Add a couple of message properties

This is a breaking change, introducing a new Channel class to hold the
channel meta information, and functions to open either the last
DailyArchive, or one for a specified date.

README.md

@@ -1,22 +1,40 @@
-[![Release](https://img.shields.io/npm/v/remotestorage-module-chat-messages.svg?style=flat)](https://github.com/67P/remotestorage-module-chat-messages/releases)
+[![Release](https://img.shields.io/npm/v/remotestorage-module-chat-messages.svg?style=flat)](https://www.npmjs.com/package/remotestorage-module-chat-messages)
 
 # remoteStorage Module: Chat Messages
 
 Stores chat messages in daily archive documents.
 
-Please feel free to open GitHub issues for questions, feature requests,
-protocol proposals, and whatever else you like.
+## Usage
 
-## Protocols
+Open a daily archive and write messages to it:
 
-### Currently supported
+```js
+const RemoteStorage = require("remotestoragejs");
+const ChatMessages  = require("remotestorage-module-chat-messages");
+const remoteStorage = new RemoteStorage({ modules: [ ChatMessages ] });
 
-* IRC
-* XMPP
+const archive = new remoteStorage.chatMessages.DailyArchive({
+  service: {
+    protocol: 'IRC',
+    domain: 'irc.libera.chat'
+  },
+  channelName: '#kosmos',
+  date: new Date(),
+  isPublic: true // Channel logs will be written to public folder
+});
 
-### Planned
+const messages = [
+  { "date": "2015-06-05T17:35:28.454Z", "user": "jimmy", "text": "knock knock" },
+  { "date": "2015-06-05T17:36:05.123Z", "user": "walter", "text": "who's there?" }
+];
 
-* Mattermost
-* Matrix
-* Slack
-* ...
+archive.addMessages(messages);
+```
+
+See the inline source code documentation (JSDoc) for usage details and function
+arguments. For a real-world integration example, see
+[hubot-remotestorage-logger](https://github.com/67P/hubot-remotestorage-logger/).
+
+## Support, bugs, feedback, questions
+
+Come and chat with us: https://wiki.kosmos.org/Main_Page#Chat

