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nfoguard/nfoguard-web/core/web_database.py
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Python

"""
NFOGuard Web Database - Lightweight Read-Only Database Access
Optimized for web interface queries with minimal dependencies
"""
import psycopg2
import psycopg2.extras
from typing import Dict, List, Optional, Any, Tuple
import logging
logger = logging.getLogger(__name__)
class WebDatabase:
"""Lightweight database access for web interface"""
def __init__(self, db_type: str, host: str, port: int, database: str, user: str, password: str):
self.db_type = db_type.lower()
self.host = host
self.port = port
self.database = database
self.user = user
self.password = password
self.connection = None
# Connect to database
self._connect()
def _connect(self):
"""Connect to PostgreSQL database"""
if self.db_type != "postgresql":
raise ValueError("Web interface only supports PostgreSQL")
try:
self.connection = psycopg2.connect(
host=self.host,
port=self.port,
database=self.database,
user=self.user,
password=self.password,
cursor_factory=psycopg2.extras.RealDictCursor
)
# Set to autocommit for read operations
self.connection.autocommit = True
logger.info(f"Connected to PostgreSQL: {self.host}:{self.port}/{self.database}")
except Exception as e:
logger.error(f"Failed to connect to database: {e}")
raise
def execute_query(self, query: str, params: Optional[Tuple] = None) -> List[Dict[str, Any]]:
"""Execute a SELECT query and return results"""
try:
with self.connection.cursor() as cursor:
cursor.execute(query, params)
return [dict(row) for row in cursor.fetchall()]
except Exception as e:
logger.error(f"Query failed: {query[:100]}... Error: {e}")
raise
def execute_single(self, query: str, params: Optional[Tuple] = None) -> Optional[Dict[str, Any]]:
"""Execute a query and return single result"""
results = self.execute_query(query, params)
return results[0] if results else None
def execute_scalar(self, query: str, params: Optional[Tuple] = None) -> Any:
"""Execute a query and return single value"""
result = self.execute_single(query, params)
return list(result.values())[0] if result else None
# Dashboard Statistics
def get_dashboard_stats(self) -> Dict[str, Any]:
"""Get dashboard statistics"""
stats = {}
# Movie statistics
movie_query = """
SELECT
COUNT(*) as total_movies,
COUNT(CASE WHEN dateadded IS NOT NULL AND source != 'unknown' THEN 1 END) as movies_with_dates,
COUNT(CASE WHEN dateadded IS NULL OR source = 'unknown' THEN 1 END) as movies_without_dates
FROM movies
"""
movie_stats = self.execute_single(movie_query)
stats.update(movie_stats)
# TV statistics
tv_query = """
SELECT
COUNT(DISTINCT imdb_id) as total_series,
COUNT(*) as total_episodes,
COUNT(CASE WHEN dateadded IS NOT NULL AND source != 'unknown' THEN 1 END) as episodes_with_dates,
COUNT(CASE WHEN dateadded IS NULL OR source = 'unknown' THEN 1 END) as episodes_without_dates
FROM episodes
"""
tv_stats = self.execute_single(tv_query)
stats.update(tv_stats)
return stats
# Movie queries
def get_movies(self, skip: int = 0, limit: int = 50, has_date: Optional[bool] = None) -> List[Dict[str, Any]]:
"""Get movies with pagination"""
where_clause = ""
params = []
if has_date is not None:
if has_date:
where_clause = "WHERE dateadded IS NOT NULL AND source != 'unknown'"
else:
where_clause = "WHERE dateadded IS NULL OR source = 'unknown'"
query = f"""
SELECT imdb_id, title, year, dateadded, released, source, last_updated
FROM movies
{where_clause}
ORDER BY title, year
LIMIT %s OFFSET %s
"""
params.extend([limit, skip])
return self.execute_query(query, params)
def get_movie_count(self, has_date: Optional[bool] = None) -> int:
"""Get total movie count"""
where_clause = ""
params = []
if has_date is not None:
if has_date:
