// Force this API route to use Node.js runtime for database access
export const runtime = "nodejs";

import { getFieldHistory, hasFieldHistory } from "@/lib/queries/fieldHistory";
import { NextResponse } from "next/server";
import { withReadAuth } from "@/lib/middleware/auth";
import initializeDatabase from "@/lib/init-db";

// Make sure the DB is initialized before queries run
initializeDatabase();

async function getFieldHistoryHandler(req) {
	const { searchParams } = new URL(req.url);
	const tableName = searchParams.get("table_name");
	const recordId = searchParams.get("record_id");
	const fieldName = searchParams.get("field_name");
	const checkOnly = searchParams.get("check_only") === "true";

	if (!tableName || !recordId || !fieldName) {
		return NextResponse.json(
			{ error: "Missing required parameters: table_name, record_id, field_name" },
			{ status: 400 }
		);
	}

	try {
		if (checkOnly) {
			// Just check if history exists
			const exists = hasFieldHistory(tableName, parseInt(recordId), fieldName);
			return NextResponse.json({ hasHistory: exists });
		} else {
			// Get full history
			const history = getFieldHistory(tableName, parseInt(recordId), fieldName);
			return NextResponse.json(history);
		}
	} catch (error) {
		console.error("Error fetching field history:", error);
		return NextResponse.json(
			{ error: "Failed to fetch field history" },
			{ status: 500 }
		);
	}
}

// Protected route - require read authentication
export const GET = withReadAuth(getFieldHistoryHandler);