/*
 * ModularWeatherStation
 *
 * Copyright (C) 2021 Gergely Polonkai
 * Author: Gergely POLONKAI <gergely@polonkai.eu>
 *
 * ModularWeatherStation is free software: you can redistribute it
 * and/or modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation, either version 3 of
 * the License, or (at your option) any later version.
 *
 * ModularWeatherStation is distributed in the hope that it will be
 * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * As additional permission under GNU GPL version 3 section 7, you may
 * distribute non-source form of the Program without the copy of the
 * GNU GPL normally required by section 4, provided you inform the
 * receipents of GNU GPL by a written offer.
 *
 */

#include <ESP8266WiFi.h>
#include <WiFiClient.h>
#include <ESP8266mDNS.h>
#include <ESP8266WebServer.h>

#include "config.h"

ESP8266WebServer server(80);

static const char TEXT_PLAIN[] PROGMEM = "text/plain";

void
reply_not_found()
{
    server.send(404, FPSTR(TEXT_PLAIN), "Not Found");
}

void
send_metrics()
{
    char message[1];

    snprintf(message, 1, "");

    server.send(200, "text/plain; version=0.0.4; charset=utf-8", message);
}

void
setup()
{
    IPAddress address;

    Serial.begin(9600);

    WiFi.mode(WIFI_STA);
    WiFi.begin(WIFI_SSID, WIFI_PASS);

    while (WiFi.status() != WL_CONNECTED) {
        delay(500);
        Serial.println("Waiting for WiFi to connect...");
    }

    address = WiFi.localIP();
    Serial.print("WiFi Address: ");
    address.printTo(Serial);
    Serial.println("");

    if (!MDNS.begin(MDNS_NAME)) {
        Serial.println("Error setting up mDNS responder!");

        while (1) {
            delay(1000);
        }
    }

    server.on("/metrics", HTTP_GET, send_metrics);
    server.onNotFound(reply_not_found);

    server.begin();

    MDNS.addService("http", "tcp", 80);

    Serial.println("All set, starting the loop.");
}

void
loop()
{
    MDNS.update();
    server.handleClient();
}