#include <Atomic/IO/Log.h>
#include <Atomic/IO/File.h>
#include <Atomic/IO/FileSystem.h>
#include <Atomic/Resource/JSONFile.h>

#include "ProjectSettings.h"

namespace ToolCore
{

	ProjectSettings::ProjectSettings(Context* context) : Object(context),
		desktopSettings_(new DesktopProjectSettings()),
		androidSettings_(new AndroidProjectSettings())
	{
		SetDefault();
	}

	ProjectSettings::~ProjectSettings()
	{

	}

	void ProjectSettings::SetDefault()
	{
		name_ = "AtomicProject";
		platforms_.Clear();
		platforms_.Push("desktop");
	}

	bool ProjectSettings::GetSupportsDesktop() const
	{
		return platforms_.Contains("desktop");
	}

	bool ProjectSettings::GetSupportsAndroid() const
	{
		return platforms_.Contains("android");
	}

	bool ProjectSettings::GetSupportsIOS() const
	{
		return platforms_.Contains("ios");
	}

	bool ProjectSettings::GetSupportsWeb() const
	{
		return platforms_.Contains("web");
	}

	bool ProjectSettings::GetSupportsPlatform(const String& platform) const
	{
		return platforms_.Contains(platform);
	}

	void ProjectSettings::AddSupportedPlatform(const String& platform)
	{
		if (!ValidPlatform(platform))
		{
			ATOMIC_LOGERRORF("ProjectPlatformSettings::AddSupportedPlatform - Attempting to add invalid platform: %s", platform.CString());
			return;
		}

		if (platforms_.Contains(platform))
			return;

		platforms_.Push(platform);
	}

	bool ProjectSettings::ValidPlatform(const String& platform) const
	{
		if (platform == "desktop")
			return true;
		if (platform == "android")
			return true;
		if (platform == "ios")
			return true;
		if (platform == "linux")
			return true;
		if (platform == "web")
			return true;

		return false;

	}

	bool ProjectSettings::Load(const String& path)
	{
		FileSystem* fileSystem = GetSubsystem<FileSystem>();

		if (!fileSystem->FileExists(path))
		{
            ATOMIC_LOGERRORF("No platform settings specified, using default: %s", path.CString());
			SetDefault();
			return true;
		}

		SharedPtr<File> file(new File(context_, path));
		if (!file->IsOpen())
		{
			ATOMIC_LOGERRORF("Unable to open platform settings: %s", path.CString());
			return false;
		}

		SharedPtr<JSONFile> jsonFile(new JSONFile(context_));
		bool result = jsonFile->Load(*file);
		file->Close();

		if (!result)
		{
			ATOMIC_LOGERRORF("Unable to load platform settings: %s", path.CString());
			return false;
		}

		JSONValue root = jsonFile->GetRoot();
		if (!root.IsObject())
		{
			ATOMIC_LOGERRORF("No root object in platform settings: %s", path.CString());
			return false;
		}

		JSONArray platforms = root["platforms"].GetArray();

		platforms_.Clear();

		if (!platforms.Size())
		{
			ATOMIC_LOGERRORF("No platforms array defined in platform settings: %s, using default", path.CString());
			SetDefault();
		}
		else
		{
			for (unsigned i = 0; i < platforms.Size(); i++)
			{
				const String& platform = platforms[i].GetString();

				if (!ValidPlatform(platform))
				{
					ATOMIC_LOGERRORF("Unknown platform %s in platform settings: %s, skipping", platform.CString(), path.CString());
					continue;
				}

				platforms_.Push(platform);
			}
		}

		if (!platforms_.Size())
		{
            ATOMIC_LOGERRORF("No valid platforms defined in platform settings: %s, using default", path.CString());
			SetDefault();
		}

		name_ = root["name"].GetString();

		if (!name_.Length())
			name_ = "AtomicProject";

		desktopSettings_->Read(root);
		androidSettings_->Read(root);

		return true;
	}

	void ProjectSettings::Save(const String& path)
	{
		SharedPtr<JSONFile> jsonFile(new JSONFile(context_));

		JSONValue& root = jsonFile->GetRoot();

		SharedPtr<File> file(new File(context_, path, FILE_WRITE));

		desktopSettings_->Write(root);
		androidSettings_->Write(root);

		jsonFile->Save(*file, String("   "));

		file->Close();

	}

}