"""Integration tests for Wiki API routes"""
import pytest

from app import db
from app.models import Epic, Wiki, wiki_entity_links


@pytest.mark.integration
class TestWikiRoutes:
    """Test Wiki API routes"""

    # ========== GET /boards/<board_id>/wikis ==========

    def test_get_board_wikis_success(
        self, client, db_session, regular_user, auth_headers, test_board
    ):
        """Test getting all wikis for a board"""
        # Create wikis for board
        wiki1 = Wiki(
            name="Getting Started",
            board_id=test_board.id,
            slug="getting-started",
            content=[
                {"type": "paragraph", "children": [{"text": "Getting started content"}]}
            ],
            created_by=regular_user.id,
        )
        wiki2 = Wiki(
            name="API Documentation",
            board_id=test_board.id,
            slug="api-documentation",
            content=[{"type": "paragraph", "children": [{"text": "API docs content"}]}],
            created_by=regular_user.id,
        )
        db_session.add(wiki1)
        db_session.add(wiki2)
        db_session.commit()

        response = client.get(
            f"/api/boards/{test_board.id}/wikis", headers=auth_headers
        )

        assert response.status_code == 200
        data = response.get_json()
        assert len(data) == 2
        assert data[0]["name"] == "Getting Started"
        assert data[1]["name"] == "API Documentation"

    def test_get_board_wikis_empty(self, client, db_session, auth_headers, test_board):
        """Test getting wikis when none exist for board"""
        response = client.get(
            f"/api/boards/{test_board.id}/wikis", headers=auth_headers
        )

        assert response.status_code == 200
        data = response.get_json()
        assert len(data) == 0

    def test_get_board_wikis_board_not_found(self, client, db_session, auth_headers):
        """Test getting wikis for non-existent board"""
        response = client.get("/api/boards/99999/wikis", headers=auth_headers)

        assert response.status_code == 404
        data = response.get_json()
        assert "not found" in data["error"].lower()

    def test_get_board_wikis_unauthorized(self, client, db_session, test_board):
        """Test getting wikis without authentication"""
        response = client.get(f"/api/boards/{test_board.id}/wikis")

        assert response.status_code == 401

    # ========== POST /boards/<board_id>/wikis ==========

    def test_create_wiki_success(
        self, client, db_session, regular_user, auth_headers, test_board
    ):
        """Test creating a new wiki successfully"""
        wiki_data = {
            "name": "User Guide",
            "slug": "user-guide",
            "content": [{"type": "paragraph", "children": [{"text": "Welcome..."}]}],
            "summary": "A comprehensive user guide",
            "category": "Documentation",
            "tags": ["getting-started", "tutorial"],
        }

        response = client.post(
            f"/api/boards/{test_board.id}/wikis",
            headers=auth_headers,
            json=wiki_data,
        )

        assert response.status_code == 201
        data = response.get_json()
        assert data["name"] == "User Guide"
        assert data["slug"] == "user-guide"
        assert data["summary"] == "A comprehensive user guide"
        assert data["category"] == "Documentation"
        assert data["tags"] == ["getting-started", "tutorial"]
        assert data["created_by"] == regular_user.id
        assert data["updated_by"] == regular_user.id
        assert "id" in data

    def test_create_wiki_minimal_data(
        self, client, db_session, auth_headers, test_board
    ):
        """Test creating wiki with only required fields"""
        wiki_data = {
            "name": "Simple Wiki",
            "content": [{"type": "paragraph", "children": [{"text": "Content"}]}],
        }

        response = client.post(
            f"/api/boards/{test_board.id}/wikis",
            headers=auth_headers,
            json=wiki_data,
        )

        assert response.status_code == 201
        data = response.get_json()
        assert data["name"] == "Simple Wiki"
        assert data["slug"] == "simple-wiki"  # Auto-generated
        assert data["summary"] is None
        assert data["category"] is None
        assert data["tags"] is None

    def test_create_wiki_auto_generate_slug(
        self, client, db_session, auth_headers, test_board
    ):
        """Test creating wiki with auto-generated slug"""
        wiki_data = {
            "name": "API Reference Guide",
            "content": [{"type": "paragraph", "children": [{"text": "Content"}]}],
        }

        response = client.post(
            f"/api/boards/{test_board.id}/wikis",
            headers=auth_headers,
            json=wiki_data,
        )

        assert response.status_code == 201
        data = response.get_json()
        assert data["slug"] == "api-reference-guide"

    def test_create_wiki_slug_collision(
        self, client, db_session, auth_headers, test_board, regular_user
    ):
        """Test creating wiki with colliding slug"""
        # Create first wiki
        wiki1 = Wiki(
            name="Test Wiki",
            board_id=test_board.id,
            slug="test-wiki",
            content=[{"type": "paragraph", "children": [{"text": "Content"}]}],
            created_by=regular_user.id,
        )
        db_session.add(wiki1)
        db_session.commit()

