Add browser-based web MVP with mobile upload flow

web/app.py

@@ -0,0 +1,111 @@
+#!/usr/bin/env python3
+"""
+Web-MVP für PDF zu ICS Konverter
+"""
+
+import re
+import sys
+import tempfile
+from pathlib import Path
+import os
+
+from fastapi import FastAPI, File, Form, Request, UploadFile
+from fastapi.responses import FileResponse, HTMLResponse
+from fastapi.templating import Jinja2Templates
+from starlette.background import BackgroundTask
+
+PROJECT_ROOT = Path(__file__).resolve().parent.parent
+if str(PROJECT_ROOT) not in sys.path:
+    sys.path.insert(0, str(PROJECT_ROOT))
+
+from pdf_to_ics import create_ics_from_dienstplan, extract_dienstplan_data
+
+app = FastAPI(title="PDF zu ICS Web")
+templates = Jinja2Templates(directory=str(Path(__file__).parent / "templates"))
+
+
+@app.get("/", response_class=HTMLResponse)
+def index(request: Request):
+    return templates.TemplateResponse(
+        "index.html",
+        {
+            "request": request,
+            "error": None,
+        },
+    )
+
+
+@app.post("/convert")
+async def convert_pdf(
+    request: Request,
+    file: UploadFile = File(...),
+    exclude_rest: bool = Form(False),
+    exclude_vacation: bool = Form(False),
+):
+    filename = file.filename or "dienstplan.pdf"
+    if not filename.lower().endswith(".pdf"):
+        return templates.TemplateResponse(
+            "index.html",
+            {
+                "request": request,
+                "error": "Bitte eine PDF-Datei hochladen.",
+            },
+            status_code=400,
+        )
+
+    data = await file.read()
+    if not data:
+        return templates.TemplateResponse(
+            "index.html",
+            {
+                "request": request,
+                "error": "Die Datei ist leer.",
+            },
+            status_code=400,
+        )
+
+    with tempfile.TemporaryDirectory(prefix="pdf_to_ics_web_") as temp_dir:
+        temp_dir_path = Path(temp_dir)
+        pdf_path = temp_dir_path / "upload.pdf"
+        pdf_path.write_bytes(data)
+
+        dienstplan = extract_dienstplan_data(str(pdf_path))
+        if not dienstplan.get("events"):
+            return templates.TemplateResponse(
+                "index.html",
+                {
+                    "request": request,
+                    "error": "Keine Dienstplan-Events in der PDF gefunden.",
+                },
+                status_code=422,
+            )
+
+        safe_name = re.sub(r"[^A-Za-z0-9._-]", "_", Path(filename).stem)
+        ics_filename = f"{safe_name}.ics"
+        ics_path = temp_dir_path / ics_filename
+
+        create_ics_from_dienstplan(
+            dienstplan,
+            str(ics_path),
+            exclude_rest=exclude_rest,
+            exclude_vacation=exclude_vacation,
+        )
+
+        content = ics_path.read_bytes()
+
+    response_tmp = tempfile.NamedTemporaryFile(delete=False, suffix=".ics", prefix="pdf_to_ics_out_")
+    response_tmp.write(content)
+    response_tmp.close()
+
+    return FileResponse(
+        path=response_tmp.name,
+        media_type="text/calendar",
+        filename=ics_filename,
+        headers={"Cache-Control": "no-store"},
+        background=BackgroundTask(lambda path: os.remove(path) if os.path.exists(path) else None, response_tmp.name),
+    )
+
+
+@app.get("/health")
+def health():
+    return {"status": "ok"}