fix: Properly check if window layout changed before resetting (#254)

lua/CopilotChat/init.lua

@@ -7,6 +7,7 @@ local context = require('CopilotChat.context')
 local prompts = require('CopilotChat.prompts')
 local debuginfo = require('CopilotChat.debuginfo')
 local tiktoken = require('CopilotChat.tiktoken')
+local utils = require('CopilotChat.utils')
 
 local M = {}
 local plugin_name = 'CopilotChat.nvim'
@@ -274,8 +275,8 @@ end
 ---@param config CopilotChat.config|CopilotChat.config.prompt|nil
 ---@param source CopilotChat.config.source?
 function M.open(config, source, no_insert)
-  local should_reset = config and config.window ~= nil and not vim.tbl_isempty(config.window)
   config = vim.tbl_deep_extend('force', M.config, config or {})
+  local should_reset = state.config and not utils.table_equals(config.window, state.config.window)
   state.config = config
   state.source = vim.tbl_extend('keep', source or {}, {
     bufnr = vim.api.nvim_get_current_buf(),

lua/CopilotChat/utils.lua

@@ -96,4 +96,28 @@ function M.temp_file(text)
   return temp_file
 end
 
+--- Check if a table is equal to another table
+---@param a table The first table
+---@param b table The second table
+---@return boolean
+function M.table_equals(a, b)
+  if type(a) ~= type(b) then
+    return false
+  end
+  if type(a) ~= 'table' then
+    return a == b
+  end
+  for k, v in pairs(a) do
+    if not M.table_equals(v, b[k]) then
+      return false
+    end
+  end
+  for k, v in pairs(b) do
+    if not M.table_equals(v, a[k]) then
+      return false
+    end
+  end
+  return true
+end
+
 return M