app.py

"""EEGDash Dataset Catalog — Hugging Face Space.

Design system (kept in sync with ``style.css``):

* Typography: Inter for UI (14px base, 600 for headings), JetBrains Mono for
  code snippets. Hierarchy: hero title > section titles > labels > meta.
* Palette: Okabe-Ito (colorblind-safe). Brand is #0072B2 (EEG-blue). One warm
  accent #E69F00 reserved for the ``on 🤗`` flag — never decorative. Neutral
  ramp is slate (#f8fafc → #0f172a).
* Encoding: categorical modality gets one Okabe-Ito hue per value. Continuous
  (dataset size) is never encoded by color.
* Annotation: the hero, modality strip and detail panel each carry one
  sentence of prose so the page reads as an argument, not a data dump.
"""

from __future__ import annotations

import ast
import html as _html
import json
import logging
import os
from functools import lru_cache
from pathlib import Path

import gradio as gr
import pandas as pd
from huggingface_hub import HfApi
from huggingface_hub.utils import HfHubHTTPError

HF_ORG = "EEGDash"
ROOT = Path(__file__).parent
CSV_PATH = ROOT / "dataset_summary.csv"
CSS_PATH = ROOT / "style.css"
ASSETS_DIR = ROOT / "assets"
EEGDASH_URL = "https://eegdash.org"
GITHUB_URL = "https://github.com/eegdash/EEGDash"
PYPI_URL = "https://pypi.org/project/eegdash/"
DISCORD_URL = "https://discord.gg/eegdash"


def _read_svg(name: str) -> str:
    """Read an SVG asset and strip the XML prolog so it inlines cleanly.

    Inlining lets us color icons via ``currentColor`` and avoids the file
    endpoint for tiny assets that would otherwise cost an extra round-trip.
    """
    path = ASSETS_DIR / name
    if not path.exists():
        return ""
    raw = path.read_text(encoding="utf-8")
    # Remove XML declaration + comments (Inkscape adds both).
    for marker in ("?>", "-->"):
        idx = raw.rfind(marker)
        if idx != -1 and idx < 300:
            raw = raw[idx + len(marker):].lstrip()
    return raw


ICON_GITHUB = _read_svg("github.svg")
ICON_PYPI = _read_svg("pypi.svg")
ICON_DISCORD = _read_svg("discord.svg")
SVG_MARK = _read_svg("mark.svg")
SVG_BIDS = _read_svg("bids.svg")


def _plot_iframe(name: str, *, height: int, title: str) -> str:
    """Embed a plotly plot in a sandboxed iframe.

    Gradio's ``gr.HTML`` strips ``<script>`` tags for XSS safety, which
    would leave plotly fragments inert. An iframe is a clean boundary:
    scripts inside the child document run normally and the host page stays
    safe from them.
    """
    path = ASSETS_DIR / "plots" / f"{name}.html"
    if not path.exists():
        return ""
    src = f"/gradio_api/file=assets/plots/{name}.html"
    return (
        f'<iframe class="eeg-plot__iframe" src="{src}" '
        f'title="{title}" loading="lazy" '
        f'sandbox="allow-scripts allow-same-origin allow-popups" '
        f'style="width:100%;height:{height}px;border:0;display:block;"></iframe>'
    )

# Asset URLs rendered client-side. Gradio 5 serves from the working dir
# through /gradio_api/file= when the path is in ``allowed_paths``.
LOGO_URL = "/gradio_api/file=assets/logo.svg"
FAVICON_URL = "/gradio_api/file=assets/favicon.ico"
RECORDING_ICON = {
    "eeg": "/gradio_api/file=assets/recording/eeg.png",
    "ieeg": "/gradio_api/file=assets/recording/ieeg.png",
    "meg": "/gradio_api/file=assets/recording/meg.png",
}

