623 lines
23 KiB
Python
623 lines
23 KiB
Python
import sys
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import os
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import sqlite3
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import pdfplumber
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import numpy as np
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import zipfile
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import io
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import traceback
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from sentence_transformers import SentenceTransformer, util
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from rapidfuzz import process, fuzz
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# Wichtige Importe für UI und Signale
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from PyQt6.QtCore import qInstallMessageHandler, QtMsgType, Qt, QThread, pyqtSignal, QUrl
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from PyQt6.QtWidgets import (QApplication, QMainWindow, QWidget, QVBoxLayout,
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QHBoxLayout, QLineEdit, QPushButton, QLabel,
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QFileDialog, QTextBrowser, QProgressBar, QMessageBox,
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QListWidget, QListWidgetItem, QSplitter, QFrame, QSplashScreen)
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from PyQt6.QtGui import QDesktopServices, QPixmap
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# --- 0. LOGGING & SYSTEM-SETUP ---
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if os.name == 'nt':
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base_dir = os.getenv('LOCALAPPDATA')
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else:
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base_dir = os.path.join(os.path.expanduser("~"), ".local", "share")
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log_dir = os.path.join(base_dir, "UFF_Search")
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if not os.path.exists(log_dir):
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os.makedirs(log_dir)
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log_file_path = os.path.join(log_dir, "uff.log")
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# Logger-Klasse
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class Logger(object):
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def __init__(self):
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self.log = open(log_file_path, "w", encoding="utf-8")
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def write(self, message):
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self.log.write(message)
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self.log.flush()
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def flush(self):
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self.log.flush()
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# stdout und stderr umleiten
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sys.stdout = Logger()
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sys.stderr = sys.stdout
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print(f"--- START LOGGING ---")
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print(f"Logfile liegt hier: {log_file_path}")
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# --- QT MESSAGE HANDLER (Der Filter für C++ Errors) ---
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def qt_message_handler(mode, context, message):
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"""
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Fängt interne Qt-Nachrichten ab und filtert Font-Fehler heraus.
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"""
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msg_lower = message.lower()
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# FILTER-LISTE: Erweitert basierend auf deinen Logs
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ignore_keywords = [
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"qt.text.font",
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"qt.qpa.fonts",
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"opentype support missing",
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"directwrite",
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"unable to create font",
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"fontbbox",
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"script 66",
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"script 9",
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"script 10",
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"script 20",
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"script 32"
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]
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# Wenn eines der Keywords vorkommt -> Nachricht ignorieren (return)
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if any(keyword in msg_lower for keyword in ignore_keywords):
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return
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# Formatierung für das Logfile
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mode_str = "INFO"
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if mode == QtMsgType.QtWarningMsg: mode_str = "WARNING"
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elif mode == QtMsgType.QtCriticalMsg: mode_str = "CRITICAL"
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elif mode == QtMsgType.QtFatalMsg: mode_str = "FATAL"
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# Nur relevante Nachrichten ins Log schreiben
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try:
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sys.stdout.write(f"[Qt {mode_str}] {message}\n")
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except:
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pass
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# Handler installieren (Muss VOR der App-Erstellung passieren)
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qInstallMessageHandler(qt_message_handler)
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# Zusätzlich Environment Variable setzen
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os.environ["QT_LOGGING_RULES"] = "qt.text.font.db=false;qt.qpa.fonts=false"
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# --- 1. DATENBANK MANAGER ---
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class DatabaseHandler:
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def __init__(self):
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if os.name == 'nt':
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base_dir = os.getenv('LOCALAPPDATA')
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else:
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base_dir = os.path.join(os.path.expanduser("~"), ".local", "share")
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self.app_data_dir = os.path.join(base_dir, "UFF_Search")
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if not os.path.exists(self.app_data_dir):
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os.makedirs(self.app_data_dir)
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self.db_name = os.path.join(self.app_data_dir, "uff_index.db")
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print(f"Datenbank Pfad: {self.db_name}")
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self.model = None
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self.init_db()
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def init_db(self):
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conn = sqlite3.connect(self.db_name)
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cursor = conn.cursor()
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cursor.execute("""
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CREATE VIRTUAL TABLE IF NOT EXISTS documents
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USING fts5(filename, path, content);
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""")
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cursor.execute("""
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CREATE TABLE IF NOT EXISTS folders (
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path TEXT PRIMARY KEY,
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alias TEXT
