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import http.client as http_client
import json
import logging
import os
import re
import string

import gradio as gr
import requests


def get_docid_html(docid):
    data_org, dataset, docid = docid.split("/")

    docid_html = """<a
        class="underline-on-hover"
        title="I am hovering over the text"
        style="color:#2D31FA;"
        href="https://huggingface.co/datasets/bigscience-data/{}"
        target="_blank">{}</a><span style="color: #7978FF;">/{}</span>""".format(
        dataset, data_org + "/" + dataset, docid
    )
    return docid_html


PII_TAGS = {"KEY", "EMAIL", "USER", "IP_ADDRESS", "ID", "IPv4", "IPv6"}
PII_PREFIX = "PI:"


def process_pii(text):
    for tag in PII_TAGS:
        text = text.replace(
            PII_PREFIX + tag,
            """<b><mark style="background: Fuchsia; color: Lime;">REDACTED {}</mark></b>""".format(tag),
        )
    return text


def process_results(results, highlight_terms):
    if len(results) == 0:
        return """<br><p style='font-family: Arial; color:Silver; text-align: center;'>
                No results retrieved.</p><br><hr>"""

    results_html = ""
    for result in results:
        tokens = result["text"].split()
        tokens_html = []
        for token in tokens:
            if token in highlight_terms:
                tokens_html.append("<b>{}</b>".format(token))
            else:
                tokens_html.append(token)
        tokens_html = " ".join(tokens_html)
        tokens_html = process_pii(tokens_html)
        meta_html = (
            """
                <p class='underline-on-hover' style='font-size:12px; font-family: Arial; color:#585858; text-align: left;'>
                <a href='{}' target='_blank'>{}</a></p>""".format(
                result["meta"]["url"], result["meta"]["url"]
            )
            if "meta" in result and result["meta"] is not None and "url" in result["meta"]
            else ""
        )
        docid_html = get_docid_html(result["docid"])
        results_html += """{}
            <p style='font-size:14px; font-family: Arial; color:#7978FF; text-align: left;'>Document ID: {}</p>
            <p style='font-size:12px; font-family: Arial; color:MediumAquaMarine'>Language: {}</p>
            <p style='font-family: Arial;'>{}</p>
            <br>
        """.format(
            meta_html, docid_html, result["lang"], tokens_html
        )
    return results_html + "<hr>"


def scisearch(query, language, num_results=10):
    try:
        query = query.strip()
        if query == "" or query is None:
            return

        post_data = {"query": query, "k": num_results}
        if language != "detect_language":
            post_data["lang"] = language

        output = requests.post(
            os.environ.get("address"),
            headers={"Content-type": "application/json"},
            data=json.dumps(post_data),
            timeout=60,
        )

        payload = json.loads(output.text)

        if "err" in payload:
            if payload["err"]["type"] == "unsupported_lang":
                detected_lang = payload["err"]["meta"]["detected_lang"]
                return f"""
                    <p style='font-size:18px; font-family: Arial; color:MediumVioletRed; text-align: center;'>
                    Detected language <b>{detected_lang}</b> is not supported.<br>
                    Please choose a language from the dropdown or type another query.
                    </p><br><hr><br>"""

        results = payload["results"]
        highlight_terms = payload["highlight_terms"]

        if language == "detect_language":
            return (
                (
                    f"""<p style='font-family: Arial; color:MediumAquaMarine; text-align: center; line-height: 3em'>
                Detected language: <b>{results[0]["lang"]}</b></p><br><hr><br>"""
                    if len(results) > 0 and language == "detect_language"
                    else ""
                )
                + process_results(results, highlight_terms)
            )

        if language == "all":
            results_html = ""
            for lang, results_for_lang in results.items():
                if len(results_for_lang) == 0:
                    results_html += f"""<p style='font-family: Arial; color:Silver; text-align: left; line-height: 3em'>
                            No results for language: <b>{lang}</b><hr></p>"""
                    continue

