#!/bin/ash
# shellcheck shell=ash

# --- Configuration ---
. /recalbox/share/system/configs/savesync/savesync.conf

log() {
	local level="$1"
	local msg="$2"
	local timestamp=$(date '+%Y-%m-%d %H:%M:%S')
	local log_line="[$timestamp] [$level] $msg"

	if [ "$level" = "ERROR" ]; then
		mkdir -p "$(dirname "$ERROR_LOG")"
		printf "%s\n" "$log_line" >>"$ERROR_LOG"
	fi

	# FIX: Corrected port to 1883 and added -m
	mosquitto_pub -h 127.0.0.1 -p 1883 -q 0 -t "$LOG_TOPIC" -m "SaveLog=$log_line" 2>/dev/null

	[ "${DEBUG_MODE:-0}" -eq 1 ] && printf "%s\n" "$log_line"
}

sleep 2
log "INFO" "--- ES Event Daemon Started ---"

# --- Main Listener Loop ---
mosquitto_sub -h 127.0.0.1 -p 1883 -q 0 -t "$TOPIC" | while IFS="=" read -r key value; do
	# 1. Clean input
	value=$(echo "$value" | tr -d '\r')

	case "$key" in
	"SystemId") this_system_id="$value" ;;
	"GamePath")
		this_game_path="$value"
		# Replace 'roms' with 'saves' and change extension to .srm
		tmp_path="${value/roms/saves}"
		this_save_path="${tmp_path%.*}.srm"
		# Replace 'saves' with 'archives' for backup
		this_backup_path="${this_save_path/saves/archives}"
		;;
	"Action") this_action="$value" ;;
	"State")
		this_state="$value"

		if [ "$this_state" = "playing" ] && [ "$this_action" = "rungame" ]; then
			# PASS CURRENT VARS TO SUBSHELL
			(
				# We use local copies inside the subshell to be safe
				sid="$this_system_id"
				gp="$this_game_path"
				sp="$this_save_path"
				bp="$this_backup_path"

				log "INFO" "Game Started: $(basename "$gp")"
				filename=$(basename "$sp")
				remote_full="$REMOTE_BASE/$sid/$filename"

				# rclone operations...
				local_size=$(stat -c %s "$sp" 2>/dev/null || echo 0)
				remote_size=$(rclone lsjson "$remote_full" 2>/dev/null | grep -o '"Size":[0-9]*' | cut -d: -f2)
				: "${remote_size:=0}"

				if [ "$local_size" -lt "$remote_size" ]; then
					log "WARN" "Cloud save LARGER. Restoring..."
					mkdir -p "$(dirname "$bp")"
					rclone copyto "$remote_full" "$sp" --backup-dir "$(dirname "$bp")"
				else
					log "INFO" "Local save safe. Updating..."
					rclone update "$remote_full" "$sp"
				fi

				# FIX: Ensure you are sending the EXACT key the publisher is waiting for
				# If your publisher is looking for "SaveSync", change "SaveContinue" below
				mosquitto_pub -h 127.0.0.1 -p 1883 -t "$RESPONSE_TOPIC" -m "SaveSync=0"
			) &
			log "DEBUG" "Sync backgrounded."
		fi

		# Variable resets happen here, safely outside the child process
		this_system_id=""
		this_game_path=""
		this_save_path=""
		this_action=""
		this_backup_path=""
		;;
	esac
done