#!/bin/bash

##################################
# This script is created by D1N0 #
#   for free users who want to   #
#    get notifications by SMS    #
##################################

################
#INITIALISATION#
################

mode='command'    # Variables
USER=**********
PASS=**********
cols=`tput cols`
lines=`tput lines`
color=0
bold=0

echap() {    # Escape sequence
	if [ $mode = 'interactive' ]; then
		tput rmcup || clear
	fi
	exit 0
}

trap "echap" SIGINT    # Ctrl+C redirection

sendSMS() {    # SMS sending process
	envoi=$(curl -i --insecure "[smsapi.free-mobile.fr]; 2>&1)
	retour_HTTP=$(echo "$envoi" | awk '/HTTP/ {print $2}')
	case $retour_HTTP  in
		200) echo "The message is successfully sended.";;
		400) echo "No message specified; please enter a message.";;
		402) echo "Too much SMS were sended in the same time; please try later.";;
		403) echo "The SMS notification's service isn't enabled; please enable it.";;
		500) echo "Server error; please try later."
	esac
}

######
#MAIN#
######

while [[ $color = 0 && $bold = 0 ]]; do    # Color choice
	color=$((RANDOM%8))
	tput setaf $color
	bold=$((RANDOM%2))
	if [ $bold = 1 ]; then
		tput bold
	fi
done

if [ $# -ge 1 ]; then    # Command mode
	if [ $# = 1 ] && [ $1 = '-h' ]; then
		echo 'Syntax: ./sms.sh [MESSAGE] : send [MESSAGE] by SMS'
		echo '        ./sms.sh -h        : display this help'
	else
		MSG=$*
		sendSMS
	fi
else    # Interface mode
	mode='interactive'
	tput smcup
	clear
	tput cup $((($lines/2)-6)) 0
	figlet -cf big -w $cols sms
	tput cup $((($lines/2)+4)) $(($cols/4))
	read MSG
	mode='command'
	tput rmcup || clear
	sendSMS
fi
echap