#!/usr/bin/python
#
# Ceres Solver - A fast non-linear least squares minimizer
# Copyright 2013 Google Inc. All rights reserved.
# http://code.google.com/p/ceres-solver/
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright notice,
#   this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright notice,
#   this list of conditions and the following disclaimer in the documentation
#   and/or other materials provided with the distribution.
# * Neither the name of Google Inc. nor the names of its contributors may be
#   used to endorse or promote products derived from this software without
#   specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
# Author: sameeragarwal@google.com (Sameer Agarwal)
#
# Note: You will need Sphinx and Pygments installed for this to work.

import glob
import os
import sys

# Number of arguments
N = len(sys.argv)

if N < 3:
  print "make_docs.py src_root destination_root"
  sys.exit(1)

src_dir    = sys.argv[1] + "/docs/source"
build_root = sys.argv[2]
cache_dir  = build_root + "/doctrees"
html_dir   = build_root + "/html"

# Called from Command Line
if N == 3:
  sphinx_exe = "sphinx-build"

# Called from CMake (using the SPHINX_EXECUTABLE found)
elif N == 4:
  sphinx_exe = sys.argv[3]

# Run Sphinx to build the documentation.
os.system("%s -b html -d %s %s %s" %(sphinx_exe, cache_dir, src_dir, html_dir))

input_pattern = """config=TeX-AMS-MML_HTMLorMML"></script>"""
output_pattern = """config=TeX-AMS_HTML">
  MathJax.Hub.Config({
    "HTML-CSS": {
      availableFonts: ["TeX"]
    }
  });
</script>"""

# By default MathJax uses does not use TeX fonts. This simple search
# and replace fixes that.
for name in glob.glob("%s/*.html" % html_dir):
  print "Postprocessing: ", name
  fptr = open(name)
  out = fptr.read().replace(input_pattern, output_pattern)
  fptr.close()

  fptr = open(name, "w")
  fptr.write(out)
  fptr.close()