From 925ae08bf740c9a884e1af22221dc477199e4cd3 Mon Sep 17 00:00:00 2001
From: yggverse <yggverse@project>
Date: Tue, 11 Feb 2025 23:59:53 +0200
Subject: [PATCH] update index file separately

---
 src/main.rs | 55 +++++++++++++++++++++++++++++++----------------------
 1 file changed, 32 insertions(+), 23 deletions(-)

diff --git a/src/main.rs b/src/main.rs
index f882470..00566c0 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -48,19 +48,43 @@ fn crawl(
 
     match channel.pub_date() {
         Some(pub_date) => {
-            // detect index file update required
-            let mut index_request = {
+            // update `index.gmi` on channel `pub_date` change
+            {
                 let remote = chrono::DateTime::parse_from_rfc2822(pub_date)?;
-                if status.is_some_and(|local| local != remote) || status.is_none() {
+                if status.is_none() || status.is_some_and(|local| local != remote) {
+                    // update global state (to skip `index.gmi` overwrites without changes)
                     *status = Some(remote);
-                    Some((
+                    // build `index.gmi` members
+                    let (mut file, mut data) = (
                         File::create(Path::build(target, pub_date, true)?.index())?,
                         Vec::new(),
-                    ))
-                } else {
-                    None
+                    );
+                    // collect `index.gmi` data
+                    for item in channel.items().iter() {
+                        match item.pub_date() {
+                            Some(pub_date) => {
+                                let path = Path::build(target, pub_date, true)?;
+
+                                data.push(format!("=> {} {pub_date}", path.filename()));
+
+                                if let Some(description) = item.description() {
+                                    data.push(description.to_string());
+                                }
+
+                                if let Some(content) = item.content() {
+                                    data.push(content.to_string());
+                                }
+                            }
+                            None => {
+                                output.warning("item skipped as `pub_date` required by application")
+                            }
+                        }
+                    }
+                    // update `index.gmi` file with new version
+                    file.write_all(data.join("\n\n").as_bytes())?;
+                    output.debug("index file updated");
                 }
-            };
+            }
 
             // handle feed items
             for item in channel.items().iter() {
@@ -76,9 +100,6 @@ fn crawl(
                             exist += 1;
                             continue; // skip existing records
                         }
-                        if let Some((_, ref mut index)) = index_request {
-                            index.push(format!("=> {} {pub_date}", path.filename()));
-                        }
                         data.push(format!("# {pub_date}"));
                         path
                     }
@@ -89,16 +110,10 @@ fn crawl(
                 };
 
                 if let Some(description) = item.description() {
-                    if let Some((_, ref mut index)) = index_request {
-                        index.push(description.to_string());
-                    }
                     data.push(description.to_string());
                 }
 
                 if let Some(content) = item.content() {
-                    if let Some((_, ref mut index)) = index_request {
-                        index.push(content.to_string());
-                    }
                     data.push(content.to_string());
                 }
 
@@ -129,12 +144,6 @@ fn crawl(
                 // record new item file
                 File::create(path.filepath())?.write_all(data.join("\n\n").as_bytes())?;
             }
-
-            // update index file
-            if let Some((mut file, index)) = index_request {
-                file.write_all(index.join("\n\n").as_bytes())?;
-                output.debug("index file updated");
-            }
         }
         None => output.warning("channel skipped as `pub_date` required by application"),
     }