#pragma once

#include "../app/AppConfig.h"
#include "../app/AppConfigProvider.h"
#include "../json/JsonWriter.h"
#include "../telemetry/CadenceTelemetryJson.h"

#include <cstdint>
#include <string>

namespace RenderCadenceCompositor
{
struct RuntimeStateJsonInput
{
	const AppConfig& config;
	const CadenceTelemetrySnapshot& telemetry;
	unsigned short serverPort = 0;
	bool videoOutputEnabled = false;
	std::string videoOutputStatus;
};

inline void WriteVideoIoStatusJson(JsonWriter& writer, const RuntimeStateJsonInput& input)
{
	writer.BeginObject();
	writer.KeyString("backend", "decklink");
	writer.KeyNull("modelName");
	writer.KeyBool("supportsInternalKeying", false);
	writer.KeyBool("supportsExternalKeying", false);
	writer.KeyBool("keyerInterfaceAvailable", false);
	writer.KeyBool("externalKeyingRequested", input.config.deckLink.externalKeyingEnabled);
	writer.KeyBool("externalKeyingActive", input.videoOutputEnabled && input.config.deckLink.externalKeyingEnabled);
	writer.KeyString("statusMessage", input.videoOutputStatus);
	writer.EndObject();
}

inline std::string RuntimeStateToJson(const RuntimeStateJsonInput& input)
{
	JsonWriter writer;
	writer.BeginObject();

	writer.Key("app");
	writer.BeginObject();
	writer.KeyUInt("serverPort", input.serverPort);
	writer.KeyUInt("oscPort", input.config.oscPort);
	writer.KeyString("oscBindAddress", input.config.oscBindAddress);
	writer.KeyDouble("oscSmoothing", input.config.oscSmoothing);
	writer.KeyBool("autoReload", input.config.autoReload);
	writer.KeyUInt("maxTemporalHistoryFrames", static_cast<uint64_t>(input.config.maxTemporalHistoryFrames));
	writer.KeyDouble("previewFps", input.config.previewFps);
	writer.KeyBool("enableExternalKeying", input.config.deckLink.externalKeyingEnabled);
	writer.KeyString("inputVideoFormat", input.config.inputVideoFormat);
	writer.KeyString("inputFrameRate", input.config.inputFrameRate);
	writer.KeyString("outputVideoFormat", input.config.outputVideoFormat);
	writer.KeyString("outputFrameRate", input.config.outputFrameRate);
	writer.EndObject();

	writer.Key("runtime");
	writer.BeginObject();
	writer.KeyUInt("layerCount", 0);
	writer.KeyBool("compileSucceeded", true);
	writer.KeyString("compileMessage", "Runtime state is not ported into RenderCadenceCompositor yet.");
	writer.EndObject();

	writer.Key("video");
	writer.BeginObject();
	writer.KeyBool("hasSignal", false);
	writer.KeyNull("width");
	writer.KeyNull("height");
	writer.KeyString("modeName", "output-only");
	writer.EndObject();

	writer.Key("decklink");
	WriteVideoIoStatusJson(writer, input);
	writer.Key("videoIO");
	WriteVideoIoStatusJson(writer, input);

	writer.Key("performance");
	writer.BeginObject();
	writer.KeyDouble("frameBudgetMs", FrameDurationMillisecondsFromRateString(input.config.outputFrameRate));
	writer.KeyNull("renderMs");
	writer.KeyNull("smoothedRenderMs");
	writer.KeyNull("budgetUsedPercent");
	writer.KeyNull("completionIntervalMs");
	writer.KeyNull("smoothedCompletionIntervalMs");
	writer.KeyNull("maxCompletionIntervalMs");
	writer.KeyUInt("lateFrameCount", input.telemetry.displayedLate);
	writer.KeyUInt("droppedFrameCount", input.telemetry.dropped);
	writer.KeyNull("flushedFrameCount");
	writer.Key("cadence");
	WriteCadenceTelemetryJson(writer, input.telemetry);
	writer.EndObject();

	writer.KeyNull("backendPlayout");
	writer.KeyNull("runtimeEvents");
	writer.Key("shaders");
	writer.BeginArray();
	writer.EndArray();
	writer.Key("stackPresets");
	writer.BeginArray();
	writer.EndArray();
	writer.Key("layers");
	writer.BeginArray();
	writer.EndArray();

	writer.EndObject();
	return writer.StringValue();
}
}