import argparse
import configparser
import ezdxf
import os
import sys
import json
import re
from ezdxf.addons import iterdxf
import re
from pathlib import Path
from shapely.geometry import Point


"""
Dieses Programm:
- liest die dxf Datei und holt sich von den Layern der dxf Datei die Positionen  
    + der Motoren, Sensoren und Aktoren
    + der Unterverteiler
    + der Polylinien der Kabelpritschen
- erzeugt daraus eine .json Datei im Work Ordner

"""
def write_results(jsnResults, outdir, filename):
    """ write results to a json file
    """
    print("writing results to a json file ...")
    outfile = os.path.join(outdir, filename)
    with open(outfile, 'w', encoding='utf-8') as fh:
        fh.write(jsnResults)
    print("done")

def merge_two_dicts(x, y):
    z = x.copy()
    z.update(y)
    return z


def get_type_of_name_cfg(name):
    prefix = name[:2]

    if config_BMK.has_option("Routing-Include", prefix):
        return "Sensor"
    elif config_BMK.has_option("Routing-Ignore", prefix):
        return "Schaltschrankelement"
    else:
        return "unknown"

def get_attributes_of_insert(dinsert, dpos):
    """
    Diese Funktion schaut nach den aktuell definierten Attributen in den Blöcken
    
    Bei den Sensoren in den alten Layouts gibt zwei immer übereinanderliegende Blöcke mit den Attributen: 
    - A, B (z.B. MA0062), C, ARTINR (z.B. 790902001), BESCHR (E-Teile für SEW Motor ASE1..), MENGE, POSITION, ...
    - IO (z.B. MA0062), ID , VERW (z.B. CV-M0062_0,75), BEZEICHNUNG (Motor MA0062), KENNZEICHNUNG (z.B.=A01+UH01-KF1DQ04), ...
    Die Adresse für das Routing kommt aus "KENNZEICHNUNG", während die Sivas Nummer aus "ARTINR" geholt werden muss
    Einmal wird B zur ID, beim anderen IO

    Erdungssymbole erhalten die ID aus dem Eintrag unter "NAME"

    Hier in Zukunft weniger Abfragen: IO und B und Reale_Position wird überflüssig wenn jeder Sensor nur noch ein Block mit allen Attributen!

    """
    id = ""
    ld = dinsert
    typ = 'unknown'

    # die neueren Bläcke heissen nicht IO, sondern haben einen Namen
    if "NAME" in dinsert:
        typ = get_type_of_name_cfg(dinsert["NAME"])
        id = dinsert["NAME"]

    if "IO" in dinsert:
        attr_text = dinsert["IO"]
        typ = get_type_of_name_cfg(attr_text)
        id = dinsert["IO"]
        pos = dpos["IO"]

        if "REALE_POSITION" in dinsert and dinsert["REALE_POSITION"] == 'x':
            pos = dpos["REALE_POSITION"]

            # Hoehe und Breite von "x" addieren, um Mittelpunkt zu finden
            breite_marker = config.getfloat("GetPos-Geom-Sensor", "Breite")
            hoehe_marker = config.getfloat("GetPos-Geom-Sensor", "Hoehe")
            midx = pos[0] + breite_marker * 0.5
            midy = pos[1] + hoehe_marker * 0.5
            ld["pos"] = (round(midx, 1), round(midy, 1))
        else:
            ld["pos"] = (pos[0], pos[1])

    if "B" in dinsert:
        attr_text = dinsert["B"]
        typ = get_type_of_name_cfg(attr_text)
        id = attr_text
        #Position aufzeichnen und bei Bedarf später mit REAL_POS überschreiben
        pos = dpos["B"]
        ld["pos"] = (pos[0], pos[1])
  
    return (ld, id, typ)
    

class CompareBuffer:
    """ein Puffer um alle als Doppelt zugewiesenen blöcke zwischenzulagern. 
    Anhand von ähnlicher Position und gleicher ID wird dann entschieden, 
    ob die Daten beider dicts zusammen gehören"""
    def __init__(self):
        self._wartepuffer = dict()

