feat: refactor file structure

lua/cp/config.lua

@@ -178,7 +178,6 @@ function M.setup(user_config)
 
   local config = vim.tbl_deep_extend('force', M.defaults, user_config or {})
 
-  -- Validate merged config values
   vim.validate({
     before_run = {
       config.hooks.before_run,

lua/cp/init.lua

@@ -246,7 +246,7 @@ local function toggle_run_panel(is_debug)
   end
 
   local ctx = problem.create_context(state.platform, state.contest_id, state.problem_id, config)
-  local run = require('cp.run')
+  local run = require('cp.runner.run')
 
   if not run.load_test_cases(ctx, state) then
     logger.log('no test cases found', vim.log.levels.WARN)
@@ -270,7 +270,7 @@ local function toggle_run_panel(is_debug)
     tab_buf = tab_buf,
   }
 
-  local highlight = require('cp.highlight')
+  local highlight = require('cp.ui.highlight')
   local diff_namespace = highlight.create_namespace()
 
   local test_list_namespace = vim.api.nvim_create_namespace('cp_test_list')
@@ -347,7 +347,7 @@ local function toggle_run_panel(is_debug)
     vim.api.nvim_set_option_value('filetype', 'cptest', { buf = diff_buf })
     vim.api.nvim_set_option_value('winbar', 'Expected vs Actual', { win = diff_win })
 
-    local diff_backend = require('cp.diff')
+    local diff_backend = require('cp.ui.diff')
     local backend = diff_backend.get_best_backend('git')
     local diff_result = backend.render(expected_content, actual_content)
 
@@ -459,7 +459,7 @@ local function toggle_run_panel(is_debug)
           ansi_namespace
         )
       elseif desired_mode == 'git' then
-        local diff_backend = require('cp.diff')
+        local diff_backend = require('cp.ui.diff')
         local backend = diff_backend.get_best_backend('git')
         local diff_result = backend.render(expected_content, actual_content)
 
@@ -513,7 +513,7 @@ local function toggle_run_panel(is_debug)
       return
     end
 
-    local run_render = require('cp.run_render')
+    local run_render = require('cp.runner.run_render')
     run_render.setup_highlights()
 
     local test_state = run.get_run_panel_state()
@@ -573,7 +573,7 @@ local function toggle_run_panel(is_debug)
     config.hooks.before_debug(ctx)
   end
 
-  local execute = require('cp.execute')
+  local execute = require('cp.runner.execute')
   local contest_config = config.contests[state.platform]
   local compile_result = execute.compile_problem(ctx, contest_config, is_debug)
   if compile_result.success then
@@ -586,7 +586,7 @@ local function toggle_run_panel(is_debug)
 
   vim.schedule(function()
     if config.run_panel.ansi then
-      local ansi = require('cp.ansi')
+      local ansi = require('cp.ui.ansi')
       ansi.setup_highlight_groups()
     end
     if current_diff_layout then

lua/cp/runner/execute.lua

@@ -89,7 +89,7 @@ function M.compile_generic(language_config, substitutions)
     :wait()
   local compile_time = (vim.uv.hrtime() - start_time) / 1000000
 
-  local ansi = require('cp.ansi')
+  local ansi = require('cp.ui.ansi')
   result.stdout = ansi.bytes_to_string(result.stdout or '')
   result.stderr = ansi.bytes_to_string(result.stderr or '')
 

lua/cp/runner/run.lua

@@ -194,7 +194,7 @@ local function run_single_test_case(ctx, contest_config, cp_config, test_case)
       .system({ 'sh', '-c', table.concat(redirected_cmd, ' ') }, { text = false })
       :wait()
 
-    local ansi = require('cp.ansi')
+    local ansi = require('cp.ui.ansi')
     compile_result.stdout = ansi.bytes_to_string(compile_result.stdout or '')
     compile_result.stderr = ansi.bytes_to_string(compile_result.stderr or '')
 
@@ -234,7 +234,7 @@ local function run_single_test_case(ctx, contest_config, cp_config, test_case)
     :wait()
   local execution_time = (vim.uv.hrtime() - start_time) / 1000000
 
-  local ansi = require('cp.ansi')
+  local ansi = require('cp.ui.ansi')
   local stdout_str = ansi.bytes_to_string(result.stdout or '')
   local actual_output = stdout_str:gsub('\n$', '')
 
@@ -365,7 +365,7 @@ function M.get_run_panel_state()
 end
 
 function M.handle_compilation_failure(compilation_output)
-  local ansi = require('cp.ansi')
+  local ansi = require('cp.ui.ansi')
   local config = require('cp.config').setup()
 
   local clean_text

lua/cp/scrape.lua

@@ -17,7 +17,7 @@ local problem = require('cp.problem')
 local utils = require('cp.utils')
 
 local function check_internet_connectivity()
-  local result = vim.system({ 'ping', '-c', '1', '-W', '3', '8.8.8.8' }, { text = true }):wait()
+  local result = vim.system({ 'ping', '-c', '5', '-W', '3', '8.8.8.8' }, { text = true }):wait()
   return result.code == 0
 end
 

lua/cp/ui/window.lua

@@ -75,7 +75,6 @@ function M.restore_layout(state, tile_fn)
     local source_file
     if source_files ~= '' then
       local files = vim.split(source_files, '\n')
-      -- Prefer known extensions first, but accept any extension
       local known_extensions = vim.tbl_keys(constants.filetype_to_language)
       for _, file in ipairs(files) do
         local ext = vim.fn.fnamemodify(file, ':e')