#!/usr/bin/env bash

REQUIRED_VARIABLES=(PROJECT_NAME SCRIPT_PATH IMAGE_NAME IMAGE_VERSION)

for _var in ${REQUIRED_VARIABLES[@]}; do
    if [ -z ${!_var+x} ]; then
        echo "Missing definition of variable: ${_var}"
        exit 2
    fi
done

source ${SCRIPT_PATH}/../settings.shinc
source ${SCRIPT_PATH}/../functions.shinc

#
#	Commonly used functions
#

stop() {
	__msg "Stopping container... " 0 no

	STATUS=$(docker stop ${PROJECT_NAME} > /dev/null 2>&1)
	if [[ $? -ne 0 ]]; then
		__err "${STATUS}"
		return 1
	else
		__success "[ok]"
	fi

	return 0
}

start() {
	__msg "Starting container... " 0 no
	STATUS=$(docker start ${PROJECT_NAME} 2>&1)
	if [[ $? -ne 0 ]]; then
		__err "${STATUS}"
		return 1
	else
		__success "[ok]"
	fi

	return 0
}

remove() {
	stop

	__msg "Removing container... " 0 no
	STATUS=$(docker rm ${PROJECT_NAME} 2>&1)
	if [[ $? -ne 0 ]]; then
		__err "${STATUS}"
		return 1
	else
		__success "[ok]"
	fi

	return 0
}


logs() {
	docker logs "$@" ${PROJECT_NAME}
	return $?
}

exec() {
	# Test if bash is available
	docker exec -it ${PROJECT_NAME} /bin/bash -c "echo 'test'" > /dev/null 2>&1

	if [[ $? -eq 0 ]]; then
		docker exec -it ${PROJECT_NAME} /bin/bash
		return $?
	fi

	# Test if bash is available
	docker exec -it ${PROJECT_NAME} /bin/sh -c "echo 'test'" > /dev/null 2>&1
	if [[ $? -eq 0 ]]; then
		docker exec -it ${PROJECT_NAME} /bin/sh

		return $?
	fi

	__err "Could not find either sh or bash in the container"
	return 1
}

help() {
	echo "┌──────────────────────────────────────────────────────────────┐"
	echo "│                      Available commands                      │"
	echo "└──────────────────────────────────────────────────────────────┘"
	echo -e -n "$LOG"
	echo "   > init   - Initializes the environment"
	echo "   > start  - Start containers"
	echo "   > stop   - Stops containers"
	echo "   > remove - Removes traces of the container"
	echo "   > logs   - Shows logs"
	echo "   > exec   - Enters the containers tty"
	echo "   > help   - Display this help"
	echo -e -n "${NORMAL}"
	echo "└──────────────────────────────────────────────────────────────┘"

	return 0
}