#!/usr/bin/env bash

code_dirs[0]="$HOME/dev/code/cpp"
code_dirs[1]="$HOME/dev/code"

build_dir="$HOME/dev/build"

json_file="compile_commands.json"

project_name=$(pwd | sed -r "s_$build_dir/([^/]+).*\$_\1_")
project_path=""
for z in "${code_dirs[@]}"
do
	if [ -d "$z/$project_name" ]; then
		project_path="$z/$project_name"
		break;
	fi
done

if [ -z "$project_path" ]; then
	>&2 echo "Project \"$project_name\" not found in any of the search paths"
	exit 1
fi

config_name=$(pwd | sed -r "s@$build_dir/$project_name/([^/_]+_)?([^/]+).*\$@\2@")
compiler_name=$(pwd | sed -r "s@$build_dir/$project_name/([^/_]+_)?([^/]+).*\$@\1@")
compiler_option=""
if [ -n "$compiler_name" ]; then
	compiler_name="${compiler_name%?}"
	case "$compiler_name" in
	"clang")
			compiler_option="CXX=clang++ CC=clang"
		;;
	"gcc")
			compiler_option="CXX=g++ CC=gcc"
		;;
	esac
fi

config_option=""
if [ -n "$config_name" ]; then
	config_name="$(tr '[:lower:]' '[:upper:]' <<< ${config_name:0:1})${config_name:1}"
	config_option="-DCMAKE_BUILD_TYPE=$config_name"
fi

eval $compiler_option cmake -DCMAKE_EXPORT_COMPILE_COMMANDS=ON "$config_option" $@ "$project_path"

if [ -h "$project_path/$json_file" ]; then
	unlink "$project_path/$json_file"
fi
work_dir="$PWD"
(cd "$project_path" && ln -s "$work_dir/$json_file")