jlib 0.0.1

A lightweight blockchain lib.
Documentation 
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#![allow(unused)]

use serde_json::json;
use serde_json::{Value};
use serde::{Deserialize, Serialize};
use serde_json::Result;
use std::any::Any;

use crate::message::common::command_trait::CommandConversion;

/*
@4.2创建连接
SubscribeCommand 请求格式
id: u64
command: String
streams: Vec<String>
值分别为(固定值): 0, "subscribe", ["ledger","server","transactions"]
*/
#[derive(Serialize, Deserialize)]
pub struct SubscribeCommand {
    #[serde(rename="id")]
    id: u64,

    #[serde(rename="command")]
    command: String,

    #[serde(rename="streams")]
    streams: Vec<String>,
}

impl SubscribeCommand {
    //应对以后变动，先实现一个有参数到方法
    pub fn with_params(id: u64, command: String, streams: Vec<String>) -> Box<Self> {
        Box::new( SubscribeCommand {
            id: id,
            command: command,
            streams: streams,
        } )
    }
}

impl CommandConversion for SubscribeCommand {
    type T = SubscribeCommand;
    fn to_string(&self) -> Result<String> {
        // let json = json!({ "id": "0", "command": "subscribe" , "streams" : ["ledger","server","transactions"]});
        // let compact = format!("{}", json);

        //https://crates.io/crates/serde_json
        // Serialize it to a JSON string.
        let j = serde_json::to_string(&self)?;

        // Print, write to a file, or send to an HTTP server.
        Ok(j)
    }

    fn box_to_raw(&self) -> &dyn Any {
        // if let Ok(x) = value.downcast::<T>() {
        //     x
        // }

        self
    }

    // fn to_concrete<T>(&self) -> T {
    //     let def: Box<dyn CommandConversion> = Box::new(self);
    //     let b: &SubscribeCommand = match def.box_to_raw().downcast_ref::<SubscribeCommand>() {
    //         Some(b) => b,
    //         None => panic!("&a isn't a B!"),
    //     };

    //     b
    // }
}

//实现default方法
impl Default for SubscribeCommand {
    fn default() -> Self {
        SubscribeCommand {
            id: 0,
            command: "subscribe".to_string(),
            streams: vec!["ledger".to_string(),"server".to_string(),"transactions".to_string()],
        }
    }
}

/*
SubscribeResponse 数据格式
*/
#[derive(Serialize, Deserialize, Debug)]
pub struct SubscribeResponse {
    #[serde(rename="fee_base")]
    pub fee_base: u64,

    #[serde(rename="fee_ref")]
    fee_ref: u64,

    #[serde(rename="hostid")]
    hostid: Option<String>,

    #[serde(rename="ledger_hash")]
    ledger_hash: String,

    #[serde(rename="ledger_index")]
    ledger_index: u64,

    #[serde(rename="ledger_time")]
    ledger_time: u64,

    #[serde(rename="load_base")]
    load_base: Option<u64>,

    #[serde(rename="load_factor")]
    load_factor: Option<u64>,

    #[serde(rename="pubkey_node")]
    pubkey_node: Option<String>,

    #[serde(rename="random")]
    random: Option<String>,

    #[serde(rename="reserve_base")]
    reserve_base: u64,

    #[serde(rename="reserve_inc")]
    reserve_inc: u64,

    #[serde(rename="server_status")]
    server_status: Option<String>,

    #[serde(rename="validated_ledgers")]
    validated_ledgers: String,

    #[serde(rename="txn_count")]
    txn_count: Option<u64>,

    #[serde(rename="type")]
    ttype: Option<String>,

}
// impl SubscribeResponse {
//     pub fn with_params(fee_base: u64, fee_ref: u64, hostid: String, ledger_hash: String, ledger_index: u64, ledger_time: u64,
//                        load_base: u64, load_factor: u64, pubkey_node: String, random: String, reserve_base: u64, reserve_inc: u64,
//                        server_status: String, validated_ledgers: String) -> Box<Self> {
//
//         Box::new( SubscribeResponse {
//             fee_base: fee_base,
//             fee_ref: fee_ref,
//             hostid: hostid,
//             ledger_hash: ledger_hash,
//             ledger_index: ledger_index,
//             ledger_time: ledger_time,
//             load_base: load_base,
//             load_factor: load_factor,
//             pubkey_node: pubkey_node,
//             random: random,
//             reserve_base: reserve_base,
//             reserve_inc: reserve_inc,
//             server_status: server_status,
//             validated_ledgers: validated_ledgers,
//         })
//     }
// }