echo "===TEST:memory==="

# 读取温度（sensors 不可用时输出空）
read_temp() {
	sensors 2>/dev/null | grep -oP '\+?\d+(\.\d+)?(?=°C)' | head -1
}

# 后台采样内存使用率 + 温度
SAMPLE_LOG=/tmp/auto-check-memory-sample.log
: > "$SAMPLE_LOG"
(
	while true; do
		TS=$(date +%H:%M:%S)
		MEM_TOTAL=$(awk '/^MemTotal:/{print $2}' /proc/meminfo)
		MEM_AVAIL=$(awk '/^MemAvailable:/{print $2}' /proc/meminfo)
		if [ -z "$MEM_AVAIL" ] || [ "$MEM_AVAIL" = "0" ]; then
			MEM_AVAIL=$(awk '/^MemFree:/{print $2}' /proc/meminfo)
		fi
		MEM_PCT=$(awk -v t="$MEM_TOTAL" -v a="$MEM_AVAIL" 'BEGIN{if(t>0) printf "%.1f", (t-a)/t*100}')
		TEMP=$(read_temp)
		echo "${TS},${MEM_PCT},${TEMP}" >> "$SAMPLE_LOG"
		sleep "${AUTOCHECK_SAMPLE_INTERVAL:-2}"
	done
) &
SAMPLE_PID=$!

START_TIME=$(date +%s%N)
set +e
OUTPUT=$(stress-ng --vm "${AUTOCHECK_THREADS:-4}" --vm-bytes "${AUTOCHECK_MEM_MB:-256}M" --vm-method all --timeout "${AUTOCHECK_DURATION:-30}s" --temp-path /tmp --metrics-brief 2>&1)
EXIT_CODE=$?
set -e
END_TIME=$(date +%s%N)

kill $SAMPLE_PID 2>/dev/null || true
wait $SAMPLE_PID 2>/dev/null || true

DURATION_MS=$(( (END_TIME - START_TIME) / 1000000 ))
if [ "$EXIT_CODE" -eq 0 ]; then echo 'status:pass'; else echo 'status:fail'; fi
echo "duration:${DURATION_MS}ms"

# 跑分：各 stressor 的 bogo ops/s 之和
SCORE=$(echo "$OUTPUT" | awk '
/^stress-ng:/ && ($4=="cpu" || $4=="vm" || $4=="iomix" || $4=="memrate") {
	v=$(NF-1)+0; if (v>0) s+=v
}
END { printf "%.1f", s+0 }')
echo "score:${SCORE}"

# 关键指标
MAX_MEM=$(awk -F',' '$2!="" && $2+0>m {m=$2} END{printf "%.1f", m+0}' "$SAMPLE_LOG")
echo "metric:mem_used_pct=${MAX_MEM}"
MAX_TEMP=$(awk -F',' '$3!="" && $3+0>m {m=$3} END{printf "%.1f", m+0}' "$SAMPLE_LOG")
HAS_TEMP=$(awk -F',' '$3!="" && $3+0>0{f=1} END{print f+0}' "$SAMPLE_LOG")
if [ "$HAS_TEMP" = "1" ]; then echo "metric:max_temp=${MAX_TEMP}"; fi

echo "output:${OUTPUT}"

# 采样数据（首行表头）
echo "===SAMPLES==="
echo "time,mem_used_pct,temp"
cat "$SAMPLE_LOG"
echo "===END_SAMPLES==="

echo ''