/******************************************************************************
 * @file    car_audio_test.c
 * @brief   Car audio hardware test using the SDK key-tone sine path.
 *
 * Notes:
 * - The SDK sine sample rate is 16 kHz; points is the PCM sample count.
 * - freq is specified as actual frequency * 512.
 * - decay=0 keeps amplitude constant for observing DAC/PA end behavior.
 * - The parameter array has static storage because playback is asynchronous.
 ******************************************************************************/


#include <stdint.h>
#include "system/includes.h"
#include "tone_player.h"
#include "application/audio_dec_app.h"
#include "car_audio_test.h"
#include "app_audio_debug.h"

static uint16_t s_car_audio_restart_guard_ms;

int Car_Audio_Test_Play(void)
{
    /* bird.mp3 is packed as a standalone file in the internal resource area. */
    int ret;
    MAGIC_AUDIO_LOG("鸟叫接口进入：资源=%s，当前播放状态=%d",
                    SDFILE_RES_ROOT_PATH"bird.mp3", audio_key_tone_is_play());
    ret = audio_key_tone_play_name(SDFILE_RES_ROOT_PATH"bird.mp3", 1);
    MAGIC_AUDIO_LOG("鸟叫请求返回=%d（0仅表示请求已提交，不代表已经出声）", ret);
    return ret;
}


void Car_Audio_Test_Loop(uint16_t dt_ms)
{
    if (s_car_audio_restart_guard_ms > dt_ms) {
        s_car_audio_restart_guard_ms -= dt_ms;
        return;
    }

    if (audio_key_tone_is_play()) {
        return;
    }

    if (Car_Audio_Test_Play() == 0) {
        /*
         * 防止播放请求刚入队、SDK 尚未更新播放状态时被重复提交。
         */
        s_car_audio_restart_guard_ms = 50;
    }
}