# Okabe-Ito categorical palette — one hue per modality, reused consistently
# across the modality strip and filter chips so the reader learns the mapping
# once.
MODALITY_HUES: dict[str, str] = {
    "Visual": "#0072B2",
    "Auditory": "#009E73",
    "Motor": "#D55E00",
    "Tactile": "#CC79A7",
    "Multisensory": "#E69F00",
    "Resting State": "#56B4E9",
    "Sleep": "#F0E442",
    "Anesthesia": "#999999",
    "Other": "#555555",
    "Unknown": "#cbd5e1",
}
DEFAULT_HUE = "#64748b"

TABLE_COLUMNS = [
    "dataset",
    "author_year",
    "source",
    "record_modality",
    "Type Subject",
    "modality of exp",
    "type of exp",
    "n_subjects",
    "n_records",
    "n_tasks",
    "nchans",
    "sfreq",
    "size",
    "license",
    "on_hf",
]

DISPLAY_HEADERS = {
    "dataset": "Dataset",
    "author_year": "Author (year)",
    "source": "Source",
    "record_modality": "Recording",
    "Type Subject": "Pathology",
    "modality of exp": "Modality",
    "type of exp": "Type",
    "n_subjects": "Subjects",
    "n_records": "Records",
    "n_tasks": "Tasks",
    "nchans": "Channels",
    "sfreq": "Hz",
    "size": "Size",
    "license": "License",
    "on_hf": "🤗",
}

log = logging.getLogger(__name__)


# -------------------- Data loading --------------------


def _parse_mode_from_json_col(cell: object) -> str:
    if not isinstance(cell, str) or not cell.strip():
        return ""
    try:
        parsed = json.loads(cell)
    except json.JSONDecodeError:
        try:
            parsed = ast.literal_eval(cell)
        except (SyntaxError, ValueError):
            return ""
    if not parsed:
        return ""
    top = max(parsed, key=lambda d: d.get("count", 0))
    val = top.get("val", "")
    if isinstance(val, float) and val.is_integer():
        val = int(val)
    return str(val)


@lru_cache(maxsize=1)
def _hf_repos() -> set[str]:
    try:
        api = HfApi()
        repos = api.list_datasets(author=HF_ORG, limit=2000)
        return {r.id.split("/", 1)[-1] for r in repos}
    except (HfHubHTTPError, Exception):  # noqa: BLE001
        return set()


def _load_catalog() -> pd.DataFrame:
    df = pd.read_csv(CSV_PATH)
    df["nchans"] = df["nchans_set"].apply(_parse_mode_from_json_col)
    df["sfreq"] = df["sampling_freqs"].apply(_parse_mode_from_json_col)
    # HF normalizes slugs to lowercase when creating repos; compare that way
    # so mixed-case entries (e.g. "EEG2025r1") still flag correctly.
    on_hub = {s.lower() for s in _hf_repos()}
    df["on_hf"] = df["dataset"].apply(
        lambda s: "✓" if str(s).lower() in on_hub else ""
    )
    for col in ("n_subjects", "n_records", "n_tasks"):
        df[col] = pd.to_numeric(df[col], errors="coerce").fillna(0).astype(int)
    extra = ["dataset_title", "doi", "duration_hours_total"]
    for col in TABLE_COLUMNS + extra:
        if col not in df.columns:
            df[col] = ""
    df = df[TABLE_COLUMNS + extra].fillna("")
    return df


# -------------------- Filtering --------------------


def _unique_sorted(series: pd.Series) -> list[str]:
    return sorted({str(v).strip() for v in series if str(v).strip()})


