Forgot to add

src/server/service/slack-command-handler/togetter.js

@@ -0,0 +1,68 @@
+const { BlockKitBuilder: B } = require('@growi/slack');
+
+module.exports = () => {
+  const BaseSlackCommandHandler = require('./slack-command-handler');
+  const handler = new BaseSlackCommandHandler();
+
+  handler.handleCommand = async function(client, body, args, limit = 10) {
+    // TODO GW-6721 Get the time from args
+    const reusult = await client.conversations.history({
+      channel: body.channel_id,
+      limit,
+    });
+    console.log(reusult);
+    // Checkbox Message を返す
+    client.chat.postEphemeral({
+      channel: body.channel_id,
+      user: body.user_id,
+      text: 'Select messages to use.',
+      blocks: this.togetterMessageBlocks(),
+    });
+    return;
+  };
+
+  handler.togetterMessageBlocks = function() {
+    return [
+      B.inputBlock(this.togetterCheckboxesElement(), 'selected_messages', 'Select massages to use.'),
+      B.actionsBlock(B.buttonElement('Show more', 'togetterShowMore')),
+      B.inputBlock(this.togetterInputBlockElement('page_path', '/'), 'page_path', 'Page path'),
+      B.actionsBlock(B.buttonElement('Cancel', 'togetterCancelPageCreation'), B.buttonElement('Create page', 'togetterCreatePage', 'primary')),
+    ];
+  };
+
+  handler.togetterCheckboxesElement = function() {
+    return {
+      type: 'checkboxes',
+      options: this.togetterCheckboxesElementOptions(),
+      action_id: 'checkboxes_changed',
+    };
+  };
+
+  handler.togetterCheckboxesElementOptions = function() {
+    // options を conversations.history の結果でインクリメント
+    const options = [];
+    // 仮置き
+    for (let i = 0; i < 10; i++) {
+      const option = B.checkboxesElementOption('*username*  12:00PM', 'sample slack messages ... :star:', `selected-${i}`);
+      options.push(option);
+    }
+    return options;
+  };
+
+  /**
+   * Plain-text input element
+   * https://api.slack.com/reference/block-kit/block-elements#input
+   */
+  handler.togetterInputBlockElement = function(actionId, placeholderText = 'Write something ...') {
+    return {
+      type: 'plain_text_input',
+      placeholder: {
+        type: 'plain_text',
+        text: placeholderText,
+      },
+      action_id: actionId,
+    };
+  };
+
+  return handler;
+};