//
// This file hosts all the non-volatile configuration options for this node
//
#include "WiFiConfiguration.h"
#include <EEPROM.h>

#define EEROM_SIZE 512

// Change this when it is required to force a reinitialization
// 
#define EXPECTED_FMT 0x03				

typedef struct {
	uint8_t format[2];					// Format of this data structure, and ~format
	struct info {
		char name[CFG_NAMESIZE];		// Name of this node
		char ssid[CFG_SSIDSIZE];		// SSID of the saved network [max length defined by standard]
		char pass[CFG_PASSSIZE];		// PASScode of the saved network
		char updateURL[CFG_UURLSIZE];	// URL of the trusted server with code updates
		uint16_t onRef;					// A/D reference above which the output is considered 'On'
		uint16_t offRef;				// A/D reference below which the output is considered 'Off'
		uint16_t autoOff;				// When non-zero, this is the # minutes until auto-turn off
		//char NTPIP[64];				// Name or IP of the NTP Server
		char Padding[10];
	} info;
} Config_t;
#define OFS_FORMAT	(0)
#define OFS_NAME	(OFS_FORMAT + 2)
#define OFS_SSID	(OFS_NAME + CFG_NAMESIZE)
#define OFS_PASS	(OFS_SSID + CFG_SSIDSIZE)
#define OFS_URL		(OFS_PASS + CFG_PASSSIZE)
#define OFS_ONREF	(OFS_URL + CFG_UURLSIZE)
#define OFS_OFFREF	(OFS_ONREF + sizeof(uint16_t))
#define OFS_AUTOOFF (OFS_OFFREF + sizeof(uint16_t))
//#define OFS_NTPIP	(OFS_OFFREF + 2)

Config_t Configuration;

ConfigManager::ConfigManager() {

}

void ConfigManager::factoryReset() {
	Configuration.format[0] = EXPECTED_FMT;
	Configuration.format[1] = ~EXPECTED_FMT;
	strcpy(Configuration.info.name, "3-Way Switch");
	Configuration.info.ssid[0] = '\0';
	Configuration.info.pass[0] = '\0';
	//Configuration.info.updateURL[0] = '\0';
	strcpy(Configuration.info.updateURL, "https://192.168.1.201/mbed/ESP.php");
	Configuration.info.onRef = 150;
	Configuration.info.offRef = 100;
	Configuration.info.autoOff = 0;
	//Configuration.info.NTPIP[0] = '\0';
}

void ConfigManager::load() {
	EEPROM.begin(512);

	uint8_t * ptr = (uint8_t *) &Configuration;
	uint8_t i = 0;
	do {
		*ptr++ = EEPROM.read(OFS_FORMAT + i++);
	} while (i < sizeof(Configuration));
	if ((Configuration.format[0] & 0xFF) != (~Configuration.format[1] & 0xFF)) {
		// Factory default
		Serial.printf("Bad Configuration - reset to factory defaults\n");
		factoryReset();
		return;
	}
	Serial.printf("Loading from EEROM\n");
	Serial.printf("Node Name: %s\n", Configuration.info.name);
	Serial.printf("SSID: %s\n", Configuration.info.ssid);
	Serial.printf("PASS: %s\n", Configuration.info.pass);
	Serial.printf("URL : %s\n", Configuration.info.updateURL);
	Serial.printf("On   Ref: %d\n", Configuration.info.onRef);
	Serial.printf("Off  Ref: %d\n", Configuration.info.offRef);
	Serial.printf("Auto Off: %d\n", Configuration.info.autoOff);
	//Serial.printf("NTP Svr: %s\n", Configuration.info.NTPIP);
	delay(500);
}

void ConfigManager::save(void) {
	EEPROM.begin(512);
	uint8_t * ptr = (uint8_t *) &Configuration;
	uint8_t i = 0;
	do {
		EEPROM.write(OFS_FORMAT + i++, *ptr++);
	} while (i < sizeof(Configuration));
	EEPROM.commit();
	delay(500);
}

#if 0
String ConfigManager::getNTPServerName() {
	return String(Configuration.info.NTPIP);
}
void ConfigManager::setNTPServerName(String _name) {
	strncpy(Configuration.info.NTPIP, _name.c_str(), sizeof(Configuration.info.NTPIP));
	Serial.printf("setNTPServerName(%s)\n", Configuration.info.NTPIP);
}
#endif

String ConfigManager::getName() {
	return String(Configuration.info.name);
}

void ConfigManager::setName(String _name) {
	strncpy(Configuration.info.name, _name.c_str(), sizeof(Configuration.info.name));
	Serial.printf("setName(%s)\n", Configuration.info.name);
}

String ConfigManager::getSSID() {
	return String(Configuration.info.ssid);
}

void ConfigManager::setSSID(String _ssid) {
	strncpy(Configuration.info.ssid, _ssid.c_str(), sizeof(Configuration.info.ssid));
	Serial.printf("setSSID(%s)\n", Configuration.info.ssid);
}

String ConfigManager::getPassword() {
	return String(Configuration.info.pass);
}

void ConfigManager::setPassword(String _password) {
	strncpy(Configuration.info.pass, _password.c_str(), sizeof(Configuration.info.pass));
	Serial.printf("setPass(%s)\n", Configuration.info.pass);
}

String ConfigManager::getURL() {
	return String(Configuration.info.updateURL);
}

void ConfigManager::setURL(String _url) {
	strncpy(Configuration.info.updateURL, _url.c_str(), sizeof(Configuration.info.updateURL));
	Serial.printf("setURL (%s)\n", Configuration.info.updateURL);
}

uint16_t ConfigManager::getOnRef() {
	return Configuration.info.onRef;
}
void ConfigManager::setOnRef(uint16 onR) {
	Configuration.info.onRef = onR;
}
uint16_t ConfigManager::getOffRef() {
	return Configuration.info.offRef;
}
void ConfigManager::setOffRef(uint16 offR) {
	Configuration.info.offRef = offR;
}
uint16_t ConfigManager::getAutoOff() {
	return Configuration.info.autoOff;
}
void ConfigManager::setAutoOff(uint16 autoOff) {
	Configuration.info.autoOff = autoOff;
}