tosspay 0.1.0

사업자 등록증 없이 결제 시스템을 만들수있는 라이브러리
Documentation 
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use std::{sync::mpsc, thread};

use rand::Rng;
static mut IDS: Vec<String> = Vec::new();
static mut RES: TossPayJson = TossPayJson {
    resultType: String::new(),
    success: TossPaySuccess {
        nextCursor: String::new(),
        data: Vec::new(),
    },
};
static mut IS_RUNNING: bool = false;
#[derive(Clone)]
pub struct TossPay {
    toss_id: String,
}
impl TossPay {
    pub fn new(toss_id: String) -> Self {
        if unsafe { IS_RUNNING } {
            panic!("Can't create multiple tosspay!");
        }

        unsafe { IS_RUNNING = true }
        let toss_id_clone = toss_id.clone();

        tokio::spawn(async move {
            loop {
                let toss_response = reqwest::Client::new()
                    .get(format!("https://api-public.toss.im/api-public/v3/cashtag/transfer-feed/received/list?inputWord={}", toss_id_clone));
                let json = serde_json::from_str::<TossPayJson>(
                    &toss_response
                        .send()
                        .await
                        .unwrap()
                        .text()
                        .await
                        .unwrap()
                        .replace("null", "\"\""),
                )
                .unwrap();
                unsafe {
                    RES = json;
                }
                thread::sleep(std::time::Duration::from_secs(2));
            }
        });

        TossPay { toss_id }
    }

    pub fn on_donate(&self, f: fn(TossPayData)) {
        let mut old_datas = Vec::new();
        tokio::spawn(async move {
            loop {
                let json = unsafe { RES.clone() };
                let datas = json.success.data;
                if old_datas.clone() != datas.clone() {
                    let send_data = datas.clone();
                    send_data
                        .iter()
                        .filter(|e| old_datas.iter().find(|x| x == e).is_none())
                        .for_each(|x| f(x.to_owned()));
                    // let send_data = datas.clone().iter().filter(|e| old_datas.clone().contains(e));
                }
                old_datas = datas.clone();
                // let rng = rand
                thread::sleep(std::time::Duration::from_secs(2));
            }
        });
    }
    pub fn on_payment(&self, f: fn(TossPayData) -> Result<(), ()>) -> String {
        let code = gen_code();
        let mut fake_code = code.clone();
        unsafe {
            IDS.push(code.clone());
        }
        let mut old_datas = Vec::new();
        thread::spawn(move || 'scan_loop: loop {
            let json = unsafe { RES.clone() };
            let datas = json.success.data;
            if old_datas.clone() != datas.clone() {
                let send_data = datas.clone();
                send_data
                    .iter()
                    .filter(|e| old_datas.iter().find(|x| x == e).is_none())
                    .for_each(|x| {
                        if x.senderDisplayName == fake_code {
                            match f(x.to_owned()) {
                                Ok(_) => {
                                    fake_code = "".to_string();
                                }
                                Err(_) => {}
                            }
                        }
                    });
                if fake_code == "".to_string() {
                    break 'scan_loop;
                }
            }
            old_datas = datas.clone();
            thread::sleep(std::time::Duration::from_secs(2));
        });
        return code.clone();
    }

    pub async fn trace_all(&self) -> mpsc::Receiver<TossPayData> {
        let fake_self = self.clone();
        let (sender, receiver) = mpsc::channel();
        let mut old_datas = Vec::new();
        tokio::spawn(async move {
            loop {
                let json = unsafe { RES.clone() };
                let datas = json.success.data;
                if old_datas.clone() != datas.clone() {
                    let send_data = datas.clone();
                    send_data
                        .iter()
                        .filter(|e| old_datas.iter().find(|x| x == e).is_none())
                        .for_each(|x| {
                            sender.send(x.to_owned()).unwrap();
                        });
                    // let send_data = datas.clone().iter().filter(|e| old_datas.clone().contains(e));
                }
                old_datas = datas.clone();
                // let rng = rand
                thread::sleep(std::time::Duration::from_secs(2));
            }
        });
        receiver
    }
}

#[allow(non_snake_case)]
#[derive(Debug, serde::Serialize, serde::Deserialize, PartialEq, Eq, Clone)]
pub struct TossPayJson {
    pub resultType: String,
    pub success: TossPaySuccess,
}

#[allow(non_snake_case)]
#[derive(Debug, serde::Serialize, serde::Deserialize, PartialEq, Eq, Clone)]
pub struct TossPaySuccess {
    pub nextCursor: String,
    pub data: Vec<TossPayData>,
}

#[allow(non_snake_case)]
#[derive(Debug, serde::Serialize, serde::Deserialize, PartialEq, Eq, Clone)]
pub struct TossPayData {
    pub senderDisplayName: String,
    pub amount: usize,
    pub msg: String,
}

fn gen_code() -> String {
    let mut rng = rand::thread_rng();
    let code = format!(
        "{}{}{}{}{}",
        rng.gen_range(0..10),
        rng.gen_range(0..10),
        rng.gen_range(0..10),
        rng.gen_range(0..10),
        rng.gen_range(0..10)
    );
    if unsafe { IDS.contains(&code) } {
        return gen_code();
    }
    code
}