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// use std::collections::HashMap;
use serde::{Deserialize,Serialize};

fn default_empty() -> String {
  "/".to_string()
}
fn default_tracedata_items() -> Vec<TraceContent> {
  Vec::new()
}

#[derive(Default,Deserialize,Serialize,Debug,Clone)]
pub struct TraceContent {
    #[serde(default = "default_empty")]
    pub when: String,
    #[serde(default = "default_empty")]
    pub sid: String,
    #[serde(default = "default_empty")]
    pub origin: String,
    #[serde(default = "default_empty")]
    pub trigger: String,
    #[serde(default = "default_empty")]
    pub id: String,
    #[serde(default = "default_empty")]
    pub info: String,
    #[serde(default = "default_empty")]
    pub context: String,
    #[serde(default = "default_empty")]
    pub role: String,
}
impl TraceContent {
    #[allow(dead_code)]
    pub fn to_json(&self) -> String {
        serde_json::to_string(self).unwrap_or_else(|e|{
            println!("Error to convert TraceContent to json: {}",e);
            String::from("")
        })
    }
}

#[derive(Default,Deserialize,Serialize,Debug,Clone)]
pub struct TraceData {
    #[serde(default = "default_empty")]
    pub server: String, 
    #[serde(default = "default_empty")]
    pub timestamp: String, 
    #[serde(default = "default_tracedata_items")]
    pub contents: Vec<TraceContent>,
}
impl TraceData {
    #[allow(dead_code)]
    pub fn contents_to_json(&self) -> Vec<String> {
        self.contents.clone().into_iter().map(|item| item.to_json()).collect()
    }
}