# Requires Python 2.4 or better and win32api.

"""Config on Msys mingw

This version expects the Pygame 1.9.0 dependencies as built by
msys_build_deps.py
"""

import dll
from setup_win_common import get_definitions
import msys
import os, sys, string
from glob import glob
from distutils.sysconfig import get_python_inc

configcommand = os.environ.get('SDL_CONFIG', 'sdl-config',)
configcommand = configcommand + ' --version --cflags --libs'
localbase = os.environ.get('LOCALBASE', '')

#these get prefixes with '/usr/local' and /mingw or the $LOCALBASE
origincdirs = ['/include', '/include/SDL', '/include/SDL11',
               '/include/libpng12', ]
origlibdirs = ['/lib']


class ConfigError(Exception):
    pass

def path_join(a, *p):
    return os.path.join(a, *p).replace(os.sep, '/')
path_split = os.path.split

def print_(*args, **kwds):
    return msys.msys_print(*args, **kwds)

def confirm(message):
    "ask a yes/no question, return result"
    if not sys.stdout.isatty():
        return False
    reply = msys.msys_raw_input("\n%s [Y/n]:" % message)
    if reply and string.lower(reply[0]) == 'n':
        return False
    return True

class DependencyProg:
    needs_dll = True
    def __init__(self, name, envname, exename, minver, msys, defaultlibs=None):
        if defaultlibs is None:
            defaultlibs = [dll.name_to_root(name)]
        self.name = name
        try:
            command = os.environ[envname]
        except KeyError:
            command = exename
        else:
            drv, pth = os.path.splitdrive(command)
            if drv:
                command = '/' + drv[0] + pth
        self.lib_dir = ''
        self.inc_dir = ''
        self.libs = []
        self.cflags = ''
        try:
            config = msys.run_shell_command([command, '--version', '--cflags', '--libs'])
            ver, flags = config.split('\n', 1)
            self.ver = ver.strip()
            flags = flags.split()
            if minver and self.ver < minver:
                err= 'WARNING: requires %s version %s (%s found)' % (self.name, self.ver, minver)
                raise ValueError(err)
            self.found = 1
            self.cflags = ''
            for f in flags:
                if f[:2] in ('-I', '-L'):
                    self.cflags += f[:2] + msys.msys_to_windows(f[2:]) + ' '
                elif f[:2] in ('-l', '-D'):
                    self.cflags += f + ' '
                elif f[:3] == '-Wl':
                    self.cflags += '-Xlinker ' + f + ' '
        except:
            print_('WARNING: "%s" failed!' % command)
            self.found = 0
            self.ver = '0'
            self.libs = defaultlibs

    def configure(self, incdirs, libdir):
        if self.found:
            print_(self.name + '        '[len(self.name):] + ': found ' + self.ver)
            self.found = 1
        else:
            print_(self.name + '        '[len(self.name):] + ': not found')

class Dependency:
    needs_dll = True
    def __init__(self, name, checkhead, checklib, libs=None):
        if libs is None:
            libs = [dll.name_to_root(name)]
        self.name = name
        self.inc_dir = None
        self.lib_dir = None
        self.libs = libs
        self.found = 0
        self.checklib = checklib
        self.checkhead = checkhead
        self.cflags = ''
    
    def configure(self, incdirs, libdirs):
        self.find_inc_dir(incdirs)
        self.find_lib_dir(libdirs)
        
        if self.lib_dir and self.inc_dir:
            print_(self.name + '        '[len(self.name):] + ': found')
            self.found = 1
        else:
            print_(self.name + '        '[len(self.name):] + ': not found')

    def find_inc_dir(self, incdirs):
        incname = self.checkhead
        for dir in incdirs:
            path = path_join(dir, incname)
            if os.path.isfile(path):
                self.inc_dir = dir
                return

    def find_lib_dir(self, libdirs):
        libname = self.checklib
        for dir in libdirs:
            path = path_join(dir, libname)
            if filter(os.path.isfile, glob(path+'*')):
                self.lib_dir = dir
                return

        
class DependencyPython:
    needs_dll = False
    def __init__(self, name, module, header):
        self.name = name
        self.lib_dir = ''
        self.inc_dir = ''
        self.libs = []
        self.cflags = ''
        self.found = 0
        self.ver = '0'
        self.module = module
        self.header = header
 
    def configure(self, incdirs, libdirs):
        self.found = 1
        if self.module:
            try:
                self.ver = __import__(self.module).__version__
            except ImportError:
                self.found = 0
        if self.found and self.header:
            fullpath = path_join(get_python_inc(0), self.header)
            if not os.path.isfile(fullpath):
                self.found = 0
            else:
                self.inc_dir = os.path.split(fullpath)[0]
        if self.found:
            print_(self.name + '        '[len(self.name):] + ': found', self.ver)
        else:
            print_(self.name + '        '[len(self.name):] + ': not found')