dist/build.js

@@ -1 +1,2 @@
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index.js

@@ -1,573 +0,0 @@
-var RemoteStorage = require('remotestoragejs');
-
-RemoteStorage.defineModule("chat-messages", function (privateClient, publicClient) {
-
-  /**
-   * Schema: chat-messages/daily
-   *
-   * Represents one day of chat messages
-   *
-   * Example:
-   *
-   * (start code)
-   * {
-   *   "@context": "https://kosmos.org/ns/v1",
-   *   "@id": "chat-messages/freenode/channels/kosmos/",
-   *   "@type": "ChatChannel",
-   *   "name": "#kosmos",
-   *   "ircURI": "irc://irc.freenode.net/kosmos",
-   *   "today":  {
-   *     "@id": "2015/01/01",
-   *     "@type": "ChatLog",
-   *     "messageType": "InstantMessage",
-   *     "previous": "2014/12/31",
-   *     "next": "2015/01/02",
-   *     "messages": [
-   *       { "date": "2015-06-05T17:35:28.454Z", "user": "hal8000", "text": "knock knock" },
-   *       { "date": "2015-06-05T17:37:42.123Z", "user": "raucao", "text": "who's there?" },
-   *       { "date": "2015-06-05T17:55:01.235Z", "user": "hal8000", "text": "HAL" }
-   *     ]
-   *   }
-   * }
-   * (end code)
-   */
-
-  const archiveSchema = {
-    "type": "object",
-    "properties": {
-      "@context": {
-        "type": "string",
-        "default": "https://kosmos.org/ns/v1",
-        "enum": ["https://kosmos.org/ns/v1"]
-      },
-      "@id": {
-        "type": "string",
-        "required": true
-      },
-      "@type": {
-        "type": "string",
-        "default": "ChatChannel",
-        "enum": ["ChatChannel"]
-      },
-      "name": {
-        "type": "string",
-        "required": true
-      },
-      "ircURI": {
-        "type": "string",
-        "format": "uri"
-      },
-      "xmppURI": {
-        "type": "string",
-        "format": "uri"
-      },
-      "today": {
-        "type": "object",
-        "properties": {
-          "@id": {
-            "type": "string",
-            "pattern": "^[0-9]{4}\/[0-9]{2}\/[0-9]{2}$",
-            "required": true
-          },
-          "@type": {
-            "type": "string",
-            "default": "ChatLog",
-            "pattern": "^ChatLog$"
-          },
-          "messageType": {
-            "type": "string",
-            "default": "InstantMessage",
-            "pattern": "^InstantMessage$"
-          },
-          "previous": {
-            "type": "string",
-            "pattern": "^[0-9]{4}\/[0-9]{2}\/[0-9]{2}$"
-          },
-          "next": {
-            "type": "string",
-            "pattern": "^[0-9]{4}\/[0-9]{2}\/[0-9]{2}$"
-          },
-          "messages": {
-            "type": "array",
-            "required": true,
-            "items": {
-              "type": "object",
-              "properties": {
-                "date": {
-                  "type": "string",
-                  "format": "date-time"
-                },
-                "user": {
-                  "type": "string"
-                },
-                "text": {
-                  "type": "string"
-                },
-                "type": "string",
-                "default": "text",
-                "enum": [
-                  "text",
-                  "join",
-                  "leave",
-                  "action"
-                ]
-              }
-            }
-          }
-        }
-      }
-    },
-    "required": []
-  };
-
-  privateClient.declareType("daily-archive", "https://kosmos.org/ns/v1", archiveSchema);
-  publicClient.declareType("daily-archive", "https://kosmos.org/ns/v1", archiveSchema);
-
-  /**
-   * Class: DailyArchive
-   *
-   * A daily archive stores IRC messages by day.
-   *
-   * Parameters (object):
-   *   server      - Chat server info (see <DailyArchive.server>)
-   *   channelName - Name of room/channel
-   *   date        - Date of archive day
-   *   isPublic    - Store logs in public folder (defaults to false)
-   *   previous    - Date of previous log file as YYYY/MM/DD;
-   *                 looked up automatically when not given
-   *   next        - Date of next log file as YYYY/MM/DD;
-   *                 looked up automatically when not given
-   *
-   * Example for IRC:
-   *
-   * (start code)
-   * var archive = new chatMessages.DailyArchive({
-   *   server: {
-   *     type: 'irc',
-   *     name: 'freenode',
-   *     ircURI: 'irc://irc.freenode.net'
-   *   },
-   *   channelName: '#kosmos',
-   *   date: new Date(),
-   *   isPublic: true
-   * });
-   * (end code)
-   *
-   * Example for XMPP:
-   *
-   * (start code)
-   * var archive = new chatMessages.DailyArchive({
-   *   server: {
-   *     type: 'xmpp',
-   *     name: '5apps',
-   *     xmppMUC: 'muc.5apps.com'
-   *   },
-   *   channelName: 'watercooler',
-   *   date: new Date(),
-   *   isPublic: false
-   * });
-   * (end code)
-   */
-  var DailyArchive = function DailyArchive(options) {
-    //
-    // Defaults
-    //
-    options.isPublic = options.isPublic || false;
-
-    //
-    // Validate options
-    //
-    if (typeof options !== "object") {
-      throw "options must be an object";
-    }
-    if (typeof options.server !== "object" ||
-        typeof options.server.type !== "string" ||
-        typeof options.server.name !== "string") {
-      throw "server must be an object containing at least server \"type\" and \"name\"";
-    }
-    if (typeof options.channelName !== "string") {
-      throw "channelName must be a string";
-    }
-    if (!(options.date instanceof Date)) {
-      throw "date must be a date object";
-    }
-    if (typeof options.isPublic !== "boolean") {
-      throw "isPublic must be a boolean value";
-    }
-
-    /**
-     * Property: server
-     *
-     * Contains information about the chat server/network
-     *
-     * Properties:
-     *   type - Type of server/protocol (e.g. "irc", "xmpp", "campfire", "slack")
-     *   name - Shortname/id/alias of network/server (e.g. "freenode", "mycompanyname")
-     *   ircURI - (optional) IRC URI of network (e.g. "irc://irc.freenode.net/")
-     *   xmppMUC - (optional) XMPP MUC service host (e.g. "conference.jabber.org")
-     */
-    this.server = options.server;
-
-    /**
-     * Property: channelName
-     *
-     * Name of the IRC channel (e.g. "#kosmos")
-     */
-    this.channelName = options.channelName;
-
-    /**
-     * Property: date
-     *
-     * Date of the archive's content
-     */
-    this.date = options.date;
-
-    /**
-     * Property: isPublic
-     *
-     * `true` for public archives, `false` for private ones
-     */
-    this.isPublic = options.isPublic;
-
-    /**
-     * Property: parsedDate
-     *
-     * Object containing padded year, month and day of date
-     */
-    this.parsedDate = parseDate(this.date);
-
-    /**
-     * Property: dateId
-     *
-     * Date string in the form of YYYY/MM/DD
-     */
-    this.dateId = this.parsedDate.year+'/'+this.parsedDate.month+'/'+this.parsedDate.day;
-
-    /**
-     * Property: path
-     *
-     * Document path of the archive file
-     */
-    switch (this.server.type) {
-      case 'irc':
-        if (this.channelName.match(/^#/)) {
-          // normal chatroom
-          var channelName = this.channelName.replace(/^#/,'');
-          this.path = `${this.server.name}/channels/${channelName}/${this.dateId}`;
-        } else {
-          // user direct message
-          this.path = `${this.server.name}/users/${this.channelName}/${this.dateId}`;
-        }
-        break;
-      default:
-        this.path = `${this.server.name}/${this.channelName}/${this.dateId}`;
-        break;
-    }
-
-    /**
-     * Property: client
-     *
-     * Public or private BaseClient, depending on isPublic
-     */
-    this.client = this.isPublic ? publicClient : privateClient;
-
-    /**
-     * Property: previous
-     *
-     * Date of previous log file as YYYY/MM/DD
-     */
-    this.previous = options.previous;
-
-    /**
-     * Property: next
-     *
-     * Date of next log file as YYYY/MM/DD
-     */
-    this.next = options.next;
-  };
-
-  DailyArchive.prototype = {
-    /*
-     * Method: addMessage
-     *
-     * Parameters (object):
-     *   timestamp - Timestamp of the message
-     *   from      - The sender of the message
-     *   text      - The message itself
-     *   type      - Type of message (one of text, join, leave, action)
-     */
-    addMessage: function addMessage(message) {
-      if (this.isPublic && !this.channelName.match(/^#/)) {
-        return Promise.resolve(false);
-      }
-
-      message.type = message.type || 'text';
-
-      return this.client.getObject(this.path).then((archive) => {
-        if (typeof archive === 'object') {
-          return this._updateDocument(archive, message);
