import Telescope from 'meteor/nova:lib';
import Comments from './collection.js';
import Users from 'meteor/nova:users';


// check if user can create a new comment
const canInsert = user => Users.canDo(user, "comments.new");

// check if user can edit a comment
const canEdit = Users.canEdit;

// check if user can edit *all* comments
const canEditAll = user => Users.canDo(user, "comments.edit.all");

const alwaysPublic = user => true;

/**
 * @summary Comments schema
 * @type {SimpleSchema}
 */
Comments.schema = new SimpleSchema({
  /**
    ID
  */
  _id: {
    type: String,
    optional: true,
    publish: true,
    viewableIf: alwaysPublic,
  },
  /**
    The `_id` of the parent comment, if there is one
  */
  parentCommentId: {
    type: String,
    // regEx: SimpleSchema.RegEx.Id,
    max: 500,
    viewableIf: alwaysPublic,
    insertableIf: canInsert,
    optional: true,
    publish: true,
    control: "none" // never show this
  },
  /**
    The `_id` of the top-level parent comment, if there is one
  */
  topLevelCommentId: {
    type: String,
    // regEx: SimpleSchema.RegEx.Id,
    max: 500,
    viewableIf: alwaysPublic,
    insertableIf: canInsert,
    optional: true,
    publish: true,
    control: "none" // never show this
  },
  /**
    The timestamp of comment creation
  */
  createdAt: {
    type: Date,
    optional: true,
    publish: false,
    viewableIf: canEditAll,
  },
  /**
    The timestamp of the comment being posted. For now, comments are always created and posted at the same time
  */
  postedAt: {
    type: Date,
    optional: true,
    publish: true,
    viewableIf: alwaysPublic,
  },
  /**
    The comment body (Markdown)
  */
  body: {
    type: String,
    max: 3000,
    viewableIf: alwaysPublic,
    insertableIf: canInsert,
    editableIf: canEdit,
    publish: true,
    control: "textarea"
  },
  /**
    The HTML version of the comment body
  */
  htmlBody: {
    type: String,
    optional: true,
    publish: true,
    viewableIf: alwaysPublic,
  },
  /**
    The comment author's name
  */
  author: {
    type: String,
    optional: true,
    publish: true,
    viewableIf: alwaysPublic,
  },
  /**
    Whether the comment is inactive. Inactive comments' scores gets recalculated less often
  */
  inactive: {
    type: Boolean,
    optional: true,
    publish: true,
    viewableIf: alwaysPublic,
  },
  /**
    The post's `_id`
  */
  postId: {
    type: String,
    optional: true,
    publish: true,
    viewableIf: alwaysPublic,
    // regEx: SimpleSchema.RegEx.Id,
    max: 500,
    form: {
      omit: true // never show this
    }
  },
  /**
    The comment author's `_id`
  */
  userId: {
    type: String,
    optional: true,
    publish: true,
    viewableIf: alwaysPublic,
    join: {
      joinAs: "user",
      collection: () => Users
    }
  },
  /**
    Whether the comment is deleted. Delete comments' content doesn't appear on the site. 
  */
  isDeleted: {
    type: Boolean,
    optional: true,
    publish: true,
    viewableIf: alwaysPublic,
  },
  userIP: {
    type: String,
    optional: true,
    publish: false,
    viewableIf: canEditAll,
  },
  userAgent: {
    type: String,
    optional: true,
    publish: false,
    viewableIf: canEditAll,
  },
  referrer: {
    type: String,
    optional: true,
    publish: false,
    viewableIf: canEditAll,
  }
});

Comments.attachSchema(Comments.schema);

if (typeof Telescope.notifications !== "undefined") {
  Comments.addField({
    fieldName: 'disableNotifications',
    fieldSchema: {
      type: Boolean,
      optional: true,
      form: {
        omit: true
      }
    }
  });
}

Comments.graphQLSchema = `
  type Comment {
    _id: String
    parentComment: Comment
    topLevelComment: Comment
    createdAt: String
    postedAt: String
    body: String
    htmlBody: String
    author: String
    inactive: Boolean
    post: Post
    user: User
    isDeleted: Boolean
    isDummy: Boolean
    upvotes: Int
    upvoters: [User]
    downvotes: Int
    downvoters: [User]
    baseScore: Int
    score: Float
  }
`

Telescope.graphQL.addSchema(Comments.graphQLSchema);

Telescope.graphQL.addQuery(`
  comments: [Comment]
  comment(_id: String): Comment
`);