/*
 * 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 "user_interface/uiGlobals.h"
#include "hardware/HR-C6000.h"
#include "user_interface/menuSystem.h"
#include "user_interface/uiUtilities.h"
#include "user_interface/uiLocalisation.h"
#include "functions/voicePrompts.h"

#define NUM_DTMF_DIGITS  16

static char digits[SCREEN_LINE_BUFFER_SIZE]; // CCS7 or DTMF (maxlen 16 + terminator for screen rendering)
static int pcIdx;
static bool inAnalog = false;
static CodeplugContact_t contact;
static CodeplugDTMFContact_t dtmfContact;

static void updateCursor(void);
static void updateScreen(bool inputModeHasChanged);
static void handleEvent(uiEvent_t *ev);
static void announceContactName(void);

static const uint32_t CURSOR_UPDATE_TIMEOUT = 500;

enum DISPLAY_MENU_LIST { ENTRY_TG = 0, ENTRY_PC, ENTRY_DTMF, ENTRY_SELECT_CONTACT, ENTRY_USER_DMR_ID, NUM_ENTRY_ITEMS};
static const char *menuName[NUM_ENTRY_ITEMS];

static menuStatus_t menuNumericalExitStatus = MENU_STATUS_SUCCESS;


// public interface
menuStatus_t menuNumericalEntry(uiEvent_t *ev, bool isFirstRun)
{
	if (isFirstRun)
	{
		inAnalog = (trxGetMode() == RADIO_MODE_ANALOG);

		if (inAnalog)
		{
			dtmfSequenceReset();
		}

		menuName[ENTRY_TG] = currentLanguage->tg_entry;
		menuName[ENTRY_PC] = currentLanguage->pc_entry;
		menuName[ENTRY_DTMF] = currentLanguage->dtmf_entry;
		menuName[ENTRY_SELECT_CONTACT] = currentLanguage->contact;
		menuName[ENTRY_USER_DMR_ID] = ((uiDataGlobal.manualOverrideDMRId == 0) && (trxDMRID == uiDataGlobal.userDMRId)) ? currentLanguage->user_dmr_id : currentLanguage->dmr_id;
		menuDataGlobal.currentItemIndex = inAnalog ? ENTRY_DTMF : ENTRY_TG;

		menuDataGlobal.numItems = NUM_ENTRY_ITEMS;
		digits[0] = 0;
		pcIdx = 0;
		updateScreen(true);
		return (MENU_STATUS_INPUT_TYPE | MENU_STATUS_SUCCESS);
	}
	else
	{
		// Clear input type beep for AudioAssist
		menuNumericalExitStatus = MENU_STATUS_SUCCESS;

		if (ev->events == EVENT_BUTTON_NONE)
		{
			if ((menuDataGlobal.currentItemIndex != ENTRY_SELECT_CONTACT) && (strlen(digits) <= (inAnalog ? NUM_DTMF_DIGITS : NUM_PC_OR_TG_DIGITS)))
			{
				updateCursor();
			}
		}
		else
		{
			if (ev->hasEvent)
			{
				handleEvent(ev);
			}
			else
			{
				if ((menuDataGlobal.currentItemIndex != ENTRY_SELECT_CONTACT) && (strlen(digits) <= (inAnalog ? NUM_DTMF_DIGITS : NUM_PC_OR_TG_DIGITS)))
				{
					updateCursor();
				}
			}
		}
	}

	if (inAnalog)
	{
		dtmfSequenceTick(false);
	}

	return menuNumericalExitStatus;
}

static void updateCursor(void)
{
	size_t sLen;