-        } else {
-          return this._createDocument(message);
-        }
-      });
-    },
-
-    /*
-     * Method: addMessages
-     *
-     * Like <addMessage>, but for multiple messages at once. Useful for bulk
-     * imports of messages.
-     *
-     * Parameters:
-     *   messages   - Array of message objects (see params for addMessage)
-     *   overwrite  - If true, creates a new archive file and overwrites the
-     *                old one. Defaults to false.
-     */
-    addMessages: function addMessage(messages, overwrite) {
-      if (this.isPublic && !this.channelName.match(/^#/)) {
-        return Promise.resolve(false);
-      }
-
-      overwrite = overwrite || false;
-
-      messages.forEach(function(message) {
-        message.type = message.type || 'text';
-      });
-
-      if (overwrite) {
-        return this._createDocument(messages);
-      } else {
-        return this.client.getObject(this.path).then((archive) => {
-          if (typeof archive === 'object') {
-            return this._updateDocument(archive, messages);
-          } else {
-            return this._createDocument(messages);
-          }
-        });
-      }
-    },
-
-    /*
-     * Method: remove
-     *
-     * Deletes the entire archive document from storage
-     */
-    remove: function() {
-      return this.client.remove(this.path);
-    },
-
-    /*
-     * Method: _updateDocument
-     *
-     * Updates and writes an existing archive document
-     */
-    _updateDocument: function(archive, messages) {
-      RemoteStorage.log('[chat-messages] Updating archive document', archive);
-
-      if (Array.isArray(messages)) {
-        messages.forEach(function(message) {
-          archive.today.messages.push(message);
-        });
-      } else {
-        archive.today.messages.push(messages);
-      }
-
-      return this._sync(archive);
-    },
-
-    /*
-     * Method: _createDocument
-     *
-     * Creates and writes a new archive document
-     */
-    _createDocument: function(messages) {
-      RemoteStorage.log('[chat-messages] Creating new archive document');
-      let archive = this._buildArchiveObject();
-
-      if (Array.isArray(messages)) {
-        messages.forEach((message) => {
-          archive.today.messages.push(message);
-        });
-      } else {
-        archive.today.messages.push(messages);
-      }
-
-      if (this.previous || this.next) {
-        // The app is handling previous/next keys itself
-        // That includes setting 'next' in the previous log file
-        if (this.previous) { archive.today.previous = this.previous; }
-        if (this.next)     { archive.today.next = this.next; }
-        return this._sync(archive);
-      } else {
-        // Find and update previous archive, set 'previous' on this one
-        return this._updatePreviousArchive().then((previous) => {
-          if (typeof previous === 'object') {
-            archive.today.previous = previous.today['@id'];
-          }
-          return this._sync(archive);
-        });
-      }
-    },
-
-    /*
-     * Method: _buildArchiveObject
-     *
-     * Builds the object to be stored in remote storage
-     */
-    _buildArchiveObject: function() {
-      let roomName = this.channelName.replace(/#/,'');
-
-      let archive = {
-        "@id": "chat-messages/"+this.server.name+"/channels/"+roomName+"/",
-        "@type": "ChatChannel",
-        "name": this.channelName,
-        "today": {
-          "@id": this.dateId,
-          "@type": "ChatLog",
-          "messageType": "InstantMessage",
-          "messages": []
-        }
-      };
-
-      switch (this.server.type) {
-        case 'irc':
-          if (!this.channelName.match(/^#/)) {
-            archive["@id"] = "chat-messages/"+this.server.name+"/users/"+this.channelName+"/";
-          }
-          archive["ircURI"] = this.server.ircURI+"/"+roomName;
-          break;
-        case 'xmpp':
-          archive["xmppURI"] = `xmpp:${this.channelName}@${this.server.xmppMUC}`;
-          break;
-      }
-
-      return archive;
-    },
-
-    /*
-     * Method: _updatePreviousArchive
-     *
-     * Finds the previous archive document and updates its today.next value
-     */
-    _updatePreviousArchive: function() {
-      return this._findPreviousArchive().then((archive) => {
-        if (typeof archive === 'object' && archive.today) {
-          archive.today.next = this.dateId;
-          let path = this.path.substring(0, this.path.length-this.dateId.length)+archive.today['@id'];
-
-          return this.client.storeObject('daily-archive', path, archive).then(() => {
-            RemoteStorage.log('[chat-messages] Previous archive written to remote storage', path, archive);
-            return archive;
-          });
-        } else {
-          RemoteStorage.log('[chat-messages] Previous archive not found');
-          return false;
-        }
-      });
-    },
-
-    /*
-     * Method: _findPreviousArchive
-     *
-     * Returns the previous archive document
-     */
-    _findPreviousArchive: function() {
-      const monthPath = this.path.substring(0, this.path.length-2);
-      const yearPath = this.path.substring(0, this.path.length-5);
-      const basePath = this.path.substring(0, this.path.length-10);
-
-      return this.client.getListing(monthPath).then((listing) => {
-        let days = Object.keys(listing).map((i) => parseInt(i)).map((i) => {
-          return (i < parseInt(this.parsedDate.day)) ? i : null;
-        }).filter(function(i){ return i != null;  });
-
-        if (days.length > 0) {
-          let day = pad(Math.max(...days).toString());
-          return this.client.getObject(monthPath+day);
-        }
-
-        // Find last day in previous month
-        return this.client.getListing(yearPath).then((listing) => {
-          let months = Object.keys(listing).map((i) => parseInt(i.substr(0,2))).map((i) => {
-            return (i < parseInt(this.parsedDate.month)) ? i : null;
-          }).filter(function(i){ return i != null; });
-
-          if (months.length > 0) {
-            let month = pad(Math.max(...months).toString());
-
-            return this.client.getListing(yearPath+month+'/').then((listing) => {
-              let days = Object.keys(listing).map((i) => parseInt(i));
-              let day = pad(Math.max(...days).toString());
-              return this.client.getObject(yearPath+month+'/'+day);
-            });
-          } else {
-            // Find last month and day in previous year
-            return this.client.getListing(basePath).then((listing) => {
-
-              let years = Object.keys(listing).map((i) => parseInt(i.substr(0,4))).map((i) => {
-                return (i < parseInt(this.parsedDate.year)) ? i : null;
-              }).filter(function(i){ return i != null; });
-
-              if (years.length > 0) {
-                let year = Math.max(...years).toString();
-
-                return this.client.getListing(basePath+year+'/').then((listing) => {
-                  let months = Object.keys(listing).map((i) => parseInt(i.substr(0,2)));
-                  let month = pad(Math.max(...months).toString());
-
-                  return this.client.getListing(basePath+year+'/'+month+'/').then((listing) => {
-                    let days = Object.keys(listing).map((i) => parseInt(i));
-                    let day = pad(Math.max(...days).toString());
-                    return this.client.getObject(basePath+year+'/'+month+'/'+day);
-                  });
-                });
-              } else {
-                return false;
-              }
-            });
-          }
-        });
-      });
-    },
-
-    /*
-     * Method: _sync
-     *
-     * Write archive document
-     */
-    _sync: function(obj) {
-      RemoteStorage.log('[chat-messages] Writing archive object', obj);
-
-      return this.client.storeObject('daily-archive', this.path, obj).then(function(){
-        RemoteStorage.log('[chat-messages] Archive written to remote storage');
-        return true;
-      },function(error){
-        console.log('[chat-messages] Error trying to store object', error);
-        return error;
-      });
-    }
-  };
-
-  var pad = function(num) {
-    num = String(num);
-    if (num.length === 1) { num = "0" + num; }
-    return num;
-  };
-
-  var parseDate = function(date) {
-    return {
-      year:  date.getUTCFullYear(),
-      month: pad( date.getUTCMonth() + 1 ),
-      day:   pad( date.getUTCDate() )
-    };
-  };
-
-  var exports = {
-    DailyArchive: DailyArchive,
-    privateClient: privateClient,
-    publicClient: publicClient
-  };
-
-  // Return public functions
-  return { exports: exports };
-});

