"""Wiki plugin routes — articles CRUD, categories, versioning."""
from __future__ import annotations
import uuid
from fastapi import APIRouter, Depends, HTTPException, Query, status
from sqlalchemy.ext.asyncio import AsyncSession
from app.core.db import get_db
from app.deps import get_current_user, require_permission
from app.plugins.builtins.wiki import services
from app.plugins.builtins.wiki.schemas import ArticleCreate, ArticleUpdate, CategoryCreate, CategoryUpdate
from app.core.audit import log_audit

router = APIRouter(prefix="/api/v1/wiki", tags=["wiki"])


@router.get("/articles")
async def list_articles(
    page: int = Query(1, ge=1),
    page_size: int = Query(20, ge=1, le=100),
    category_id: str | None = None,
    status: str | None = None,
    search: str | None = None,
    db: AsyncSession = Depends(get_db),
    current_user: dict = Depends(require_permission("wiki:read")),
):
    return await services.list_articles(
        db, uuid.UUID(current_user["tenant_id"]),
        page=page, page_size=page_size, category_id=category_id, status=status, search=search,
    )


@router.post("/articles", status_code=status.HTTP_201_CREATED)
async def create_article(
    body: ArticleCreate,
    db: AsyncSession = Depends(get_db),
    current_user: dict = Depends(require_permission("wiki:write")),
):
    tenant_id = uuid.UUID(current_user["tenant_id"])
    user_id = uuid.UUID(current_user["user_id"])
    result = await services.create_article(db, tenant_id, user_id, body.model_dump())
    if result and result.get("id"):
        await log_audit(db, tenant_id, user_id, "create", "wiki_article", uuid.UUID(result["id"]), changes={"title": body.title})
    return result


@router.get("/articles/{article_id}")
async def get_article(
    article_id: str,
    db: AsyncSession = Depends(get_db),
    current_user: dict = Depends(require_permission("wiki:read")),
):
    result = await services.get_article(db, uuid.UUID(current_user["tenant_id"]), uuid.UUID(article_id))
    if result is None:
        raise HTTPException(status_code=404, detail={"detail": "Article not found", "code": "not_found"})
    return result


@router.patch("/articles/{article_id}")
async def update_article(
    article_id: str,
    body: ArticleUpdate,
    db: AsyncSession = Depends(get_db),
    current_user: dict = Depends(require_permission("wiki:write")),
):
    result = await services.update_article(
        db, uuid.UUID(current_user["tenant_id"]), uuid.UUID(current_user["user_id"]),
        uuid.UUID(article_id), body.model_dump(exclude_unset=True),
    )
    if result is None:
        raise HTTPException(status_code=404, detail={"detail": "Article not found", "code": "not_found"})
    return result


@router.delete("/articles/{article_id}", status_code=status.HTTP_204_NO_CONTENT)
async def delete_article(
    article_id: str,
    db: AsyncSession = Depends(get_db),
    current_user: dict = Depends(require_permission("wiki:delete")),
):
    tenant_id = uuid.UUID(current_user["tenant_id"])
    user_id = uuid.UUID(current_user["user_id"])
    ok = await services.delete_article(db, tenant_id, uuid.UUID(article_id))
    if not ok:
        raise HTTPException(status_code=404, detail={"detail": "Article not found", "code": "not_found"})
    await log_audit(db, tenant_id, user_id, "delete", "wiki_article", uuid.UUID(article_id))


@router.get("/articles/{article_id}/versions")
async def list_versions(
    article_id: str,
    db: AsyncSession = Depends(get_db),
    current_user: dict = Depends(require_permission("wiki:read")),
):
    return {"items": await services.list_versions(db, uuid.UUID(current_user["tenant_id"]), uuid.UUID(article_id))}


@router.post("/articles/{article_id}/versions/{version}/restore")
async def restore_version(
    article_id: str,
    version: int,
    db: AsyncSession = Depends(get_db),
    current_user: dict = Depends(require_permission("wiki:write")),
):
    result = await services.restore_version(
        db, uuid.UUID(current_user["tenant_id"]), uuid.UUID(current_user["user_id"]),
        uuid.UUID(article_id), version,
    )
    if result is None:
        raise HTTPException(status_code=404, detail={"detail": "Version not found", "code": "not_found"})
    return result


@router.get("/categories")
async def list_categories(
    db: AsyncSession = Depends(get_db),
    current_user: dict = Depends(require_permission("wiki:read")),
):
    return {"items": await services.list_categories(db, uuid.UUID(current_user["tenant_id"]))}


@router.post("/categories", status_code=status.HTTP_201_CREATED)
async def create_category(
    body: CategoryCreate,
    db: AsyncSession = Depends(get_db),
    current_user: dict = Depends(require_permission("wiki:write")),
):
    return await services.create_category(
        db, uuid.UUID(current_user["tenant_id"]), uuid.UUID(current_user["user_id"]), body.model_dump(),
    )