	// Display blinking cursor only when digits could be entered, and no transmit error message is displayed
	if ((xmitErrorTimer == 0) && ((menuDataGlobal.currentItemIndex != ENTRY_SELECT_CONTACT) && ((sLen = strlen(digits)) <= (inAnalog ? NUM_DTMF_DIGITS : NUM_PC_OR_TG_DIGITS))))
	{
		static uint32_t lastBlink = 0;
		static bool     blink = false;
		uint32_t        m = ticksGetMillis();

		if ((m - lastBlink) > CURSOR_UPDATE_TIMEOUT)
		{
			sLen *= 8;

			displayThemeApply(THEME_ITEM_FG_TEXT_INPUT, THEME_ITEM_BG);
			displayPrintCore((((DISPLAY_SIZE_X - sLen) >> 1) + sLen), (DISPLAY_SIZE_Y / 2), "_", FONT_SIZE_3, 0, blink);
			displayThemeResetToDefault();

			blink = !blink;
			lastBlink = m;

			displayRender();
		}
	}
}

static void updateScreen(bool inputModeHasChanged)
{
	char buf[33];
	size_t sLen = strlen(menuName[menuDataGlobal.currentItemIndex]) * 8;
	int16_t y = 8;
#if defined(HAS_COLOURS)
	bool dblHeight = settingsIsOptionBitSet(BIT_UI_USES_DOUBLE_HEIGHT);
#else
	const bool dblHeight = false;
#endif

	displayClearBuf();

	displayThemeApply(THEME_ITEM_FG_DECORATION, THEME_ITEM_BG_MENU_NAME);
	displayDrawRoundRectWithDropShadow(2, y - 1, (DISPLAY_SIZE_X - 6), TITLE_BOX_HEIGHT, 3, true);

	displayThemeApply(THEME_ITEM_FG_MENU_NAME, THEME_ITEM_BG_MENU_NAME);
	// Not really centered, off by 2 pixels
	displayPrintAt(((DISPLAY_SIZE_X - sLen) >> 1) - 2, y, (char *)menuName[menuDataGlobal.currentItemIndex], FONT_SIZE_3);

	if (inputModeHasChanged)
	{
		voicePromptsInit();
		switch(menuDataGlobal.currentItemIndex)
		{
			case ENTRY_TG:
				voicePromptsAppendLanguageString(currentLanguage->tg_entry);
				break;
			case ENTRY_PC:
				voicePromptsAppendLanguageString(currentLanguage->pc_entry);
				break;
			case ENTRY_DTMF:
				voicePromptsAppendLanguageString(currentLanguage->dtmf_entry);
				break;
			case ENTRY_SELECT_CONTACT:
				voicePromptsAppendPrompt(PROMPT_CONTACT);
				{
					char buf2[17];
					codeplugUtilConvertBufToString((inAnalog ? dtmfContact.name : contact.name), buf2, 16);

					if (strlen(buf2))
					{
						voicePromptsAppendString(buf2);
					}
					else
					{
						voicePromptsAppendLanguageString(currentLanguage->name);
						voicePromptsAppendPrompt(PROMPT_SILENCE);
						voicePromptsAppendLanguageString(currentLanguage->none);
					}
				}
				break;
			case ENTRY_USER_DMR_ID:
				voicePromptsAppendString("ID");
				break;
		}

		promptsPlayNotAfterTx();
	}

	if (pcIdx == 0)
	{
		displayThemeApply(THEME_ITEM_FG_TEXT_INPUT, THEME_ITEM_BG);
		displayPrintCenteredDoubleHeight(((DISPLAY_SIZE_Y / 2) - (dblHeight ? FONT_SIZE_3_HEIGHT : 0)), (char *)digits, FONT_SIZE_3, dblHeight);
	}
	else
	{
		displayThemeApply(THEME_ITEM_FG_CHANNEL_CONTACT, THEME_ITEM_BG);

		codeplugUtilConvertBufToString((inAnalog ? dtmfContact.name : contact.name), buf, 16);
#if defined(HAS_COLOURS)
		displayPrintCenteredDoubleHeight(((DISPLAY_SIZE_Y / 2) - (dblHeight ? FONT_SIZE_3_HEIGHT : 0)), buf, FONT_SIZE_3, dblHeight);
		displayPrintCenteredDoubleHeight(((DISPLAY_SIZE_Y - FONT_SIZE_3_HEIGHT) - (dblHeight ? FONT_SIZE_3_HEIGHT : 0)), (char *)digits, FONT_SIZE_3, dblHeight);
#else
		displayPrintCentered((DISPLAY_SIZE_Y / 2), buf, FONT_SIZE_3);
		displayPrintCentered((DISPLAY_SIZE_Y - 12), (char *)digits, FONT_SIZE_1);
#endif
	}

