#!/usr/bin/env python3
import pycriu
import sys
import os
import subprocess

find = subprocess.Popen(
    ['find', 'test/dump/', '-size', '+0', '-name', '*.img'],
    stdout=subprocess.PIPE)

test_pass = True


def recode_and_check(imgf, o_img, pretty):
    try:
        pb = pycriu.images.loads(o_img, pretty)
    except pycriu.images.MagicException as me:
        print("%s magic %x error" % (imgf, me.magic))
        return False
    except Exception as e:
        print("%s %sdecode fails: %s" % (imgf, pretty and 'pretty ' or '', e))
        return False

    try:
        r_img = pycriu.images.dumps(pb)
    except Exception as e:
        r_img = pycriu.images.dumps(pb)
        print("%s %s encode fails: %s" % (imgf, pretty and 'pretty ' or '', e))
        return False

    if o_img != r_img:
        print("%s %s recode mismatch" % (imgf, pretty and 'pretty ' or ''))
        return False

    return True


for imgf in find.stdout.readlines():
    imgf = imgf.strip()
    imgf_b = os.path.basename(imgf)

    if imgf_b.startswith(b'pages-'):
        continue
    if imgf_b.startswith(b'iptables-'):
        continue
    if imgf_b.startswith(b'ip6tables-'):
        continue
    if imgf_b.startswith(b'nftables-'):
        continue
    if imgf_b.startswith(b'route-'):
        continue
    if imgf_b.startswith(b'route6-'):
        continue
    if imgf_b.startswith(b'ifaddr-'):
        continue
    if imgf_b.startswith(b'tmpfs-'):
        continue
    if imgf_b.startswith(b'netns-ct-'):
        continue
    if imgf_b.startswith(b'netns-exp-'):
        continue
    if imgf_b.startswith(b'rule-'):
        continue

    o_img = open(imgf.decode(), "rb").read()
    if not recode_and_check(imgf, o_img, False):
        test_pass = False
    if not recode_and_check(imgf, o_img, True):
        test_pass = False

find.wait()

if not test_pass:
    print("FAIL")
    sys.exit(1)

print("PASS")