/*
 * Copyright (C) 2019      Kai Ludwig, DG4KLU
 * Copyright (C) 2019-2025 Roger Clark, VK3KYY / G4KYF
 *                         Daniel Caujolle-Bert, F1RMB
 *
 *
 * Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer
 *    in the documentation and/or other materials provided with the distribution.
 *
 * 3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * 4. Use of this source code or binary releases for commercial purposes is strictly forbidden. This includes, without limitation,
 *    incorporation in a commercial product or incorporation into a product or project which allows commercial use.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
 * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */

#include "interfaces/settingsStorage.h"
#include "functions/settings.h"
#include "functions/sound.h"
#include "functions/trx.h"
#include "user_interface/menuSystem.h"
#include "user_interface/uiLocalisation.h"
#include "functions/ticks.h"
#include "functions/rxPowerSaving.h"
#if defined(HAS_GPS)
#include "interfaces/gps.h"
#endif
#include "user_interface/uiUtilities.h"


#define STORAGE_MAGIC_NUMBER          0x4780 // NOTE: never use 0xDEADBEEF, it's reserved value
// 0x4780: voxTailUnits member change, [1..11] (0.001s AKA no Vox Tail, 0.5 up to 5.0 seconds, 500ms steps)
// 0x477F: new gpsModeAndBaudsIndex and lastTalkerOnScreenTimer members, need to ensure lastTalkerOnScreenTimer equal to zero
// 0x477E: set BIT_UI_USES_DOUBLE_HEIGHT to false, and change extendedInfosOnScreen back to false by default
// 0x477D: set extendedInfosOnScreen to INFO_ON_SCREEN_TS. Enable double height when HAS_COLOURS is defined.
// 0x477C: adds distance sorting uint_8 and removes bitfield which was previously used for the similar functionality
// 0x477B: adds gpsLogMemBlockNum.
// 0x477A: keypadTimer{Long/Repeat} changed from u16 to u8, autolockTimer added.
// 0x4779: APRS beaconing settings added.
// 0x4778: abandon languageIndex, use BIT_SECONDARY_LANGUAGE instead. Struct reorg.
// 0x4777: add night backlight support.
// 0x4776: structure change:
//           - currentChannelIndexInZone and currentChannelIndexInAllZone members are only used on RD5R (moved to the end of the struct)
//           - settings address changed to 0x604B (due to Last Used Channel In Zone feature)
// 0x4775: due to theme addition, it handles and convert theme regarding the display invert bit (then clear that inversion bit).
// 0x4774: Fix incorrect settings storage of Lat Lon
// 0x4764: moves location at the top of the struct, make it upgradable.
// 0x4770: adds apo entry, upgradable.
// 0x4771: settings struct reorg

#if (defined(PLATFORM_RD5R) || defined(PLATFORM_MD9600))
static uint32_t dirtyTime = 0;
#endif

static bool settingsDirty = false;
static bool settingsVFODirty = false;
settingsStruct_t nonVolatileSettings;
CodeplugChannel_t *currentChannelData;
CodeplugChannel_t channelScreenChannelData = { .rxFreq = 0 };
CodeplugContact_t contactListContactData;
CodeplugDTMFContact_t contactListDTMFContactData;
CodeplugChannel_t settingsVFOChannel[2];// VFO A and VFO B from the codeplug.
volatile int settingsUsbMode = USB_MODE_CPS;

int16_t *nextKeyBeepMelody = (int16_t *)MELODY_KEY_BEEP;
CodeplugGeneralSettings_t settingsCodeplugGeneralSettings;

monitorModeSettingsStruct_t monitorModeData = { .isEnabled = false, .qsoInfoUpdated = true, .dmrIsValid = false };

