53 lines
1.3 KiB
C++
53 lines
1.3 KiB
C++
#include <LittleFS.h>
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#include <ArduinoJson.h>
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#include "config.h"
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#include "app_settings.h"
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AppSettings settings;
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static const char* PATH = "/settings.json";
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void settingsDefaults() {
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settings.altitudeM = DEFAULT_ALTITUDE_M;
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settings.tzOffsetMin = DEFAULT_TZ_OFFSET_MIN;
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settings.lat = DEFAULT_LAT;
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settings.lon = DEFAULT_LON;
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}
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static bool settingsLoad() {
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File f = LittleFS.open(PATH, "r");
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if (!f) return false;
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JsonDocument doc;
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DeserializationError err = deserializeJson(doc, f);
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f.close();
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if (err) return false;
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settings.altitudeM = doc["altitude"] | DEFAULT_ALTITUDE_M;
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settings.tzOffsetMin = doc["tz"] | DEFAULT_TZ_OFFSET_MIN;
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settings.lat = doc["lat"] | DEFAULT_LAT;
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settings.lon = doc["lon"] | DEFAULT_LON;
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return true;
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}
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bool settingsSave() {
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JsonDocument doc;
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doc["altitude"] = settings.altitudeM;
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doc["tz"] = settings.tzOffsetMin;
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doc["lat"] = settings.lat;
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doc["lon"] = settings.lon;
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File f = LittleFS.open(PATH, "w");
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if (!f) return false;
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serializeJson(doc, f);
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f.close();
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return true;
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}
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void settingsBegin() {
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if (!LittleFS.begin()) {
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LittleFS.format();
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LittleFS.begin();
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}
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settingsDefaults();
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if (!settingsLoad()) { // first boot: persist defaults
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settingsSave();
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}
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}
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