#include "iso.h"

#include "drivers/ide/ide.h"

#include "lib/print.h"
#include "lib/memory.h"

uint8_t sector_buf[2048];
void read_iso(ide_device_t* dev) {
    kprintf("Reading ISO Filesystem from CDROM Disk\n");

    ide_read_blks(dev, 16, 1, sector_buf);
    if (sector_buf[0] != 1) {
        kprintf("Couldn't find PVD\n");
        return;
    }

    iso_pvd_t pvd = *(iso_pvd_t*)sector_buf;

    char pvd_identifier[6];
    memcpy(pvd.header.identifier, pvd_identifier, 5);
    pvd_identifier[5] = 0;

    if (strcmp(pvd_identifier, "CD001") > 0) {
        kprintf("Invalid PVD identifier\n");
        return;
    }

    char system_identifier[33];
    memcpy(&pvd.sys_ident[0], system_identifier, 32);
    system_identifier[32] = 0;
    if (strlen(system_identifier) > 0) {
        kprintf("System Identifier: %s\n", system_identifier);
    }
    
    char volume_identifier[33];
    memcpy(&pvd.volume_ident[0], volume_identifier, 32);
    volume_identifier[32] = 0;
    kprintf("Volume Identifier: %s\n", volume_identifier);
}