From 64a7fc114486993ce5f4901737c54ff52c991e41 Mon Sep 17 00:00:00 2001
From: Barrett Ruth <br.barrettruth@gmail.com>
Date: Mon, 15 Sep 2025 08:18:52 -0500
Subject: [PATCH] feat(debug): debug logs

---
 lua/cp/execute.lua | 32 ++++++++++++++++++++++++++++++--
 1 file changed, 30 insertions(+), 2 deletions(-)

diff --git a/lua/cp/execute.lua b/lua/cp/execute.lua
index 87daa60..791dbe3 100644
--- a/lua/cp/execute.lua
+++ b/lua/cp/execute.lua
@@ -1,4 +1,5 @@
 local M = {}
+local logger = require("cp.log")
 
 local filetype_to_language = {
 	cpp = "cpp",
@@ -11,7 +12,9 @@ local filetype_to_language = {
 
 local function get_language_from_file(source_file)
 	local extension = vim.fn.fnamemodify(source_file, ":e")
-	return filetype_to_language[extension] or "cpp"
+	local language = filetype_to_language[extension] or "cpp"
+	logger.log(("detected language: %s (extension: %s)"):format(language, extension))
+	return language
 end
 
 local function substitute_template(cmd_template, substitutions)
@@ -58,14 +61,29 @@ end
 
 local function compile_generic(language_config, substitutions)
 	if not language_config.compile then
+		logger.log("no compilation step required")
 		return { code = 0, stderr = "" }
 	end
 
 	local compile_cmd = substitute_template(language_config.compile, substitutions)
-	return vim.system(compile_cmd, { text = true }):wait()
+	logger.log(("compiling: %s"):format(table.concat(compile_cmd, " ")))
+
+	local start_time = vim.loop.hrtime()
+	local result = vim.system(compile_cmd, { text = true }):wait()
+	local compile_time = (vim.loop.hrtime() - start_time) / 1000000
+
+	if result.code == 0 then
+		logger.log(("compilation successful (%.1fms)"):format(compile_time))
+	else
+		logger.log(("compilation failed (%.1fms): %s"):format(compile_time, result.stderr), vim.log.levels.WARN)
+	end
+
+	return result
 end
 
 local function execute_command(cmd, input_data, timeout_ms)
+	logger.log(("executing: %s"):format(table.concat(cmd, " ")))
+
 	local start_time = vim.loop.hrtime()
 
 	local result = vim.system(cmd, {
@@ -79,6 +97,14 @@ local function execute_command(cmd, input_data, timeout_ms)
 
 	local actual_code = result.code or 0
 
+	if result.code == 124 then
+		logger.log(("execution timed out after %.1fms"):format(execution_time), vim.log.levels.WARN)
+	elseif actual_code ~= 0 then
+		logger.log(("execution failed (exit code %d, %.1fms)"):format(actual_code, execution_time), vim.log.levels.WARN)
+	else
+		logger.log(("execution successful (%.1fms)"):format(execution_time))
+	end
+
 	return {
 		stdout = result.stdout or "",
 		stderr = result.stderr or "",
@@ -184,6 +210,8 @@ function M.run_individual_tests(ctx, test_cases, contest_config, is_debug)
 		return {}
 	end
 
+	logger.log(("running %d individual tests"):format(#test_cases))
+
 	local language = get_language_from_file(ctx.source_file)
 	local language_config = contest_config[language]