#!/usr/bin/env python3

import sys
import os
import os.path
import glob
import re

if sys.version_info < (3,):
    def isbasestring(s):
        return isinstance(s,basestring)
else:
    def isbasestring(s):
        return isinstance(s, (str,bytes))

def add_kel_source_files(self, sources, filetype, lib_env=None, shared=False, target_post=""):

    if isbasestring(filetype):
        dir_path = self.Dir('.').abspath
        filetype = sorted(glob.glob(dir_path+"/"+filetype))

    for path in filetype:
        target_name = re.sub( r'(.*?)(\.cpp|\.c\+\+)', r'\1' + target_post, path )
        if shared:
            target_name+='.os'
            sources.append( self.SharedObject( target=target_name, source=path ) )
        else:
            target_name+='.o'
            sources.append( self.StaticObject( target=target_name, source=path ) )
    pass

def isAbsolutePath(key, dirname, env):
	assert os.path.isabs(dirname), "%r must have absolute path syntax" % (key,)

## Environment variables
env_vars = Variables(
	args=ARGUMENTS
)
env_vars.Add('prefix',
	help='Installation target location of build results and headers',
	default='/usr/local/',
	validator=isAbsolutePath
)

## Environment setup

env=Environment(ENV=os.environ, variables=env_vars, CPPPATH=['#source/forstio','#source','#','#driver'],
    CXX='clang++',
    CPPDEFINES=['SAW_UNIX'],
    CXXFLAGS=['-std=c++20','-g','-Wall','-Wextra'],
    LIBS=[])
env.__class__.add_source_files = add_kel_source_files
env.Tool('compilation_db');
env.cdb = env.CompilationDatabase('compile_commands.json');


env.objects = []
env.sources = []
env.headers = []

env.tls_sources = []
env.tls_headers = []

env.driver_sources = []
env.driver_headers = []

Export('env')
SConscript('driver/SConscript')
SConscript('source/forstio/SConscript')

# Tests
SConscript('test/SConscript')

env.Alias('test', env.test_program)

# Clang format part
env.Append(BUILDERS={'ClangFormat' : Builder(action = 'clang-format --style=file -i $SOURCE')})
env.Append(BUILDERS={'ClangTidyFix' : Builder(action = 'clang-tidy -extra-arg-before=-xc++ --fix $SOURCE -- -std=c++17 -DSAW_UNIX -Isource')})
env.format_actions = []
def format_iter(env,files):
    for f in files:
        env.format_actions.append(env.AlwaysBuild(env.ClangFormat(target=f+"-clang-format",source=f)));
    pass

env.tidy_actions = []
def tidy_iter(env,files):
    string_of_files = "";
    for f in files:
        if(f != "/home/keldu/workspace/forstio/source/forstio/async.tmpl.h" ): 
            string_of_files = string_of_files + " " + f;
            # env.tidy_actions.append(env.AlwaysBuild(env.ClangTidyFix(target=f+"-clang-tidy-fix",source=f)));
    print(string_of_files);
    pass

format_iter(env,env.sources + env.driver_sources + env.headers + env.driver_headers)
tidy_iter(env,env.sources + env.driver_sources + env.headers + env.driver_headers)

env.Alias('format', env.format_actions);
env.Alias('tidy', env.tidy_actions);

env.Alias('cdb', env.cdb);
env.Alias('all', ['format', 'library', 'test'])
env.Default('all')

env.Install('$prefix/lib/', [env.library_shared, env.library_static])
env.Install('$prefix/include/forstio/', [env.headers])
env.Install('$prefix/include/forstio/tls/', [env.tls_headers])

env.Install('$prefix/include/forstio/test/', [env.test_headers])
env.Alias('install', '$prefix')