feat(modals): modals, input text components and modal submits, v13 style (#7431)

src/client/actions/InteractionCreate.js

@@ -6,6 +6,7 @@ const AutocompleteInteraction = require('../../structures/AutocompleteInteractio
 const ButtonInteraction = require('../../structures/ButtonInteraction');
 const CommandInteraction = require('../../structures/CommandInteraction');
 const MessageContextMenuInteraction = require('../../structures/MessageContextMenuInteraction');
+const ModalSubmitInteraction = require('../../structures/ModalSubmitInteraction');
 const SelectMenuInteraction = require('../../structures/SelectMenuInteraction');
 const UserContextMenuInteraction = require('../../structures/UserContextMenuInteraction');
 const { Events, InteractionTypes, MessageComponentTypes, ApplicationCommandTypes } = require('../../util/Constants');
@@ -59,6 +60,9 @@ class InteractionCreateAction extends Action {
       case InteractionTypes.APPLICATION_COMMAND_AUTOCOMPLETE:
         InteractionType = AutocompleteInteraction;
         break;
+      case InteractionTypes.MODAL_SUBMIT:
+        InteractionType = ModalSubmitInteraction;
+        break;
       default:
         client.emit(Events.DEBUG, `[INTERACTION] Received interaction with unknown type: ${data.type}`);
         return;

src/errors/Messages.js

@@ -58,6 +58,14 @@ const Messages = {
   SELECT_OPTION_VALUE: 'MessageSelectOption value must be a string',
   SELECT_OPTION_DESCRIPTION: 'MessageSelectOption description must be a string',
 
+  TEXT_INPUT_CUSTOM_ID: 'TextInputComponent customId must be a string',
+  TEXT_INPUT_LABEL: 'TextInputComponent label must be a string',
+  TEXT_INPUT_PLACEHOLDER: 'TextInputComponent placeholder must be a string',
+  TEXT_INPUT_VALUE: 'TextInputComponent value must be a string',
+
+  MODAL_CUSTOM_ID: 'Modal customId must be a string',
+  MODAL_TITLE: 'Modal title must be a string',
+
   INTERACTION_COLLECTOR_ERROR: reason => `Collector received no interactions before ending with reason: ${reason}`,
 
   FILE_NOT_FOUND: file => `File could not be found: ${file}`,
@@ -148,6 +156,10 @@ const Messages = {
   COMMAND_INTERACTION_OPTION_NO_SUB_COMMAND_GROUP: 'No subcommand group specified for interaction.',
   AUTOCOMPLETE_INTERACTION_OPTION_NO_FOCUSED_OPTION: 'No focused option for autocomplete interaction.',
 
+  MODAL_SUBMIT_INTERACTION_FIELD_NOT_FOUND: customId => `Required field with custom id "${customId}" not found.`,
+  MODAL_SUBMIT_INTERACTION_FIELD_TYPE: (customId, type, expected) =>
+    `Field with custom id "${customId}" is of type: ${type}; expected ${expected}.`,
+
   INVITE_MISSING_SCOPES: 'At least one valid scope must be provided for the invite',
 
   NOT_IMPLEMENTED: (what, name) => `Method ${what} not implemented on ${name}.`,

src/index.js

@@ -122,6 +122,8 @@ exports.MessageMentions = require('./structures/MessageMentions');
 exports.MessagePayload = require('./structures/MessagePayload');
 exports.MessageReaction = require('./structures/MessageReaction');
 exports.MessageSelectMenu = require('./structures/MessageSelectMenu');
+exports.Modal = require('./structures/Modal');
+exports.ModalSubmitInteraction = require('./structures/ModalSubmitInteraction');
 exports.NewsChannel = require('./structures/NewsChannel');
 exports.OAuth2Guild = require('./structures/OAuth2Guild');
 exports.PartialGroupDMChannel = require('./structures/PartialGroupDMChannel');
@@ -140,6 +142,7 @@ exports.StoreChannel = require('./structures/StoreChannel');
 exports.Team = require('./structures/Team');
 exports.TeamMember = require('./structures/TeamMember');
 exports.TextChannel = require('./structures/TextChannel');
+exports.TextInputComponent = require('./structures/TextInputComponent');
 exports.ThreadChannel = require('./structures/ThreadChannel');
 exports.ThreadMember = require('./structures/ThreadMember');
 exports.Typing = require('./structures/Typing');

src/structures/BaseCommandInteraction.js

@@ -196,6 +196,8 @@ class BaseCommandInteraction extends Interaction {
   editReply() {}
   deleteReply() {}
   followUp() {}
+  showModal() {}
+  awaitModalSubmit() {}
 }
 
