5. 人感センサーを使う – こちらから攻める

let humanSensorGpio = gpios[.P25]!
let humanSensorLedGpio = gpios[.P16]!

humanSensorGpio.direction = .IN
humanSensorLedGpio.direction = .OUT
humanSensorLedGpio.value = 0

humanSensorGpio.onChange { gpio in // ①Called when value changes
    if gpio.value == 1 {
        // Human detected
        self.humanSensorLedGpio.value = 1 // ②turn on the LED
        // (Omit: notify change)
    } else {
        self.humanSensorLedGpio.value = 0 //③turn off the LED
        // (Omit: notify change)
    }
}

// ①methods for monitoring
GpioManager.shared.observeHumanMoved { didDetected in
    if didDetected {
        print("Human detected!")
        // (Omit: Execute processing when a person is detected)
    } else {
        print("Human Not detected!")
    }
}

@discardableResult
func shell(_ args: String...) throws ->  Int32 {
    let task = Process()
    task.executableURL = URL(fileURLWithPath: "/usr/bin/env")
    task.arguments = args
    try task.run()
    task.waitUntilExit()
    return task.terminationStatus
}

resources: [
    // Copy resource file to bundle
    // Mac: Build artifacts are generated in the DerivedData directory
    // Linux: You can directly refer to the audio files in the cloned directory
    .process("warning_voice.mp3"),
]

let command: String
let path: String
#if os(Linux)
    command = "/usr/bin/mpg123"
    path = "\(Path.current)/Sources/SwiftHomePi" // If linux, returns repository path
#else
    command = "/opt/homebrew/bin/mpg123"
    // If Mac,  returns DerivedData path
    path = "\(Path.current)/SwiftHomePi_SwiftHomePi.bundle/Contents/Resources"
#endif

let voiceFilePath = "\(path)/warning_voice.mp3"
do {
    // ①Separate commands and parameters
    try shell(command, voiceFilePath)
} catch {
    print(error)
}

let serverKey = SwiftHomeCredentials.fcmServerKey
// This is demo app, so fmc token must be set manually.
let fmcToken = "xxxxxxxx"

let headers: Alamofire.HTTPHeaders = [
    .accept("*/*"),
    .contentType("application/json"),
    .acceptCharset("utf8"),
    .authorization("key=\(serverKey)")
]
let parameter = [
    "registration_ids": [
        fmcToken
    ],
    "notification": [
        "title": "侵入者通知⚠️",
        "body": "家への侵入者を検知しました！カメラを確認してください！",
        "badge": "0",
    ]
] as [String : Any]
let urlString = "https://fcm.googleapis.com/fcm/send"
AF.request(urlString,
           method: .post,
           parameters: parameter,
           encoding: JSONEncoding.default,
           headers: headers
)
.responseString(completionHandler: { response in
    print(response)
})