#!/usr/bin/env python3

import subprocess
import glob
import time
import sys
import platform
from colorama import init, Fore, Style
from run import run_clvm

init()
ret = 0

for fn in glob.glob("programs/large-atom-*.hex.invalid"):

    try:
        run_clvm(fn)
        ret = 1
        print("FAILED: expected parse failure")
    except Exception as e:
        print("expected failure: %s" % e)


for fn in glob.glob("programs/*.clvm"):

    hexname = fn[:-4] + "hex"
    with open(hexname, "w+") as out:
        proc = subprocess.Popen(["opc", fn], stdout=out)
        proc.wait()

for fn in glob.glob("programs/*.env"):
    hexenv = fn + "hex"
    with open(hexenv, "w+") as out:
        proc = subprocess.Popen(["opc", fn], stdout=out)
        proc.wait()

for hexname in sorted(glob.glob("programs/*.hex")):

    hexenv = hexname[:-3] + "envhex"

    #    command = ['brun', '-m', '11000000000', '-c', '--backend=rust', '--quiet', '--time', '--hex', hexname, hexenv]
    command = ["./run.py", hexname, hexenv]

    # prepend the size command, to measure RSS
    if platform.system() == "Darwin":
        command = ["/usr/bin/time", "-l"] + command
    if platform.system() == "Linux":
        command = ["/usr/bin/time"] + command

    print(" ".join(command))
    start = time.perf_counter()
    completed_process = subprocess.run(
        command, stderr=subprocess.PIPE, stdout=subprocess.PIPE
    )
    output = completed_process.stderr.decode("UTF-8")
    output += completed_process.stdout.decode("UTF-8")
    end = time.perf_counter()

    if "FAIL: " not in output or (
        "cost exceeded" not in output and "too many pairs" not in output
    ):
        ret += 1
        print(
            Fore.RED
            + "\nTEST FAILURE: expected cost to be exceeded\n"
            + Style.RESET_ALL
        )
        print(output)

    print(Fore.YELLOW + ("  Runtime: %0.2f s" % (end - start)) + Style.RESET_ALL)

    # parse RSS (MacOS and Linux only)
    size = None
    if platform.system() == "Darwin":
        for l in output.split("\n"):
            if "maximum resident set size" not in l:
                continue
            val, key = l.strip().split("  ", 1)
            if key == "maximum resident set size":
                size = int(val) / 1024 / 1024
    if platform.system() == "Linux":
        # example output:
        # 10.49user 0.32system 0:10.84elapsed 99%CPU (0avgtext+0avgdata 189920maxresident)k
        for l in output.split("\n"):
            if "maxresident)k" not in l:
                continue
            size = int(l.split("maxresident)k")[0].split(" ")[-1]) / 1024
    if size is not None:
        print(Fore.YELLOW + f"  Resident Size: {size:.0f} MiB" + Style.RESET_ALL)

        if size > 2300:
            ret += 1
            print(
                Fore.RED + "\nTEST FAILURE: Max memory use exceeded\n" + Style.RESET_ALL
            )

    # cost 10923314721 roughly corresponds to 11 seconds
    if end - start > 11:
        ret += 1
        print(
            Fore.RED
            + "\nTEST FAILURE: Time exceeded: %f\n" % (end - start)
            + Style.RESET_ALL
        )

if ret:
    print(Fore.RED + f"\n   There were {ret} failures!\n" + Style.RESET_ALL)

sys.exit(ret)