        # Create second wiki with same name (should auto-increment slug)
        wiki_data = {
            "name": "Test Wiki",
            "content": [{"type": "paragraph", "children": [{"text": "Content"}]}],
        }

        response = client.post(
            f"/api/boards/{test_board.id}/wikis",
            headers=auth_headers,
            json=wiki_data,
        )

        assert response.status_code == 201
        data = response.get_json()
        assert data["slug"] == "test-wiki-1"

    def test_create_wiki_board_not_found(self, client, db_session, auth_headers):
        """Test creating wiki for non-existent board"""
        wiki_data = {
            "name": "Test Wiki",
            "content": [{"type": "paragraph", "children": [{"text": "Content"}]}],
        }

        response = client.post(
            "/api/boards/99999/wikis",
            headers=auth_headers,
            json=wiki_data,
        )

        assert response.status_code == 404
        data = response.get_json()
        assert "not found" in data["error"].lower()

    def test_create_wiki_unauthorized(self, client, db_session, test_board):
        """Test creating wiki without authentication"""
        wiki_data = {
            "name": "Test Wiki",
            "content": [{"type": "paragraph", "children": [{"text": "Content"}]}],
        }

        response = client.post(
            f"/api/boards/{test_board.id}/wikis",
            json=wiki_data,
        )

        assert response.status_code == 401

    def test_create_wiki_missing_name(
        self, client, db_session, auth_headers, test_board
    ):
        """Test creating wiki without name"""
        wiki_data = {"summary": "No name provided"}

        response = client.post(
            f"/api/boards/{test_board.id}/wikis",
            headers=auth_headers,
            json=wiki_data,
        )

        assert response.status_code == 400

    def test_create_wiki_name_too_long(
        self, client, db_session, auth_headers, test_board
    ):
        """Test creating wiki with name exceeding max length"""
        wiki_data = {
            "name": "A" * 201,
            "content": [{"type": "paragraph", "children": [{"text": "Content"}]}],
        }

        response = client.post(
            f"/api/boards/{test_board.id}/wikis",
            headers=auth_headers,
            json=wiki_data,
        )

        assert response.status_code == 400

    def test_create_wiki_invalid_slug(
        self, client, db_session, auth_headers, test_board
    ):
        """Test creating wiki with invalid slug format"""
        wiki_data = {
            "name": "Test Wiki",
            "slug": "invalid slug!",
            "content": [{"type": "paragraph", "children": [{"text": "Content"}]}],
        }

        response = client.post(
            f"/api/boards/{test_board.id}/wikis",
            headers=auth_headers,
            json=wiki_data,
        )

        assert response.status_code == 400

    # ========== GET /wikis/<wiki_id> ==========

    def test_get_wiki_success(
        self, client, db_session, auth_headers, test_board, regular_user
    ):
        """Test getting a specific wiki with details"""
        wiki = Wiki(
            name="Test Wiki",
            board_id=test_board.id,
            slug="test-wiki",
            content=[{"type": "paragraph", "children": [{"text": "Test content"}]}],
            created_by=regular_user.id,
        )
        db_session.add(wiki)
        db_session.commit()

        response = client.get(f"/api/wikis/{wiki.id}", headers=auth_headers)

        assert response.status_code == 200
        data = response.get_json()
        assert data["id"] == wiki.id
        assert data["name"] == "Test Wiki"
        assert data["slug"] == "test-wiki"
        assert "linked_cards" in data
        assert "linked_epics" in data

    def test_get_wiki_with_linked_entities(
        self, client, db_session, auth_headers, test_board, regular_user, test_card
    ):
        """Test getting wiki with linked cards and epics"""
        wiki = Wiki(
            name="Test Wiki",
            board_id=test_board.id,
            slug="test-wiki",
            content=[{"type": "paragraph", "children": [{"text": "Test content"}]}],
            created_by=regular_user.id,
        )
        db_session.add(wiki)
        db_session.commit()