    def add_block(self, id, buffer):
        """adds one block under the buffer list under this id"""
        if id not in self._wartepuffer:
            self._wartepuffer[id] = list()
        self._wartepuffer[id].append(buffer)

    def get_blocks(self, id):
        if id in self._wartepuffer:
            return self._wartepuffer[id]
        else:
            return []
    
    def get_block_ids(self)->list: 
        return list(self._wartepuffer.keys())


    def set_block(self, id, buffer):
        if id in self._wartepuffer:
            del self._wartepuffer[id]
        self._wartepuffer[id] = buffer

    def dict_compare(self, d1, d2):
        str1 =  json.dumps(d1) 
        str2 =  json.dumps(d2) 
        return str1 == str2
    
    def remove_block(self, id, toRemove):
        """removes this block from the list under the given id"""
        buffers = self.get_blocks(id)
        l = list()
        for b in buffers:
            if self.dict_compare(b, toRemove):
                pass
            else:
                l.append(b)
        self.set_block(id, l)
    
    def positions_are_close(self, dict1:dict, dict2:dict, border:float):
        pos1 = None
        pos2 = None
        if "pos" in dict1:
            pos1 = dict1["pos"]
        if "pos" in dict2:
            pos2 = dict2["pos"]
        if not (pos1 and pos2):
            return False
        p1 = Point(pos1[0], pos1[1]) 
        p2 = Point(pos2[0], pos2[1] )
        dist = p1.distance(p2)
        if dist < border:
            return True
        return False
           
    def get_all_sps_blocks(self, id):
        """gives back all blocks with SPS inside to the given id"""
        buffers = self.get_blocks(id)
        l = list()
        for b in buffers:
            if "SPS" in b:
                l.append(b)
        return l

    def get_non_sps_blocks(self, id):
        """gives back all blocks without SPS inside to the given id"""
        buffers = self.get_blocks(id)
        l = list()
        for b in buffers:
            if "SPS" not in b:
                l.append(b)
        return l

def extract_input_positions(insert_iterable) -> tuple:
    allSensors = dict()
    allCables = dict()
    allSchaltschrank = dict()
    allunknowns = list()

    WP = CompareBuffer()
    all_inserts, all_positions = attribs_to_dicts(insert_iterable)

    for insert, pos in zip(all_inserts, all_positions):
        ld, id, typ = get_attributes_of_insert(insert, pos)

        if typ == "Sensor":
            # wenn NAME enthalten ist, dann ist das ein eindeutiger Bezeichner
            if "NAME" in ld:
                allSensors[id] = ld
            else:
                # alle anderen Sachen werden dann aus mehreren Rahmen zusammen gesammelt
                WP.add_block(id, ld)

        elif typ == "Kabel":
            allCables[id] = ld
        elif typ == "Schaltschrankelement":
            allSchaltschrank[id] = ld
        else:
            allunknowns.append(ld) 

    # spezialbehandlung der Sensoren, da diese in IO und A,B,C Blöcke geteilt sind
    # Die Funktion sucht die übereinanderliegenen Elemente und baut ein Dict daraus 
    allocate_blocks_together(allSensors, WP)

    # die noch übrigen Blöcke melden
    missing_attribs, doubleIds = get_errors_double_and_attributes(WP) 

    return allSensors, doubleIds, missing_attribs

def get_errors_double_and_attributes(WP):
    missing_attribs = dict()
    doubleIds = dict()
    for id in WP.get_block_ids():
        blocks = WP.get_blocks(id)
        # einzelne Blöcke deren Zuordnung nicht gelungen ist, fehlen Angaben in den Attributen, z.B. SPS, B, u.ä.
        if len(blocks) == 1:
            given_keys = str(blocks[0].keys())
            missing_attribs[id] = f"Nur ein Block und/oder fehlende Attribute: {given_keys}"
            WP.remove_block(id, blocks[0])
        # alle anderen Angaben sind mindestens zwei oder mehr Blöcke mit derselben Id
        else:
            for block in blocks:
                if id not in doubleIds:
                    doubleIds[id] = []
                doubleIds[id].append(block['pos'])
    return missing_attribs, doubleIds