#if !defined(PLATFORM_GD77S)
static void settingsVFOSanityCheck(CodeplugChannel_t *vfo, Channel_t VFONumber);
#endif

bool settingsSaveSettings(bool includeVFOs)
{
	if (spiFlashInitHasFailed) // Never save the settings if the flash initialization failed
	{
		return false;
	}

	if (includeVFOs)
	{
		codeplugSetVFO_ChannelData(&settingsVFOChannel[CHANNEL_VFO_A], CHANNEL_VFO_A);
		codeplugSetVFO_ChannelData(&settingsVFOChannel[CHANNEL_VFO_B], CHANNEL_VFO_B);

		settingsVFODirty = false;
	}

	// Never reset this setting (as voicePromptsCacheInit() can change it if voice data are missing)
#if defined(PLATFORM_GD77S)
	nonVolatileSettings.audioPromptMode = AUDIO_PROMPT_MODE_VOICE_LEVEL_3;
#endif

	bool ret = settingsStorageWrite((uint8_t *)&nonVolatileSettings, sizeof(settingsStruct_t));

	if (ret)
	{
		settingsDirty = false;
	}

	return ret;
}

bool settingsLoadSettings(bool reset)
{
	if (!settingsStorageRead((uint8_t *)&nonVolatileSettings, sizeof(settingsStruct_t)))
	{
		nonVolatileSettings.magicNumber = 0U;// flag settings could not be loaded
	}

	if (reset || (nonVolatileSettings.magicNumber != STORAGE_MAGIC_NUMBER))
	{
		settingsRestoreDefaultSettings();
		settingsLoadSettings(false);
		return true;
	}

	// Force Hotspot mode to off for existing RD-5R users.
#if defined(PLATFORM_RD5R)
	nonVolatileSettings.hotspotType = HOTSPOT_TYPE_OFF;
#endif

	codeplugGetVFO_ChannelData(&settingsVFOChannel[CHANNEL_VFO_A], CHANNEL_VFO_A);
	codeplugGetVFO_ChannelData(&settingsVFOChannel[CHANNEL_VFO_B], CHANNEL_VFO_B);

#if !defined(PLATFORM_GD77S)
	settingsVFOSanityCheck(&settingsVFOChannel[CHANNEL_VFO_A], CHANNEL_VFO_A);
	settingsVFOSanityCheck(&settingsVFOChannel[CHANNEL_VFO_B], CHANNEL_VFO_B);
#endif

	/* 2020.10.27  vk3kyy. This should not be necessary as the rest of the firmware e.g. on the VFO screen and in the contact lookup handles when Rx Group and / or Contact is set to none
	settingsInitVFOChannel(0);// clean up any problems with VFO data
	settingsInitVFOChannel(1);
	*/

	trxDMRID = uiDataGlobal.userDMRId = codeplugGetUserDMRID();
	CodeplugDeviceInfo_t tmpDeviceInfoBuffer;// Temporary buffer to load the data including the CPS user band limits
	if (codeplugGetDeviceInfo(&tmpDeviceInfoBuffer))
	{
		// Validate CPS band limit data
		if (	(tmpDeviceInfoBuffer.minVHFFreq < tmpDeviceInfoBuffer.maxVHFFreq) &&
				(tmpDeviceInfoBuffer.minUHFFreq > tmpDeviceInfoBuffer.maxVHFFreq) &&
				(tmpDeviceInfoBuffer.minUHFFreq < tmpDeviceInfoBuffer.maxUHFFreq) &&
				((tmpDeviceInfoBuffer.minVHFFreq * 100000) >= RADIO_HARDWARE_FREQUENCY_BANDS[RADIO_BAND_VHF].minFreq) &&
				((tmpDeviceInfoBuffer.minVHFFreq * 100000) <= RADIO_HARDWARE_FREQUENCY_BANDS[RADIO_BAND_VHF].maxFreq) &&

				((tmpDeviceInfoBuffer.maxVHFFreq * 100000) >= RADIO_HARDWARE_FREQUENCY_BANDS[RADIO_BAND_VHF].minFreq) &&
				((tmpDeviceInfoBuffer.maxVHFFreq * 100000) <= RADIO_HARDWARE_FREQUENCY_BANDS[RADIO_BAND_VHF].maxFreq) &&


