From 09dba402cd21b6b66d62e8a17eb89478c7d30553 Mon Sep 17 00:00:00 2001
From: yggverse <yggverse@project>
Date: Mon, 8 Sep 2025 16:29:52 +0300
Subject: [PATCH] implement files list

---
 src/format.rs | 46 ++++++++++++++++++++++++----------------------
 src/main.rs   | 42 ++++++++++++++++++++++++++++++++++++++++--
 2 files changed, 64 insertions(+), 24 deletions(-)

diff --git a/src/format.rs b/src/format.rs
index 64a706b..eafbd8a 100644
--- a/src/format.rs
+++ b/src/format.rs
@@ -7,31 +7,33 @@ pub fn files(meta: &TorrentMetaV1Owned) -> String {
     format!("{total} {}", total.plurify(&["file", "files", "files"]))
 }
 
-pub fn size(meta: &TorrentMetaV1Owned) -> String {
-    fn s(value: u64) -> String {
-        const KB: f32 = 1024.0;
-        const MB: f32 = KB * KB;
-        const GB: f32 = MB * KB;
+pub fn size(value: u64) -> String {
+    const KB: f32 = 1024.0;
+    const MB: f32 = KB * KB;
+    const GB: f32 = MB * KB;
 
-        let f = value as f32;
+    let f = value as f32;
 
-        if f < KB {
-            format!("{value} B")
-        } else if f < MB {
-            format!("{:.2} KB", f / KB)
-        } else if f < GB {
-            format!("{:.2} MB", f / MB)
-        } else {
-            format!("{:.2} GB", f / GB)
-        }
+    if f < KB {
+        format!("{value} B")
+    } else if f < MB {
+        format!("{:.2} KB", f / KB)
+    } else if f < GB {
+        format!("{:.2} MB", f / MB)
+    } else {
+        format!("{:.2} GB", f / GB)
     }
-    s(meta
-        .info
-        .files
-        .as_ref()
-        .map(|files| files.iter().map(|file| file.length).sum::<u64>())
-        .unwrap_or_default()
-        + meta.info.length.unwrap_or_default())
+}
+
+pub fn total(meta: &TorrentMetaV1Owned) -> String {
+    size(
+        meta.info
+            .files
+            .as_ref()
+            .map(|files| files.iter().map(|file| file.length).sum::<u64>())
+            .unwrap_or_default()
+            + meta.info.length.unwrap_or_default(),
+    )
 }
 
 pub fn magnet(meta: &TorrentMetaV1Owned, trackers: Option<&Vec<Url>>) -> String {
diff --git a/src/main.rs b/src/main.rs
index a734526..8f8fee2 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -16,6 +16,7 @@ use std::{
     fs::File,
     io::{Read, Write},
     net::{SocketAddr, TcpListener, TcpStream},
+    path::PathBuf,
     str::FromStr,
     sync::Arc,
     thread,
@@ -301,7 +302,7 @@ fn index(config: &Config, public: &Public, page: Option<usize>) -> Result<String
         b.push(format!(
             "{} • {} • {}\n",
             torrent.time.format(&config.date),
-            format::size(&i),
+            format::total(&i),
             format::files(&i),
         ))
     }
@@ -335,6 +336,19 @@ fn index(config: &Config, public: &Public, page: Option<usize>) -> Result<String
 }
 
 fn info(config: &Config, torrent: Torrent) -> Result<String> {
+    struct File {
+        path: Option<PathBuf>,
+        length: u64,
+    }
+    impl File {
+        pub fn path(&self) -> String {
+            self.path
+                .as_ref()
+                .map(|p| p.to_string_lossy().into())
+                .unwrap_or("?".into())
+        }
+    }
+
     let i: TorrentMetaV1Owned = torrent_from_bytes(&torrent.bytes)?;
 
     let mut b = Vec::new();
@@ -351,7 +365,7 @@ fn info(config: &Config, torrent: Torrent) -> Result<String> {
     b.push(format!(
         "{} • {} • {}\n",
         torrent.time.format(&config.date),
-        format::size(&i),
+        format::total(&i),
         format::files(&i),
     ));
 
@@ -360,5 +374,29 @@ fn info(config: &Config, torrent: Torrent) -> Result<String> {
         format::magnet(&i, config.tracker.as_ref())
     ));
 
+    if let Some(files) = i.info.files.map(|files| {
+        let mut b = Vec::with_capacity(files.len());
+        for f in files {
+            let mut p = std::path::PathBuf::new();
+            b.push(File {
+                length: f.length,
+                path: match f.full_path(&mut p) {
+                    Ok(()) => Some(p),
+                    Err(e) => {
+                        warn!("Filename decode error: {e}");
+                        None
+                    }
+                },
+            })
+        }
+        b.sort_by(|a, b| a.path.cmp(&b.path)); // @TODO optional
+        b
+    }) {
+        b.push("## Files".into());
+        for file in files {
+            b.push(format!("* {} ({})", file.path(), format::size(file.length)));
+        }
+    }
+
     Ok(b.join("\n"))
 }