import os
import json
import requests

import gradio as gr
import pandas as pd
from huggingface_hub import HfApi, hf_hub_download, snapshot_download
from huggingface_hub.repocard import metadata_load
from apscheduler.schedulers.background import BackgroundScheduler

from tqdm.contrib.concurrent import thread_map

from utils import make_clickable_model, make_clickable_user

DATASET_REPO_URL = (
    "https://huggingface.co/datasets/hivex-research/hivex-leaderboard-data"
)
DATASET_REPO_ID = "hivex-research/hivex-leaderboard-data"
HF_TOKEN = os.environ.get("HF_TOKEN")

block = gr.Blocks()
api = HfApi(token=HF_TOKEN)


# .tab-buttons button {
#     font-size: 20px;
# }

custom_css = """
/* Full width space */
.gradio-container {
  max-width: 95%!important;
}
"""

hivex_envs = [
    {
        "title": "Wind Farm Control",
        "hivex_env": "hivex-wind-farm-control",
        "task_count": 2,
    },
    {
        "title": "Wildfire Resource Management",
        "hivex_env": "hivex-wildfire-resource-management",
        "task_count": 3,
    },
    {
        "title": "Drone-Based Reforestation",
        "hivex_env": "hivex-drone-based-reforestation",
        "task_count": 7,
    },
    {
        "title": "Ocean Plastic Collection",
        "hivex_env": "hivex-ocean-plastic-collection",
        "task_count": 4,
    },
    {
        "title": "Aerial Wildfire Suppression",
        "hivex_env": "hivex-aerial-wildfire-suppression",
        "task_count": 9,
    },
]


def restart():
    print("RESTART")
    api.restart_space(repo_id="hivex-research/hivex-leaderboard")


def download_leaderboard_dataset():
    path = snapshot_download(repo_id=DATASET_REPO_ID, repo_type="dataset")
    return path
    

def get_total_models():
    total_models = 0
    for hivex_env in hivex_envs:
        model_ids = get_model_ids(hivex_env["hivex_env"])
        total_models += len(model_ids)
    return total_models
    

def get_model_ids(hivex_env):
    api = HfApi()
    models = api.list_models(filter=hivex_env)
    model_ids = [x.modelId for x in models]
    return model_ids


def get_metadata(model_id):
    try:
        readme_path = hf_hub_download(model_id, filename="README.md", etag_timeout=180)
        return metadata_load(readme_path)
    except requests.exceptions.HTTPError:
        # 404 README.md not found
        return None


def update_leaderboard_dataset_parallel(hivex_env, path):
    # Get model ids associated with hivex_env
    model_ids = get_model_ids(hivex_env)

    def process_model(model_id):
        meta = get_metadata(model_id)
        # LOADED_MODEL_METADATA[model_id] = meta if meta is not None else ''
        if meta is None:
            return None
        user_id = model_id.split("/")[0]
        row = {}
        row["User"] = user_id
        row["Model"] = model_id
        results = meta["model-index"][0]["results"][0]
        row["Task"] = results["task"]["task-id"]

        results_metrics = results["metrics"]

        for result in results_metrics:
            row[result["name"]] = float(result["value"].split("+/-")[0].strip())

        return row

    data = list(thread_map(process_model, model_ids, desc="Processing models"))

    # Filter out None results (models with no metadata)
    data = [row for row in data if row is not None]

    # ranked_dataframe = rank_dataframe(pd.DataFrame.from_records(data))
    ranked_dataframe = pd.DataFrame.from_records(data)
    
    new_history = ranked_dataframe
    file_path = path + "/" + hivex_env + ".csv"
    new_history.to_csv(file_path, index=False)

    return ranked_dataframe


def run_update_dataset():
    path_ = download_leaderboard_dataset()
    for i in range(0, len(hivex_envs)):
        hivex_env = hivex_envs[i]
        update_leaderboard_dataset_parallel(hivex_env["hivex_env"], path_)

    api.upload_folder(
        folder_path=path_,
        repo_id="hivex-research/hivex-leaderboard-data",
        repo_type="dataset",
        commit_message="Update dataset",
    )


def get_data(rl_env, task, path) -> pd.DataFrame:
    """
    Get data from rl_env, filter by the given task, and drop the Task column.
    :return: filtered data as a pandas DataFrame without the Task column
    """
    csv_path = path + "/" + rl_env + ".csv"
    data = pd.read_csv(csv_path)

    # Filter the data to only include rows where the "Task" column matches the given task
    filtered_data = data[data["Task"] == task]

    # Drop the "Task" column
    filtered_data = filtered_data.drop(columns=["Task"])

    # Convert User and Model columns to clickable links
    for index, row in filtered_data.iterrows():
        user_id = row["User"]
        filtered_data.loc[index, "User"] = make_clickable_user(user_id)
        model_id = row["Model"]
        filtered_data.loc[index, "Model"] = make_clickable_model(model_id)

    return filtered_data


run_update_dataset()

block = gr.Blocks(css=custom_css)
with block:
    with gr.Row(elem_id="header-row"):
        gr.HTML(
            """
            <div align="center">
              <img
                src="https://raw.githubusercontent.com/hivex-research/hivex/main/docs/images/hivex_thumb.png"
                alt="hivex header image"
                style="border-radius: 20px; width: 50%;"
              />
            </div>
            """
        )
    with gr.Row(elem_id="header-row"):
        gr.HTML(f"<h1>HIVEX-Leaderboard</h1><br><p>Total models: {get_total_models()}</p><br>")

    path_ = download_leaderboard_dataset()
    # gr.Markdown(INTRODUCTION_TEXT, elem_classes="markdown-text")
    # ENVIRONMENT TABS
    with gr.Tabs() as tabs: # elem_classes="tab-buttons"
        for i in range(0, len(hivex_envs)):
            hivex_env = hivex_envs[i]
            with gr.Tab(hivex_env["title"]) as env_tabs:
                # TASK TABS
                for j in range(0, hivex_env["task_count"]):
                    task = "Task " + str(j + 1)
                    with gr.TabItem(f"Task {j}"):
                        with gr.Row():
                            gr_dataframe = gr.components.Dataframe(value=get_data(hivex_env["hivex_env"], j, path_), headers=["User", "Model"], datatype=["markdown", "markdown"], row_count=(100, 'fixed'))
                 

scheduler = BackgroundScheduler()
scheduler.add_job(restart, "interval", seconds=86400)
scheduler.start()

block.launch()