From dce6877f5de297803a737387fef7f672593904cf Mon Sep 17 00:00:00 2001
From: sigoden <sigoden@gmail.com>
Date: Thu, 2 Nov 2023 21:38:01 +0800
Subject: refactor: optimize render (#202)

---
 src/render/cmd.rs | 28 ++++++++++++----------------
 1 file changed, 12 insertions(+), 16 deletions(-)

(limited to 'src/render/cmd.rs')

diff --git a/src/render/cmd.rs b/src/render/cmd.rs
index 75768b9..e942025 100644
--- a/src/render/cmd.rs
+++ b/src/render/cmd.rs
@@ -1,6 +1,6 @@
 use super::{MarkdownRender, ReplyEvent};
 
-use crate::utils::{spaces, split_line_sematic, split_line_tail, AbortSignal};
+use crate::utils::{split_line_sematic, split_line_tail, AbortSignal};
 
 use anyhow::Result;
 use crossbeam::channel::Receiver;
@@ -12,7 +12,7 @@ pub fn cmd_render_stream(
     abort: &AbortSignal,
 ) -> Result<()> {
     let mut buffer = String::new();
-    let mut col = 0;
+    let mut indent = 0;
     loop {
         if abort.aborted() {
             return Ok(());
@@ -24,10 +24,9 @@ pub fn cmd_render_stream(
                         let text = format!("{buffer}{text}");
                         let (head, tail) = split_line_tail(&text);
                         buffer = tail.to_string();
-                        let input = format!("{}{head}", spaces(col));
-                        let output = render.render(&input);
-                        println!("{}", &output[col..]);
-                        col = 0;
+                        let output = render.render_with_indent(head, indent);
+                        println!("{}", output);
+                        indent = 0;
                     } else {
                         buffer = format!("{buffer}{text}");
                         if !(render.is_code()
@@ -38,16 +37,15 @@ pub fn cmd_render_stream(
                         {
                             if let Some((head, remain)) = split_line_sematic(&buffer) {
                                 buffer = remain;
-                                let input = format!("{}{head}", spaces(col));
-                                let output = render.render(&input);
-                                let output = &output[col..];
-                                let (_, tail) = split_line_tail(output);
-                                if render.wrap_width().is_some() {
+                                let output = render.render_with_indent(&head, indent);
+                                let (_, tail) = split_line_tail(&output);
+                                if let Some(width) = render.wrap_width() {
                                     if output.contains('\n') {
-                                        col = display_width(tail);
+                                        indent = display_width(tail);
                                     } else {
-                                        col += display_width(output);
+                                        indent += display_width(&output);
                                     }
+                                    indent %= width as usize;
                                 }
                                 print!("{}", output);
                             }
@@ -55,9 +53,7 @@ pub fn cmd_render_stream(
                     }
                 }
                 ReplyEvent::Done => {
-                    let input = format!("{}{buffer}", spaces(col));
-                    let output = render.render(&input);
-                    let output = &output[col..];
+                    let output = render.render_with_indent(&buffer, indent);
                     println!("{}", output);
                     break;
                 }
-- 
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