        finally:
            # Always clean up the temporary address book
            await nc_mcp_login_flow_client.call_tool(
                "nc_contacts_delete_addressbook",
                {"name": ab_name},
            )
            logger.info(f"Deleted address book {ab_name}")


# ---------------------------------------------------------------------------
# Files (WebDAV)
# ---------------------------------------------------------------------------


class TestLoginFlowFiles:
    """Test WebDAV file operations via Login Flow v2."""

    async def test_file_operations(self, nc_mcp_login_flow_client: ClientSession):
        """Create dir → write file → read file → list dir → delete."""
        suffix = uuid.uuid4().hex[:8]
        dir_path = f"/LoginFlowTest_{suffix}"
        file_path = f"{dir_path}/test_file.txt"
        file_content = f"Hello from Login Flow v2 test {suffix}"

        # Create directory
        mkdir_result = await nc_mcp_login_flow_client.call_tool(
            "nc_webdav_create_directory", {"path": dir_path}
        )
        assert mkdir_result.isError is False, (
            f"Create dir failed: {mkdir_result.content[0].text}"
        )
        logger.info(f"Created directory: {dir_path}")

        try:
            # Write file
            write_result = await nc_mcp_login_flow_client.call_tool(
                "nc_webdav_write_file",
                {"path": file_path, "content": file_content},
            )
            assert write_result.isError is False

            # Read file
            read_result = await nc_mcp_login_flow_client.call_tool(
                "nc_webdav_read_file", {"path": file_path}
            )
            assert read_result.isError is False
            read_data = json.loads(read_result.content[0].text)
            assert file_content in read_data.get("content", "")

            # List directory (response uses 'files' field, each with 'name')
            list_result = await nc_mcp_login_flow_client.call_tool(
                "nc_webdav_list_directory", {"path": dir_path}
            )
            assert list_result.isError is False
            list_data = json.loads(list_result.content[0].text)
            files = list_data.get("files", [])
            file_names = [f.get("name", "") for f in files]
            assert "test_file.txt" in file_names

            # Find files by name (uses 'pattern' and 'scope')
            search_result = await nc_mcp_login_flow_client.call_tool(
                "nc_webdav_find_by_name",
                {"pattern": "test_file.txt", "scope": dir_path},
            )
            assert search_result.isError is False

        finally:
            # Clean up: delete file then directory
            await nc_mcp_login_flow_client.call_tool(
                "nc_webdav_delete_resource", {"path": file_path}
            )
            await nc_mcp_login_flow_client.call_tool(
                "nc_webdav_delete_resource", {"path": dir_path}
            )
            logger.info(f"Cleaned up {dir_path}")


# ---------------------------------------------------------------------------
# Deck
# ---------------------------------------------------------------------------


class TestLoginFlowDeck:
    """Test Deck (Kanban) operations via Login Flow v2."""

    async def test_deck_board_workflow(self, nc_mcp_login_flow_client: ClientSession):
        """Create board → list boards → get board details."""
        import os

        import httpx

        suffix = uuid.uuid4().hex[:8]
        board_title = f"LoginFlow Board {suffix}"
        board_id = None

        try:
            # Create board (requires title and color)
            create_result = await nc_mcp_login_flow_client.call_tool(
                "deck_create_board", {"title": board_title, "color": "0076D1"}
            )
            assert create_result.isError is False, (
                f"Create board failed: {create_result.content[0].text}"
            )
            board_data = json.loads(create_result.content[0].text)
            board_id = board_data.get("id") or board_data.get("board_id")
            logger.info(f"Created board: {board_id}")

            # List boards (tool name is deck_get_boards)
            list_result = await nc_mcp_login_flow_client.call_tool(
                "deck_get_boards", {}
            )
            assert list_result.isError is False
            boards_data = json.loads(list_result.content[0].text)
            boards = boards_data.get("boards", [])
            board_ids = [b.get("id") for b in boards]
            assert board_id in board_ids

            # Get board details
            detail_result = await nc_mcp_login_flow_client.call_tool(
                "deck_get_board", {"board_id": board_id}
            )
            assert detail_result.isError is False
        finally:
            # Clean up board via Deck REST API (no MCP delete_board tool exists)
            if board_id is not None:
                nc_host = os.getenv("NEXTCLOUD_HOST", "http://localhost:8080")
                nc_user = os.getenv("NEXTCLOUD_USERNAME", "admin")
                nc_pass = os.getenv("NEXTCLOUD_PASSWORD", "admin")
                try:
                    async with httpx.AsyncClient(
                        base_url=nc_host,
                        auth=httpx.BasicAuth(nc_user, nc_pass),
                        headers={"OCS-APIREQUEST": "true"},
                    ) as client:
                        resp = await client.delete(
                            f"/apps/deck/api/v1.0/boards/{board_id}"
                        )
                        logger.info(f"Board cleanup: {board_id} → {resp.status_code}")
                except Exception as e:
                    logger.warning(f"Board cleanup failed: {e}")


# ---------------------------------------------------------------------------
# Tables
# ---------------------------------------------------------------------------


class TestLoginFlowTables:
    """Test Tables operations via Login Flow v2."""