	displayThemeResetToDefault();
	displayRender();
}

// curIdx: CODEPLUG_CONTACTS_MIN .. CODEPLUG_CONTACTS_MAX, if equal to 0 it means the previous index was unknown
static int getNextContact(int curIdx, bool next, CodeplugContact_t *ct)
{
	int idx = (curIdx != 0) ? (curIdx - 1) : (next ? (CODEPLUG_CONTACTS_MAX - 1) : 0);
	int startIdx = idx;

	do {
		idx = ((next ? (idx + 1) : (idx + (CODEPLUG_CONTACTS_MAX - 1)))) % CODEPLUG_CONTACTS_MAX;

		codeplugContactGetDataForIndex((idx + 1), ct);

	} while ((startIdx != idx) && ((*ct).name[0] == 0xff)); // will stops after one turn, maximum.

	return (((curIdx == 0) && ((*ct).name[0] == 0xff)) ? curIdx : (idx + 1));
}

// curIdx: CODEPLUG_DTMF_CONTACTS_MIN .. CODEPLUG_DTMF_CONTACTS_MAX, if equal to 0 it means the previous index was unknown
static int getNextDTMFContact(int curIdx, bool next, CodeplugDTMFContact_t *ct)
{
	int idx = (curIdx != 0) ? (curIdx - 1) : (next ? (CODEPLUG_DTMF_CONTACTS_MAX - 1) : 0);
	int startIdx = idx;

	do {
		idx = ((next ? (idx + 1) : (idx + (CODEPLUG_DTMF_CONTACTS_MAX - 1)))) % CODEPLUG_DTMF_CONTACTS_MAX;

		codeplugDTMFContactGetDataForIndex((idx + 1), ct);

	} while ((startIdx != idx) && ((*ct).name[0] == 0xff)); // will stops after one turn, maximum.

	return (((curIdx == 0) && ((*ct).name[0] == 0xff)) ? curIdx : (idx + 1));
}

static const uint8_t *dtmfDigits2Code(void)
{
	static uint8_t buffer[16];
	char *p = digits;

	memset(buffer, 0xFF, sizeof(buffer));

	for (uint8_t i = 0; i < 16; i++, p++)
	{
		if (*p == 0x00)
		{
			break;
		}
		else if (*p == '*')
		{
			buffer[i] = 0x0e;
		}
		else if (*p == '#')
		{
			buffer[i] = 0x0f;
		}
		else if (*p >= 'A' && *p <= 'D')
		{
			buffer[i] = (*p - 55);
		}
		else
		{
			buffer[i] =  (*p - '0');
		}
	}
	return buffer;
}

static void dtmfCode2digits(uint8_t *code)
{
	uint8_t *p = code;

	memset(digits, 0x00, sizeof(digits));

	for (uint8_t i = 0; i < 16; i++, p++)
	{
		if (*p == 0xFF)
		{
			break;
		}
		else if (*p == 0x0e)
		{
			digits[i] = '*';
		}
		else if (*p == 0x0f)
		{
			digits[i] = '#';
		}
		else
		{
			sprintf(digits + i, "%1X", *p);
		}
	}
}

static void announceContactName(void)
{
	if (nonVolatileSettings.audioPromptMode >= AUDIO_PROMPT_MODE_VOICE_THRESHOLD)
	{
		char buf[17];
		codeplugUtilConvertBufToString((inAnalog ? dtmfContact.name : contact.name), buf, 16);
		voicePromptsInit();

		if (strlen(buf))
		{
			voicePromptsAppendString(buf);
		}
		else
		{
			voicePromptsAppendLanguageString(currentLanguage->name);
			voicePromptsAppendPrompt(PROMPT_SILENCE);
			voicePromptsAppendLanguageString(currentLanguage->none);
		}
		voicePromptsPlay();
	}
}

static void handleEvent(uiEvent_t *ev)
{
	size_t sLen;
	uint32_t tmpID;

	if ((ev->events & FUNCTION_EVENT) && (ev->function == FUNC_REDRAW))
	{
		updateScreen(false);
		return;
	}

