import os
import json
import gradio as gr
import pandas as pd
from apscheduler.schedulers.background import BackgroundScheduler

from src.assets.text_content import TITLE, INTRODUCTION_TEXT, SINGLE_A100_TEXT, CITATION_BUTTON_LABEL, CITATION_BUTTON_TEXT
from src.utils import restart_space, load_dataset_repo, make_clickable_model, make_clickable_score, extract_score_from_clickable
from src.assets.css_html_js import custom_css


LLM_PERF_LEADERBOARD_REPO = "optimum/llm-perf-leaderboard"
LLM_PERF_DATASET_REPO = "optimum/llm-perf-dataset"
OPTIMUM_TOKEN = os.environ.get("OPTIMUM_TOKEN", None)

COLUMNS_MAPPING = {
    "model": "Model 🤗",
    "backend.name": "Backend 🏭",
    "backend.torch_dtype": "Datatype 📥",
    "average": "Average H4 Score ⬆️",
    "forward.peak_memory(MB)": "Peak Memory (MB) ⬇️",
    "generate.throughput(tokens/s)": "Throughput (tokens/s) ⬆️",
}
COLUMNS_DATATYPES = ["markdown", "str", "str", "markdown", "number", "number"]
SORTING_COLUMN = ["Throughput (tokens/s) ⬆️"]


llm_perf_dataset_repo = load_dataset_repo(LLM_PERF_DATASET_REPO, OPTIMUM_TOKEN)


def get_benchmark_df(benchmark):
    if llm_perf_dataset_repo:
        llm_perf_dataset_repo.git_pull()

    # load
    bench_df = pd.read_csv(
        f"./llm-perf-dataset/reports/{benchmark}/inference_report.csv")

    scores_df = pd.read_csv(
        f"./llm-perf-dataset/reports/average_scores.csv")
    bench_df = bench_df.merge(scores_df, on="model", how="left")
    bench_df["average"] = bench_df["average"].apply(
        make_clickable_score)

    # preprocess
    bench_df["model"] = bench_df["model"].apply(make_clickable_model)
    # filter
    bench_df = bench_df[list(COLUMNS_MAPPING.keys())]
    # rename
    bench_df.rename(columns=COLUMNS_MAPPING, inplace=True)
    # sort
    bench_df.sort_values(by=SORTING_COLUMN, ascending=False, inplace=True)

    return bench_df


# def change_tab(query_param):
#     query_param = query_param.replace("'", '"')
#     query_param = json.loads(query_param)

#     if (
#         isinstance(query_param, dict)
#         and "tab" in query_param
#         and query_param["tab"] == "evaluation"
#     ):
#         return gr.Tabs.update(selected=1)
#     else:
#         return gr.Tabs.update(selected=0)


def submit_query(text, backends, datatypes, threshold, raw_dfs):
    filtered_dfs = []
    for raw_df in raw_dfs:
        # extract the average score (float) from the clickable score (clickable markdown)
        raw_df["Average H4 Score ⬆️"] = raw_df["Average H4 Score ⬆️"].apply(
            extract_score_from_clickable)
        filtered_df = raw_df[
            raw_df["Model 🤗"].str.contains(text) &
            raw_df["Backend 🏭"].isin(backends) &
            raw_df["Datatype 📥"].isin(datatypes) &
            (raw_df["Average H4 Score ⬆️"] >= threshold)
        ]
        filtered_df["Average H4 Score ⬆️"] = filtered_df["Average H4 Score ⬆️"].apply(
            make_clickable_score)

        filtered_dfs.append(filtered_df)

    return filtered_dfs


# Define demo interface
demo = gr.Blocks(css=custom_css)
with demo:
    gr.HTML(TITLE)
    gr.Markdown(INTRODUCTION_TEXT, elem_classes="markdown-text")

    with gr.Row():
        search_bar = gr.Textbox(
            label="Model 🤗",
            info="Search for a model name",
            elem_id="search-bar",
        )
        backend_checkboxes = gr.CheckboxGroup(
            label="Backends 🏭",
            choices=["pytorch", "onnxruntime"],
            value=["pytorch", "onnxruntime"],
            info="Select the backends",
            elem_id="backend-checkboxes",
        )
        datatype_checkboxes = gr.CheckboxGroup(
            label="Datatypes 📥",
            choices=["float32", "float16"],
            value=["float32", "float16"],
            info="Select the load datatypes",
            elem_id="datatype-checkboxes",
        )

    with gr.Row():
        threshold_slider = gr.Slider(
            label="Average H4 Score 📈",
            info="Filter by minimum average H4 score",
            value=0.0,
            elem_id="threshold-slider",
        )

    with gr.Row():
        submit_button = gr.Button(
            value="Submit 🚀",
            info="Submit the filters",
            elem_id="submit-button",
        )

    with gr.Tabs(elem_classes="tab-buttons") as tabs:
        with gr.TabItem("🖥️ A100-80GB Benchmark 🏋️", elem_id="A100-benchmark", id=0):
            gr.HTML(SINGLE_A100_TEXT)

            single_A100_df = get_benchmark_df(benchmark="1xA100-80GB")
            # Original leaderboard table
            single_A100_leaderboard = gr.components.Dataframe(
                value=single_A100_df,
                datatype=COLUMNS_DATATYPES,
                headers=list(COLUMNS_MAPPING.values()),
                elem_id="1xA100-table",
            )
            # Dummy Leaderboard table for handling the case when the user uses backspace key
            single_A100_for_search = gr.components.Dataframe(
                value=single_A100_df,
                datatype=COLUMNS_DATATYPES,
                headers=list(COLUMNS_MAPPING.values()),
                max_rows=None,
                visible=False,
            )

        # Callbacks
        submit_button.click(
            submit_query,
            [
                search_bar, backend_checkboxes, datatype_checkboxes, threshold_slider,
                single_A100_for_search
            ],
            [single_A100_leaderboard]
        )

    with gr.Row():
        with gr.Accordion("📙 Citation", open=False):
            citation_button = gr.Textbox(
                value=CITATION_BUTTON_TEXT,
                label=CITATION_BUTTON_LABEL,
                elem_id="citation-button",
            ).style(show_copy_button=True)

    # dummy = gr.Textbox(visible=False)
    # demo.load(
    #     change_tab,
    #     dummy,
    #     tabs,
    #     _js=get_window_url_params,
    # )

# Restart space every hour
scheduler = BackgroundScheduler()
scheduler.add_job(restart_space, "interval", seconds=3600,
                  args=[LLM_PERF_LEADERBOARD_REPO, OPTIMUM_TOKEN])
scheduler.start()

# Launch demo
demo.queue(concurrency_count=40).launch()