#include "includes.h"

/* ==================== 氛围灯循环状态 ==================== */
#define RGB_INTERVAL_MS   300      /* 颜色切换间隔 300ms */

static const uint8_t auto_rgb_seq[] = {
    COLOR_CYA,   /* 青 */
    COLOR_B,     /* 蓝 */
    COLOR_G,     /* 绿 */
    COLOR_R,     /* 红 */
};
#define AUTO_RGB_CNT  (sizeof(auto_rgb_seq)/sizeof(auto_rgb_seq[0]))

static uint8_t  rgb_state = 0;
static uint32_t rgb_tick_stamp = 0;

static uint8_t key_last = KEY_NULL;

void app_tm1617_init(void)
{
    rt_mutex_take(TM1617_Mutex, RT_WAITING_FOREVER);
    TM1617_Init();            /* 清零 + 显示模式 + 初始亮度 */
    TM1617_SetRGB(COLOR_OFF, 0);   /* 确保熄灭 */
    rt_mutex_release(TM1617_Mutex);

    rgb_state = 0;
    rgb_tick_stamp = 0;
    key_last = KEY_NULL;
}

void app_tm1617_set_rgb(uint8_t color, uint8_t brightness)
{
    if (brightness > 7)
        brightness = 7;

    rt_mutex_take(TM1617_Mutex, RT_WAITING_FOREVER);
    TM1617_SetRGB(color, brightness);
    rt_mutex_release(TM1617_Mutex);
}

void app_tm1617_off(void)
{
    rt_mutex_take(TM1617_Mutex, RT_WAITING_FOREVER);
    TM1617_SetRGB(COLOR_OFF, 0);
    rt_mutex_release(TM1617_Mutex);
}

/* 氛围灯自动循环：300ms 切换一次颜色 */
void app_tm1617_auto_loop(void)
{  
    uint32_t now = rt_tick_get();

    if ((now - rgb_tick_stamp) >= RGB_INTERVAL_MS)
    {
        rgb_tick_stamp = now;

        if (rgb_state >= AUTO_RGB_CNT)
            rgb_state = 0;

        rt_mutex_take(TM1617_Mutex, RT_WAITING_FOREVER);
        TM1617_SetRGB(auto_rgb_seq[rgb_state], 7);
        rt_mutex_release(TM1617_Mutex);

        rgb_state++;
        if (rgb_state >= AUTO_RGB_CNT)
            rgb_state = 0;
    }
}

uint8_t app_tm1617_scan_key(void)
{
    uint8_t key;
    
    rt_mutex_take(TM1617_Mutex, RT_WAITING_FOREVER);
    key = (uint8_t)TM1617_ScanFkey();
    rt_mutex_release(TM1617_Mutex);

    if (key != key_last) 
    {
        key_last = key;
        LOG_I("KEY", "tm1617 key=%u", (unsigned)key);
        TM1617_Handle(key);
        return key;
    }
    return KEY_NULL;
}