				((tmpDeviceInfoBuffer.minUHFFreq * 100000) >= RADIO_HARDWARE_FREQUENCY_BANDS[RADIO_BAND_UHF].minFreq) &&
				((tmpDeviceInfoBuffer.minUHFFreq * 100000) <= RADIO_HARDWARE_FREQUENCY_BANDS[RADIO_BAND_UHF].maxFreq) &&

				((tmpDeviceInfoBuffer.maxUHFFreq * 100000) >= RADIO_HARDWARE_FREQUENCY_BANDS[RADIO_BAND_UHF].minFreq) &&
				((tmpDeviceInfoBuffer.maxUHFFreq * 100000) <= RADIO_HARDWARE_FREQUENCY_BANDS[RADIO_BAND_UHF].maxFreq)
			)
		{
			// Only use it, if EVERYTHING is OK.
			USER_FREQUENCY_BANDS[RADIO_BAND_VHF].minFreq = tmpDeviceInfoBuffer.minVHFFreq * 100000;// value needs to be in 10s of Hz;
			USER_FREQUENCY_BANDS[RADIO_BAND_VHF].maxFreq = tmpDeviceInfoBuffer.maxVHFFreq * 100000;// value needs to be in 10s of Hz;
			USER_FREQUENCY_BANDS[RADIO_BAND_UHF].minFreq = tmpDeviceInfoBuffer.minUHFFreq * 100000;// value needs to be in 10s of Hz;
			USER_FREQUENCY_BANDS[RADIO_BAND_UHF].maxFreq = tmpDeviceInfoBuffer.maxUHFFreq * 100000;// value needs to be in 10s of Hz;
		}

		if (nonVolatileSettings.timezone == 0)
		{
			nonVolatileSettings.timezone = SETTINGS_TIMEZONE_UTC;
		}

	}
	//codeplugGetGeneralSettings(&settingsCodeplugGeneralSettings);

	if (settingsIsOptionBitSet(BIT_SECONDARY_LANGUAGE) && (languagesGetCount() < 2))
	{
		settingsSetOptionBit(BIT_SECONDARY_LANGUAGE, false);
		settingsSetDirty();
	}
	else
	{
		settingsDirty = false;
	}

	currentLanguage = &languages[(settingsIsOptionBitSet(BIT_SECONDARY_LANGUAGE) ? 1 : 0)];

	soundBeepVolumeDivider = nonVolatileSettings.beepVolumeDivider;

	trxSetAnalogFilterLevel(nonVolatileSettings.analogFilterLevel);

	codeplugInitChannelsPerZone();// Initialise the codeplug channels per zone

	settingsVFODirty = false;

	rxPowerSavingSetLevel(nonVolatileSettings.ecoLevel);

	// Scan On Boot is enabled, but latest mode was VFO, switch back to Channel Mode
	if (settingsIsOptionBitSet(BIT_SCAN_ON_BOOT_ENABLED) && (nonVolatileSettings.initialMenuNumber != UI_CHANNEL_MODE))
	{
		settingsSet(nonVolatileSettings.initialMenuNumber, UI_CHANNEL_MODE);
	}

	if (settingsIsOptionBitSet(BIT_AUTO_NIGHT_OVERRIDE))
	{
		uiDataGlobal.daytimeOverridden = (DayTime_t)settingsIsOptionBitSet(BIT_AUTO_NIGHT_DAYTIME);
	}

	// If the menu structure if changed the enum for the screens is changed which can result the initial screen being something other than the CHANNEL or VFO screen
	if (nonVolatileSettings.initialMenuNumber != UI_CHANNEL_MODE && UI_CHANNEL_MODE != UI_VFO_MODE)
	{
		nonVolatileSettings.initialMenuNumber = UI_VFO_MODE;
	}

#if defined(HAS_GPS)
	if (SETTINGS_GPS_MODE_GET(nonVolatileSettings) >= NUM_GPS_MODES)
	{
		nonVolatileSettings.gpsModeAndBaudsIndex = SETTINGS_GPS_MODE_SET(nonVolatileSettings, GPS_NOT_DETECTED);
#if defined(STM32F405xx)
		gpsStartBaudRateAutodetection();
#endif
	}

