import os
from distutils.core import setup
from distutils.extension import Extension
import numpy

try:
    from Cython.Build import cythonize
    USE_CYTHON = True
    include_dirs = [numpy.get_include()]
    ext = ".pyx"
except ImportError:
    USE_CYTHON = False
    include_dirs = []
    ext = ".c"
    print("Warning: Cython not imported")
    print("If C sources exist in the source tree, they will be used")

extensions = [Extension("karta.raster.cfill_sinks",
                        ["karta/raster/cfill_sinks"+ext],
                        include_dirs=include_dirs),
              Extension("karta.raster.crfuncs",
                        ["karta/raster/crfuncs"+ext],
                        include_dirs=include_dirs),
              Extension("karta.vector._cvectorgeo",
                        ["karta/vector/_cvectorgeo"+ext],
                        include_dirs=include_dirs)]

if USE_CYTHON:
    extensions = cythonize(extensions)

for extension in extensions:
    if False in (os.path.exists(src) for src in extension.sources):
        # C-extension sources missing, so don't try to build them
        extensions = []
        print("Warning: Extension source not found: {0}".format(extension.sources))
        print("Not building accelerated modules")
        break

setup(
    name = "karta",
    version = "0.1.0.2",
    author = "Nat Wilson",
    author_email = "njwilson23@gmail.com",
    packages = ["karta", "karta.vector", "karta.raster"],
    url = "http://njwilson23.github.io/karta/",
    description = "A tidy Python package for geospatial computation",
    long_description = """
Karta - tidy Python package for geospatial computation
======================================================

*Karta* is a Leatherman for geographic analyses. *Karta* provides an
interface for solving problems in Python (2 or 3) that works nicely with
existing packages. To this end, it provides simple and clean vector and
raster data types, a selection of analysis functions, the ability to
read and write a small number of useful formats, and interoperability
with *numpy*.

Goals of *Karta* include providing a simple, lightweight, and fast set
of tools useful for "everyday" spatial analysis, as well as a flexible
set of abstractions upon which to build more advanced routines.

CONTENTS AT A GLANCE
--------------------

-  vector

   -  guppy: Vector geometry classes (e.g. ``Point``, ``Multipoint``,
      ``Line``, ``Polygon``)
   -  gpx: GPX class for parsing and constructing GPX eXchange files
   -  geojson: Classes and functions for reading and writing GeoJSON
   -  vtk: XML-based VTK interface
   -  shp\_funcs: Shapefile-to-guppy conversions based on *pyshp*
   -  stats: Geostatistical functions
   -  xyfile: ASCII table functions

-  raster

   -  grid: Basic Grid types, including ``StructuredGrid`` and
      ``RegularGrid``
   -  aaigrid: Grid subclass specifically for reading, writing, and
      manipulating ESRI ASCII grids
   -  flow: Stream flow functions
   -  raster: General purpose raster functions
   -  streamline: Streamline calculation

-  tests : unit tests

FORMATS
-------

*Karta* provides a basic working interface to several of common file
formats. Currently partially-supported are:

-  vector

   -  ASCII tables (XYZ) (r,w)
   -  GeoJSON (r,w)
   -  GPS eXchange (GPX) (r,w)
   -  VTK (w)
   -  ESRI Shapefiles via pyshp (r,w)

-  raster

   -  ESRI ASCII Grid (r,w)
   -  USGS DEM (WIP)

INSTALLATION
------------

The easiest way to install is to use ``pip``.

::

    cd karta/
    pip install .

DEPENDENCIES
------------

Required
~~~~~~~~

-  Python 2.6+ or Python 3.2+
-  numpy

Optional
~~~~~~~~

-  pyproj (required for geodetic calculations)
-  scipy
-  Cython

Cython is an optional dependency used to speed up select functions. In
general, enhanced-performance functions will then be called
automatically when available, otherwise *Karta* will fall back to numpy
and pure-Python versions.

TESTING
-------

To run all unit tests, execute

::

    python karta/tests/test_runner.py

LICENSE
-------

This software is provided under the MIT license.

The vector module contains a snapshot of the pyshp shapefile module,
available at (http://code.google.com/p/pyshp/). This module is also
available under the MIT license.

MIT License:
~~~~~~~~~~~~

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.
""",
    download_url = "https://github.com/njwilson23/karta/archive/master.zip",
    classifiers = ["Programming Language :: Python",
                   "Programming Language :: Python :: 3",
                   "Development Status :: 4 - Beta",
                   "Topic :: Scientific/Engineering"],
    license = "MIT License",
    ext_modules = extensions
)