def _filter(
    df: pd.DataFrame,
    query: str,
    modalities: list[str],
    subject_types: list[str],
    sources: list[str],
    licenses: list[str],
    min_subjects: int,
    only_on_hf: bool,
) -> pd.DataFrame:
    out = df
    if query:
        q = query.lower().strip()
        hay = (
            out["dataset"].str.lower()
            + " "
            + out["author_year"].str.lower()
            + " "
            + out["dataset_title"].astype(str).str.lower()
        )
        out = out[hay.str.contains(q, regex=False, na=False)]
    if modalities:
        out = out[out["modality of exp"].isin(modalities)]
    if subject_types:
        out = out[out["Type Subject"].isin(subject_types)]
    if sources:
        out = out[out["source"].isin(sources)]
    if licenses:
        out = out[out["license"].isin(licenses)]
    if min_subjects > 0:
        out = out[out["n_subjects"] >= min_subjects]
    if only_on_hf:
        out = out[out["on_hf"] == "✓"]
    return out


def _render_table(df: pd.DataFrame) -> pd.DataFrame:
    return df[TABLE_COLUMNS].rename(columns=DISPLAY_HEADERS)


# -------------------- Hero (stats + modality strip) --------------------


def _fmt_num(n: float) -> str:
    if n >= 1_000_000:
        return f"{n / 1_000_000:.1f}M"
    if n >= 1_000:
        return f"{n / 1_000:.1f}k"
    return f"{int(n):,}"


def _hero_html(df: pd.DataFrame, total_all: int) -> str:
    """Hero banner — the one thing a first-time visitor reads.

    Four stat cards answer: "how big is this catalog?" at a glance. The
    count is filter-aware so the banner tracks what's currently visible.
    """
    subjects = int(df["n_subjects"].sum())
    records = int(df["n_records"].sum())
    hours_series = pd.to_numeric(df["duration_hours_total"], errors="coerce").fillna(0)
    hours = float(hours_series.sum())
    on_hf = int((df["on_hf"] == "✓").sum())
    viewing = len(df)

    return f"""
<section class="eeg-hero">
  <div class="eeg-hero__left">
    <img class="eeg-hero__logo" src="{LOGO_URL}" alt="EEGDash" />
    <p class="eeg-hero__lede">
      Open catalog of {total_all} EEG / MEG datasets. Search, filter, and
      load any of them with a single line of Python — streamed from NEMAR
      or mirrored to <a href="https://huggingface.co/{HF_ORG}">🤗 {HF_ORG}</a>.
    </p>
    <div class="eeg-hero__cta">
      <a class="eeg-btn eeg-btn--primary" href="{EEGDASH_URL}" target="_blank" rel="noopener">eegdash.org <span aria-hidden="true">→</span></a>
      <a class="eeg-btn eeg-btn--icon" href="{GITHUB_URL}" target="_blank" rel="noopener" aria-label="GitHub">{ICON_GITHUB}<span>GitHub</span></a>
      <a class="eeg-btn eeg-btn--icon" href="{PYPI_URL}" target="_blank" rel="noopener" aria-label="PyPI">{ICON_PYPI}<span>PyPI</span></a>
    </div>
  </div>
  <div class="eeg-hero__stats" role="group" aria-label="Catalog totals">
    <div class="eeg-stat"><div class="eeg-stat__n">{_fmt_num(viewing)}</div><div class="eeg-stat__l">datasets <span class="eeg-stat__meta">of {total_all}</span></div></div>
    <div class="eeg-stat"><div class="eeg-stat__n">{_fmt_num(subjects)}</div><div class="eeg-stat__l">subjects</div></div>
    <div class="eeg-stat"><div class="eeg-stat__n">{_fmt_num(records)}</div><div class="eeg-stat__l">recordings</div></div>
    <div class="eeg-stat eeg-stat--accent"><div class="eeg-stat__n">{on_hf}</div><div class="eeg-stat__l">on <span aria-label="Hugging Face">🤗</span></div></div>
  </div>
</section>
"""


def _modality_strip_html(df: pd.DataFrame) -> str:
    """Horizontal bar of dataset counts by modality — quick shape check.

