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857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 | """
Appwrite Database Service - Phase 2
Provides persistent storage for news articles with fast querying capability.
"""
# Suppress Appwrite SDK v4.1.0 deprecation warnings
# NOTE: list_documents() is deprecated but new API (tablesDB.list_rows) requires SDK v6+
# We're using v4.1.0 for stability, suppress warnings until we upgrade
import warnings
import warnings
warnings.filterwarnings('ignore', category=DeprecationWarning, module='appwrite')
warnings.filterwarnings('ignore', message='Call to deprecated function') # Catch-all for Appwrite logs
try:
from appwrite.client import Client
from appwrite.services.databases import Databases
from appwrite.services.storage import Storage
from appwrite.query import Query
from appwrite.exception import AppwriteException
APPWRITE_AVAILABLE = True
except ImportError:
APPWRITE_AVAILABLE = False
print("Appwrite SDK not available - database features disabled")
from typing import List, Optional, Dict
from datetime import datetime, timedelta
import hashlib
import asyncio # For parallel writes
from app.models import Article
from app.config import settings
import logging
# Phase 23: Upgraded to the custom ANSI-aligned logger.
# Every Appwrite save/error line will now appear under the [💾 DB] column
# in the terminal, making it trivial to spot database issues at a glance.
from app.utils.custom_logger import get_logger, TAG_DB, TAG_ERROR
logger = get_logger(__name__)
class TablesDBWrapper:
"""
Future-Proofing Wrapper (Migration Phase)
Wraps legacy 'documents' API into new 'tables' nomenclature
"""
def __init__(self, db_service):
self.db = db_service
async def create_row(self, *args, **kwargs):
return await asyncio.to_thread(self.db.create_document, *args, **kwargs)
async def get_row(self, *args, **kwargs):
return await asyncio.to_thread(self.db.get_document, *args, **kwargs)
async def list_rows(self, *args, **kwargs):
return await asyncio.to_thread(self.db.list_documents, *args, **kwargs)
async def delete_row(self, *args, **kwargs):
# Mapping delete_document -> delete_row if needed
return await asyncio.to_thread(self.db.delete_document, *args, **kwargs)
async def update_row(self, *args, **kwargs):
return await asyncio.to_thread(self.db.update_document, *args, **kwargs)
class AppwriteDatabase:
"""Appwrite Database service for persistent article storage (L2 cache)"""
def __init__(self):
self.initialized = False
self.client = None
self.databases = None
self.storage = None
# ── Phase 22: Global write concurrency guard ──────────────────────────
# This semaphore is a class-level attribute — shared across EVERY call
# to save_articles(), including concurrent calls from different categories.
#
# Why 10? Appwrite's free/starter tier handles ~60 writes/min comfortably.
# 10 concurrent writes means we process 150 articles in 15 rounds of 10,
# finishing in a few seconds while staying well inside Appwrite's limits.
#
# Without this: 150 simultaneous POST requests → Appwrite HTTP 429
# → articles silently dropped (data loss during news events).
# With this: 10 at a time → zero 429s → zero silent data loss.
self._write_semaphore = asyncio.Semaphore(10)
if APPWRITE_AVAILABLE and settings.APPWRITE_PROJECT_ID:
self._initialize()
def _initialize(self):
"""Initialize Appwrite client and database connection"""
if not APPWRITE_AVAILABLE:
return
try:
# Check if required config is present
if not settings.APPWRITE_PROJECT_ID or not settings.APPWRITE_API_KEY:
print("Appwrite credentials not configured - database features disabled")
self.initialized = False
return
# Initialize Appwrite client
self.client = Client()
self.client.set_endpoint(settings.APPWRITE_ENDPOINT)
self.client.set_project(settings.APPWRITE_PROJECT_ID)
self.client.set_key(settings.APPWRITE_API_KEY)
# Initialize databases service
self.databases = Databases(self.client)
# Initialize storage service
self.storage = Storage(self.client)
self.initialized = True
print("")
self.initialized = True
print("")
print("-" * 80)
print("[Appwrite] Database initialized successfully!")