#if defined(STM32F405xx)
	if ((SETTINGS_GPS_BAUDRATE_GET(nonVolatileSettings) == 0U) || (SETTINGS_GPS_BAUDRATE_GET(nonVolatileSettings) > GPS_BAUDRATES_ARRAY_MAX))
	{
		gpsStartBaudRateAutodetection();
	}
	else
	{
		gpsStopBaudRateAutodetection();
		gpsSetBaudRateByIndex((SETTINGS_GPS_BAUDRATE_GET(nonVolatileSettings) - 1));
	}
#endif
#endif

#if !defined(PLATFORM_GD77S)
	aprsBeaconingUpdateConfigurationFromSystemSettings();
#endif

	return false;
}

#if 0
void settingsInitVFOChannel(int vfoNumber)
{
	// temporary hack in case the code plug has no RxGroup selected
	// The TG needs to come from the RxGroupList
	if (settingsVFOChannel[vfoNumber].rxGroupList == 0)
	{
		settingsVFOChannel[vfoNumber].rxGroupList = 1;
	}

	if (settingsVFOChannel[vfoNumber].contact == 0)
	{
		settingsVFOChannel[vfoNumber].contact = 1;
	}
}
#endif

// returns true on default settings, false if upgraded.
bool settingsRestoreDefaultSettings(void)
{
	nonVolatileSettings.location.lat = SETTINGS_UNITIALISED_LOCATION_LAT;// Value that are out of range, so that it can be detected in the Satellite menu;
	nonVolatileSettings.location.lon = 0;
	nonVolatileSettings.timezone = SETTINGS_TIMEZONE_UTC;

	nonVolatileSettings.magicNumber = STORAGE_MAGIC_NUMBER;

	nonVolatileSettings.currentIndexInTRxGroupList[SETTINGS_CHANNEL_MODE] = 0;
	nonVolatileSettings.currentIndexInTRxGroupList[SETTINGS_VFO_A_MODE] = 0;
	nonVolatileSettings.currentIndexInTRxGroupList[SETTINGS_VFO_B_MODE] = 0;
	nonVolatileSettings.currentZone = 0;
	nonVolatileSettings.backlightMode =
#if defined(PLATFORM_GD77S)
			BACKLIGHT_MODE_NONE;
#else
			BACKLIGHT_MODE_AUTO;
#endif
	nonVolatileSettings.backLightTimeout = 0U;//0 = never timeout. 1 - 255 time in seconds
	nonVolatileSettings.displayContrast =
#if defined(PLATFORM_DM1801) || defined(PLATFORM_DM1801A)
			0x0e; // 14
#elif defined (PLATFORM_RD5R)
			0x06;
#else
			0x12; // 18
#endif
	nonVolatileSettings.initialMenuNumber =
#if defined(PLATFORM_GD77S)
			UI_CHANNEL_MODE;
#else
			UI_VFO_MODE;
#endif
	nonVolatileSettings.displayBacklightPercentage[DAY] = 100;// 100% brightness
	nonVolatileSettings.displayBacklightPercentage[NIGHT] = 100;
	nonVolatileSettings.displayBacklightPercentageOff = 0;// 0% brightness
	nonVolatileSettings.extendedInfosOnScreen = INFO_ON_SCREEN_OFF;
	nonVolatileSettings.txFreqLimited =
#if defined(PLATFORM_GD77S)
			BAND_LIMITS_NONE;//GD-77S is channelised, and there is no way to disable band limits from the UI, so disable limits by default.
#else
			BAND_LIMITS_ON_LEGACY_DEFAULT;// Limit Tx frequency to US Amateur bands
#endif
	nonVolatileSettings.txPowerLevel =
#if defined(PLATFORM_GD77S)
			3U; // 750mW
#else
			4U; // 1 W   3:750  2:500  1:250
#endif

	nonVolatileSettings.userPower = 4100U;// Max DAC value is 4095. 4100 is a hack to make the numbers more palatable.

