395 lines
14 KiB
Python
395 lines
14 KiB
Python
import csv
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import datetime
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import os
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import tempfile
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import zipfile
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from typing import Dict, List, Optional
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from django.conf import settings
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from django.utils import timezone
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from django.utils.dateparse import parse_datetime
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from django.utils.translation import gettext as _
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from loguru import logger
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from catalog.common.sites import SiteManager
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from catalog.models import Edition, IdType, Item, ItemCategory
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from journal.models import Mark, Note, Review, ShelfType
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from users.models import Task
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class CsvImporter(Task):
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class Meta:
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app_label = "journal" # workaround bug in TypedModel
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TaskQueue = "import"
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DefaultMetadata = {
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"total": 0,
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"processed": 0,
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"skipped": 0,
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"imported": 0,
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"failed": 0,
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"failed_items": [],
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"file": None,
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"visibility": 0,
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}
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def get_item_by_info_and_links(
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self, title: str, info_str: str, links_str: str
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) -> Optional[Item]:
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"""Find an item based on information from CSV export.
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Args:
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title: Item title
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info_str: Item info string (space-separated key:value pairs)
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links_str: Space-separated URLs
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Returns:
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Item if found, None otherwise
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"""
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site_url = settings.SITE_INFO["site_url"] + "/"
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links = links_str.strip().split()
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for link in links:
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if link.startswith("/") or link.startswith(site_url):
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item = Item.get_by_url(link)
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if item:
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return item
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for link in links:
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site = SiteManager.get_site_by_url(link)
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if site:
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site.get_resource_ready()
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item = site.get_item()
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if item:
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return item
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# Try using the info string
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if info_str:
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info_dict = {}
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for pair in info_str.strip().split():
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if ":" in pair:
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key, value = pair.split(":", 1)
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info_dict[key] = value
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# Check for ISBN, IMDB, etc.
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item = None
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for key, value in info_dict.items():
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if key == "isbn" and value:
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item = Edition.objects.filter(
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primary_lookup_id_type=IdType.ISBN,
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primary_lookup_id_value=value,
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).first()
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elif key == "imdb" and value:
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item = Item.objects.filter(
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primary_lookup_id_type=IdType.IMDB,
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primary_lookup_id_value=value,
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).first()
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if item:
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return item
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return None
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def parse_tags(self, tags_str: str) -> List[str]:
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"""Parse space-separated tags string into a list of tags."""
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if not tags_str:
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return []
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return [tag.strip() for tag in tags_str.split() if tag.strip()]
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def parse_info(self, info_str: str) -> Dict[str, str]:
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"""Parse info string into a dictionary."""
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info_dict = {}
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if not info_str:
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return info_dict
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for pair in info_str.split():
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if ":" in pair:
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key, value = pair.split(":", 1)
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info_dict[key] = value
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return info_dict
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def parse_datetime(self, timestamp_str: str) -> Optional[datetime.datetime]:
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"""Parse ISO format timestamp into datetime."""
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if not timestamp_str:
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return None
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try:
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dt = parse_datetime(timestamp_str)
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if dt and dt.tzinfo is None:
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dt = dt.replace(tzinfo=datetime.UTC)
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return dt
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except Exception as e:
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logger.error(f"Error parsing datetime {timestamp_str}: {e}")
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return None
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def parse_shelf_type(self, status_str: str) -> ShelfType:
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"""Parse shelf type string into ShelfType enum."""
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if not status_str:
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return ShelfType.WISHLIST
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status_map = {
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"wishlist": ShelfType.WISHLIST,
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"progress": ShelfType.PROGRESS,
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"complete": ShelfType.COMPLETE,
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"dropped": ShelfType.DROPPED,
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}
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return status_map.get(status_str.lower(), ShelfType.WISHLIST)
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def import_mark(self, row: Dict[str, str]) -> bool:
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"""Import a mark from a CSV row."""
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try:
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item = self.get_item_by_info_and_links(
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row.get("title", ""), row.get("info", ""), row.get("links", "")
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)
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if not item:
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logger.error(f"Could not find item: {row.get('links', '')}")
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self.metadata["failed_items"].append(
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f"Could not find item: {row.get('links', '')}"
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)
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return False
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owner = self.user.identity
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mark = Mark(owner, item)
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shelf_type = self.parse_shelf_type(row.get("status", ""))
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rating_grade = None
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if "rating" in row and row["rating"]:
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try:
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rating_grade = int(float(row["rating"]))
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except (ValueError, TypeError):
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pass
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comment_text = row.get("comment", "")
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tags = self.parse_tags(row.get("tags", ""))
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# Parse timestamp
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created_time = (
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self.parse_datetime(row.get("timestamp", "")) or timezone.now()
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)
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if (
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mark.shelf_type
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and mark.created_time
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and mark.created_time >= created_time
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):
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# skip if existing mark is newer
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self.metadata["skipped"] = self.metadata.get("skipped", 0) + 1
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return True
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# Update the mark
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mark.update(
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shelf_type,
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comment_text=comment_text,
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rating_grade=rating_grade,
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tags=tags,
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created_time=created_time,
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visibility=self.metadata.get("visibility", 0),
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)
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return True
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except Exception as e:
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logger.error(f"Error importing mark: {e}")
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self.metadata["failed_items"].append(
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f"Error importing mark for {row.get('title', '')}"
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)
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return False
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def import_review(self, row: Dict[str, str]) -> bool:
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"""Import a review from a CSV row."""
