/*************************************************************************/
/*  script_debugger_remote.h                                             */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
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/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur.                 */
/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md).   */
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/* "Software"), to deal in the Software without restriction, including   */
/* without limitation the rights to use, copy, modify, merge, publish,   */
/* distribute, sublicense, and/or sell copies of the Software, and to    */
/* permit persons to whom the Software is furnished to do so, subject to */
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/* included in all copies or substantial portions of the Software.       */
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/*************************************************************************/

#ifndef SCRIPT_DEBUGGER_REMOTE_H
#define SCRIPT_DEBUGGER_REMOTE_H

#include "core/io/packet_peer.h"
#include "core/io/stream_peer_tcp.h"
#include "core/list.h"
#include "core/os/os.h"
#include "core/script_language.h"

class ScriptDebuggerRemote : public ScriptDebugger {

public:
	class ResourceInfo {
	public:
		String path;
		String format;
		String type;
		RID id;
		int vram;
		bool operator<(const ResourceInfo &p_img) const { return vram == p_img.vram ? id < p_img.id : vram > p_img.vram; }
		ResourceInfo() {
			vram = 0;
		}
	};

	class ResourceUsage {
	public:
		List<ResourceInfo> infos;

		Array serialize();
		bool deserialize(const Array &p_arr);
	};

	class FrameInfo {
	public:
		StringName name;
		float self_time;
		float total_time;

		FrameInfo() {
			self_time = 0;
			total_time = 0;
		}
	};

	class FrameFunction {
	public:
		int sig_id;
		int call_count;
		StringName name;
		float self_time;
		float total_time;

		FrameFunction() {
			sig_id = -1;
			call_count = 0;
			self_time = 0;
			total_time = 0;
		}
	};

	class ScriptStackVariable {
	public:
		String name;
		Variant value;
		int type;
		ScriptStackVariable() {
			type = -1;
		}

		Array serialize(int max_size = 1 << 20); // 1 MiB default.
		bool deserialize(const Array &p_arr);
	};

	class ScriptStackDump {
	public:
		List<ScriptLanguage::StackInfo> frames;
		ScriptStackDump() {}

		Array serialize();
		bool deserialize(const Array &p_arr);
	};

	class Message {

	public:
		String message;
		Array data;

		Message() {}
	};

	class OutputError {
	public:
		int hr;
		int min;
		int sec;
		int msec;
		String source_file;
		String source_func;
		int source_line;
		String error;
		String error_descr;
		bool warning;
		Vector<ScriptLanguage::StackInfo> callstack;

		OutputError() {
			hr = -1;
			min = -1;
			sec = -1;
			msec = -1;
			source_line = -1;
			warning = false;
		}

		Array serialize();
		bool deserialize(const Array &p_arr);
	};

	struct FrameData {

		StringName name;
		Array data;
	};

	class ProfilerSignature {
	public:
		StringName name;
		int id;

		Array serialize();
		bool deserialize(const Array &p_arr);

		ProfilerSignature() {
			id = -1;
		};
	};

	class ProfilerFrame {
	public:
		int frame_number;
		float frame_time;
		float idle_time;
		float physics_time;
		float physics_frame_time;
		float script_time;

		Vector<FrameData> frames_data;
		Vector<FrameFunction> frame_functions;

		ProfilerFrame() {
			frame_number = 0;
			frame_time = 0;
			idle_time = 0;
			physics_time = 0;
			physics_frame_time = 0;
		}

		Array serialize();
		bool deserialize(const Array &p_arr);
	};

	class NetworkProfilerFrame {
	public:
		Vector<MultiplayerAPI::ProfilingInfo> infos;

		Array serialize();
		bool deserialize(const Array &p_arr);

		NetworkProfilerFrame(){};
	};

protected:
	struct ProfileInfoSort {

		bool operator()(ScriptLanguage::ProfilingInfo *A, ScriptLanguage::ProfilingInfo *B) const {
			return A->total_time < B->total_time;
		}
	};

