#include "beeper.h"

Beeper::Beeper(const char* device)
    : fd(-1), ret(0), devicePath(device) {
    memset(&event, 0, sizeof(event));
    event.type = EV_SND;
    event.code = SND_TONE;
}

Beeper::~Beeper() {
    if (fd > 0) {
        close(fd);
    }
}

bool Beeper::initialize() {
    fd = open(devicePath, O_RDWR);
    if (fd < 0) {
        perror("Failed to open input device");
        return false;
    }
    return true;
}

void Beeper::turnOn() {
    if (fd > 0) {
        event.value = 100; // 设定响度或音调
        ret = write(fd, &event, sizeof(event));
        if (ret < 0) {
            perror("Failed to write to input device");
        }
    }
}

void Beeper::turnOff() {
    if (fd > 0) {
        event.value = 0; // 停止蜂鸣
        ret = write(fd, &event, sizeof(event));
        if (ret < 0) {
            perror("Failed to write to input device");
        }
    }
}

void Beeper::wait_ms(int milliseconds) {
    usleep(milliseconds * 1000); // 转换为微秒并等待
}

void Beeper::beepOnce(int duration_ms) {
    turnOn();
    wait_ms(duration_ms);
    turnOff();
}

void Beeper::beepPattern() {
    beepOnce(100); // 响0.1秒
    wait_ms(100);  // 停止0.1秒
    beepOnce(100); // 再次响0.1秒
    wait_ms(600);  // 停止0.6秒
}