ONOS_ORIGIN = 'ON.Lab'
ONOS_VERSION = '1.6.0-SNAPSHOT'
DEFAULT_APP_CATEGORY = 'Utility'

def onos_app(
        app_name,
        title,
        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 = [],
        excluded_bundles = [],
        **kwargs):

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

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

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