#include "startup.h"

#include "../arch/acpi.h"
#include "../arch/apic.h"
#include "../arch/core.h"
#include "../arch/idt.h"
#include "../arch/pic.h"
#include "../compiler/libc.h"
#include "../debug/output.h"
#include "../interrupt/handlers.h"

/*! \brief The first processor is the Bootstrap Processor (BSP)
 */
static bool isBootstrapProcessor = true;

extern "C" [[noreturn]] void kernel_init() {
  if (isBootstrapProcessor) {
    isBootstrapProcessor = false;
    // Setup and load Interrupt Description Table (IDT)
    initInterruptHandlers();

    // Initialize PICs
    PIC::initialize();

    // Call global constructors
    CSU::initializer();

    // Initialize ACPI
    if (!ACPI::init()) {
      DBG_VERBOSE << "No ACPI!";
      Core::die();
    }
    // Initialize APIC (using ACPI)
    if (!APIC::init()) {
      DBG_VERBOSE << "APIC Initialization failed";
      Core::die();
    }

    // Initialize the Bootstrap Processor
    Core::init();

    // Go to main function
    main();

    // Exit CPU
    DBG_VERBOSE << "CPU core " << Core::getID() << " (BSP) shutdown." << endl;
    Core::exit();
  } else {
    // Load Interrupt Description Table (IDT)
    IDT::load();

    // Initialize this application processor
    Core::init();

    // And call the AP main
    main_ap();

    // Exit CPU
    DBG_VERBOSE << "CPU core " << Core::getID() << " (AP) shutdown." << endl;
    Core::exit();
  }

  // Only on last core
  if (Core::countOnline() == 1) {
    // Call global destructors
    CSU::finalizer();
  }

  // wait forever
  while (true) {
    Core::die();
  }
}