 InteractionResponses.applyToClass(BaseCommandInteraction, ['deferUpdate', 'update']);

src/structures/BaseMessageComponent.js

@@ -4,7 +4,7 @@ const { TypeError } = require('../errors');
 const { MessageComponentTypes, Events } = require('../util/Constants');
 
 /**
- * Represents an interactive component of a Message. It should not be necessary to construct this directly.
+ * Represents an interactive component of a Message or Modal. It should not be necessary to construct this directly.
  * See {@link MessageComponent}
  */
 class BaseMessageComponent {
@@ -15,18 +15,20 @@ class BaseMessageComponent {
    */
 
   /**
-   * Data that can be resolved into options for a MessageComponent. This can be:
+   * Data that can be resolved into options for a component. This can be:
    * * MessageActionRowOptions
    * * MessageButtonOptions
    * * MessageSelectMenuOptions
+   * * TextInputComponentOptions
    * @typedef {MessageActionRowOptions|MessageButtonOptions|MessageSelectMenuOptions} MessageComponentOptions
    */
 
   /**
-   * Components that can be sent in a message. These can be:
+   * Components that can be sent in a payload. These can be:
    * * MessageActionRow
    * * MessageButton
    * * MessageSelectMenu
+   * * TextInputComponent
    * @typedef {MessageActionRow|MessageButton|MessageSelectMenu} MessageComponent
    * @see {@link https://discord.com/developers/docs/interactions/message-components#component-object-component-types}
    */
@@ -51,10 +53,10 @@ class BaseMessageComponent {
   }
 
   /**
-   * Constructs a MessageComponent based on the type of the incoming data
+   * Constructs a component based on the type of the incoming data
    * @param {MessageComponentOptions} data Data for a MessageComponent
    * @param {Client|WebhookClient} [client] Client constructing this component
-   * @returns {?MessageComponent}
+   * @returns {?(MessageComponent|ModalComponent)}
    * @private
    */
   static create(data, client) {
@@ -79,6 +81,11 @@ class BaseMessageComponent {
         component = data instanceof MessageSelectMenu ? data : new MessageSelectMenu(data);
         break;
       }
+      case MessageComponentTypes.TEXT_INPUT: {
+        const TextInputComponent = require('./TextInputComponent');
+        component = data instanceof TextInputComponent ? data : new TextInputComponent(data);
+        break;
+      }
       default:
         if (client) {
           client.emit(Events.DEBUG, `[BaseMessageComponent] Received component with unknown type: ${data.type}`);
@@ -90,7 +97,7 @@ class BaseMessageComponent {
   }
 
   /**
-   * Resolves the type of a MessageComponent
+   * Resolves the type of a component
    * @param {MessageComponentTypeResolvable} type The type to resolve
    * @returns {MessageComponentType}
    * @private

src/structures/Interaction.js

@@ -173,6 +173,14 @@ class Interaction extends Base {
     return InteractionTypes[this.type] === InteractionTypes.APPLICATION_COMMAND && typeof this.targetId !== 'undefined';
   }
 
+  /**
+   * Indicates whether this interaction is a {@link ModalSubmitInteraction}
+   * @returns {boolean}
+   */
+  isModalSubmit() {
+    return InteractionTypes[this.type] === InteractionTypes.MODAL_SUBMIT;
+  }
+
   /**
    * Indicates whether this interaction is a {@link UserContextMenuInteraction}
    * @returns {boolean}

src/structures/MessageActionRow.js

@@ -12,14 +12,16 @@ class MessageActionRow extends BaseMessageComponent {
    * Components that can be placed in an action row
    * * MessageButton
    * * MessageSelectMenu
-   * @typedef {MessageButton|MessageSelectMenu} MessageActionRowComponent
+   * * TextInputComponent
+   * @typedef {MessageButton|MessageSelectMenu|TextInputComponent} MessageActionRowComponent
    */
 
