#!/usr/bin/python
'''
The MIT License (MIT)

Copyright (c) 2013-2014 winlin

Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
'''

"""
the community is a default demo server for srs
"""

import sys
# reload sys model to enable the getdefaultencoding method.
reload(sys)
# set the default encoding to utf-8
# using exec to set the encoding, to avoid error in IDE.
exec("sys.setdefaultencoding('utf-8')")
assert sys.getdefaultencoding().lower() == "utf-8"

import os, json, time, datetime, cherrypy, threading

# simple log functions.
def trace(msg):
    date = datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S")
    print "[%s][trace] %s"%(date, msg)

# enable crossdomain access for js-client
# define the following method:
#   def OPTIONS(self, *args, **kwargs)
#       enable_crossdomain()
# invoke this method to enable js to request crossdomain.
def enable_crossdomain():
    cherrypy.response.headers["Access-Control-Allow-Origin"] = "*"
    cherrypy.response.headers["Access-Control-Allow-Methods"] = "GET, POST, HEAD, PUT, DELETE"
    # generate allow headers for crossdomain.
    allow_headers = ["Cache-Control", "X-Proxy-Authorization", "X-Requested-With", "Content-Type"]
    cherrypy.response.headers["Access-Control-Allow-Headers"] = ",".join(allow_headers)

# error codes definition
class Error:
    # ok, success, completed.
    success = 0

# HTTP RESTful path.
class Root(object):
    exposed = True

    def __init__(self):
        self.api = Api()
    def GET(self):
        enable_crossdomain();
        return json.dumps({"code":Error.success, "urls":{"api":"the api root"}})
    def OPTIONS(self, *args, **kwargs):
        enable_crossdomain();
# HTTP RESTful path.
class Api(object):
    exposed = True

    def __init__(self):
        self.v1 = V1()
    def GET(self):
        enable_crossdomain();
        return json.dumps({"code":Error.success, 
            "urls": {
                "v1": "the api version 1.0"
            }
        });
    def OPTIONS(self, *args, **kwargs):
        enable_crossdomain();
# HTTP RESTful path. to access as:
#   http://127.0.0.1:8085/api/v1/clients
class V1(object):
    exposed = True

    def __init__(self):
        pass;
    def OPTIONS(self, *args, **kwargs):
        enable_crossdomain();

'''
main code start.
'''
# donot support use this module as library.
if __name__ != "__main__":
    raise Exception("embed not support")

# check the user options
if len(sys.argv) <= 1:
    print "SRS community server, Copyright (c) 2013-2014 winlin"
    print "Usage: python %s <port>"%(sys.argv[0])
    print "    port: the port to listen at."
    print "For example:"
    print "    python %s 1949"%(sys.argv[0])
    print ""
    print "See also: https://github.com/winlinvip/simple-rtmp-server"
    sys.exit(1)

# parse port from user options.
port = int(sys.argv[1])
static_dir = os.path.abspath(os.path.join(os.path.dirname(sys.argv[0]), "static-dir"))
trace("api server listen at port: %s, static_dir: %s"%(port, static_dir))

# cherrypy config.
conf = {
    'global': {
        'server.shutdown_timeout': 1,
        'server.socket_host': '0.0.0.0',
        'server.socket_port': port,
        'tools.encode.on': True,
        'tools.staticdir.on': True,
        'tools.encode.encoding': "utf-8",
        #'server.thread_pool': 2, # single thread server.
    },
    '/': {
        'tools.staticdir.dir': static_dir,
        'tools.staticdir.index': "index.html",
        # for cherrypy RESTful api support
        'request.dispatch': cherrypy.dispatch.MethodDispatcher()
    }
}

# start cherrypy web engine
trace("start cherrypy server")
root = Root()
cherrypy.quickstart(root, '/', conf)