        # Link card to wiki
        db.session.execute(
            wiki_entity_links.insert().values(
                wiki_id=wiki.id, entity_type="card", entity_id=test_card.id
            )
        )
        db_session.commit()

        response = client.get(f"/api/wikis/{wiki.id}", headers=auth_headers)

        assert response.status_code == 200
        data = response.get_json()
        assert "linked_cards" in data
        assert "linked_epics" in data
        assert len(data["linked_cards"]) == 1
        assert data["linked_cards"][0]["id"] == test_card.id

    def test_get_wiki_not_found(self, client, db_session, auth_headers):
        """Test getting non-existent wiki"""
        response = client.get("/api/wikis/99999", headers=auth_headers)

        assert response.status_code == 404
        data = response.get_json()
        assert "not found" in data["error"].lower()

    def test_get_wiki_unauthorized(self, client, db_session, test_board, regular_user):
        """Test getting wiki without authentication"""
        wiki = Wiki(
            name="Test Wiki",
            board_id=test_board.id,
            slug="test-wiki",
            content=[{"type": "paragraph", "children": [{"text": "Test content"}]}],
            created_by=regular_user.id,
        )
        db_session.add(wiki)
        db_session.commit()

        response = client.get(f"/api/wikis/{wiki.id}")

        assert response.status_code == 401

    # ========== PUT /wikis/<wiki_id> ==========

    def test_update_wiki_success(
        self, client, db_session, auth_headers, test_board, regular_user
    ):
        """Test updating a wiki successfully"""
        wiki = Wiki(
            name="Original Name",
            board_id=test_board.id,
            slug="original-slug",
            content=[{"type": "paragraph", "children": [{"text": "Original content"}]}],
            created_by=regular_user.id,
        )
        db_session.add(wiki)
        db_session.commit()

        update_data = {
            "name": "Updated Name",
            "slug": "updated-slug",
            "summary": "Updated summary",
            "category": "Documentation",
            "tags": ["updated", "tag"],
        }

        response = client.put(
            f"/api/wikis/{wiki.id}",
            headers=auth_headers,
            json=update_data,
        )

        assert response.status_code == 200
        data = response.get_json()
        assert data["name"] == "Updated Name"
        assert data["slug"] == "updated-slug"
        assert data["summary"] == "Updated summary"
        assert data["category"] == "Documentation"
        assert data["tags"] == ["updated", "tag"]

    def test_update_wiki_partial(
        self, client, db_session, auth_headers, test_board, regular_user
    ):
        """Test updating wiki with partial data"""
        wiki = Wiki(
            name="Original Name",
            board_id=test_board.id,
            content=[{"type": "paragraph", "children": [{"text": "Original content"}]}],
            created_by=regular_user.id,
        )
        db_session.add(wiki)
        db_session.commit()

        update_data = {"name": "Updated Name"}

        response = client.put(
            f"/api/wikis/{wiki.id}",
            headers=auth_headers,
            json=update_data,
        )

        assert response.status_code == 200
        data = response.get_json()
        assert data["name"] == "Updated Name"
        # Other fields should remain unchanged

    def test_update_wiki_content(
        self, client, db_session, auth_headers, test_board, regular_user
    ):
        """Test updating wiki content"""
        wiki = Wiki(
            name="Test Wiki",
            board_id=test_board.id,
            content=[{"type": "paragraph", "children": [{"text": "Original content"}]}],
            created_by=regular_user.id,
        )
        db_session.add(wiki)
        db_session.commit()

        new_content = [{"type": "heading", "children": [{"text": "Updated Content"}]}]

        response = client.put(
            f"/api/wikis/{wiki.id}",
            headers=auth_headers,
            json={"content": new_content},
        )

        assert response.status_code == 200
        data = response.get_json()
        assert data["content"] == new_content

    def test_update_wiki_not_found(self, client, db_session, auth_headers):
        """Test updating non-existent wiki"""
        response = client.put(
            "/api/wikis/99999",
            headers=auth_headers,
            json={"name": "Updated"},
        )

