/**
 * POST /api/geoportal/enrich
 *
 * Enriches parcels for a given SIRUTA. Skips already-enriched features.
 * Tries: 1) Active eTerra session, 2) Env credentials, 3) Returns clear error.
 * Enrichment data is PERSISTED in GisFeature.enrichment column.
 *
 * Body: { siruta: string }
 */
import { NextResponse } from "next/server";
import { EterraClient } from "@/modules/parcel-sync/services/eterra-client";
import { enrichFeatures } from "@/modules/parcel-sync/services/enrich-service";
import { getSessionCredentials } from "@/modules/parcel-sync/services/session-store";

export const runtime = "nodejs";
export const dynamic = "force-dynamic";

export async function POST(req: Request) {
  try {
    const body = (await req.json()) as { siruta?: string };
    const siruta = String(body.siruta ?? "").trim();

    if (!siruta) {
      return NextResponse.json({ error: "SIRUTA obligatoriu" }, { status: 400 });
    }

    // Try multiple credential sources
    const session = getSessionCredentials();
    const username = session?.username || process.env.ETERRA_USERNAME || "";
    const password = session?.password || process.env.ETERRA_PASSWORD || "";

    if (!username || !password) {
      return NextResponse.json(
        { error: "Credentiale eTerra indisponibile. Deschide eTerra Parcele si logheaza-te mai intai, apoi revino aici." },
        { status: 401 }
      );
    }

    let client: EterraClient;
    try {
      client = await EterraClient.create(username, password);
    } catch (loginErr) {
      const loginMsg = loginErr instanceof Error ? loginErr.message : "Login esuat";
      return NextResponse.json(
        { error: `Login eTerra esuat: ${loginMsg}. Verifica credentialele in eTerra Parcele.` },
        { status: 401 }
      );
    }

    const result = await enrichFeatures(client, siruta);

    return NextResponse.json({
      status: result.status,
      enrichedCount: result.enrichedCount,
      buildingCrossRefs: result.buildingCrossRefs,
      message: result.enrichedCount > 0
        ? `${result.enrichedCount} parcele imbogatite cu succes`
        : "Toate parcelele au deja date de enrichment",
    });
  } catch (error) {
    const msg = error instanceof Error ? error.message : "Eroare la enrichment";
    // Provide actionable error messages
    if (msg.includes("timeout") || msg.includes("ETIMEDOUT")) {
      return NextResponse.json({ error: "eTerra nu raspunde (timeout). Incearca mai tarziu." }, { status: 504 });
    }
    if (msg.includes("maintenance") || msg.includes("Mentenan")) {
      return NextResponse.json({ error: "eTerra este in mentenanta. Incearca mai tarziu." }, { status: 503 });
    }
    return NextResponse.json({ error: msg }, { status: 500 });
  }
}