#!/usr/bin/python3

import argparse

from importlib import import_module

import json

import os

from urllib.request import urlretrieve

import string

import sys

import chainscript

import plugins

from wpobject import wpObject

def showParameterList(paramDef):

print(' {}'.format(data['description']))

def showPluginList(pluginsGet, pluginsProc):

print('* PROCESS: {}'.format(name))

def showPlugin(pluginsGet, pluginsProc, identifier):

showParameterList(plugin.PARAMETERS)

def findFile(name, path, ext):

return name + ext

# _MAIN_ CODE #################################################################

exec_rel = os.path.join(os.getcwd(), sys.argv[0])

exec_abs = os.path.realpath(exec_rel)

path = os.path.dirname(exec_abs)

plugGet = plugins.load(path, 'get')

plugProc = plugins.load(path, 'proc')

parser = argparse.ArgumentParser(description = 'Find wallpapers online and manipulate them.', add_help = False)

parser.add_argument('script', nargs = '?', help = 'the wallpaper script to execute (look in subdir scripts)')

parser.add_argument('-h', '--help', action = 'store_true', help = 'show global or script help and exit')

parser.add_argument('-p', '--plugins', nargs = '?', const = '', help = 'list all plugins OR show details for a given plugin')

parser.add_argument('-q', '--quiet', action = 'store_true', help = 'give no output (even if errors occur)')

parser.add_argument('-v', '--verbose', action = 'store_true', help = 'give detailed output')

arguments, script_arguments = parser.parse_known_args()

if arguments.help and arguments.script is None:

parser.print_help()

elif arguments.plugins is not None:

if len(arguments.plugins) == 0:

showPluginList(plugGet, plugProc)

else:

showPlugin(plugGet, plugProc, arguments.plugins)

else:

verbosity = 1

if arguments.quiet:

verbosity = 0

elif arguments.verbose:

verbosity = 2

processingChain = chainscript.parse(plugGet, plugProc, findFile(arguments.script, os.path.join(path, 'scripts'), '.json'), arguments.help, script_arguments)

# Give feedback

if verbosity > 0:

print('Executing: {}'.format(' - '.join([step['name'] for step in processingChain])))

# Execute get task

img = wpObject()

step = processingChain[0]

if verbosity > 1:

print(' - {}'.format(step['name']))

print(' configuration: {}'.format(step['config']))

step['plugin'].do(img, step['config'])

if verbosity > 1:

print(img.caption)

print(img.description)

img.download()

# Execute remainder of the chain

for step in processingChain[1:]:

if verbosity > 1:

print(' - {}'.format(step['name']))

print(' configuration: {}'.format(step['config']))

step['plugin'].do(img, step['config'])

# Give feedback again

if verbosity > 1:

print('done!')

if verbosity > 0:

if img.errors:

print('There were errors:')

for error in img.errors:

print('E {}: {}'.format(error, img.errors[error]))