package.json

@@ -1,26 +1,28 @@
 {
   "name": "remotestorage-module-chat-messages",
-  "version": "0.8.0",
+  "version": "2.1.0",
   "description": "Stores chat messages in daily archive files",
   "main": "./dist/build.js",
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1",
+    "build": "NODE_ENV=production webpack",
     "dev": "webpack -w",
-    "build": "NODE_ENV=production webpack"
+    "start": "npm run dev",
+    "test": "echo \"Error: no test specified\" && exit 1",
+    "version": "npm run build && git add dist/"
   },
-  "author": "Kosmos Developers <mail@kosmos.org> (https://kosmos.org)",
-  "contributors": [
-    "Sebastian Kippe <sebastian@kip.pe>"
-  ],
+  "author": "Kosmos Contributors <mail@kosmos.org> (https://kosmos.org)",
   "license": "MIT",
+  "homepage": "https://gitea.kosmos.org/kosmos/rs-module-chat-messages",
   "repository": {
     "type": "git",
-    "url": "https://github.com/67P/remotestorage-module-chat-messages.git"
+    "url": "https://gitea.kosmos.org/kosmos/rs-module-chat-messages.git"
   },
   "devDependencies": {
-    "babel-core": "^6.18.2",
-    "babel-loader": "^6.2.7",
-    "babel-preset-es2015": "^6.18.0",
-    "webpack": "^1.13.2"
+    "@babel/core": "^7.14.8",
+    "@babel/preset-env": "^7.14.9",
+    "babel-loader": "^8.2.2",
+    "webpack": "^5.48.0",
+    "webpack-cli": "^4.8.0",
+    "regenerator-runtime": "^0.13.9"
   }
 }

