119 lines
4.8 KiB
Python
119 lines
4.8 KiB
Python
from typing import List, Dict
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import pandas as pd
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from datetime import datetime
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from pathlib import Path
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from jinja2 import Environment, FileSystemLoader
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from weasyprint import HTML
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import logging
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import asyncio
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from app.schemas.file import FileInDB
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from app.services.base_service import BaseService
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from sqlalchemy.orm import Session
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logger = logging.getLogger(__name__)
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class PullSheetService(BaseService):
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def __init__(self):
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super().__init__(None)
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self.template_dir = Path("app/data/assets/templates")
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self.env = Environment(loader=FileSystemLoader(str(self.template_dir)))
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self.template = self.env.get_template("pull_sheet.html")
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async def get_or_create_rendered_pull_sheet(self, db: Session, order_ids: list[str]) -> FileInDB:
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# get file service
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file_service = self.get_service('file')
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# check if rendered pull sheet exists
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rendered_pull_sheet = await file_service.get_file_by_metadata(db, "order_ids", order_ids, "rendered_pull_sheet", "application/pdf")
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if rendered_pull_sheet:
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return rendered_pull_sheet
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# check if pull sheet data file exists
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pull_sheet_data_file = await file_service.get_file_by_metadata(db, "order_ids", order_ids, "pull_sheet", "text/csv")
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if pull_sheet_data_file:
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# generate pdf from pull sheet data file
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return await self.generate_pull_sheet_pdf(db, pull_sheet_data_file)
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# if no pull sheet data file exists, get it from order management service
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order_service = self.get_service('order_management')
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pull_sheet_data_file = await order_service.get_pull_sheet(db, order_ids)
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return await self.generate_pull_sheet_pdf(db, pull_sheet_data_file)
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async def generate_pull_sheet_pdf(self, db: Session, file: FileInDB) -> FileInDB:
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"""Generate a PDF pull sheet from a CSV file.
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Args:
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file: FileInDB object containing the pull sheet data
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Returns:
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Path to the generated PDF file
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"""
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try:
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# Read and process CSV data
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items = await self._read_and_process_csv(file.path)
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# Prepare template data
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template_data = {
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'items': items,
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'generation_date': datetime.now().strftime("%Y-%m-%d %H:%M:%S")
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}
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# Render HTML
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html_content = self.template.render(**template_data)
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# Ensure metadata is properly formatted
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metadata = file.file_metadata.copy() if file.file_metadata else {}
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if 'order_ids' in metadata:
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metadata['order_ids'] = sorted(metadata['order_ids'])
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file_service = self.get_service('file')
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return await file_service.save_file(
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db=db,
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file_data=html_content,
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filename=f"rendered_pull_sheet_{datetime.now().strftime('%Y%m%d_%H%M%S')}.pdf",
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subdir="tcgplayer/pull_sheets/rendered",
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file_type="rendered_pull_sheet",
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content_type="application/pdf",
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metadata=metadata,
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html_content=True # This tells FileService to convert HTML to PDF
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)
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except Exception as e:
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logger.error(f"Error generating pull sheet PDF: {str(e)}")
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raise
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async def _read_and_process_csv(self, csv_path: str) -> List[Dict]:
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"""Read and process CSV data using pandas.
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Args:
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csv_path: Path to the CSV file
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Returns:
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List of processed items
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"""
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# Read CSV into pandas DataFrame in a separate thread to avoid blocking
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df = await asyncio.get_event_loop().run_in_executor(
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None,
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lambda: pd.read_csv(csv_path)
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)
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# Filter out the "Orders Contained in Pull Sheet" row
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df = df[df['Product Line'] != 'Orders Contained in Pull Sheet:'].copy()
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# Convert Set Release Date to datetime
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df['Set Release Date'] = pd.to_datetime(df['Set Release Date'], format='%m/%d/%Y %H:%M:%S')
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# Sort by Set Release Date (descending) and then Product Name (ascending)
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df = df.sort_values(['Set Release Date', 'Set', 'Product Name'], ascending=[False, True, True])
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# Convert to list of dictionaries
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items = []
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for _, row in df.iterrows():
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items.append({
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'product_name': row['Product Name'],
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'condition': row['Condition'],
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'quantity': str(int(row['Quantity'])), # Convert to string for template
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'set': row['Set'],
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'rarity': row['Rarity'],
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'card_number': str(int(row['Number'])) if 'Number' in row else ''
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})
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return items |