        assert response.status_code == 404

    def test_update_wiki_unauthorized(
        self, client, db_session, test_board, regular_user
    ):
        """Test updating wiki without authentication"""
        wiki = Wiki(
            name="Test Wiki",
            board_id=test_board.id,
            content=[{"type": "paragraph", "children": [{"text": "Test content"}]}],
            created_by=regular_user.id,
        )
        db_session.add(wiki)
        db_session.commit()

        response = client.put(f"/api/wikis/{wiki.id}", json={"name": "Updated"})

        assert response.status_code == 401

    def test_update_wiki_invalid_name(
        self, client, db_session, auth_headers, test_board, regular_user
    ):
        """Test updating wiki with invalid name"""
        wiki = Wiki(
            name="Test Wiki",
            board_id=test_board.id,
            content=[{"type": "paragraph", "children": [{"text": "Test content"}]}],
            created_by=regular_user.id,
        )
        db_session.add(wiki)
        db_session.commit()

        response = client.put(
            f"/api/wikis/{wiki.id}",
            headers=auth_headers,
            json={"name": ""},
        )

        assert response.status_code == 400

    def test_update_wiki_invalid_slug(
        self, client, db_session, auth_headers, test_board, regular_user
    ):
        """Test updating wiki with invalid slug"""
        wiki = Wiki(
            name="Test Wiki",
            board_id=test_board.id,
            content=[{"type": "paragraph", "children": [{"text": "Test content"}]}],
            created_by=regular_user.id,
        )
        db_session.add(wiki)
        db_session.commit()

        response = client.put(
            f"/api/wikis/{wiki.id}",
            headers=auth_headers,
            json={"slug": "invalid slug!"},
        )

        assert response.status_code == 400

    # ========== DELETE /wikis/<wiki_id> ==========

    def test_delete_wiki_success(
        self, client, db_session, auth_headers, test_board, regular_user
    ):
        """Test deleting a wiki successfully"""
        wiki = Wiki(
            name="To Delete",
            board_id=test_board.id,
            content=[{"type": "paragraph", "children": [{"text": "Test content"}]}],
            created_by=regular_user.id,
        )
        db_session.add(wiki)
        db_session.commit()
        wiki_id = wiki.id

        response = client.delete(f"/api/wikis/{wiki.id}", headers=auth_headers)

        assert response.status_code == 200
        data = response.get_json()
        assert "message" in data

        # Verify wiki is deleted
        deleted_wiki = db.session.get(Wiki, wiki_id)
        assert deleted_wiki is None

    def test_delete_wiki_with_links(
        self, client, db_session, auth_headers, test_board, regular_user, test_card
    ):
        """Test deleting wiki removes entity links"""
        wiki = Wiki(
            name="Wiki with Links",
            board_id=test_board.id,
            content=[{"type": "paragraph", "children": [{"text": "Test content"}]}],
            created_by=regular_user.id,
        )
        db_session.add(wiki)
        db_session.commit()

        # Link card to wiki
        db.session.execute(
            wiki_entity_links.insert().values(
                wiki_id=wiki.id, entity_type="card", entity_id=test_card.id
            )
        )
        db_session.commit()

        response = client.delete(f"/api/wikis/{wiki.id}", headers=auth_headers)

        assert response.status_code == 200

        # Verify links are deleted (cascade)
        from sqlalchemy import select

        links = db.session.scalars(
            select(wiki_entity_links).where(wiki_entity_links.c.wiki_id == wiki.id)
        ).all()
        assert len(links) == 0

    def test_delete_wiki_not_found(self, client, db_session, auth_headers):
        """Test deleting non-existent wiki"""
        response = client.delete("/api/wikis/99999", headers=auth_headers)

        assert response.status_code == 404

    def test_delete_wiki_unauthorized(
        self, client, db_session, test_board, regular_user
    ):
        """Test deleting wiki without authentication"""
        wiki = Wiki(
            name="Test Wiki",
            board_id=test_board.id,
            content=[{"type": "paragraph", "children": [{"text": "Test content"}]}],
            created_by=regular_user.id,
        )
        db_session.add(wiki)
        db_session.commit()

        response = client.delete(f"/api/wikis/{wiki.id}")

