feat: add HTMX web UI for viewing runs and results
- /ui endpoint shows runs list - Auto-detects image vs video content - HTMX polling for running jobs - Dark theme 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
gilesb
207
server.py
207
server.py
@@ -17,7 +17,7 @@ from pathlib import Path
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from typing import Optional
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from fastapi import FastAPI, HTTPException, UploadFile, File
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from fastapi.responses import FileResponse
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from fastapi.responses import FileResponse, HTMLResponse
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from pydantic import BaseModel
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import redis
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@@ -255,6 +255,211 @@ async def upload_to_cache(file: UploadFile = File(...)):
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return {"content_hash": content_hash, "filename": file.filename, "size": len(content)}
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def detect_media_type(cache_path: Path) -> str:
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"""Detect if file is image or video based on magic bytes."""
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with open(cache_path, "rb") as f:
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header = f.read(32)
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# Video signatures
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if header[:4] == b'\x1a\x45\xdf\xa3': # WebM/MKV
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return "video"
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if header[4:8] == b'ftyp': # MP4/MOV
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return "video"
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if header[:4] == b'RIFF' and header[8:12] == b'AVI ': # AVI
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return "video"
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# Image signatures
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if header[:8] == b'\x89PNG\r\n\x1a\n': # PNG
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return "image"
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if header[:2] == b'\xff\xd8': # JPEG
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return "image"
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if header[:6] in (b'GIF87a', b'GIF89a'): # GIF
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return "image"
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if header[:4] == b'RIFF' and header[8:12] == b'WEBP': # WebP
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return "image"
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return "unknown"
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UI_HTML = """
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<!DOCTYPE html>
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<html>
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<head>
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<title>Art DAG L1 Server</title>
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<script src="https://unpkg.com/htmx.org@1.9.10"></script>
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<style>
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* { box-sizing: border-box; }
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body {
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font-family: system-ui, -apple-system, sans-serif;
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margin: 0; padding: 20px;
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background: #111; color: #eee;
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}
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h1 { margin: 0 0 20px 0; color: #fff; }
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.runs { display: flex; flex-direction: column; gap: 12px; }
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.run {
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background: #222; border-radius: 8px; padding: 16px;
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border: 1px solid #333;
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}
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.run-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
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.run-id { font-family: monospace; font-size: 12px; color: #888; }
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.run-recipe { font-weight: bold; font-size: 18px; }
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.status {
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padding: 4px 12px; border-radius: 12px; font-size: 12px; font-weight: 500;
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}
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.status.completed { background: #1a4d1a; color: #4ade80; }
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.status.running { background: #4d4d1a; color: #facc15; }
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.status.failed { background: #4d1a1a; color: #f87171; }
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.status.pending { background: #333; color: #888; }
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.media-container { margin-top: 12px; }
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.media-container img, .media-container video {
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max-width: 100%; max-height: 400px; border-radius: 4px;
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}
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.hash { font-family: monospace; font-size: 11px; color: #666; }
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.info { font-size: 13px; color: #aaa; }
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.refresh-btn {
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background: #333; color: #fff; border: none; padding: 8px 16px;
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border-radius: 4px; cursor: pointer; margin-bottom: 16px;
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}
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.refresh-btn:hover { background: #444; }
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.no-runs { color: #666; font-style: italic; }
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</style>
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</head>
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<body>
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<h1>Art DAG L1 Server</h1>
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<button class="refresh-btn" hx-get="/ui/runs" hx-target="#runs" hx-swap="innerHTML">
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Refresh
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</button>
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<div id="runs" hx-get="/ui/runs" hx-trigger="load" hx-swap="innerHTML">
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Loading...
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</div>
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</body>
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</html>
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"""
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@app.get("/ui", response_class=HTMLResponse)
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async def ui_index():
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"""Web UI for viewing runs."""
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return UI_HTML
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@app.get("/ui/runs", response_class=HTMLResponse)
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async def ui_runs():
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"""HTMX partial: list of runs."""