	// DTMF sequence is playing, stop it.
	if (dtmfSequenceIsKeying() && ((ev->keys.key != 0) || BUTTONCHECK_DOWN(ev, BUTTON_PTT)
#if ! defined(PLATFORM_RD5R)
													|| BUTTONCHECK_DOWN(ev, BUTTON_ORANGE)
#endif
	))
	{
		dtmfSequenceStop();
		keyboardReset();
		return;
	}

	if ((nonVolatileSettings.audioPromptMode >= AUDIO_PROMPT_MODE_VOICE_THRESHOLD) && (ev->events & BUTTON_EVENT))
	{
		if (BUTTONCHECK_SHORTUP(ev, BUTTON_SK1))
		{
			if (!voicePromptsIsPlaying())
			{
				voicePromptsInit();
				switch(menuDataGlobal.currentItemIndex)
				{
					case ENTRY_TG:
						voicePromptsAppendPrompt(PROMPT_TALKGROUP);
						voicePromptsAppendString(digits);
						break;
					case ENTRY_PC:
						voicePromptsAppendLanguageString(currentLanguage->private_call);
						voicePromptsAppendString(digits);
						break;
					case ENTRY_DTMF:
						voicePromptsAppendString("DTMF");
						voicePromptsAppendString(digits);
						break;
					case ENTRY_SELECT_CONTACT:
						voicePromptsAppendPrompt(PROMPT_CONTACT);
						{
							char buf[17];
							codeplugUtilConvertBufToString((inAnalog ? dtmfContact.name : contact.name), buf, 16);
							voicePromptsAppendString(buf);
						}
						break;
					case ENTRY_USER_DMR_ID:
						voicePromptsAppendString("ID");
						voicePromptsAppendString(digits);
						break;
				}
				voicePromptsPlay();
			}
			else
			{
				voicePromptsTerminate();
			}
		}
		return;
	}

	if (KEYCHECK_SHORTUP(ev->keys, KEY_RED))
	{
		menuSystemPopPreviousMenu();
		return;
	}
	else if (KEYCHECK_SHORTUP(ev->keys, KEY_GREEN))
	{
		if (inAnalog)
		{
			if (voicePromptsIsPlaying())
			{
				voicePromptsTerminateNoTail();
			}

			dtmfSequencePrepare((uint8_t *)dtmfDigits2Code(), true);
			menuNumericalExitStatus = MENU_STATUS_SUCCESS;
			return;
		}
		else
		{
			tmpID = (uint32_t)atoi(digits);

			if (tmpID <= MAX_TG_OR_PC_VALUE)
			{
				bool userIDEntered = (menuDataGlobal.currentItemIndex == ENTRY_USER_DMR_ID);

				if (userIDEntered == false)
				{
					if ((menuDataGlobal.currentItemIndex == ENTRY_PC) || ((pcIdx != 0) && (contact.callType == CONTACT_CALLTYPE_PC)))
					{
						setOverrideTGorPC(tmpID, true);
					}
					else
					{
						setOverrideTGorPC(tmpID, false);
					}

					// Apply TS override, if any
					if (menuDataGlobal.currentItemIndex == ENTRY_SELECT_CONTACT)
					{
						tsSetFromContactOverride(((menuSystemGetRootMenuNumber() == UI_CHANNEL_MODE) ? CHANNEL_CHANNEL : (CHANNEL_VFO_A + nonVolatileSettings.currentVFONumber)), &contact);
					}
				}
				else
				{
					uiDataGlobal.manualOverrideDMRId = tmpID;