        assert response.status_code == 401

    # ========== POST /wikis/<wiki_id>/links ==========

    def test_create_wiki_link_card(
        self, client, db_session, auth_headers, test_board, regular_user, test_card
    ):
        """Test linking wiki to card successfully"""
        wiki = Wiki(
            name="Test Wiki",
            board_id=test_board.id,
            content=[{"type": "paragraph", "children": [{"text": "Test content"}]}],
            created_by=regular_user.id,
        )
        db_session.add(wiki)
        db_session.commit()

        response = client.post(
            f"/api/wikis/{wiki.id}/links",
            headers=auth_headers,
            json={"entity_type": "card", "entity_id": test_card.id},
        )

        assert response.status_code == 201
        data = response.get_json()
        assert "message" in data

        # Verify link is created
        from sqlalchemy import select

        link = db.session.scalars(
            select(wiki_entity_links).where(
                wiki_entity_links.c.wiki_id == wiki.id,
                wiki_entity_links.c.entity_type == "card",
                wiki_entity_links.c.entity_id == test_card.id,
            )
        ).first()
        assert link is not None

    def test_create_wiki_link_epic(
        self,
        client,
        db_session,
        auth_headers,
        test_board,
        regular_user,
        test_list,
    ):
        """Test linking wiki to epic successfully"""
        wiki = Wiki(
            name="Test Wiki",
            board_id=test_board.id,
            content=[{"type": "paragraph", "children": [{"text": "Test content"}]}],
            created_by=regular_user.id,
        )
        epic = Epic(name="Test Epic", board_id=test_board.id)
        db_session.add(wiki)
        db_session.add(epic)
        db_session.commit()

        response = client.post(
            f"/api/wikis/{wiki.id}/links",
            headers=auth_headers,
            json={"entity_type": "epic", "entity_id": epic.id},
        )

        assert response.status_code == 201

        # Verify link is created
        from sqlalchemy import select

        link = db.session.scalars(
            select(wiki_entity_links).where(
                wiki_entity_links.c.wiki_id == wiki.id,
                wiki_entity_links.c.entity_type == "epic",
                wiki_entity_links.c.entity_id == epic.id,
            )
        ).first()
        assert link is not None

    def test_create_wiki_link_list(
        self,
        client,
        db_session,
        auth_headers,
        test_board,
        regular_user,
        test_list,
    ):
        """Test linking wiki to list successfully"""
        wiki = Wiki(
            name="Test Wiki",
            board_id=test_board.id,
            content=[{"type": "paragraph", "children": [{"text": "Test content"}]}],
            created_by=regular_user.id,
        )
        db_session.add(wiki)
        db_session.commit()

        response = client.post(
            f"/api/wikis/{wiki.id}/links",
            headers=auth_headers,
            json={"entity_type": "list", "entity_id": test_list.id},
        )

        assert response.status_code == 201

    def test_create_wiki_link_board(
        self, client, db_session, auth_headers, test_board, regular_user
    ):
        """Test linking wiki to board successfully"""
        wiki = Wiki(
            name="Test Wiki",
            board_id=test_board.id,
            content=[{"type": "paragraph", "children": [{"text": "Test content"}]}],
            created_by=regular_user.id,
        )
        db_session.add(wiki)
        db_session.commit()

        response = client.post(
            f"/api/wikis/{wiki.id}/links",
            headers=auth_headers,
            json={"entity_type": "board", "entity_id": test_board.id},
        )

        assert response.status_code == 201

    def test_create_wiki_link_already_exists(
        self, client, db_session, auth_headers, test_board, regular_user, test_card
    ):
        """Test creating duplicate link"""
        wiki = Wiki(
            name="Test Wiki",
            board_id=test_board.id,
            content=[{"type": "paragraph", "children": [{"text": "Test content"}]}],
            created_by=regular_user.id,
        )
        db_session.add(wiki)
        db_session.commit()

        # Create first link
        db.session.execute(
            wiki_entity_links.insert().values(
                wiki_id=wiki.id, entity_type="card", entity_id=test_card.id
            )
        )
        db_session.commit()