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);
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""")
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cursor.execute("""
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CREATE TABLE IF NOT EXISTS embeddings (
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doc_id INTEGER PRIMARY KEY,
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vec BLOB
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);
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""")
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conn.commit()
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conn.close()
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def add_folder(self, path):
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conn = sqlite3.connect(self.db_name)
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try:
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conn.execute("INSERT OR IGNORE INTO folders (path, alias) VALUES (?, ?)", (path, os.path.basename(path)))
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conn.commit()
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return True
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except:
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return False
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finally:
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conn.close()
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def remove_folder(self, path):
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conn = sqlite3.connect(self.db_name)
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cursor = conn.cursor()
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cursor.execute("SELECT rowid FROM documents WHERE path LIKE ?", (f"{path}%",))
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ids_to_delete = [row[0] for row in cursor.fetchall()]
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if ids_to_delete:
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cursor.execute("DELETE FROM documents WHERE path LIKE ?", (f"{path}%",))
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cursor.execute(f"DELETE FROM embeddings WHERE doc_id IN ({','.join('?'*len(ids_to_delete))})", ids_to_delete)
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cursor.execute("DELETE FROM folders WHERE path = ?", (path,))
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conn.commit()
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conn.close()
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def get_folders(self):
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conn = sqlite3.connect(self.db_name)
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rows = conn.execute("SELECT path FROM folders").fetchall()
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conn.close()
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return [r[0] for r in rows]
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def search(self, query):
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if not query.strip() or not self.model: return []
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# PHASE 1: SEMANTIK
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query_embedding = self.model.encode(query, convert_to_tensor=False)
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conn = sqlite3.connect(self.db_name)
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cursor = conn.cursor()
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cursor.execute("SELECT doc_id, vec FROM embeddings")
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all_embeddings_data = cursor.fetchall()
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doc_ids = [item[0] for item in all_embeddings_data]
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if not doc_ids:
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conn.close()
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return []
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all_embeddings = np.array([np.frombuffer(item[1], dtype=np.float32) for item in all_embeddings_data])
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cos_scores = util.cos_sim(query_embedding, all_embeddings)[0].numpy()
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cos_scores = np.clip(cos_scores, 0, 1)
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semantic_map = {doc_id: float(score) for doc_id, score in zip(doc_ids, cos_scores)}
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# PHASE 2: LEXIKALISCH
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words = query.replace('"', '').split()
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if not words: words = [query]
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sql_query_parts = [f'"{w}"*' for w in words]
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sql_query_string = " OR ".join(sql_query_parts)
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try:
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fts_rows = cursor.execute("""
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SELECT rowid, filename, content
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FROM documents
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WHERE documents MATCH ?
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LIMIT 100
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""", (sql_query_string,)).fetchall()
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except:
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fts_rows = []
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lexical_map = {}
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for doc_id, filename, content in fts_rows:
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ratio_name = fuzz.partial_ratio(query.lower(), filename.lower())
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ratio_content = fuzz.partial_token_set_ratio(query.lower(), content[:5000].lower())
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best_ratio = max(ratio_name, ratio_content)
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lexical_map[doc_id] = best_ratio / 100.0
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# PHASE 3: HYBRID
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final_scores = {}
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ALPHA = 0.65
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BETA = 0.35
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for doc_id, sem_score in semantic_map.items():
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if sem_score < 0.15 and doc_id not in lexical_map:
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continue
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lex_score = lexical_map.get(doc_id, 0.0)
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hybrid_score = (sem_score * ALPHA) + (lex_score * BETA)
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if sem_score > 0.4 and lex_score > 0.6:
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hybrid_score += 0.1
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final_scores[doc_id] = hybrid_score
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# PHASE 4: SORT
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sorted_ids = sorted(final_scores.keys(), key=lambda x: final_scores[x], reverse=True)
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results = []
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for doc_id in sorted_ids[:50]:
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row = cursor.execute(
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"SELECT filename, path, snippet(documents, 2, '<b>', '</b>', '...', 15) FROM documents WHERE rowid = ?",
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(doc_id,)
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).fetchone()
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if row:
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results.append(row)
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conn.close()
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return results
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# --- 2. MODEL LOADER ---
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class ModelLoaderThread(QThread):
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model_loaded = pyqtSignal(object)
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def run(self):
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print("Lade das semantische Modell (all-MiniLM-L6-v2)...")
