# ############################################################################ #
#                                                                              #
#                                                         :::      ::::::::    #
#    test.py                                            :+:      :+:    :+:    #
#                                                     +:+ +:+         +:+      #
#    By: charles <me@cacharle.xyz>                  +#+  +:+       +#+         #
#                                                 +#+#+#+#+#+   +#+            #
#    Created: 2020/09/27 11:36:32 by charles           #+#    #+#              #
#    Updated: 2020/09/27 18:40:33 by charles          ###   ########.fr        #
#                                                                              #
# ############################################################################ #

import subprocess

import config
import test.philo as philo


class Test:
    _tests = []
    _exec_path = None

    @classmethod
    def run_all(cls, exec_path: str):
        cls._exec_path = exec_path
        for t in cls._tests:
            t.run()

    def __init__(
        self,
        philo_num:     int,
        timeout_die:   int,
        timeout_eat:   int,
        timeout_sleep: int,
        meal_num:      int = None,
        should_fail:   bool = False
    ):
        self._philo_num     = philo_num
        self._timeout_die   = timeout_die
        self._timeout_eat   = timeout_eat
        self._timeout_sleep = timeout_sleep
        self._meal_num      = meal_num
        Test._tests.append(self)

    def run(self):
        argv = [
            Test._exec_path,
            str(self._philo_num),
            str(self._timeout_die),
            str(self._timeout_eat),
            str(self._timeout_sleep)
        ]
        if self._meal_num is not None:
            argv.append(str(self._meal_num))
        process = subprocess.Popen(
            argv,
            stdout=subprocess.PIPE,
            stderr=subprocess.STDOUT
        )
        self._check_output(process.stdout)
        process.wait(timeout=config.TIMEOUT)

    def _check_output(self, stream):
        table = philo.Table(self._philo_num, self._timeout_eat)
        for line in stream:
            line = line.decode()[:-1]
            table.add_log(philo.Log(line, self._philo_num))
            table.check()