import markers from './markers'
import { version, name } from '../package.json'

export default {
  name: name,
  version: version,
  hooks: {
    preRender: svg => {
      if (svg.attributes.get('freesewing:plugin-grainline') === false) {
        svg.attributes.set('freesewing:plugin-grainline', version)
        svg.defs += markers
      }
    },
  },
  macros: {
    grainline: function (so) {
      if (so === false) {
        delete this.points.grainlineFrom
        delete this.points.grainlineTo
        delete this.paths.grainline
        return true
      }
      let points = this.points
      points.grainlineFrom = so.from.shiftFractionTowards(so.to, 0.05)
      points.grainlineTo = so.to.shiftFractionTowards(so.from, 0.05)
      this.paths.grainline = new this.Path()
        .move(points.grainlineFrom)
        .line(points.grainlineTo)
        .attr('class', 'note')
        .attr('marker-start', 'url(#grainlineFrom)')
        .attr('marker-end', 'url(#grainlineTo)')
        .attr('data-text', 'grainline')
        .attr('data-text-class', 'center fill-note')
    },
  },
}