#include "OneWire.h"
#include "DallasTemperature.h"

//#define DEBUG_MODE            //开关,负责控制是否输出调试信息

#define LED_PIN 3               // LED灯连接到Arduino的数字引脚3 & 4号引脚不行 分别对应356 引脚
#define LED_COUNT 4             // LED灯的数量
#define ONE_WIRE_BUS 2          // DS18B20数据引脚连接到Arduino的数字引脚2

#ifdef DEBUG_MODE
#define  PRINT_DEBUG_INFO printDebugInfo
#else
#define  PRINT_DEBUG_INFO
#endif


bool flag = 1;                  //9号引脚的灯，设置在外面用来提醒人们发生火灾，maybe
int buttonState8 = 0;           // 按钮状态
const int buzzerPin = 7;        //蜂鸣器连7号引脚
const int buttonPin = 8;        // 按钮连接到Arduino的引脚8，控制蜂鸣器响了之后，让其关闭
bool buzzerActive = true;

OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);

void btnHandler();

void closeAllLight();

void setAllLightTo100();

void setAllLightTo255();

void playEmergencyMusic();

void printTemprature(float temperature);

void printDebugInfo(const char *format, ...);

#define DEBUG_MODE

void setup()
{
    Serial.begin(9600);
    pinMode(7, OUTPUT);//蜂鸣器
    sensors.begin(); // 初始化DS18B20传感器

    for (int i = 0; i < LED_COUNT; i++)
    {
        pinMode(LED_PIN + i, OUTPUT); // 设置每个LED引脚为输出模式
        closeAllLight();
    }
    pinMode(buttonPin, INPUT);   // 设置按钮引脚为输入模式
}

void loop()
{
    sensors.requestTemperatures(); // 请求温度读数
    float temperature = sensors.getTempCByIndex(0); // 获取温度值（摄氏度）

    closeAllLight();

    switch((int)(temperature/10))
    {
        case 0:
        {
            closeAllLight();
            break;
        }
        case 1:
        {
            analogWrite(LED_PIN + 0, 20);
            break;
        }
        case 2:
        {
            analogWrite(LED_PIN + 0, 50);
            analogWrite(LED_PIN + 2, 50);
            break;
        }
        case 3:
        {
            setAllLightTo100();
            break;
        }
        case 4:
        case 5:
        case 6:
        case 7:
        case 8:
        case 9:
        case 10:
        {
            setAllLightTo255();
            btnHandler();
            break;
        }
        default:
        {
            closeAllLight();
            break;
        }
    }
    printTemprature(temperature);

    delay(1000); // 延迟1秒钟
}

void closeAllLight()
{
    for (int i = 0; i < LED_COUNT; i++)
    {
        PRINT_DEBUG_INFO("All light had been close!\n");
        analogWrite(LED_PIN + i, 0); // 关闭所有LED灯
    }
    return;
}

void setAllLightTo100()
{
    for (int i = 0; i < LED_COUNT; i++)
    {
        PRINT_DEBUG_INFO(
                "All light had been set to%d!\n",
                100);
        analogWrite(LED_PIN + i, 100); // 设置LED灯亮度为100
    }
    return;
}

void setAllLightTo255()
{
    for (int i = 0; i < LED_COUNT; i++)
    {
        PRINT_DEBUG_INFO(
                "All light had been set to%d!\n",
                255);
        analogWrite(LED_PIN + i, 255); // 设置LED灯亮度为最大值
    }
    return;
}

void btnHandler()
{
    PRINT_DEBUG_INFO("btnHandler had been called\n");
    if (flag == 1)
    {
        if (buttonState8 == 0)
        {
            Serial.print("蜂鸣器疯狂响\n");
            playEmergencyMusic();
        }
        else
        {
            Serial.print("蜂鸣器不响了\n");
            flag = 0;
        }
    }
    return;
}

void printTemprature(float temperature)
{
    Serial.print("Temperature: ");
    Serial.print(temperature);
    Serial.println(" °C");
    return;
}

void playEmergencyMusic()
{
    // 紧急逃生音乐序列
    for (int i = 200; i <= 800; i++)
    {
        buttonState8 = digitalRead(buttonPin);  // 读取按钮状态

        if (buttonState8 == 1)
        {
            noTone(buzzerPin); // 停止蜂鸣器发声
            // 蜂鸣器停止发声时，将 buzzerActive 设置为 false
            //buzzerActive = false;
            return; // 退出函数
        }
        else
        {
            tone(buzzerPin, i); //在7号端口输出频率
            delay(5); //该频率维持5毫秒
        }

        // 控制LED灯的闪烁

        digitalWrite(3, HIGH);
        digitalWrite(5, HIGH);
        digitalWrite(6, HIGH);
        digitalWrite(13, HIGH);


        delay(100); // 闪烁时间

        digitalWrite(3, LOW);
        digitalWrite(5, LOW);
        digitalWrite(6, LOW);
        digitalWrite(13, LOW); // 关闭LED灯

        delay(100); // 闪烁时间
    }

    for (int i = 800; i >= 200; i--)
    {
        buttonState8 = digitalRead(buttonPin);  // 读取按钮状态
        if (buttonState8 == 1)
        {
            noTone(buzzerPin); // 停止蜂鸣器发声
            // 蜂鸣器停止发声时，将 buzzerActive 设置为 false
            //buzzerActive = false;
            return; // 退出函数

            for (int i = 0; i < LED_COUNT; i++)     // 在蜂鸣器停止发声后，关闭LED灯
                digitalWrite(LED_PIN + i, LOW);
        }
        else
        {
            tone(buzzerPin, i);            //在7号端口输出频率
            delay(10);                     //该频率维持5毫秒
        }
        delay(10);
    }
}

void printDebugInfo(const char *format, ...)
{
    static char buffer[512];

    va_list args;
    va_start(args, format);
    sprintf(buffer, format, args);

    Serial.print(buffer);
}