# utils/qgis_init.py
import os
import sys

# Lokasi instalasi QGIS di Linux (Ubuntu / Debian)
QGIS_PREFIX = "/usr"

# Path modul Python QGIS
sys.path.append("/usr/share/qgis/python")

# Environment variable agar QGIS dapat berjalan headless (tanpa GUI)
os.environ["QGIS_PREFIX_PATH"] = QGIS_PREFIX
os.environ["QT_QPA_PLATFORM"] = "offscreen"

from qgis.core import QgsApplication
from qgis.analysis import QgsNativeAlgorithms
import processing
from processing.core.Processing import Processing


def init_qgis():
    qgs = QgsApplication([], False)
    qgs.initQgis()

    # Register QGIS processing provider
    Processing.initialize()
    QgsApplication.processingRegistry().addProvider(QgsNativeAlgorithms())

    print("QGIS initialized successfully")
    return qgs