"""Domains: top-level organizational buckets."""

from fastapi import APIRouter, Request, Form, Depends
from fastapi.templating import Jinja2Templates
from fastapi.responses import RedirectResponse
from sqlalchemy.ext.asyncio import AsyncSession
from typing import Optional

from core.database import get_db
from core.base_repository import BaseRepository
from core.sidebar import get_sidebar_data

router = APIRouter(prefix="/domains", tags=["domains"])
templates = Jinja2Templates(directory="templates")


@router.get("/")
async def list_domains(request: Request, db: AsyncSession = Depends(get_db)):
    repo = BaseRepository("domains", db)
    sidebar = await get_sidebar_data(db)
    items = await repo.list(sort="sort_order")
    return templates.TemplateResponse("domains.html", {
        "request": request, "sidebar": sidebar, "items": items,
        "page_title": "Domains", "active_nav": "domains",
    })


@router.get("/create")
async def create_form(request: Request, db: AsyncSession = Depends(get_db)):
    sidebar = await get_sidebar_data(db)
    return templates.TemplateResponse("domain_form.html", {
        "request": request, "sidebar": sidebar,
        "page_title": "New Domain", "active_nav": "domains",
        "item": None,
    })


@router.post("/create")
async def create_domain(
    request: Request,
    name: str = Form(...),
    color: Optional[str] = Form(None),
    description: Optional[str] = Form(None),
    db: AsyncSession = Depends(get_db),
):
    repo = BaseRepository("domains", db)
    domain = await repo.create({"name": name, "color": color, "description": description})
    return RedirectResponse(url="/domains", status_code=303)


@router.get("/{domain_id}/edit")
async def edit_form(domain_id: str, request: Request, db: AsyncSession = Depends(get_db)):
    repo = BaseRepository("domains", db)
    sidebar = await get_sidebar_data(db)
    item = await repo.get(domain_id)
    if not item:
        return RedirectResponse(url="/domains", status_code=303)
    return templates.TemplateResponse("domain_form.html", {
        "request": request, "sidebar": sidebar,
        "page_title": f"Edit {item['name']}", "active_nav": "domains",
        "item": item,
    })


@router.post("/{domain_id}/edit")
async def update_domain(
    domain_id: str,
    request: Request,
    name: str = Form(...),
    color: Optional[str] = Form(None),
    description: Optional[str] = Form(None),
    db: AsyncSession = Depends(get_db),
):
    repo = BaseRepository("domains", db)
    await repo.update(domain_id, {"name": name, "color": color, "description": description})
    return RedirectResponse(url="/domains", status_code=303)


@router.post("/{domain_id}/delete")
async def delete_domain(domain_id: str, db: AsyncSession = Depends(get_db)):
    repo = BaseRepository("domains", db)
    await repo.soft_delete(domain_id)
    return RedirectResponse(url="/domains", status_code=303)