import { NextResponse } from "next/server";
import { EterraClient } from "@/modules/parcel-sync/services/eterra-client";
import { PrismaClient } from "@prisma/client";

const prisma = new PrismaClient();

/**
 * GET /api/eterra/debug-fields?siruta=161829&cadRef=77102
 *
 * Diagnostic endpoint — shows all available fields from eTerra + local DB
 * for a specific parcel and its buildings.
 */
export async function GET(request: Request) {
  const url = new URL(request.url);
  const siruta = url.searchParams.get("siruta") ?? "161829";
  const cadRef = url.searchParams.get("cadRef") ?? "77102";

  const username = process.env.ETERRA_USERNAME;
  const password = process.env.ETERRA_PASSWORD;
  if (!username || !password) {
    return NextResponse.json({ error: "ETERRA creds missing" }, { status: 500 });
  }

  const result: Record<string, unknown> = {
    query: { siruta, cadRef },
    timestamp: new Date().toISOString(),
  };

  try {
    const client = await EterraClient.create(username, password);

    // 1. GIS layer: TERENURI_ACTIVE — raw attributes
    const terenuri = await client.listLayerByWhere(
      { id: "TERENURI_ACTIVE", name: "TERENURI_ACTIVE", endpoint: "aut" },
      `ADMIN_UNIT_ID=${siruta} AND IS_ACTIVE=1 AND NATIONAL_CADASTRAL_REFERENCE='${cadRef}'`,
      { limit: 1, outFields: "*" },
    );
    const parcelAttrs = terenuri[0]?.attributes ?? null;
    result.gis_parcela = {
      found: !!parcelAttrs,
      fields: parcelAttrs
        ? Object.entries(parcelAttrs)
            .sort(([a], [b]) => a.localeCompare(b))
            .map(([k, v]) => ({ field: k, value: v, type: typeof v }))
        : [],
    };

    // 2. GIS layer: CLADIRI_ACTIVE — buildings on this parcel
    const cladiri = await client.listLayerByWhere(
      { id: "CLADIRI_ACTIVE", name: "CLADIRI_ACTIVE", endpoint: "aut" },
      `ADMIN_UNIT_ID=${siruta} AND IS_ACTIVE=1 AND NATIONAL_CADASTRAL_REFERENCE LIKE '${cadRef}-%'`,
      { limit: 20, outFields: "*" },
    );
    result.gis_cladiri = {
      count: cladiri.length,
      buildings: cladiri.map((c) => {
        const a = c.attributes;
        return {
          cadastralRef: a.NATIONAL_CADASTRAL_REFERENCE,
          fields: Object.entries(a)
            .sort(([x], [y]) => x.localeCompare(y))
            .filter(([, v]) => v != null && v !== "" && v !== 0)
            .map(([k, v]) => ({ field: k, value: v, type: typeof v })),
        };
      }),
    };

    // 3. Immovable details (enrichment source)
    const immId = parcelAttrs?.IMMOVABLE_ID;
    const wsId = parcelAttrs?.WORKSPACE_ID;
    if (immId && wsId) {
      try {
        const details = await client.fetchImmovableParcelDetails(
          wsId as string | number,
          immId as string | number,
        );
        result.immovable_parcel_details = {
          count: details.length,
          items: details,
        };
      } catch (e) {
        result.immovable_parcel_details = {
          error: e instanceof Error ? e.message : String(e),
        };
      }

      // 4. Immovable list entry (address source)
      try {
        const listResponse = await client.fetchImmovableListByAdminUnit(
          wsId as number,
          siruta,
          0,
          5,
          true,
        );
        const items = (listResponse?.content ?? []) as Record<string, unknown>[];
        // Find our specific immovable
        const match = items.find(
          (item) => String(item.immovablePk) === String(immId) ||
            String(item.identifierDetails ?? "").includes(cadRef),
        );
        result.immovable_list_entry = {
          totalInUat: listResponse?.totalElements ?? "?",
          matchFound: !!match,
          entry: match ?? null,
          note: "Acest obiect contine campul immovableAddresses cu adresa completa",
        };
      } catch (e) {
        result.immovable_list_entry = {
          error: e instanceof Error ? e.message : String(e),
        };
      }

      // 5. Documentation data (owner source)
      try {
        const docResponse = await client.fetchDocumentationData(
          wsId as number,
          [String(immId)],
        );
        const immovables = docResponse?.immovables ?? [];
        const regs = docResponse?.partTwoRegs ?? [];
        result.documentation_data = {
          immovablesCount: immovables.length,
          immovables: immovables.slice(0, 3),
          registrationsCount: regs.length,
          registrations: regs.slice(0, 10),
          note: "partTwoRegs contine proprietarii (nodeType=P, nodeStatus=-1=radiat)",
        };
      } catch (e) {
        result.documentation_data = {
          error: e instanceof Error ? e.message : String(e),
        };
      }
    }

    // 6. Local DB data (what we have stored)
    const dbParcel = await prisma.gisFeature.findFirst({
      where: { layerId: "TERENURI_ACTIVE", siruta, cadastralRef: cadRef },
      select: {
        objectId: true,
        cadastralRef: true,
        areaValue: true,
        isActive: true,
        enrichment: true,
        enrichedAt: true,
        geometrySource: true,
      },
    });
    const dbBuildings = await prisma.gisFeature.findMany({
      where: {
        layerId: "CLADIRI_ACTIVE",
        siruta,
        cadastralRef: { startsWith: `${cadRef}-` },
      },
      select: {
        objectId: true,
        cadastralRef: true,
        areaValue: true,
        attributes: true,
      },
    });
    result.local_db = {
      parcel: dbParcel
        ? {
            objectId: dbParcel.objectId,
            cadastralRef: dbParcel.cadastralRef,
            areaValue: dbParcel.areaValue,
            enrichedAt: dbParcel.enrichedAt,
            geometrySource: dbParcel.geometrySource,
            enrichment: dbParcel.enrichment,
          }
        : null,
      buildings: dbBuildings.map((b) => ({
        objectId: b.objectId,
        cadastralRef: b.cadastralRef,
        areaValue: b.areaValue,
        is_legal: (b.attributes as Record<string, unknown>)?.IS_LEGAL,
      })),
    };
  } catch (e) {
    result.error = e instanceof Error ? e.message : String(e);
  }

  return NextResponse.json(result, {
    headers: { "Content-Type": "application/json; charset=utf-8" },
  });
}