   /**
    * Options for components that can be placed in an action row
    * * MessageButtonOptions
    * * MessageSelectMenuOptions
-   * @typedef {MessageButtonOptions|MessageSelectMenuOptions} MessageActionRowComponentOptions
+   * * TextInputComponentOptions
+   * @typedef {MessageButtonOptions|MessageSelectMenuOptions|TextInputComponentOptions} MessageActionRowComponentOptions
    */
 
   /**

src/structures/MessageComponentInteraction.js

@@ -101,6 +101,8 @@ class MessageComponentInteraction extends Interaction {
   followUp() {}
   deferUpdate() {}
   update() {}
+  showModal() {}
+  awaitModalSubmit() {}
 }
 
 InteractionResponses.applyToClass(MessageComponentInteraction);

src/structures/Modal.js

@@ -0,0 +1,103 @@
+'use strict';
+
+const BaseMessageComponent = require('./BaseMessageComponent');
+const Util = require('../util/Util');
+
+/**
+ * Represents a modal (form) to be shown in response to an interaction
+ */
+class Modal {
+  /**
+   * @typedef {Object} ModalOptions
+   * @property {string} [customId] A unique string to be sent in the interaction when clicked
+   * @property {string} [title] The title to be displayed on this modal
+   * @property {MessageActionRow[]|MessageActionRowOptions[]} [components]
+   * Action rows containing interactive components for the modal (text input components)
+   */
+
+  /**
+   * @param {Modal|ModalOptions} data Modal to clone or raw data
+   * @param {Client} client The client constructing this Modal, if provided
+   */
+  constructor(data = {}, client = null) {
+    /**
+     * A list of MessageActionRows in the modal
+     * @type {MessageActionRow[]}
+     */
+    this.components = data.components?.map(c => BaseMessageComponent.create(c, client)) ?? [];
+
+    /**
+     * A unique string to be sent in the interaction when submitted
+     * @type {?string}
+     */
+    this.customId = data.custom_id ?? data.customId ?? null;
+
+    /**
+     * The title to be displayed on this modal
+     * @type {?string}
+     */
+    this.title = data.title ?? null;
+  }
+
+  /**
+   * Adds components to the modal.
+   * @param {...MessageActionRowResolvable[]} components The components to add
+   * @returns {Modal}
+   */
+  addComponents(...components) {
+    this.components.push(...components.flat(Infinity).map(c => BaseMessageComponent.create(c)));
+    return this;
+  }
+
+  /**
+   * Sets the components of the modal.
+   * @param {...MessageActionRowResolvable[]} components The components to set
+   * @returns {Modal}
+   */
+  setComponents(...components) {
+    this.spliceComponents(0, this.components.length, components);
+    return this;
+  }
+
+  /**
+   * Sets the custom id for this modal
+   * @param {string} customId A unique string to be sent in the interaction when submitted
+   * @returns {Modal}
+   */
+  setCustomId(customId) {
+    this.customId = Util.verifyString(customId, RangeError, 'MODAL_CUSTOM_ID');
+    return this;
+  }
+
+  /**
+   * Removes, replaces, and inserts components in the modal.
+   * @param {number} index The index to start at
+   * @param {number} deleteCount The number of components to remove
+   * @param {...MessageActionRowResolvable[]} [components] The replacing components
+   * @returns {Modal}
+   */
+  spliceComponents(index, deleteCount, ...components) {
+    this.components.splice(index, deleteCount, ...components.flat(Infinity).map(c => BaseMessageComponent.create(c)));
+    return this;
+  }
+
+  /**
+   * Sets the title of this modal
+   * @param {string} title The title to be displayed on this modal
+   * @returns {Modal}
+   */
+  setTitle(title) {
+    this.title = Util.verifyString(title, RangeError, 'MODAL_TITLE');
+    return this;
+  }
+
+  toJSON() {
+    return {
+      components: this.components.map(c => c.toJSON()),
+      custom_id: this.customId,
+      title: this.title,
+    };
+  }
+}
+
+module.exports = Modal;

