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//! Edit command
use crate::{Error, Result};
use anyhow::anyhow;
use clap::Args;
use std::collections::HashMap;
/// Edit command arguments
#[derive(Args)]
#[command(group = clap::ArgGroup::new("question-id").args(&["id", "daily"]).required(true))]
pub struct EditArgs {
/// Question id
#[arg(value_parser = clap::value_parser!(i32))]
pub id: Option<i32>,
/// Edit today's daily challenge
#[arg(short = 'd', long)]
pub daily: bool,
/// Edit with specific language
#[arg(short, long)]
pub lang: Option<String>,
}
impl EditArgs {
/// `edit` handler
pub async fn run(&self) -> Result<()> {
use crate::{Cache, cache::models::Question};
use std::fs::File;
use std::io::Write;
use std::path::Path;
let cache = Cache::new()?;
let daily_id = if self.daily {
Some(cache.get_daily_problem_id().await?)
} else {
None
};
let id = self.id.or(daily_id).ok_or(Error::NoneError)?;
let problem = cache.get_problem(id)?;
let mut conf = cache.to_owned().0.conf;
let test_flag = conf.code.test;
let p_desc_comment = problem.desc_comment(&conf);
// condition language
if let Some(ref lang) = self.lang {
conf.code.lang = lang.clone();
conf.sync()?;
}
let lang = &conf.code.lang;
let path = crate::helper::code_path(&problem, Some(lang.to_owned()))?;
if !Path::new(&path).exists() {
let mut qr = serde_json::from_str(&problem.desc);
if qr.is_err() {
qr = Ok(cache.get_question(id).await?);
}
let question: Question = qr?;
let mut file_code = File::create(&path)?;
let question_desc = question.desc_comment(&conf) + "\n";
let test_path = crate::helper::test_cases_path(&problem)?;
let mut flag = false;
for d in question.defs.0 {
if d.value == *lang {
flag = true;
if conf.code.comment_problem_desc {
file_code.write_all(p_desc_comment.as_bytes())?;
file_code.write_all(question_desc.as_bytes())?;
}
if let Some(inject_before) = &conf.code.inject_before {
for line in inject_before {
file_code.write_all((line.to_string() + "\n").as_bytes())?;
}
}
if conf.code.edit_code_marker {
file_code.write_all(
(conf.code.comment_leading.clone()
+ " "
+ &conf.code.start_marker
+ "\n")
.as_bytes(),
)?;
}
file_code.write_all((d.code.to_string() + "\n").as_bytes())?;
if conf.code.edit_code_marker {
file_code.write_all(
(conf.code.comment_leading.clone()
+ " "
+ &conf.code.end_marker
+ "\n")
.as_bytes(),
)?;
}
if let Some(inject_after) = &conf.code.inject_after {
for line in inject_after {
file_code.write_all((line.to_string() + "\n").as_bytes())?;
}
}
if test_flag {
let mut file_tests = File::create(&test_path)?;
file_tests.write_all(question.all_cases.as_bytes())?;
}
}
}
// if language is not found in the list of supported languges clean up files
if !flag {
std::fs::remove_file(&path)?;
if test_flag {
std::fs::remove_file(&test_path)?;
}
return Err(
anyhow!("This question doesn't support {lang}, please try another").into(),
);
}
}
// Get arguments of the editor
//
// for example:
//
// ```toml
// [code]
// editor = "emacsclient"
// editor_args = [ "-n", "-s", "doom" ]
// ```
//
// ```rust
// Command::new("emacsclient").args(&[ "-n", "-s", "doom", "<problem>" ])
// ```
let mut args: Vec<String> = Default::default();
if let Some(editor_args) = conf.code.editor_args {
args.extend_from_slice(&editor_args);
}
// Set environment variables for editor
//
// for example:
//
// ```toml
// [code]
// editor = "nvim"
// editor_envs = [ "XDG_DATA_HOME=...", "XDG_CONFIG_HOME=...", "XDG_STATE_HOME=..." ]
// ```
//
// ```rust
// Command::new("nvim").envs(&[ ("XDG_DATA_HOME", "..."), ("XDG_CONFIG_HOME", "..."), ("XDG_STATE_HOME", "..."), ]);
// ```
let mut envs: HashMap<String, String> = Default::default();
if let Some(editor_envs) = &conf.code.editor_envs {
for env in editor_envs.iter() {
let parts: Vec<&str> = env.split('=').collect();
if parts.len() == 2 {
let name = parts[0].trim();
let value = parts[1].trim();
envs.insert(name.to_string(), value.to_string());
} else {
return Err(anyhow!("Invalid editor environment variable: {env}").into());
}
}
}
args.push(path);
std::process::Command::new(conf.code.editor)
.envs(envs)
.args(args)
.status()?;
Ok(())
}
}