#!/usr/bin/env python3

'''
Shell scripting with python :
- https://www.freecodecamp.org/news/python-for-system-administration-tutorial
- https://github.com/ninjaaron/replacing-bash-scripting-with-python#if-the-shell-is-so-great-what-s-the-problem
- https://linuxize.com/post/python-get-change-current-working-directory



USAGE:
	ON WINDOWS:
		Via PyROS Wrapper
		.\PYROS --docker start agentScheduler -o tnc -fg
		-- docker option as FIRST parameter -> force script to use docker (Useful when you have PyROS and Docker installed locally)
		OR
		.\PYROS start agentScheduler -o tnc -fg
		To use PyROS locally
'''

import subprocess
from shutil import which
import os
import sys
from time import sleep
DEBUG = False
#DEBUG = True
# print(DEBUG)


def run(command: str):
    #print(command.split(' '))
    return subprocess.run(command.split(' '))
    #result = subprocess.run(command.split(' '), stdout=subprocess.PIPE, stderr=subprocess.PIPE)


# Guess Context (3 possibilities) :
# - NO DOCKER,
# or
# - DOCKER OUT of container,
# or
# - or DOCKER IN container

WITH_DOCKER_IS_SET = False if os.getenv('WITH_DOCKER') is None else True
# print(WITH_DOCKER_IS_SET)


# APP_FOLDER=False
# [ -d ../app/ ] && APP_FOLDER=true
APP_FOLDER = os.path.exists('../app/')

VENV = False

args = sys.argv[1:]
if args[0] == "--venv":
	VENV = True
	args.pop(0)
args = ' '.join(args)
# test if docker is installed
# [ -x "$(command -v docker)" ] && DOCKER_CMD=true
DOCKER_CMD = which('docker') is not None


# Pas utile vu qu'on va redémarrer systématiquement le container
# test if container is running
# DOCKER_CONTAINER_STARTED=false
# $DOCKER_CMD && [ $(docker ps | grep 'pyros' | wc -l) -eq 2 ] && DOCKER_CONTAINER_STARTED=true

#
# SYNTHESIS
#

# DOCKER=false
# [[ $VENV == false && $DOCKER_CMD == true ]] && DOCKER=true
DOCKER = DOCKER_CMD and not VENV

DOCKER_OUT_CONTAINER = DOCKER and not WITH_DOCKER_IS_SET
# [[ $DOCKER == false && $WITH_DOCKER_IS_SET == true ]] && DOCKER_IN_CONTAINER=true

if DEBUG:
    print(APP_FOLDER)
    print(VENV)
    print(DOCKER_CMD)
    # print(container)
    # Synthesis
    print(DOCKER)
    print(DOCKER_OUT_CONTAINER)

    print(sys.argv)
    exit(0)

# no container ? => start container first
# [ $container == false ] && cd docker/ && docker-compose up -d


# print(args)

#PYROS_CMD = "python3 pyros.py --help"
#PYROS_CMD = "python3 pyros.py $*"
PYROS_CMD = "python3 pyros.py " + args
PYROS_CMD = PYROS_CMD.rstrip()

# DOCKER_OUT_CONTAINER true ? => docker exec
# docker exec -it pyros python3 pyros.py $*
# [ $DOCKER_OUT_CONTAINER == true ] && cd docker/ && docker-compose up -d && PREFIX='docker exec -it pyros'
if DOCKER_OUT_CONTAINER:
    # cd docker/
    os.chdir('docker')
    # docker-compose up -d
    res = subprocess.run("docker-compose exec pyros python3 pyros.py",shell=True,stdout=subprocess.DEVNULL)
    if res.returncode != 0:
        run('docker-compose up -d')
        sleep(5)
    PYROS_CMD = 'docker-compose exec pyros ' + PYROS_CMD

if VENV:
    does_venv_folder_exists = os.path.exists("./venv")
    print(does_venv_folder_exists)
    print(WITH_DOCKER_IS_SET)
    if not does_venv_folder_exists and not WITH_DOCKER_IS_SET:
        print("No virtual environment available.")
        exit(0)
    path_to_bin_folder = ""
    print("\n Executing command in venv :", PYROS_CMD, "\n")
    if os.name == "posix":
        res = run(f"./venv/venv_py3_pyros/"+PYROS_CMD)
    elif os.name == "nt":
        res = run("./venv/venv_py3_pyros/Scripts/python.exe pyros.py "+ args)
    else:
        # java 
        pass
else:
    # PYROS_CMD
    print("\n Executing command :", PYROS_CMD, "\n")
    res = run(PYROS_CMD)

'''
#Print the stdout and stderr
print()
print(result.args)
print()
print(result.stdout)
print()
print(result.stderr)
'''


'''
##########################
# Script BASH equivalent #
##########################

#!/usr/bin/env bash

DEBUG=true
DEBUG=false

# test if user passed a command as parameter
#if test $# -lt 1 ; then
    #echo "Missing command, use one of the commands below"
    #python3 pyros.py --help
    #exit 
#fi

# Guess Context : 
# - NO DOCKER, 
# or
# - DOCKER OUT of container, 
# or
# - or DOCKER IN container

WITH_DOCKER_IS_SET=true
[ -z $WITH_DOCKER ] && WITH_DOCKER_IS_SET=false

APP_FOLDER=false
[ -d ../app/ ] && APP_FOLDER=true

VENV=false
[ -d ./venv/ ] && VENV=true

# test if docker is installed 
DOCKER_CMD=false
[ -x "$(command -v docker)" ] && DOCKER_CMD=true


# test if container is running
DOCKER_CONTAINER_STARTED=false
$DOCKER_CMD && [ $(docker ps | grep 'pyros' | wc -l) -eq 2 ] && DOCKER_CONTAINER_STARTED=true

#
# SYNTHESIS
#

DOCKER=false
[[ $VENV == false && $DOCKER_CMD == true ]] && DOCKER=true

DOCKER_OUT_CONTAINER=false
[[ $DOCKER == true && $WITH_DOCKER_IS_SET == false ]] && DOCKER_OUT_CONTAINER=true
#[[ $DOCKER == false && $WITH_DOCKER_IS_SET == true ]] && DOCKER_IN_CONTAINER=true
	
if $DEBUG ; then
	echo $APP_FOLDER
	echo $VENV
	echo $DOCKER_CMD
	echo $container

	# Synthesis
	echo $DOCKER
	echo $DOCKER_OUT_CONTAINER

	exit
fi


# no container ? => start container first
#[ $container == false ] && cd docker/ && docker-compose up -d

# DOCKER_OUT_CONTAINER true ? docker exec
PREFIX=''
#docker exec -it pyros python3 pyros.py $*
[ $DOCKER_OUT_CONTAINER == true ] && cd docker/ && docker-compose up -d && PREFIX='docker exec -it pyros'

echo $PREFIX
$PREFIX python3 pyros.py $*

'''