ONOS_ORIGIN = 'ON.Lab'
ONOS_VERSION = '1.6.0-SNAPSHOT'
DEFAULT_APP_CATEGORY = 'Utility'
ONOS_ARTIFACT_BASE = 'onos-'
APP_PREFIX = 'org.onosproject.'

import os.path

# FIXME Factor this into common place
def _get_name():
    base_path = get_base_path()
    return ONOS_ARTIFACT_BASE + base_path.replace('/', '-') #TODO Unix-separator

def _get_app_name():
    base_path = get_base_path()
    return APP_PREFIX + os.path.basename(base_path)

def onos_app(
        app_name = None,
        name = None,
        title = None,
        version = ONOS_VERSION,
        origin = ONOS_ORIGIN,
        category = DEFAULT_APP_CATEGORY,
        url = None,
        description = None, #TODO make this a file
        #TODO icon,
        feature_coords = None,
        required_features = [ 'onos-api' ],
        required_apps = [],
        included_bundles = None,
        excluded_bundles = [],
        visibility = [ 'PUBLIC' ],
        **kwargs):
    if name is None:
        name = _get_name()

    if app_name is None:
        app_name = _get_app_name()

    if title is None:
        print "Missing title for %s" % _get_name()
        title = _get_app_name()

    if included_bundles is None:
        target = ':' + _get_name()
        included_bundles = [ target ]

    if not feature_coords and len(included_bundles) == 1:
        feature_coords = '$(maven_coords %s)' % included_bundles[0]

    if not feature_coords:
        print 'Missing maven coordinates for %s app feature.' % name
        return

    args = [ '-n %s' % feature_coords,
             '-v %s' % version,
             '-t "%s"' % title,
             '-o "%s"' % origin,
             '-c "%s"' % category,
             '-a "%s"' % app_name,
             '-u %s' % url,
             ]
    args += [ '-f %s' % f for f in required_features ]
    args += [ '-b $(maven_coords %s)' % b for b in included_bundles ]
    args += [ '-e $(maven_coords %s)' % b for b in excluded_bundles ]
    args += [ '-d %s' % a for a in required_apps ]

    cmd = '$(exe //buck-tools:onos-app-writer) -F ' + ' '.join(args) + ' > $OUT'
    genrule(
        name = name + '-features',
        bash = cmd,
        out = 'features.xml',
        visibility = [],
    )
    cmd = '$(exe //buck-tools:onos-app-writer) -A ' + ' '.join(args) + ' > $OUT'
    genrule(
        name = name + '-app-xml',
        bash = cmd,
        out = 'app.xml',
        visibility = [],
    )

    sources = [
        '$(location :%s-features) %s' % (name, feature_coords),
        '$(location :%s-app-xml) NONE' % name,
    ]
    sources += ['$(location %s) $(maven_coords %s)' % (i, i) for i in included_bundles]
    genrule(
        name = name + '-oar',
        out = 'app.oar',
        bash = '$(exe //buck-tools:onos-app-oar) $OUT ' + ' '.join(sources),
        visibility = visibility,
    )