def allocate_blocks_together(allSensors:dict, WP:CompareBuffer):
    """geht alle gemerkten Sensoren durch die gleich heissen. 
    Falls ein SPS Präfix angegeben wird, wird es zur Id hinzugefügt und als neuer Name gemerkt """
    all_sensors_ids = WP.get_block_ids() 
    for id in all_sensors_ids:
        blks_sps = WP.get_all_sps_blocks(id) 
        blks_other = WP.get_non_sps_blocks(id)

        for block_with_sps in blks_sps:
            for block_without_sps in blks_other:
                # Vergleiche alle Blöcke mit SPS und denen ohne auf die gleiche Position
                if WP.positions_are_close(block_with_sps, block_without_sps, 1000):
                    newId = create_new_id(id, block_with_sps, block_without_sps) # hier das Präfix davor
                    allSensors[newId] = merge_two_dicts(block_without_sps, block_with_sps) #Kombiniert alle infos aus dxf und "pos"
                    WP.remove_block(id, block_with_sps)
                    WP.remove_block(id, block_without_sps)
    
def create_new_id(id, dict1, dict2):
    sps_praefix = None
    if "SPS" in dict1:
        sps_praefix = dict1["SPS"]
    if "SPS" in dict2:
        sps_praefix = dict2["SPS"]
    if not sps_praefix:
        raise Exception
    return f"{sps_praefix}:{id}"

def attribs_to_dicts(insert_iterable):
    all_inserts = list()
    all_positions = list()
    for insert in insert_iterable:
        if insert.dxftype() != 'INSERT':
            continue
        itemdata = dict()
        positions = dict()
        typ = 'unknown'
        for attrib in insert.attribs:
            if len(insert.attribs) == 0:
                continue  # Überspringe Blöcke ohne Attribute
            attr_tag = attrib.dxf.tag
            attr_text = attrib.dxf.text
            pos = attrib.dxf.insert 
            itemdata[attr_tag] = attr_text
            positions[attr_tag] = (round(pos.x, 1), round(pos.y, 1), round(pos.z, 1))
        if len(itemdata) > 0:
            all_inserts.append(itemdata)
            all_positions.append(positions)
    return all_inserts, all_positions

def get_input_positions(msp) -> tuple:
    return extract_input_positions(msp.query('INSERT'))

def get_input_positions_iter(dxf_path) -> tuple:
    return extract_input_positions(iterdxf.modelspace(dxf_path))

def create_mappings(positions:dict) -> tuple:
    unterverteiler_pfad = ""
    dnamen = dict()
    # s 
    sensor2unterverteiler = dict()
    warnings = dict()
    for sensorname,v in positions.items():
        if "KENNZEICHNUNG" not in v:
            warnings[sensorname] = "keine KENNZEICHNUNG vorhanden"
            continue

        unterverteiler_pfad = v["KENNZEICHNUNG"]
        #print(unterverteiler_pfad)

        # Pfad zur Karte splitten. Dieser hat z.B. den Inhalt "=AH01+UH02-KF1FDI7" 
        matches = re.findall(r'[^\-+=]+', unterverteiler_pfad.lstrip('='))
        if matches:
            anlage = matches[0]
            verteiler = matches[1]
            karte = matches[2]
        else:
            warnings[sensorname] = f"Ungültiger Pfad in Kennzeichnung: {unterverteiler_pfad}"
            continue

        if  verteiler not in dnamen:
            dnamen[verteiler] = True

        sensor2unterverteiler[sensorname] = verteiler

    # jetzt zu jedem  Unterverteiler die zugehörigen Sensoren merken
    uv2sensor = dict()
    for sensorname,verteiler in sensor2unterverteiler.items():
        if verteiler not in uv2sensor:
            uv2sensor[verteiler] = list()
        uv2sensor[verteiler].append(sensorname)  

    return (uv2sensor, warnings)

