From 324a333e671ed521138ad50fe463ed187874176e Mon Sep 17 00:00:00 2001
From: Akshay <nerdy@peppe.rs>
Date: Sat, 6 Nov 2021 14:51:55 +0530
Subject: introducing "streaming" option to check, fix and single

---
 bin/src/fix.rs | 88 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 86 insertions(+), 2 deletions(-)

(limited to 'bin/src/fix.rs')

diff --git a/bin/src/fix.rs b/bin/src/fix.rs
index c378c13..e4ea94d 100644
--- a/bin/src/fix.rs
+++ b/bin/src/fix.rs
@@ -3,10 +3,10 @@ use std::borrow::Cow;
 use rnix::TextRange;
 
 mod all;
-pub use all::all;
+use all::all;
 
 mod single;
-pub use single::single;
+use single::single;
 
 type Source<'a> = Cow<'a, str>;
 
@@ -30,3 +30,87 @@ impl<'a> FixResult<'a> {
         }
     }
 }
+
+pub mod main {
+    use std::borrow::Cow;
+
+    use crate::{
+        config::{Fix as FixConfig, FixOut, Single as SingleConfig},
+        err::{FixErr, StatixErr},
+    };
+
+    use similar::TextDiff;
+
+    pub fn all(fix_config: FixConfig) -> Result<(), StatixErr> {
+        let vfs = fix_config.vfs()?;
+        for entry in vfs.iter() {
+            match (fix_config.out(), super::all(entry.contents)) {
+                (FixOut::Diff, fix_result) => {
+                    let src = fix_result
+                        .map(|r| r.src)
+                        .unwrap_or(Cow::Borrowed(entry.contents));
+                    let text_diff = TextDiff::from_lines(entry.contents, &src);
+                    let old_file = format!("{}", entry.file_path.display());
+                    let new_file = format!("{} [fixed]", entry.file_path.display());
+                    println!(
+                        "{}",
+                        text_diff
+                            .unified_diff()
+                            .context_radius(4)
+                            .header(&old_file, &new_file)
+                    );
+                }
+                (FixOut::Stream, fix_result) => {
+                    let src = fix_result
+                        .map(|r| r.src)
+                        .unwrap_or(Cow::Borrowed(entry.contents));
+                    println!("{}", &src)
+                }
+                (FixOut::Write, Some(fix_result)) => {
+                    let path = entry.file_path;
+                    std::fs::write(path, &*fix_result.src).map_err(FixErr::InvalidPath)?;
+                }
+                _ => (),
+            };
+        }
+        Ok(())
+    }
+
+    pub fn single(single_config: SingleConfig) -> Result<(), StatixErr> {
+        let vfs = single_config.vfs()?;
+        let entry = vfs.iter().next().unwrap();
+        let path = entry.file_path.display().to_string();
+        let original_src = entry.contents;
+        let (line, col) = single_config.position;
+
+        match (single_config.out(), super::single(line, col, original_src)) {
+            (FixOut::Diff, single_result) => {
+                let fixed_src = single_result
+                    .map(|r| r.src)
+                    .unwrap_or(Cow::Borrowed(original_src));
+                let text_diff = TextDiff::from_lines(original_src, &fixed_src);
+                let old_file = &path;
+                let new_file = format!("{} [fixed]", &path);
+                println!(
+                    "{}",
+                    text_diff
+                        .unified_diff()
+                        .context_radius(4)
+                        .header(&old_file, &new_file)
+                );
+            }
+            (FixOut::Stream, single_result) => {
+                let src = single_result
+                    .map(|r| r.src)
+                    .unwrap_or(Cow::Borrowed(original_src));
+                println!("{}", &src)
+            }
+            (FixOut::Write, Ok(single_result)) => {
+                let path = entry.file_path;
+                std::fs::write(path, &*single_result.src).map_err(FixErr::InvalidPath)?;
+            }
+            (_, Err(e)) => return Err(e.into()),
+        };
+        Ok(())
+    }
+}
-- 
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