an.tsouchlos/brittling
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Clean up/fix error handling in main

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This commit is contained in:
Andreas Tsouchlos 2025-12-31 16:32:48 +02:00
parent 2e942a9b31
commit a168c00ee7
1 changed files with 25 additions and 58 deletions
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77
src/main.rs
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@ -1,64 +1,43 @@
mod app; mod app;
mod crossterm;
mod literature; mod literature;
mod ui; mod ui;
use clap::Parser;
use log::error; use log::error;
use serde_json; use serde_json;
use std::{env, error::Error, fs::OpenOptions};
use crate::app::AppState; use crate::app::AppState;
// use crate::snowballing::get_citing_papers; fn deserialize_savefile(filename: &String) -> Result<AppState, Box<dyn Error>> {
// #[tokio::main] if !std::fs::exists(filename)? {
// async fn main() -> Result<(), reqwest::Error> { return Ok(AppState::default());
// let publications = get_citing_papers("w2963127785", "an.tsouchlos@gmail.com").await?; }
//
// let app = App {
// pending_publications: publications,
// ..Default::default()
// };
//
// if let Ok(serialized) = serde_json::to_string_pretty(&app) {
// std::fs::write("temp.json", serialized)
// .expect("We can't really deal with io errors ourselves");
// }
//
// Ok(())
// }
fn deserialize_savefile( let app_state: AppState =
filename: &String, serde_json::from_str::<AppState>(&std::fs::read_to_string(filename)?)?;
) -> Result<AppState, serde_json::Error> {
match std::fs::read_to_string(filename) { Ok(app_state)
Ok(content) => {
let app: AppState = serde_json::from_str(&content)?;
Ok(app)
}
Err(_) => {
let app = AppState::default();
if let Ok(serialized) = serde_json::to_string_pretty(&app) {
let _ = std::fs::write(filename, serialized);
}
Ok(app)
}
}
} }
fn serialize_savefile( fn serialize_savefile(
app: &AppState, app: &AppState,
filename: &String, filename: &String,
) -> Result<(), serde_json::Error> { ) -> Result<(), Box<dyn Error>> {
if let Ok(serialized) = serde_json::to_string_pretty(&app) { let serialized = serde_json::to_string_pretty(&app)?;
std::fs::write(filename, serialized) Ok(std::fs::write(filename, serialized)?)
.expect("We can't really deal with io errors ourselves"); }
}
async fn run(args: &Args) -> Result<(), Box<dyn Error>> {
let starting_app_state = deserialize_savefile(&args.savefile)?;
let final_app_state = crate::crossterm::run(starting_app_state).await?;
serialize_savefile(&final_app_state, &args.savefile)?;
Ok(()) Ok(())
} }
use clap::Parser;
mod crossterm;
use std::{env, error::Error, fs::OpenOptions};
#[derive(Parser)] #[derive(Parser)]
#[command(name = "Brittling")] #[command(name = "Brittling")]
#[command(about = "A tool to perform snowballing for literature studies", long_about = None)] #[command(about = "A tool to perform snowballing for literature studies", long_about = None)]
@ -89,21 +68,9 @@ async fn main() {
))) )))
.init(); .init();
match run(&args).await { if let Err(e) = run(&args).await {
Err(e) => {
error!("Application error: {}", e); error!("Application error: {}", e);
print!("{e:?}"); print!("{e:?}");
std::process::exit(1); std::process::exit(1);
} }
_ => {}
}
}
async fn run(args: &Args) -> Result<(), Box<dyn Error>> {
let starting_app_state = deserialize_savefile(&args.savefile)?;
let final_app_state = crate::crossterm::run(starting_app_state).await?;
serialize_savefile(&final_app_state, &args.savefile)?;
Ok(())
} }