def get_subdistributor_positions(msp, dist2sensors):
    """hole alle Positionen der Unterverteiler !!UV-Positionen bereits "Mitte-Mitte"!!
    """
    ret = dict()
    # Alle Texte auf Layer "xy"
    all_distributors = dist2sensors.keys()
    all_layers = config.items('GetPos-Layer_Distributors')
    for (layer,v) in all_layers:
        for distname in all_distributors:
            selectstr = f'MTEXT[layer=="{layer}"]'
            for text in msp.query(selectstr):
                #print(f"Text auf Layer 'Busverteiler-Kennzeichnung': {text.dxf.text}")
                match = re.search("-"+distname, text.dxf.text)
                if match:
                    ret[distname] = (round(text.dxf.insert[0],1), round(text.dxf.insert[1],1)) #nur x und y Koordinate in Json schreiben
    return ret

def get_subdistributor_positions_iter(dxf_path, dist2sensors):
    """Hole alle Positionen der Unterverteiler aus MTEXT-Objekten mithilfe von iterdxf."""
    ret = {}
    all_distributors = dist2sensors.keys()
    all_layers = config.items('GetPos-Layer_Distributors')

    for entity in iterdxf.modelspace(dxf_path):
        if entity.dxftype() != "MTEXT":
            continue
        entity_text = entity.dxf.text
        entity_layer = entity.dxf.layer
        insert_point = entity.dxf.insert

        for (layer_name, _) in all_layers:
            if entity_layer != layer_name:
                continue
            for distname in all_distributors:
                if f"-{distname}" in entity_text:
                    ret[distname] = (round(insert_point[0], 1), round(insert_point[1], 1))

    return ret

def get_tunnel_positions(msp):
    """hole alle Positionen aller Tunnel Ein und Ausgänge
    """
    allTunnels = dict()
    tunnel_length = dict()
    # Alle Text mit "Tunnel" als Inhalt auf Layer "xy"
    all_layers = config.items('GetPos-Layer_Tunnel')
    for (layer,v) in all_layers:
        selectstr = f'MTEXT[layer=="{layer}"]'
        for text in msp.query(selectstr):
            txt = text.dxf.text
            pattern = r"(TUNNEL\d+)-(\d+)"
            match = re.search(pattern, txt)
            if match:
                pos = (round(text.dxf.insert[0],1), round(text.dxf.insert[1],1)) #nur x und y Koordinate in Json schreiben
                tunnelname = match.group(1)
                laenge = match.group(2)
                tunnel_length[tunnelname] = laenge
                if not tunnelname in allTunnels:
                    allTunnels[tunnelname] = list()
                    allTunnels[tunnelname].append(pos)
                else:
                    allTunnels[tunnelname].append(pos)
    if len(allTunnels.keys()) > 0:
        allTunnels['length'] = tunnel_length
    return allTunnels

def get_tunnel_positions_iter(dxf_path):
    """Hole alle Positionen aller Tunnel Ein- und Ausgänge mithilfe von iterdxf."""
    allTunnels = dict()
    tunnel_length = dict()
    
    all_layers = config.items('GetPos-Layer_Tunnel')

    for entity in iterdxf.modelspace(dxf_path):
        if entity.dxftype() != "MTEXT":
            continue

        txt = entity.dxf.text
        layer = entity.dxf.layer
        insert = entity.dxf.insert

        for (layer_name, _) in all_layers:
            if layer != layer_name:
                continue

            pattern = r"(TUNNEL\d+)-(\d+)"
            match = re.search(pattern, txt)
            if match:
                tunnelname = match.group(1)
                laenge = match.group(2)
                pos = (round(insert[0], 1), round(insert[1], 1))

                if tunnelname not in allTunnels:
                    allTunnels[tunnelname] = []
                allTunnels[tunnelname].append(pos)
                tunnel_length[tunnelname] = laenge
    if len(tunnel_length.keys()) > 0:
        allTunnels['length'] = tunnel_length
    return allTunnels

