239 lines
7.4 KiB
C++
239 lines
7.4 KiB
C++
#include "wled.h"
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/*
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* Methods to handle saving and loading presets to/from the filesystem
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*/
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#ifdef ARDUINO_ARCH_ESP32
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static char *tmpRAMbuffer = nullptr;
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#endif
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static volatile byte presetToApply = 0;
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static volatile byte callModeToApply = 0;
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static volatile byte presetToSave = 0;
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static volatile int8_t saveLedmap = -1;
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static char quickLoad[9];
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static char saveName[33];
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static bool includeBri = true, segBounds = true, selectedOnly = false, playlistSave = false;;
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static const char *getFileName(bool persist = true) {
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return persist ? "/presets.json" : "/tmp.json";
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}
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static void doSaveState() {
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bool persist = (presetToSave < 251);
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const char *filename = getFileName(persist);
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if (!requestJSONBufferLock(10)) return; // will set fileDoc
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initPresetsFile(); // just in case if someone deleted presets.json using /edit
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JsonObject sObj = doc.to<JsonObject>();
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DEBUG_PRINTLN(F("Serialize current state"));
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if (playlistSave) {
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serializePlaylist(sObj);
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if (includeBri) sObj["on"] = true;
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} else {
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serializeState(sObj, true, includeBri, segBounds, selectedOnly);
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}
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sObj["n"] = saveName;
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if (quickLoad[0]) sObj[F("ql")] = quickLoad;
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if (saveLedmap >= 0) sObj[F("ledmap")] = saveLedmap;
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/*
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#ifdef WLED_DEBUG
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DEBUG_PRINTLN(F("Serialized preset"));
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serializeJson(doc,Serial);
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DEBUG_PRINTLN();
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#endif
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*/
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#if defined(ARDUINO_ARCH_ESP32)
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if (!persist) {
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if (tmpRAMbuffer!=nullptr) free(tmpRAMbuffer);
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size_t len = measureJson(*fileDoc) + 1;
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DEBUG_PRINTLN(len);
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// if possible use SPI RAM on ESP32
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#ifdef WLED_USE_PSRAM
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if (psramFound())
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tmpRAMbuffer = (char*) ps_malloc(len);
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else
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#endif
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tmpRAMbuffer = (char*) malloc(len);
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if (tmpRAMbuffer!=nullptr) {
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serializeJson(*fileDoc, tmpRAMbuffer, len);
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} else {
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writeObjectToFileUsingId(filename, presetToSave, fileDoc);
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}
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} else
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#endif
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writeObjectToFileUsingId(filename, presetToSave, fileDoc);
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if (persist) presetsModifiedTime = toki.second(); //unix time
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releaseJSONBufferLock();
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updateFSInfo();
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// clean up
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saveLedmap = -1;
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presetToSave = 0;
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saveName[0] = '\0';
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quickLoad[0] = '\0';
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playlistSave = false;
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}
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bool getPresetName(byte index, String& name)
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{
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if (!requestJSONBufferLock(9)) return false;
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bool presetExists = false;
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if (readObjectFromFileUsingId(getFileName(), index, &doc))
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{
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JsonObject fdo = doc.as<JsonObject>();
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if (fdo["n"]) {
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name = (const char*)(fdo["n"]);
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presetExists = true;
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}
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}
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releaseJSONBufferLock();
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return presetExists;
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}
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void initPresetsFile()
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{
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if (WLED_FS.exists(getFileName())) return;
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StaticJsonDocument<64> doc;
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JsonObject sObj = doc.to<JsonObject>();
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sObj.createNestedObject("0");
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File f = WLED_FS.open(getFileName(), "w");
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if (!f) {
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errorFlag = ERR_FS_GENERAL;
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return;
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}
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serializeJson(doc, f);
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f.close();
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}
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bool applyPreset(byte index, byte callMode)
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{
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DEBUG_PRINT(F("Request to apply preset: "));
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DEBUG_PRINTLN(index);
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presetToApply = index;
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callModeToApply = callMode;
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return true;
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}
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void handlePresets()
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{
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if (presetToSave) {
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doSaveState();
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return;
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}
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if (presetToApply == 0 || fileDoc) return; // no preset waiting to apply, or JSON buffer is already allocated, return to loop until free
