/**
 * @file gulpfile 编译文件
 */

import path from 'path';
import gulp from 'gulp';
import babel from 'gulp-babel';
import ts from 'gulp-typescript';
import merge from 'merge2';
import less from 'gulp-less';
import minifyCss from 'gulp-minify-css';
import rename from 'gulp-rename';
import replace from 'gulp-replace';
import configVue from './packages/vue/tsconfig.json';
import configVueNext from './packages/vue-next/tsconfig.json';
import configSVG from './packages/svg/tsconfig.json';
import configReact from './packages/react/tsconfig.json';

const TS_CONFIG_MAP = {
    react: configReact,
    vue: configVue,
    svg: configSVG,
    'vue-next': configVueNext,
};

const BABEL_CONFIG_MAP = {
    react: {
        presets: [
            [
                '@babel/preset-env',
                {
                    modules: false,
                    targets: {
                        browsers: ['> 1%', 'last 2 versions', 'not ie <= 8'],
                    },
                },
            ],
            '@babel/preset-react',
        ],
        plugins: [
            [
                '@babel/plugin-proposal-class-properties',
                {
                    loose: false,
                },
            ],
        ],
    },
    vue: {
        presets: [
            [
                '@babel/preset-env',
                {
                    modules: false,
                    targets: {
                        browsers: ['> 1%', 'last 2 versions', 'not ie <= 8'],
                    },
                },
            ],
            '@vue/babel-preset-jsx',
        ],
        plugins: [
            [
                '@babel/plugin-proposal-class-properties',
                {
                    loose: false,
                },
            ],
        ],
    },
    'vue-next': {
        presets: [
            [
                '@babel/preset-env',
                {
                    modules: false,
                    targets: {
                        browsers: ['> 1%', 'last 2 versions', 'not ie <= 8'],
                    },
                },
            ],
        ],
        plugins: [
            [
                '@babel/plugin-proposal-class-properties',
                {
                    loose: false,
                },
            ],
            '@vue/babel-plugin-jsx',
        ],
    },
    svg: {
        presets: [
            [
                '@babel/preset-env',
                {
                    modules: false,
                    targets: {
                        browsers: ['> 1%', 'last 2 versions', 'not ie <= 8'],
                    },
                },
            ],
        ],
        plugins: [
            [
                '@babel/plugin-proposal-class-properties',
                {
                    loose: false,
                },
            ],
        ],
    },
};

function resolve(...arg: string[]): string {
    return path.resolve(process.cwd(), ...arg);
}

function createBuildTask(name: 'react' | 'vue' | 'svg' | 'vue-next'): string {
    const cwd = resolve('packages/', name);

    gulp.task('build-script-' + name, () => {
        const result = gulp
            .src(['src/*.ts', 'src/*.tsx', 'src/**/*.ts', 'src/**/*.tsx'], {
                cwd,
            })
            .pipe(ts(TS_CONFIG_MAP[name].compilerOptions));
        /**
         * sinc vue@3.x is installed under alias: 'alias-for-vue3', we need to
         * replace it back to 'vue' in the compiled colde & type description before publish
         */
        const isVueNext = name === 'vue-next';
        let jsResultStream = isVueNext ? result.js.pipe(replace('alias-for-vue3', 'vue')) : result.js;
        let dtsResultStream = isVueNext ? result.dts.pipe(replace('alias-for-vue3', 'vue')) : result.dts;
        return merge([
            jsResultStream
                .pipe(babel(BABEL_CONFIG_MAP[name]))
                .pipe(gulp.dest(cwd + '/es'))
                .pipe(
                    babel({
                        plugins: ['@babel/plugin-transform-modules-commonjs'],
                    }),
                )
                .pipe(gulp.dest(cwd + '/lib')),
            dtsResultStream
                .pipe(gulp.dest(cwd + '/es'))
                .pipe(gulp.dest(cwd + '/lib')),
        ]);
    });

    gulp.task('build-copy-icons-json-' + name, () => {
        return gulp
            .src(resolve('source/icons-config.json'))
            .pipe(rename('icons.json'))
            .pipe(gulp.dest(cwd));
    });

    const tasks = ['build-script-' + name, 'build-copy-icons-json-' + name];

    if (name !== 'svg') {
        gulp.task('build-css-' + name, () => {
            return gulp
                .src('src/runtime/index.less', { cwd })
                .pipe(less())
                .pipe(minifyCss())
                .pipe(gulp.dest(cwd + '/styles'));
        });

        gulp.task('build-less-' + name, () => {
            return gulp
                .src('src/runtime/index.less', { cwd })
                .pipe(gulp.dest(cwd + '/styles'));
        });

        tasks.push('build-css-' + name, 'build-less-' + name);
    }

    gulp.task('build-' + name, gulp.parallel(tasks));

    return 'build-' + name;
}

gulp.task(
    'default',
    gulp.parallel(
        createBuildTask('react'),
        createBuildTask('vue'),
        createBuildTask('vue-next'),
        createBuildTask('svg')
    )
)