    Effectiveness via length (bars), expressiveness via categorical hue.
    One stacked row is enough because we're answering a single question:
    which experimental paradigms dominate the catalog?
    """
    counts = (
        df["modality of exp"]
        .replace("", "Unknown")
        .value_counts()
        .sort_values(ascending=False)
    )
    if counts.empty:
        return ""
    total = int(counts.sum())
    segments = []
    legend = []
    for name, n in counts.items():
        hue = MODALITY_HUES.get(str(name), DEFAULT_HUE)
        pct = (n / total) * 100
        # Every modality appears in the legend (user-facing single line),
        # but sub-pixel bar segments get a min-width so they stay clickable.
        segments.append(
            f'<span class="eeg-bar__seg" style="width:{pct:.2f}%;background:{hue};min-width:2px" '
            f'title="{_html.escape(str(name))}: {n}"></span>'
        )
        legend.append(
            f'<span class="eeg-legend__item">'
            f'<span class="eeg-legend__swatch" style="background:{hue}"></span>'
            f"{_html.escape(str(name))} <span class='eeg-legend__n'>{n}</span>"
            f"</span>"
        )
    return f"""
<section class="eeg-modality" aria-label="Datasets by experimental modality">
  <div class="eeg-modality__head">
    <span class="eeg-modality__title">By modality</span>
    <span class="eeg-modality__meta">{total} datasets · {len(counts)} modalities</span>
  </div>
  <div class="eeg-bar" role="img" aria-label="Stacked breakdown of datasets by modality">{''.join(segments)}</div>
  <div class="eeg-legend">{''.join(legend)}</div>
</section>
"""


# -------------------- Detail card (HTML) --------------------


def _e(v: object) -> str:
    return _html.escape(str(v)) if v is not None else ""


def _snippet_block(label: str, code: str) -> str:
    return (
        f'<div class="eeg-snippet"><div class="eeg-snippet__hd">{_e(label)}</div>'
        f'<pre class="eeg-snippet__code">{_e(code)}</pre></div>'
    )


def _detail_html(df: pd.DataFrame, slug: str) -> str:
    if not slug:
        return _empty_detail()
    match = df[df["dataset"] == slug]
    if match.empty:
        return _empty_detail()
    row = match.iloc[0]
    on_hf = row["on_hf"] == "✓"
    title = str(row.get("dataset_title", "") or slug)
    doi = str(row.get("doi", "") or "").strip()
    author = str(row.get("author_year", "") or "").strip()
    license_ = str(row.get("license", "") or "—").strip() or "—"
    modality = str(row.get("modality of exp", "") or "").strip() or "—"
    pathology = str(row.get("Type Subject", "") or "").strip() or "—"
    modality_hue = MODALITY_HUES.get(modality, DEFAULT_HUE)

    doi_link = (
        f'<a class="eeg-tag" href="https://doi.org/{_e(doi)}" target="_blank" rel="noopener">doi:{_e(doi)}</a>'
        if doi
        else ""
    )
    hf_link = (
        f'<a class="eeg-tag eeg-tag--accent" href="https://huggingface.co/datasets/{HF_ORG}/{_e(slug)}" target="_blank" rel="noopener">🤗 on Hub</a>'
        if on_hf
        else '<span class="eeg-tag eeg-tag--muted">not mirrored yet</span>'
    )
    rec_type = str(row.get("record_modality", "") or "").strip().lower()
    rec_icon = RECORDING_ICON.get(rec_type)
    rec_badge = (
        f'<img class="eeg-card__rec" src="{rec_icon}" alt="{_e(rec_type.upper())} recording" title="{_e(rec_type.upper())} recording"/>'
        if rec_icon
        else ""
    )

    stats = [
        ("Subjects", _fmt_num(int(row.get("n_subjects", 0) or 0))),
        ("Recordings", _fmt_num(int(row.get("n_records", 0) or 0))),
        ("Tasks", _fmt_num(int(row.get("n_tasks", 0) or 0))),
        ("Channels", str(row.get("nchans", "") or "—")),
        ("Sampling", f"{row.get('sfreq', '') or '—'} Hz"),
        ("Size", str(row.get("size", "") or "—")),
    ]
    stat_cards = "".join(
        f'<div class="eeg-kv"><div class="eeg-kv__n">{_e(v)}</div><div class="eeg-kv__l">{_e(k)}</div></div>'
        for k, v in stats
    )

