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use directories::ProjectDirs;
use serde::{Deserialize, Serialize};
use std::fs;
use std::fs::File;
use crate::error::{Error, Result};
#[derive(Deserialize, Serialize, Debug)]
pub struct Config {
pub api_key: Option<String>,
pub limit: u16,
pub site: String,
}
impl Default for Config {
fn default() -> Self {
Config {
api_key: None,
limit: 20,
site: String::from("stackoverflow"),
}
}
}
/// Get user config (writes default if none found)
pub fn user_config() -> Result<Config> {
let project = project_dir()?;
let dir = project.config_dir();
fs::create_dir_all(&dir).map_err(|_| Error::create_dir(&dir.to_path_buf()))?;
let filename = dir.join("config.yml");
match File::open(&filename) {
Err(_) => {
let file = File::create(&filename).map_err(|_| Error::create_file(&filename))?;
let def = Config::default();
serde_yaml::to_writer(file, &def).map_err(|_| Error::write_file(&filename))?;
Ok(def)
}
Ok(file) => serde_yaml::from_reader(file).map_err(|_| Error::malformed(&filename)),
}
}
/// Get project directory
pub fn project_dir() -> Result<ProjectDirs> {
ProjectDirs::from("io", "Sam Tay", "so").ok_or_else(|| {
Error::os(
"Couldn't find a suitable project directory to store cache and configuration;\n\
this application may not be supported on your operating system.",
)
})
}
#[cfg(test)]
mod tests {
// TODO test malformed filter string
// TODO test malformed api key
// for both, detect situation and print helpful error message
#[test]
fn test_merge_configs() {
assert!(true)
}
}
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