src/chat-messages.js

@@ -0,0 +1,784 @@
+import 'regenerator-runtime/runtime';
+
+function pad (num) {
+  num = String(num);
+  if (num.length === 1) { num = "0" + num; }
+  return num;
+};
+
+function parseDate (date) {
+  return {
+    year:  date.getUTCFullYear(),
+    month: pad( date.getUTCMonth() + 1 ),
+    day:   pad( date.getUTCDate() )
+  };
+};
+
+function lowestNumberInListing(items) {
+  const sortedNumbers = Object.keys(items)
+                              .map(i => parseInt(i))
+                              .filter(i => !Number.isNaN(i))
+                              .sort();
+  return sortedNumbers[0];
+}
+
+const ChatMessages = function (privateClient, publicClient) {
+  /**
+   * Schema: chat-messages/daily-archive
+   *
+   * Represents one calendar day of chat messages
+   *
+   * @example
+   * {
+   *   "@context": "https://kosmos.org/ns/v2",
+   *   "@id": "chat-messages/irc.libera.chat/channels/kosmos/",
+   *   "@type": "ChatChannel",
+   *   "service": {
+   *     "domain": "irc.libera.chat",
+   *     "protocol": "IRC",
+   *   },
+   *   "name": "#kosmos",
+   *   "type": "room",
+   *   "today": {
+   *     "@id": "2015/01/01",
+   *     "@type": "ChatLog",
+   *     "messageType": "InstantMessage",
+   *     "previous": "2014/12/31",
+   *     "next": "2015/01/02",
+   *     "messages": [
+   *       { "date": "2015-06-05T17:35:28.454Z", "user": "hal8000", "text": "knock knock" },
+   *       { "date": "2015-06-05T17:37:42.123Z", "user": "raucao", "text": "who's there?" },
+   *       { "date": "2015-06-05T17:55:01.235Z", "user": "hal8000", "text": "HAL" }
+   *     ]
+   *   }
+   * }
+   */
+  const archiveSchema = {
+    "type": "object",
+    "properties": {
+      "@context": {
+        "type": "string",
+        "default": "https://kosmos.org/ns/v2/chat-channel"
+      },
+      "@id": {
+        "type": "string",
+        "required": true
+      },
+      "@type": {
+        "type": "string",
+        "default": "ChatChannel",
+        "enum": ["ChatChannel"]
+      },
+      "service": {
+        "type": "object",
+        "properties": {
+          "domain": {
+            "type": "string",
+            "required": true
+          },
+          "protocol": {
+            "type": "string",
+            "required": true
+          }
+        }
+      },
+      "name": {
+        "type": "string",
+        "required": true
+      },
+      "type": {
+        "type": "string",
+        "required": true,
+        "enum": [ "room", "person" ]
+      },
+      "today": {
+        "type": "object",
+        "properties": {
+          "@id": {
+            "type": "string",
+            "pattern": "^[0-9]{4}\/[0-9]{2}\/[0-9]{2}$",
+            "required": true
+          },
+          "@type": {
+            "type": "string",
+            "default": "ChatLog",
+            "pattern": "^ChatLog$"
+          },
+          "messageType": {
+            "type": "string",
+            "default": "InstantMessage",
+            "pattern": "^InstantMessage$"
+          },
+          "previous": {
+            "type": "string",
+            "pattern": "^[0-9]{4}\/[0-9]{2}\/[0-9]{2}$"
+          },
+          "next": {
+            "type": "string",
+            "pattern": "^[0-9]{4}\/[0-9]{2}\/[0-9]{2}$"
+          },
+          "messages": {
+            "type": "array",
+            "required": true,
+            "items": {
+              "type": "object",
+              "properties": {
+                "date": {
+                  "type": "string",
+                  "format": "date-time"
+                },
+                "user": {
+                  "type": "string"
+                },
+                "text": {
+                  "type": "string"
+                },
+                "type": "string",
+                "default": "text",
+                "enum": [
+                  "text",
+                  "join",
+                  "leave",
+                  "action"
+                ]
+              }
+            }
+          }
+        }
+      }
+    },
+    "required": []
+  };
+
+  privateClient.declareType("daily-archive", "https://kosmos.org/ns/v2/chat-channel", archiveSchema);
+  publicClient.declareType("daily-archive", "https://kosmos.org/ns/v2/chat-channel", archiveSchema);
+
+  /**
+   * Schema: chat-messages/daily-archive-meta
+   *
+   * Stores meta information about the daily archives
+   *
+   * @example
+   * {
+   *   "@context": "https://kosmos.org/ns/v2",
+   *   "@id": "chat-messages/irc.libera.chat/channels/kosmos/meta",
+   *   "@type": "ChatChannelMeta",
+   *   "first": "2009/01/03",
+   *   "last": "2021/11/05"
+   *   }
+   * }
+   */
+  const archiveMetaSchema = {
+    "type": "object",
+    "properties": {
+      "@context": {
+        "type": "string",
+        "default": "https://kosmos.org/ns/v2/chat-channel-meta"
+      },
+      "@id": {
+        "type": "string",
+      },
+      "@type": {
+        "type": "string",
+        "default": "ChatChannelMeta",
+        "enum": ["ChatChannelMeta"]
+      },
+      "first": {
+        "type": "string",
+        "pattern": "^[0-9]{4}\/[0-9]{2}\/[0-9]{2}$"
+      },
+      "last": {
+        "type": "string",
+        "pattern": "^[0-9]{4}\/[0-9]{2}\/[0-9]{2}$"
+      }
+    },
+    "required": ["@id", "first", "last"]
+  };
+
+  privateClient.declareType("daily-archive-meta", "https://kosmos.org/ns/v2/chat-channel-meta", archiveMetaSchema);
+  publicClient.declareType("daily-archive-meta", "https://kosmos.org/ns/v2/chat-channel-meta", archiveMetaSchema);
+
+  /**
+   * A chat channel
+   *
+   * @class
+   */
+  class Channel {
+    /**
+     * @param {object} options
+     * @param {object} options.service
+     * @param {string} options.service.protocol - Type of chat service/protocol (e.g. "IRC", "XMPP", "Campfire", "Slack")
+     * @param {string} options.service.domain   - Domain of the chat service (e.g. "irc.libera.chat", "kosmos.chat")
