const {query} = require("../client")

class Comment {
  /**
   * @param {string} id 
   * @param {string} subject 
   * @param {string} author 
   * @param {string} characterName 
   * @param {CommentCharacter} character 
   * @param {string | number | Date} fictionalDate 
   * @param {string | number | Date} createdDate 
   * @param {string | number | Date} editedDate 
   * @param {string} source 
   */
  constructor(id, subject, author, characterName, character, fictionalDate, createdDate, editedDate, source) {
    this.id = id
    this.subject = subject
    this.author = author
    this.characterName = characterName
    this.character = character != null ? CommentCharacter.fromData(character) : null
    this.fictionalDate = fictionalDate != null ? new Date(fictionalDate) : null
    this.createdDate = new Date(createdDate)
    this.editedDate = new Date(editedDate)
    this.source = source
  }

  static fromData(data) {
    return new Comment(data.id, data.subject, data.author, data.characterName, data.character, data.fictionalDate, data.createdDate, data.editedDate, data.source)
  }
}

class CommentCharacter {
  /**
   * @param {string} id 
   * @param {string} name 
   * @param {string} author 
   * @param {string} description 
   */
  constructor(id, name, author, description) {
    this.id = id
    this.name = name
    this.author = author
    this.description = description
  }

  static fromData(data) {
    return new CommentCharacter(data.id, data.name, data.author, data.description)
  }
}

class CommentAPI {
  /**
   * @param {string} id 
   * @returns {Promise<Comment>}
   */
  find(id) {
    return query(`
      query FindComment($id: String!) {
        comment(id: $id) {
          id
          subject
          author
          characterName
          character {
            id
            name
            author
            description
          }
          fictionalDate
          createdDate
          editedDate
          source
        }
      }
    `, {id}).then(({comment}) => {
      return new Comment(
        comment.id, comment.subject, comment.author,
        comment.characterName, comment.character,
        comment.fictionalDate, comment.createdDate,
        comment.editedDate, comment.source,
      )
    })
  }

  /**
   * @param {any} input 
   * @returns {Promise<Comment>}
   */
  addComment(input) {
    return query(`
      mutation AddComment($input: CommentAddInput!) {
        addComment(input: $input) {
          id
          subject
          author
          characterName
          character {
            id
            name
            author
            description
          }
          fictionalDate
          createdDate
          editedDate
          source
        }
      }
    `, {input}).then(({comment}) => {
      return new Comment(
        comment.id, comment.subject, comment.author,
        comment.characterName, comment.character,
        comment.fictionalDate, comment.createdDate,
        comment.editedDate, comment.source,
      )
    })
  }
}

module.exports = {Comment, CommentCharacter, commentApi: new CommentAPI}