print(f"Database ID: {settings.APPWRITE_DATABASE_ID}")
print(f"Collection ID: {settings.APPWRITE_COLLECTION_ID}")
print("-" * 80)
print("-" * 80)
print("")
print("")
self.tablesDB = TablesDBWrapper(self.databases)
except Exception as e:
print("")
except Exception as e:
print("")
print("!" * 80)
print("[Appwrite] Initialization FAILED!")
print(f"[ERROR] Error: {e}")
print("[INFO] Please check your Appwrite credentials in .env file")
print("!" * 80)
print("")
print("")
self.initialized = False
def get_collection_id(self, category: str) -> str:
"""
Phase 4: Strict Routing Algorithm (Vertical Architecture)
"""
# Normalize
if not category or not category.strip():
logger.warning("[ROUTING] Empty category, defaulting to News Articles")
return settings.APPWRITE_COLLECTION_ID
cat = category.lower().strip()
# 1. AI Vertical
if cat == 'ai':
return settings.APPWRITE_AI_COLLECTION_ID
# 2. Cloud Vertical (All providers)
if cat.startswith('cloud-'):
return settings.APPWRITE_CLOUD_COLLECTION_ID
# 3. Research Vertical (New)
if cat == 'research' or cat.startswith('research-'):
return settings.APPWRITE_RESEARCH_COLLECTION_ID
# 4. Data Vertical (Security, Governance, etc.)
if cat.startswith('data-') or cat.startswith('business-') or cat == 'customer-data-platform':
return settings.APPWRITE_DATA_COLLECTION_ID
# 4. Magazines
if cat == 'magazines':
return settings.APPWRITE_MAGAZINE_COLLECTION_ID
# 5. Medium
if cat == 'medium-article':
return settings.APPWRITE_MEDIUM_COLLECTION_ID
# Default / Fallback
logger.warning(f"[ROUTING] Unmatched category '{cat}', defaulting to News Articles")
return settings.APPWRITE_COLLECTION_ID
def _generate_url_hash(self, url: str) -> str:
"""
Generate a unique hash for an article URL
**INTEGRATION UPDATE**: Matches Schema Size 64
Uses SHA-256 hash of the RAW URL.
Returns:
64-character hex hash
"""
import hashlib
# Generate SHA-256 hash from RAW URL (no canonicalization for ID)
hash_bytes = hashlib.sha256(url.encode('utf-8')).hexdigest()
# Return FULL 64 characters (matches DB Schema)
return hash_bytes
async def get_articles(self, category: str, limit: int = 20, offset: int = 0) -> List[Dict]:
"""
Get articles by category with pagination and projection (FAANG-Level)
"""
if not self.initialized:
return []
try:
# Determine collection based on category
target_collection_id = self.get_collection_id(category)
# FAANG Optimization: Projection - fetch only what UI needs!
select_fields = [
'$id',
'title',
'url',
'image_url',
'published_at',
'source',
'category',
'url_hash',
'authors', # Research specific
'pdf_url', # Research specific
'summary' # Research specific (mapped to description)
]
# Query with projection
queries = [
Query.order_desc('published_at'), # Uses index!
Query.limit(limit),
Query.offset(offset)
]
# Apply category filter ONLY if it's not the root 'research' category
# (Because 'research' collection only contains research papers, so no filter = All Research)
if category != 'research':
queries.insert(0, Query.equal('category', category))
response = await self.tablesDB.list_rows(
database_id=settings.APPWRITE_DATABASE_ID,
collection_id=target_collection_id,
queries=queries
)
print(f"[DEBUG] Appwrite Raw Response: Total={response.get('total')}, Docs={len(response.get('documents', []))}")
# Convert Appwrite documents to Article dictionaries
articles = []
for doc in response['documents']:
try:
# Smart Mapping for Research Papers
description = doc.get('description', '')
if not description and doc.get('summary'):
description = doc.get('summary')
url = doc.get('url', '')
if not url and doc.get('pdf_url'):
url = doc.get('pdf_url')
article = {
'$id': doc.get('$id'), # Ensure $id is passed!