					// The user's DMR ID has been entered, possibly clear the override.
					uint32_t chanIDOverride = codeplugChannelGetOptionalDMRID(currentChannelData);
					if ((uiDataGlobal.manualOverrideDMRId == uiDataGlobal.userDMRId) &&
							((chanIDOverride == 0) || (uiDataGlobal.manualOverrideDMRId == chanIDOverride)))
					{
						uiDataGlobal.manualOverrideDMRId = tmpID = 0;
					}

					if (tmpID != 0)
					{
						trxDMRID = uiDataGlobal.manualOverrideDMRId;
					}
					else
					{
						trxDMRID = uiDataGlobal.userDMRId;
					}

					if (BUTTONCHECK_DOWN(ev, BUTTON_SK2))
					{
						// make the change to DMR ID permanent if Function + Green is pressed
						codeplugSetUserDMRID(trxDMRID);
						uiDataGlobal.userDMRId = trxDMRID;

						if ((uiDataGlobal.manualOverrideDMRId != 0) &&
								((chanIDOverride == 0) || (uiDataGlobal.manualOverrideDMRId == chanIDOverride)))
						{
							uiDataGlobal.manualOverrideDMRId = 0;
						}
					}
				}

				uiDataGlobal.VoicePrompts.inhibitInitial = true;
				menuSystemPopAllAndDisplayRootMenu();

				if (userIDEntered == false)
				{
					announceItem(PROMPT_SEQUENCE_CONTACT_TG_OR_PC, PROMPT_THRESHOLD_3);
				}
				return;
			}
			else
			{
				menuNumericalExitStatus |= MENU_STATUS_ERROR;
			}

		}
	}
	else if (KEYCHECK_PRESS(ev->keys, KEY_HASH) && (inAnalog && (menuDataGlobal.currentItemIndex == ENTRY_DTMF) ? BUTTONCHECK_DOWN(ev, BUTTON_SK2) : true))
	{
		pcIdx = 0;

		menuNumericalExitStatus |= MENU_STATUS_INPUT_TYPE;

		if ((inAnalog == false) && ((BUTTONCHECK_DOWN(ev, BUTTON_SK2) != 0) && (menuDataGlobal.currentItemIndex == ENTRY_SELECT_CONTACT)))
		{
			snprintf(digits, 8, "%u", trxDMRID);
			menuDataGlobal.currentItemIndex = ENTRY_USER_DMR_ID;
		}
		else
		{
			menuDataGlobal.currentItemIndex++;

			// Jump over ENTRY_DTMF if in DMR
			if ((inAnalog == false) && menuDataGlobal.currentItemIndex == ENTRY_DTMF)
			{
				menuDataGlobal.currentItemIndex++;
			}

			if (menuDataGlobal.currentItemIndex > ENTRY_SELECT_CONTACT)
			{
				digits[0] = 0;
				menuDataGlobal.currentItemIndex = (inAnalog ? ENTRY_DTMF : ENTRY_TG);
			}
			else
			{
				if (menuDataGlobal.currentItemIndex == ENTRY_SELECT_CONTACT)
				{
					menuNumericalExitStatus &= ~MENU_STATUS_INPUT_TYPE;

					if (inAnalog)
					{
						pcIdx = getNextDTMFContact(0, true, &dtmfContact);
					}
					else
					{
						pcIdx = getNextContact(0, true, &contact);
					}

					if (pcIdx != 0)
					{
						if (inAnalog)
						{
							dtmfCode2digits(dtmfContact.code);
						}
						else
						{
							itoa(contact.tgNumber, digits, 10);
						}
						menuNumericalExitStatus |= (MENU_STATUS_LIST_TYPE | MENU_STATUS_FORCE_FIRST);
					}
				}
			}
		}
		updateScreen(true);
		return;
	}

	if (menuDataGlobal.currentItemIndex == ENTRY_SELECT_CONTACT)
	{
		int idx = pcIdx;

