Initial commit

src/main.rs

@@ -1,3 +1,108 @@
-fn main() {
-    println!("Hello, world!");
+mod telemetry;
+
+use crate::telemetry::setup_logger;
+use color_eyre::{
+    Result,
+    eyre::{Context, eyre},
+};
+use dotenv::dotenv;
+use regex::Regex;
+use std::{fs::read_dir, process::Stdio};
+use teloxide::{
+    Bot,
+    prelude::Requester,
+    respond,
+    types::{ChatId, InputFile, Message},
+};
+use tempfile::tempdir;
+use tokio::process::Command;
+use tracing::error;
+
+#[tokio::main]
+async fn main() -> Result<()> {
+    dotenv().ok();
+    color_eyre::install()?;
+    setup_logger()?;
+
+    let bot = Bot::from_env();
+
+    teloxide::repl(bot, |bot: Bot, msg: Message| async move {
+        if let Some(text) = msg.text() {
+            if let Some(shortcode) = extract_instagram_shortcode(text) {
+                let bot_cloned = bot.clone();
+                let chat = msg.chat.id;
+
+                tokio::spawn(async move {
+                    if let Err(e) = fetch_and_send(&bot_cloned, chat, &shortcode).await {
+                        error!("error fetching/sending: {:?}", e);
+                        let _ = bot_cloned
+                            .send_message(chat, "Failed to fetch Instagram media.")
+                            .await;
+                    }
+                });
+            }
+        }
+        respond(())
+    })
+    .await;
+
+    Ok(())
+}
+
+fn extract_instagram_shortcode(text: &str) -> Option<String> {
+    let re = Regex::new(
+        r"https?://(?:www\.)?(?:instagram\.com|instagr\.am)/(?:p|reel|tv)/([A-Za-z0-9_-]+)",
+    )
+    .unwrap();
+    re.captures(text)
+        .and_then(|cap| cap.get(1).map(|m| m.as_str().to_string()))
+}
+
+async fn fetch_and_send(bot: &Bot, chat_id: ChatId, shortcode: &str) -> Result<()> {
+    let dir = tempdir().context("create tempdir")?;
+    let dir_path = dir.path().to_path_buf();
+
+    let target = format!("--{}", shortcode);
+    let status = Command::new("instaloader")
+        .arg(dir_path.to_string_lossy().as_ref())
+        .arg("--no-metadate-json")
+        .arg("--no-compress-json")
+        // .arg("--quiet")
+        .arg(&target)
+        .stdout(Stdio::null())
+        .stderr(Stdio::piped())
+        .status()
+        .await
+        .context("runnning instaloader")?;
+
+    if !status.success() {
+        error!("instaloader exit: {:?}", status);
+        return Err(eyre!("instaloader failed"));
+    }
+    let mut media_files = Vec::new();
+
+    for entry in read_dir(&dir_path)? {
+        let p = entry?.path();
+        if p.is_file() {
+            let ext = p.extension().and_then(|s| s.to_str()).unwrap_or("");
+            if matches!(ext, "jpg" | "jpeg" | "mp4" | "webm") {
+                media_files.push(p);
+            }
+        }
+    }
+
+    if media_files.is_empty() {
+        return Err(eyre!("no media found"));
+    }
+
+    let first = &media_files[0];
+    let input = InputFile::file(first.clone());
+
+    let ext = first.extension().and_then(|s| s.to_str()).unwrap_or("");
+    if matches!(ext, "jpg" | "jpeg") {
+        bot.send_photo(chat_id, input).await?;
+    } else {
+        bot.send_video(chat_id, input).await?;
+    }
+    Ok(())
 }