where_clause = "WHERE dateadded IS NOT NULL AND source != 'unknown'"
else:
where_clause = "WHERE dateadded IS NULL OR source = 'unknown'"
query = f"SELECT COUNT(*) FROM movies {where_clause}"
return self.execute_scalar(query, params)
# TV Series queries
def get_series(self, skip: int = 0, limit: int = 50, date_filter: str = "none") -> List[Dict[str, Any]]:
"""Get TV series with episode statistics"""
where_clause = ""
if date_filter == "complete":
where_clause = """
WHERE NOT EXISTS (
SELECT 1 FROM episodes e2
WHERE e2.imdb_id = e.imdb_id
AND (e2.dateadded IS NULL OR e2.source = 'unknown')
)
"""
elif date_filter == "incomplete":
where_clause = """
WHERE EXISTS (
SELECT 1 FROM episodes e2
WHERE e2.imdb_id = e.imdb_id
AND (e2.dateadded IS NULL OR e2.source = 'unknown')
)
"""
query = f"""
SELECT
e.imdb_id,
e.series_title,
COUNT(*) as total_episodes,
COUNT(CASE WHEN e.dateadded IS NOT NULL AND e.source != 'unknown' THEN 1 END) as episodes_with_dates,
COUNT(CASE WHEN e.dateadded IS NULL OR e.source = 'unknown' THEN 1 END) as episodes_without_dates,
MAX(e.last_updated) as last_updated
FROM episodes e
{where_clause}
GROUP BY e.imdb_id, e.series_title
ORDER BY e.series_title
LIMIT %s OFFSET %s
"""
return self.execute_query(query, [limit, skip])
def get_series_count(self, date_filter: str = "none") -> int:
"""Get total series count"""
where_clause = ""
if date_filter == "complete":
where_clause = """
WHERE NOT EXISTS (
SELECT 1 FROM episodes e2
WHERE e2.imdb_id = e.imdb_id
AND (e2.dateadded IS NULL OR e2.source = 'unknown')
)
"""
elif date_filter == "incomplete":
where_clause = """
WHERE EXISTS (
SELECT 1 FROM episodes e2
WHERE e2.imdb_id = e.imdb_id
AND (e2.dateadded IS NULL OR e2.source = 'unknown')
)
"""
query = f"""
SELECT COUNT(DISTINCT imdb_id)
FROM episodes e
{where_clause}
"""
return self.execute_scalar(query)
def get_episodes_for_series(self, imdb_id: str) -> List[Dict[str, Any]]:
"""Get all episodes for a series"""
query = """
SELECT imdb_id, series_title, season, episode, episode_title,
dateadded, source, last_updated
FROM episodes
WHERE imdb_id = %s
ORDER BY season, episode
"""
return self.execute_query(query, [imdb_id])
# Source statistics
def get_series_sources(self) -> List[Dict[str, Any]]:
"""Get source statistics for series"""
query = """
SELECT
source,
COUNT(DISTINCT imdb_id) as series_count,
COUNT(*) as episode_count
FROM episodes
WHERE source != 'unknown'
GROUP BY source
ORDER BY series_count DESC, episode_count DESC
"""
return self.execute_query(query)
# Episode-specific methods for web interface
def get_episode_date(self, imdb_id: str, season: int, episode: int) -> Optional[Dict]:
"""Get episode data including dates"""
query = """
SELECT imdb_id, season, episode, aired, dateadded, source, has_video_file, last_updated
FROM episodes
WHERE imdb_id = %s AND season = %s AND episode = %s
"""
return self.execute_single(query, (imdb_id, season, episode))
def upsert_episode_date(self, imdb_id: str, season: int, episode: int,
aired: Optional[str], dateadded: Optional[str],
source: str, has_video_file: bool = False) -> None:
"""Update or insert episode date information"""
# First check if episode exists
existing = self.get_episode_date(imdb_id, season, episode)
# Temporarily disable autocommit for the transaction
original_autocommit = self.connection.autocommit
self.connection.autocommit = False
try:
with self.connection.cursor() as cursor:
if existing:
# Update existing episode
query = """
UPDATE episodes
SET aired = %s, dateadded = %s, source = %s, has_video_file = %s, last_updated = NOW()
WHERE imdb_id = %s AND season = %s AND episode = %s
"""
cursor.execute(query, (aired, dateadded, source, has_video_file, imdb_id, season, episode))
else:
# Insert new episode
query = """