                collapsible_results = f"""
                    <details>
                        <summary style='font-family: Arial; color:MediumAquaMarine; text-align: left; line-height: 3em'>
                            Results for language: <b>{lang}</b><hr>
                        </summary>
                        {process_results(results_for_lang, highlight_terms)}
                    </details>"""
                results_html += collapsible_results
            return results_html

        return process_results(results, highlight_terms)

    except Exception as e:
        results_html = f"""
                <p style='font-size:18px; font-family: Arial; color:MediumVioletRed; text-align: center;'>
                Raised {type(e).__name__}</p>
                <p style='font-size:14px; font-family: Arial; '>
                Check if a relevant discussion already exists in the Community tab. If not, please open a discussion.
                </p>
            """

    return results_html


def flag(query, language, num_results, issue_description):
    try:
        post_data = {"query": query, "k": num_results, "flag": True, "description": issue_description}
        if language != "detect_language":
            post_data["lang"] = language

        output = requests.post(
            os.environ.get("address"),
            headers={"Content-type": "application/json"},
            data=json.dumps(post_data),
            timeout=120,
        )

        results = json.loads(output.text)
    except:
        print("Error flagging")
    return ""


description = """# <p style="text-align: center;"> 🌸 🔎 ROOTS search tool 🔍 🌸 </p>
The ROOTS corpus was developed during the [BigScience workshop](https://bigscience.huggingface.co/) for the purpose
of training the Multilingual Large Language Model [BLOOM](https://huggingface.co/bigscience/bloom). This tool allows
you to search through the ROOTS corpus. We serve a BM25 index for each language or group of languages included in
ROOTS. You can read more about the details of the tool design
[here](https://huggingface.co/spaces/bigscience-data/scisearch/blob/main/roots_search_tool_specs.pdf). For more
information and instructions on how to access the full corpus check [this form](https://forms.gle/qyYswbEL5kA23Wu99)."""


if __name__ == "__main__":
    demo = gr.Blocks(
        css=".underline-on-hover:hover { text-decoration: underline; } .flagging { font-size:12px; color:Silver; }"
    )

    with demo:
        with gr.Row():
            gr.Markdown(value=description)
        with gr.Row():
            query = gr.Textbox(lines=2, placeholder="Type your query here...", label="Query")
        with gr.Row():
            lang = gr.Dropdown(
                choices=[
                    "ar",
                    "ca",
                    "code",
                    "en",
                    "es",
                    "eu",
                    "fr",
                    "id",
                    "indic",
                    "nigercongo",
                    "pt",
                    "vi",
                    "zh",
                    "detect_language",
                    "all",
                ],
                value="en",
                label="Language",
            )
        with gr.Row():
            k = gr.Slider(1, 100, value=10, step=1, label="Max Results")
        with gr.Row():
            submit_btn = gr.Button("Submit")
        with gr.Row():
            results = gr.HTML(label="Results")
        flag_description = """
            <p class='flagging'>
            If you choose to flag your search, we will save the query, language and the number of results you requested.
            Please consider adding any additional context in the box on the right.</p>"""
        with gr.Column(visible=False) as flagging_form:
            flag_txt = gr.Textbox(
                lines=1,
                placeholder="Type here...",
                label="""If you choose to flag your search, we will save the query, language and the number of results
                    you requested. Please consider adding relevant additional context below:""",
            )
            flag_btn = gr.Button("Flag Results")
            flag_btn.click(flag, inputs=[query, lang, k, flag_txt], outputs=[flag_txt])

        def submit(query, lang, k):
            if query == "":
                return ["", ""]
            return {
                results: scisearch(query, lang, k),
                flagging_form: gr.update(visible=True),
            }

        submit_btn.click(submit, inputs=[query, lang, k], outputs=[results, flagging_form])

    demo.launch(enable_queue=True, debug=True)