    native_snippet = (
        "from eegdash import EEGDashDataset\n\n"
        f'ds = EEGDashDataset(dataset="{slug}", cache_dir="./cache")\n'
        'print(len(ds), "recordings")'
    )
    if on_hf:
        hub_snippet = (
            "from braindecode.datasets import BaseConcatDataset\n\n"
            f'ds = BaseConcatDataset.pull_from_hub("{HF_ORG}/{slug}")'
        )
        hub_block = _snippet_block("From 🤗 Hub (braindecode, Zarr)", hub_snippet)
    else:
        hub_snippet = (
            "from eegdash import EEGDashDataset\n\n"
            f'ds = EEGDashDataset(dataset="{slug}", cache_dir="./cache")\n'
            f'ds.push_to_hub("{HF_ORG}/{slug}")'
        )
        hub_block = (
            '<div class="eeg-note">This dataset isn’t mirrored on 🤗 yet. '
            f'<a href="{GITHUB_URL}/issues">Open an issue</a> to request it '
            "or push it yourself:</div>"
            + _snippet_block("Push to the Hub", hub_snippet)
        )

    return f"""
<article class="eeg-card" aria-labelledby="eeg-card-title">
  <header class="eeg-card__hd">
    <div class="eeg-card__id">
      <span class="eeg-card__slug">{_e(slug)}</span>
      <span class="eeg-card__modality" style="--hue:{modality_hue}">{_e(modality)}</span>
      {rec_badge}
    </div>
    <h2 id="eeg-card-title" class="eeg-card__title">{_e(title)}</h2>
    <div class="eeg-card__meta">
      {f'<span class="eeg-tag">{_e(author)}</span>' if author else ''}
      <span class="eeg-tag">{_e(license_)}</span>
      <span class="eeg-tag">{_e(pathology)}</span>
      {doi_link}
      {hf_link}
    </div>
  </header>

  <div class="eeg-card__kvs">{stat_cards}</div>

  <section class="eeg-card__body">
    <h3 class="eeg-card__h3">Load it</h3>
    {_snippet_block("Native EEGDash (streams from S3 / NEMAR)", native_snippet)}
    {hub_block}
  </section>
</article>
"""


def _empty_detail() -> str:
    return f"""
<article class="eeg-card eeg-card--empty">
  <div class="eeg-card__ghost">
    <div class="eeg-card__ghost-mark">{SVG_MARK}</div>
    <div class="eeg-card__ghost-title">Pick a dataset</div>
    <p>Click any row in the table to see its metadata, load snippet, and 🤗 mirror status.</p>
  </div>
</article>
"""


# -------------------- Event handlers --------------------


CATALOG = _load_catalog()
TOTAL_ALL = len(CATALOG)
MODALITY_CHOICES = _unique_sorted(CATALOG["modality of exp"])
SUBJECT_CHOICES = _unique_sorted(CATALOG["Type Subject"])
SOURCE_CHOICES = _unique_sorted(CATALOG["source"])
LICENSE_CHOICES = _unique_sorted(CATALOG["license"])


def _on_select(evt: gr.SelectData, df) -> str:
    if evt is None or evt.index is None:
        return _empty_detail()
    row_idx = evt.index[0] if isinstance(evt.index, (list, tuple)) else evt.index
    if df is None:
        return _empty_detail()
    if isinstance(df, pd.DataFrame):
        if df.empty or row_idx >= len(df):
            return _empty_detail()
        slug = str(df.iloc[row_idx, 0])
    elif isinstance(df, dict) and "data" in df:
        rows = df["data"]
        if not rows or row_idx >= len(rows):
            return _empty_detail()
        slug = str(rows[row_idx][0])
    else:
        try:
            slug = str(df[row_idx][0])
        except (IndexError, TypeError, KeyError):
            return _empty_detail()
    return _detail_html(CATALOG, slug)


def _on_filter(
    query, modalities, subject_types, sources, licenses, min_subjects, only_on_hf
):
    filtered = _filter(
        CATALOG,
        query,
        modalities,
        subject_types,
        sources,
        licenses,
        min_subjects,
        only_on_hf,
    )
    return (
        _render_table(filtered),
        _hero_html(filtered, TOTAL_ALL),
        _modality_strip_html(filtered),
    )


