From 01dbed5e6c15875d15eb7e9bcd58da207e0d1d4a Mon Sep 17 00:00:00 2001
From: Hadeed Ahmad <hadeedji@gmail.com>
Date: Mon, 4 Sep 2023 16:59:33 +0500
Subject: [PATCH] Almost finish editing

---
 src/buffer.c   |  2 +-
 src/commands.c | 22 +++++++++++++++++++---
 2 files changed, 20 insertions(+), 4 deletions(-)

diff --git a/src/buffer.c b/src/buffer.c
index 5055047..7965d11 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -96,7 +96,7 @@ END:
 
 void buffer_insert_row(struct buffer *buffer, const char *chars, int n_chars, int at) { // TODO: Make this take an erow
     buffer->rows = realloc(buffer->rows, sizeof(struct erow) * (buffer->n_rows + 1));
-    memmove(buffer->rows + at, buffer->rows + at + 1, sizeof(struct erow) * (buffer->n_rows - at));
+    memmove(buffer->rows + at + 1, buffer->rows + at, sizeof(struct erow) * (buffer->n_rows - at));
     struct erow *erow = buffer->rows + at;
 
     erow->chars = malloc(n_chars);
diff --git a/src/commands.c b/src/commands.c
index 031b602..d1c24ef 100644
--- a/src/commands.c
+++ b/src/commands.c
@@ -70,11 +70,27 @@ void command_move_cursor(KEY key) {
     cursor_adjust_viewport();
 }
 
+// TODO: Improve this
 void command_insert_line(void) {
-    buffer_insert_row(E.current_buf, NULL, 0, ++E.cy);
+    if (E.cy == E.current_buf->n_rows) {
+        buffer_insert_row(E.current_buf, NULL, 0, E.cy);
+        E.cy++;
+    } else {
+        buffer_insert_row(E.current_buf, NULL, 0, E.cy + 1);
 
-    E.cx = 0;
-    E.rx = 0;
+        struct erow *c_row = E.current_buf->rows + E.cy;
+        struct erow *n_row = E.current_buf->rows + E.cy + 1;
+
+        erow_append_string(n_row, c_row->chars + E.cx, c_row->n_chars - E.cx);
+
+        c_row->chars = realloc(c_row->chars, E.cx);
+        c_row->n_chars = E.cx;
+        erow_update_rendering(c_row);
+
+        E.cx = 0;
+        E.rx = 0;
+        E.cy++;
+    }
 }
 
 void command_insert_char(char c) {