# helper function
def print_line(e):
    print("LINE on layer: %s\n" % e.dxf.layer)
    print("points: %s\n" % repr(e.dxf))

def print_polyline(e):
    print("POLYLINE on layer: %s\n" % e.dxf.layer)
    #print("points: %s\n" % repr(e.dxf))
    #print("y point: %s\n" % e.dxf.y)
    for x, y, start_width, end_width, bulge in e.get_points():  # Gibt Tuple (x, y, start_width, end_width, bulge)
        print(f"  Punkt: ({x}, {y}),   Startbreite: ({start_width}, Endbreite: {end_width})")
    if e.is_closed:
        print("Diese Polyline ist geschlossen.")

def get_rack_positions(msp):
    """hole alle Positionen aller Kabelpritschen und nummeriere Racks"""
    ret = dict()
    rack_counter = 1 #Zaehler für Rack Nummerierung

    all_layers = list(config.items('GetPos-Layer_Racks'))
    
    for layer, _ in all_layers:
        # Suche nach LWPOLYLINE 
        lw_query = f'LWPOLYLINE[layer=="{layer}"]'
        for entity in msp.query(lw_query):
            rack_key = f"Rack_{rack_counter}"
            handle_lwpolyline(entity, rack_key, ret)
            rack_counter += 1

        # Suche nach klassischer POLYLINE
        pl_query = f'POLYLINE[layer=="{layer}"]'
        for entity in msp.query(pl_query):
            rack_key = f"Rack_{rack_counter}"
            handle_polyline(entity, rack_key, ret)
            rack_counter += 1

    return ret

def get_rack_positions_iter(dxf_path):
    """Hole alle Positionen aller Kabelpritschen (Racks) mithilfe von iterdxf."""
    ret = dict()
    rack_counter = 1  # Zähler für Rack-Nummerierung

    all_layers = config.items('GetPos-Layer_Racks')

    for entity in iterdxf.modelspace(dxf_path):
        layer = entity.dxf.layer

        if not any(layer == cfg_layer for cfg_layer, _ in all_layers):
            continue     

        rack_key = f"Rack_{rack_counter}"
        
        if entity.dxftype() == "LWPOLYLINE":
            handle_lwpolyline(entity, rack_key, ret)
        elif entity.dxftype() == "POLYLINE":
            handle_polyline(entity, rack_key, ret)
        else:
            continue

        rack_counter += 1

    return ret

def handle_lwpolyline(entity, rack_key, ret):
    """Verarbeitet eine 2D LWPOLYLINE mit globalem Z-Wert (elevation)."""
    z = getattr(entity.dxf, "elevation", 0.0) # hole "Erhebung" (gilt für gesamte Polyline!) aus Attributen

    ret[rack_key] = []
    for point in entity.vertices():  # returns (x, y, start_width, end_width, bulge)
        x, y, *_ = point
        ret[rack_key].append([round(x, 1), round(y, 1), round(z, 1)])

def handle_polyline(entity, rack_key, ret):
    """Verarbeitet eine klassische POLYLINE – inklusive 3D-Polylinien mit individuellen Z-Werten."""
    ret[rack_key] = []
    for vertex in entity.vertices:
        x = vertex.dxf.location.x
        y = vertex.dxf.location.y
        z = vertex.dxf.location.z
        ret[rack_key].append([round(x, 1), round(y, 1), round(z, 1)])

def scan(dxf_source:ezdxf.document.Drawing):
    layer_names_inside =  dxf_source.layers.entries.keys()
    alle_block_defs = set(dxf_source.blocks.block_names()) 
    used_block_names = set(insert.dxf.name for insert in dxf_source.modelspace().query("INSERT"))
    ret = dict()
    ret['all_layers'] = layer_names_inside
    ret['used_blocks'] = used_block_names
    ret['all_blocks'] = alle_block_defs
    return ret
    
def to_json(d, pretty: bool = True) -> str:
    return json.dumps(d, indent=2 if pretty else None, ensure_ascii=False, default=str) #ensure_ascii false für darstellung von "ue"