# -------------------- UI assembly --------------------

CSS = CSS_PATH.read_text(encoding="utf-8") if CSS_PATH.exists() else ""

THEME = gr.themes.Base(
    primary_hue=gr.themes.colors.blue,
    secondary_hue=gr.themes.colors.slate,
    neutral_hue=gr.themes.colors.slate,
    font=(gr.themes.GoogleFont("Inter"), "ui-sans-serif", "system-ui", "sans-serif"),
    font_mono=(
        gr.themes.GoogleFont("JetBrains Mono"),
        "ui-monospace",
        "SFMono-Regular",
        "monospace",
    ),
).set(
    body_background_fill="#f8fafc",
    body_background_fill_dark="#0b1220",
    background_fill_primary="#ffffff",
    background_fill_primary_dark="#111827",
    border_color_primary="#e2e8f0",
    border_color_primary_dark="#1f2937",
    button_primary_background_fill="#0072B2",
    button_primary_background_fill_hover="#005A8F",
    button_primary_text_color="#ffffff",
    block_radius="14px",
    input_radius="10px",
    body_text_color="#0f172a",
    body_text_color_dark="#e2e8f0",
)


HEAD = f"""
<link rel="icon" type="image/x-icon" href="{FAVICON_URL}" />
<meta name="description" content="Search {TOTAL_ALL} open EEG / MEG datasets — EEGDash catalog." />
<meta property="og:title" content="EEGDash — EEG/MEG dataset catalog" />
<meta property="og:description" content="Open catalog of EEG/MEG datasets, loadable with one line of Python." />
<script src="https://cdn.plot.ly/plotly-2.35.2.min.js" charset="utf-8"></script>
"""

with gr.Blocks(
    title="EEGDash — EEG/MEG dataset catalog",
    css=CSS,
    theme=THEME,
    analytics_enabled=False,
    head=HEAD,
) as demo:
    hero = gr.HTML(_hero_html(CATALOG, TOTAL_ALL), elem_classes=["eeg-hero-wrap"])
    modality_strip = gr.HTML(
        _modality_strip_html(CATALOG), elem_classes=["eeg-modality-wrap"]
    )

    with gr.Accordion(
        "Catalog views",
        open=True,
        elem_classes=["eeg-overview"],
    ):
        with gr.Tabs(elem_classes=["eeg-tabs"]):
            with gr.Tab("Flow"):
                gr.HTML(
                    '<p class="eeg-overview__lede">The catalog as a navigation '
                    'map. Every dataset flows from its <em>experimental '
                    'modality</em> (left) to its <em>clinical population</em> '
                    '(middle) to its <em>repository</em> (right). Ribbon '
                    'thickness is the dataset count along that path — follow '
                    'any color to see where a paradigm of interest lives.</p>'
                    + _plot_iframe("dataset_sankey", height=640, title="Catalog flow (sankey)"),
                    elem_classes=["eeg-plot"],
                )
            with gr.Tab("Bubbles"):
                gr.HTML(
                    '<p class="eeg-overview__lede">Every dataset as an '
                    'individual mark. Bubble size is recording count, color is '
                    'experimental modality, axes span subjects × duration. '
                    'Hover to find a specific dataset; use the filter below to '
                    'narrow the field.</p>'
                    + _plot_iframe("dataset_bubble", height=780, title="Dataset bubble chart"),
                    elem_classes=["eeg-plot"],
                )
            with gr.Tab("Treemap"):
                gr.HTML(
                    '<p class="eeg-overview__lede">Nested rectangles grouped by '
                    'modality. Area is proportional to recording count — the '
                    'biggest tiles are the heaviest contributors.</p>'
                    + _plot_iframe("dataset_treemap", height=820, title="Dataset treemap"),
                    elem_classes=["eeg-plot"],
                )
            with gr.Tab("Growth"):
                gr.HTML(
                    '<p class="eeg-overview__lede">New datasets added to the '
                    'catalog over time, colored by source. The slope tells you '
                    'how fast the archive has expanded.</p>'
                    + _plot_iframe("dataset_growth", height=520, title="Catalog growth"),
                    elem_classes=["eeg-plot"],
                )
            with gr.Tab("Clinical"):
                gr.HTML(
                    '<p class="eeg-overview__lede">Clinical populations '
                    'represented in the catalog — from healthy controls to '
                    'neurodegenerative and psychiatric conditions.</p>'
                    + _plot_iframe("dataset_clinical", height=520, title="Clinical breakdown"),
                    elem_classes=["eeg-plot"],
                )

