#include "stdafx.h"
#include "Emu/Memory/Memory.h"
#include "Emu/System.h"
#include "Emu/IdManager.h"
#include "Emu/SysCalls/SysCalls.h"

#include "Emu/FS/VFS.h"
#include "Emu/FS/vfsFile.h"
#include "Loader/PSF.h"
#include "sys_memory.h"
#include "sys_process.h"

SysCallBase sys_process("sys_process");

s32 process_getpid()
{
	// TODO: get current process id
	return 1;
}

s32 sys_process_getpid()
{
	sys_process.Log("sys_process_getpid() -> 1");
	return process_getpid();
}

s32 sys_process_getppid()
{
	sys_process.Todo("sys_process_getppid() -> 0");
	return 0;
}

s32 sys_process_exit(s32 status)
{
	sys_process.Warning("sys_process_exit(status=0x%x)", status);

	LV2_LOCK;

	if (!Emu.IsStopped())
	{
		sys_process.Success("Process finished");

		CallAfter([]()
		{
			Emu.Stop();
		});

		while (!Emu.IsStopped())
		{
			std::this_thread::sleep_for(std::chrono::milliseconds(1));
		}
	}

	return CELL_OK;
}

void sys_game_process_exitspawn(vm::cptr<char> path, u32 argv_addr, u32 envp_addr, u32 data_addr, u32 data_size, u32 prio, u64 flags)
{
	std::string _path = path.get_ptr();
	const std::string& from = "//";
	const std::string& to = "/";

	size_t start_pos = 0;
	while ((start_pos = _path.find(from, start_pos)) != std::string::npos) {
		_path.replace(start_pos, from.length(), to);
		start_pos += to.length();
	}

	sys_process.Todo("sys_game_process_exitspawn()");
	sys_process.Warning("path: %s", _path.c_str());
	sys_process.Warning("argv: 0x%x", argv_addr);
	sys_process.Warning("envp: 0x%x", envp_addr);
	sys_process.Warning("data: 0x%x", data_addr);
	sys_process.Warning("data_size: 0x%x", data_size);
	sys_process.Warning("prio: %d", prio);
	sys_process.Warning("flags: %d", flags);

	std::vector<std::string> argv;
	std::vector<std::string> env;

	if (argv_addr)
	{
		auto argvp = vm::cpptr<char>::make(argv_addr);
		while (argvp && *argvp)
		{
			argv.push_back(argvp[0].get_ptr());
			argvp++;
		}

		for (auto &arg : argv) {
			sys_process.Log("argument: %s", arg.c_str());
		}
	}

	if (envp_addr)
	{
		auto envp = vm::cpptr<char>::make(envp_addr);
		while (envp && *envp)
		{
			env.push_back(envp[0].get_ptr());
			envp++;
		}

		for (auto &en : env) {
			sys_process.Log("env_argument: %s", en.c_str());
		}
	}

	//TODO: execute the file in <path> with the args in argv
	//and the environment parameters in envp and copy the data
	//from data_addr into the adress space of the new process
	//then kill the current process

	Emu.Pause();
	sys_process.Success("Process finished");

	CallAfter([]()
	{
		Emu.Stop();
	});

	std::string real_path;

	Emu.GetVFS().GetDevice(_path.c_str(), real_path);

	Emu.BootGame(real_path, true);

	return;
}

void sys_game_process_exitspawn2(vm::cptr<char> path, u32 argv_addr, u32 envp_addr, u32 data_addr, u32 data_size, u32 prio, u64 flags)
{
	std::string _path = path.get_ptr();
	const std::string& from = "//";
	const std::string& to = "/";

	size_t start_pos = 0;
	while ((start_pos = _path.find(from, start_pos)) != std::string::npos) {
		_path.replace(start_pos, from.length(), to);
		start_pos += to.length();
	}

	sys_process.Warning("sys_game_process_exitspawn2()");
	sys_process.Warning("path: %s", _path.c_str());
	sys_process.Warning("argv: 0x%x", argv_addr);
	sys_process.Warning("envp: 0x%x", envp_addr);
	sys_process.Warning("data: 0x%x", data_addr);
	sys_process.Warning("data_size: 0x%x", data_size);
	sys_process.Warning("prio: %d", prio);
	sys_process.Warning("flags: %d", flags);

	std::vector<std::string> argv;
	std::vector<std::string> env;

	if (argv_addr)
	{
		auto argvp = vm::cpptr<char>::make(argv_addr);
		while (argvp && *argvp)
		{
			argv.push_back(argvp[0].get_ptr());
			argvp++;
		}

		for (auto &arg : argv)
		{
			sys_process.Log("argument: %s", arg.c_str());
		}
	}

	if (envp_addr)
	{
		auto envp = vm::cpptr<char>::make(envp_addr);
		while (envp && *envp)
		{
			env.push_back(envp[0].get_ptr());
			envp++;
		}

		for (auto &en : env)
		{
			sys_process.Log("env_argument: %s", en.c_str());
		}
	}

	//TODO: execute the file in <path> with the args in argv
	//and the environment parameters in envp and copy the data
	//from data_addr into the adress space of the new process
	//then kill the current process

	Emu.Pause();
	sys_process.Success("Process finished");

	CallAfter([]()
	{
		Emu.Stop();
	});
	
	std::string real_path;

	Emu.GetVFS().GetDevice(_path.c_str(), real_path);