    @pytest.mark.xfail(
        reason="Server-side Pydantic bug: Table.owner_display_name required but missing from API",
        strict=False,
    )
    async def test_tables_list(self, nc_mcp_login_flow_client: ClientSession):
        """List tables (may be empty but should not error)."""
        result = await nc_mcp_login_flow_client.call_tool("nc_tables_list_tables", {})
        assert result.isError is False, f"List tables failed: {result.content[0].text}"
        data = json.loads(result.content[0].text)
        logger.info(f"Tables: {data}")


# ---------------------------------------------------------------------------
# Cookbook
# ---------------------------------------------------------------------------


class TestLoginFlowCookbook:
    """Test Cookbook operations via Login Flow v2."""

    async def test_cookbook_list_and_categories(
        self, nc_mcp_login_flow_client: ClientSession
    ):
        """List recipes and categories (may be empty but should not error)."""
        # List recipes
        list_result = await nc_mcp_login_flow_client.call_tool(
            "nc_cookbook_list_recipes", {}
        )
        assert list_result.isError is False

        # List categories
        cat_result = await nc_mcp_login_flow_client.call_tool(
            "nc_cookbook_list_categories", {}
        )
        assert cat_result.isError is False

    async def test_cookbook_create_and_delete(
        self, nc_mcp_login_flow_client: ClientSession
    ):
        """Create recipe → get recipe → delete recipe."""
        suffix = uuid.uuid4().hex[:8]

        create_result = await nc_mcp_login_flow_client.call_tool(
            "nc_cookbook_create_recipe",
            {
                "name": f"LoginFlow Recipe {suffix}",
                "description": f"Test recipe {suffix}",
                "ingredients": ["flour", "sugar", "butter"],
                "instructions": ["Mix ingredients", "Bake at 350F"],
                "keywords": "test,login-flow",  # keywords is a string, not list
            },
        )
        assert create_result.isError is False, (
            f"Create recipe failed: {create_result.content[0].text}"
        )
        recipe_data = json.loads(create_result.content[0].text)
        recipe_id = recipe_data.get("id") or recipe_data.get("recipe_id")
        logger.info(f"Created recipe: {recipe_id}")

        try:
            # Get recipe (may fail due to server-side Pydantic bug with recipeYield=None)
            get_result = await nc_mcp_login_flow_client.call_tool(
                "nc_cookbook_get_recipe", {"recipe_id": recipe_id}
            )
            if get_result.isError:
                error_text = get_result.content[0].text
                if "recipeYield" in error_text:
                    logger.warning(
                        f"Known server bug: Recipe.recipeYield validation: {error_text}"
                    )
                else:
                    raise AssertionError(f"Get recipe failed: {error_text}")

        finally:
            if recipe_id:
                await nc_mcp_login_flow_client.call_tool(
                    "nc_cookbook_delete_recipe", {"recipe_id": recipe_id}
                )
                logger.info(f"Deleted recipe {recipe_id}")


# ---------------------------------------------------------------------------
# Connectivity & Tool Listing
# ---------------------------------------------------------------------------


class TestLoginFlowConnectivity:
    """Basic connectivity and tool listing tests."""

    async def test_list_tools(self, nc_mcp_login_flow_client: ClientSession):
        """Verify key tools are available."""
        tools = await nc_mcp_login_flow_client.list_tools()
        tool_names = [t.name for t in tools.tools]

        # Auth tools (Login Flow v2 specific)
        assert "nc_auth_provision_access" in tool_names
        assert "nc_auth_check_status" in tool_names
        assert "nc_auth_update_scopes" in tool_names

        # Standard Nextcloud tools (verified against server/test_mcp.py)
        expected = [
            "nc_notes_create_note",
            "nc_notes_search_notes",
            "nc_notes_get_note",
            "nc_notes_update_note",
            "nc_notes_delete_note",
            "nc_notes_append_content",
            "nc_calendar_list_calendars",
            "nc_calendar_create_event",
            "nc_calendar_list_events",
            "nc_calendar_get_event",
            "nc_calendar_delete_event",
            "nc_calendar_list_todos",
            "nc_calendar_create_todo",
            "nc_calendar_update_todo",
            "nc_calendar_delete_todo",
            "nc_contacts_list_addressbooks",
            "nc_contacts_create_contact",
            "nc_contacts_list_contacts",
            "nc_contacts_delete_contact",
            "nc_webdav_list_directory",
            "nc_webdav_read_file",
            "nc_webdav_write_file",
            "nc_webdav_create_directory",
            "nc_webdav_delete_resource",
            "nc_webdav_find_by_name",
            "deck_create_board",
            "deck_get_boards",
            "deck_get_board",
            "nc_tables_list_tables",
            "nc_cookbook_list_recipes",
            "nc_cookbook_create_recipe",
            "nc_cookbook_get_recipe",
            "nc_cookbook_delete_recipe",
            "nc_cookbook_list_categories",
        ]

        for tool in expected:
            assert tool in tool_names, f"Expected tool '{tool}' not found"

    async def test_list_resources(self, nc_mcp_login_flow_client: ClientSession):
        """Verify resource templates are available."""
        templates = await nc_mcp_login_flow_client.list_resource_templates()
        logger.info(f"Resource templates: {len(templates.resourceTemplates)}")