    with gr.Row(elem_classes=["eeg-toolbar"]):
        query = gr.Textbox(
            label="Search",
            placeholder="Type a dataset id, author, or keyword…",
            show_label=False,
            elem_classes=["eeg-search"],
            scale=4,
        )
        only_on_hf = gr.Checkbox(
            label="Only 🤗-mirrored",
            value=False,
            elem_classes=["eeg-toggle"],
            scale=1,
        )

    with gr.Accordion("Filters", open=False, elem_classes=["eeg-filters"]):
        with gr.Row():
            modalities = gr.CheckboxGroup(
                label="Modality", choices=MODALITY_CHOICES, value=[]
            )
            subject_types = gr.CheckboxGroup(
                label="Pathology / population", choices=SUBJECT_CHOICES, value=[]
            )
        with gr.Row():
            sources = gr.CheckboxGroup(
                label="Source", choices=SOURCE_CHOICES, value=[]
            )
            licenses = gr.Dropdown(
                label="License",
                choices=LICENSE_CHOICES,
                multiselect=True,
                value=[],
            )
        min_subjects = gr.Slider(
            label="Minimum subjects",
            minimum=0,
            maximum=500,
            step=10,
            value=0,
        )

    with gr.Row(elem_classes=["eeg-main"]):
        with gr.Column(scale=3, elem_classes=["eeg-main__table"]):
            table = gr.Dataframe(
                value=_render_table(CATALOG),
                interactive=False,
                wrap=False,
                column_widths=[
                    "140px", "140px", "90px", "90px", "120px", "110px",
                    "140px", "85px", "85px", "60px", "80px", "70px",
                    "85px", "110px", "50px",
                ],
                label=None,
                show_label=False,
                elem_classes=["eeg-table"],
                max_height=640,
            )
        with gr.Column(scale=2, elem_classes=["eeg-main__detail"]):
            detail = gr.HTML(_empty_detail(), elem_classes=["eeg-detail"])

    gr.HTML(
        f"""
<footer class="eeg-foot">
  <span>
    EEGDash is open source · BSD-3-Clause · data licenses follow their origin.
    <a href="{EEGDASH_URL}">eegdash.org</a> ·
    <a href="{GITHUB_URL}">github</a> ·
    <a href="https://huggingface.co/{HF_ORG}">🤗 {HF_ORG}</a>
  </span>
</footer>
""",
        elem_classes=["eeg-foot-wrap"],
    )

    filter_inputs = [
        query, modalities, subject_types, sources, licenses, min_subjects, only_on_hf,
    ]
    for w in filter_inputs:
        w.change(_on_filter, filter_inputs, [table, hero, modality_strip])

    table.select(_on_select, [table], [detail])


if __name__ == "__main__":
    demo.queue().launch(
        ssr_mode=False,
        allowed_paths=[str(ASSETS_DIR)],
    )