From 4c39d7839cb3763a7e0aeb0a623b7e353bbe7071 Mon Sep 17 00:00:00 2001
From: 7000pctAUTO <lukems3823@gmail.com>
Date: Wed, 4 Feb 2026 15:45:43 +0000
Subject: [PATCH] Initial upload: GitPulse - Developer Productivity Analyzer
 CLI tool

---
 src/export/csv.rs | 59 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 59 insertions(+)
 create mode 100644 src/export/csv.rs

diff --git a/src/export/csv.rs b/src/export/csv.rs
new file mode 100644
index 0000000..92bbfad
--- /dev/null
+++ b/src/export/csv.rs
@@ -0,0 +1,59 @@
+use crate::models::AnalysisResult;
+use anyhow::{Context, Result};
+use csv::{Writer, WriterBuilder};
+use std::fs::File;
+use std::path::PathBuf;
+
+pub fn export_csv(result: &AnalysisResult, path: &PathBuf) -> Result<()> {
+    let mut wtr = WriterBuilder::new()
+        .delimiter(b',')
+        .has_headers(true)
+        .from_path(path)
+        .context("Failed to create CSV writer")?;
+
+    wtr.write_record(&[
+        "Name", "Email", "Commits", "Lines Added", "Lines Removed", "Net Change",
+    ])?;
+
+    for author in &result.contributors.top_contributors {
+        wtr.write_record(&[
+            &author.name,
+            &author.email,
+            &author.commits.to_string(),
+            &author.lines_added.to_string(),
+            &author.lines_removed.to_string(),
+            &author.net_change.to_string(),
+        ])?;
+    }
+
+    wtr.flush()?;
+    Ok(())
+}
+
+pub fn export_contributors_detailed(result: &AnalysisResult, path: &PathBuf) -> Result<()> {
+    let mut wtr = Writer::from_path(path)?;
+    
+    wtr.write_record(&[
+        "Name", "Email", "Commits", "Lines Added", "Lines Removed", 
+        "Net Change", "Files Changed", "First Commit", "Last Commit",
+        "Avg Commits/Day"
+    ])?;
+
+    for author in &result.contributors.top_contributors {
+        wtr.write_record(&[
+            &author.name,
+            &author.email,
+            &author.commits.to_string(),
+            &author.lines_added.to_string(),
+            &author.lines_removed.to_string(),
+            &author.net_change.to_string(),
+            &author.files_changed.to_string(),
+            &author.first_commit,
+            &author.last_commit,
+            &format!("{:.2}", author.average_commits_per_day),
+        ])?;
+    }
+
+    wtr.flush()?;
+    Ok(())
+}