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use std::sync::{Arc};
use std::collections::HashMap;
use tokio::sync::Mutex;


pub struct HttpErrorStats {
    pub(crate) errors: Arc<Mutex<HashMap<(u16, String, String), u32>>>,
}

impl HttpErrorStats {
    pub(crate) fn new() -> Self {
        HttpErrorStats {
            errors: Arc::new(Mutex::new(HashMap::new())),
        }
    }

    // 增加一个错误和对应的出现次数
    pub(crate) async fn increment(&self, status_code: u16, error_message: String, url: String) {
        let mut errors = self.errors.lock().await;
        *errors.entry((status_code, error_message, url)).or_insert(0) += 1;
    }
}