chart data log function

include/CanGrow_Core.h

@@ -517,6 +517,37 @@ String Str_Epoch2Date(unsigned long epochTime) {
   return dateStr;
 }
 
+char* Char_Timestamp_yyyymmdd(const unsigned long timestamp) {
+  /* char length should be 9 at the end */
+  
+  char tmp_month[3];
+  char tmp_day[3];
+  char tmp_minute[3];
+  static char tmp_timestamp[12];
+  
+  if(month(timestamp) < 10) {
+    snprintf(tmp_month, sizeof(tmp_month), "0%d", month(timestamp));
+  } else {
+    snprintf(tmp_month, sizeof(tmp_month), "%d", month(timestamp));
+  }
+  
+  if(day(timestamp) < 10) {
+    snprintf(tmp_day, sizeof(tmp_day), "0%d", day(timestamp));
+  } else {
+    snprintf(tmp_day, sizeof(tmp_day), "%d", day(timestamp));
+  }
+  
+  if(minute(timestamp) < 10) {
+    snprintf(tmp_minute, sizeof(tmp_minute), "0%d", minute(timestamp));
+  } else {
+    snprintf(tmp_minute, sizeof(tmp_minute), "%d", minute(timestamp));
+  }
+  
+  snprintf(tmp_timestamp, sizeof(tmp_timestamp), "%d%s%s_%s", year(), tmp_month, tmp_day, tmp_minute);
+  
+  return tmp_timestamp;
+}
+
 
 /* Those two functions should be in LittleFS file, but because dependency and lazyness */
 void Time2FS_Save() {

include/CanGrow_LittleFS.h

@@ -732,40 +732,18 @@ bool SaveConfig(bool writeToSerial = false) {
 void LFS_Chart_Log_Data(const byte chartId) {
   const static char LogLoc[] PROGMEM = "[LittleFS:Chart_Log_Data]";
   /* sensor data is in directory /d/ */
-  char fullpath[19]; //18
-  //char timestamp[6];
-  char tmp_month[3];
-  char tmp_day[3];
-  char tmp_minute[3];
+  char fullpath[24]; //18
   char tmp_message[32];
   char tmp_floatChar[16]; // = "12.34";
   float tmp_float = Sensor_getCalibratedValue(config.grow.dashboard.chartSensor[chartId], config.grow.dashboard.chartRead[chartId]);
   unsigned long timeNow = now();
   
-  if(month() < 10) {
-    snprintf(tmp_month, sizeof(tmp_month), "0%d", month());
-  } else {
-    snprintf(tmp_month, sizeof(tmp_month), "%d", month());
-  }
-  
-  if(day() < 10) {
-    snprintf(tmp_day, sizeof(tmp_day), "0%d", day());
-  } else {
-    snprintf(tmp_day, sizeof(tmp_day), "%d", day());
-  }
-  
-  if(minute() < 10) {
-    snprintf(tmp_minute, sizeof(tmp_minute), "0%d", minute());
-  } else {
-    snprintf(tmp_minute, sizeof(tmp_minute), "%d", minute());
-  }
-  
   /* build full path - looks like /d/0_1/20250420 */
-  snprintf(fullpath, sizeof(fullpath), "/chart/%d/%d%s%s_%s", chartId, year(), tmp_month, tmp_day, tmp_minute);
+  snprintf(fullpath, sizeof(fullpath), "/chart/%d/%s", chartId, Char_Timestamp_yyyymmdd(timeNow));
   /* build message
    * https://forum.arduino.cc/t/sprintf-a-float-number/1013193/5 */
   dtostrf(tmp_float, 2, 2, tmp_floatChar);
-  snprintf(tmp_message, sizeof(tmp_message), "%lu;%s\n", timeNow, tmp_floatChar);
+  snprintf(tmp_message, sizeof(tmp_message), "%lu;%s", timeNow, tmp_floatChar);
   
   
   
@@ -794,6 +772,11 @@ void LFS_Chart_Log_Data(const byte chartId) {
   file.close();
 }
 
+void LFS_Chart_Dirlist_Data() {
+  const static char LogLoc[] PROGMEM = "[LittleFS:Chart_Dirlist_Data]";
+  
+}
+
 ///*
  //* ESP8266 functions
  //*/