import config from '../config';
import path from 'path';
import gulp from 'gulp';
import plumber from 'gulp-plumber';
import svgSprite from 'gulp-svg-sprite';

const spriteConfig = {
  mode: {
    symbol: {
      dest: './',
      sprite: path.join(
        '../',
        config.paths.images,
        'sprites.svg'
      )
    }
  },

  shape: {
    meta: path.join(
      config.paths.src,
      config.paths.images,
      config.paths.sprites,
      'sprites.yaml'
    ),
    id: {
      generator: 'icon--%s'
    }
  }
};

/**
 * Compile svg sprites into single svg file
 *
 * @param cb: callback handler passed by gulp, signals task completion when called
 */
export const sprites = (cb) => {
  gulp.src(
    path.join(
      config.paths.src,
      config.paths.images,
      config.paths.sprites,
      '*.svg'
    ))
    .pipe(plumber())
    .pipe(svgSprite(spriteConfig))
    .pipe(gulp.dest(
      path.join(
        config.paths.dest,
        config.paths.assets,
        config.paths.images
      )
    ));

  cb();
};