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use std::collections::HashMap;
use std::str::FromStr;
use serde_json;
use serde_json::Value;
use coinnect::Credentials;
use exchange::Exchange;
use helpers;
use error::*;
use std::fs::File;
use std::io::Read;
use std::path::PathBuf;
#[derive(Debug, Clone)]
pub struct PoloniexCreds {
exchange: Exchange,
name: String,
data: HashMap<String, String>,
}
impl PoloniexCreds {
pub fn new(name: &str, api_key: &str, api_secret: &str) -> Self {
let mut creds = PoloniexCreds {
data: HashMap::new(),
exchange: Exchange::Poloniex,
name: if name.is_empty() {
"PoloniexClient".to_string()
} else {
name.to_string()
},
};
creds
.data
.insert("api_key".to_string(), api_key.to_string());
creds
.data
.insert("api_secret".to_string(), api_secret.to_string());
creds
}
pub fn new_from_file(name: &str, path: PathBuf) -> Result<Self> {
let mut f = File::open(&path)?;
let mut buffer = String::new();
f.read_to_string(&mut buffer)?;
let data: Value = serde_json::from_str(&buffer)?;
let json_obj = data.as_object()
.ok_or_else(|| ErrorKind::BadParse)?
.get(name)
.ok_or_else(|| ErrorKind::MissingField(name.to_string()))?;
let api_key = helpers::get_json_string(json_obj, "api_key")?;
let api_secret = helpers::get_json_string(json_obj, "api_secret")?;
let exchange = {
let exchange_str = helpers::get_json_string(json_obj, "exchange")?;
Exchange::from_str(exchange_str)
.chain_err(|| ErrorKind::InvalidFieldValue("exchange".to_string()))?
};
if exchange != Exchange::Poloniex {
return Err(ErrorKind::InvalidConfigType(Exchange::Poloniex, exchange).into());
}
Ok(PoloniexCreds::new(name, api_key, api_secret))
}
}
impl Credentials for PoloniexCreds {
fn get(&self, key: &str) -> Option<String> {
if let Some(res) = self.data.get(key) {
Some(res.clone())
} else {
None
}
}
fn name(&self) -> String {
self.name.clone()
}
fn exchange(&self) -> Exchange {
self.exchange
}
}