		if (KEYCHECK_SHORTUP(ev->keys, KEY_DOWN))
		{
			idx = (inAnalog ? getNextDTMFContact(pcIdx, true, &dtmfContact) : getNextContact(pcIdx, true, &contact));
			announceContactName();
		}
		else if (KEYCHECK_SHORTUP(ev->keys, KEY_UP))
		{
			idx = (inAnalog ? getNextDTMFContact(pcIdx, false, &dtmfContact) : getNextContact(pcIdx, false, &contact));
			announceContactName();
		}

		if (pcIdx != idx)
		{
			pcIdx = idx;

			if (inAnalog)
			{
				dtmfCode2digits(dtmfContact.code);
			}
			else
			{
				itoa(contact.tgNumber, digits, 10);
			}

			if (pcIdx == 1)
			{
				menuNumericalExitStatus |= (MENU_STATUS_LIST_TYPE | MENU_STATUS_FORCE_FIRST);
			}

			updateScreen(false);
		}
	}
	else
	{
		if ((sLen = strlen(digits)) <= (inAnalog ? NUM_DTMF_DIGITS : NUM_PC_OR_TG_DIGITS))
		{
			bool refreshScreen = false;

			// Inc / Dec entered value.
			if ((inAnalog == false) && (KEYCHECK_SHORTUP(ev->keys, KEY_UP) || KEYCHECK_SHORTUP(ev->keys, KEY_DOWN)))
			{
				if (strlen(digits))
				{
					unsigned long int ccs7 = strtoul(digits, NULL, 10);

					if (KEYCHECK_SHORTUP(ev->keys, KEY_UP))
					{
						if (ccs7 < MAX_TG_OR_PC_VALUE)
						{
							ccs7++;
						}
						refreshScreen = true;
					}
					else
					{
						if (ccs7 > 1)
						{
							ccs7--;
						}
						refreshScreen = true;
					}

					if (refreshScreen)
					{
						sprintf(digits, "%lu", ccs7);
					}
				}
			} // Delete a digit
			else if (KEYCHECK_PRESS(ev->keys, KEY_LEFT) && (inAnalog ? BUTTONCHECK_DOWN(ev, BUTTON_SK2) : true))
			{
				if ((sLen = strlen(digits)) > 0)
				{
					digits[sLen - 1] = 0;
					refreshScreen = true;
				}
			}
			else
			{
				// Add a digit
				if (sLen < (inAnalog ? NUM_DTMF_DIGITS : NUM_PC_OR_TG_DIGITS))
				{
					int keyval = menuGetKeypadKeyValue(ev, (inAnalog ? false : true));

					if (inAnalog)
					{
						// Calculate offsets for A/B/C/D/*/#
						switch (keyval)
						{
						case 0 ... 9: // As is
						break;

						case 10: // A
							keyval = 17;
							break;
						case 11: // B
							keyval = 18;
							break;
						case 12: // C
							keyval = 19;
							break;
						case 13: // D
							keyval = 20;
							break;
						case 14: // *
							keyval = -6;
							break;
						case 15: // #
							keyval = -13;
							break;
						}
					}

					if ((keyval != 99)
#if defined(PLATFORM_MD9600) || defined(PLATFORM_MD380) || defined(PLATFORM_MDUV380) || defined(PLATFORM_RT84_DM1701) || defined(PLATFORM_MD2017)
							&& (keyval != 16)
#endif
					)
					{
						char c[2] = {0, 0};
						c[0] = keyval + '0';

						if (nonVolatileSettings.audioPromptMode >= AUDIO_PROMPT_MODE_VOICE_THRESHOLD)
						{
							voicePromptsInit();
							voicePromptsAppendString(c);
							voicePromptsPlay();
						}

						strcat(digits, c);
						refreshScreen = true;
					}
				}
			}

			if (refreshScreen)
			{
				updateScreen(false);
			}

			updateCursor();
		}
	}
}