/**
 ******************************************************************************
 * @file    rf433_tx_app.c
 * @brief   RF433 TX应用层实现
 ******************************************************************************
 */

#include "rf433_config.h"

#if (RF433_MODE == RF433_MODE_TX) || (RF433_MODE == RF433_MODE_BOTH)

#include "rf433_tx_app.h"
#include "rf433.h"
#include "main.h"
#include <stdio.h>
#include <string.h>
#include "uart2_print.h"
#define DEBUG_CMD_PARSER  1
#if DEBUG_CMD_PARSER
#define DEBUG_LOG(fmt, ...)  UART2_Print_Printf("[CMD] " fmt "\r\n", ##__VA_ARGS__)
#else
#define DEBUG_LOG(fmt, ...)
#endif
/* ============================================================================
 * 私有变量
 * ============================================================================ */

static rf433_tx_app_t g_tx_app = {0};

/* ============================================================================
 * 私有函数声明
 * ============================================================================ */

/**
 * @brief 构造数据包
 * @param buffer 数据包缓冲区
 * @param buffer_size 缓冲区大小
 * @param total_count 总次数
 * @param current_count 当前序号
 * @return 实际数据包长度
 */
static uint16_t tx_build_packet(uint8_t *buffer, uint16_t buffer_size,
                                 uint32_t total_count, uint32_t current_count);

/**
 * @brief 控制LED_TX指示灯
 * @param state 0: 关闭, 1: 打开
 */
static void tx_led_control(uint8_t state);

/* ============================================================================
 * 私有函数实现
 * ============================================================================ */

static uint16_t tx_build_packet(uint8_t *buffer, uint16_t buffer_size,
                                 uint32_t total_count, uint32_t current_count)
{
    if (buffer == NULL || buffer_size < 16) {
        return 0;
    }

    // 数据包格式: "TX.总次数.当前序号."
    // 例如: "TX.010.001."
    int len = snprintf((char *)buffer, buffer_size, "TX.%03lu.%03lu.",
                       total_count, current_count);

    return (len > 0) ? (uint16_t)len : 0;
}

static void tx_led_control(uint8_t state)
{
    // LED_TX控制 - 使用gpio.c中定义的函数
    if (state) {
        gpio_led_tx_on();   // 打开LED_TX
    } else {
        gpio_led_tx_off();  // 关闭LED_TX
    }
}

/* ============================================================================
 * 公共API实现
 * ============================================================================ */

rf433_error_t rf433_tx_app_init(const rf433_register_t *config)
{
    if (config == NULL) {
        return RF433_ERROR;
    }

    // 初始化TX应用结构体
    memset(&g_tx_app, 0, sizeof(rf433_tx_app_t));
    g_tx_app.state = TX_STATE_INIT;
    g_tx_app.is_running = false;

    // 保存配置
    memcpy(&g_tx_app.config, config, sizeof(rf433_register_t));

    // 配置RF433模块
    rf433_error_t ret = rf433_set_config(&g_tx_app.config);
    if (ret != RF433_OK) {
        return ret;
    }

    // 设置为透明传输模式
    ret = rf433_set_work_mode(RF433_WORK_MODE_TRANSPARENT);
    if (ret != RF433_OK) {
        return ret;
    }

    return RF433_OK;
}

rf433_error_t rf433_tx_app_start(uint32_t count, uint32_t interval_ms)
{
    if (count == 0 || interval_ms == 0) {
        return RF433_ERROR;
    }

    g_tx_app.total_count = count;
    g_tx_app.send_count = 0;
    g_tx_app.send_interval_ms = interval_ms;
    g_tx_app.last_send_time = 0;
    g_tx_app.state = TX_STATE_INIT;
    g_tx_app.is_running = true;

    return RF433_OK;
}

rf433_error_t rf433_tx_app_stop(void)
{
    g_tx_app.is_running = false;
    g_tx_app.state = TX_STATE_IDLE;
    tx_led_control(0);

    return RF433_OK;
}

rf433_error_t rf433_tx_app_manual_send(uint8_t *data, uint16_t length)
{
    if (data == NULL || length == 0) {
        return RF433_ERROR;
    }

    // 发送数据
    rf433_error_t ret = rf433_transmit(data, length);
    if (ret == RF433_OK) {
        // LED闪烁指示
        tx_led_control(1);
        HAL_Delay(50);
        tx_led_control(0);
    }

    return ret;
}

void rf433_tx_app_task(void)
{
    if (!g_tx_app.is_running) {
        return;
    }

    uint32_t current_time = HAL_GetTick();

    switch (g_tx_app.state) {
        case TX_STATE_INIT:
            // 初始化完成，进入发送状态
            g_tx_app.state = TX_STATE_SENDING;
            break;

        case TX_STATE_SENDING:
            // 检查是否达到发送次数
            if (g_tx_app.send_count >= g_tx_app.total_count) {
                g_tx_app.state = TX_STATE_IDLE;
                tx_led_control(0);
                break;
            }

            // 检查发送间隔
            if (current_time - g_tx_app.last_send_time >= g_tx_app.send_interval_ms) {
                // 构造数据包
                uint8_t packet[32];
                uint16_t packet_len = tx_build_packet(packet, sizeof(packet),
                                                       g_tx_app.total_count,
                                                       g_tx_app.send_count + 1);

                if (packet_len > 0) {
                    // 发送数据
                    rf433_error_t ret = rf433_transmit(packet, packet_len);
                    if (ret == RF433_OK) {
                        g_tx_app.send_count++;
                        g_tx_app.last_send_time = current_time;

                        // LED闪烁指示
                        tx_led_control(1);
                        HAL_Delay(50);
                        tx_led_control(0);
                    }
                }

                g_tx_app.state = TX_STATE_WAITING;
            }
            break;

        case TX_STATE_WAITING:
            // 等待一段时间后继续发送
            if (current_time - g_tx_app.last_send_time >= g_tx_app.send_interval_ms) {
                g_tx_app.state = TX_STATE_SENDING;
            }
            break;

        case TX_STATE_IDLE:
            // 空闲状态，不做任何操作
            break;

        default:
            g_tx_app.state = TX_STATE_IDLE;
            break;
    }
}

tx_state_t rf433_tx_app_get_state(void)
{
    return g_tx_app.state;
}

uint32_t rf433_tx_app_get_send_count(void)
{
    return g_tx_app.send_count;
}

uint32_t rf433_tx_app_get_total_count(void)
{
    return g_tx_app.total_count;
}

void rf433_tx_app_reset_count(void)
{
    g_tx_app.send_count = 0;
    g_tx_app.last_send_time = 0;
    if (g_tx_app.is_running) {
        g_tx_app.state = TX_STATE_SENDING;
    }
}

#endif /* (RF433_MODE == RF433_MODE_TX) || (RF433_MODE == RF433_MODE_BOTH) */