WLED/wled00/presets.cpp

81 lines
2.3 KiB
C++

#include "wled.h"
/*
* Methods to handle saving and loading presets to/from the filesystem
*/
bool applyPreset(byte index)
{
if (index == 0) return false;
if (fileDoc) {
errorFlag = readObjectFromFileUsingId("/presets.json", index, fileDoc) ? ERR_NONE : ERR_FS_PLOAD;
JsonObject fdo = fileDoc->as<JsonObject>();
if (fdo["ps"] == index) fdo.remove("ps"); //remove load request for same presets to prevent recursive crash
#ifdef WLED_DEBUG_FS
serializeJson(*fileDoc, Serial);
#endif
deserializeState(fdo, index);
} else {
DEBUGFS_PRINTLN(F("Make read buf"));
DynamicJsonDocument fDoc(JSON_BUFFER_SIZE);
errorFlag = readObjectFromFileUsingId("/presets.json", index, &fDoc) ? ERR_NONE : ERR_FS_PLOAD;
JsonObject fdo = fDoc.as<JsonObject>();
if (fdo["ps"] == index) fdo.remove("ps");
#ifdef WLED_DEBUG_FS
serializeJson(fDoc, Serial);
#endif
deserializeState(fdo, index);
}
if (!errorFlag) {
currentPreset = index;
return true;
}
return false;
}
//persist=false is not currently honored
void savePreset(byte index, bool persist, const char* pname, JsonObject saveobj)
{
if (index == 0 || index > 250) return;
bool docAlloc = (fileDoc != nullptr);
JsonObject sObj = saveobj;
if (!docAlloc) {
DEBUGFS_PRINTLN(F("Allocating saving buffer"));
DynamicJsonDocument lDoc(JSON_BUFFER_SIZE);
sObj = lDoc.to<JsonObject>();
if (pname) sObj["n"] = pname;
DEBUGFS_PRINTLN(F("Save current state"));
serializeState(sObj, true);
currentPreset = index;
writeObjectToFileUsingId("/presets.json", index, &lDoc);
} else { //from JSON API
DEBUGFS_PRINTLN(F("Reuse recv buffer"));
sObj.remove(F("psave"));
sObj.remove(F("v"));
if (!sObj["o"]) {
DEBUGFS_PRINTLN(F("Save current state"));
serializeState(sObj, true, sObj["ib"], sObj["sb"]);
currentPreset = index;
}
sObj.remove("o");
sObj.remove("ib");
sObj.remove("sb");
sObj.remove(F("error"));
sObj.remove(F("time"));
writeObjectToFileUsingId("/presets.json", index, fileDoc);
}
presetsModifiedTime = toki.second(); //unix time
updateFSInfo();
}
void deletePreset(byte index) {
StaticJsonDocument<24> empty;
writeObjectToFileUsingId("/presets.json", index, &empty);
presetsModifiedTime = toki.second(); //unix time
updateFSInfo();
}