astrox_macros 0.2.13

add user management and canister relation management for canister
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use ic_cdk::export::candid::{CandidType};
use serde::Serialize;


#[derive(Clone, Debug, CandidType, Serialize)]
pub struct Log {
  pub logs: Vec<String>,
}

impl Log {
  pub fn new() -> Self {
    Log { logs: vec![] }
  }

  pub fn log_add(&mut self, log: String) {
    self.logs.insert(0, log);
    if self.logs.len() > 1000 {
      self.log_clear(500)
    }
  }

  pub fn log_list(&self, amount: usize) -> Vec<String>{
    self.logs[0.. amount].to_vec()
  }

  pub fn log_clear(&mut self, remain: usize) {
    self.logs.truncate(remain);
  }
}