from fastapi import APIRouter, Depends, Request
from fastapi.responses import RedirectResponse
from fastapi.templating import Jinja2Templates

from app.security.deps import require_auth
from app.services import dedup_review_service

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


@router.get("")
async def dedup_index(request: Request, user: dict = Depends(require_auth)):
    candidates = dedup_review_service.list_pending_candidates()
    return templates.TemplateResponse(request, "dedup/index.html", {"candidates": candidates})


@router.post("/scan")
async def scan(user: dict = Depends(require_auth)):
    await dedup_review_service.scan(triggered_by="manual")
    return RedirectResponse(url="/dedup", status_code=303)


@router.post("/confirm")
async def confirm(request: Request, user: dict = Depends(require_auth)):
    form = await request.form()
    candidate_ids = [int(v) for k, v in form.multi_items() if k == "candidate_id"]
    confirmed_by = user.get("email") or user.get("sub", "unknown")
    await dedup_review_service.confirm_and_apply(candidate_ids, confirmed_by)
    return RedirectResponse(url="/dedup", status_code=303)