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try:
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item = self.get_item_by_info_and_links(
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row.get("title", ""), row.get("info", ""), row.get("links", "")
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)
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if not item:
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logger.error(f"Could not find item for review: {row.get('links', '')}")
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self.metadata["failed_items"].append(
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f"Could not find item for review: {row.get('links', '')}"
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)
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return False
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owner = self.user.identity
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review_title = row.get("title", "") # Second "title" field is review title
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review_content = row.get("content", "")
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# Parse timestamp
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created_time = self.parse_datetime(row.get("timestamp", ""))
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# Check if there's an existing review with the same or newer timestamp
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existing_review = Review.objects.filter(
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owner=owner, item=item, title=review_title
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).first()
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# Skip if existing review is newer or same age
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if (
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existing_review
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and existing_review.created_time
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and created_time
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and existing_review.created_time >= created_time
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):
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logger.debug(
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f"Skipping review import for {item.display_title}: existing review is newer or same age"
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)
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self.metadata["skipped"] = self.metadata.get("skipped", 0) + 1
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return True
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# Create/update the review
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Review.update_item_review(
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item,
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owner,
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review_title,
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review_content,
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created_time=created_time,
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visibility=self.metadata.get("visibility", 0),
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)
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return True
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except Exception as e:
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logger.error(f"Error importing review: {e}")
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self.metadata["failed_items"].append(
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f"Error importing review for {row.get('title', '')}: {str(e)}"
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)
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return False
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def import_note(self, row: Dict[str, str]) -> bool:
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"""Import a note from a CSV row."""
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try:
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item = self.get_item_by_info_and_links(
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row.get("title", ""), row.get("info", ""), row.get("links", "")
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)
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if not item:
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logger.error(f"Could not find item for note: {row.get('links', '')}")
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self.metadata["failed_items"].append(
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f"Could not find item for note: {row.get('links', '')}"
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)
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return False
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owner = self.user.identity
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title = row.get("title", "") # Second "title" field is note title
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content = row.get("content", "")
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progress = row.get("progress", "")
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# Parse timestamp
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created_time = self.parse_datetime(row.get("timestamp", ""))
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# Extract progress information
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pt, pv = Note.extract_progress(progress)
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# Check if a note with the same attributes already exists
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existing_notes = Note.objects.filter(
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item=item,
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owner=owner,
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title=title,
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progress_type=pt,
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progress_value=pv,
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)
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# If we have an exact content match, skip this import
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for existing_note in existing_notes:
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if existing_note.content == content:
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logger.debug(
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f"Skipping note import for {item.display_title}: duplicate note found"
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)
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self.metadata["skipped"] = self.metadata.get("skipped", 0) + 1
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return True
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# Create the note if no duplicate is found
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Note.objects.create(
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item=item,
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owner=owner,
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title=title,
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content=content,
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progress_type=pt,
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progress_value=pv,
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created_time=created_time,
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visibility=self.metadata.get("visibility", 0),
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)
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return True
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except Exception as e:
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logger.error(f"Error importing note: {e}")
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if "failed_items" not in self.metadata:
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self.metadata["failed_items"] = []
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self.metadata["failed_items"].append(
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f"Error importing note for {row.get('title', '')}: {str(e)}"
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)
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return False
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def progress(self, success: bool) -> None:
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"""Update import progress."""
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self.metadata["total"] += 1
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self.metadata["processed"] += 1
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if success:
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self.metadata["imported"] += 1
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else:
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self.metadata["failed"] += 1
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self.message = f"{self.metadata['imported']} imported, {self.metadata['skipped']} skipped, {self.metadata['failed']} failed"
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self.save(update_fields=["metadata", "message"])
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def process_csv_file(self, file_path: str, import_function) -> None:
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"""Process a CSV file using the specified import function."""
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logger.debug(f"Processing {file_path}")
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with open(file_path, "r") as csvfile:
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reader = csv.DictReader(csvfile)
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for row in reader:
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success = import_function(row)
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self.progress(success)
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@classmethod
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def validate_file(cls, filename: str) -> bool:
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"""Validate that the given file is a valid CSV export ZIP file.
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Args:
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filename: Path to the file to validate
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Returns:
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bool: True if the file is valid, False otherwise
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"""
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return os.path.exists(filename) and zipfile.is_zipfile(filename)
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def run(self) -> None:
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"""Run the CSV import."""
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# Ensure failed_items is initialized
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if "failed_items" not in self.metadata:
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self.metadata["failed_items"] = []
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filename = self.metadata["file"]
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logger.debug(f"Importing {filename}")
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# Validate the file before processing
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if not self.validate_file(filename):
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self.save()
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return
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with zipfile.ZipFile(filename, "r") as zipref:
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with tempfile.TemporaryDirectory() as tmpdirname:
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logger.debug(f"Extracting {filename} to {tmpdirname}")
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zipref.extractall(tmpdirname)
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# Look for mark, review, and note CSV files
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for category in [
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ItemCategory.Movie,
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ItemCategory.TV,
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ItemCategory.Music,
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ItemCategory.Book,
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ItemCategory.Game,
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ItemCategory.Podcast,
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ItemCategory.Performance,
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]:
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# Import marks
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mark_file = os.path.join(tmpdirname, f"{category}_mark.csv")
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if os.path.exists(mark_file):
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self.process_csv_file(mark_file, self.import_mark)
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# Import reviews
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review_file = os.path.join(tmpdirname, f"{category}_review.csv")
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if os.path.exists(review_file):
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self.process_csv_file(review_file, self.import_review)
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# Import notes
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note_file = os.path.join(tmpdirname, f"{category}_note.csv")
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if os.path.exists(note_file):
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self.process_csv_file(note_file, self.import_note)
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self.message = _("Import complete")
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if self.metadata.get("failed_items", []):
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self.message += f": {self.metadata['failed']} items failed ({len(self.metadata['failed_items'])} unique items)"
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self.save()
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