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runs = list_all_runs()
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if not runs:
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return '<p class="no-runs">No runs yet.</p>'
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html_parts = ['<div class="runs">']
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for run in runs[:20]: # Limit to 20 most recent
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status_class = run.status
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html_parts.append(f'''
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<div class="run" hx-get="/ui/run/{run.run_id}" hx-trigger="every 2s[this.querySelector('.status.running')]" hx-swap="outerHTML">
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<div class="run-header">
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<div>
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<span class="run-recipe">{run.recipe}</span>
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<span class="run-id">{run.run_id}</span>
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</div>
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<span class="status {status_class}">{run.status}</span>
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</div>
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<div class="info">
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Created: {run.created_at[:19].replace('T', ' ')}
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</div>
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''')
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# Show input hash
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if run.inputs:
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html_parts.append(f'<div class="hash">Input: {run.inputs[0][:32]}...</div>')
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# Show output if completed
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if run.status == "completed" and run.output_hash:
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cache_path = CACHE_DIR / run.output_hash
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if cache_path.exists():
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media_type = detect_media_type(cache_path)
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html_parts.append(f'<div class="hash">Output: {run.output_hash[:32]}...</div>')
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html_parts.append('<div class="media-container">')
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if media_type == "video":
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html_parts.append(f'<video src="/cache/{run.output_hash}" controls autoplay muted loop></video>')
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elif media_type == "image":
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html_parts.append(f'<img src="/cache/{run.output_hash}" alt="{run.output_name}">')
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html_parts.append('</div>')
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# Show error if failed
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if run.status == "failed" and run.error:
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html_parts.append(f'<div class="info" style="color: #f87171;">Error: {run.error}</div>')
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html_parts.append('</div>')
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html_parts.append('</div>')
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return '\n'.join(html_parts)
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@app.get("/ui/run/{run_id}", response_class=HTMLResponse)
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async def ui_run_detail(run_id: str):
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"""HTMX partial: single run (for polling updates)."""
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run = load_run(run_id)
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if not run:
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return '<div class="run">Run not found</div>'
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# Check Celery task status if running
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if run.status == "running" and run.celery_task_id:
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task = celery_app.AsyncResult(run.celery_task_id)
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if task.ready():
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if task.successful():
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result = task.result
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run.status = "completed"
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run.completed_at = datetime.now(timezone.utc).isoformat()
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run.output_hash = result.get("output", {}).get("content_hash")
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output_path = Path(result.get("output", {}).get("local_path", ""))
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if output_path.exists():
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cache_file(output_path)
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else:
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run.status = "failed"
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run.error = str(task.result)
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save_run(run)
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status_class = run.status
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poll_attr = 'hx-get="/ui/run/{}" hx-trigger="every 2s" hx-swap="outerHTML"'.format(run_id) if run.status == "running" else ""
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html = f'''
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<div class="run" {poll_attr}>
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<div class="run-header">
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<div>
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<span class="run-recipe">{run.recipe}</span>
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<span class="run-id">{run.run_id}</span>
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</div>
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<span class="status {status_class}">{run.status}</span>
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</div>
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<div class="info">
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Created: {run.created_at[:19].replace('T', ' ')}
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</div>
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'''
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if run.inputs:
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html += f'<div class="hash">Input: {run.inputs[0][:32]}...</div>'
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if run.status == "completed" and run.output_hash:
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cache_path = CACHE_DIR / run.output_hash
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if cache_path.exists():
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media_type = detect_media_type(cache_path)
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html += f'<div class="hash">Output: {run.output_hash[:32]}...</div>'
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html += '<div class="media-container">'
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if media_type == "video":
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html += f'<video src="/cache/{run.output_hash}" controls autoplay muted loop></video>'
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elif media_type == "image":
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html += f'<img src="/cache/{run.output_hash}" alt="{run.output_name}">'
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html += '</div>'
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if run.status == "failed" and run.error:
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html += f'<div class="info" style="color: #f87171;">Error: {run.error}</div>'
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html += '</div>'
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return html
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if __name__ == "__main__":
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import uvicorn
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uvicorn.run(app, host="0.0.0.0", port=8100)
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