#pragma once
#include <Arduino.h>
#include <EEPROM.h>
#include "config.h"

#define CFG_MAGIC 0xA55A1234

struct NetConfig {
    uint32_t magic;
    bool     useDhcp;
    uint8_t  ip[4];
    uint8_t  gw[4];
    uint8_t  sn[4];
    uint8_t  dns[4];
    char     mqttBroker[40];
    uint16_t mqttPort;
    char     mqttUser[32];
    char     mqttPass[64];
    uint32_t updateMs;
};

inline void configDefaults(NetConfig& c) {
    c.magic   = CFG_MAGIC;
    c.useDhcp = DEFAULT_DHCP;
    uint8_t dip[] = {DEFAULT_STATIC_IP};
    uint8_t dgw[] = {DEFAULT_GW};
    uint8_t dsn[] = {DEFAULT_SUBNET};
    uint8_t ddn[] = {DEFAULT_DNS};
    memcpy(c.ip,  dip, 4);
    memcpy(c.gw,  dgw, 4);
    memcpy(c.sn,  dsn, 4);
    memcpy(c.dns, ddn, 4);
    strncpy(c.mqttBroker, DEFAULT_MQTT_BROKER, sizeof(c.mqttBroker) - 1);
    c.mqttBroker[sizeof(c.mqttBroker) - 1] = 0;
    c.mqttPort = DEFAULT_MQTT_PORT;
    strncpy(c.mqttUser, DEFAULT_MQTT_USER, sizeof(c.mqttUser) - 1);
    c.mqttUser[sizeof(c.mqttUser) - 1] = 0;
    strncpy(c.mqttPass, DEFAULT_MQTT_PASS, sizeof(c.mqttPass) - 1);
    c.mqttPass[sizeof(c.mqttPass) - 1] = 0;
    c.updateMs = DEFAULT_UPDATE_MS;
}

inline void configLoad(NetConfig& c) {
    EEPROM.get(0, c);
    if (c.magic != CFG_MAGIC) configDefaults(c);
}

inline void configSave(const NetConfig& c) {
    EEPROM.put(0, c);
}