'title': doc.get('title'),
'description': description,
'url': url,
'image_url': doc.get('image_url', ''),
'publishedAt': doc.get('published_at'),
'published_at': doc.get('published_at'), # Standard schema field
'source': doc.get('source', ''),
'category': doc.get('category'),
'likes': doc.get('likes', 0),
'dislikes': doc.get('dislike', 0),
'views': doc.get('views', 0),
'author': doc.get('authors') # Map authors to author (singular for compat)
# 'authors': doc.get('authors') # Keep plural if needed
}
articles.append(article)
except Exception as e:
print(f"Error parsing Appwrite document: {e}")
continue
if articles:
print(f"[SUCCESS] Retrieved {len(articles)} articles for '{category}' (Collection: {target_collection_id})")
return articles
except AppwriteException as e:
print(f"Appwrite query error for category '{category}': {e}")
return []
async def get_articles_with_queries(self, queries: List, category: str = None) -> List[Dict]:
"""
Get articles with custom query filters (for cursor pagination)
Args:
queries: List of Appwrite Query objects
category: Optional category for explicit routing (Recommended)
"""
if not self.initialized:
return []
try:
# Phase 4 Routing: Determine Collection ID
target_collection_id = settings.APPWRITE_COLLECTION_ID
if category:
# 1. Explicit Routing (Robust)
target_collection_id = self.get_collection_id(category)
logger.info(f"🔍 [ROUTING] Category='{category}' -> Collection='{target_collection_id}'")
else:
# 2. Fallback: Extract category from queries (Brittle)
# Parse query list for 'category' to route to correct table
for q in queries:
q_str = str(q)
if 'category' in q_str:
import re
# Regex for JSON-like string: {"attribute":"category","values":["ai"]}
# Logic: Look for "category" attribute, then find the value inside ["..."]
match = re.search(r'category.*?"values":\["([^"]+)"\]', q_str)
if not match:
# Try simpler regex (just in case string format differs)
match = re.search(r'category.*?"([^"]+)"', q_str)
if match:
category_val = match.group(1)
target_collection_id = self.get_collection_id(category_val)
logger.info(f"🔍 [ROUTING-FALLBACK] Extracted='{category_val}' -> Collection='{target_collection_id}'")
break
logger.info(f"🚀 [QUERY] Executing query on Collection: {target_collection_id}")
response = await self.tablesDB.list_rows(
database_id=settings.APPWRITE_DATABASE_ID,
collection_id=target_collection_id,
queries=queries
)
# Convert to article dictionaries
articles = []
for doc in response['documents']:
try:
article = {
'$id': doc.get('$id'),
'title': doc.get('title'),
'description': doc.get('description') or doc.get('summary', ''),
'url': doc.get('url'),
'image_url': doc.get('image_url', ''),
'publishedAt': doc.get('published_at'),
'published_at': doc.get('published_at'),
'source': doc.get('source', ''),
'category': doc.get('category'),
'likes': doc.get('likes', 0),
'dislikes': doc.get('dislike', 0),
'views': doc.get('views', 0)
}
articles.append(article)
except Exception as e:
continue
return articles
except Exception as e:
print(f"Query error: {e}")
return []
async def save_articles(self, articles: List) -> int:
"""
Save articles to Appwrite database with TRUE parallel writes
"""
logger = logging.getLogger(__name__)
if not self.initialized:
return (0, 0, 0, [])
if not articles:
return (0, 0, 0, [])
# Initialize URL Filter
try:
from app.services.deduplication import get_url_filter
url_filter = get_url_filter()
except ImportError:
logger.warning("[Appwrite] Deduplication service not found, skipping local bloom filter check")
url_filter = None
async def save_single_article(article: dict) -> tuple:
try:
# Handle both dict and object types
url = str(article.get('url', '')) if isinstance(article, dict) else str(article.url)
if not url:
return ('error', None)
# 1. BLOOM FILTER CHECK (Local De-duplication)
if url_filter and not url_filter.check_and_add(url):
# Only return duplicate if it was actually caught by the filter
# This saves an API call to Appwrite
return ('duplicate', None)
