#include <Arduino.h>
#include <SPIFFS.h>

#include "Arena.h"
#include "Dictionary.h"
#include "WiFiMgr.h"
#include "homenet.h"


constexpr size_t	PHONEBOOK_SIZE = 512;
constexpr char		pbFilePath[] = "/pb.dat";
uint8_t   		phonebookBuffer[PHONEBOOK_SIZE];
Arena			arena;
Dictionary		phonebook(arena);


static bool
setupPhonebook()
{
	File	pbFile = SPIFFS.open(pbFilePath, FILE_READ);
	size_t	fileSize = pbFile.size();
	bool	ok = false;
	
	Serial.print("DAT FILE ");
	Serial.print(fileSize);
	Serial.println("B");
	if (fileSize == 0) {
		Serial.println("INIT PHONEBOOK");
		phonebook.Set(HOME_SSID, HOME_SSIDLEN, HOME_WPA, HOME_WPALEN);
		if (WriteArena(arena, pbFilePath) == 0) {
			ok = true;
		}

		pbFile.close();
		return ok;
	}	
	fileSize = fileSize > PHONEBOOK_SIZE ? PHONEBOOK_SIZE : fileSize;

	Serial.print("LOAD PHONEBOOK ");
	if (fileSize != pbFile.read(phonebookBuffer, fileSize)) {
		Serial.println("FAILED");
		pbFile.close();
		return false;
	}

	Serial.println("OK");
	pbFile.close();
	phonebook.DumpKVPairs();
	return true;
}


void setup() {
	Serial.begin(115200);
	while (!Serial) ;

	Serial.println("MODEM BOOT");
	InitializeArena(arena);
	NewStaticArena(arena, phonebookBuffer, PHONEBOOK_SIZE);

	if (!SPIFFS.begin(true) && !SPIFFS.begin(false)) {
		Serial.println("SPIFFS BEGIN FAIL");
		while (true) ;
	}
	setupPhonebook();

	while (!Autoconnect(phonebook)) {
		Serial.println("STANDBY");
		delay(1000);
	}

	Serial.println("MODEM READY");
}

void loop() {
  // put your main code here, to run repeatedly:
}