        # Try to create duplicate link
        response = client.post(
            f"/api/wikis/{wiki.id}/links",
            headers=auth_headers,
            json={"entity_type": "card", "entity_id": test_card.id},
        )

        assert response.status_code == 400
        data = response.get_json()
        assert "already exists" in data["error"].lower()

    def test_create_wiki_link_wiki_not_found(self, client, db_session, auth_headers):
        """Test linking non-existent wiki"""
        response = client.post(
            "/api/wikis/99999/links",
            headers=auth_headers,
            json={"entity_type": "card", "entity_id": 1},
        )

        assert response.status_code == 404

    def test_create_wiki_link_entity_not_found(
        self, client, db_session, auth_headers, test_board, regular_user
    ):
        """Test linking to non-existent entity"""
        wiki = Wiki(
            name="Test Wiki",
            board_id=test_board.id,
            content=[{"type": "paragraph", "children": [{"text": "Test content"}]}],
            created_by=regular_user.id,
        )
        db_session.add(wiki)
        db_session.commit()

        response = client.post(
            f"/api/wikis/{wiki.id}/links",
            headers=auth_headers,
            json={"entity_type": "card", "entity_id": 99999},
        )

        assert response.status_code == 404

    def test_create_wiki_link_unauthorized(
        self, client, db_session, test_board, regular_user
    ):
        """Test creating link without authentication"""
        wiki = Wiki(
            name="Test Wiki",
            board_id=test_board.id,
            content=[{"type": "paragraph", "children": [{"text": "Test content"}]}],
            created_by=regular_user.id,
        )
        db_session.add(wiki)
        db_session.commit()

        response = client.post(
            f"/api/wikis/{wiki.id}/links",
            json={"entity_type": "card", "entity_id": 1},
        )

        assert response.status_code == 401

    # ========== DELETE /wikis/<wiki_id>/links ==========

    def test_delete_wiki_link_success(
        self, client, db_session, auth_headers, test_board, regular_user, test_card
    ):
        """Test deleting a wiki link successfully"""
        wiki = Wiki(
            name="Test Wiki",
            board_id=test_board.id,
            content=[{"type": "paragraph", "children": [{"text": "Test content"}]}],
            created_by=regular_user.id,
        )
        db_session.add(wiki)
        db_session.commit()

        # Create link
        db.session.execute(
            wiki_entity_links.insert().values(
                wiki_id=wiki.id, entity_type="card", entity_id=test_card.id
            )
        )
        db_session.commit()

        response = client.delete(
            f"/api/wikis/{wiki.id}/links",
            headers=auth_headers,
            json={"entity_type": "card", "entity_id": test_card.id},
        )

        assert response.status_code == 200
        data = response.get_json()
        assert "message" in data

        # Verify link is deleted
        from sqlalchemy import select

        link = db.session.scalars(
            select(wiki_entity_links).where(
                wiki_entity_links.c.wiki_id == wiki.id,
                wiki_entity_links.c.entity_type == "card",
                wiki_entity_links.c.entity_id == test_card.id,
            )
        ).first()
        assert link is None

    def test_delete_wiki_link_wiki_not_found(self, client, db_session, auth_headers):
        """Test deleting link for non-existent wiki"""
        response = client.delete(
            "/api/wikis/99999/links",
            headers=auth_headers,
            json={"entity_type": "card", "entity_id": 1},
        )

        assert response.status_code == 404

    def test_delete_wiki_link_not_found(
        self, client, db_session, auth_headers, test_board, regular_user
    ):
        """Test deleting non-existent link"""
        wiki = Wiki(
            name="Test Wiki",
            board_id=test_board.id,
            content=[{"type": "paragraph", "children": [{"text": "Test content"}]}],
            created_by=regular_user.id,
        )
        db_session.add(wiki)
        db_session.commit()

        response = client.delete(
            f"/api/wikis/{wiki.id}/links",
            headers=auth_headers,
            json={"entity_type": "card", "entity_id": 99999},
        )

        assert response.status_code == 404

    def test_delete_wiki_link_unauthorized(
        self, client, db_session, test_board, regular_user
    ):
        """Test deleting link without authentication"""
        wiki = Wiki(
            name="Test Wiki",
            board_id=test_board.id,
            content=[{"type": "paragraph", "children": [{"text": "Test content"}]}],
            created_by=regular_user.id,
        )
        db_session.add(wiki)
        db_session.commit()

        response = client.delete(
            f"/api/wikis/{wiki.id}/links",
            json={"entity_type": "card", "entity_id": 1},
        )

        assert response.status_code == 401