src/structures/ModalSubmitFieldsResolver.js

@@ -0,0 +1,53 @@
+'use strict';
+
+const { TypeError } = require('../errors');
+const { MessageComponentTypes } = require('../util/Constants');
+
+/**
+ * A resolver for modal submit interaction text inputs.
+ */
+class ModalSubmitFieldsResolver {
+  constructor(components) {
+    /**
+     * The components within the modal
+     * @type {PartialModalActionRow[]} The components in the modal
+     */
+    this.components = components;
+  }
+
+  /**
+   * The extracted fields from the modal
+   * @type {PartialInputTextData[]} The fields in the modal
+   * @private
+   */
+  get _fields() {
+    return this.components.reduce((previous, next) => previous.concat(next.components), []);
+  }
+
+  /**
+   * Gets a field given a custom id from a component
+   * @param {string} customId The custom id of the component
+   * @returns {?PartialInputTextData}
+   */
+  getField(customId) {
+    const field = this._fields.find(f => f.customId === customId);
+    if (!field) throw new TypeError('MODAL_SUBMIT_INTERACTION_FIELD_NOT_FOUND', customId);
+    return field;
+  }
+
+  /**
+   * Gets the value of a text input component given a custom id
+   * @param {string} customId The custom id of the text input component
+   * @returns {?string}
+   */
+  getTextInputValue(customId) {
+    const field = this.getField(customId);
+    const expectedType = MessageComponentTypes[MessageComponentTypes.TEXT_INPUT];
+    if (field.type !== expectedType) {
+      throw new TypeError('MODAL_SUBMIT_INTERACTION_FIELD_TYPE', customId, field.type, expectedType);
+    }
+    return field.value;
+  }
+}
+
+module.exports = ModalSubmitFieldsResolver;

src/structures/ModalSubmitInteraction.js

@@ -0,0 +1,111 @@
+'use strict';
+
+const Interaction = require('./Interaction');
+const InteractionWebhook = require('./InteractionWebhook');
+const ModalSubmitFieldsResolver = require('./ModalSubmitFieldsResolver');
+const InteractionResponses = require('./interfaces/InteractionResponses');
+const { MessageComponentTypes } = require('../util/Constants');
+
+/**
+ * Represents a modal submit interaction.
+ * @extends {Interaction}
+ * @implements {InteractionResponses}
+ */
+class ModalSubmitInteraction extends Interaction {
+  constructor(client, data) {
+    super(client, data);
+
+    /**
+     * The custom id of the modal.
+     * @type {string}
+     */
+    this.customId = data.data.custom_id;
+
+    /**
+     * @typedef {Object} PartialTextInputData
+     * @property {string} [customId] A unique string to be sent in the interaction when submitted
+     * @property {MessageComponentType} [type] The type of this component
+     * @property {string} [value] Value of this text input component
+     */
+
+    /**
+     * @typedef {Object} PartialModalActionRow
+     * @property {MessageComponentType} [type] The type of this component
+     * @property {PartialTextInputData[]} [components] Partial text input components
+     */
+
+    /**
+     * The inputs within the modal
+     * @type {PartialModalActionRow[]}
+     */
+    this.components =
+      data.data.components?.map(c => ({
+        type: MessageComponentTypes[c.type],
+        components: ModalSubmitInteraction.transformComponent(c),
+      })) ?? [];
+
+    /**
+     * The message associated with this interaction
+     * @type {Message|APIMessage|null}
+     */
+    this.message = data.message ? this.channel?.messages._add(data.message) ?? data.message : null;
+
+    /**
+     * The fields within the modal
+     * @type {ModalSubmitFieldsResolver}
+     */
+    this.fields = new ModalSubmitFieldsResolver(this.components);
+
+    /**
+     * Whether the reply to this interaction has been deferred
+     * @type {boolean}
+     */
+    this.deferred = false;
+
+    /**
+     * Whether the reply to this interaction is ephemeral
+     * @type {?boolean}
+     */
+    this.ephemeral = null;
+
+    /**
+     * Whether this interaction has already been replied to
+     * @type {boolean}
+     */
+    this.replied = false;
+
+    /**
+     * An associated interaction webhook, can be used to further interact with this interaction
+     * @type {InteractionWebhook}
+     */
+    this.webhook = new InteractionWebhook(this.client, this.applicationId, this.token);
+  }
+
+  /**
+   * Transforms component data to discord.js-compatible data
+   * @param {*} rawComponent The data to transform
+   * @returns {PartialTextInputData[]}
+   */
+  static transformComponent(rawComponent) {
+    return rawComponent.components.map(c => ({
+      value: c.value,
+      type: MessageComponentTypes[c.type],
+      customId: c.custom_id,
+    }));
+  }
+
+  // These are here only for documentation purposes - they are implemented by InteractionResponses
+  /* eslint-disable no-empty-function */
+  deferReply() {}
+  reply() {}
+  fetchReply() {}
+  editReply() {}
+  deleteReply() {}
+  followUp() {}
+  update() {}
+  deferUpdate() {}
+}
+
+InteractionResponses.applyToClass(ModalSubmitInteraction, ['showModal', 'awaitModalSubmit']);
+
+module.exports = ModalSubmitInteraction;

