#include <ESP8266WiFi.h>
#include <WiFiClient.h>
//#include <ESP8266HTTPClient.h>
#include <ESP8266WebServer.h>
#include <FS.h>

ESP8266WebServer server(80);

//https://steve.fi/Hardware/d1-flash/
void handleNotFound() {
  // If we could serve from flash we're good.
  Serial.println(server.uri());
  return;
  //if (loadFromSpiffs(server.uri()))
  //  return;

  // Otherwise a generic 404.
  String message = "File Not Detected\n\n";
  message += "URI: ";
  message += server.uri();
  message += "\nMethod: ";
  message += (server.method() == HTTP_GET) ? "GET" : "POST";
  message += "\nArguments: ";
  message += server.args();
  message += "\n";

  for (uint8_t i = 0; i < server.args(); i++) {
    message +=
        " NAME:" + server.argName(i) + "\n VALUE:" + server.arg(i) + "\n";
  }

  server.send(404, "text/plain", message);
  Serial.println(message);
}

void setup_mode() {
  WiFi.softAP("snapwire", "snapwire"); // Start the access point
  Serial.print("Access Point \"");
  // Serial.print(ssid);
  Serial.println("\" started");

  Serial.print("IP address:\t");
  Serial.println(
      WiFi.softAPIP()); // Send the IP address of the ESP8266 to the computer

  server.onNotFound(handleNotFound);
  server.begin();
}

void connect() {
  WiFi.mode(WIFI_STA);
  WiFi.hostname("flash-httpd");
  WiFi.begin("WEMOS", "SNAPWIRE");
  // Wait until we're connected.
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("WiFi connected");
  // Print the IP address
  Serial.print("Use this URL to connect: ");
  Serial.print("http://");
  Serial.print(WiFi.localIP());
  Serial.println("/");
}

void startup() {
  File f = SPIFFS.open("/index.html", "r");
  while (f.available()) {
    // Lets read line by line from the file
    String line = f.readStringUntil('\n');
    Serial.println(line);
  }

  f = SPIFFS.open("/config.txt", "r");
  if (!f.available()) {
    Serial.println("Launching in access point mode.");
    return;
  }
  Serial.println("Reading existing config.");

  while (f.available()) {
    // Lets read line by line from the file
    String line = f.readStringUntil('\n');
    Serial.println(line);
  }
}

void setup() {
  Serial.begin(115200);
  SPIFFS.begin();
  startup();
  setup_mode();
}


//ESP.restart();
void loop() {
  server.handleClient();
  //delay(2000);
  }