feat: Meeting Assistant MVP - Complete implementation
Enterprise Meeting Knowledge Management System with: Backend (FastAPI): - Authentication proxy with JWT (pj-auth-api integration) - MySQL database with 4 tables (users, meetings, conclusions, actions) - Meeting CRUD with system code generation (C-YYYYMMDD-XX, A-YYYYMMDD-XX) - Dify LLM integration for AI summarization - Excel export with openpyxl - 20 unit tests (all passing) Client (Electron): - Login page with company auth - Meeting list with create/delete - Meeting detail with real-time transcription - Editable transcript textarea (single block, easy editing) - AI summarization with conclusions/action items - 5-second segment recording (efficient for long meetings) Sidecar (Python): - faster-whisper medium model with int8 quantization - ONNX Runtime VAD (lightweight, ~20MB vs PyTorch ~2GB) - Chinese punctuation processing - OpenCC for Traditional Chinese conversion - Anti-hallucination parameters - Auto-cleanup of temp audio files OpenSpec: - add-meeting-assistant-mvp (47 tasks, archived) - add-realtime-transcription (29 tasks, archived) 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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backend/app/routers/export.py
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177
backend/app/routers/export.py
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from fastapi import APIRouter, HTTPException, Depends
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from fastapi.responses import StreamingResponse
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from openpyxl import Workbook, load_workbook
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from openpyxl.styles import Font, Alignment, Border, Side
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import io
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import os
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from ..database import get_db_cursor
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from ..models import TokenPayload
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from .auth import get_current_user, is_admin
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router = APIRouter()
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TEMPLATE_DIR = os.path.join(os.path.dirname(__file__), "..", "templates")
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def create_default_workbook(meeting: dict, conclusions: list, actions: list) -> Workbook:
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"""Create Excel workbook with meeting data."""
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wb = Workbook()
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ws = wb.active
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ws.title = "Meeting Record"
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# Styles
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header_font = Font(bold=True, size=14)
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label_font = Font(bold=True)
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thin_border = Border(
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left=Side(style="thin"),
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right=Side(style="thin"),
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top=Side(style="thin"),
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bottom=Side(style="thin"),
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)
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# Title
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ws.merge_cells("A1:F1")
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ws["A1"] = "Meeting Record"
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ws["A1"].font = Font(bold=True, size=16)
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ws["A1"].alignment = Alignment(horizontal="center")
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# Metadata section
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row = 3
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metadata = [
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("Subject", meeting.get("subject", "")),
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("Date/Time", str(meeting.get("meeting_time", ""))),
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("Location", meeting.get("location", "")),
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("Chairperson", meeting.get("chairperson", "")),
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("Recorder", meeting.get("recorder", "")),
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("Attendees", meeting.get("attendees", "")),
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]
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for label, value in metadata:
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ws[f"A{row}"] = label
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ws[f"A{row}"].font = label_font
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ws.merge_cells(f"B{row}:F{row}")
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ws[f"B{row}"] = value
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row += 1
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# Conclusions section
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row += 1
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ws.merge_cells(f"A{row}:F{row}")
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ws[f"A{row}"] = "Conclusions"
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ws[f"A{row}"].font = header_font
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row += 1
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ws[f"A{row}"] = "Code"
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ws[f"B{row}"] = "Content"
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ws[f"A{row}"].font = label_font
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ws[f"B{row}"].font = label_font
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row += 1
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for c in conclusions:
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ws[f"A{row}"] = c.get("system_code", "")
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ws.merge_cells(f"B{row}:F{row}")
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ws[f"B{row}"] = c.get("content", "")
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row += 1
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# Action Items section
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row += 1
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ws.merge_cells(f"A{row}:F{row}")
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ws[f"A{row}"] = "Action Items"
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ws[f"A{row}"].font = header_font
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row += 1
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headers = ["Code", "Content", "Owner", "Due Date", "Status"]
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for col, header in enumerate(headers, 1):
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cell = ws.cell(row=row, column=col, value=header)
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cell.font = label_font
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cell.border = thin_border
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row += 1
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for a in actions:
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ws.cell(row=row, column=1, value=a.get("system_code", "")).border = thin_border
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ws.cell(row=row, column=2, value=a.get("content", "")).border = thin_border
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ws.cell(row=row, column=3, value=a.get("owner", "")).border = thin_border
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ws.cell(row=row, column=4, value=str(a.get("due_date", "") or "")).border = thin_border
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ws.cell(row=row, column=5, value=a.get("status", "")).border = thin_border
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row += 1
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# Adjust column widths
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ws.column_dimensions["A"].width = 18
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ws.column_dimensions["B"].width = 40
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ws.column_dimensions["C"].width = 15
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ws.column_dimensions["D"].width = 12
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ws.column_dimensions["E"].width = 12
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ws.column_dimensions["F"].width = 12
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return wb
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@router.get("/meetings/{meeting_id}/export")
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async def export_meeting(
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meeting_id: int, current_user: TokenPayload = Depends(get_current_user)
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):
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"""Export meeting to Excel file."""
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with get_db_cursor() as cursor:
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cursor.execute(
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"SELECT * FROM meeting_records WHERE meeting_id = %s", (meeting_id,)
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)
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meeting = cursor.fetchone()
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if not meeting:
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raise HTTPException(status_code=404, detail="Meeting not found")
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# Check access
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if not is_admin(current_user):
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if (
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meeting["created_by"] != current_user.email
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and meeting["recorder"] != current_user.email
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and current_user.email not in (meeting["attendees"] or "")
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):
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raise HTTPException(status_code=403, detail="Access denied")
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# Get conclusions
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cursor.execute(
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"SELECT * FROM meeting_conclusions WHERE meeting_id = %s", (meeting_id,)
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)
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conclusions = cursor.fetchall()
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# Get action items
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cursor.execute(
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"SELECT * FROM meeting_action_items WHERE meeting_id = %s", (meeting_id,)
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)
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actions = cursor.fetchall()
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# Check for custom template
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template_path = os.path.join(TEMPLATE_DIR, "template.xlsx")
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if os.path.exists(template_path):
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wb = load_workbook(template_path)
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ws = wb.active
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# Replace placeholders
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for row in ws.iter_rows():
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for cell in row:
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if cell.value and isinstance(cell.value, str):
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cell.value = (
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cell.value.replace("{{subject}}", meeting.get("subject", ""))
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.replace("{{time}}", str(meeting.get("meeting_time", "")))
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.replace("{{location}}", meeting.get("location", ""))
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.replace("{{chair}}", meeting.get("chairperson", ""))
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.replace("{{recorder}}", meeting.get("recorder", ""))
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.replace("{{attendees}}", meeting.get("attendees", ""))
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)
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else:
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# Use default template
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wb = create_default_workbook(meeting, conclusions, actions)
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# Save to bytes buffer
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buffer = io.BytesIO()
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wb.save(buffer)
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buffer.seek(0)
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filename = f"meeting_{meeting.get('uuid', meeting_id)}.xlsx"
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return StreamingResponse(
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buffer,
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media_type="application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
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headers={"Content-Disposition": f'attachment; filename="{filename}"'},
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)
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