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try:
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model = SentenceTransformer('all-MiniLM-L6-v2')
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print("Modell geladen.")
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self.model_loaded.emit(model)
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except Exception as e:
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print(f"Fehler beim Laden des Modells: {e}")
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self.model_loaded.emit(None)
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# --- 3. INDEXER ---
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class IndexerThread(QThread):
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progress_signal = pyqtSignal(str)
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finished_signal = pyqtSignal(int, int, bool)
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def __init__(self, folder_path, db_name, model):
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super().__init__()
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self.folder_path = folder_path
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self.db_name = db_name
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self.model = model
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self.is_running = True
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def stop(self):
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self.is_running = False
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def _extract_text_from_stream(self, file_stream, filename):
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ext = os.path.splitext(filename)[1].lower()
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text = ""
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try:
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if ext == ".pdf":
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try:
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with pdfplumber.open(file_stream) as pdf:
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for page in pdf.pages:
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try:
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if page_text := page.extract_text():
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text += page_text + "\n"
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except Exception as e:
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print(f"Warnung: Konnte eine Seite in '{filename}' nicht lesen. Fehler: {e}")
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continue
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except Exception as e:
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print(f"Warnung: PDF '{filename}' defekt. Fehler: {e}")
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return None
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elif ext in [".txt", ".md", ".py", ".json", ".csv", ".html", ".log", ".ini", ".xml"]:
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if hasattr(file_stream, 'read'):
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content_bytes = file_stream.read()
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if isinstance(content_bytes, str):
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with open(file_stream, 'r', encoding='utf-8', errors='ignore') as f:
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text = f.read()
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else:
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text = content_bytes.decode('utf-8', errors='ignore')
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else:
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with open(file_stream, "r", encoding="utf-8", errors="ignore") as f:
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text = f.read()
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except Exception as e:
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return None
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return text
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def run(self):
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conn = sqlite3.connect(self.db_name)
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cursor = conn.cursor()
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cursor.execute("SELECT rowid FROM documents WHERE path LIKE ?", (f"{self.folder_path}%",))
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ids_to_delete = [row[0] for row in cursor.fetchall()]
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if ids_to_delete:
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cursor.execute("DELETE FROM documents WHERE path LIKE ?", (f"{self.folder_path}%",))
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cursor.execute(f"DELETE FROM embeddings WHERE doc_id IN ({','.join('?'*len(ids_to_delete))})", ids_to_delete)
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conn.commit()
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indexed = 0
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skipped = 0
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was_cancelled = False
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for root, dirs, files in os.walk(self.folder_path):
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if not self.is_running:
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was_cancelled = True
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break
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for file in files:
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if not self.is_running:
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was_cancelled = True
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break
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file_path = os.path.join(root, file)
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self.progress_signal.emit(f"Prüfe: {file}...")
