[32788f42] feat(list-generator): create React app and FastAPI backend for PDF list generation

list-generator/backend/app/main.py

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+from fastapi import FastAPI
+from fastapi.middleware.cors import CORSMiddleware
+from .routers import generate
+
+app = FastAPI(title="List Generator API")
+
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=["*"],
+    allow_credentials=True,
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
+
+app.include_router(generate.router, prefix="/api")
+
+@app.get("/health")
+def health_check():
+    return {"status": "ok"}

list-generator/backend/app/routers/generate.py

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+from fastapi import APIRouter, File, UploadFile, Form, HTTPException
+from fastapi.responses import FileResponse
+from typing import Optional
+import os
+import shutil
+import tempfile
+from ..services.pdf_generator import generate_school_pdf
+
+router = APIRouter()
+
+@router.post("/generate-list")
+async def generate_list(
+    institution: str = Form(...),
+    date_info: str = Form(...),
+    list_type: str = Form("k"),
+    students_file: UploadFile = File(...),
+    families_file: Optional[UploadFile] = File(None)
+):
+    try:
+        with tempfile.TemporaryDirectory() as temp_dir:
+            students_path = os.path.join(temp_dir, "students.csv")
+            with open(students_path, "wb") as buffer:
+                shutil.copyfileobj(students_file.file, buffer)
+            families_path = None
+            if families_file:
+                families_path = os.path.join(temp_dir, "families.csv")
+                with open(families_path, "wb") as buffer:
+                    shutil.copyfileobj(families_file.file, buffer)
+            pdf_path = generate_school_pdf(
+                institution=institution,
+                date_info=date_info,
+                list_type=list_type,
+                students_csv_path=students_path,
+                families_csv_path=families_path,
+                output_dir=temp_dir
+            )
+            if not pdf_path or not os.path.exists(pdf_path):
+                raise HTTPException(status_code=500, detail="PDF generation failed")
+            with open(pdf_path, "rb") as f:
+                pdf_bytes = f.read()
+            final_output_path = os.path.join("/tmp", os.path.basename(pdf_path))
+            with open(final_output_path, "wb") as f:
+                f.write(pdf_bytes)
+            return FileResponse(path=final_output_path, filename=os.path.basename(pdf_path), media_type="application/pdf")
+    except Exception as e:
+        raise HTTPException(status_code=500, detail=str(e))

list-generator/backend/app/services/pdf_generator.py

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+import pandas as pd
+import os
+from jinja2 import Environment, FileSystemLoader
+from weasyprint import HTML
+import datetime
+
+def generate_school_pdf(institution: str, date_info: str, list_type: str, students_csv_path: str, families_csv_path: str = None, output_dir: str = "/tmp") -> str:
+    # Read CSV data
+    df = pd.read_csv(students_csv_path, sep=";")
+    # Clean column names
+    df.columns = df.columns.str.strip()
+
+    # Group by class
+    grouped = df.groupby("Klasse")
+    class_data = []
+    for class_name, group in grouped:
+        students = group.to_dict("records")
+        class_data.append({"name": class_name, "students": students})
+
+    # Prepare summary data
+    class_counts = [{"name": c, "count": len(g)} for c, g in grouped]
+    total_students = sum(c["count"] for c in class_counts)
+
+    # Setup Jinja2 environment
+    template_dir = os.path.join(os.path.dirname(__file__), "..", "templates")
+    env = Environment(loader=FileSystemLoader(template_dir))
+    template = env.get_template("school_list.html")
+
+    # Render HTML
+    current_time = datetime.datetime.now().strftime("%d.%m.%Y %H:%M Uhr")
+    html_out = template.render(
+        institution=institution,
+        date_info=date_info,
+        class_counts=class_counts,
+        total_students=total_students,
+        class_data=class_data,
+        current_time=current_time
+    )
+
+    # Generate PDF
+    output_filename = f"Listen_{institution.replace( , _)}_{list_type}_{datetime.datetime.now().strftime(%Y-%m-%d_%H-%M)}.pdf"
+    output_path = os.path.join(output_dir, output_filename)
+    HTML(string=html_out).write_pdf(output_path)
+
+    return output_path

list-generator/backend/app/templates/school_list.html

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+<!DOCTYPE html>
+<html><head><meta charset="utf-8"><style>
+    @page { size: A4 portrait; margin: 20mm; }
+    body { font-family: sans-serif; font-size: 11pt; }
+    .header { margin-bottom: 20px; }
+    .institution-name { font-weight: bold; font-size: 14pt; }
+    .date-info { font-size: 12pt; }
+    .summary { margin-top: 30px; }
+    .summary h2 { font-size: 12pt; font-weight: normal; margin-bottom: 10px; }
+    .summary-table { width: 100%; border-collapse: collapse; margin-bottom: 20px; }
+    .summary-table td { padding: 4px 0; }
+    .summary-total { margin-top: 10px; border-top: 1px solid black; padding-top: 10px; font-weight: bold; }
+    .class-section { page-break-before: always; }
+    .student-table { width: 100%; border-collapse: collapse; margin-top: 30px; }
+    .student-table th { text-align: left; border-bottom: 1px solid black; padding-bottom: 5px; font-weight: normal; }
+    .student-table td { padding: 5px 0; }
+    .class-summary { margin-top: 30px; font-weight: bold; }
+    .class-note { margin-top: 20px; font-size: 10pt; }
+    .footer { position: fixed; bottom: 0; left: 0; right: 0; display: flex; justify-content: space-between; font-size: 10pt; }
+    .footer-left { text-align: left; }
+    .footer-right { text-align: right; white-space: pre-wrap; }
+</style></head><body>
+<div class="header"><div class="institution-name">{{ institution }}</div><div class="date-info">{{ date_info }}</div></div>
+<div class="summary"><h2>Übersicht der Anmeldungen:</h2><table class="summary-table">
+    {% for count in class_counts %}
+    <tr><td style="width: 50%;">Klasse {{ count.name }}</td><td>{{ count.count }} Anmeldungen</td></tr>
+    {% endfor %}
+</table><div class="summary-total">Gesamt: {{ total_students }} Anmeldungen</div></div>
+{% for class_info in class_data %}
+<div class="class-section">
+    <div class="header"><div class="institution-name">{{ institution }}</div><div class="date-info">{{ date_info }}</div></div>
+    <table class="student-table"><thead><tr><th style="width: 40%">Nachname</th><th style="width: 40%">Vorname</th><th style="width: 20%">Klasse</th></tr></thead><tbody>
+        {% for student in class_info.students %}
+        <tr><td>{{ student.Nachname }}</td><td>{{ student.Vorname }}</td><td>{{ student.Klasse }}</td></tr>
+        {% endfor %}
+    </tbody></table>
+    <div class="class-summary">{{ class_info.students|length }} angemeldete Kinder</div>
+    <div class="class-note">Dies ist die Liste der bereits angemeldeten Schüler. Bitte die noch fehlenden<br>Schüler an die Anmeldung erinnern.</div>
+</div>
+{% endfor %}
+<div class="footer"><div class="footer-left">Stand {{ current_time }}</div><div class="footer-right">Kinderfotos Erding\nGartenstr. 10 85445 Oberding\nwww.kinderfotos-erding.de\n08122-8470867</div></div>
+</body></html>