src/structures/TextInputComponent.js

@@ -0,0 +1,201 @@
+'use strict';
+
+const BaseMessageComponent = require('./BaseMessageComponent');
+const { RangeError } = require('../errors');
+const { TextInputStyles, MessageComponentTypes } = require('../util/Constants');
+const Util = require('../util/Util');
+
+/**
+ * Represents a text input component in a modal
+ * @extends {BaseMessageComponent}
+ */
+
+class TextInputComponent extends BaseMessageComponent {
+  /**
+   * @typedef {BaseMessageComponentOptions} TextInputComponentOptions
+   * @property {string} [customId] A unique string to be sent in the interaction when submitted
+   * @property {string} [label] The text to be displayed above this text input component
+   * @property {number} [maxLength] Maximum length of text that can be entered
+   * @property {number} [minLength] Minimum length of text required to be entered
+   * @property {string} [placeholder] Custom placeholder text to display when no text is entered
+   * @property {boolean} [required] Whether or not this text input component is required
+   * @property {TextInputStyleResolvable} [style] The style of this text input component
+   * @property {string} [value] Value of this text input component
+   */
+
+  /**
+   * @param {TextInputComponent|TextInputComponentOptions} [data={}] TextInputComponent to clone or raw data
+   */
+  constructor(data = {}) {
+    super({ type: 'TEXT_INPUT' });
+
+    this.setup(data);
+  }
+
+  setup(data) {
+    /**
+     * A unique string to be sent in the interaction when submitted
+     * @type {?string}
+     */
+    this.customId = data.custom_id ?? data.customId ?? null;
+
+    /**
+     * The text to be displayed above this text input component
+     * @type {?string}
+     */
+    this.label = data.label ?? null;
+
+    /**
+     * Maximum length of text that can be entered
+     * @type {?number}
+     */
+    this.maxLength = data.max_length ?? data.maxLength ?? null;
+
+    /**
+     * Minimum length of text required to be entered
+     * @type {?string}
+     */
+    this.minLength = data.min_length ?? data.minLength ?? null;
+
+    /**
+     * Custom placeholder text to display when no text is entered
+     * @type {?string}
+     */
+    this.placeholder = data.placeholder ?? null;
+
+    /**
+     * Whether or not this text input component is required
+     * @type {?boolean}
+     */
+    this.required = data.required ?? false;
+
+    /**
+     * The style of this text input component
+     * @type {?TextInputStyle}
+     */
+    this.style = data.style ? TextInputComponent.resolveStyle(data.style) : null;
+
+    /**
+     * Value of this text input component
+     * @type {?string}
+     */
+    this.value = data.value ?? null;
+  }
+
+  /**
+   * Sets the custom id of this text input component
+   * @param {string} customId A unique string to be sent in the interaction when submitted
+   * @returns {TextInputComponent}
+   */
+  setCustomId(customId) {
+    this.customId = Util.verifyString(customId, RangeError, 'TEXT_INPUT_CUSTOM_ID');
+    return this;
+  }
+
+  /**
+   * Sets the label of this text input component
+   * @param {string} label The text to be displayed above this text input component
+   * @returns {TextInputComponent}
+   */
+  setLabel(label) {
+    this.label = Util.verifyString(label, RangeError, 'TEXT_INPUT_LABEL');
+    return this;
+  }
+
+  /**
+   * Sets the text input component to be required for modal submission