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if file.lower().endswith('.zip'):
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try:
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with zipfile.ZipFile(file_path, 'r') as z:
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for z_info in z.infolist():
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if z_info.is_dir(): continue
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virtual_path = f"{file_path} :: {z_info.filename}"
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with z.open(z_info) as z_file:
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file_in_memory = io.BytesIO(z_file.read())
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content = self._extract_text_from_stream(file_in_memory, z_info.filename)
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if content and len(content.strip()) > 20:
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self._save_to_db(cursor, z_info.filename, virtual_path, content)
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indexed += 1
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except Exception as e:
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print(f"Zip Error {file}: {e}")
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skipped += 1
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else:
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content = self._extract_text_from_stream(file_path, file)
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if content and len(content.strip()) > 20:
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self._save_to_db(cursor, file, file_path, content)
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indexed += 1
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else:
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skipped += 1
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if was_cancelled: break
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conn.commit()
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conn.close()
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self.finished_signal.emit(indexed, skipped, was_cancelled)
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def _save_to_db(self, cursor, filename, path, content):
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cursor.execute("INSERT INTO documents (filename, path, content) VALUES (?, ?, ?)", (filename, path, content))
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doc_id = cursor.lastrowid
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embedding = self.model.encode(content[:8000], convert_to_tensor=False)
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embedding_blob = embedding.tobytes()
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cursor.execute("INSERT INTO embeddings (doc_id, vec) VALUES (?, ?)", (doc_id, embedding_blob))
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# --- 4. UI ---
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class UffWindow(QMainWindow):
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def __init__(self, splash=None):
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super().__init__()
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self.splash = splash
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self.db = DatabaseHandler()
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self.indexer_thread = None
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self.initUI()
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self.load_saved_folders()
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def initUI(self):
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self.setWindowTitle("UFF Text Search")
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self.resize(1000, 700)
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central = QWidget()
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self.setCentralWidget(central)
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main_layout = QHBoxLayout(central)
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# LINKS
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left_panel = QFrame()
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left_panel.setFixedWidth(250)
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left_layout = QVBoxLayout(left_panel)
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left_layout.setContentsMargins(0, 0, 0, 0)
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lbl_folders = QLabel("📂 Meine Ordner")
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lbl_folders.setStyleSheet("font-weight: bold; font-size: 14px;")
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self.folder_list = QListWidget()
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self.folder_list.setSelectionMode(QListWidget.SelectionMode.SingleSelection)
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self.btn_add = QPushButton(" + Hinzufügen")
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self.btn_add.clicked.connect(self.add_new_folder)
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self.btn_remove = QPushButton(" - Entfernen")
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self.btn_remove.clicked.connect(self.delete_selected_folder)
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self.btn_rescan = QPushButton(" ↻ Neu scannen")
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self.btn_rescan.clicked.connect(self.rescan_selected_folder)
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self.btn_cancel = QPushButton("🛑 Abbrechen")
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self.btn_cancel.setStyleSheet("background-color: #ffcccc; color: #cc0000; font-weight: bold;")
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self.btn_cancel.clicked.connect(self.cancel_indexing)
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self.btn_cancel.hide()
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left_layout.addWidget(lbl_folders)
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left_layout.addWidget(self.folder_list)
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left_layout.addWidget(self.btn_add)
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left_layout.addWidget(self.btn_remove)
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left_layout.addStretch()
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left_layout.addWidget(self.btn_rescan)
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left_layout.addWidget(self.btn_cancel)
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# RECHTS
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right_panel = QWidget()
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right_layout = QVBoxLayout(right_panel)
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search_container = QHBoxLayout()
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self.input_search = QLineEdit()
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self.input_search.setPlaceholderText("Suche... (Hybrid: Inhalt + Keywords)")
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self.input_search.returnPressed.connect(self.perform_search)
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self.input_search.setStyleSheet("padding: 8px; font-size: 14px;")
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self.btn_go = QPushButton("Suchen")
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self.btn_go.setFixedWidth(100)
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self.btn_go.clicked.connect(self.perform_search)
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search_container.addWidget(self.input_search)
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search_container.addWidget(self.btn_go)
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self.lbl_status = QLabel("Initialisiere...")