def get_dxf_file(filepath):
    """hole das dxf file 
    """
    try:
        print("reading file ..", end='')
        doc = ezdxf.readfile(filepath)
        print("done")
    except IOError:
        print(f"Not a DXF file or a generic I/O error.")
        sys.exit(1)
    except ezdxf.DXFStructureError:
        print(f"Invalid or corrupted DXF file.")
        sys.exit(2)
    return doc

def check_file_in_work(work_dir:Path, filename:Path):
    fexists = True
    if not filename.exists(): # dann schau im Work Ordner nach
        mypath = work_dir.joinpath(filename)
        ex = mypath.exists()
        if not mypath.exists():
            fexists = False
    else:
        mypath = filename
    return (mypath, fexists)

def check_existance(res_mappings, res_dist, res_pos):
    ret = dict()
    ret["missing_distributors"] = list()
    ret["missing_sensors"] = list()
    for dname in res_mappings.keys():
        if dname not in res_dist:
            ret["missing_distributors"].append(dname)
    for sname,lofsensors in res_mappings.items():
        for s in lofsensors:
            if s not in res_pos:
                ret['missing_sensors'].append(s)

    return ret
            
def dxf_is_binary(dxf_path):
    with open(dxf_path, 'rb') as f:
        header = f.read(22)
        return b'AutoCAD Binary DXF' in header

def validate_configs():
    errors= []

    print("\nValidating given configs: Checking for inconsistency.")

    # 1. Alle Prefixes aus Routing_include müssen in Cable_Mapping stehen (nur BMK.cfg)
    if config_BMK.has_section("Routing-Include") and config_BMK.has_section("Cable-Mapping"):
        for prefix in config_BMK.options("Routing-Include"):
            if prefix not in config_BMK["Cable-Mapping"]:
                errors.append(f"No Cable-Mapping for Prefix '{prefix}' within 'Routing-Include'")

    # 2. Jeder Eintrag in Cable-Mapping → Sektionen in kabel.cfg prüfen (Abgleich BMK.cfg und kabel.cfg)
    if config_BMK.has_section("Cable-Mapping"):
        for mapping_key, value in config_BMK.items("Cable-Mapping"):
            sections = [s.strip() for s in value.split(",")]
            for section in sections:
                if not config_cables.has_section(section):
                    errors.append(f"Cable-Section '{section}' from Cable-Mapping ({mapping_key}) missing in kabel.cfg")

    # 3. Länge in Length-Adjustments muss float >= 0 sein
    if config_BMK.has_section("Length-Adjustments"):
        for prefix, value in config_BMK.items("Length-Adjustments"):
            try:
                f = float(value)
                if f < 0:
                    errors.append(f"Negative Value in Length-Adjustments for {prefix}: {value}")
            except ValueError:
                errors.append(f"Invalid Value in Length-Adjustments for {prefix}: {value}")

    if errors:
        print("Inconsistencies found:")
        for e in errors:
            print(f"- {e}")
        print("\ncontinuing with routing process")
    else:
        print ("No inconsistencies found. Continuing with routing process.")

def check_environment_var(env_str:str) -> Path:
    out_path = os.environ.get(env_str)
    if out_path:
        return Path(out_path)
    else:
        print(f"Umgebungsvariable {env_str} ist nicht gesetzt oder leer.")
        exit()


if __name__ == '__main__':
    parser = argparse.ArgumentParser(description='fetches the x/y positions from a dxf file', prog='getpositions')
    parser.add_argument('-f', '--filename', action='store', required=True, default="ST_6300_Steuerungstestlayout1_neueBloecke.dwg", help='which file should be fetched', metavar='myfile.dxf')
    parser.add_argument('-s', '--sensors', action='store_true', help='fetch all position of sensors, motors, actors and subdistributors')
    parser.add_argument('-r', '--rack', action='store_true', help='fetch all positions of all cable racks')
    parser.add_argument('-w', '--write', action='store', help='write results into a json file')
    parser.add_argument('-c', '--console', action='store_true', help='print results to output')
    parser.add_argument('-e', '--errors', action='store', help='write an error file in case of double defined items in layout')
    parser.add_argument('-n', '--scan', action='store_true', help='print all layer of racs, distributes and equiment not empty')

    args = parser.parse_args()

    out_dir = check_environment_var('PROJECT_DATA')
    work_dir = check_environment_var('PROJECT_WORK')
    config_dir = check_environment_var("PROJECT_CFG")
    
    filename = Path(args.filename)
    if not filename.suffix == ".dxf":
        print("only available for .dxf files")
        exit()