	memset(&nonVolatileSettings.bitfieldOptions, 0, (sizeof(uint32_t) * SETTINGS_BITS_NUMBER_OF_BANKS));
#if !defined(PLATFORM_GD77S)
#if defined(PLATFORM_MD9600)
	settingsSetOptionBit(BIT_BATTERY_VOLTAGE_IN_HEADER, true);
#endif
#if defined(HAS_COLOURS)
	settingsSetOptionBit(BIT_UI_USES_DOUBLE_HEIGHT, false); // Enable double height for color devices
#endif
	settingsSetOptionBit(BIT_SETTINGS_UPDATED, true);// we need to keep track if the user has been notified about settings update.
#endif

	nonVolatileSettings.overrideTG = 0U;// 0 = No override
	nonVolatileSettings.txTimeoutBeepX5Secs = 2U;
	nonVolatileSettings.beepVolumeDivider = 4U; //-6dB: Beeps are way too loud using the same setting as the official firmware
	nonVolatileSettings.micGainDMR = SETTINGS_DMR_MIC_ZERO; // Normal value
	nonVolatileSettings.micGainFM = SETTINGS_FM_MIC_ZERO; // Normal Value
	nonVolatileSettings.tsManualOverride = 0U; // No manual TS override using the Star key
	nonVolatileSettings.currentVFONumber = CHANNEL_VFO_A;
	nonVolatileSettings.dmrDestinationFilter =
#if defined(PLATFORM_GD77S)
			DMR_DESTINATION_FILTER_TG;
#else
			DMR_DESTINATION_FILTER_NONE;
#endif
	nonVolatileSettings.dmrCcTsFilter = DMR_CCTS_FILTER_CC_TS;

	nonVolatileSettings.dmrCaptureTimeout = 10U;// Default to holding 10 seconds after a call ends
	nonVolatileSettings.analogFilterLevel = ANALOG_FILTER_CSS;
	trxSetAnalogFilterLevel(nonVolatileSettings.analogFilterLevel);
	nonVolatileSettings.scanDelay = 5U;// 5 seconds
	nonVolatileSettings.scanStepTime = 0;// 30ms
	nonVolatileSettings.scanModePause = SCAN_MODE_HOLD;
	nonVolatileSettings.squelchDefaults[RADIO_BAND_VHF]		= 10U;// 1 - 21 = 0 - 100% , same as from the CPS variable squelch
#if !(defined(PLATFORM_MD9600) || defined(PLATFORM_MD380))
	nonVolatileSettings.squelchDefaults[RADIO_BAND_220MHz]	= 10U;// 1 - 21 = 0 - 100% , same as from the CPS variable squelch
#endif
	nonVolatileSettings.squelchDefaults[RADIO_BAND_UHF]		= 10U;// 1 - 21 = 0 - 100% , same as from the CPS variable squelch
	nonVolatileSettings.hotspotType =
#if defined(PLATFORM_GD77S)
			HOTSPOT_TYPE_MMDVM;
#else
			HOTSPOT_TYPE_OFF;
#endif
	nonVolatileSettings.privateCalls =
#if defined(PLATFORM_GD77S)
			ALLOW_PRIVATE_CALLS_OFF;
#else
			ALLOW_PRIVATE_CALLS_ON;
#endif

    // Set all these value to zero to force the operator to set their own limits.
	nonVolatileSettings.vfoScanLow[CHANNEL_VFO_A] = 0U;
	nonVolatileSettings.vfoScanLow[CHANNEL_VFO_B] = 0U;
	nonVolatileSettings.vfoScanHigh[CHANNEL_VFO_A] = 0U;
	nonVolatileSettings.vfoScanHigh[CHANNEL_VFO_B] = 0U;

	nonVolatileSettings.contactDisplayPriority = CONTACT_DISPLAY_PRIO_CC_DB_TA;
	nonVolatileSettings.splitContact = SPLIT_CONTACT_ON_TWO_LINES;
	nonVolatileSettings.beepOptions = BEEP_TX_STOP | BEEP_TX_START;
	// VOX related
	nonVolatileSettings.voxThreshold = 20U;
	nonVolatileSettings.voxTailUnits = (1U + 4U); // 2 seconds tail