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bool changePreset = false;
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uint8_t tmpPreset = presetToApply; // store temporary since deserializeState() may call applyPreset()
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uint8_t tmpMode = callModeToApply;
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JsonObject fdo;
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const char *filename = getFileName(tmpPreset < 255);
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// allocate buffer
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if (!requestJSONBufferLock(9)) return; // will also assign fileDoc
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presetToApply = 0; //clear request for preset
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callModeToApply = 0;
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DEBUG_PRINT(F("Applying preset: "));
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DEBUG_PRINTLN(tmpPreset);
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#ifdef ARDUINO_ARCH_ESP32
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if (tmpPreset==255 && tmpRAMbuffer!=nullptr) {
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deserializeJson(*fileDoc,tmpRAMbuffer);
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errorFlag = ERR_NONE;
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} else
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#endif
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{
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errorFlag = readObjectFromFileUsingId(filename, tmpPreset, fileDoc) ? ERR_NONE : ERR_FS_PLOAD;
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}
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fdo = fileDoc->as<JsonObject>();
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//HTTP API commands
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const char* httpwin = fdo["win"];
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if (httpwin) {
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String apireq = "win"; // reduce flash string usage
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apireq += F("&IN&"); // internal call
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apireq += httpwin;
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handleSet(nullptr, apireq, false); // may call applyPreset() via PL=
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setValuesFromFirstSelectedSeg(); // fills legacy values
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changePreset = true;
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} else {
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if (!fdo["seg"].isNull() || !fdo["on"].isNull() || !fdo["bri"].isNull() || !fdo["nl"].isNull() || !fdo["ps"].isNull() || !fdo[F("playlist")].isNull()) changePreset = true;
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fdo.remove("ps"); //remove load request for presets to prevent recursive crash
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deserializeState(fdo, CALL_MODE_NO_NOTIFY, tmpPreset); // may change presetToApply by calling applyPreset()
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}
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if (!errorFlag && tmpPreset < 255 && changePreset) presetCycCurr = currentPreset = tmpPreset;
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#if defined(ARDUINO_ARCH_ESP32)
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//Aircoookie recommended not to delete buffer
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if (tmpPreset==255 && tmpRAMbuffer!=nullptr) {
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free(tmpRAMbuffer);
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tmpRAMbuffer = nullptr;
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}
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#endif
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releaseJSONBufferLock(); // will also clear fileDoc
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if (changePreset) notify(tmpMode); // force UDP notification
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stateUpdated(tmpMode); // was colorUpdated() if anything breaks
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updateInterfaces(tmpMode);
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}
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//called from handleSet(PS=) [network callback (fileDoc==nullptr), IR (irrational), deserializeState, UDP] and deserializeState() [network callback (filedoc!=nullptr)]
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void savePreset(byte index, const char* pname, JsonObject sObj)
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{
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if (index == 0 || (index > 250 && index < 255)) return;
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if (pname) strlcpy(saveName, pname, 33);
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else {
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if (sObj["n"].is<const char*>()) strlcpy(saveName, sObj["n"].as<const char*>(), 33);
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else sprintf_P(saveName, PSTR("Preset %d"), index);
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}
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DEBUG_PRINT(F("Saving preset (")); DEBUG_PRINT(index); DEBUG_PRINT(F(") ")); DEBUG_PRINTLN(saveName);
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presetToSave = index;
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playlistSave = false;
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if (sObj[F("ql")].is<const char*>()) strlcpy(quickLoad, sObj[F("ql")].as<const char*>(), 9); // client limits QL to 2 chars, buffer for 8 bytes to allow unicode
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if (sObj["o"].isNull()) { // no "o" means not a playlist or custom API call, saving of state is async (not immediately)
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includeBri = sObj["ib"].as<bool>() || index==255; // temporary preset needs brightness
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segBounds = sObj["sb"].as<bool>() || index==255; // temporary preset needs bounds
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selectedOnly = sObj[F("sc")].as<bool>();
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saveLedmap = sObj[F("ledmap")] | -1;
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} else {
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// this is a playlist or API call
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if (sObj[F("playlist")].isNull()) {
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// we will save API call immediately
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presetToSave = 0;
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if (index > 250 || !fileDoc) return; // cannot save API calls to temporary preset (255)
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sObj.remove("o");
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sObj.remove("v");
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sObj.remove("time");
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sObj.remove(F("error"));
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sObj.remove(F("psave"));
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if (sObj["n"].isNull()) sObj["n"] = saveName;
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initPresetsFile(); // just in case if someone deleted presets.json using /edit
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writeObjectToFileUsingId(getFileName(index), index, fileDoc);
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presetsModifiedTime = toki.second(); //unix time
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updateFSInfo();
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} else {
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// store playlist
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includeBri = true; // !sObj["on"].isNull();
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playlistSave = true;
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}
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}
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}
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void deletePreset(byte index) {
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StaticJsonDocument<24> empty;
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writeObjectToFileUsingId(getFileName(), index, &empty);
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presetsModifiedTime = toki.second(); //unix time
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updateFSInfo();
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} |