/**
 * Edge-compatible audit logging utility
 * This version avoids direct database imports and can be used in Edge Runtime
 */

import { AUDIT_ACTIONS, RESOURCE_TYPES } from "./auditLog.js";

/**
 * Log an audit event in Edge Runtime compatible way
 * @param {Object} params - Audit log parameters
 */
export async function logAuditEventAsync({
	action,
	userId = null,
	resourceType = null,
	resourceId = null,
	ipAddress = null,
	userAgent = null,
	details = null,
	timestamp = null,
}) {
	try {
		// In Edge Runtime or when database is not available, log to console
		if (
			typeof EdgeRuntime !== "undefined" ||
			process.env.NEXT_RUNTIME === "edge"
		) {
			console.log(
				`[Audit Log - Edge] ${action} by user ${
					userId || "anonymous"
				} on ${resourceType}:${resourceId}`,
				{
					details,
					ipAddress,
					userAgent,
					timestamp: timestamp || new Date().toISOString(),
				}
			);
			return;
		}

		// Try to make an API call to log the event
		try {
			const response = await fetch("/api/audit-logs/log", {
				method: "POST",
				headers: {
					"Content-Type": "application/json",
				},
				body: JSON.stringify({
					action,
					userId,
					resourceType,
					resourceId,
					ipAddress,
					userAgent,
					details,
					timestamp,
				}),
			});

			if (!response.ok) {
				throw new Error(`HTTP ${response.status}`);
			}
		} catch (fetchError) {
			// Fallback to console logging if API call fails
			console.log(
				`[Audit Log - Fallback] ${action} by user ${
					userId || "anonymous"
				} on ${resourceType}:${resourceId}`,
				{
					details,
					ipAddress,
					userAgent,
					timestamp: timestamp || new Date().toISOString(),
					error: fetchError.message,
				}
			);
		}
	} catch (error) {
		console.error("Failed to log audit event:", error);
	}
}

/**
 * Helper function to extract client information from request (Edge compatible)
 * @param {Request} req - The request object
 * @returns {Object} Object containing IP address and user agent
 */
export function getClientInfoEdgeCompatible(req) {
	const ipAddress =
		req.headers.get("x-forwarded-for") ||
		req.headers.get("x-real-ip") ||
		req.headers.get("cf-connecting-ip") ||
		"unknown";

	const userAgent = req.headers.get("user-agent") || "unknown";

	return { ipAddress, userAgent };
}

/**
 * Middleware helper to log API actions (Edge compatible)
 */
export async function logApiActionAsync(
	req,
	action,
	resourceType,
	resourceId,
	session,
	additionalDetails = {}
) {
	const { ipAddress, userAgent } = getClientInfoEdgeCompatible(req);

	await logAuditEventAsync({
		action,
		userId: session?.user?.id || null,
		resourceType,
		resourceId,
		ipAddress,
		userAgent,
		details: {
			method: req.method,
			url: req.url,
			...additionalDetails,
		},
	});
}

export { AUDIT_ACTIONS, RESOURCE_TYPES };