import sys
import os
from meshroom.core import desc


class ImageMatching(desc.CommandLineNode):
    internalFolder = '{cache}/{nodeType}/{uid0}/'
    commandLine = 'aliceVision_imageMatching {allParams}'
    size = desc.DynamicNodeSize('input')

    inputs = [
        desc.File(
            name='input',
            label='Input',
            description='''SfMData file or filepath to a simple text file with one image filepath per line, or path to the descriptors folder.''',
            value='',
            uid=[0],
        ),
        desc.File(
            name='featuresFolder',
            label='Features Folder',
            description='''Folder containing the extracted features and descriptors. By default, it is the folder containing the SfMData.''',
            value='',
            uid=[0],
        ),
        desc.File(
            name='tree',
            label='Tree',
            description='''Input name for the vocabulary tree file.''',
            value=os.environ.get('ALICEVISION_VOCTREE', ''),
            uid=[0],
        ),
        desc.IntParam(
            name='minNbImages',
            label='Minimal Number of Images',
            description='''Minimal number of images to use the vocabulary tree. If we have less features than this threshold, we will compute all matching combinations.''',
            value=200,
            range=(0, 500, 1),
            uid=[0],
        ),
        desc.IntParam(
            name='maxDescriptors',
            label='Max Descriptors',
            description='''Limit the number of descriptors you load per image. Zero means no limit.''',
            value=500,
            range=(0, 100000, 1),
            uid=[0],
        ),
        desc.IntParam(
            name='nbMatches',
            label='Nb Matches',
            description='''The number of matches to retrieve for each image (If 0 it will retrieve all the matches).''',
            value=50,
            range=(0, 1000, 1),
            uid=[0],
        ),
        desc.File(
            name='weights',
            label='Weights',
            description='''Input name for the weight file, if not provided the weights will be computed on the database built with the provided set.''',
            value='',
            uid=[0],
        ),
        desc.ChoiceParam(
            name='verboseLevel',
            label='Verbose Level',
            description='''verbosity level (fatal, error, warning, info, debug, trace).''',
            value='info',
            values=['fatal', 'error', 'warning', 'info', 'debug', 'trace'],
            exclusive=True,
            uid=[],
        )
    ]

    outputs = [
        desc.File(
            name='output',
            label='Output',
            description='''Filepath to the output file with the list of selected image pairs.''',
            value='{cache}/{nodeType}/{uid0}/imageMatches.txt',
            uid=[],
        ),
    ]