#!/bin/bash
#==============================================================================
# Copyright and license info is available in the LICENSE file included with
# the Server Deployment Package (SDP), and also available online:
# https://swarm.workshop.perforce.com/projects/perforce-software-sdp/view/main/LICENSE
#------------------------------------------------------------------------------

# Helix Proxy base init script

# Do nothing unless $SDP_INSTANCE is defined.
export SDP_INSTANCE=${1:-Unset}

if [[ $SDP_INSTANCE == Unset ]]; then
   echo -e "\nError: The SDP_INSTANCE is not defined.\n."
   exit 1
fi

# Load SDP controlled shell environment.
source /p4/common/bin/p4_vars "$SDP_INSTANCE"
if [[ $? -ne 0 ]]; then
   echo -e "\nError: Failed to load SDP environment for instance $SDP_INSTANCE.\n"
   exit 1
fi

source $P4CBIN/ps_functions.sh
if [[ $? -ne 0 ]]; then
   echo -e "\nError: Failed to load SDP ps_functions.sh lib.\n"
   exit 1
fi

if [[ $(id -u) -eq 0 ]]; then
   exec su - $OSUSER -c "$0 $*"
elif [[ $(id -u -n) != $OSUSER ]]; then
   echo "$0 can only be run by root or $OSUSER"
   exit 1
fi

if [[ ! -x $P4PBIN ]]; then
   echo -e "\nError: $P4PBIN is not executable."
   exit 2;
fi

# Add and override values from p4_vars
export P4LOG=$LOGS/p4p.log
export P4P_FLAGS="-d -v proxy.monitor.level=$PROXY_MON_LEVEL -p $PROXY_PORT -r $P4PCACHE -t $PROXY_TARGET -u $P4SERVICEUSER -e 3072 -L $P4LOG"

case "${2:-status}" in
   start)
      echo "Starting ${P4PBIN} ${P4P_FLAGS}"
      ${P4PBIN} ${P4P_FLAGS}
   ;;

   status)
      p4p_pids=$(get_pids "$P4PBIN")
      if [[ -n "$p4p_pids" ]]; then
         echo "${P4PBIN} is running as pids: $p4p_pids."
         exit 0
      else
         echo "${P4PBIN} is NOT running."
         exit 1
      fi
   ;;

   stop)
      p4p_pids=$(get_pids "$P4PBIN")

      if [[ -n "$p4p_pids" ]]; then
         while [[ -n "$p4p_pids" ]]; do
            echo "Shutting down ${P4PBIN} pids: $p4p_pids."
            kill $p4p_pids 2>&1 | $GREP -v -i "No such"
            sleep 1
            p4p_pids=$(get_pids "$P4PBIN")
         done
         echo "${P4PBIN} stopped."
         exit 0
      else
         echo "${P4PBIN} was NOT running."
         exit 1
      fi
   ;;
   restart)
      $0 $SDP_INSTANCE stop
      $0 $SDP_INSTANCE start
   ;;
   *)
      echo -e "\nUsage: $0 SDP_INSTANCE {start|stop|status|restart}\n"
      exit 1
   ;;
esac