	Vector<ScriptLanguage::ProfilingInfo> profile_info;
	Vector<ScriptLanguage::ProfilingInfo *> profile_info_ptrs;
	Vector<MultiplayerAPI::ProfilingInfo> network_profile_info;

	Map<StringName, int> profiler_function_signature_map;
	float frame_time, idle_time, physics_time, physics_frame_time;

	bool profiling;
	bool visual_profiling;
	bool network_profiling;
	int max_frame_functions;
	bool skip_profile_frame;
	bool reload_all_scripts;

	Ref<StreamPeerTCP> tcp_client;
	Ref<PacketPeerStream> packet_peer_stream;

	uint64_t last_perf_time;
	uint64_t last_net_prof_time;
	uint64_t last_net_bandwidth_time;
	Object *performance;
	bool requested_quit;
	Mutex *mutex;

	List<String> output_strings;
	List<Message> messages;
	int max_messages_per_frame;
	int n_messages_dropped;
	List<OutputError> errors;
	int max_errors_per_second;
	int max_warnings_per_second;
	int n_errors_dropped;
	int n_warnings_dropped;

	int max_cps;
	int char_count;
	int err_count;
	int warn_count;
	uint64_t last_msec;
	uint64_t msec_count;

	bool locking; //hack to avoid a deadloop
	static void _print_handler(void *p_this, const String &p_string, bool p_error);

	PrintHandlerList phl;

	void _get_output();
	void _poll_events();
	uint32_t poll_every;

	void _parse_message(const String p_command, const Array &p_data, ScriptLanguage *p_script = NULL);

	void _set_object_property(ObjectID p_id, const String &p_property, const Variant &p_value);

	void _send_object_id(ObjectID p_id);
	void _send_video_memory();

	Ref<MultiplayerAPI> multiplayer;

	ErrorHandlerList eh;
	static void _err_handler(void *, const char *, const char *, int p_line, const char *, const char *, ErrorHandlerType p_type);

	void _put_msg(String p_message, Array p_data);
	void _send_profiling_data(bool p_for_frame);
	void _send_network_profiling_data();
	void _send_network_bandwidth_usage();

	Vector<FrameData> profile_frame_data;

	bool skip_breakpoints;

public:
	typedef void (*ResourceUsageFunc)(ResourceUsage *);
	typedef Error (*ParseMessageFunc)(const String &p_name, const Array &p_msg); // Returns true if something was found (stopping propagation).

	static ResourceUsageFunc resource_usage_func;
	static ParseMessageFunc scene_tree_parse_func; // Could be made into list, extensible...

	Error connect_to_host(const String &p_host, uint16_t p_port);
	bool is_peer_connected();
	virtual void debug(ScriptLanguage *p_script, bool p_can_continue = true, bool p_is_error_breakpoint = false);
	virtual void idle_poll();
	virtual void line_poll();

	virtual bool is_remote() const { return true; }
	virtual void request_quit();

	virtual void send_message(const String &p_message, const Array &p_args);
	virtual void send_error(const String &p_func, const String &p_file, int p_line, const String &p_err, const String &p_descr, ErrorHandlerType p_type, const Vector<ScriptLanguage::StackInfo> &p_stack_info);

	virtual void set_multiplayer(Ref<MultiplayerAPI> p_multiplayer);

	virtual bool is_profiling() const;
	virtual void add_profiling_frame_data(const StringName &p_name, const Array &p_data);

	virtual void profiling_start();
	virtual void profiling_end();
	virtual void profiling_set_frame_times(float p_frame_time, float p_idle_time, float p_physics_time, float p_physics_frame_time);

	virtual void set_skip_breakpoints(bool p_skip_breakpoints);

	ScriptDebuggerRemote();
	~ScriptDebuggerRemote();
};

#endif // SCRIPT_DEBUGGER_REMOTE_H