import VulcanEmail from 'meteor/vulcan:email';

// note: leverage weak dependencies on packages
const Comments = Package['vulcan:comments'] ? Package['vulcan:comments'].default : null;
const Posts = Package['vulcan:posts'] ? Package['vulcan:posts'].default : null;

VulcanEmail.addEmails({
  
  newUser: {
    template: "newUser",
    path: "/email/new-user/:_id?",
    subject() {
      return "A new user has been created";
    },
    query: `
      query UsersSingleQuery($documentId: String){
        UsersSingle(documentId: $documentId){
          displayName
          pageUrl
        }
      }
    `
  },

  accountApproved: {
    template: "accountApproved",
    path: "/email/account-approved/:_id?",
    subject() {
      return "Your account has been approved.";
    },
    query: `
      query UsersSingleQuery($documentId: String){
        UsersSingle(documentId: $documentId){
          displayName
        }
        SiteData{
          title
          url
        }
      }
    `
  }

});

if (!!Posts) {
  
  const postsQuery = `
    query PostsSingleQuery($documentId: String){
      PostsSingle(documentId: $documentId){
        title
        url
        pageUrl
        linkUrl
        htmlBody
        thumbnailUrl
        user{
          pageUrl
          displayName
        }
      }
    }
  `
  
  const dummyPost = {title: '[title]', user: {displayName: '[user]'}};

  VulcanEmail.addEmails({
    
    newPost: {
      template: "newPost",
      path: "/email/new-post/:_id?",
      subject(data) {
        const post = _.isEmpty(data) ? dummyPost : data.PostsSingle;
        return post.user.displayName+' has created a new post: '+post.title;
      },
      query: postsQuery
    },
    
    newPendingPost: {
      template: "newPendingPost",
      path: "/email/new-pending-post/:_id?",
      subject(data) {
        const post = _.isEmpty(data) ? dummyPost : data.PostsSingle;
        return post.user.displayName+' has a new post pending approval: '+post.title;
      },
      query: postsQuery
    },
    
    postApproved: {
      template: "postApproved",
      path: "/email/post-approved/:_id?",
      subject(data) {
        const post = _.isEmpty(data) ? dummyPost : data.PostsSingle;
        return 'Your post “'+post.title+'” has been approved';
      },
      query: postsQuery
    }
    
  });
  
}


if (!!Comments) {
  
  const commentsQuery = `
    query CommentsSingleQuery($documentId: String){
      CommentsSingle(documentId: $documentId){
        pageUrl
        htmlBody
        post{
          pageUrl
          title
        }
        user{
          pageUrl
          displayName
        }
      }
    }
  `    

  const dummyComment = {post: {title: '[title]'}, user: {displayName: '[user]'}};

  VulcanEmail.addEmails({

    newComment: {
      template: "newComment",
      path: "/email/new-comment/:_id?",
      subject(data) {
        const comment = _.isEmpty(data) ? dummyComment : data.CommentsSingle;
        return comment.user.displayName+' left a new comment on your post "' + comment.post.title + '"';
      },
      query: commentsQuery
    },

    newReply: {
      template: "newReply",
      path: "/email/new-reply/:_id?",
      subject(data) {
        const comment = _.isEmpty(data) ? dummyComment : data.CommentsSingle;
        return comment.user.displayName+' replied to your comment on "'+comment.post.title+'"';
      },
      query: commentsQuery
    },

    newCommentSubscribed: {
      template: "newComment",
      path: "/email/new-comment-subscribed/:_id?",
      subject(data) {
        const comment = _.isEmpty(data) ? dummyComment : data.CommentsSingle;
        return comment.user.displayName+' left a new comment on "' + comment.post.title + '"';
      },
      query: commentsQuery
    }

  });
  
}