103 lines
4.0 KiB
Rust
103 lines
4.0 KiB
Rust
use crate::utils;
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use crate::structs;
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use std::env;
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use std::sync::Arc;
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use std::path::Path;
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use std::process::exit;
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use tokio::sync::Mutex;
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use tokio::task::JoinHandle;
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use std::fs::{rename, create_dir, write};
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extern crate tokio;
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extern crate reqwest;
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const DOWNLOAD_WORKERS: usize = 5;
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pub async fn run(args: env::Args) {
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let sauces = utils::get_arg_sauces(args).unwrap();
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if sauces.len() < 1 {
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eprintln!("Missing sauce(s)");
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exit(1);
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}
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let client = reqwest::Client::new();
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let mut pages_vec: Vec<(String, String)> = Vec::new();
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{
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let mut handles: Vec<JoinHandle<structs::GalleryInfoSuccess>> = Vec::with_capacity(sauces.len());
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let mut sauce_info_vec: Vec<structs::GalleryInfoSuccess> = Vec::with_capacity(sauces.len());
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for sauce in sauces {
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let cloned_client = client.clone();
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handles.push(tokio::spawn(async move {
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match utils::get_sauce_info(cloned_client, sauce).await.unwrap() {
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structs::GalleryInfo::Info(sauce_info) => sauce_info,
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structs::GalleryInfo::Error(sauce_error) => panic!("{} returned: {}", sauce, sauce_error.error)
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}
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}));
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}
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for handle in handles {
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sauce_info_vec.push(handle.await.unwrap());
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}
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for sauce_info in sauce_info_vec {
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let base_path = sauce_info.id.to_string();
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let base_path = Path::new(&base_path);
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match create_dir(base_path) {
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Ok(()) => write(base_path.join("info.txt"), format!("{}\n", utils::human_sauce_info(&sauce_info))).unwrap(),
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Err(err) => match err.kind() {
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std::io::ErrorKind::AlreadyExists => (),
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_ => panic!("Got a weird error while creating dir: {}", err)
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}
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};
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let mut page_num: i32 = 1;
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for page in sauce_info.images.pages {
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let file_ext = match page.t.as_str() {
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"j" => ".jpg",
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"p" => ".png",
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"g" => ".gif",
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_ => panic!("Unknown extension type: {}", page.t)
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};
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let mut file_name = page_num.to_string();
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file_name.push_str(file_ext);
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let file_path = base_path.join(&file_name);
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if !file_path.exists() {
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pages_vec.push((
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String::from(file_path.to_str().unwrap()),
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format!("https://i.nhentai.net/galleries/{}/{}",
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sauce_info.media_id,
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file_name)
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));
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}
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page_num += 1;
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}
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}
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}
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let mut handles = Vec::with_capacity(DOWNLOAD_WORKERS);
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let mutex = Arc::new(Mutex::new(pages_vec));
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for worker_id in 0..DOWNLOAD_WORKERS {
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let tcloned_client = client.clone();
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let tcloned_mutex = Arc::clone(&mutex);
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handles.push(tokio::spawn(async move {
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eprintln!("[DW{}] Up!", worker_id);
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loop {
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let cloned_client = tcloned_client.clone();
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let cloned_mutex = Arc::clone(&tcloned_mutex);
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let mut pages_vec = cloned_mutex.lock().await;
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if pages_vec.len() < 1 {
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eprintln!("[DW{}] Down!", worker_id);
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break;
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}
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let (file_path, url) = pages_vec.remove(0);
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drop(pages_vec);
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eprintln!("[DW{}] Downloading {} to {}", worker_id, url, file_path);
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let mut tmp_file_path = file_path.clone();
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tmp_file_path.push_str(".tmp");
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utils::download_file(cloned_client, &url, &tmp_file_path).await.unwrap();
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rename(&tmp_file_path, &file_path).unwrap();
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eprintln!("[DW{}] {} downloaded", worker_id, file_path);
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}
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}));
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}
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for handle in handles {
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handle.await.unwrap();
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}
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}
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