    (dxf_path, dexists) = check_file_in_work(work_dir, filename)
    if dexists == False:
        print("no such file ")
        parser.print_help()
        exit()

    if dxf_is_binary(dxf_path):         # Wenn dxf eine binary ist, dann komplett parsen und modelspace anlegen
        print("Given .dxf-file is binary dxf. Proceeding to read file. Watch RAM-usage.")
        doc = get_dxf_file(dxf_path)
        msp = doc.modelspace()
        use_iter = False
    else:
        print("Given .dxf-file is ASCII-dxf. Proceeding to use iterative functions. Process may take longer.")
        use_iter = True

    res_sens = dict()
    res_cables = dict()
    res_dist = dict()
    res_rac = dict()
    res_mappings = dict()

    if args.sensors or args.dists or args.rack:
        
        # Allgemeine Config Laden
        config = configparser.ConfigParser(allow_no_value=True, delimiters=("="))
        config.optionxform = lambda option: option  # preserve case for letters
        config.read(os.path.join(config_dir, "allgemein.cfg"))

        # Betriebsmittelkennzeichnungs-Config laden
        config_BMK = configparser.ConfigParser(allow_no_value=True, delimiters=("="))
        config_BMK.optionxform = lambda option: option  # preserve case for letters
        config_BMK.read(os.path.join(config_dir, "BMK.cfg"))

        # Kabel-Config laden
        config_cables = configparser.ConfigParser(allow_no_value=True, delimiters=("="))
        config_cables.optionxform = lambda option: option  
        config_cables.read(os.path.join(config_dir, "kabel.cfg"))

        validate_configs()
       
        output_results = dict()

        if args.sensors:
            # Sensoren auslesen
            if use_iter:
                res_sens, res_double, missing_attribs = get_input_positions_iter(dxf_path)
            else:
                res_sens, res_double, missing_attribs = get_input_positions(msp)
            
            if args.errors and len(res_double) > 0:
                print("Duplicate blocks found. Writing errors-file.")
                err_ids = list(res_double.keys())
                write_results(to_json(list(err_ids)), work_dir, args.errors)


            output_results['sensors'] = res_sens
            #output_results['cables'] = res_cables
            
            if args.console:
                print(to_json(res_sens))

            # Mapping zu Sensoren auslesen
            (res_mappings, warnings) = create_mappings(res_sens)
            output_results['mappings'] = res_mappings
            if args.console:
                print(to_json(res_mappings))

            # Distributoren auslesen
            if use_iter:
                res_dist = get_subdistributor_positions_iter(dxf_path, res_mappings)
            else:
                res_dist = get_subdistributor_positions(msp, res_mappings)

            output_results['distributors'] = res_dist

            if args.console:
                print(to_json(res_dist))

            # Tunnel auslesen
            if use_iter:
                res_tunnel = get_tunnel_positions_iter(dxf_path)
            else:
                res_tunnel = get_tunnel_positions(msp)
            
            output_results['tunnels'] = res_tunnel
            
            if args.console:
                print(to_json(res_tunnel))

        if args.rack:
            if use_iter:
                res_rac = get_rack_positions_iter(dxf_path)
            else:
                res_rac = get_rack_positions(msp)
            
            output_results['racks'] = res_rac

            if args.console:
                print(to_json(res_rac))


        if args.write:
            basename = os.path.splitext(args.write)[0]
            res_not_found = check_existance(res_mappings, res_dist, res_sens)
            res_not_found["missing_attributes"] = warnings
            output_results["not_found"] = res_not_found
            output_results["double_ids"] = res_double
            write_results(to_json(output_results), work_dir, f"{basename}.json")

    else:
        parser.print_help()