63 lines
1.4 KiB
Rust
63 lines
1.4 KiB
Rust
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use std::error::Error;
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use std::fmt::{self, Display, Formatter};
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use std::convert::From;
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use std::fs::File;
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use std::io::{self, BufReader, ErrorKind};
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use serde_yaml;
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use currency::Currency;
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pub fn load_config(filename: &str) -> Result<Vec<Currency>, ConfigError> {
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let config_file = File::open(filename)?;
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let mut configs: Vec<Currency> = serde_yaml::from_reader(BufReader::new(config_file))?;
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configs.sort_by(|a, b| b.cmp(a));
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Ok(configs)
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}
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pub fn default_config() -> Vec<Currency> {
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vec![
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Currency::new("platinum", 1000000, "p", None),
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Currency::new("gold", 10000, "g", None),
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Currency::new("silver", 100, "s", None),
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Currency::new("copper", 1, "c", None),
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]
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}
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#[derive(Debug)]
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pub struct ConfigError {
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desc: String,
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pub kind: ErrorKind,
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}
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impl Display for ConfigError {
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fn fmt(&self, f: &mut Formatter) -> fmt::Result {
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write!(f, "Sterling Error: {}", self.desc)
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}
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}
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impl Error for ConfigError {
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fn description(&self) -> &str {
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&self.desc
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}
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}
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impl From<io::Error> for ConfigError {
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fn from(error: io::Error) -> Self {
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ConfigError {
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desc: error.description().to_owned(),
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kind: error.kind(),
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}
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}
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}
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impl From<serde_yaml::Error> for ConfigError {
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fn from(error: serde_yaml::Error) -> Self {
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ConfigError {
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desc: error.description().to_owned(),
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kind: ErrorKind::Other,
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}
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}
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}
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