#include <zinnia/console.h>
#include <zinnia/init.h>
#include <zinnia/print.h>
#include <zinnia/spin.h>

static struct console* registered = nullptr;
static struct spinlock console_lock;

void console_write(const char* buf, size_t len) {
    spin_lock(&console_lock);
    for (struct console* con = registered; con; con = con->next)
        con->write(con, buf, len);
    spin_unlock(&console_lock);
}

bool console_register(struct console* con) {
    if (!con->init(con))
        return false;

    spin_lock(&console_lock);
    con->next = registered;
    registered = con;
    spin_unlock(&console_lock);

    log("console: Registered console \"%s\"\n", con->name);
    return true;
}

void console_unregister(struct console* con) {
    spin_lock(&console_lock);
    for (struct console** link = &registered; *link; link = &(*link)->next) {
        if (*link == con) {
            *link = con->next;
            break;
        }
    }
    spin_unlock(&console_lock);
}

[[__init]]
static void console_stage_init(struct boot_info*) {
    kprintf("\ec");
}
INIT_TASK(console_stage, "core.console", console_stage_init);