# Generate unique document ID (Must be <= 36 chars)
# Use raw SHA-256 for url_hash attribute (64 chars)
url_hash_full = self._generate_url_hash(url)
# Truncate for Document ID (32 chars)
doc_id = url_hash_full[:32]
# Helper to get field from dict or object
def get_field(obj, field, default=''):
if isinstance(obj, dict):
return obj.get(field, default)
return getattr(obj, field, default)
# Route to correct collection
category_val = str(get_field(article, 'category', ''))
target_collection_id = self.get_collection_id(category_val)
# Prepare document data - STRICT SCHEMA MAPPING (New Schema Enforcement)
# Notes:
# 1. 'image_url' is the standard (replacing legacy 'image')
# 2. 'published_at' is the standard (replacing legacy 'publishedAt' camelCase)
# Helper to get published date safely
pub_date = get_field(article, 'published_at') or get_field(article, 'publishedAt')
if isinstance(pub_date, datetime):
pub_date_str = pub_date.isoformat()
else:
pub_date_str = str(pub_date or datetime.now().isoformat())
document_data = {
'title': str(get_field(article, 'title', ''))[:500],
'description': str(get_field(article, 'description', ''))[:2000],
'url': url[:2048],
'image_url': str(get_field(article, 'image_url') or get_field(article, 'image', ''))[:2048] or None,
'published_at': pub_date_str,
'source': str(get_field(article, 'source', ''))[:200],
'category': str(get_field(article, 'category', ''))[:100],
'fetched_at': datetime.now().isoformat(),
'url_hash': url_hash_full, # 64 chars
'slug': str(get_field(article, 'slug', ''))[:200] if get_field(article, 'slug', '') else None,
'quality_score': int(get_field(article, 'quality_score', 50)),
# ENGAGEMENT METRICS
'likes': 0,
'dislike': 0,
'views': 0,
'audio_url': get_field(article, 'audio_url', None) # Initialize audio_url
}
# Cloud Collection Specifics (Legacy Schema requirements)
if target_collection_id == settings.APPWRITE_CLOUD_COLLECTION_ID:
document_data['provider'] = document_data['source']
document_data['is_official'] = False # Default to False
# FIX: Cloud collection uses legacy 'image' attribute, not 'image_url'
# CRITICAL: Cloud collection validates URLs strictly - must be a valid URL or None
image_value = document_data.pop('image_url', None)
# Validate that image_value is a proper URL
if image_value and isinstance(image_value, str) and image_value.strip():
# Check if it's a valid URL format (starts with http/https)
if image_value.startswith(('http://', 'https://')):
document_data['image'] = image_value
else:
# Invalid URL format - set to None
document_data['image'] = None
else:
# Empty or None - set to None
document_data['image'] = None
# NOTE: Cloud collection DOES accept 'published_at' (snake_case)
# Only the 'image' field uses legacy naming
# Try to create document
await self.tablesDB.create_row(
database_id=settings.APPWRITE_DATABASE_ID,
collection_id=target_collection_id,
document_id=doc_id, # Truncated ID
data=document_data
)
return ('success', document_data)
except AppwriteException as e:
# Document already exists (duplicate detected by Appwrite)
if 'document_already_exists' in str(e).lower() or 'unique' in str(e).lower():
return ('duplicate', None)
else:
logger.error("%s Appwrite write failed: %s | URL: %s...",
TAG_ERROR, str(e), url[:60])
return ('error', str(e))
except Exception as e:
logger.error("%s Unexpected error during save: %s | URL: %s...",
TAG_ERROR, str(e), url[:60])
return ('error', str(e))
# PHASE 22: Concurrency-limited parallel writes
#
# The _safe_save wrapper acquires self._write_semaphore before calling
# save_single_article. Because the semaphore is a CLASS-LEVEL attribute
# (set in __init__), it is shared across all concurrent save_articles()
# calls — even if 5 categories are saving at the same time, the total
# number of live Appwrite write requests is always capped at 10.
#
# Think of it as a turnstile: no matter how many people push at once,
# only 10 can walk through at the same time.
async def _safe_save(article):
async with self._write_semaphore:
return await save_single_article(article)
save_tasks = [_safe_save(article) for article in articles]