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self.lbl_status.setStyleSheet("color: #666;")
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self.progress_bar = QProgressBar()
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self.progress_bar.hide()
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# STANDARD BROWSER MIT RICHTIGEN EINSTELLUNGEN
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self.result_browser = QTextBrowser()
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# WICHTIG: Interne Links deaktivieren, damit wir sie abfangen können
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self.result_browser.setOpenExternalLinks(False)
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# Wenn wir darauf klicken, wird unser Slot aufgerufen
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self.result_browser.anchorClicked.connect(self.link_clicked)
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self.result_browser.setStyleSheet("background-color: white; border: 1px solid #ccc;")
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right_layout.addLayout(search_container)
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right_layout.addWidget(self.lbl_status)
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right_layout.addWidget(self.progress_bar)
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right_layout.addWidget(self.result_browser)
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splitter = QSplitter(Qt.Orientation.Horizontal)
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splitter.addWidget(left_panel)
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splitter.addWidget(right_panel)
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splitter.setSizes([250, 750])
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main_layout.addWidget(splitter)
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self.set_main_ui_enabled(False)
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def set_main_ui_enabled(self, enabled):
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self.input_search.setEnabled(enabled)
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self.btn_go.setEnabled(enabled)
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self.folder_list.setEnabled(enabled)
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self.btn_add.setEnabled(enabled)
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self.btn_remove.setEnabled(enabled)
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self.btn_rescan.setEnabled(enabled)
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def start_model_loading(self):
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if self.splash:
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self.splash.showMessage("Lade semantisches Modell...", Qt.AlignmentFlag.AlignBottom | Qt.AlignmentFlag.AlignHCenter, Qt.GlobalColor.white)
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self.model_loader = ModelLoaderThread()
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self.model_loader.model_loaded.connect(self.on_model_loaded)
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self.model_loader.start()
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|
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def on_model_loaded(self, model):
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if self.splash:
|
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self.splash.showMessage("Modell geladen. Starte Benutzeroberfläche...", Qt.AlignmentFlag.AlignBottom | Qt.AlignmentFlag.AlignHCenter, Qt.GlobalColor.white)
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|
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if model is None:
|
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self.lbl_status.setText("Fehler: Modell konnte nicht geladen werden.")
|
|
QMessageBox.critical(self, "Kritischer Fehler", "Das semantische Modell konnte nicht geladen werden.")
|
|
self.close()
|
|
else:
|
|
self.db.model = model
|
|
self.lbl_status.setText("Bereit. Hybrid-Modell geladen.")
|
|
self.set_main_ui_enabled(True)
|
|
|
|
if self.splash:
|
|
self.splash.finish(self)
|
|
|
|
def load_saved_folders(self):
|
|
self.folder_list.clear()
|
|
folders = self.db.get_folders()
|
|
for f in folders:
|
|
item = QListWidgetItem(f)
|
|
item.setToolTip(f)
|
|
self.folder_list.addItem(item)
|
|
|
|
def add_new_folder(self):
|
|
folder = QFileDialog.getExistingDirectory(self, "Ordner wählen")
|
|
if folder:
|
|
if self.db.add_folder(folder):
|
|
self.load_saved_folders()
|
|
self.start_indexing(folder)
|
|
else:
|
|
QMessageBox.warning(self, "Info", "Ordner ist bereits vorhanden.")
|
|
|
|
def delete_selected_folder(self):
|
|
item = self.folder_list.currentItem()
|
|
if not item: return
|
|
path = item.text()
|
|
if QMessageBox.question(self, "Löschen", f"Ordner entfernen?\n{path}",
|
|
QMessageBox.StandardButton.Yes | QMessageBox.StandardButton.No) == QMessageBox.StandardButton.Yes:
|
|
self.db.remove_folder(path)
|
|
self.load_saved_folders()
|
|
self.result_browser.clear()
|
|
self.lbl_status.setText("Ordner entfernt.")
|
|
|
|
def rescan_selected_folder(self):
|
|
item = self.folder_list.currentItem()
|
|
if not item:
|
|
QMessageBox.information(self, "Info", "Bitte Ordner links auswählen.")
|
|
return
|
|
self.start_indexing(item.text())
|
|
|
|
def start_indexing(self, folder):
|
|
if not self.db.model:
|
|
QMessageBox.warning(self, "Bitte warten", "Das Suchmodell wird noch geladen.")
|
|
return
|
|
|
|
self.set_ui_busy(True)
|
|
self.lbl_status.setText(f"Starte... {os.path.basename(folder)}")
|
|
|
|
self.indexer_thread = IndexerThread(folder, db_name=self.db.db_name, model=self.db.model)
|
|
self.indexer_thread.progress_signal.connect(lambda msg: self.lbl_status.setText(msg))
|
|
self.indexer_thread.finished_signal.connect(self.indexing_finished)
|
|
self.indexer_thread.start()
|
|
|
|
def cancel_indexing(self):
|
|
if self.indexer_thread and self.indexer_thread.isRunning():
|
|
self.lbl_status.setText("Breche ab...")
