#![allow(clippy::empty_loop)]

// use crate::scheduler;

use {
    crate::{
        arch::{init, sloop},
        boot_conf,
        boot_conf::BootConfig,
        capabilities::FileAccess,
        experiments::{
            info::master,
            systeminfo::{KERNEL_VERSION, RELEASE_TYPE},
        },
        file::{File, PathRep},
        relib::network::socket::SimpleSock,
        relib::network::socket::Socket,
        scheduler::SCHEDULER,
    },
    alloc::{
        string::{String, ToString},
        vec,
    },
    core::sync::atomic::{AtomicU64, Ordering::*},
    lazy_static::lazy_static,
    log::*,
};

#[no_mangle]
#[allow(unconditional_recursion)]
pub extern "C" fn stack_overflow() -> u8 {
    stack_overflow();
    // meme number
    69 // NOTE: Any specific reason for this number aside from memes?
}

lazy_static! {
    pub static ref TICK: AtomicU64 = AtomicU64::new(0);
    pub static ref BOOT_CONF: BootConfig = boot_conf::BootConfig::new();
}

/// The main entry point of the kernel
#[no_mangle]
pub fn kernel_main() -> ! {
    init::init();
    log::set_max_level(BOOT_CONF.log_level());

    use crate::scheduler::Priority;
    let mut scheduler = SCHEDULER.lock();

    use Priority::*;

    let mut process_1 = scheduler.new_process(High);
    process_1.capabilities.files = FileAccess::Some(vec![PathRep {
        location: FileLocations::Home,
        file_name: "test".to_string(),
    }]);
    scheduler.add_process(process_1);
    for ref_process in &scheduler.list {
        trace!("{:?}", ref_process);
    }
    drop(scheduler);

    use crate::proto_filetable::contain::FILE_TABLE;
    use crate::proto_filetable::file::FileLocations;

    let mut file_table = FILE_TABLE.lock();
    let mut new_file = File::new(FileLocations::Bin, "test".to_string(), "txt".to_string());

    new_file.write_bytes(b"Hello, world!");
    file_table.add_file("test", new_file);

    let file = file_table.get_file("test");

    match file {
        Some(file) => {
            let file_bytes = &file.data_pointer;
            let file_string = String::from_utf8(file_bytes.to_vec()).unwrap();
            info!("{}", file_string);
        }
        None => {
            info!("File not found");
        }
    }

    crate::tests::screen_writer_test();

    use crate::wasm::WasmProgram;
    let ret = WasmProgram::new_from_bytes(&[0x00, 0x61, 0x73, 0x6d, 0x01, 0x00, 0x00, 0x00]);
    trace!("Binary Valid: {:?}", ret.validate_header());

    sloop()
}

/// called by arch specific timers to tick up all kernel related functions
pub fn tick() {
    let mut data = TICK.load(Relaxed);
    data += 1;

    crate::kernel_state::KERNEL_STATE.lock().update_state();

    let mut scheduler = SCHEDULER.lock();
    scheduler.bump_exec();

    TICK.store(data, Relaxed)
}

pub fn cpu_socket_startup() {
    let mut cpu_info_socket = SimpleSock::new();
    cpu_info_socket.register_protocol("CPU_INFO".to_string());

    let x = master().unwrap();
    let _xyz = x.brand_string().unwrap();
}

pub fn log_version_data() {
    info!("{} v{}", RELEASE_TYPE, KERNEL_VERSION);
    info!(
        "Brand String: {:?}",
        master().unwrap().brand_string().unwrap()
    );
}