From 0044d2f2efeddc8c2d682680f0fd8f5989d0a0c6 Mon Sep 17 00:00:00 2001
From: gakaki <gakaki@gmail.com>
Date: Sat, 2 Mar 2024 02:00:45 +0800
Subject: [PATCH] =?UTF-8?q?=F0=9F=8E=A8=20=20display=20static=20file=20siz?=
 =?UTF-8?q?e=20to=20mb=20kb=20gb=20tb=20pb=20eb=20(#709)?=
MIME-Version: 1.0
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Content-Transfer-Encoding: 8bit

---
 crates/serve-static/src/dir.rs | 51 +++++++++++++++++++++++++++++++++-
 1 file changed, 50 insertions(+), 1 deletion(-)

diff --git a/crates/serve-static/src/dir.rs b/crates/serve-static/src/dir.rs
index c3cceaa20..3a5a9e53f 100644
--- a/crates/serve-static/src/dir.rs
+++ b/crates/serve-static/src/dir.rs
@@ -503,6 +503,29 @@ fn list_xml(current: &CurrentInfo) -> String {
     ftxt.push_str("</list>");
     ftxt
 }
+fn human_size(x: u64) -> String {
+    let unit = 1000; // mac unix 1000 windows 1024
+
+    let units = ["bytes", "KB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB"];
+    let mut l = 0;
+    let mut n_float = 0.00; // just for integer part
+
+    let mut n = x;
+    while n >= unit && l < units.len() {
+        n_float = (n as f64) / (unit as f64);
+        n /= unit;
+        l += 1;
+    }
+
+    let part_integer = format!("{}", n);
+    let mut res = format!("{}", part_integer);
+    if n_float.fract() != 0.0 {
+        let s = format!("{}", n_float.fract());
+        let substring = &s[2..3]; // 0.99 get 9
+        res = format!("{}.{}", part_integer, substring)
+    }
+    format!("{} {}", res, units[l]) // integer part add digit
+}
 fn list_html(current: &CurrentInfo) -> String {
     fn header_links(path: &str) -> String {
         let segments = path.trim_start_matches('/').trim_end_matches('/').split('/');
@@ -557,7 +580,7 @@ fn list_html(current: &CurrentInfo) -> String {
                 encode_url_path(&file.name),
                 file.name,
                 file.modified.format(&format).expect("format time failed"),
-                file.size
+                human_size(file.size)
             )
             .ok();
         }
@@ -611,3 +634,29 @@ const HTML_STYLE: &str = r#"
 const DIR_ICON: &str = r#"<svg aria-label="Directory" data-icon="dir" width="20" height="20" viewBox="0 0 512 512" version="1.1" role="img"><path fill="currentColor" d="M464 128H272l-64-64H48C21.49 64 0 85.49 0 112v288c0 26.51 21.49 48 48 48h416c26.51 0 48-21.49 48-48V176c0-26.51-21.49-48-48-48z"></path></svg>"#;
 const FILE_ICON: &str = r#"<svg aria-label="File" data-icon="file" width="20" height="20" viewBox="0 0 384 512" version="1.1" role="img"><path d="M369.9 97.9L286 14C277 5 264.8-.1 252.1-.1H48C21.5 0 0 21.5 0 48v416c0 26.5 21.5 48 48 48h288c26.5 0 48-21.5 48-48V131.9c0-12.7-5.1-25-14.1-34zM332.1 128H256V51.9l76.1 76.1zM48 464V48h160v104c0 13.3 10.7 24 24 24h104v288H48z"/></svg>"#;
 const HOME_ICON: &str = r#"<svg aria-hidden="true" data-icon="home" viewBox="0 0 576 512"><path fill="currentColor" d="M280.37 148.26L96 300.11V464a16 16 0 0 0 16 16l112.06-.29a16 16 0 0 0 15.92-16V368a16 16 0 0 1 16-16h64a16 16 0 0 1 16 16v95.64a16 16 0 0 0 16 16.05L464 480a16 16 0 0 0 16-16V300L295.67 148.26a12.19 12.19 0 0 0-15.3 0zM571.6 251.47L488 182.56V44.05a12 12 0 0 0-12-12h-56a12 12 0 0 0-12 12v72.61L318.47 43a48 48 0 0 0-61 0L4.34 251.47a12 12 0 0 0-1.6 16.9l25.5 31A12 12 0 0 0 45.15 301l235.22-193.74a12.19 12.19 0 0 1 15.3 0L530.9 301a12 12 0 0 0 16.9-1.6l25.5-31a12 12 0 0 0-1.7-16.93z"></path></svg>"#;
+
+#[cfg(test)]
+mod tests {
+    use crate::dir::human_size;
+
+    #[tokio::test]
+    async fn test_convert_bytes_to_units() {
+        println!("{}", human_size(98595176));// 98.59 MB on mac
+
+        let unit = 1000;
+        println!("{}", human_size(unit));                   // 1 KB
+        println!("{}", human_size(unit - 1));            // 1023.9 B
+
+        println!("{}", human_size(unit * unit));        // 1 MB
+        println!("{}", human_size(unit * unit - 1));      // 1023.9 KB
+
+        println!("{}", human_size(unit * unit * unit)); // 1 GB
+        println!("{}", human_size(unit * unit * unit - 1));  // 1023.9 MB
+
+        println!("{}", human_size(unit * unit * unit * unit));          // 1 TB
+        println!("{}", human_size(unit * unit * unit * unit - 1));      // 1023.9 GB
+
+        println!("{}", human_size(unit * unit * unit * unit * unit));    // 1 PB
+        println!("{}", human_size(unit * unit * unit * unit * unit - 1)); //1023.9 TB
+    }
+}
\ No newline at end of file