|
|
self.indexer_thread.stop()
|
|
|
|
def indexing_finished(self, indexed, skipped, was_cancelled):
|
|
self.set_ui_busy(False)
|
|
if was_cancelled:
|
|
self.lbl_status.setText(f"Abgebrochen. ({indexed} indiziert).")
|
|
QMessageBox.information(self, "Abbruch", f"Vorgang abgebrochen.\nBis dahin indiziert: {indexed}")
|
|
else:
|
|
self.lbl_status.setText(f"Fertig. {indexed} neu, {skipped} übersprungen.")
|
|
QMessageBox.information(self, "Fertig", f"Scan abgeschlossen!\n{indexed} Dateien im Index.")
|
|
|
|
def set_ui_busy(self, busy):
|
|
self.input_search.setEnabled(not busy)
|
|
self.folder_list.setEnabled(not busy)
|
|
self.btn_add.setEnabled(not busy)
|
|
self.btn_remove.setEnabled(not busy)
|
|
self.btn_go.setEnabled(not busy)
|
|
self.btn_rescan.setVisible(not busy)
|
|
self.btn_cancel.setVisible(busy)
|
|
if busy:
|
|
self.progress_bar.setRange(0, 0)
|
|
self.progress_bar.show()
|
|
else:
|
|
self.progress_bar.hide()
|
|
|
|
def perform_search(self):
|
|
query = self.input_search.text()
|
|
if not query: return
|
|
|
|
self.lbl_status.setText("Suche läuft...")
|
|
QApplication.processEvents()
|
|
|
|
results = self.db.search(query)
|
|
self.lbl_status.setText(f"{len(results)} relevante Treffer.")
|
|
|
|
html = ""
|
|
if not results:
|
|
html = "<h3 style='color: gray; text-align: center; margin-top: 20px;'>Nichts gefunden.</h3>"
|
|
|
|
for filename, filepath, snippet in results:
|
|
if " :: " in filepath:
|
|
real_path = filepath.split(" :: ")[0]
|
|
display_path = filepath
|
|
else:
|
|
real_path = filepath
|
|
display_path = filepath
|
|
|
|
# Link für QTextBrowser
|
|
file_url = QUrl.fromLocalFile(real_path).toString()
|
|
|
|
html += f"""
|
|
<div style='margin-bottom: 10px; padding: 10px; background-color: #f9f9f9; border-left: 4px solid #2980b9;'>
|
|
<a href="{file_url}" style='font-size: 16px; font-weight: bold; color: #2980b9; text-decoration: none;'>
|
|
{filename}
|
|
</a>
|
|
<div style='color: #333; margin-top: 5px; font-family: sans-serif; font-size: 13px;'>{snippet}</div>
|
|
<div style='color: #999; font-size: 11px; margin-top: 4px;'>{display_path}</div>
|
|
</div>
|
|
"""
|
|
self.result_browser.setHtml(html)
|
|
|
|
# --- DIE FUNKTION ZUM ÖFFNEN DER LINKS ---
|
|
def link_clicked(self, url):
|
|
print(f"Versuche zu öffnen: {url.toString()}")
|
|
QDesktopServices.openUrl(url)
|
|
|
|
if __name__ == "__main__":
|
|
app = QApplication(sys.argv)
|
|
|
|
splash = None
|
|
try:
|
|
pixmap = QPixmap("assets/uff_banner.jpeg")
|
|
splash = QSplashScreen(pixmap)
|
|
splash.show()
|
|
splash.showMessage("Initialisiere Anwendung...", Qt.AlignmentFlag.AlignBottom | Qt.AlignmentFlag.AlignHCenter, Qt.GlobalColor.white)
|
|
except:
|
|
pass
|
|
|
|
app.processEvents()
|
|
|
|
window = UffWindow(splash)
|
|
window.show()
|
|
window.start_model_loading()
|
|
|
|
sys.exit(app.exec()) |