# asyncio.gather fires all tasks but the semaphore inside each one
# ensures at most 10 actually hit Appwrite at the same time.
results = await asyncio.gather(*save_tasks, return_exceptions=True)
# Count results
saved_count = 0
saved_documents = []
duplicate_count = 0
error_count = 0
for result in results:
if isinstance(result, Exception):
error_count += 1
continue
status, data = result
if status == 'success':
saved_count += 1
saved_documents.append(data)
elif status == 'duplicate':
duplicate_count += 1
else: # error
error_count += 1
if saved_count > 0 or duplicate_count > 0 or error_count > 0:
logger.info(
"%s Saved: %d | Duplicates: %d | Errors: %d",
TAG_DB, saved_count, duplicate_count, error_count
)
return saved_count, duplicate_count, error_count, saved_documents
async def delete_old_articles(self, days: int = 30) -> int:
"""
Delete articles older than specified days
Args:
days: Delete articles older than this many days
Returns:
Number of articles deleted
"""
if not self.initialized:
return 0
try:
cutoff_date = (datetime.now() - timedelta(days=days)).isoformat()
# Query old articles
response = await self.tablesDB.list_rows(
database_id=settings.APPWRITE_DATABASE_ID,
collection_id=settings.APPWRITE_COLLECTION_ID,
queries=[
Query.less_than('fetched_at', cutoff_date),
Query.limit(500) # Increased from 100 to 500 for better throughput
]
)
deleted_count = 0
for doc in response['documents']:
try:
await self.tablesDB.delete_row(
database_id=settings.APPWRITE_DATABASE_ID,
collection_id=settings.APPWRITE_COLLECTION_ID,
document_id=doc['$id']
)
deleted_count += 1
except Exception as e:
print(f"Error deleting document {doc['$id']}: {e}")
if deleted_count > 0:
print(f"[CLEANUP] Deleted {deleted_count} articles older than {days} days")
else:
print(f"[CLEANUP] No old articles to delete")
return deleted_count
except Exception as e:
print(f"Error deleting old articles: {e}")
return 0
# ------------------------------------------------------------------
# SUBSCRIBER MANAGEMENT (Migration Phase 2)
# ------------------------------------------------------------------
async def create_subscriber(self, email: str, name: str, preferences: Dict[str, bool], token: str) -> bool:
"""
Create a new subscriber in Appwrite (Dual-Write)
Uses Boolean Flags schema: sub_morning, sub_afternoon, etc.
"""
if not self.initialized:
return False
try:
# Prepare document data
data = {
"email": email,
"name": name,
"token": token,
"isActive": True,
# Map dict preferences to individual boolean columns
"sub_morning": preferences.get("Morning", False),
"sub_afternoon": preferences.get("Afternoon", False),
"sub_evening": preferences.get("Evening", False),
"sub_weekly": preferences.get("Weekly", False),
"sub_monthly": preferences.get("Monthly", False)
}
# Use email hash or sanitized email as ID to prevent duplicates
# doc_id = hashlib.md5(email.encode()).hexdigest()
# Appwrite requires unique ID. 'email' attribute is unique, but let's use 'unique()' or hash.
# Using MD5 of email ensures idempotent writes (same email = same ID)
doc_id = hashlib.md5(email.lower().encode()).hexdigest()
await self.tablesDB.create_row(
database_id=settings.APPWRITE_DATABASE_ID,
collection_id=settings.APPWRITE_SUBSCRIBERS_COLLECTION_ID,
document_id=doc_id,
data=data
)
logger.info(f"✅ [Appwrite] Subscriber created: {email}")
return True
except AppwriteException as e:
if 'document_already_exists' in str(e).lower() or 'unique' in str(e).lower():
