import logging
import pathlib

import gradio as gr
import pandas as pd
from gt4sd.algorithms.generation.moler import MoLeR, MoLeRDefaultGenerator

from gt4sd.algorithms.registry import ApplicationsRegistry
from utils import draw_grid_generate

logger = logging.getLogger(__name__)
logger.addHandler(logging.NullHandler())

TITLE = "MoLeR"


def run_inference(
    algorithm_version: str,
    scaffolds: str,
    seed_smiles: str,
    beam_size: int,
    sigma: float,
    number_of_samples: int,
    seed: int,
):
    config = MoLeRDefaultGenerator(
        algorithm_version=algorithm_version,
        scaffolds=scaffolds,
        beam_size=beam_size,
        num_samples=32,
        seed=seed,
        num_workers=1,
        seed_smiles=seed_smiles,
        sigma=sigma,
    )
    model = MoLeR(configuration=config)
    samples = list(model.sample(number_of_samples))

    scaffold_list = [] if scaffolds == "" else scaffolds.split(".")
    seed_list = [] if seed_smiles == "" else seed_smiles.split(".")
    return draw_grid_generate(seed_list, scaffold_list, samples)


if __name__ == "__main__":

    # Preparation (retrieve all available algorithms)
    all_algos = ApplicationsRegistry.list_available()
    algos = [
        x["algorithm_version"]
        for x in list(filter(lambda x: TITLE in x["algorithm_name"], all_algos))
    ]

    # Load metadata
    metadata_root = pathlib.Path(__file__).parent.joinpath("model_cards")

    examples = pd.read_csv(metadata_root.joinpath("examples.csv"), header=None).fillna(
        ""
    )

    with open(metadata_root.joinpath("article.md"), "r") as f:
        article = f.read()
    with open(metadata_root.joinpath("description.md"), "r") as f:
        description = f.read()

    demo = gr.Interface(
        fn=run_inference,
        title="MoLeR (MOlecule-LEvel Representation)",
        inputs=[
            gr.Dropdown(algos, label="Algorithm version", value="v0"),
            gr.Textbox(
                label="Scaffolds",
                placeholder="CC(C#C)N(C)C(=O)NC1=CC=C(Cl)C=C1",
                lines=1,
            ),
            gr.Textbox(
                label="Seed SMILES",
                placeholder="O=C1C2=CC=C(C3=CC=CC=C3)C=C=C2OC2=CC=CC=C12",
                lines=1,
            ),
            gr.Slider(minimum=1, maximum=5, value=1, step=1, label="Beams"),
            gr.Slider(minimum=0.0, maximum=3.0, value=0.01, label="Sigma"),
            gr.Slider(
                minimum=1, maximum=50, value=10, label="Number of samples", step=1
            ),
            gr.Number(value=42, label="Seed", precision=0),
        ],
        outputs=gr.HTML(label="Output"),
        article=article,
        description=description,
        examples=examples.values.tolist(),
    )
    demo.launch(debug=True, show_error=True)