#!/bin/env python
import sdbusplus
import mako.lookup
import argparse

def main():
    valid_types = { 'interface': sdbusplus.Interface }
    valid_processes = { 'markdown' : "markdown",
                        'server-header' : "server_header" }

    parser = argparse.ArgumentParser(description='Process sdbus++ YAML files.')

    parser.add_argument('-r', '--rootdir', dest='rootdir', default='example',
                        type=str, help='Location of files to process.')
    parser.add_argument('-t', '--templatedir', dest='templatedir',
                        default='templates', type=str,
                        help='Location of templates files.')
    parser.add_argument('typeName', metavar='TYPE', type=str,
                        choices=valid_types.keys(), help='Type to operate on.')
    parser.add_argument('process', metavar='PROCESS', type=str,
                        choices=valid_processes.keys(),
                        help='Process to apply.')
    parser.add_argument('item', metavar='ITEM', type=str,
                        help='Item to process.')

    args = parser.parse_args();

    lookup = mako.lookup.TemplateLookup(directories=[args.templatedir])

    instance = valid_types[args.typeName].load(args.item, args.rootdir)
    function = getattr(instance, valid_processes[args.process])
    print(function(lookup))

if __name__ == '__main__':
    main()