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from typing import Any
import xml.etree.ElementTree as ET
from tinydb import Query
from app.Item import Item
from app.PluginInterface import PluginInterface
from app.utils import get_param
from app.DatabaseManager import database_manager
class Plugin(PluginInterface):
def __init__(self, id: str, params: dict[str, Any]) -> None:
super().__init__(id, params)
self.feed_id: str = get_param("feed_id", params)
self.feed_title: str = get_param("feed_title", params)
self.feed_link: str | None = params.get("feed_link", None)
self.feed_description: str = get_param("feed_description", params)
print(f"[FeedSinkPlugin#{self.id}] initialized")
print(f"[FeedSinkPlugin#{self.id}] feed will be served at path /{self.feed_id}")
def build_xml(self, items: list[Item]):
rss = ET.Element("rss", {"version": "2.0"})
channel = ET.SubElement(rss, "channel")
title = ET.SubElement(channel, "title")
title.text = self.feed_title
if self.feed_link is not None:
link = ET.SubElement(channel, "link")
link.text = self.feed_link
description = ET.SubElement(channel, "description")
description.text = self.feed_description
for item in items:
item_elem = ET.SubElement(channel, "item")
item_title = ET.SubElement(item_elem, "title")
item_title.text = item.title
item_link = ET.SubElement(item_elem, "link")
item_link.text = item.link
item_description = ET.SubElement(item_elem, "description")
item_description.text = item.description
return ET.tostring(rss, "unicode")
def process(self, source_id: str | None, items: list[Item]) -> list[Item]:
print(f"[FeedSinkPlugin#{self.id}] process called, n={len(items)}")
if source_id is None:
raise Exception(f"FeedSinkPlugin#{self.id} can not be scheduled")
if database_manager.db is None:
raise Exception("Database is not initialized")
ret = self.build_xml(items)
Q = Query()
database_manager.feeds.upsert({"feed_id": self.feed_id, "feed_xml": ret}, Q.feed_id == self.feed_id) # type: ignore
print(f"[FeedSinkPlugin#{self.id}] processed")
return []
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