/**
 * @file adc_sensor.c
 * @brief Implementation of the ADC sensor library.
 *
 * This file contains the implementation for initializing and reading from ADC sensors.
 * It currently provides simulated values for voltage and current, with placeholders
 * for real hardware ADC implementation.
 */

#include <zephyr/kernel.h>
#include <zephyr/logging/log.h>
#include <lib/adc_sensor.h>

LOG_MODULE_REGISTER(adc_sensor, LOG_LEVEL_INF);

// Simulated values
#define SIMULATED_VOLTAGE_MV 12000
#define SIMULATED_CURRENT_MA 45

static bool initialized = false; // Flag to indicate if the ADC sensor is initialized

int adc_sensor_init(void)
{
    if (initialized) {
        return 0;
    }

#ifdef CONFIG_ADC_SENSOR_SIMULATED
    LOG_INF("ADC sensor initialized (simulated mode)");
    LOG_INF("Simulated values: %dmV, %dmA", SIMULATED_VOLTAGE_MV, SIMULATED_CURRENT_MA);
#else
    // TODO: Initialize real ADC hardware
    LOG_INF("ADC sensor initialized (real ADC mode - not yet implemented)");
#endif

    initialized = true;
    return 0;
}

uint16_t adc_sensor_get_voltage_mv(void)
{
    if (!initialized) {
        LOG_WRN("ADC sensor not initialized, calling adc_sensor_init()");
        adc_sensor_init();
    }

#ifdef CONFIG_ADC_SENSOR_SIMULATED
    return SIMULATED_VOLTAGE_MV;
#else
    // TODO: Read real ADC value for voltage
    // For now return simulated value
    return SIMULATED_VOLTAGE_MV;
#endif
}

uint16_t adc_sensor_get_current_ma(void)
{
    if (!initialized) {
        LOG_WRN("ADC sensor not initialized, calling adc_sensor_init()");
        adc_sensor_init();
    }

#ifdef CONFIG_ADC_SENSOR_SIMULATED
    return SIMULATED_CURRENT_MA;
#else
    // TODO: Read real ADC value for current
    // For now return simulated value
    return SIMULATED_CURRENT_MA;
#endif
}