From c0d41d8aa9d7417fce573d3bc047618d6d578837 Mon Sep 17 00:00:00 2001
From: D4VID <d4vid@d4vid.xyz>
Date: Sun, 4 May 2025 18:20:20 +0200
Subject: [PATCH] Implement making a new line in insert mode

---
 keybinds.lua |  3 ++-
 vim.lua      | 29 +++++++++++++++++++++++++----
 2 files changed, 27 insertions(+), 5 deletions(-)

diff --git a/keybinds.lua b/keybinds.lua
index 525a48d..e9429e9 100644
--- a/keybinds.lua
+++ b/keybinds.lua
@@ -17,8 +17,9 @@ keybinds.normal["up"] = "up"
 keybinds.normal["right"] = "right"
 
 keybinds.normal["x"] = "delChar"
-keybinds.normal["X"] = "delChar"
+keybinds.normal["X"] = "delCharBack"
 
+keybinds.normal["dd"] = "delLine"
 
 keybinds.normal["H"] = "moveHigh"
 keybinds.normal["M"] = "moveMiddle"
diff --git a/vim.lua b/vim.lua
index 3d4299a..7232434 100644
--- a/vim.lua
+++ b/vim.lua
@@ -236,6 +236,14 @@ local functions = {
             moveActualCursor(-1, 0)
         end
     end,
+    delCharBack = function()
+        if actualX == 1 then return end
+        local line = buffer[actualY]
+        buffer[actualY] = line:sub(1, actualX-2) .. line:sub(actualX, #line)
+        changed = true
+        redrawLine(actualY)
+        moveActualCursor(-1, 0)
+    end,
 
     scrollDown = function() -- (content moves up)
         if scrollY < #buffer-1 then
@@ -333,11 +341,24 @@ local function onKeyInsert(char, code)
                 moveActualCursor(-1, 0)
             end
         elseif keyboard.keys[code] == 'enter' then
-            -- TODO: move text after cursor on the new line
-            table.insert(buffer, actualY+1, "")
-            gpu.copy(1, cursorY+1, w, h-cursorY-1, 0, 1)
+            local beforeCursor = string.sub(buffer[actualY], 0, actualX-1)
+            local afterCursor = string.sub(buffer[actualY], actualX, #buffer[actualY])
+
+            buffer[actualY] = beforeCursor
+            table.insert(buffer, actualY+1, afterCursor)
+
+            gpu.copy(1, cursorY+1, w, h-cursorY-1, 0, 1) -- move text down to make space for the new line
             gpu.fill(1, cursorY+1, w, 1, ' ')
-            moveActualCursor(0, 1)
+
+            redrawLine(actualY)
+            redrawLine(actualY+1)
+
+            setActualCursor(0, actualY+1, false)
+        elseif keyboard.keys[code] == 'back' then
+            functions.delCharBack()
+            --local line = buffer[actualY]
+            --buffer[actualY] = line:sub(1, actualX-2) .. line:sub(actualX, #line)
+            --redrawLine(actualY)
         end
     end