#include "catch.hpp"

//---- Mocks -------------------------------------------------------------------

#include <ftl/rgbd/source.hpp>
#include <ftl/config.h>

static std::string last_type = "";

namespace ftl {
namespace rgbd {

class SnapshotReader {
	public:
	SnapshotReader(const std::string &) {}
};

namespace detail {

class ImageSource : public ftl::rgbd::detail::Source {
	public:
	ImageSource(ftl::rgbd::Source *host) : ftl::rgbd::detail::Source(host) {
		last_type = "image";
	}
	ImageSource(ftl::rgbd::Source *host, const std::string &f) : ftl::rgbd::detail::Source(host) {
		last_type = "image";
	}

	bool grab() { return true; };
	bool isReady() { return true; };
};

class StereoVideoSource : public ftl::rgbd::detail::Source {
	public:
	StereoVideoSource(ftl::rgbd::Source *host) : ftl::rgbd::detail::Source(host) {
		last_type = "video";
	}
	StereoVideoSource(ftl::rgbd::Source *host, const std::string &f) : ftl::rgbd::detail::Source(host) {
		last_type = "video";
	}

	bool grab() { return true; };
	bool isReady() { return true; };
};

class NetSource : public ftl::rgbd::detail::Source {
	public:
	NetSource(ftl::rgbd::Source *host) : ftl::rgbd::detail::Source(host) {
		last_type = "net";
	}

	bool grab() { return true; };
	bool isReady() { return true; };
};

class SnapshotSource : public ftl::rgbd::detail::Source {
	public:
	SnapshotSource(ftl::rgbd::Source *host, ftl::rgbd::SnapshotReader &r, const std::string &) : ftl::rgbd::detail::Source(host) {
		last_type = "snapshot";
	}

	bool grab() { return true; };
	bool isReady() { return true; };
};

class RealsenseSource : public ftl::rgbd::detail::Source {
	public:
	RealsenseSource(ftl::rgbd::Source *host) : ftl::rgbd::detail::Source(host) {
		last_type = "realsense";
	}

	bool grab() { return true; };
	bool isReady() { return true; };
};

}	
}	
}

//---- Sources -----------------------------------------------------------------

// Prevent these headers...
#define _FTL_RGBD_STEREOVIDEO_HPP_
#define _FTL_RGBD_NET_HPP_
#define _FTL_RGBD_SNAPSHOT_HPP_
#define _FTL_RGBD_SNAPSHOT_SOURCE_HPP_
#define _FTL_RGBD_IMAGE_HPP_
#define _FTL_RGBD_REALSENSE_HPP_

#include "../src/source.cpp"


//---- Tests -------------------------------------------------------------------

using ftl::rgbd::Source;
using ftl::config::json_t;

TEST_CASE("ftl::create<Source>(cfg)", "[rgbd]") {
	json_t global = {{"$id","ftl://test"}};
	ftl::config::configure(global);

	SECTION("with valid image file uri") {
		json_t cfg = {
			{"$id","ftl://test/1"},
			{"uri","file://" FTL_SOURCE_DIRECTORY "/components/rgbd-sources/test/data/image.png"}
		};

		Source *src = ftl::create<Source>(cfg);

		REQUIRE( src );
		REQUIRE( src->isReady() );
		REQUIRE( last_type == "image"); 
	}

	SECTION("with valid video file uri") {
		json_t cfg = {
			{"$id","ftl://test/2"},
			{"uri","file://" FTL_SOURCE_DIRECTORY "/components/rgbd-sources/test/data/video.mp4"}
		};

		Source *src = ftl::create<Source>(cfg);

		REQUIRE( src );
		REQUIRE( src->isReady() );
		REQUIRE( last_type == "video");
	}

	SECTION("with valid net uri") {
		json_t cfg = {
			{"$id","ftl://test/2"},
			{"uri","ftl://utu.fi/dummy"}
		};

		Source *src = ftl::create<Source>(cfg);

		REQUIRE( src );
		REQUIRE( src->isReady() );
		REQUIRE( last_type == "net");
	}

	SECTION("with an invalid uri") {
		json_t cfg = {
			{"$id","ftl://test/2"},
			{"uri","not a uri"}
		};

		Source *src = ftl::create<Source>(cfg);

		REQUIRE( src );
		REQUIRE( !src->isReady() );
	}

	SECTION("with an invalid file uri") {
		json_t cfg = {
			{"$id","ftl://test/2"},
			{"uri","file:///not/a/file"}
		};

		Source *src = ftl::create<Source>(cfg);

		REQUIRE( src );
		REQUIRE( !src->isReady() );
	}

	SECTION("with a missing file") {
		json_t cfg = {
			{"$id","ftl://test/2"},
			{"uri","file:///data/image2.png"}
		};

		Source *src = ftl::create<Source>(cfg);

		REQUIRE( src );
		REQUIRE( !src->isReady() );
	}
}

TEST_CASE("Source::set(uri)", "[rgbd]") {
	json_t global = {{"$id","ftl://test"}};
	ftl::config::configure(global);

	SECTION("change to different valid URI type") {
		json_t cfg = {
			{"$id","ftl://test/1"},
			{"uri","file://" FTL_SOURCE_DIRECTORY "/components/rgbd-sources/test/data/image.png"}
		};

		Source *src = ftl::create<Source>(cfg);

		REQUIRE( src );
		REQUIRE( src->isReady() );
		REQUIRE( last_type == "image" );

		src->set("uri", "file://" FTL_SOURCE_DIRECTORY "/components/rgbd-sources/test/data/video.mp4");

		REQUIRE( src->isReady() );
		REQUIRE( last_type == "video" ); 
	}
}