+   * @param {boolean} [required=true] Whether this text input component is required
+   * @returns {TextInputComponent}
+   */
+  setRequired(required = true) {
+    this.required = required;
+    return this;
+  }
+
+  /**
+   * Sets the maximum length of text input required in this text input component
+   * @param {number} maxLength Maximum length of text to be required
+   * @returns {TextInputComponent}
+   */
+  setMaxLength(maxLength) {
+    this.maxLength = maxLength;
+    return this;
+  }
+
+  /**
+   * Sets the minimum length of text input required in this text input component
+   * @param {number} minLength Minimum length of text to be required
+   * @returns {TextInputComponent}
+   */
+  setMinLength(minLength) {
+    this.minLength = minLength;
+    return this;
+  }
+
+  /**
+   * Sets the placeholder of this text input component
+   * @param {string} placeholder Custom placeholder text to display when no text is entered
+   * @returns {TextInputComponent}
+   */
+  setPlaceholder(placeholder) {
+    this.placeholder = Util.verifyString(placeholder, RangeError, 'TEXT_INPUT_PLACEHOLDER');
+    return this;
+  }
+
+  /**
+   * Sets the style of this text input component
+   * @param {TextInputStyleResolvable} style The style of this text input component
+   * @returns {TextInputComponent}
+   */
+  setStyle(style) {
+    this.style = TextInputComponent.resolveStyle(style);
+    return this;
+  }
+
+  /**
+   * Sets the value of this text input component
+   * @param {string} value Value of this text input component
+   * @returns {TextInputComponent}
+   */
+  setValue(value) {
+    this.value = Util.verifyString(value, RangeError, 'TEXT_INPUT_VALUE');
+    return this;
+  }
+
+  /**
+   * Transforms the text input component into a plain object
+   * @returns {APITextInput} The raw data of this text input component
+   */
+  toJSON() {
+    return {
+      custom_id: this.customId,
+      label: this.label,
+      max_length: this.maxLength,
+      min_length: this.minLength,
+      placeholder: this.placeholder,
+      required: this.required,
+      style: TextInputStyles[this.style],
+      type: MessageComponentTypes[this.type],
+      value: this.value,
+    };
+  }
+
+  /**
+   * Data that can be resolved to a TextInputStyle. This can be
+   * * TextInputStyle
+   * * number
+   * @typedef {number|TextInputStyle} TextInputStyleResolvable
+   */
+
+  /**
+   * Resolves the style of a text input component
+   * @param {TextInputStyleResolvable} style The style to resolve
+   * @returns {TextInputStyle}
+   * @private
+   */
+  static resolveStyle(style) {
+    return typeof style === 'string' ? style : TextInputStyles[style];
+  }
+}
+
+module.exports = TextInputComponent;

src/structures/interfaces/InteractionResponses.js

@@ -1,9 +1,11 @@
 'use strict';
 
 const { Error } = require('../../errors');
-const { InteractionResponseTypes } = require('../../util/Constants');
+const { InteractionResponseTypes, InteractionTypes } = require('../../util/Constants');
 const MessageFlags = require('../../util/MessageFlags');
+const InteractionCollector = require('../InteractionCollector');
 const MessagePayload = require('../MessagePayload');
+const Modal = require('../Modal');
 
 /**
  * Interface for classes that support shared interaction response types.
@@ -226,6 +228,56 @@ class InteractionResponses {
     return options.fetchReply ? this.fetchReply() : undefined;
   }
 
