import argparse
import json

from surf.geometry import PolygonMesh
from surf.subd import cc
from surf.subd import butterfly


if __name__ == '__main__':
    parser = argparse.ArgumentParser(description='Manually subdivide mesh '
            '(first argument) and dump json to stdout')
    parser.add_argument('type', choices=('cc', 'butterfly'))
    parser.add_argument('mesh')
    parser.add_argument('refines', type=int)
    opt = parser.parse_args()

    cube = json.load(open(opt.mesh, 'r'))
    p = PolygonMesh(**cube)

    if opt.type == 'cc':
        refine = cc.refine
    else:
        refine = butterfly.refine

    for i in range(opt.refines):
        p = refine(p)
    print(p)