# If exists, we should try to update it? Or just return True?
# For dual-write safety, let's update it to ensure sync
logger.info(f"ℹ️ [Appwrite] Subscriber exists, updating: {email}")
return await self.update_subscriber(email, preferences)
logger.error(f"❌ [Appwrite] Error creating subscriber: {e}")
return False
except Exception as e:
logger.error(f"❌ [Appwrite] Unexpected error creating subscriber: {e}")
return False
async def get_subscriber(self, email: str) -> Optional[Dict]:
"""Get subscriber by email"""
if not self.initialized:
return None
try:
documents = await self.tablesDB.list_rows(
database_id=settings.APPWRITE_DATABASE_ID,
collection_id=settings.APPWRITE_SUBSCRIBERS_COLLECTION_ID,
queries=[Query.equal("email", email)]
)
if documents['total'] > 0:
return documents['documents'][0]
return None
except Exception as e:
logger.error(f"❌ [Appwrite] Error getting subscriber: {e}")
return None
async def update_subscriber(self, email: str, preferences: Dict[str, bool]) -> bool:
"""Update subscriber preferences"""
if not self.initialized:
return False
try:
# 1. Find document ID by email
subscriber = await self.get_subscriber(email)
if not subscriber:
return False
doc_id = subscriber['$id']
# 2. Prepare update data
data = {}
if "Morning" in preferences: data["sub_morning"] = preferences["Morning"]
if "Afternoon" in preferences: data["sub_afternoon"] = preferences["Afternoon"]
if "Evening" in preferences: data["sub_evening"] = preferences["Evening"]
if "Weekly" in preferences: data["sub_weekly"] = preferences["Weekly"]
if "Monthly" in preferences: data["sub_monthly"] = preferences["Monthly"]
# Note: tablesDB wrapper now has update_row
await self.tablesDB.update_row(
database_id=settings.APPWRITE_DATABASE_ID,
collection_id=settings.APPWRITE_SUBSCRIBERS_COLLECTION_ID,
document_id=doc_id,
data=data
)
logger.info(f"✅ [Appwrite] Subscriber updated: {email}")
return True
except Exception as e:
logger.error(f"❌ [Appwrite] Error updating subscriber: {e}")
return False
async def get_subscriber_by_token(self, token: str) -> Optional[Dict]:
"""Get subscriber by unsubscribe token"""
try:
documents = await self.tablesDB.list_rows(
database_id=settings.APPWRITE_DATABASE_ID,
collection_id=settings.APPWRITE_SUBSCRIBERS_COLLECTION_ID,
queries=[Query.equal("token", token)]
)
if documents['total'] > 0:
return documents['documents'][0]
return None
except Exception as e:
logger.error(f"❌ [Appwrite] Error finding subscriber by token: {e}")
return None
async def update_article_audio(self, collection_id: str, document_id: str, audio_url: str, text_summary: Optional[str] = None) -> bool:
"""Update article with audio URL and optional text summary"""
if not self.initialized:
return False
try:
data = {'audio_url': audio_url}
if text_summary:
data['text_summary'] = text_summary
await self.tablesDB.update_row(
database_id=settings.APPWRITE_DATABASE_ID,
collection_id=collection_id,
document_id=document_id,
data=data
)
return True
except Exception as e:
logger.error(f"❌ [Appwrite] Error updating article audio: {e}")
return False
async def update_subscription_status(self, email: str, preference: str, is_active: bool) -> bool:
"""
Update specific subscription preference (Granular Unsubscribe)
"""
if not self.initialized:
return False
try:
subscriber = await self.get_subscriber(email)
if not subscriber:
return False
# Map preference name to column name
field_map = {
"Morning": "sub_morning",
"Afternoon": "sub_afternoon",
"Evening": "sub_evening",
"Weekly": "sub_weekly",
"Monthly": "sub_monthly"
}
field = field_map.get(preference)
if not field:
logger.error(f"Invalid preference: {preference}")
return False
data = {field: is_active}
await self.tablesDB.update_row(
database_id=settings.APPWRITE_DATABASE_ID,
collection_id=settings.APPWRITE_SUBSCRIBERS_COLLECTION_ID,
document_id=subscriber['$id'],
data=data
)
logger.info(f"✅ [Appwrite] Updated {preference} for {email} to {is_active}")
return True
except Exception as e:
logger.error(f"❌ [Appwrite] Error updating subscription status: {e}")
return False
async def update_subscriber_status(self, email: str, subscribed: bool) -> bool:
"""
Update global subscription status (Global Unsubscribe)
"""
if not self.initialized:
return False
try:
subscriber = await self.get_subscriber(email)
if not subscriber:
return False
data = {"isActive": subscribed}
await self.tablesDB.update_row(
database_id=settings.APPWRITE_DATABASE_ID,
collection_id=settings.APPWRITE_SUBSCRIBERS_COLLECTION_ID,
