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use directories::ProjectDirs;
use serde::{Deserialize, Serialize};
use std::fmt;
use std::fs;
use std::io::Write;
use std::path::PathBuf;
use std::process::Command;
use std::process::Stdio;
use crate::error::{Error, Result};
use crate::utils;
#[derive(Deserialize, Serialize, Debug, Clone, PartialEq, Eq)]
#[serde(rename_all = "lowercase")]
pub enum SearchEngine {
DuckDuckGo,
Google,
StackExchange,
}
#[derive(Deserialize, Serialize, Debug, Clone, PartialEq, Eq)]
#[serde(default)]
pub struct Config {
pub api_key: Option<String>,
pub limit: u16,
pub lucky: bool,
pub sites: Vec<String>,
pub search_engine: SearchEngine,
pub copy_cmd: Option<String>,
}
impl fmt::Display for SearchEngine {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
let s = match &self {
SearchEngine::DuckDuckGo => "duckduckgo",
SearchEngine::Google => "google",
SearchEngine::StackExchange => "stackexchange",
};
write!(f, "{}", s)
}
}
impl Default for SearchEngine {
fn default() -> Self {
SearchEngine::Google
}
}
// TODO make a friender config file, like the colors.toml below
impl Default for Config {
fn default() -> Self {
Config {
api_key: Some(String::from("8o9g7WcfwnwbB*Qp4VsGsw((")),
limit: 20,
lucky: true,
sites: vec![String::from("stackoverflow")],
search_engine: SearchEngine::default(),
copy_cmd: Some(String::from(if cfg!(target_os = "macos") {
"pbcopy"
} else if cfg!(target_os = "windows") {
"clip"
} else if cfg!(target_os = "linux") {
"xclip -sel clip"
} else {
// this default makes no sense but w/e
"wl-copy"
})),
}
}
}
impl Config {
/// Get user config (writes default if none found)
pub fn new() -> Result<Self> {
let project = Self::project_dir()?;
let dir = project.config_dir();
fs::create_dir_all(&dir)?;
let filename = Self::config_file_path()?;
match utils::open_file(&filename)? {
None => {
let def = Config::default();
def.write()?;
Ok(def)
}
Some(file) => serde_yaml::from_reader(file)
.map_err(|_| Error::MalformedFile(filename.clone()))
.and_then(|cfg: Config| {
if cfg.sites.is_empty() {
Err(Error::MalformedFile(filename))
} else {
Ok(cfg)
}
}),
}
}
// TODO This looks odd when refactoring to associate functions under Config; perhaps this
// shouldn't be a CLI opt? Maybe a generic --save-config based on current opts?
pub fn set_api_key(key: String) -> Result<()> {
let mut cfg = Self::new()?;
cfg.api_key = Some(key);
cfg.write()
}
/// Get project directory
pub fn project_dir() -> Result<ProjectDirs> {
ProjectDirs::from("io", "Sam Tay", "so").ok_or(Error::ProjectDir)
}
// TODO consider switching to .toml to be consistent with colors.toml
pub fn config_file_path() -> Result<PathBuf> {
Ok(Self::project_dir()?.config_dir().join("config.yml"))
}
/// Get theme file path; if it doesn't exist yet, create it with defaults.
pub fn theme_file_path() -> Result<PathBuf> {
let name = Self::project_dir()?.config_dir().join("colors.toml");
if !name.as_path().exists() {
let mut file = utils::create_file(&name)?;
file.write_all(include_bytes!("../themes/default.toml"))?;
}
Ok(name)
}
fn write(&self) -> Result<()> {
let filename = Self::config_file_path()?;
let file = utils::create_file(&filename)?;
Ok(serde_yaml::to_writer(file, &self)?)
}
pub fn get_copy_cmd(&self) -> Option<Command> {
let copy_cmd_str = self.copy_cmd.as_ref()?;
let mut pieces = copy_cmd_str.split_whitespace();
let mut cmd = Command::new(pieces.next()?);
cmd.args(pieces).stdin(Stdio::piped());
Some(cmd)
}
}
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