__author__ = "Feng Gu"
__email__ = "contact@fenggu.me"

"""
   isort:skip_file
"""

import os
import re

from gymnasium.envs.registration import registry
from tqdm import tqdm
from utils import trim
from itertools import chain

readme_path = os.path.join(
    os.path.dirname(os.path.dirname(os.path.dirname(__file__))),
    "README.md",
)

LAYOUT = "env"

pattern = re.compile(r"(?<!^)(?=[A-Z])")

all_envs = list(registry.values())

filtered_envs_by_type = {}
env_names = []
babyai_envs = {}

# Obtain filtered list
for env_spec in tqdm(all_envs):
    # minigrid.envs:Env
    split = env_spec.entry_point.split(".")
    # ignore gymnasium.envs.env_type:Env
    env_module = split[0]

    if len(split) > 2 and "babyai" in split[2]:
        curr_babyai_env = split[2]
        babyai_env_name = curr_babyai_env.split(":")[1]
        babyai_envs[babyai_env_name] = env_spec
    elif env_module == "minigrid":
        env_name = split[1]
        filtered_envs_by_type[env_name] = env_spec
    # if env_module != "minigrid":
    else:
        continue


filtered_envs = {
    env[0]: env[1]
    for env in sorted(
        filtered_envs_by_type.items(),
        key=lambda item: item[1].entry_point.split(".")[1],
    )
}

filtered_babyai_envs = {
    env[0]: env[1]
    for env in sorted(
        babyai_envs.items(),
        key=lambda item: item[1].entry_point.split(".")[1],
    )
}

for env_name, env_spec in chain(filtered_envs.items(), filtered_babyai_envs.items()):
    made = env_spec.make()

    docstring = trim(made.unwrapped.__doc__)

    pascal_env_name = env_spec.id.split("-")[1]
    # remove suffix
    p = re.compile(r"([A-Z][a-z]+)*")
    name = p.search(pascal_env_name).group()

    snake_env_name = pattern.sub("_", name).lower()
    env_names.append(snake_env_name)
    title_env_name = snake_env_name.replace("_", " ").title()

    v_path = os.path.join(
        os.path.dirname(os.path.dirname(__file__)),
        "environments",
        snake_env_name + ".md",
    )

    front_matter = f"""---
autogenerated:
title: {title_env_name}
---
"""
    title = f"# {title_env_name}"

    if docstring is None:
        docstring = "No information provided"
    all_text = f"""{front_matter}

{title}

{docstring}
"""
    file = open(v_path, "w+", encoding="utf-8")
    file.write(all_text)
    file.close()