document_id=subscriber['$id'],
data=data
)
logger.info(f"✅ [Appwrite] Global status for {email} set to {subscribed}")
return True
except Exception as e:
logger.error(f"❌ [Appwrite] Error updating global subscriber status: {e}")
return False
async def update_last_sent(self, email: str) -> bool:
"""
Update lastSentAt timestamp for a subscriber
"""
if not self.initialized:
return False
try:
subscriber = await self.get_subscriber(email)
if not subscriber:
return False
from datetime import datetime
import pytz
# Store in UTC ISO format
utc_now = datetime.now(pytz.UTC).isoformat()
await self.tablesDB.update_row(
database_id=settings.APPWRITE_DATABASE_ID,
collection_id=settings.APPWRITE_SUBSCRIBERS_COLLECTION_ID,
document_id=subscriber['$id'],
data={'lastSentAt': utc_now}
)
# logger.debug(f"✅ [Appwrite] Updated lastSentAt for {email}")
return True
except Exception as e:
logger.error(f"❌ [Appwrite] Error updating lastSentAt: {e}")
return False
async def get_subscribers_by_preference(self, preference: str) -> List[Dict]:
"""
Get all subscribers filtered by newsletter preference
Directly from Appwrite (Source of Truth)
"""
if not self.initialized:
return []
try:
# Map preference name to column name
field_map = {
"Morning": "sub_morning",
"Afternoon": "sub_afternoon",
"Evening": "sub_evening",
"Weekly": "sub_weekly",
"Monthly": "sub_monthly"
}
field = field_map.get(preference)
# Default fallback for safety (or if preference is invalid)
if not field:
logger.warning(f"⚠️ [Appwrite] Unknown preference '{preference}', defaulting to Weekly")
field = "sub_weekly"
logger.info(f"🔍 [Appwrite] Fetching subscribers for {preference} ({field})...")
# Query Logic:
# 1. Must be globally active (isActive=true)
# 2. Must be subscribed to specific preference (sub_X=true)
documents = await self.tablesDB.list_rows(
database_id=settings.APPWRITE_DATABASE_ID,
collection_id=settings.APPWRITE_SUBSCRIBERS_COLLECTION_ID,
queries=[
Query.equal("isActive", True),
Query.equal(field, True),
Query.limit(1000) # Safety limit
]
)
subs = documents['documents']
logger.info(f"✅ [Appwrite] Found {len(subs)} subscribers for {preference}")
return subs
except Exception as e:
logger.error(f"❌ [Appwrite] Error getting subscribers by preference: {e}")
return []
async def update_article_audio(self, collection_id: str, document_id: str, audio_url: str, text_summary: Optional[str] = None) -> bool:
"""Update article with audio URL and optional text summary"""
if not self.initialized:
return False
try:
data = {'audio_url': audio_url}
if text_summary:
data['text_summary'] = text_summary
await self.tablesDB.update_row(
database_id=settings.APPWRITE_DATABASE_ID,
collection_id=collection_id,
document_id=document_id,
data=data
)
return True
except Exception as e:
logger.error(f"❌ [Appwrite] Error updating article audio: {e}")
return False
async def get_database_stats(self) -> Dict:
"""
Get database statistics
Returns:
Dictionary with database stats (total articles, by category, etc.)
"""
if not self.initialized:
return {"error": "Appwrite not initialized"}
try:
# Get total count
total_response = self.tablesDB.list_rows(
database_id=settings.APPWRITE_DATABASE_ID,
collection_id=settings.APPWRITE_COLLECTION_ID,
queries=[Query.limit(1)]
)
total_articles = total_response['total']
# Get counts by category
categories = [
"ai", "data-security", "data-governance", "data-privacy",
"data-engineering", "data-management", "business-intelligence",
"business-analytics", "customer-data-platform", "data-centers",
"cloud-computing", "magazines"
]
articles_by_category = {}
for category in categories:
response = self.tablesDB.list_rows(
database_id=settings.APPWRITE_DATABASE_ID,
collection_id=settings.APPWRITE_COLLECTION_ID,
queries=[
Query.equal('category', category), # SDK v4.x uses string value
Query.limit(1)
]
)
articles_by_category[category] = response['total']
return {
"total_articles": total_articles,
"articles_by_category": articles_by_category,
"database_id": settings.APPWRITE_DATABASE_ID,
"collection_id": settings.APPWRITE_COLLECTION_ID,
"initialized": self.initialized
}
except Exception as e:
print(f"Error getting database stats: {e}")
return {"error": str(e)}
# Singleton instance
_appwrite_db = None
def get_appwrite_db() -> AppwriteDatabase:
"""Get or create Appwrite database singleton instance"""
global _appwrite_db
if _appwrite_db is None:
_appwrite_db = AppwriteDatabase()
return _appwrite_db
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