#!/usr/bin/env python3
#
# Routino data statistics
#
# Part of the Routino routing software.
#
# This file Copyright 2008-2014, 2016, 2025 Andrew M. Bishop
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
#

import subprocess
import os
import sys


# Change directory to the CGI location and add it at the beginning of the module search path.

cgidir = os.path.dirname(__file__)

if sys.path[0] != cgidir:
    sys.path.insert(0,cgidir)

# Use the directory paths
import paths                    # pylint: disable=wrong-import-position

# Load CGI functions
import cgifunctions             # pylint: disable=wrong-import-position


#
# The WSCGI handling function
#

def application(environ, start_response): # pylint: disable=unused-argument

    # Run the filedumper

    exeparams = [os.path.join(cgidir,paths.bin_dir,paths.filedumper_exe)]

    exeparams.append(f"--dir={os.path.join(cgidir,paths.data_dir)}")
    if paths.data_prefix != "":
        exeparams.append(f"--prefix={paths.data_prefix}")

    exeparams.append("--statistics")

    # Run the filedumper

    try:
        EXECUTE = subprocess.Popen(exeparams, stdout=subprocess.PIPE)
    except OSError:
        start_response("500 Error running process",[('Content-type', 'text/plain')])
        return [b"Error executing process to complete this request."]

    # WSGI application return values

    start_response("200 OK", [('Content-type', 'text/plain; charset=utf-8')])

    return cgifunctions.procstream(EXECUTE)


#
# From command line for debugging
#

if __name__ == '__main__':

    environ = {
        'REQUEST_SCHEME': "http",
        'HTTP_HOST': "routino.org",
        "REQUEST_URI": "/test/statistics.cgi",
        'QUERY_STRING': ";".join(sys.argv[1:])
    }

    for x in application(environ,lambda c,lh: print("\n".join([c]+[f"{h[0]}: {h[1]}" for h in lh]+[""]))):
        print(x.decode(encoding='utf-8'),end="")