	Emu.BootGame(real_path, true);

	return;
}

s32 sys_process_get_number_of_object(u32 object, vm::ptr<u32> nump)
{
	sys_process.Error("sys_process_get_number_of_object(object=0x%x, nump=*0x%x)", object, nump);

	switch(object)
	{
	case SYS_MEM_OBJECT:
	case SYS_MUTEX_OBJECT:
	case SYS_COND_OBJECT:
	case SYS_RWLOCK_OBJECT:
	case SYS_INTR_TAG_OBJECT:
	case SYS_INTR_SERVICE_HANDLE_OBJECT:
	case SYS_EVENT_QUEUE_OBJECT:
	case SYS_EVENT_PORT_OBJECT:
	case SYS_TRACE_OBJECT:
	case SYS_SPUIMAGE_OBJECT:
	case SYS_PRX_OBJECT:
	case SYS_SPUPORT_OBJECT:
	case SYS_LWMUTEX_OBJECT:
	case SYS_TIMER_OBJECT:
	case SYS_SEMAPHORE_OBJECT:
	case SYS_FS_FD_OBJECT:
	case SYS_LWCOND_OBJECT:
	case SYS_EVENT_FLAG_OBJECT:
	{
		*nump = Emu.GetIdManager().get_count_by_type(object);
		return CELL_OK;
	}	
	}

	return CELL_EINVAL;
}

s32 sys_process_get_id(u32 object, vm::ptr<u32> buffer, u32 size, vm::ptr<u32> set_size)
{
	sys_process.Error("sys_process_get_id(object=0x%x, buffer=*0x%x, size=%d, set_size=*0x%x)", object, buffer, size, set_size);

	switch (object)
	{
	case SYS_MEM_OBJECT:
	case SYS_MUTEX_OBJECT:
	case SYS_COND_OBJECT:
	case SYS_RWLOCK_OBJECT:
	case SYS_INTR_TAG_OBJECT:
	case SYS_INTR_SERVICE_HANDLE_OBJECT:
	case SYS_EVENT_QUEUE_OBJECT:
	case SYS_EVENT_PORT_OBJECT:
	case SYS_TRACE_OBJECT:
	case SYS_SPUIMAGE_OBJECT:
	case SYS_PRX_OBJECT:
	case SYS_SPUPORT_OBJECT:
	case SYS_LWMUTEX_OBJECT:
	case SYS_TIMER_OBJECT:
	case SYS_SEMAPHORE_OBJECT:
	case SYS_FS_FD_OBJECT:
	case SYS_LWCOND_OBJECT:
	case SYS_EVENT_FLAG_OBJECT:
	{
		const auto objects = Emu.GetIdManager().get_IDs_by_type(object);

		u32 i = 0;

		for (auto id = objects.begin(); i < size && id != objects.end(); id++, i++)
		{
			buffer[i] = *id;
		}

		*set_size = i;

		return CELL_OK;
	}
	}

	return CELL_EINVAL;
}

s32 process_is_spu_lock_line_reservation_address(u32 addr, u64 flags)
{
	if (!flags || flags & ~(SYS_MEMORY_ACCESS_RIGHT_SPU_THR | SYS_MEMORY_ACCESS_RIGHT_RAW_SPU))
	{
		return CELL_EINVAL;
	}

	// TODO
	return CELL_OK;
}

s32 sys_process_is_spu_lock_line_reservation_address(u32 addr, u64 flags)
{
	sys_process.Warning("sys_process_is_spu_lock_line_reservation_address(addr=0x%x, flags=0x%llx)", addr, flags);

	return process_is_spu_lock_line_reservation_address(addr, flags);
}

s32 _sys_process_get_paramsfo(vm::ptr<char> buffer)
{
	sys_process.Warning("_sys_process_get_paramsfo(buffer=0x%x)", buffer);

	if (!Emu.GetTitleID().length())
	{
		return CELL_ENOENT;
	}

	memset(buffer.get_ptr(), 0, 0x40);
	memcpy(buffer.get_ptr() + 1, Emu.GetTitleID().c_str(), std::min<size_t>(Emu.GetTitleID().length(), 9));

	return CELL_OK;
}

s32 process_get_sdk_version(u32 pid, s32& ver)
{
	// get correct SDK version for selected pid
	ver = Emu.GetSDKVersion();

	return CELL_OK;
}

s32 sys_process_get_sdk_version(u32 pid, vm::ptr<s32> version)
{
	sys_process.Warning("sys_process_get_sdk_version(pid=0x%x, version_addr=0x%x)", pid, version.addr());

	s32 sdk_ver;
	s32 ret = process_get_sdk_version(pid, sdk_ver);
	if (ret != CELL_OK)
	{
		return ret; // error code
	}
	else
	{
		*version = sdk_ver;
		return CELL_OK;
	}
}

s32 sys_process_kill(u32 pid)
{
	sys_process.Todo("sys_process_kill(pid=0x%x)", pid);
	return CELL_OK;
}

s32 sys_process_wait_for_child(u32 pid, vm::ptr<u32> status, u64 unk)
{
	sys_process.Todo("sys_process_wait_for_child(pid=0x%x, status_addr=0x%x, unk=0x%llx",
		pid, status.addr(), unk);
	return CELL_OK;
}

s32 sys_process_wait_for_child2(u64 unk1, u64 unk2, u64 unk3, u64 unk4, u64 unk5, u64 unk6)
{
	sys_process.Todo("sys_process_wait_for_child2(unk1=0x%llx, unk2=0x%llx, unk3=0x%llx, unk4=0x%llx, unk5=0x%llx, unk6=0x%llx)",
		unk1, unk2, unk3, unk4, unk5, unk6);
	return CELL_OK;
}

s32 sys_process_get_status(u64 unk)
{
	sys_process.Todo("sys_process_get_status(unk=0x%llx)", unk);
	//vm::write32(CPU.GPR[4], GetPPUThreadStatus(CPU));
	return CELL_OK;
}

s32 sys_process_detach_child(u64 unk)
{
	sys_process.Todo("sys_process_detach_child(unk=0x%llx)", unk);
	return CELL_OK;
}