/*
 *  This sketch demonstrates how to scan WiFi networks.
 *  The API is almost the same as with the WiFi Shield library,
 *  the most obvious difference being the different file you need to include:
 */
#include <Arduino.h>
#include "ESP8266WiFi.h"

#include "relais.h"
#include "wlan.h"
#include "fader.h"
#include "ws2801.h"
#include "ws2801_udp.h"

#define NWLANFAV 5

const char *favorite_wlans[2*NWLANFAV] = {
	// SSID,                password (NULL if unencrypted)
	"Error-404",            "XKZbEF0AiMNPAGf4EbHAAZ",
	"Error-403",            "2b4EWWpqAyCpgOQK1oeD",
	"bytewerk",             "bluemchenwiese",
	"Freifunk",             NULL,
	"franken.freifunk.net", NULL
};

uint32_t fader_next_update = 0;
uint32_t fader_loop = 0;

void setup_wifi()
{
	bool connected = false;

	for(int i = 0; i < NWLANFAV; i++) {
		connected = (0 == wlan_connectto(favorite_wlans[2*i + 0], favorite_wlans[2*i + 1]));

		if(connected) {
			break;
		}
	}

	if(!connected) {
		Serial.println("All predefined WLANs failed to connect. Trying any open network.");

		connected = (0 == wlan_connect_any_open());
	}

	if(connected) {
		wlan_print_conninfo();
	} else {
		Serial.println("All WLAN connections failed. Giving up for now.");
	}
}

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

	setup_wifi();

	relais_setup();

	ws2801_init();
	fader_init();

	ws2801_udp_setup();

	for(int i = 0; i < MAX_NUM_MODULES; i++) {
		fader_set_colour(i, 0, 0, 0);
		fader_fade_colour(i, 0, 255, 0);
	}

	Serial.println("Setup done");
}

void loop()
{
	char buf[512];

	if(WiFi.status() != WL_CONNECTED) {
		// wifi disconnected -> attempt reconnect
		delay(5000);

		setup_wifi();
	}

	uint32_t now = millis();
	if(now > fader_next_update) {
		fader_update();

		fader_next_update += 10; // -> 100 FPS

		/*
		if((fader_loop % 200) == 0) {
			int round = (fader_loop / 200) % 3;
			if(round == 0) {
				for(int i = 0; i < MAX_NUM_MODULES; i++) {
					fader_fade_colour(i, 255, 0, 0);
				}
			} else if(round == 1) {
				for(int i = 0; i < MAX_NUM_MODULES; i++) {
					fader_fade_colour(i, 0, 255, 0);
				}
			} else {
				for(int i = 0; i < MAX_NUM_MODULES; i++) {
					fader_fade_colour(i, 0, 0, 255);
				}
			}
		}
		*/

		fader_loop++;
	}

	if(ws2801_udp_loop()) {
		relais_heartbeat();
	}

	relais_loop();
}