From bd7cbe91ed52fe97fe956cb57e303bc5bbbbd7e5 Mon Sep 17 00:00:00 2001
From: Sven Czarnian <devel@svcz.de>
Date: Thu, 2 Sep 2021 19:43:34 +0200
Subject: [PATCH] add a configuration that parses all relevant airport data

---
 aman/config/Airport.py | 98 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 98 insertions(+)
 create mode 100644 aman/config/Airport.py

diff --git a/aman/config/Airport.py b/aman/config/Airport.py
new file mode 100644
index 0000000..21a9984
--- /dev/null
+++ b/aman/config/Airport.py
@@ -0,0 +1,98 @@
+#!/usr/bin/env python
+
+import configparser
+import glob
+import os
+import sys
+
+from formats.SctEseFormat import SctEseFormat
+
+class Airport:
+    def parseAirport(self, airport):
+        if None == airport.get('runways'):
+            return False
+        self.runways = airport['runways'].split(':')
+        return True
+
+    def findGngData(data, path):
+        if None == data.get('gngwildcard'):
+            return None, None
+
+        # find the newest ESE file
+        files = glob.glob(os.path.join(path, data['gngwildcard'] + '.ese'))
+        latestEse = max(files, key=os.path.getctime)
+
+        # search for the corresponding SCT file
+        latestSct = os.path.splitext(latestEse)[0] + '.sct'
+
+        # check if the files exist
+        if False == os.path.isfile(latestEse) or False == os.path.isfile(latestSct):
+            return None, None
+
+        return latestSct, latestEse
+
+    def parsePlanning(self, planning):
+        for key in planning:
+            # check if the runways match
+            rwy = key.upper()
+            if rwy not in self.runways:
+                sys.stderr.write('Unable to find ' + rwy + ' in defined runways')
+                return False
+
+            # check if arrivals are defined
+            arrivals = planning[key].split(':')
+            if 0 == len(arrivals):
+                sys.stderr.write('No arrival routes for ' + rwy)
+                return False
+
+            # assign the arrival routes to the runways
+            self.arrivalRoutes[rwy] = arrivals
+
+        return True
+
+    def __init__(self, filepath : str, icao : str):
+        self.runways = []
+        self.arrivalRoutes = {}
+
+        config = configparser.ConfigParser()
+        config.read(filepath)
+
+        dataConfig = None
+        airportConfig = None
+        planningConfig = None
+
+        # search the required sections
+        for key in config:
+            if 'DATA' == key:
+                dataConfig = config['DATA']
+            elif 'AIRPORT' == key:
+                airportConfig = config['AIRPORT']
+            elif 'PLANNING' == key:
+                planningConfig = config['PLANNING']
+
+        # find the GNG-file data
+        sctFile, eseFile = Airport.findGngData(dataConfig, os.path.dirname(filepath))
+        if None == sctFile or None == eseFile:
+            sys.stderr.write('No GNG-files found')
+            sys.exit(-1)
+
+        # parse the airport information
+        if None == airportConfig or False == self.parseAirport(airportConfig):
+            sys.stderr.write('No or no valid airport configuration found')
+            sys.exit(-1)
+
+        # parse the planning information
+        if None == planningConfig or False == self.parsePlanning(planningConfig):
+            sys.stderr.write('No or no valid planning configuration found')
+            sys.exit(-1)
+
+        # get all required arrival routes and avoid duplicates
+        requiredArrivalRoutes = []
+        for rwy in self.arrivalRoutes:
+            for arrival in self.arrivalRoutes[rwy]:
+                if arrival not in requiredArrivalRoutes:
+                    requiredArrivalRoutes.append(arrival)
+
+        # parse the GNG data
+        print('Used GNG-Data: ' + eseFile)
+        self.gngData = SctEseFormat(sctFile, eseFile, icao, requiredArrivalRoutes)