+     * @param {string} options.name             - Name of room/channel (e.g. "#kosmos")
+     * @param {string} [options.type]           - Type of channel ("room" or "person")
+     *
+     * @example
+     * // IRC channel:
+     * const channel = new remoteStorage.chatMessages.Channel({
+     *   service: {
+     *     protocol: 'IRC',
+     *     domain: 'irc.libera.chat',
+     *   },
+     *   name: '#kosmos-dev',
+     *   type: 'room'
+     * });
+     *
+     * // XMPP channel:
+     * const channel = new remoteStorage.chatMessages.Channel({
+     *   service: {
+     *     protocol: 'XMPP',
+     *     domain: 'kosmos.chat',
+     *   },
+     *   name: 'kosmos-dev',
+     *   type: 'room'
+     * });
+     */
+    constructor (options) {
+      //
+      // Defaults
+      //
+      options.type = options.type || "room";
+
+      //
+      // Validate options
+      //
+      if (typeof options !== "object") {
+        throw "options must be an object";
+      }
+      if (typeof options.service !== "object" ||
+          typeof options.service.protocol !== "string" ||
+          typeof options.service.domain !== "string") {
+        throw "options.service must be an object containing at least service \"protocol\" and \"domain\"";
+      }
+      if (typeof options.name !== "string") {
+        throw "options.name must be a string";
+      }
+
+      /**
+       * @property {object} service
+       * @property {string} service.protocol - Type of chat service/protocol (e.g. "IRC", "XMPP", "campfire", "slack")
+       * @property {string} service.domain   - Domain of the chat service (e.g. "irc.libera.chat", "kosmos.chat")
+       */
+      this.service = options.service;
+
+      /**
+       * @property {string} name - Name of channel (e.g. "#kosmos")
+       */
+      this.name = options.name;
+
+      /**
+       * @property {string} type - Type of channel ("room" or "person")
+       */
+      this.type = options.type;
+
+      /**
+       * @property {string} path - Base directory path of the channel archives
+       */
+      if (this.type === "room") {
+        // Normal chatroom
+        const name = this.name.replace(/#/,'');
+        this.path = `${this.service.domain}/channels/${name}`;
+      } else {
+        // User direct messages
+        this.path = `${this.service.domain}/users/${this.name}`;
+      }
+
+      /**
+       * @property {string} metaPath - Path of the channel's metadata document
+       */
+      this.metaPath = `${this.path}/meta`;
+    }
+
+    /*
+     * Returns the last stored DailyArchive, or a new one for the current day.
+     *
+     * @param {object} options
+     * @param {boolean} [options.public] - Public or private archive. Defaults to 'false'.
+     *
+     * @returns {Promise}
+     */
+    async openLastDailyArchive (options={}) {
+      const client = options.public ? publicClient : privateClient;
+      const meta = await client.getObject(this.metaPath);
+
+      if (meta && meta.last) {
+        return new DailyArchive({
+          channel: this,
+          date: new Date(meta.last.replace(/\//g,'-')),
+          isPublic: options.public
+        });
+      } else {
+        return new DailyArchive({
+          channel: this,
+          date: new Date(),
+          isPublic: options.public
+        });
+      }
+    }
+
+    /*
+     * Returns a DailyArchive for the given date
+     *
+     * @param {object} options
+     * @param {date} options.date        - Date of archive day
+     * @param {boolean} [options.public] - Public or private archive. Defaults to 'false'.
+     *
+     * @returns {Promise}
+     */
+    openDailyArchive (options={}) {
+      if (!(options.date instanceof Date)) {
+        throw 'options.date must be a date object';
+      }
+
+      return new DailyArchive({
+        channel: this,
+        date: options.date,
+        isPublic: options.public
+      });
+    }
+  }
+
+  /**
+   * A daily archive stores chat messages by calendar day.
+   *
+   * @class
+   */
+  class DailyArchive {
+    /**
+     * @param {object} options
+     * @param {string} options.channel     - A Channel instance
+     * @param {date} options.date          - Date of archive day
+     * @param {boolean} [options.isPublic] - Store logs in public folder (defaults to false)
+     * @param {string} [options.previous]  - Date of previous log file as `YYYY/MM/DD`. Looked up automatically when not given
+     * @param {string} [options.next]      - Date of next log file as `YYYY/MM/DD`. Looked up automatically when not given
+     *
+     * @example
+     * const channel = new remoteStorage.chatMessages.Channel({ ...options })
+     * const archive = new chatMessages.DailyArchive({
+     *   channel: channel,
+     *   date: new Date(),
+     *   isPublic: true
+     * });
+     */
+    constructor (options) {
+      //
+      // Defaults
+      //
+      options.isPublic = options.isPublic || false;
+
+      //
+      // Validate options
+      //
+      if (typeof options !== "object") {
+        throw "options must be an object";
+      }
+      if (!(options.channel instanceof Channel)) {
+        throw "options.channel must be a Channel object";
+      }
+      if (!(options.date instanceof Date)) {
+        throw "options.date must be a date object";
+      }
+      if (typeof options.isPublic !== "boolean") {
+        throw "options.isPublic must be a boolean value";
+      }
+
+      /**
+       * @property {Channel} channel - A Channel instance
+       */
+      this.channel = options.channel;
+
+      /**
+       * @property {string} date - Gregorian calendar date of the archive's content
+       */
+      this.date = options.date;
+
+      /**
+       * @property {boolean} isPublic - `true` for public archives, `false` for private ones
+       */
+      this.isPublic = options.isPublic || false;
+
+      /**
