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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright (C) 2021, Google Inc.
 *
 * Test:
 * - Multiple reconfigurations of the Camera without stopping the CameraManager
 * - Validate there are no file descriptor leaks when using IPC
 */

#include <dirent.h>
#include <fstream>
#include <iostream>

#include <libcamera/base/event_dispatcher.h>
#include <libcamera/base/file.h>
#include <libcamera/base/thread.h>
#include <libcamera/base/timer.h>

#include <libcamera/framebuffer_allocator.h>

#include "camera_test.h"
#include "test.h"

using namespace libcamera;
using namespace std;
using namespace std::chrono_literals;

namespace {

class CameraReconfigure : public CameraTest, public Test
{
public:
	/* Initialize CameraTest with isolated IPA */
	CameraReconfigure()
		: CameraTest(kCamId_, true)
	{
	}

private:
	static constexpr const char *kCamId_ = "platform/vimc.0 Sensor B";
	static constexpr const char *kIpaProxyName_ = "vimc_ipa_proxy";
	static constexpr unsigned int kNumOfReconfigures_ = 10;

	void requestComplete(Request *request)
	{
		if (request->status() != Request::RequestComplete)
			return;

		const Request::BufferMap &buffers = request->buffers();

		const Stream *stream = buffers.begin()->first;
		FrameBuffer *buffer = buffers.begin()->second;

		/* Reuse the request and re-queue it with the same buffers. */
		request->reuse();
		request->addBuffer(stream, buffer);
		camera_->queueRequest(request);
	}

	int startAndStop()
	{
		StreamConfiguration &cfg = config_->at(0);

		if (camera_->acquire()) {
			cerr << "Failed to acquire the camera" << endl;
			return TestFail;
		}

		if (camera_->configure(config_.get())) {
			cerr << "Failed to set default configuration" << endl;
			return TestFail;
		}

		Stream *stream = cfg.stream();

		/*
		 * The configuration is consistent so we can re-use the
		 * same buffer allocation for each run.
		 */