const { execSync } = require('child_process');
const path = require('path');
const fse = require('fs-extra');

const webpack = require('webpack');
const webpackMerge = require('webpack-merge');
const webpackNodeExternals = require('webpack-node-externals');
const webpackNodeTerser = require('terser-webpack-plugin');

async function buildForProduction(args) {
  const rootPath = path.join(__dirname, '..');

  const projectName = args[0];

  const projectPath = path.join(rootPath, 'projects', projectName);

  const packageJson = require(path.join(projectPath, 'package.json'));
  const ucapPackageJson = require(path.join(projectPath, 'ucap-package.json'));

  const distPath = path.join(projectPath, ucapPackageJson.dest);
  const docPath = path.join(projectPath, ucapPackageJson.docDest);

  const webpackConfig = (overrideConfig, compilerOptions) => {
    const commonConfig = {
      name: projectName,
      target: 'node',
      mode: 'production',
      context: path.join(projectPath, 'src'),
      entry: path.join(projectPath, ucapPackageJson.lib.entryFile),
      output: {
        path: path.join(distPath, 'bundles'),
        filename: `${projectName}.umd.js`,
        libraryTarget: 'umd',
        library: projectName,
        umdNamedDefine: true
      },
      resolve: {
        extensions: ['.js', '.ts', '.jsx', '.tsx', '.json'],
        modules: ['node_modules', 'src']
      },
      externals: [webpackNodeExternals()],
      devtool: 'source-map',
      module: {
        rules: [
          {
            test: /\.tsx?$/,
            use: [
              {
                loader: 'ts-loader',
                options: {
                  configFile: path.join(projectPath, 'tsconfig.lib.prod.json'),
                  compilerOptions: !!compilerOptions
                    ? compilerOptions
                    : {
                        declaration: false,
                        module: 'ES2015',
                        target: 'es5'
                      }
                }
              }
            ],
            exclude: /node_modules/
          }
        ]
      }
    };

    return webpackMerge(commonConfig, overrideConfig);
  };

  const clean = () => {
    return new Promise((resolve, reject) => {
      const _distPath = path.join(distPath);
      console.log(`${projectName}: cleaning started [${_distPath}]`);
      execSync(`rimraf ${_distPath}`, {
        stdio: 'inherit'
      });
      console.log(`${projectName}: cleaning complete`);
      resolve();
    });
  };

  const genDeclaration = () => {
    return new Promise((resolve, reject) => {
      console.log(`${projectName}: generating of declaration started`);
      execSync(
        `tsc --project ${path.join(
          projectPath,
          'tsconfig.lib.prod.json'
        )} --module commonjs --target es5 --outDir ${path.join(
          distPath,
          'lib'
        )} --emitDeclarationOnly true --declarationDir ${path.join(distPath)}`,
        { stdio: 'inherit' }
      );
      console.log(`${projectName}: generating of declaration complete`);
      resolve();
    });
  };

  const genEs5 = () => {
    return new Promise((resolve, reject) => {
      console.log(`${projectName}: generating of es5 started`);
      execSync(
        `tsc --project ${path.join(
          projectPath,
          'tsconfig.lib.prod.json'
        )} --module es2015 --target es5 --outDir ${path.join(
          distPath,
          'es5'
        )} --declaration false --sourceMap false --inlineSourceMap true`,
        { stdio: 'inherit' }
      );
      console.log(`${projectName}: generating of es5 complete`);
      resolve();
    });
  };

  const genEs2015 = () => {
    return new Promise((resolve, reject) => {
      console.log(`${projectName}: generating of es2015 started`);
      execSync(
        `tsc --project ${path.join(
          projectPath,
          'tsconfig.lib.prod.json'
        )} --module es2015 --target es2015 --outDir ${path.join(
          distPath,
          'es2015'
        )} --declaration false --sourceMap false --inlineSourceMap true`,
        { stdio: 'inherit' }
      );
      console.log(`${projectName}: generating of es2015 complete`);
      resolve();
    });
  };

  const genBundles = () => {
    return new Promise(async (resolve, reject) => {
      console.log(`${projectName}: generating of bundle[umd] started`);
      await new Promise((resolve, reject) => {
        webpack(
          webpackConfig({ optimization: { minimize: false } }),
          (err, status) => {
            if (!!err) {
              console.err(err);
              reject(err);
              return;
            }

            resolve();
          }
        );
      }).catch(reason => {
        reject(reason);
      });

