// .vuepress/config.js
// or
// .vuepress/theme/index.js

// set your global feed options - override in page frontmatter `feed`
const feed_options = {
  canonical_base: 'https://webmasterish.com',
};

module.exports = {
  plugins: [
    [ 'feed', feed_options ]
  ]
}

const {
  title,
  description
} = context.getSiteData ? context.getSiteData() : context;

// -----------------------------------------------------------------------------

// Feed class options
// @see: https://github.com/jpmonette/feed#example

const feed_options = {

  title,
  description,
  generator: PLUGIN.homepage,

  // ---------------------------------------------------------------------------

  // the following are auto populated in PLUGIN.get_options()
  // if they are not set as options
  /*
  id,
  link,
  feedLinks,
  */

  // ---------------------------------------------------------------------------

  // ref:
  /*
  title: "Feed Title",
  description: "This is my personal feed!",
  id: "http://example.com/",
  link: "http://example.com/",
  image: "http://example.com/image.png",
  favicon: "http://example.com/favicon.ico",
  copyright: "All rights reserved 2013, John Doe",
  updated: new Date(2013, 6, 14), // optional, default = today
  generator: "awesome", // optional, default = 'Feed for Node.js'
  feedLinks: {
    json: "https://example.com/json",
    atom: "https://example.com/atom"
  },
  author: {
    name: "John Doe",
    email: "[email protected]",
    link: "https://example.com/johndoe"
  }
  */

};

// -----------------------------------------------------------------------------

const default_options = {

  // required; it can also be used as enable/disable

  canonical_base: '',

  // ---------------------------------------------------------------------------

  // Feed class options - @see: https://github.com/jpmonette/feed#example
  // optional - auto-populated based on context.getSiteData()

  feed_options,

  // ---------------------------------------------------------------------------

  // @notes:
  // property name is also the name of the jpmonette/feed package function

  feeds: {

    rss2: {
      enable    : true,
      file_name : 'rss.xml',
      head_link : {
        enable: true,
        type  : 'application/rss+xml',
        title : '%%site_title%% RSS Feed',
      }
    },

    // -------------------------------------------------------------------------

    atom1: {
      enable    : true,
      file_name : 'feed.atom',
      head_link : {
        enable: true,
        type  : 'application/atom+xml',
        title : '%%site_title%% Atom Feed',
      }
    },

    // -------------------------------------------------------------------------

    json1: {
      enable    : true,
      file_name : 'feed.json',
      head_link : {
        enable: true,
        type  : 'application/json',
        title : '%%site_title%% JSON Feed',
      }
    },

  },

  // ---------------------------------------------------------------------------

  // page/post description sources

  // order of what gets the highest priority:
  //
  // 1. frontmatter
  // 2. page excerpt
  // 3. content markdown paragraph
  // 4. content regular html <p>

  description_sources: [

    'frontmatter',
    'excerpt',

    // markdown paragraph regex
    // @todo: needs work
    //
    /^((?:(?!^#)(?!^\-|\+)(?!^[0-9]+\.)(?!^!\[.*?\]\((.*?)\))(?!^\[\[.*?\]\])(?!^\{\{.*?\}\})[^\n]|\n(?! *\n))+)(?:\n *)+\n/gim,
    //
    // this excludes blockquotes using `(?!^>)`
    ///^((?:(?!^#)(?!^\-|\+)(?!^[0-9]+\.)(?!^!\[.*?\]\((.*?)\))(?!^>)(?!^\[\[.*?\]\])(?!^\{\{.*?\}\})[^\n]|\n(?! *\n))+)(?:\n *)+\n/gim,

    // html paragraph regex
    /<p(?:.*?)>(.*?)<\/p>/i,

  ],

  // ---------------------------------------------------------------------------

  // page/post image sources

  // order of what gets the highest priority:
  //
  // 1. frontmatter
  // 2. content markdown image such as `![alt text](http://url)`
  // 3. content regular html img

  image_sources: [

    'frontmatter',

    /!\[.*?\]\((.*?)\)/i,         // markdown image regex
    /<img.*?src=['"](.*?)['"]/i,  // html image regex

  ],

  // ---------------------------------------------------------------------------

  // pages in current directories will be auto added as feed
  // unless they are disabled using their frontmatter
  // this option is used by the default is_feed_page function

  posts_directories: ['/blog/', '/_posts/'],

  // ---------------------------------------------------------------------------

  // function to check if the page is to be used in a feed item

  is_feed_page: PLUGIN.is_feed_page, // function

  // ---------------------------------------------------------------------------

  count: 20,

  // optional sorting function for the entries. 
  // Gets the array entries as the input, expects the sorted array
  // as its output.
  // e.g.:   sort:  entries => _.reverse( _.sortBy( entries, 'date' ) ),
  // Don't forget to do a `const _ = require('lodash');` to be able to use `_`!

  sort: entries => entries,

  // ---------------------------------------------------------------------------

  // supported - use in config as needed

  // category
  // contributor

};