import panel as pn
import base64
from io import BytesIO
from hipsterfy.hipsterfy import Hipsterfy, HipsterfyPlaylist, HipsterfyPlaylistItem, CardStyle
import qrcode
import traceback
import subprocess
pn.extension("filedownload", "notifications", "location")
def create_panel_page(hipsterfy: Hipsterfy, playlist_uri: str=None, root_url = None) -> pn.Template:
# create widgets
playlist_uri = pn.widgets.TextInput(name='Playlist URI', value=playlist_uri or '', placeholder='Enter Spotify Playlist URI')
primary_item = pn.widgets.Select(name='Primary Item', options=HipsterfyPlaylistItem.get_available_properties(), value="release_year")
secondary_item = pn.widgets.Select(name='Secondary Item', options=HipsterfyPlaylistItem.get_available_properties(), value="title")
additional_items = pn.widgets.MultiChoice(name='Additional Items', options=HipsterfyPlaylistItem.get_available_properties(), value=["artists", "album", "popularity"])
card_style = pn.widgets.Select(name='Card Style', options=[style.value for style in CardStyle], value=CardStyle.FULL_ALBUM_COVER.value)
cards_per_row_widget = pn.widgets.IntSlider(name="Cards per Row in print", start=1, end=8, value=4, step=1)
mode_selector = pn.widgets.RadioButtonGroup(
name="Card Generation Mode (2D for printing or 3D to produce stl files for 3D printing)",
options=["2D", "3D"],
value="2D",
button_type="primary",
button_style="outline",
sizing_mode='stretch_width'
)
# add a callback that hides the card style widget if 3D mode is selected
def toggle_card_style_visibility(event):
if mode_selector.value == "3D":
card_style.visible = False
else:
card_style.visible = True
mode_selector.param.watch(toggle_card_style_visibility, 'value')
pn.state.location.sync(playlist_uri, {"value": "playlist_uri"})
pn.state.location.sync(primary_item, {"value": "primary_item"})
pn.state.location.sync(secondary_item, {"value": "secondary_item"})
pn.state.location.sync(additional_items, {"value": "additional_items"})
pn.state.location.sync(card_style, {"value": "card_style"})
pn.state.location.sync(cards_per_row_widget, {"value": "cards_per_row"})
pn.state.location.sync(mode_selector, {"value": "mode_selector"})
create_preview_button = pn.widgets.Button(name='Parse Playlist and Generate Cards', button_type='primary', sizing_mode='stretch_width')
front_cards_column = pn.Column(sizing_mode='stretch_width')
back_cards_column = pn.Column(sizing_mode='stretch_width')
# FileDownload-Buttons (werden erst nach Preview-Generierung angezeigt)
download_front_html_button = pn.widgets.FileDownload(
label="Download Front Cards (HTML)", button_type="success", visible=False, filename="hipsterfy_front_cards.html", sizing_mode='stretch_width'
)
download_back_html_button = pn.widgets.FileDownload(
label="Download Back Cards (HTML)", button_type="success", visible=False, filename="hipsterfy_back_cards.html", sizing_mode='stretch_width'
)
playlist_instructions = pn.pane.HTML(
"""
Playlist Instructions
Select any Spotify playlist and click the "Parse Playlist and Generate Cards" button to generate the cards.
Note: The playlist must be public accessible. Also dynamically individualized playlists (unfortunately a lot of spotify official playlists) Will not work.
""",
sizing_mode='stretch_width'
)
print_instructions = pn.pane.HTML(
"""
Print Instructions
To print the cards:
- Click on the "Download Front Cards" and "Download Back Cards" buttons to download the HTML files.
- Open the downloaded files in your web browser.
- Use your browser's print function (usually Ctrl+P or Cmd+P) to print the cards.
- Make sure to first print all front cards, then all back cards on the back side of the paper.
- Adjust the print settings to ensure the cards fit well on the page.
""",
sizing_mode='stretch_width'
)
print_instructions.visible = False # Initially hidden, will be shown after preview generation
def generate_html(cards, row_reverse=False):
html = "Print Cards"
html += """
"""
html += ""
cards_per_row = cards_per_row_widget.value # <-- Widget-Wert verwenden
# Karten in Reihen zu je 3 anordnen
for i in range(0, len(cards), cards_per_row):
row = cards[i:i+cards_per_row]
if row_reverse:
row = row[::-1]
html += ''
for card in row:
html += f'
{card}
'
html += '
'
html += ""
return html.encode() # FileDownload erwartet Bytes
def update_download_buttons():
# Front Cards
cards = [pane.object for pane in front_cards_column[1:]]
download_front_html_button.callback = lambda: BytesIO(generate_html(cards, row_reverse=False))
download_front_html_button.visible = True
# Back Cards
cards_back = [pane.object for pane in back_cards_column[1:]]
download_back_html_button.callback = lambda: BytesIO(generate_html(cards_back, row_reverse=True))
download_back_html_button.visible = True
download_front_html_button.filename = f"hipsterfy_front_cards.html"
download_back_html_button.filename = f"hipsterfy_back_cards.html"
print_instructions.visible = True # Show print instructions after generating preview
pn.state.notifications.success("Download buttons updated successfully!. Download and print them from the sidebar")
def create_preview(event):
try:
pn.state.notifications.info("Generating preview for playlist...")
