refactor: remove duplicate code

src/cli/commands/mod.rs

@@ -1,6 +1,41 @@
+use std::fs;
+use std::path::Path;
+
+use chrono_tz::Tz;
+use walkdir::WalkDir;
+
+use crate::error::StreamdError;
+use crate::extract::parse_markdown_file;
+use crate::localize::localize_stream_file;
+use crate::models::{LocalizedShard, RepositoryConfiguration};
+
 pub mod completions;
 pub mod daily;
 pub mod edit;
 pub mod new;
 pub mod timesheet;
 pub mod todo;
+
+pub fn load_markdown_shards(
+    base_folder: &Path,
+    config: &RepositoryConfiguration,
+    tz: Tz,
+) -> Result<Vec<LocalizedShard>, StreamdError> {
+    let mut shards = Vec::new();
+    for entry in WalkDir::new(base_folder)
+        .max_depth(1)
+        .into_iter()
+        .filter_map(|e| e.ok())
+    {
+        let path = entry.path();
+        if path.extension().map(|e| e == "md").unwrap_or(false) {
+            let file_name = path.to_string_lossy().to_string();
+            let content = fs::read_to_string(path)?;
+            let stream_file = parse_markdown_file(&file_name, &content);
+            if let Ok(shard) = localize_stream_file(&stream_file, config, tz) {
+                shards.push(shard);
+            }
+        }
+    }
+    Ok(shards)
+}