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# Copyright (C) 2015 Codethink Limited
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program.  If not, see <http://www.gnu.org/licenses/>.


from bottle import Bottle, template


def make_table(data, headings):
    '''Render 'data' as a HTML table.'''

    table_template = """
    <table border="1">
    <tr>
    %for header in headings:
        <td>{{header}}</td>
    %end
    </tr>
    %for row in rows:
    <tr>
    %for header in headings:
        <td>{{row[header]}}</td>
    %end
    </tr>
    %end
    </table>
    """
    return template(table_template, headings=headings, rows=data)


def web_frontend(db):
    '''Some pretty stuff for users to interact with.'''
    app = Bottle()

    @app.get('/artifacts')
    def artifacts():
        '''View artifacts in the cache.'''

        content = '<p>Artifacts:</p>'

        artifacts = db.view_artifact_statistics()
        content += make_table(
            artifacts, ['cache_name', 'n_different_builds', 'n_builds'])

        return template('morphcacheserver/templates/base', base=content)

    @app.get('/')
    def frontpage():
        '''A nice frontpage.'''

        return template('morphcacheserver/templates/index')

    return app