class DependencyDLL:
    needs_dll = False
    def __init__(self, name, libs=None):
        if libs is None:
            libs = dll.libraries(name)
        self.name = 'COPYLIB_' + dll.name_to_root(name)
        self.inc_dir = None
        self.lib_dir = '_'
        self.libs = libs
        self.found = 1  # Alway found to make its COPYLIB work
        self.cflags = ''
        self.lib_name = name
        self.file_name_test = dll.tester(name)

    def configure(self, incdirs, libdirs, start=None):
        omit = []
        if start is not None:
            if self.set_path(start):
                return
            omit.append(start)
            p, f = path_split(start)
            if f == 'lib' and self.set_path(path_join(p, 'bin')):
                return
            omit.append(start)
        # Search other directories
        for dir in libdirs:
            if dir not in omit:
                if self.set_path(dir):
                    return
                p, f = path_split(dir)
                if f == 'lib' and self.set_path(path_join(p, 'bin')):  # cond. and
                    return

    def set_path(self, wdir):
        test = self.file_name_test
        try:
            files = os.listdir(wdir)
        except:
            pass
        else:
            for f in files:
                if test(f) and os.path.isfile(path_join(wdir, f)):
                    # Found
                    self.lib_dir = path_join(wdir, f)
                    return True
        # Not found
        return False

class DependencyWin:
    needs_dll = False
    def __init__(self, name, cflags):
        self.name = name
        self.inc_dir = None
        self.lib_dir = None
        self.libs = []
        self.found = 1
        self.cflags = cflags
        
    def configure(self, incdirs, libdirs):
        pass


def main():
    m = msys.Msys(require_mingw=False)
    print_('\nHunting dependencies...')
    DEPS = [
        DependencyProg('SDL', 'SDL_CONFIG', 'sdl-config', '1.2.13', m),
        Dependency('FONT', 'SDL_ttf.h', 'libSDL_ttf.dll.a'),
        Dependency('IMAGE', 'SDL_image.h', 'libSDL_image.dll.a'),
        Dependency('MIXER', 'SDL_mixer.h', 'libSDL_mixer.dll.a'),
        Dependency('PNG', 'png.h', 'libpng.dll.a'),
        Dependency('JPEG', 'jpeglib.h', 'libjpeg.dll.a'),
        Dependency('PORTMIDI', 'portmidi.h', 'libportmidi.dll.a'),
        Dependency('PORTTIME', 'portmidi.h', 'libportmidi.dll.a'),
        DependencyDLL('TIFF'),
        DependencyDLL('VORBISFILE'),
        DependencyDLL('VORBIS'),
        DependencyDLL('OGG'),
        DependencyDLL('FREETYPE'),
        DependencyDLL('Z'),
    ]

    if not DEPS[0].found:
        print_('Unable to run "sdl-config". Please make sure a development version of SDL is installed.')
        sys.exit(1)

    if localbase:
        incdirs = [localbase+d for d in origincdirs]
        libdirs = [localbase+d for d in origlibdirs]
    else:
        incdirs = []
        libdirs = []
    incdirs += [m.msys_to_windows("/usr/local"+d) for d in origincdirs]
    libdirs += [m.msys_to_windows("/usr/local"+d) for d in origlibdirs]
    if m.mingw_root is not None:
        incdirs += [m.msys_to_windows("/mingw"+d) for d in origincdirs]
        libdirs += [m.msys_to_windows("/mingw"+d) for d in origlibdirs]
    for arg in string.split(DEPS[0].cflags):
        if arg[:2] == '-I':
            incdirs.append(arg[2:])
        elif arg[:2] == '-L':
            libdirs.append(arg[2:])
    dll_deps = []
    for d in DEPS:
        d.configure(incdirs, libdirs)
        if d.needs_dll:
            dll_dep = DependencyDLL(d.name)
            dll_dep.configure(incdirs, libdirs, d.lib_dir)
            dll_deps.append(dll_dep)

    DEPS += dll_deps
    for d in get_definitions():
        DEPS.append(DependencyWin(d.name, d.value))
    for d in DEPS:
        if isinstance(d, DependencyDLL):
            if d.lib_dir == '':
                print_("DLL for %-12s: not found" % d.lib_name)
            else:
                print_("DLL for %-12s: %s" % (d.lib_name, d.lib_dir))
    
    for d in DEPS[1:]:
        if not d.found:
            if "-auto" not in sys.argv and not confirm("""
Warning, some of the pygame dependencies were not found. Pygame can still
compile and install, but games that depend on those missing dependencies
will not run. Would you like to continue the configuration?"""):
                raise SystemExit("Missing dependencies")
            break

    return DEPS

if __name__ == '__main__':
    print_("""This is the configuration subscript for MSYS.
Please run "config.py" for full configuration.""")

