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307 lines
7.9 KiB
307 lines
7.9 KiB
/*
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SETTINGS MODULE
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Copyright (C) 2016-2019 by Xose Pérez <xose dot perez at gmail dot com>
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*/
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#pragma once
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#include <Arduino.h>
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#include <functional>
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#include <utility>
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#include <vector>
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#include <type_traits>
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#include <ArduinoJson.h>
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#include "broker.h"
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#include "storage_eeprom.h"
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#include "settings_embedis.h"
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BrokerDeclare(ConfigBroker, void(const String& key, const String& value));
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// --------------------------------------------------------------------------
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void resetSettings();
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void saveSettings();
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void autosaveSettings();
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namespace settings {
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class EepromStorage {
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public:
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uint8_t read(size_t pos) {
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return eepromRead(pos);
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}
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void write(size_t pos, uint8_t value) {
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eepromWrite(pos, value);
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}
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void commit() {
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autosaveSettings();
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}
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};
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using kvs_type = embedis::KeyValueStore<EepromStorage>;
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extern kvs_type kv_store;
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} // namespace settings
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// --------------------------------------------------------------------------
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class SettingsKey {
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public:
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SettingsKey(const char* key) :
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_key(key)
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{}
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SettingsKey(const String& key) :
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_key(key)
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{}
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SettingsKey(String&& key) :
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_key(std::move(key))
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{}
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SettingsKey(const String& prefix, unsigned char index) {
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_key.reserve(prefix.length());
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_key += prefix;
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_key += index;
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}
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SettingsKey(String&& prefix, unsigned char index) :
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_key(std::move(prefix))
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{
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_key += index;
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}
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SettingsKey(const char* prefix, unsigned char index) :
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_key(prefix)
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{
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_key += index;
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}
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bool operator==(const char* other) const {
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return _key == other;
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}
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bool operator==(const String& other) const {
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return _key == other;
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}
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const String& toString() const {
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return _key;
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}
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explicit operator String() const & {
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return _key;
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}
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explicit operator String() && {
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return std::move(_key);
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}
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private:
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String _key;
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};
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using settings_move_key_t = std::pair<SettingsKey, SettingsKey>;
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using settings_filter_t = std::function<String(String& value)>;
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// --------------------------------------------------------------------------
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struct settings_cfg_t {
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String& setting;
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const char* key;
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const char* default_value;
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};
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using settings_cfg_list_t = std::initializer_list<settings_cfg_t>;
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// --------------------------------------------------------------------------
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namespace settings {
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namespace internal {
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template <typename T>
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using is_arduino_string = std::is_same<String, typename std::decay<T>::type>;
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template <typename T>
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using enable_if_arduino_string = std::enable_if<is_arduino_string<T>::value>;
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template <typename T>
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using enable_if_not_arduino_string = std::enable_if<!is_arduino_string<T>::value>;
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// --------------------------------------------------------------------------
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uint32_t u32fromString(const String& string, int base);
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template <typename T>
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T convert(const String& value);
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// --------------------------------------------------------------------------
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template <>
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float convert(const String& value);
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template <>
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double convert(const String& value);
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template <>
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int convert(const String& value);
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template <>
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long convert(const String& value);
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template <>
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bool convert(const String& value);
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template <>
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unsigned long convert(const String& value);
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template <>
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unsigned int convert(const String& value);
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template <>
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unsigned short convert(const String& value);
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template <>
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unsigned char convert(const String& value);
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template<typename T>
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String serialize(const T& value);
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} // namespace internal
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} // namespace settings
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// --------------------------------------------------------------------------
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struct settings_key_match_t {
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using match_f = bool(*)(const char* key);
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using key_f = const String(*)(const String& key);
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match_f match;
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key_f key;
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};
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void settingsRegisterDefaults(const settings_key_match_t& matcher);
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String settingsQueryDefaults(const String& key);
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// --------------------------------------------------------------------------
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void moveSetting(const String& from, const String& to);
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void moveSetting(const String& from, const String& to, unsigned int index);
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void moveSettings(const String& from, const String& to);
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template <typename T, typename = typename settings::internal::enable_if_not_arduino_string<T>::type>
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T getSetting(const SettingsKey& key, T defaultValue) __attribute__((noinline));
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template <typename T, typename = typename settings::internal::enable_if_not_arduino_string<T>::type>
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T getSetting(const SettingsKey& key, T defaultValue) {
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auto result = settings::kv_store.get(key.toString());
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if (!result) {
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return defaultValue;
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}
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return settings::internal::convert<T>(result.value);
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}
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String getSetting(const char* key);
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String getSetting(const String& key);
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String getSetting(const __FlashStringHelper* key);
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String getSetting(const SettingsKey& key);
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String getSetting(const SettingsKey& key, const char* defaultValue);
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String getSetting(const SettingsKey& key, const __FlashStringHelper* defaultValue);
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String getSetting(const SettingsKey& key, const String& defaultValue);
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String getSetting(const SettingsKey& key, const String& defaultValue);
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String getSetting(const SettingsKey& key, String&& defaultValue);
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template<typename T, typename = typename settings::internal::enable_if_arduino_string<T>::type>
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bool setSetting(const SettingsKey& key, T&& value) {
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return settings::kv_store.set(key.toString(), value);
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}
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template<typename T, typename = typename settings::internal::enable_if_not_arduino_string<T>::type>
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bool setSetting(const SettingsKey& key, T value) {
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return setSetting(key, std::move(String(value)));
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}
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bool delSetting(const char* key);
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bool delSetting(const String& key);
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bool delSetting(const __FlashStringHelper* key);
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bool delSetting(const SettingsKey& key);
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bool hasSetting(const char* key);
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bool hasSetting(const String& key);
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bool hasSetting(const __FlashStringHelper* key);
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bool hasSetting(const SettingsKey& key);
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void settingsGetJson(JsonObject& data);
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bool settingsRestoreJson(char* json_string, size_t json_buffer_size = 1024);
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bool settingsRestoreJson(JsonObject& data);
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size_t settingsKeyCount();
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std::vector<String> settingsKeys();
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void settingsProcessConfig(const settings_cfg_list_t& config, settings_filter_t filter = nullptr);
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size_t settingsSize();
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void settingsSetup();
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// -----------------------------------------------------------------------------
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// Configuration updates
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// -----------------------------------------------------------------------------
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int migrateVersion();
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void migrate();
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// -----------------------------------------------------------------------------
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// Deprecated implementation
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// -----------------------------------------------------------------------------
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template <typename T>
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String getSetting(const String& key, unsigned char index, T defaultValue)
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__attribute__((deprecated("getSetting({key, index}, default) should be used instead")));
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template<typename T>
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bool setSetting(const String& key, unsigned char index, T value)
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__attribute__((deprecated("setSetting({key, index}, value) should be used instead")));
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template<typename T>
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bool hasSetting(const String& key, unsigned char index)
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__attribute__((deprecated("hasSetting({key, index}) should be used instead")));
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template<typename T>
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bool delSetting(const String& key, unsigned char index)
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__attribute__((deprecated("delSetting({key, index}) should be used instead")));
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// --------------------------------------------------------------------------
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template<typename T>
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String getSetting(const String& key, unsigned char index, T defaultValue) {
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return getSetting({key, index}, defaultValue);
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}
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template<typename T>
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bool setSetting(const String& key, unsigned char index, T value) {
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return setSetting({key, index}, value);
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}
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template<typename T>
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bool hasSetting(const String& key, unsigned char index) {
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return hasSetting({key, index});
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}
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template<typename T>
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bool delSetting(const String& key, unsigned char index) {
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return delSetting({key, index});
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}
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