const createPaginatedPages = require('gatsby-paginate');

exports.createPages = ({ graphql, actions: { createPage } }) => {
	return new Promise((resolve, reject) => {
		graphql(`
      {
        blog: craft {
          entriesConnection(section: [yoursectionhandle]) {
            edges {
              node {
                ... on Craft_YourBlogHandle {
                  // STUFF HERE
                }
              }
            }
          }
				}
      }
   `).then((result) => {
      createPaginatedPages({
				edges: result.data.blog.entriesConnection.edges,
				createPage: createPage,
				pageTemplate: 'src/templates/blogPaginate.js',
				pageLength: 24, 
				pathPrefix: 'blog', 
				buildPath: (index, pathPrefix) =>
						index > 1 ? `${pathPrefix}/${index}` :
						`/${pathPrefix}`, 
				context: {
					allPosts: result.data.blog.entriesConnection.edges,
					slug: result.data.blog.entriesConnection.edges.slug
				} 
			});
			result.data.blog.entriesConnection.edges.forEach(({ node }, index) => {
				createPage({
					path: `blog/${node.slug}`,
					component: path.resolve(`./src/templates/blogEntry.js`),
					context: {
						prevPost:
								index === 0 ? 'null' :
								result.data.blog.entriesConnection.edges[index - 1].node.slug,
						nextPost:
								index === result.data.blog.entriesConnection.edges.length - 1 ? 'null' :
								result.data.blog.entriesConnection.edges[index + 1].node.slug,
						slug: node.slug
					}
				});
			});
      resolve();
    });
  };