#!/bin/ash
# shellcheck shell=ash

# -- Load Configs ---
. /recalbox/share/system/configs/savesync/savesync.conf

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

    # Handle local emergency error log immediately
    if [ "$level" = "ERROR" ]; then
        mkdir -p "$(dirname "$ERROR_LOG")"
        printf "%s\n" "$log_line" >> "$ERROR_LOG"
    fi

    # Dispatch to the Central Logging Daemon via MQTT
    # We use -q 0 (fire and forget) so the game script doesn't wait
    mosquitto_pub -h 127.0.0.1 -p 1833 -q 0 -t "$LOG_TOPIC" -m "SaveLog=$log_line" 2>/dev/null

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

# --- Exit function ---
call_exit() {
	value="$1"
	if [ "$value" -eq 0 ]; then
		log "WARN" "pub_event exited normally"
	else
		log "INFO" "pub_event exited with warnings"
	fi
	exit "$value"
}

eventfile="/tmp/es_state.inf"

# 1. Check if the file exists and is not empty
if [ ! -s "$eventfile" ]; then
    log "ERROR" "$eventfile is missing or empty."
    exit 1
fi

# 2. Read the payload safely
PAYLOAD=$(cat "$eventfile")

# Step 3: Connection Check
for i in $(seq 5); do
    log "INFO" "Waiting on rclone endpoint... $i"
    if nc -z "$RCLONE_ENDPOINT" "$RCLONE_PORT"; then
        connect_success=1
        break
    fi
    sleep 0.5
done

# Step 4: Publish
# Added -m flag and removed the [ "$( ... )" ] wrapper
if mosquitto_pub -h 127.0.0.1 -p 1883 -t "$TOPIC" -m "$PAYLOAD"; then
    log "INFO" "Successfully published event."
else
    log "ERROR" "Failed to connect to mosquitto broker."
    exit 1
fi

# 5. Wait for response from daemon
log "INFO" "Waiting for sync confirmation on $RESPONSE_TOPIC..."

# Start a subshell that kills the subscriber after 10 seconds if no message arrives
( sleep 10; mosquitto_pub -h 127.0.0.1 -t "$RESPONSE_TOPIC" -m "SaveSync=timeout" ) &
TIMEOUT_PID=$!

# -C 1 ensures we exit after receiving either the real response or the timeout message
mosquitto_sub -h 127.0.0.1 -p 1883 -t "$RESPONSE_TOPIC" -C 1 | while IFS="=" read -r key value
do
    # Kill the background sleep timer since we got a message
    kill "$TIMEOUT_PID" 2>/dev/null
    
    case "$key" in
        "SaveSync") 
            if [ "$value" = "timeout" ]; then
                log "ERROR" "Sync timed out! Daemon might be down."
                call_exit 1
            else
                log "INFO" "Sync confirmed with status: $value"
                call_exit "$value"
            fi
            ;;
    esac
done