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from datetime import datetime
from typing import List
from PyQt5.QtGui import QTextDocument
from PyQt5.QtPrintSupport import QPrinter
from calendar_manager import CalendarManager
from prediction_controller import PredictionController
from date_service import DateService
class PredictionReportService:
"""Service to export the current prediction and entries into a PDF report."""
@staticmethod
def export_pdf(calendar_manager: CalendarManager,
prediction_controller: PredictionController,
out_path: str,
dateformat: str = "dd.MM.yyyy") -> bool:
try:
# Gather data
launch_dt = prediction_controller.get_launch_date()
duration = prediction_controller.get_duration()
prediction_dt = prediction_controller.get_prediction()
entries = calendar_manager.list_entries()
# Format helpers
def fmt_date(dt):
return DateService.format_date_for_display(dt, dateformat) if dt else ""
launch_str = fmt_date(launch_dt)
duration_str = f"{duration.years} Jahre" if duration and hasattr(duration, 'years') else ""
prediction_str = fmt_date(prediction_dt)
# Sum time_periods (months and days separately)
total_months = 0
total_days = 0
for e in entries:
tp = getattr(e, 'time_period', None)
if not tp:
continue
try:
parts = tp.split()
if len(parts) >= 2:
value = int(parts[0])
unit = parts[1].lower()
if value > 0:
if 'monat' in unit:
total_months += value
elif 'tag' in unit:
total_days += value
except Exception:
# Ignore unparsable time_periods
pass
sum_parts = []
if total_months > 0:
sum_parts.append(f"{total_months} Monate")
if total_days > 0:
sum_parts.append(f"{total_days} Tage")
sum_str = ", ".join(sum_parts) if sum_parts else "0"
# Build HTML
created_stamp = datetime.now().strftime('%d.%m.%Y %H:%M:%S')
html = []
html.append("<html><head><meta charset='utf-8'>")
html.append("""
<style>
body { font-family: Arial, sans-serif; color: #222; }
h1 { font-size: 20px; margin-bottom: 6px; }
.meta { margin-bottom: 12px; }
.meta div { margin: 2px 0; }
table { border-collapse: collapse; width: 100%; }
th, td { border: 1px solid #e1e4ee; padding: 4px 6px; vertical-align: top; font-size: 150px; line-height: 1.3; }
th { background: #f5f7fb; text-align: left; }
tfoot td { font-weight: bold; }
.stamp { margin-top: 16px; font-size: 10px; color: #666; }
</style>
""")
html.append("</head><body>")
html.append("<h1>Ausfallzeitenrechner — Bericht</h1>")
html.append("<div class='meta'>")
html.append(f"<div><strong>Promotionsdatum:</strong> {launch_str}</div>")
html.append(f"<div><strong>Bewerbungszeitraum:</strong> {duration_str}</div>")
html.append(f"<div><strong>Bewerbungsfrist:</strong> {prediction_str}</div>")
html.append("</div>")
# Table header
html.append("<table>")
html.append(
"<thead><tr>"
"<th>Beginn</th>"
"<th>Ende</th>"
"<th>Art</th>"
"<th>Kommentar</th>"
"<th>Beginn Anrechnung</th>"
"<th>Ende Anrechnung</th>"
"<th>Anrechnungszeitraum</th>"
"</tr></thead><tbody>"
)
# Rows
for e in entries:
start_text = fmt_date(e.start_date)
end_text = fmt_date(e.end_date)
keyword_text = e.keyword
commentary_text = getattr(e, 'commentary', '') or ''
c_start_text = fmt_date(getattr(e, 'corrected_start_date', None))
c_end_text = fmt_date(getattr(e, 'corrected_end_date', None))
time_text = getattr(e, 'time_period', '') or ''
# Escape
def esc(s: str) -> str:
return (s.replace('&', '&')
.replace('<', '<')
.replace('>', '>'))
html.append(
f"<tr><td>{esc(start_text)}</td>"
f"<td>{esc(end_text)}</td>"
f"<td>{esc(keyword_text)}</td>"
f"<td>{esc(commentary_text)}</td>"
f"<td>{esc(c_start_text)}</td>"
f"<td>{esc(c_end_text)}</td>"
f"<td>{esc(time_text)}</td></tr>"
)
html.append("</tbody>")
html.append(f"<tfoot><tr><td colspan='7'>Summe Anrechnungszeitraum: {sum_str}</td></tr></tfoot>")
html.append("</table>")
html.append(f"<div class='stamp'>Erstellt am: {created_stamp}</div>")
html.append("</body></html>")
# Ensure extension
if not out_path.lower().endswith('.pdf'):
out_path = out_path + '.pdf'
# Render HTML to PDF
printer = QPrinter(QPrinter.HighResolution)
printer.setOutputFormat(QPrinter.PdfFormat)
printer.setOutputFileName(out_path)
# Try to set margins (not all bindings support Millimeter overload)
try:
printer.setPageMargins(12, 12, 12, 12, QPrinter.Millimeter)
except Exception:
pass
doc = QTextDocument()
doc.setHtml("".join(html))
doc.print_(printer)
return True
except Exception as e:
print(f"Error exporting PDF: {e}")
return False
|
