# -*- coding: utf-8 -*-

#-------------------------------------------------------------------------
# drawElements Quality Program utilities
# --------------------------------------
#
# Copyright 2015 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
#-------------------------------------------------------------------------

import os
from build.common import *
from build.build import *
from argparse import ArgumentParser
import multiprocessing
from build_android_mustpass import *

class LaunchControlConfig:
	def __init__ (self, buildArgs, checkMustpassLists):
		self.buildArgs			= buildArgs
		self.checkMustpassLists = checkMustpassLists

	def getBuildArgs (self):
		return self.buildArgs

	def getCheckMustpassLists (self):
		return self.checkMustpassLists

COMMON_GCC_CFLAGS	= ["-Werror"]
COMMON_CLANG_CFLAGS	= COMMON_GCC_CFLAGS + ["-Wno-error=unused-command-line-argument"]
X86_64_GCC_CFLAGS	= COMMON_GCC_CFLAGS + ["-m64"]
X86_64_CLANG_CFLAGS	= COMMON_CLANG_CFLAGS + ["-m64"]

def makeCflagsArgs (cflags):
	cflagsStr = " ".join(cflags)
	return ["-DCMAKE_C_FLAGS=%s" % cflagsStr, "-DCMAKE_CXX_FLAGS=%s" % cflagsStr]

BUILD_CONFIGS = {
	"gcc-x86_64-x11_glx":   LaunchControlConfig(["-DDEQP_TARGET=x11_glx"] + makeCflagsArgs(X86_64_GCC_CFLAGS), False),
	"clang-x86_64-x11_glx": LaunchControlConfig(["-DDEQP_TARGET=x11_glx", "-DCMAKE_C_COMPILER=clang", "-DCMAKE_CXX_COMPILER=clang++"] + makeCflagsArgs(X86_64_CLANG_CFLAGS), False),
	"gcc-x86_64-null":		LaunchControlConfig(["-DDEQP_TARGET=null"] + makeCflagsArgs(X86_64_GCC_CFLAGS), True)
}

def buildWithMake (workingDir):
	pushWorkingDir(workingDir)
	# CMake docs advised this to be the best magic formula...
	threadCount = multiprocessing.cpu_count() + 1
	print "Invoke make with %d threads" % threadCount
	execute(["make", "-j%d" % threadCount])
	popWorkingDir()

def checkForChanges ():
	pushWorkingDir(DEQP_DIR)
	# If there are changed files, exit code will be non-zero and the script terminates immediately.
	execute(["git", "diff", "--exit-code"])
	popWorkingDir()

def parseOptions ():
	parser = ArgumentParser()

	parser.add_argument("-d",
						"--build-dir",
						dest="buildDir",
						default="out",
						help="Temporary build directory")
	parser.add_argument("-c",
						"--config",
						dest="config",
						choices=BUILD_CONFIGS.keys(),
						required=True,
						help="Build configuration name")
	parser.add_argument("-t",
						"--build-type",
						dest="buildType",
						choices=["Debug", "Release"],
						default="Debug",
						help="Build type")
	return parser.parse_args()

if __name__ == "__main__":
	options = parseOptions()

	print "\n############################################################"
	print "# %s %s BUILD" % (options.config.upper(), options.buildType.upper())
	print "############################################################\n"

	launchControlConfig = BUILD_CONFIGS[options.config]
	buildDir = os.path.realpath(os.path.normpath(options.buildDir))
	config = BuildConfig(buildDir, options.buildType, launchControlConfig.getBuildArgs())
	initBuildDir(config, MAKEFILE_GENERATOR)
	buildWithMake(buildDir)

	if launchControlConfig.getCheckMustpassLists():
		genMustpassLists(MUSTPASS_LISTS, MAKEFILE_GENERATOR, config)
		checkForChanges()

	print "\n--- BUILD SCRIPT COMPLETE"