#include "disk.h"
#include "detection/internal.h"

void ffDetectDisksImpl(FFDiskResult* disks);

static int compareDisks(const void* disk1, const void* disk2)
{
    return ffStrbufCompAlphabetically(&((const FFDisk*) disk1)->mountpoint, &((const FFDisk*) disk2)->mountpoint);
}

const FFDiskResult* ffDetectDisks()
{
    FF_DETECTION_INTERNAL_GUARD(FFDiskResult,
        ffStrbufInit(&result.error);
        ffListInitA(&result.disks, sizeof(FFDisk), 4);

        ffDetectDisksImpl(&result);

        if(result.disks.length == 0 && result.error.length == 0)
            ffStrbufAppendS(&result.error, "No disks found");
        else
        {
            //We need to sort the disks, so that we can detect, which disk a path resides on
            // For example for /boot/efi/bootmgr we need to check /boot/efi before /boot
            //Note that we sort alphabetically here for a better ordering when printing the list,
            // so the check must be done in reverse order
            ffListSort(&result.disks, compareDisks);
            FF_LIST_FOR_EACH(FFDisk, disk, result.disks)
            {
                if(disk->bytesTotal == 0)
                    disk->type |= FF_DISK_TYPE_UNKNOWN_BIT;
            }
        }
    );
}