#
# Copyright (C) 2017  Red Hat, Inc.
#
# 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; either version 2 of the License, or
# (at your option) any later version.
#
# 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/>.
#
import logging
log = logging.getLogger("lorax-composer")

from collections import namedtuple
from flask import Flask, jsonify, redirect, send_from_directory
from glob import glob
import os

from pylorax import vernum
from pylorax.api.crossdomain import crossdomain
from pylorax.api.v0 import v0_api
from pylorax.sysutils import joinpaths

GitLock = namedtuple("GitLock", ["repo", "lock", "dir"])
YumLock = namedtuple("YumLock", ["yb", "lock"])

server = Flask(__name__)

__all__ = ["server", "GitLock"]

@server.route('/')
def server_root():
    redirect("/api/docs/")

@server.route("/api/docs/")
@server.route("/api/docs/<path:path>")
def api_docs(path=None):
    # Find the html docs
    try:
        # This assumes it is running from the source tree
        docs_path = os.path.abspath(joinpaths(os.path.dirname(__file__), "../../../docs/html"))
    except IndexError:
        docs_path = glob("/usr/share/doc/lorax-*/html/")[0]

    if not path:
        path="index.html"
    return send_from_directory(docs_path, path)

@server.route("/api/status")
@crossdomain(origin="*")
def v0_status():
    """
    `/api/v0/status`
    ^^^^^^^^^^^^^^^^
    Return the status of the API Server::

          { "api": "0",
            "build": "devel",
            "db_supported": true,
            "db_version": "0",
            "schema_version": "0",
            "backend": "lorax-composer"}
    """
    return jsonify(backend="lorax-composer",
                   build=vernum,
                   api="0",
                   db_version="0",
                   schema_version="0",
                   db_supported=True)

v0_api(server)