bugfixes

src/util/discord.rs

@@ -0,0 +1,95 @@
+use std::error::Error;
+use std::fmt::Write as _;
+use std::time::{SystemTime, UNIX_EPOCH};
+
+use serde_json::json;
+
+/// Send a detailed error report to a Discord webhook
+pub async fn send_discord_error_report<T: Error>(
+    error: &T,
+    context: Option<&str>,        // e.g. provider name, URL, query
+    extra_info: Option<&str>,     // any debug info you want
+    file: &str,
+    line: u32,
+    module: &str,
+) {
+    let webhook_url = match std::env::var("DISCORD_WEBHOOK") {
+        Ok(url) => url,
+        Err(_) => return,
+    };
+
+    // Discord embed field limits
+    const MAX_FIELD: usize = 1024;
+
+    let mut error_chain = String::new();
+    let mut current: &dyn Error = error;
+    let mut i = 0;
+    loop {
+        let _ = writeln!(error_chain, "{}. {}", i + 1, current);
+        i += 1;
+        match current.source() {
+            Some(src) => current = src,
+            None => break,
+        }
+    }
+
+    let truncate = |s: &str| {
+        if s.len() > MAX_FIELD {
+            format!("{}…", &s[..MAX_FIELD - 1])
+        } else {
+            s.to_string()
+        }
+    };
+
+    let timestamp = SystemTime::now()
+        .duration_since(UNIX_EPOCH)
+        .map(|d| d.as_secs())
+        .unwrap_or(0);
+
+    let payload = json!({
+        "embeds": [{
+            "title": "🚨 Rust Error Report",
+            "color": 0xE74C3C,
+            "fields": [
+                {
+                    "name": "Error",
+                    "value": truncate(&error.to_string()),
+                    "inline": false
+                },
+                {
+                    "name": "Error Chain",
+                    "value": truncate(&error_chain),
+                    "inline": false
+                },
+                {
+                    "name": "Location",
+                    "value": format!("`{}`:{}\n`{}`", file, line, module),
+                    "inline": false
+                },
+                {
+                    "name": "Context",
+                    "value": truncate(context.unwrap_or("n/a")),
+                    "inline": false
+                },
+                {
+                    "name": "Extra Info",
+                    "value": truncate(extra_info.unwrap_or("n/a")),
+                    "inline": false
+                }
+            ],
+            "footer": {
+                "text": format!("Unix time: {}", timestamp)
+            }
+        }]
+    });
+
+    // Send (never panic)
+    if let Err(e) = wreq::Client::new()
+        .post(webhook_url)
+        .json(&payload)
+        .send()
+        .await
+    {
+        eprintln!("Failed to send Discord error report: {e}");
+    }
+}