#!/bin/bash

# WildlifeSystems
#
# This script is part of the WildlifeSystems project. For further information
# please refer to https://docs.wildlife.systems, or for more information on
# the project itself, please refer to https://wildlife.systems.

# Return codes
#
# Further information on WildlifeSystems standard reurn codes can be found
# at https://docs.wildlife.systems/return-codes.html
# 0 - Success
# 1 - Already running
# 11 - Incorrect filename pattern


#Check if this script already running
if [[ "$(pgrep -c ws-run-sensors)" -gt 1 ]]; then
  echo "ws-run-sensors already running. Exiting."
  exit 1
fi

trap "echo 'Terminating ws-run-sensors...'; exit 0" SIGINT SIGTERM

echo "Starting ws-run-sensors..."

#Config
CONFIG_FILE="/etc/ws/sensors.conf"
if [[ ! -f "$CONFIG_FILE" || ! -r "$CONFIG_FILE" ]]; then
  echo "Error: Config file '$CONFIG_FILE' not found or not readable."
  exit 2
fi
CONFIG=$(cat "$CONFIG_FILE")

#Check config exists
if [[ -z "$CONFIG" ]]; then
  echo "No config file found."
  exit 2
fi

function onOff {
  pi-pwr off "$(echo "$CONFIG" | jq -r '.init .off[]' | tr '\n' ' ')"
  pi-pwr on "$(echo "$CONFIG" | jq -r '.init .on[]' | tr '\n' ' ')"
}

while true;
do
    SENSOR_DATA=""
	N=$(echo "$CONFIG" | jq -r ".run | length")
	I=0
	while [ $I  -lt $N ];
	do
		pi-pwr off $(echo "$CONFIG" | jq -r ".run[$I] .off[]" | tr '\n' ' ')
  		pi-pwr on $(echo "$CONFIG" | jq -r ".run[$I] .on[]" | tr '\n' ' ')
		ACTION=`echo $CONFIG | jq -r ".run[$I] .action"`
		echo $ACTION
		#ws-heartbeat $ACTION
        	case  $ACTION in
				sensor_read)
					SENSOR=$(echo "$CONFIG" | jq -r ".run[$I] .sensor")
					SENSOR_TYPE=$(echo "$CONFIG" | jq -r ".run[$I] .sensor_type")

					SENSOR_DATA=$(sr "$SENSOR" "$SENSOR_TYPE")
echo $SENSOR_DATA
					;;
				sleep)
					DURATION=$(echo "$CONFIG" | jq -r ".run[$I] .duration")
					sleep "$DURATION"
					;;
				upload-delete)
					METHOD=`echo $CONFIG| jq -r ".run[$I] .method"`
					case $METHOD in
						file)
							FILE=$(echo $CONFIG | jq -r ".run[$I] .file")
							if [[ -z "$FILE" ]]; then
							  echo "Error: File path is not defined in the configuration."
							  continue
							fi
							if [[ -z "$SENSOR_DATA" ]]; then
							  echo "Warning: No sensor data to write to $FILE."
							  continue
							fi
							echo "Writing to file: $FILE"
							echo "$SENSOR_DATA" >> $FILE
							;;
						script)
							SCRIPT=`echo $CONFIG| jq -r ".run[$I] .script"`
							if [[ ! -x "$SCRIPT" ]]; then
								echo "Script $SCRIPT not executable."
							fi
						    # Pass SENSOR_DATA to the script
							if [[ -n "$SENSOR_DATA" ]]; then
								$SCRIPT "$SENSOR_DATA" &
							else
								echo "No sensor data to pass to script."
							fi
							;;
					esac
					;;
				*)
					echo "Unknown action: $ACTION" 1>&2
					;;
			esac

		I=$(($I + 1))
		#ws-indicate heartbeat
	onOff
	done
done
