Claire/src/WifiHandler.cpp

#include <Ticker.h>
#include <WiFiManager-esp32.h>  // https://github.com/admarschoonen/WiFiManager

#include "../include/WifiHandler.hpp"

WiFiManager wifiManager;
Ticker ticker;

static void tick(void) {
    int state = 0;

    if (LED_BUILTIN >= 0) {
        state = digitalRead(LED_BUILTIN);
        digitalWrite(LED_BUILTIN, !state);
    }
}

void set_blink_rate(float interval) {
    if (ticker.active()) {
        ticker.detach();
    }

    if (interval > 0.0f) {
        ticker.attach(interval, tick);
    }
}

void wifiManagerCb(WiFiManager::Status status) {
    if (status.mode == WiFiManager::Mode::CONNECTING) {
        set_blink_rate(TICKER_RATE_CONNECTING);
    } else if (status.mode == WiFiManager::Mode::SCANNING) {
        set_blink_rate(TICKER_RATE_CONNECTING);
    } else if (status.mode == WiFiManager::Mode::PORTAL) {
        set_blink_rate(TICKER_RATE_CONFIG);
    } else if (status.mode == WiFiManager::Mode::ERASING) {
        set_blink_rate(TICKER_RATE_ERASE);
    } else if (status.mode == WiFiManager::Mode::CONNECTED) {
        set_blink_rate(0.0f);
        digitalWrite(LED_BUILTIN, HIGH);
    } else if (status.mode == WiFiManager::Mode::DISCONNECTED) {
        set_blink_rate(0.0f);
        digitalWrite(LED_BUILTIN, LOW);
    }
}

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

    wifiManager.configure("Claire", wifiManagerCb);

    // fetches ssid and pass and tries to connect
    // if it does not connect it starts an access point
    // and goes into a blocking loop awaiting configuration
    if (!wifiManager.autoConnect()) {
        Serial.println("failed to connect and hit timeout");
        // reset and try again, or maybe put it to deep sleep
        ESP.restart();
        delay(1000);
    }

    // if you get here you have connected to the WiFi
    Serial.print("connected with address: ");
    Serial.println(WiFi.localIP());

    // keep LED on
    digitalWrite(LED_BUILTIN, HIGH);
}

void resetSettings() {
    WiFiManager::Status status = {.wifi_status = 0U, .mode = WiFiManager::Mode::ERASING};

    Serial.println("resetting wifi settings...");

    wifiManagerCb(status);
    wifiManager.resetSettings();
    delay(1000);
    status.mode = WiFiManager::Mode::DISCONNECTED;
    wifiManagerCb(status);

    return;
}