#include <cstdlib>
#include <cstring>
#include <iostream>
#include <string>
#include <filesystem>

#include <unistd.h>
#include <errno.h>

#include <sys/wait.h>
#include <sys/mount.h>

/**
 * Log something.
 *
 * \param message to log
 */
void Pii_Log(const std::string& message) {
	std::cout << message << "\n";
	return;
}

/**
 * execute a program from an absolute path
 *
 * \param path absolute path to program (duh)
 * \return program return value, 1 if it does not exist or -1 on error
 */
int Pii_ExecuteProgram(const std::string& path) {
	if (pid_t child = fork()) {
		int exitcode = -1;
		waitpid(child, &exitcode, 0);

		return exitcode;
	} else {
		char* args[] = { strdup(path.c_str()), nullptr };
		execv(args[0], args); 

		// this should only be reached if we cant load the program
		std::exit(1);
	}
}

/**
 * Abort the boot process and drop the user into a recovery shell
 */
[[noreturn]]
void Pii_AbortBoot() {
	Pii_Log("Unable to complete preinitialization. You have been dropped into a minimal recovery environment. Good luck.");
	Pii_ExecuteProgram("/Windows/System32/bash.exe");
	std::exit(1);
}

int main() {
	// -- just print shit --
	Pii_Log("Starting Lindows Session Manager Subsystem");
	
	// -- dynamic linking fun --
	Pii_Log("Regenerating dynamic linker cache");
	Pii_ExecuteProgram("/Windows/System32/ldconfig.exe");

	// -- registry --
	Pii_Log("Starting Lindows Registry Subsystem");
	// TODO
	Pii_Log("Loading Lindows registry");
	// TODO
	
	// -- swap --
	Pii_Log("Creating pagefiles");
	// TODO
	
	// -- env --
	Pii_Log("Setting environment variables");
	// TODO
	
	// we are never ok
	Pii_AbortBoot();
	
	return 0;
}