import sys
import os

import math
import progress.bar
import glob

# allow import from parent directory
sys.path.append(os.path.dirname(sys.path[0]))

import pygds as gds

global bar

def callback(parser):
    global bar

    bar.max = parser.total
    bar.index = parser.current
    bar.update()

for arg in glob.glob("{}/tests/*.gds".format(sys.path[0])):
    f = open(arg, "rb")
    try:
        bar = progress.bar.IncrementalBar("parsing file")
        lib = gds.parse_file(f, progress_func=callback)
        print()

        print("file version: {}".format(lib.version))
        print("last access: {}".format(lib.last_access.isoformat()))
        print("last modification: {}".format(lib.last_mod.isoformat()))
        print("m/unit : {}".format(lib.meters_per_unit))
        print("unit/dbunit : {}".format(lib.units_per_dbunit))

        print("library name : {}".format(lib.name))
        print("contains a total of {} structure(s)".format(len(lib.structures)))

        for name in lib.structures.keys():
            #print(name, end = " ")
            print("- {}".format(name))
            for elem in lib.structures[name].elements:
                if isinstance(elem, gds.Boundary):
                    for coord in elem.points:
                        coord = (coord[0] * lib.units_per_dbunit , coord[1] * lib.units_per_dbunit)
        
        print("linking structure references")
        lib.link_all_refs(callback)

    #except gds.ParserError as e:
    #    print("parser error: {}".format(e))
    #    exit(1)
    except KeyboardInterrupt:
        continue
    finally:
        f.close()

print("all done")