#if defined(PLATFORM_GD77S)
	nonVolatileSettings.audioPromptMode = AUDIO_PROMPT_MODE_VOICE_LEVEL_3;
#else
	nonVolatileSettings.audioPromptMode = (voicePromptDataIsLoaded ? AUDIO_PROMPT_MODE_VOICE_LEVEL_1 : AUDIO_PROMPT_MODE_BEEP);
#endif

	nonVolatileSettings.temperatureCalibration = 0;
	nonVolatileSettings.batteryCalibration = (0x05) + (0x07 << 4);// Time is in upper 4 bits battery calibration in upper 4 bits

	nonVolatileSettings.ecoLevel = 1;
	nonVolatileSettings.dmrRxAGC = 0;// disabled
	nonVolatileSettings.apo = 0;

	nonVolatileSettings.vfoSweepSettings = ((((sizeof(VFO_SWEEP_SCAN_RANGE_SAMPLE_STEP_TABLE) / sizeof(VFO_SWEEP_SCAN_RANGE_SAMPLE_STEP_TABLE[0])) - 1) << 12) | (VFO_SWEEP_RSSI_NOISE_FLOOR_DEFAULT << 7) | VFO_SWEEP_GAIN_DEFAULT);

	nonVolatileSettings.keypadTimerLong = 5U;
	nonVolatileSettings.keypadTimerRepeat = 3U;
	nonVolatileSettings.autolockTimer = 0U;
	nonVolatileSettings.roaming = ROAMING_OFF;

#if defined(HAS_GPS)
	nonVolatileSettings.gpsModeAndBaudsIndex = SETTINGS_GPS_MODE_SET(nonVolatileSettings, GPS_NOT_DETECTED);
#if defined(STM32F405xx)
	nonVolatileSettings.gpsModeAndBaudsIndex = SETTINGS_GPS_BAUDRATE_SET(nonVolatileSettings, 0U);
	gpsStartBaudRateAutodetection();
#endif

#if defined(LOG_GPS_DATA)
	nonVolatileSettings.gpsLogMemOffset = 0U;
#endif
#endif

	nonVolatileSettings.lastTalkerOnScreenTimer = 0U;

#if defined(PLATFORM_RD5R)
	nonVolatileSettings.currentChannelIndexInZone = 0;
	nonVolatileSettings.currentChannelIndexInAllZone = 1;
#else // These two has to be used on any platform but RD5R and MD-9600
	nonVolatileSettings.UNUSED_1 = 0;
	nonVolatileSettings.UNUSED_2 = 0;
#endif

#if !defined(PLATFORM_GD77S)
	aprsBeaconingUpdateSystemSettingsFromConfiguration();
#endif

	currentChannelData = &settingsVFOChannel[nonVolatileSettings.currentVFONumber];// Set the current channel data to point to the VFO data since the default screen will be the VFO

	//readDone: // Used when upgrading

	settingsDirty = true;

	settingsSaveSettings(false);

	return true;
}

void enableVoicePromptsIfLoaded(bool enableFullPrompts)
{
	if (voicePromptDataIsLoaded)
	{
#if defined(PLATFORM_GD77S)
		nonVolatileSettings.audioPromptMode = AUDIO_PROMPT_MODE_VOICE_LEVEL_3;
#else

		nonVolatileSettings.audioPromptMode = enableFullPrompts ? AUDIO_PROMPT_MODE_VOICE_LEVEL_3 : AUDIO_PROMPT_MODE_VOICE_LEVEL_1;
#endif
		settingsDirty = true;
		settingsSaveSettings(false);
	}
}

void settingsEraseCustomContent(void)
{
	//Erase OpenGD77 custom content
	SPI_Flash_eraseSector(FLASH_ADDRESS_OFFSET + 0);// The first sector (4k) contains the OpenGD77 custom codeplug content e.g. Boot melody and boot image.
}

