#include <string.h>
#include <zephyr/device.h>
#include <zephyr/drivers/lora.h>
#include <zephyr/kernel.h>
#include <zephyr/shell/shell.h>
#include <zephyr/sys/util.h>

#define DEFAULT_RADIO_NODE DT_ALIAS(lora0)
BUILD_ASSERT(DT_NODE_HAS_STATUS(DEFAULT_RADIO_NODE, okay),
             "Board has no LoRa modem");
const struct device *const lora_dev = DEVICE_DT_GET(DEFAULT_RADIO_NODE);

#define LOG_LEVEL CONFIG_LOG_DEFAULT_LEVEL
#include <zephyr/logging/log.h>
LOG_MODULE_REGISTER(lora);

static struct lora_modem_config modem_config = {
	.frequency = 433175000,
	.bandwidth = BW_125_KHZ,
	.datarate = SF_10,
	.preamble_len = 8,
	.coding_rate = CR_4_5,
	.iq_inverted = false,
	.public_network = false,
	.tx_power = 4,
	.tx = true
};

void lora_tx_cb(const struct shell *sh, size_t argc, char *argv[])
{
	if (argc != 2) {
		LOG_ERR("lora_tx requires exactly one argument");
		return;
	}

	int ret = lora_send(lora_dev, argv[1], strlen(argv[1]));
	if (ret < 0) {
		LOG_ERR("LoRa send failed");
		return;
	}

	LOG_INF("tx: %s", argv[1]);
}
SHELL_CMD_ARG_REGISTER(tx, NULL, "send via LoRa", lora_tx_cb, 2, 0);

void lora_rx_cb(const struct device *dev, uint8_t *data, uint16_t size,
                int16_t rssi, int8_t snr)
{
	ARG_UNUSED(dev);
	ARG_UNUSED(size);

	LOG_INF("rx: %s (RSSI: %d dBm, SNR: %d dBm)", data, rssi, snr);
}

int main(void)
{
	if (!device_is_ready(lora_dev)) {
		LOG_ERR("%s Device not ready", lora_dev->name);
		return 0;
	}

	int ret = lora_config(lora_dev, &modem_config);
	if (ret < 0) {
		LOG_ERR("LoRa config failed");
		return 0;
	}

//	lora_recv_async(lora_dev, lora_rx_cb);
	k_sleep(K_FOREVER);
	return 0;
}