+  /**
+   * Shows a modal component
+   * @param {Modal|ModalOptions} modal The modal to show
+   * @returns {Promise<void>}
+   */
+  async showModal(modal) {
+    if (this.deferred || this.replied) throw new Error('INTERACTION_ALREADY_REPLIED');
+
+    const _modal = modal instanceof Modal ? modal : new Modal(modal);
+    await this.client.api.interactions(this.id, this.token).callback.post({
+      data: {
+        type: InteractionResponseTypes.MODAL,
+        data: _modal.toJSON(),
+      },
+    });
+    this.replied = true;
+  }
+
+  /**
+   * An object containing the same properties as CollectorOptions, but a few more:
+   * @typedef {Object} AwaitModalSubmitOptions
+   * @property {CollectorFilter} [filter] The filter applied to this collector
+   * @property {number} time Time to wait for an interaction before rejecting
+   */
+
+  /**
+   * Collects a single modal submit interaction that passes the filter.
+   * The Promise will reject if the time expires.
+   * @param {AwaitModalSubmitOptions} options Options to pass to the internal collector
+   * @returns {Promise<ModalSubmitInteraction>}
+   * @example
+   * // Collect a modal submit interaction
+   * const filter = (interaction) => interaction.customId === 'modal';
+   * interaction.awaitModalSubmit({ filter, time: 15_000 })
+   *   .then(interaction => console.log(`${interaction.customId} was submitted!`))
+   *   .catch(console.error);
+   */
+  awaitModalSubmit(options) {
+    if (typeof options.time !== 'number') throw new Error('INVALID_TYPE', 'time', 'number');
+    const _options = { ...options, max: 1, interactionType: InteractionTypes.MODAL_SUBMIT };
+    return new Promise((resolve, reject) => {
+      const collector = new InteractionCollector(this.client, _options);
+      collector.once('end', (interactions, reason) => {
+        const interaction = interactions.first();
+        if (interaction) resolve(interaction);
+        else reject(new Error('INTERACTION_COLLECTOR_ERROR', reason));
+      });
+    });
+  }
+
   static applyToClass(structure, ignore = []) {
     const props = [
       'deferReply',
@@ -236,6 +288,8 @@ class InteractionResponses {
       'followUp',
       'deferUpdate',
       'update',
+      'showModal',
+      'awaitModalSubmit',
     ];
 
     for (const prop of props) {

src/util/Constants.js

@@ -1076,6 +1076,7 @@ exports.InteractionTypes = createEnum([
   'APPLICATION_COMMAND',
   'MESSAGE_COMPONENT',
   'APPLICATION_COMMAND_AUTOCOMPLETE',
+  'MODAL_SUBMIT',
 ]);
 
 /**
@@ -1099,6 +1100,7 @@ exports.InteractionResponseTypes = createEnum([
   'DEFERRED_MESSAGE_UPDATE',
   'UPDATE_MESSAGE',
   'APPLICATION_COMMAND_AUTOCOMPLETE_RESULT',
+  'MODAL',
 ]);
 
 /**
@@ -1109,7 +1111,7 @@ exports.InteractionResponseTypes = createEnum([
  * @typedef {string} MessageComponentType
  * @see {@link https://discord.com/developers/docs/interactions/message-components#component-object-component-types}
  */
-exports.MessageComponentTypes = createEnum([null, 'ACTION_ROW', 'BUTTON', 'SELECT_MENU']);
+exports.MessageComponentTypes = createEnum([null, 'ACTION_ROW', 'BUTTON', 'SELECT_MENU', 'TEXT_INPUT']);
 
 /**
  * The style of a message button
@@ -1152,6 +1154,15 @@ exports.NSFWLevels = createEnum(['DEFAULT', 'EXPLICIT', 'SAFE', 'AGE_RESTRICTED'
  */
 exports.PrivacyLevels = createEnum([null, 'PUBLIC', 'GUILD_ONLY']);
 
+/**
+ * The style of a text input component
+ * * SHORT
+ * * PARAGRAPH
+ * @typedef {string} TextInputStyle
+ * @see {@link https://discord.com/developers/docs/interactions/message-components#text-inputs-text-input-styles}
+ */
+exports.TextInputStyles = createEnum([null, 'SHORT', 'PARAGRAPH']);
+
 /**
  * Privacy level of a {@link GuildScheduledEvent} object:
  * * GUILD_ONLY