// --- Helpers ---
void settingsSetBOOL(bool *s, bool v)
{
	*s = v;
	settingsSetDirty();
}

void settingsSetINT8(int8_t *s, int8_t v)
{
	*s = v;
	settingsSetDirty();
}

void settingsSetUINT8(uint8_t *s, uint8_t v)
{
	*s = v;
	settingsSetDirty();
}

void settingsSetINT16(int16_t *s, int16_t v)
{
	*s = v;
	settingsSetDirty();
}

void settingsSetUINT16(uint16_t *s, uint16_t v)
{
	*s = v;
	settingsSetDirty();
}

void settingsSetINT32(int32_t *s, int32_t v)
{
	*s = v;
	settingsSetDirty();
}

void settingsSetUINT32(uint32_t *s, uint32_t v)
{
	*s = v;
	settingsSetDirty();
}

void settingsIncINT8(int8_t *s, int8_t v)
{
	*s = *s + v;
	settingsSetDirty();
}

void settingsIncUINT8(uint8_t *s, uint8_t v)
{
	*s = *s + v;
	settingsSetDirty();
}

void settingsIncINT16(int16_t *s, int16_t v)
{
	*s = *s + v;
	settingsSetDirty();
}

void settingsIncUINT16(uint16_t *s, uint16_t v)
{
	*s = *s + v;
	settingsSetDirty();
}

void settingsIncINT32(int32_t *s, int32_t v)
{
	*s = *s + v;
	settingsSetDirty();
}

void settingsIncUINT32(uint32_t *s, uint32_t v)
{
	*s = *s + v;
	settingsSetDirty();
}

void settingsDecINT8(int8_t *s, int8_t v)
{
	*s = *s - v;
	settingsSetDirty();
}

void settingsDecUINT8(uint8_t *s, uint8_t v)
{
	*s = *s - v;
	settingsSetDirty();
}

void settingsDecINT16(int16_t *s, int16_t v)
{
	*s = *s - v;
	settingsSetDirty();
}

void settingsDecUINT16(uint16_t *s, uint16_t v)
{
	*s = *s - v;
	settingsSetDirty();
}

void settingsDecINT32(int32_t *s, int32_t v)
{
	*s = *s - v;
	settingsSetDirty();
}

void settingsDecUINT32(uint32_t *s, uint32_t v)
{
	*s = *s - v;
	settingsSetDirty();
}
// --- End of Helpers ---

void settingsSetOptionBit(bitfieldOptions_t bit, bool set)
{
	uint32_t value = SETTINGS_BITS_ARRAY_VALUE(bit);

	if (set)
	{
		nonVolatileSettings.bitfieldOptions[SETTINGS_BITS_ARRAY_BANK(bit)] |= value;
	}
	else
	{
		nonVolatileSettings.bitfieldOptions[SETTINGS_BITS_ARRAY_BANK(bit)] &= ~value;
	}
	settingsSetDirty();
}

bool settingsIsOptionBitSetFromSettings(settingsStruct_t *sets, bitfieldOptions_t bit)
{
	return ((sets->bitfieldOptions[SETTINGS_BITS_ARRAY_BANK(bit)] & SETTINGS_BITS_ARRAY_VALUE(bit)) == SETTINGS_BITS_ARRAY_VALUE(bit));
}

bool settingsIsOptionBitSet(bitfieldOptions_t bit)
{
	return (settingsIsOptionBitSetFromSettings(&nonVolatileSettings, bit));
}

// Screen dim level is stored as a 2-bit value across two option bits, so it needs
// no new settings field (existing codeplugs keep both bits clear = SCREEN_DIM_OFF).
uint8_t settingsGetScreenDimLevel(void)
{
	uint8_t level = (settingsIsOptionBitSet(BIT_SCREEN_DIM_0) ? 1 : 0) | (settingsIsOptionBitSet(BIT_SCREEN_DIM_1) ? 2 : 0) | (settingsIsOptionBitSet(BIT_SCREEN_DIM_2) ? 4 : 0);
	// Never return an out-of-range level: dimOpts[]/dimPercent[] are SCREEN_DIM_NUM long.
	return (level < SCREEN_DIM_NUM) ? level : SCREEN_DIM_OFF;
}

void settingsSetScreenDimLevel(uint8_t level)
{
	settingsSetOptionBit(BIT_SCREEN_DIM_0, ((level & 1) != 0));
	settingsSetOptionBit(BIT_SCREEN_DIM_1, ((level & 2) != 0));
	settingsSetOptionBit(BIT_SCREEN_DIM_2, ((level & 4) != 0));
}

