# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
#
# 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
import sys
import shutil
import subprocess
import platform

user_specified_dirs = ['@OPENCV_DIRECTORY@', '@ORT_DIRECTORY@', ]

def process_on_linux(current_dir):
 rpaths = ["$ORIGIN:$ORIGIN/libs"]
 fd_libs = list()
 libs_path = os.path.join(current_dir, "fastdeploy", "libs")
 for f in os.listdir(libs_path):
 filename = os.path.join(libs_path, f)
 if not os.path.isfile(filename):
 continue
 if f.count("fastdeploy") and f.count(".so") > 0:
 fd_libs.append(filename)

 cmake_build_dir = os.path.join(current_dir, ".setuptools-cmake-build")
 patchelf_bin_path = os.path.join(cmake_build_dir, "third_libs/patchelf/bin/patchelf")
 if not os.path.exists(patchelf_bin_path):
 patchelf_bin_path = "patchelf"

 third_libs_path = os.path.join(libs_path, "third_libs")

 # remove some useless opencv file in python wheels to decrease package size
 if os.path.exists(os.path.join(third_libs_path, "opencv")):
 for root, dirs, files in os.walk(os.path.join(third_libs_path, "opencv")):
 for f in files:
 items = f.strip().split('.')
 if len(items) != 4:
 os.remove(os.path.join(root, f))
 continue
 if items[0].strip() not in ["libopencv_highgui", "libopencv_video", "libopencv_videoio", "libopencv_imgcodecs", "libopencv_imgproc", "libopencv_core", "libopencv_calib3d", "libopencv_features2d", "libopencv_flann"]:
 os.remove(os.path.join(root, f))

 all_libs_paths = [third_libs_path] + user_specified_dirs
 for path in all_libs_paths:
 for root, dirs, files in os.walk(path):
 for d in dirs:
 if d not in ["lib", "lib64"]:
 continue
 rel_path = os.path.relpath(os.path.join(root, d), libs_path)
 if path in user_specified_dirs:
 # Note(zhoushunjie): Use the absolute path for user_specified_dirs
 rpath = os.path.join(root, d)
 else:
 rpath = "$ORIGIN/" + rel_path
 rpaths.append(rpath)
 for lib in fd_libs:
 command = "{} --set-rpath '{}' {}".format(patchelf_bin_path, ":".join(rpaths), lib)
 if platform.machine() != 'sw_64' and platform.machine() != 'mips64':
 assert subprocess.Popen(
 command,
 shell=True) != 0, "patchelf {} failed, the command: {}".format(
 command, lib)


def process_on_mac(current_dir):
 fd_libs = list()
 libs_path = os.path.join(current_dir, "fastdeploy", "libs")
 cmake_build_dir = os.path.join(current_dir, ".setuptools-cmake-build")
 for f in os.listdir(libs_path):
 filename = os.path.join(libs_path, f)
 if not os.path.isfile(filename):
 continue
 if f.count("fastdeploy") > 0 and (f.count(".dylib") > 0 or
 f.count(".so") > 0):
 fd_libs.append(filename)

 commands = list()
 pre_commands = list()
 for lib in fd_libs:
 if lib.count("fastdeploy_main") > 0:
 pre_commands.append(
 "install_name_tool -delete_rpath {} ".format(cmake_build_dir) + lib)
 commands.append("install_name_tool -id @loader_path " + lib)
 commands.append("install_name_tool -add_rpath @loader_path " + lib)

 third_libs_path = os.path.join(libs_path, "third_libs")
 cmake_third_libs_path = os.path.join(cmake_build_dir, "third_libs", "install")
 all_libs_paths = [cmake_third_libs_path] + user_specified_dirs
 for path in all_libs_paths:
 for root, dirs, files in os.walk(path):
 for d in dirs:
 if d not in ["lib", "lib64"]:
 continue
 rel_path = os.path.relpath(os.path.join(root, d), cmake_third_libs_path)
 if path in user_specified_dirs:
 # Note(zhoushunjie): Use the absolute path for user_specified_dirs
 need_delete_rpath = os.path.join(root, d)
 need_add_rpath = os.path.join(root, d)
 else:
 need_delete_rpath = os.path.join(root, d)
 need_add_rpath = "@loader_path/third_libs/" + rel_path
 for lib in fd_libs:
 if lib.count("fastdeploy_main") > 0:
 pre_commands.append(
 "install_name_tool -delete_rpath {} {}".format(need_delete_rpath, lib))
 commands.append(
 "install_name_tool -add_rpath {} {}".format(need_add_rpath, lib))

 for command in pre_commands:
 try:
 os.system(command)
 except:
 print("Skip execute command: " + command)

 for command in commands:
 assert os.system(
 command) == 0, "command execute failed! command: {}".format(
 command)

def process_on_windows(current_dir):
 libs_path = os.path.join(current_dir, "fastdeploy", "libs")
 third_libs_path = os.path.join(libs_path, "third_libs")
 for root, dirs, files in os.walk(third_libs_path):
 for f in files:
 file_path = os.path.join(root, f)
 if f.count('onnxruntime') > 0 and f.endswith('.dll'):
 shutil.copy(file_path, libs_path)


def get_all_files(dirname):
 files = list()
 for root, dirs, filenames in os.walk(dirname):
 for f in filenames:
 fullname = os.path.join(root, f)
 files.append(fullname)
 return files


def process_libraries(current_dir):
 if platform.system().lower() == "linux":
 process_on_linux(current_dir)
 elif platform.system().lower() == "darwin":
 process_on_mac(current_dir)
 elif platform.system().lower() == "windows":
 process_on_windows(current_dir)

 all_files = get_all_files(os.path.join(current_dir, "fastdeploy", "libs"))
 package_data = list()

 if platform.system().lower() == "windows":

 def check_windows_legal_file(f):
 # Note(zhoushunjie): Special case for some library
 # File 'plugins.xml' is special case of openvino.
 for special_file in ['plugins.xml']:
 if special_file in f:
 return True
 return False

 for f in all_files:
 if f.endswith(".pyd") or f.endswith("lib") or f.endswith(
 "dll") or check_windows_legal_file(f):
 package_data.append(
 os.path.relpath(f, os.path.join(current_dir,
 "fastdeploy")))

 return package_data

 filters = [".vcxproj", ".png", ".java", ".h", ".cc", ".cpp", ".hpp"]
 for f in all_files:
 remain = True
 for flt in filters:
 if f.count(flt) > 0:
 remain = False
 filename = os.path.split(f)[-1]
# Note(zhoushunjie): To add the trt libs below will increase the size of whl package by 450M.
 if filename in [
 "libnvinfer_plugin.so",
 "libnvinfer.so", "libnvonnxparser.so",
 "libnvparsers.so", "libnvcaffe_parser.so"
 ]:
 continue

 for lib_prefix in ["libnvinfer_plugin.so.8.",
 "libnvinfer.so.8.", "libnvonnxparser.so.8.",
 "libnvparsers.so.8.", "libnvcaffe_parser.so.8."]:
 if filename.startswith(lib_prefix):
 remain = False
 break

 if remain:
 package_data.append(
 os.path.relpath(f, os.path.join(current_dir, "fastdeploy")))
 return package_data