#!/bin/bash
VERSION="1.0.0"

#0################### IN1CLICK for Concurrency Count #####################
#
# DISCLAIMER:
# This bash script was first published for PBXact and FreePBX on 1st July
# 2025. Contents are provided as-is without warranty of any kind, express
# or implied. You may modify, distribute, and use this script; 20tele.com
# accepts no responsibility for any damage or issues arising from its use.
#
# PURPOSE:
# IN1CLICK is a streamline, automated installer script created to quickly
# and reliably install and launch custom scripts developed by 20tele.com.
# The installer automates the setup for use without manual configuration.
#
# ${RED}WARNING:${NC}
# Please test it thoroughly in a controlled environment before deploying.
#
# VERSION:
# ${VERSION}
#
# PUBLISHED:
# 1st July 2025
#
# LICENSE:
# GNU General Public License v3.0
#
#1#######################################################################

set -e

LBLUE='\033[1;94m'
NC='\033[0m'

created_mycfn=0

cleanup() {
  echo "An error occurred during installation."
  if [ "$created_mycfn" -eq 1 ]; then
    echo "Removing created /root/.my.cnf"
    rm -f /root/.my.cnf
  fi
  echo "Please install manually or contact support at support@20tele.com."
  exit 1
}

trap 'cleanup' ERR

echo -e "${LBLUE}Hello. Thanks for using IN1CLICK by 20tele.com${NC}"
echo
sleep 1

echo "Checking Asterisk version..."
astver_full=$(asterisk -V 2>/dev/null || echo "unknown")
echo "Full Asterisk version string: $astver_full"
sleep 1

# Extract first number found (major version)
astver_major=$(echo "$astver_full" | grep -oP '\d+' | head -1)

echo "Extracted major version: '$astver_major'"
sleep 1

if [[ "$astver_major" =~ ^(18|20|22)$ ]]; then
  echo "Asterisk version supported."
else
  echo "WARNING: Asterisk version $astver_full is not supported. Supported versions: 18, 20, 22."
  read -rp "Proceed anyway? (y/N): " proceed
  proceed=${proceed,,}
  if [[ "$proceed" != "y" ]]; then
  echo
    echo "Installation aborted due to unsupported Asterisk version."
    echo
    trap - ERR
    exit 1
  fi
fi

sleep 1
echo
echo "Checking if Concurrency Count is already installed..."
sleep 1
if [ -f /usr/local/bin/concurrency-count ]; then
  echo "Concurrency Count is already installed."
  read -rp "Overwrite with the latest version? (y/N): " confirm
  confirm=${confirm,,}
  if [[ "$confirm" != "y" ]]; then
  echo
    echo "Installation aborted by user."
    echo
    trap - ERR
    exit 0
  fi
else
  echo "Concurrency Count is not installed. Proceeding with installation..."
fi
sleep 1

echo
echo "Checking for PHP..."
sleep 1
if ! command -v php &> /dev/null; then
  echo "PHP is not installed or not found in PATH."
  trap - ERR
  exit 1
fi
echo "PHP found."
sleep 1

echo
echo "Checking for existing /root/.my.cnf..."
sleep 1
if [ -f /root/.my.cnf ]; then
  echo "/root/.my.cnf exists, skipping creation."
else
  echo "Creating /root/.my.cnf from FreePBX config (without database line)..."
  php -r 'include "/etc/freepbx.conf"; echo "[client]\nuser=" . $amp_conf["AMPDBUSER"] . "\npassword=" . $amp_conf["AMPDBPASS"] . "\nhost=" . $amp_conf["AMPDBHOST"] . "\n";' > /root/.my.cnf
  chmod 600 /root/.my.cnf
  created_mycfn=1
  echo "/root/.my.cnf created and secured."
fi
sleep 1

echo
echo "Checking for wget..."
sleep 1
if ! command -v wget &> /dev/null; then
  echo "wget not found. Installing..."
  if command -v yum &> /dev/null; then
    yum install -y wget
  elif command -v apt &> /dev/null; then
    apt update && apt install -y wget
  else
    echo "No supported package manager found."
    trap - ERR
    exit 1
  fi
  echo "wget installed."
else
  echo "wget is already installed."
fi
sleep 1

echo
echo "Downloading concurrency-count script..."
wget -O /usr/local/bin/concurrency-count https://raw.githubusercontent.com/20telecom/concurrency-count/main/concurrency-count
if [ ! -s /usr/local/bin/concurrency-count ]; then
  echo "Download failed or file is empty."
  trap - ERR
  exit 1
fi

echo "Installation complete. Please wait..."
sleep 3

echo
echo "Setting execute permissions on concurrency-count script..."
chmod 755 /usr/local/bin/concurrency-count
sleep 1

echo
echo "Removing IN1CLICK by 20tele.com..."
rm -- "$0"

echo
echo "Launching Concurrency Count..."
trap - ERR
/usr/local/bin/concurrency-count

exit 0