import diambra.arena
import os
import numpy as np

if __name__ == '__main__':

    # Show files in folder
    base_path = os.path.dirname(os.path.abspath(__file__))
    recorded_traj_folder = os.path.join(base_path, "recordedTrajectories")
    recorded_traj_files = [os.path.join(recorded_traj_folder, f)
                        for f in os.listdir(recorded_traj_folder)
                        if os.path.isfile(os.path.join(recorded_traj_folder, f))]
    print(recorded_traj_files)

    # Imitation learning settings
    settings = {}

    # List of recorded trajectories files
    settings["traj_files_list"] = recorded_traj_files

    # Number of parallel Imitation Learning environments that will be run
    settings["total_cpus"] = 2

    # Rank of the created environment
    settings["rank"] = 0

    env = diambra.arena.ImitationLearning(**settings)

    observation = env.reset()
    env.render(mode="human")
    env.show_obs(observation)

    # Show trajectory summary
    env.traj_summary()

    while True:

        dummy_actions = 0
        observation, reward, done, info = env.step(dummy_actions)
        env.render(mode="human")
        env.show_obs(observation)
        print("Reward: {}".format(reward))
        print("Done: {}".format(done))
        print("Info: {}".format(info))

        if np.any(env.exhausted):
            break

        if done:
            observation = env.reset()
            env.render(mode="human")
            env.show_obs(observation)

    env.close()
