#include "types.h"
#include "io.h"
#include "idt.h"
#include "keyboard.h"
#include "strings.h"
#include "ata.h"
#include "gdt.h"
#include "paging.h"
#include "allocate.h"
#include "memory.h"
#include "process.h"
#include "global.h"
#include "datatypes/hashtable.h"
#include "terminal.h"
#include "kernel.h"
#include "filesystem/fstree.h"
#include "filesystem/fat16.h"
#include "filesystem/devfs.h"
#include "filesystem/sysfs.h"

struct KernelInformationStruct {
  PDE* pde;
  uint32_t page_directory_phys_addr;
  uint32_t page_directory_phys_offset;
  uint32_t page_bitmap_phys;
  uint32_t page_bitmap_virt;
  uint32_t stack_ptr;
  uint32_t vga_addr;
  uint32_t remainingPages;
};

int main(KernelInformationStruct kstruct) {
  init_gdt();
  
  PageDirectory kernel_pd = PageDirectory(kstruct.pde, kstruct.page_directory_phys_addr, kstruct.page_directory_phys_offset);

  kernel_pd.select();

  PageMap phys_pm(kstruct.page_bitmap_phys, kstruct.remainingPages);
  PageMap virt_pm(kstruct.page_bitmap_virt);

  Kernel kernel = Kernel(&kernel_pd, &phys_pm, &virt_pm, 0xc0000000, kstruct.stack_ptr);
  kernel.init_kernel();

  VGAModeTerminal* term = new VGAModeTerminal(kstruct.vga_addr);

  kernel.terminal = term;

  init_idt();

  term->activate();
  term->clear_screen();

  term->printf("Hello, World!\n\nWe are running XnoeOS Code in C++ now, Protected Mode has been achieved (as well as Virtual Memory / Paging!!!) and everything is working super nicely!\n\nHow wonderful!\n\nNow I just need to hope my print function works properly too~~\n");
  
  term->printf("KERNEL OK!\n");

  kernel.rootfs = new RootFSTree();
  kernel.rootfs->mount(createPathFromString("/dev"), new DevFS());
  kernel.rootfs->mount(createPathFromString("/sys"), new SysFS());
  kernel.rootfs->mount(createPathFromString("/"), new FAT16FS(kernel.rootfs->open(createPathFromString("/dev/ata"))));
  ReadWriter* init = kernel.rootfs->open(createPathFromString("/init.bin"));

  char* zero = 0;
  Process* p1 = kernel.createProcess(init, &zero, term);

  Global::tss->esp0 = (new uint8_t[8192]) + 8192;

  init_keyboard();
  enable_idt();

  while (1) asm ("hlt");
}