#![no_std]
#![no_main]
#![feature(abi_x86_interrupt)]

extern crate alloc;

use limine_requests::{BASE_REVISION, FRAME_BUFFER_REQUEST};
use crate::{cpu_local_data::get_local, guarded_stack::{GuardedStack, NORMAL_STACK_SIZE, StackId, StackType}, limine_requests::MEMORY_MAP_REQUEST, init::init_bsp};

mod limine_requests;
mod rgb_pixel_info;
mod frame_buffer_info;
mod frame_buffer_embedded_graphics;
mod logger;
mod write_with_cr;
mod panic_handler;
mod hlt_loop;
mod memory;
mod hhdm_offset;
mod translate_addr;
mod cpu_local_data;
mod gdt;
mod idt;
mod guarded_stack;
mod x86_64_consts;
mod call_with_rsp;
mod acpi;
mod spcr;
mod apic;
mod interrupt_vector;
mod nmi_handler_states;
mod run_program_0;
mod elf_segment_flags;
mod elf_segment_type;
mod enter_user_mode;
mod syscall_handler;
mod init;
mod fs;
mod port_io;

#[unsafe(no_mangle)]
unsafe extern "C" fn entry_point_bsp() -> ! {
    // All limine requests must also be referenced in a called function,
    // otherwise they may be removed by the linker.
    assert!(BASE_REVISION.is_supported());

    let frame_buffer_response = FRAME_BUFFER_REQUEST.response().unwrap();
    logger::init(frame_buffer_response).unwrap();
    log::info!("Hello from BSP!");

    let memory_map = MEMORY_MAP_REQUEST.response().unwrap();
    // Safety: no page tables were modified before this
    unsafe { memory::init_bsp(memory_map) };
    unsafe { cpu_local_data::init_bsp(); }

    GuardedStack::new(
        NORMAL_STACK_SIZE,
        StackId {
            _type: StackType::Normal,
            cpu_id: get_local().kernel_assigned_id
        }
    )
    .switch(init_bsp)
}