+       * @property {object} parsedDate - Contains padded year, month and day of date
+       * @property {string} year
+       * @property {string} month
+       * @property {string} day
+       */
+      this.parsedDate = parseDate(this.date);
+
+      /**
+       * @property {string} dateId - Date string in the form of YYYY/MM/DD
+       */
+      this.dateId = this.parsedDate.year+'/'+this.parsedDate.month+'/'+this.parsedDate.day;
+
+      /**
+       * @property {string} path - Path of the archive document
+       */
+      this.path = `${this.channel.path}/${this.dateId}`;
+
+      /**
+       * @property {string} metaPath - Path of the channel's metadata document
+       */
+      this.metaPath = `${this.channel.path}/meta`;
+
+      /**
+       * @property {object} client - Public or private remoteStorgage.js BaseClient
+       */
+      this.client = this.isPublic ? publicClient : privateClient;
+
+      /**
+       * @property {string} previous - Date of previous log file as YYYY/MM/DD
+       */
+      this.previous = options.previous;
+
+      /**
+       * @property {string} next - Date of next log file as YYYY/MM/DD
+       */
+      this.next = options.next;
+    }
+
+    /*
+     * @param {object} message
+     * @param {string} message.timestamp - Timestamp of the message
+     * @param {string} message.from      - The sender of the message
+     * @param {string} message.text      - The message itself
+     * @param {string} message.type      - Type of message (one of text, join, leave, action)
+     * @param {string} [message.id]      - Unique ID of message.
+     * @param {string} [message.sid]     - Unique stanza ID of message (XMPP only)
+     * @param {boolean} [message.edited] - If the message has been edited
+     *
+     * @returns {Promise}
+     */
+    addMessage (message) {
+      if (this.isPublic && !this.channel.name.match(/^#/)) {
+        return Promise.resolve(false);
+      }
+
+      message.type = message.type || 'text';
+
+      return this.client.getObject(this.path).then((archive) => {
+        if (typeof archive === 'object') {
+          return this._updateDocument(archive, message);
+        } else {
+          return this._createDocument(message);
+        }
+      });
+    }
+
+    /*
+     * Like <addMessage>, but for multiple messages at once. Useful for bulk
+     * imports of messages.
+     *
+     * @param {Array} messages     - Array of message objects (see params for addMessage)
+     * @param {boolean} overwrite  - If true, creates a new archive file and overwrites the old one. Defaults to false.
+     *
+     * @returns {Promise}
+     */
+    addMessages (messages, overwrite) {
+      if (this.isPublic && !this.channel.name.match(/^#/)) {
+        return Promise.resolve(false);
+      }
+
+      overwrite = overwrite || false;
+
+      messages.forEach(function(message) {
+        message.type = message.type || 'text';
+      });
+
+      if (overwrite) {
+        return this._createDocument(messages);
+      } else {
+        return this.client.getObject(this.path).then((archive) => {
+          if (typeof archive === 'object') {
+            return this._updateDocument(archive, messages);
+          } else {
+            return this._createDocument(messages);
+          }
+        });
+      }
+    }
+
+    /*
+     * Deletes the entire archive document from storage
+     *
+     * @returns {Promise}
+     */
+    remove () {
+      // TODO when removing, if previous is set, but not next, it means the
+      // removed file is the last archive. Thus, set "last" to previous file.
+      return this.client.remove(this.path);
+    }
+
+    /*
+     * Updates and writes an existing archive document
+     *
+     * @returns {Promise}
+     *
+     * @private
+     */
+    async _updateDocument (archive, messages) {
+      console.debug('[chat-messages] Updating archive document');
+
+      if (Array.isArray(messages)) {
+        messages.forEach(function(message) {
+          archive.today.messages.push(message);
+        });
+      } else {
+        archive.today.messages.push(messages);
+      }
+
+      return this._sync(archive);
+    }
+
+    /*
+     * Creates and writes a new archive document
+     *
+     * @returns {Promise}
+     *
+     * @private
+     */
+    async _createDocument (messages) {
+      console.debug('[chat-messages] Creating new archive document');
+      const archive = this._buildArchiveObject();
+
+      if (Array.isArray(messages)) {
+        messages.forEach(message => {
+          archive.today.messages.push(message);
+        });
+      } else {
+        archive.today.messages.push(messages);
+      }
+
+      if (this.previous || this.next) {
+        // The app is handling previous/next keys itself
+        // That includes setting 'next' in the previous log file
+        if (this.previous) { archive.today.previous = this.previous; }
+        if (this.next)     { archive.today.next = this.next; }
+      } else {
+        // Find and update previous archive, set 'previous' on this one
+        const previous = await this._updatePreviousArchive();
+        if (typeof previous === 'object') {
+          archive.today.previous = previous.today['@id'];
+        }
+      }
+
+      await this._sync(archive);
+
+      // TODO only write meta doc if argument is set on addMessages. This way
+      // we can avoid race conditions when syncing remote chat messages all at
+      // once for multiple days
+      await this._updateArchiveMetaDocument();
+
+      return;
+    }
+
+    /*
+     * Builds the object to be stored in remote storage
+     *
+     * @returns {object}
+     *
+     * @private
+     */
+    _buildArchiveObject () {
+      const roomName = this.channel.name.replace(/#/,'');
+
+      const archive = {
+        "@id": "chat-messages/"+this.channel.service.domain+"/channels/"+roomName+"/",
+        "@type": "ChatChannel",
+        "service": this.channel.service,