# clear previous cards
front_cards_column.clear()
back_cards_column.clear()
front_cards_column.loading = True
back_cards_column.loading = True
front_cards_column.append(pn.pane.HTML("Front Cards
", sizing_mode='stretch_width'))
back_cards_column.append(pn.pane.HTML("Back Cards
", sizing_mode='stretch_width'))
uri = playlist_uri.value.strip()
if not uri:
pn.state.notifications.error("Please enter a valid Spotify Playlist URI.")
return
hipsterfy_playlist = HipsterfyPlaylist(uri, hipsterfy)
new_back_cards = []
new_front_cards = []
if mode_selector.value == "2D":
# 2D-HTML wie gehabt
for item in hipsterfy_playlist.get_tracks_data():
front_card = item.generate_hipsterfy_front_card(include_preview=False, card_style=CardStyle(card_style.value))
back_card = item.generate_hipsterfy_back_card(
primary_property=primary_item.value,
secondary_property=secondary_item.value,
additional_properties=additional_items.value,
card_style=CardStyle(card_style.value)
)
new_front_cards.append(pn.pane.HTML(front_card, sizing_mode='stretch_width'))
new_back_cards.append(pn.pane.HTML(back_card, sizing_mode='stretch_width'))
for card in new_front_cards:
front_cards_column.append(card)
for card in new_back_cards:
back_cards_column.append(card)
update_download_buttons()
pn.state.notifications.success("2D preview generated successfully!")
else:
stl_buffers = []
for idx, item in enumerate(hipsterfy_playlist.get_tracks_data()):
stl_bytes = item.generate_3d_qr_card(
primary_property=primary_item.value,
secondary_property=secondary_item.value,
additional_properties=additional_items.value,
)
stl_filename = f"hipsterfy_card_{idx+1}.stl"
stl_buffers.append((stl_filename, stl_bytes))
front_cards_column.append(
pn.pane.Markdown(f"**3D Card {idx+1}:** `{stl_filename}` generated.", sizing_mode='stretch_width')
)
import zipfile
def zip_stls():
try:
buffer = BytesIO()
with zipfile.ZipFile(buffer, "w") as zf:
for fname, stl_bytes in stl_buffers:
zf.writestr(fname, stl_bytes)
buffer.seek(0)
return buffer
except Exception as e:
print("Error creating ZIP file:", e)
traceback.print_exc()
pn.state.notifications.error(f"Error creating ZIP file: {str(e)}", duration=10000)
return None
download_front_html_button.label = "Download 3D Cards (ZIP)"
download_front_html_button.callback = zip_stls
download_front_html_button.visible = True
download_back_html_button.visible = False
download_front_html_button.filename = "hipsterfy_3d_cards.zip"
pn.state.notifications.success("3D STL files generated! Download the ZIP from the sidebar.")
print_instructions.visible = mode_selector.value == "2d"
except Exception as e:
print("Error:", e)
traceback.print_exc()
pn.state.notifications.error(f"Error generating preview: {str(e)}", duration=10000)
finally:
front_cards_column.loading = False
back_cards_column.loading = False
create_preview_button.on_click(create_preview)
# Dynamischer QR-Code für die Player-App
def generate_qr_code_base64(url):
qr = qrcode.QRCode(box_size=4, border=2)
qr.add_data(url)
qr.make(fit=True)
img = qr.make_image(fill_color="black", back_color="white")
buffered = BytesIO()
img.save(buffered, format="PNG")
img_str = base64.b64encode(buffered.getvalue()).decode()
return f''
# Dynamisch: QR-Code aktualisiert sich, wenn die Seite unter einer anderen URL läuft
def player_qr_html():
# pn.state.location.href ist erst nach dem ersten Request gesetzt
if root_url is None:
base_url = pn.state.location.href
# Basis-URL ohne evtl. Pfad/Query
from urllib.parse import urlparse
parsed = urlparse(base_url)
base = f"{parsed.scheme}://{parsed.netloc}"
else:
base = root_url
url = base + "/qr/scan.html"
return generate_qr_code_base64(url)
player_qr_pane = pn.bind(lambda: pn.pane.HTML(player_qr_html(), sizing_mode='stretch_width'))
template = pn.template.FastListTemplate(
title='Hipsterfy',
sidebar=[
player_qr_pane,
pn.pane.HTML(" Select card generation mode:
", sizing_mode='stretch_width'),
pn.pane.HTML(
"""
In 2D mode, you can print the cards directly from your browser. In 3D mode, STL files will be generated for 3d printing will be generated.
""",
sizing_mode='stretch_width'
),
mode_selector,
pn.layout.Divider(),
playlist_instructions, playlist_uri, primary_item, secondary_item, additional_items, card_style,
cards_per_row_widget,
create_preview_button, download_front_html_button, download_back_html_button, print_instructions
],
main=[pn.Row(front_cards_column, back_cards_column, sizing_mode='stretch_width')],
accent_base_color='indigo',
header_background='indigo',
header_color='white'
)
return template