INSERT INTO episodes (imdb_id, season, episode, aired, dateadded, source, has_video_file, last_updated)
VALUES (%s, %s, %s, %s, %s, %s, %s, NOW())
"""
cursor.execute(query, (imdb_id, season, episode, aired, dateadded, source, has_video_file))
self.connection.commit()
except Exception as e:
self.connection.rollback()
logger.error(f"Failed to upsert episode date: {e}")
raise
finally:
# Restore original autocommit setting
self.connection.autocommit = original_autocommit
def get_movie_dates(self, imdb_id: str) -> Optional[Dict]:
"""Get movie data including dates"""
query = """
SELECT imdb_id, path, released, dateadded, source, has_video_file, last_updated
FROM movies
WHERE imdb_id = %s
"""
return self.execute_single(query, (imdb_id,))
def upsert_movie_dates(self, imdb_id: str, released: Optional[str],
dateadded: Optional[str], source: str,
has_video_file: bool = False, path: str = "") -> None:
"""Update or insert movie date information"""
# First check if movie exists
existing = self.get_movie_dates(imdb_id)
# Temporarily disable autocommit for the transaction
original_autocommit = self.connection.autocommit
self.connection.autocommit = False
try:
with self.connection.cursor() as cursor:
if existing:
# Update existing movie
query = """
UPDATE movies
SET released = %s, dateadded = %s, source = %s, has_video_file = %s, last_updated = NOW()
WHERE imdb_id = %s
"""
cursor.execute(query, (released, dateadded, source, has_video_file, imdb_id))
else:
# Insert new movie
query = """
INSERT INTO movies (imdb_id, path, released, dateadded, source, has_video_file, last_updated)
VALUES (%s, %s, %s, %s, %s, %s, NOW())
"""
cursor.execute(query, (imdb_id, path, released, dateadded, source, has_video_file))
self.connection.commit()
except Exception as e:
self.connection.rollback()
logger.error(f"Failed to upsert movie dates: {e}")
raise
finally:
# Restore original autocommit setting
self.connection.autocommit = original_autocommit
def get_connection(self):
"""Get database connection for advanced operations"""
return self.connection
def _get_first_value(self, row):
"""Extract first value from a database row (compatibility method)"""
if row is None:
return None
if isinstance(row, dict):
return list(row.values())[0] if row else None
return row[0] if row else None
def get_stats(self) -> Dict[str, Any]:
"""Get basic database statistics (compatibility method)"""
return self.get_dashboard_stats()
def add_processing_history(self, imdb_id: str, media_type: str, event_type: str, details: Dict) -> None:
"""Add processing history entry (simplified for web interface)"""
# Temporarily disable autocommit for the transaction
original_autocommit = self.connection.autocommit
self.connection.autocommit = False
try:
with self.connection.cursor() as cursor:
# Check if processing_history table exists
cursor.execute("""
SELECT EXISTS (
SELECT FROM information_schema.tables
WHERE table_name = 'processing_history'
)
""")
table_exists = cursor.fetchone()[0]
if table_exists:
query = """
INSERT INTO processing_history (imdb_id, media_type, event_type, details, processed_at)
VALUES (%s, %s, %s, %s, NOW())
"""
import json
cursor.execute(query, (imdb_id, media_type, event_type, json.dumps(details)))
self.connection.commit()
else:
# Table doesn't exist, skip logging
logger.debug("Processing history table not found, skipping log entry")
except Exception as e:
self.connection.rollback()
logger.error(f"Failed to add processing history: {e}")
# Don't raise, this is non-critical
finally:
# Restore original autocommit setting
self.connection.autocommit = original_autocommit
def close(self):
"""Close database connection"""
if self.connection:
self.connection.close()
logger.info("Database connection closed")
def __enter__(self):
return self
def __exit__(self, exc_type, exc_val, exc_tb):
self.close()