      await new Promise((resolve, reject) => {
        webpack(
          webpackConfig({
            output: {
              filename: `${projectName}.umd.min.js`
            },
            optimization: { minimizer: [new webpackNodeTerser()] }
          }),
          (err, status) => {
            if (!!err) {
              console.err(err);
              reject(err);
              return;
            }

            resolve();
          }
        );
      }).catch(reason => {
        reject(reason);
      });

      console.log(`${projectName}: generating of bundle[umd] complete`);
      resolve();
    });
  };

  const genFes5 = () => {
    return new Promise(async (resolve, reject) => {
      console.log(`${projectName}: generating of fes5 started`);
      await new Promise((resolve, reject) => {
        webpack(
          webpackConfig(
            {
              output: {
                path: path.join(distPath, 'fes5'),
                filename: `${projectName}.js`,
                library: projectName
              },
              optimization: { minimize: false }
            },
            {
              declaration: false,
              module: 'es2015',
              target: 'es5'
            }
          ),
          (err, status) => {
            if (!!err) {
              console.err(err);
              reject(err);
              return;
            }

            resolve();
          }
        );
      }).catch(reason => {
        reject(reason);
      });

      console.log(`${projectName}: generating of fes5 complete`);
      resolve();
    });
  };

  const genFes2015 = () => {
    return new Promise(async (resolve, reject) => {
      console.log(`${projectName}: generating of fes2015 started`);
      await new Promise((resolve, reject) => {
        webpack(
          webpackConfig(
            {
              output: {
                path: path.join(distPath, 'fes2015'),
                filename: `${projectName}.js`,
                library: projectName
              },
              optimization: { minimize: false }
            },
            {
              declaration: false,
              module: 'es2015',
              target: 'es2015'
            }
          ),
          (err, status) => {
            if (!!err) {
              console.err(err);
              reject(err);
              return;
            }

            resolve();
          }
        );
      }).catch(reason => {
        reject(reason);
      });

      console.log(`${projectName}: generating of fes2015 complete`);
      resolve();
    });
  };

  const genPackageJson = () => {
    return new Promise((resolve, reject) => {
      console.log(`${projectName}: generating of package.json started`);
      const projectpackageJson = {
        ...packageJson,
        main: `bundles/${projectName}.umd.js`,
        module: `fes5/${projectName}.js`,
        es2015: `fes2015/${projectName}.js`,
        esm5: `es5/public-api.js`,
        esm2015: `es2016/public-api.js`,
        fesm5: `fes5/${projectName}.js`,
        fesm2015: `fes2015/${projectName}.js`,
        typings: `public-api.d.ts`,
        sideEffects: false
      };

      fse.writeFileSync(
        path.join(distPath, 'package.json'),
        JSON.stringify(projectpackageJson)
      );

      console.log(`${projectName}: generating of package.json complete`);
      resolve();
    });
  };

  const installPackage = () => {
    return new Promise((resolve, reject) => {
      console.log(`${projectName}: installation for local started`);
      process.chdir(path.join(distPath));
      execSync(`npm pack`, { stdio: 'inherit' });
      process.chdir(path.join(rootPath));
      const projectVersion = require(path.join(distPath, 'package.json'))
        .version;

      execSync(
        `npm install -D ${path.join(
          distPath,
          `ucap-electron-${projectName}-${projectVersion}.tgz`
        )}`,
        {
          stdio: 'inherit'
        }
      );

      execSync(
        `rimraf ${path.join(
          distPath,
          `ucap-electron-${projectName}-${projectVersion}.tgz`
        )}`,
        {
          stdio: 'inherit'
        }
      );

      console.log(`${projectName}: installation for local complete`);
      resolve();
    });
  };

  const genDoc = () => {
    return new Promise((resolve, reject) => {
      console.log(`${projectName}: generating of doc started`);
      execSync(`rimraf ${path.join(docPath)}`, {
        stdio: 'inherit'
      });

      execSync(
        `typedoc --out ${path.join(docPath)} ${path.join(projectPath, 'src')}`,
        { stdio: 'inherit' }
      );

      console.log(`${projectName}: generating of doc complete`);
      resolve();
    });
  };

  await clean();
  await genDeclaration();
  await genEs5();
  await genEs2015();
  await genBundles();
  await genFes5();
  await genFes2015();
  await genPackageJson();
  await installPackage();
  await genDoc();
}

buildForProduction(process.argv.slice(2));