// Battery header display mode is stored across two option bits so existing
// codeplugs (both bits clear) keep reading as BATTERY_UNIT_PERCENTAGE.
batteryUnitDisplay_t settingsGetBatteryUnitDisplay(void)
{
	if (settingsIsOptionBitSet(BIT_BATTERY_BARS_IN_HEADER))
	{
		return BATTERY_UNIT_BARS;
	}
	if (settingsIsOptionBitSet(BIT_BATTERY_VOLTAGE_IN_HEADER))
	{
		return BATTERY_UNIT_VOLTAGE;
	}
	return BATTERY_UNIT_PERCENTAGE;
}

void settingsSetBatteryUnitDisplay(batteryUnitDisplay_t mode)
{
	settingsSetOptionBit(BIT_BATTERY_VOLTAGE_IN_HEADER, (mode == BATTERY_UNIT_VOLTAGE));
	settingsSetOptionBit(BIT_BATTERY_BARS_IN_HEADER, (mode == BATTERY_UNIT_BARS));
}

void settingsSetDirty(void)
{
	settingsDirty = true;

#if defined(PLATFORM_RD5R)
	dirtyTime = ticksGetMillis();
#endif
}

void settingsSetVFODirty(void)
{
	settingsVFODirty = true;

#if defined(PLATFORM_RD5R)
	dirtyTime = ticksGetMillis();
#endif
}

void settingsSaveIfNeeded(bool immediately)
{
#if defined(PLATFORM_RD5R)
	const int DIRTY_DURATION_MILLISECS = 500;

	if ((settingsDirty || settingsVFODirty) &&
			(immediately || (((ticksGetMillis() - dirtyTime) > DIRTY_DURATION_MILLISECS) && // DIRTY_DURATION_MILLISECS has passed since last change
					((uiDataGlobal.Scan.active == false) || // not scanning, or scanning anything but channels
							(menuSystemGetCurrentMenuNumber() != UI_CHANNEL_MODE)))))
	{
		settingsSaveSettings(settingsVFODirty);
	}
#endif
}

int settingsGetScanStepTimeMilliseconds(void)
{
	return TIMESLOT_DURATION + (nonVolatileSettings.scanStepTime * TIMESLOT_DURATION);
}

#if !defined(PLATFORM_GD77S)
static void settingsVFOSanityCheck(CodeplugChannel_t *vfo, Channel_t vfoNumber)
{
	if ((trxGetBandFromFrequency(vfo->txFreq) == FREQUENCY_OUT_OF_BAND) || (trxGetBandFromFrequency(vfo->rxFreq) == FREQUENCY_OUT_OF_BAND))
	{
		vfo->chMode = RADIO_MODE_ANALOG;
		vfo->txFreq = vfo->rxFreq = DEFAULT_USER_FREQUENCY_BANDS[RADIO_BAND_VHF].minFreq;
		vfo->txTone = vfo->rxTone = CODEPLUG_CSS_TONE_NONE;
		vfo->sql = 10U;
		vfo->VFOflag5 &= 0x0F; // set freq step to 2.5kHz

		codeplugSetVFO_ChannelData(vfo, vfoNumber);
	}
}
#endif

bool settingsLocationIsValid(void)
{
	return (nonVolatileSettings.location.lat != SETTINGS_UNITIALISED_LOCATION_LAT);
}

double settingsLocationGetLatitude(void)
{
	return latLonFixed32ToDouble(nonVolatileSettings.location.lat);
}

double settingsLocationGetLongitude(void)
{
	return 	latLonFixed32ToDouble(nonVolatileSettings.location.lon);
}
