// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License.

import { spawnSync } from 'child_process';
import * as fs from 'fs-extra';
import minimist from 'minimist';
import * as os from 'os';
import * as path from 'path';

// command line flags
const buildArgs = minimist(process.argv.slice(2));

// --config=Debug|Release|RelWithDebInfo
const CONFIG: 'Debug' | 'Release' | 'RelWithDebInfo' =
  buildArgs.config || (os.platform() === 'win32' ? 'RelWithDebInfo' : 'Release');
if (CONFIG !== 'Debug' && CONFIG !== 'Release' && CONFIG !== 'RelWithDebInfo') {
  throw new Error(`unrecognized config: ${CONFIG}`);
}
// --arch=x64|ia32|arm64|arm
const ARCH: 'x64' | 'ia32' | 'arm64' | 'arm' = buildArgs.arch || os.arch();
if (ARCH !== 'x64' && ARCH !== 'ia32' && ARCH !== 'arm64' && ARCH !== 'arm') {
  throw new Error(`unrecognized architecture: ${ARCH}`);
}
// --onnxruntime-build-dir=
const ONNXRUNTIME_BUILD_DIR = buildArgs['onnxruntime-build-dir'];
// --onnxruntime-generator=
const ONNXRUNTIME_GENERATOR = buildArgs['onnxruntime-generator'];
// --rebuild
const REBUILD = !!buildArgs.rebuild;
// --use_dml
const USE_DML = !!buildArgs.use_dml;
// --use_webgpu
const USE_WEBGPU = !!buildArgs.use_webgpu;
// --use_cuda
const USE_CUDA = !!buildArgs.use_cuda;
// --use_tensorrt
const USE_TENSORRT = !!buildArgs.use_tensorrt;
// --use_coreml
const USE_COREML = !!buildArgs.use_coreml;
// --use_qnn
const USE_QNN = !!buildArgs.use_qnn;
// --dll_deps=
const DLL_DEPS = buildArgs.dll_deps;

// build path
const ROOT_FOLDER = path.join(__dirname, '..');
const BIN_FOLDER = path.join(ROOT_FOLDER, 'bin');
const BUILD_FOLDER = path.join(ROOT_FOLDER, 'build');

// if rebuild, clean up the dist folders
if (REBUILD) {
  fs.removeSync(BIN_FOLDER);
  fs.removeSync(BUILD_FOLDER);
}

const args = [
  'cmake-js',
  REBUILD ? 'reconfigure' : 'configure',
  `--arch=${ARCH}`,
  '--CDnapi_build_version=6',
  `--CDCMAKE_BUILD_TYPE=${CONFIG}`,
];
if (ONNXRUNTIME_BUILD_DIR && typeof ONNXRUNTIME_BUILD_DIR === 'string') {
  args.push(`--CDONNXRUNTIME_BUILD_DIR=${ONNXRUNTIME_BUILD_DIR}`);
}
if (ONNXRUNTIME_GENERATOR && typeof ONNXRUNTIME_GENERATOR === 'string') {
  args.push(`--CDONNXRUNTIME_GENERATOR=${ONNXRUNTIME_GENERATOR}`);
}
if (USE_DML) {
  args.push('--CDUSE_DML=ON');
}
if (USE_WEBGPU) {
  args.push('--CDUSE_WEBGPU=ON');
}
if (USE_CUDA) {
  args.push('--CDUSE_CUDA=ON');
}
if (USE_TENSORRT) {
  args.push('--CDUSE_TENSORRT=ON');
}
if (USE_COREML) {
  args.push('--CDUSE_COREML=ON');
}
if (USE_QNN) {
  args.push('--CDUSE_QNN=ON');
}
if (DLL_DEPS) {
  args.push(`--CDORT_NODEJS_DLL_DEPS=${DLL_DEPS}`);
}

// set CMAKE_OSX_ARCHITECTURES for macOS build
if (os.platform() === 'darwin') {
  if (ARCH === 'x64') {
    args.push('--CDCMAKE_OSX_ARCHITECTURES=x86_64');
  } else if (ARCH === 'arm64') {
    args.push('--CDCMAKE_OSX_ARCHITECTURES=arm64');
  } else {
    throw new Error(`architecture not supported for macOS build: ${ARCH}`);
  }
}

// In Windows, "npx cmake-js configure" uses a powershell script to detect the Visual Studio installation.
// The script uses the environment variable LIB. If an invalid path is specified in LIB, the script will fail.
// So we override the LIB environment variable to remove invalid paths.
const envOverride =
  os.platform() === 'win32' && process.env.LIB
    ? { ...process.env, LIB: process.env.LIB.split(';').filter(fs.existsSync).join(';') }
    : process.env;

// launch cmake-js configure
const procCmakejs = spawnSync('npx', args, { shell: true, stdio: 'inherit', cwd: ROOT_FOLDER, env: envOverride });
if (procCmakejs.status !== 0) {
  if (procCmakejs.error) {
    console.error(procCmakejs.error);
  }
  process.exit(procCmakejs.status === null ? undefined : procCmakejs.status);
}

// launch cmake to build
const procCmake = spawnSync('cmake', ['--build', '.', '--config', CONFIG], {
  shell: true,
  stdio: 'inherit',
  cwd: BUILD_FOLDER,
});
if (procCmake.status !== 0) {
  if (procCmake.error) {
    console.error(procCmake.error);
  }
  process.exit(procCmake.status === null ? undefined : procCmake.status);
}