SlideAI / app.py
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import os
import tempfile
import traceback
import gradio as gr
from slide_generator import generate_presentation
from pptx_builder import build_pptx
STYLES = ["Professional", "Creative", "Academic", "Startup"]
CSS = """
* { box-sizing: border-box; }
body, .gradio-container {
background: #f0f7f4 !important;
font-family: 'Inter', system-ui, sans-serif !important;
}
footer { display: none !important; }
.header-block {
background: linear-gradient(135deg, #1b6ca8 0%, #19a88a 100%);
border-radius: 16px; padding: 32px 36px 28px; margin-bottom: 24px;
}
button.primary {
background: linear-gradient(135deg, #1b6ca8, #19a88a) !important;
color: #fff !important; border: none !important;
border-radius: 12px !important; font-size: 17px !important;
font-weight: 700 !important; padding: 16px 0 !important;
width: 100% !important; cursor: pointer !important;
box-shadow: 0 4px 16px rgba(25,168,138,0.3) !important;
}
button.primary:hover { opacity: .87 !important; }
textarea, input[type="text"] {
background: #f5fbf9 !important; border: 1.5px solid #b2ddd1 !important;
border-radius: 10px !important; color: #1a3a3a !important; font-size: 14px !important;
}
input[type="range"] { accent-color: #19a88a !important; }
.status-ok {
background: #e6f7f2; border: 1px solid #a8dfd0; border-radius: 10px;
padding: 12px 18px; font-size: 14px; color: #1a5a4a; margin-bottom: 8px;
}
.status-wait {
background: #f0f7ff; border: 1px solid #b2cfe8; border-radius: 10px;
padding: 12px 18px; font-size: 14px; color: #1a3a6a; margin-bottom: 8px;
}
.preview-md, .preview-md p, .preview-md li,
.preview-md h1, .preview-md h2, .preview-md h3 { color: #0d1b2a !important; }
.preview-md {
background: #f5fbf9 !important; border: 1px solid #c8e8df !important;
border-radius: 12px !important; padding: 16px 20px !important;
min-height: 220px !important; max-height: 420px !important;
overflow-y: auto !important; font-size: 14px !important; line-height: 1.75 !important;
}
.preview-md h1 { color: #1b6ca8 !important; font-size: 18px !important; }
.preview-md h3 { color: #19a88a !important; font-size: 14px !important; margin: 10px 0 4px !important; }
.preview-md blockquote { border-left: 3px solid #19a88a; padding-left: 10px; }
.preview-md em { color: #5a8a8a !important; font-size: 12px !important; }
"""
def format_preview(data):
lines = [f"# {data.get('title','')}", ""]
if data.get("subtitle"):
lines += [f"*{data['subtitle']}*", ""]
lines.append("---")
for slide in data.get("slides", []):
num = slide.get("slide_number", "")
title = slide.get("title", "")
kw = slide.get("image_keyword", "")
if slide.get("type") == "title":
lines.append(f"\n### 🎯 Slide {num}{title}")
if slide.get("subtitle"):
lines.append(f"> {slide['subtitle']}")
else:
lines.append(f"\n### 📄 Slide {num}{title}")
if kw:
lines.append(f"*📸 Image: {kw}*")
for b in slide.get("bullets", []):
lines.append(f"- {b}")
if slide.get("speaker_notes"):
lines.append(f"\n*🗒 {slide['speaker_notes']}*")
return "\n".join(lines)
def generate_and_download(topic, audience, style, num_slides, key_points,
progress=gr.Progress()):
if not topic.strip():
raise gr.Error("Please enter a topic.")
if not audience.strip():
raise gr.Error("Please enter the target audience.")
try:
progress(0.1, desc="AI is writing your slides…")
data = generate_presentation(
topic=topic.strip(), style=style, num_slides=int(num_slides),
audience=audience.strip(), key_points=key_points.strip(),
)
progress(0.65, desc="Fetching images & building PPTX…")
pptx_bytes = build_pptx(data, style)
tmp_dir = tempfile.mkdtemp()
safe = topic[:30].replace(" ", "_").replace("/", "-")
out_path = os.path.join(tmp_dir, f"{safe}.pptx")
with open(out_path, "wb") as f:
f.write(pptx_bytes)
progress(1.0, desc="Done!")
n = len(data.get("slides", []))
status = f"<div class='status-ok'>✅ <strong>{n} slides</strong> with images — download below!</div>"
return format_preview(data), out_path, status
except gr.Error:
raise
except Exception:
raise gr.Error(traceback.format_exc())
with gr.Blocks(title="SlideAI", css=CSS) as demo:
gr.HTML("""
<div class="header-block">
<h1 style="margin:0;font-size:28px;font-weight:800;color:#fff;">SlideAI</h1>
<p style="margin:6px 0 0;font-size:14px;color:rgba(255,255,255,.88);">
Turn any topic into a polished, image-rich, download-ready presentation.
</p>
</div>""")
with gr.Row():
with gr.Column(scale=1, min_width=300):
topic = gr.Textbox(label="Topic *", placeholder="e.g. Climate Change…", lines=2)
audience = gr.Textbox(label="Target Audience *", placeholder="e.g. Students…", lines=1)
with gr.Row():
style = gr.Dropdown(choices=STYLES, value="Professional", label="Style", scale=1)
num_slides = gr.Slider(minimum=5, maximum=15, step=1, value=8, label="Slides", scale=1)
key_points = gr.Textbox(label="Key Points (optional)",
placeholder="Specific facts or ideas to include…", lines=2)
btn = gr.Button("✨ Generate Presentation", variant="primary", size="lg")
with gr.Column(scale=2, min_width=380):
status = gr.HTML("<div class='status-wait'>Fill in the form and hit <strong>Generate</strong>.</div>")
preview = gr.Markdown(elem_classes=["preview-md"])
download = gr.File(label="📥 Download your PPTX", interactive=False)
btn.click(fn=generate_and_download,
inputs=[topic, audience, style, num_slides, key_points],
outputs=[preview, download, status])
if __name__ == "__main__":
demo.launch()