import os

from ament_index_python.packages import get_package_share_directory

from launch import LaunchDescription
from launch.actions import DeclareLaunchArgument, IncludeLaunchDescription, SetEnvironmentVariable
from launch.launch_description_sources import PythonLaunchDescriptionSource
from launch.substitutions import LaunchConfiguration
from launch_ros.actions import Node


def generate_launch_description():

    pkg_dir = get_package_share_directory('rasms_manipulator')
    namespace = LaunchConfiguration('namespace')

    declare_namespace_cmd = DeclareLaunchArgument(
        'namespace',
        default_value='',
        description='Namespace')

    # stdout_linebuf_envvar = SetEnvironmentVariable(
    #     'RCUTILS_CONSOLE_STDOUT_LINE_BUFFERED', '1')

    plansys2_cmd = IncludeLaunchDescription(
      PythonLaunchDescriptionSource(os.path.join(
        get_package_share_directory('plansys2_bringup'),
        'launch',
        'plansys2_bringup_launch_monolithic.py')),
        launch_arguments={
          'model_file': pkg_dir + '/pddl/domain.pddl',
          'namespace': namespace
        }.items())

    move_1 = Node(
        package='plansys2_bt_actions',
        executable='bt_action_node',
        name='move_1',
        namespace=namespace,
        output='screen',
        parameters=[
          pkg_dir + '/config/params.yaml',
          {
            'action_name': 'move',
            ### [Groot](https://github.com/BehaviorTree/Groot) behavior_tree_visual tool
            ### [](https://intelligentroboticslab.gsyc.urjc.es/ros2_planning_system.github.io/design/index.html)
            # need to provide visual information about working behavior tree
            # 'publisher_port': 1668,
            # 'server_port': 1669,
            'bt_xml_file': pkg_dir + '/behavior_trees_xml/move.xml'
          }
        ])
    
    ld = LaunchDescription()

    # ld.add_action(stdout_linebuf_envvar)
    ld.add_action(declare_namespace_cmd)

    # Declare the launch options
    ld.add_action(plansys2_cmd)
    ld.add_action(move_1)
  
    return ld