+        "name": this.channel.name,
+        "type": this.channel.type,
+        "today": {
+          "@id": this.dateId,
+          "@type": "ChatLog",
+          "messageType": "InstantMessage",
+          "messages": []
+        }
+      };
+
+      switch (this.channel.service.protocol) {
+        case 'IRC':
+          if (!this.channel.name.match(/^#/)) {
+            archive["@id"] = "chat-messages/"+this.channel.service.domain+"/users/"+this.channel.name+"/";
+          }
+          break;
+        case 'XMPP':
+          // XMPP-specific adjustments
+          break;
+      }
+
+      return archive;
+    }
+
+    /*
+     * Finds the previous archive document and updates its today.next value
+     *
+     * @returns {boolean|Promise}
+     *
+     * @private
+     */
+    _updatePreviousArchive () {
+      return this._findPreviousArchive().then((archive) => {
+        if (typeof archive === 'object' && archive.today) {
+          archive.today.next = this.dateId;
+          const path = this.path.substring(0, this.path.length-this.dateId.length)+archive.today['@id'];
+
+          return this.client.storeObject('daily-archive', path, archive).then(() => {
+            console.debug('[chat-messages] Previous archive written to remote storage at', path);
+            return archive;
+          });
+        } else {
+          console.debug('[chat-messages] Previous archive not found');
+          return false;
+        }
+      });
+    }
+
+    /*
+     * Returns the previous archive document
+     *
+     * @returns {Promise}
+     *
+     * @private
+     */
+    _findPreviousArchive () {
+      const monthPath = this.path.substring(0, this.path.length-2);
+      const yearPath = this.path.substring(0, this.path.length-5);
+      const basePath = this.path.substring(0, this.path.length-10);
+
+      return this.client.getListing(monthPath).then((listing) => {
+        const days = Object.keys(listing).map((i) => parseInt(i)).map((i) => {
+          return (i < parseInt(this.parsedDate.day)) ? i : null;
+        }).filter(function(i){ return i != null;  });
+
+        if (days.length > 0) {
+          const day = pad(Math.max(...days).toString());
+          return this.client.getObject(monthPath+day);
+        }
+
+        // Find last day in previous month
+        return this.client.getListing(yearPath).then((listing) => {
+          const months = Object.keys(listing).map((i) => parseInt(i.substr(0,2))).map((i) => {
+            return (i < parseInt(this.parsedDate.month)) ? i : null;
+          }).filter(function(i){ return i != null; });
+
+          if (months.length > 0) {
+            const month = pad(Math.max(...months).toString());
+
+            return this.client.getListing(yearPath+month+'/').then((listing) => {
+              const days = Object.keys(listing).map((i) => parseInt(i));
+              const day = pad(Math.max(...days).toString());
+              return this.client.getObject(yearPath+month+'/'+day);
+            });
+          } else {
+            // Find last month and day in previous year
+            return this.client.getListing(basePath).then((listing) => {
+
+              const years = Object.keys(listing).map((i) => parseInt(i.substr(0,4))).map((i) => {
+                return (i < parseInt(this.parsedDate.year)) ? i : null;
+              }).filter(function(i){ return i != null; });
+
+              if (years.length > 0) {
+                const year = Math.max(...years).toString();
+
+                return this.client.getListing(basePath+year+'/').then((listing) => {
+                  const months = Object.keys(listing).map((i) => parseInt(i.substr(0,2)));
+                  const month = pad(Math.max(...months).toString());
+
+                  return this.client.getListing(basePath+year+'/'+month+'/').then((listing) => {
+                    const days = Object.keys(listing).map((i) => parseInt(i));
+                    const day = pad(Math.max(...days).toString());
+                    return this.client.getObject(basePath+year+'/'+month+'/'+day);
+                  });
+                });
+              } else {
+                return false;
+              }
+            });
+          }
+        });
+      });
+    }
+
+    async _updateArchiveMetaDocument () {
+      const meta = await this.client.getObject(this.metaPath);
+      if (typeof meta !== 'object') {
+        return this._createArchiveMetaDocument();
+      }
+
+      // Only update document if current date is newer than known "last"
+      if (Date.parse(meta.last.replace('/','-')) > Date.parse(this.date)) {
+        console.debug('[chat-messages]', 'Updating meta document for channel');
+        meta.last = this.dateId;
+        await this.client.storeObject('daily-archive-meta', this.metaPath, meta);
+      }
+
+      return;
+    }
+
+    async _createArchiveMetaDocument () {
+      console.debug('[chat-messages]', 'Creating new meta document for channel');
+      // When creating a new meta doc, we need to find the oldest archive,
+      // because older versions of the module did not write a meta doc.
+      const first = await this._findFirstArchive();
+      const roomName = this.channel.name.replace(/#/,'');
+
+      const meta = {
+        '@id': `chat-messages/${this.channel.service.domain}/channels/${roomName}/meta`,
+        '@type': 'ChatChannelMeta',
+        first: first,
+        last: this.dateId // TODO might have to search for last?
+      };
+
+      return this.client.storeObject('daily-archive-meta', this.metaPath, meta)
+                        .then(() => console.debug('[chat-messages]', 'Meta document written to remote storage'))
+                        .catch(e => {
+                          console.log('[chat-messages]', `Failed to store ${this.metaPath}`);
+                          console.error(e);
+                        });
+    }
+
+    async _findFirstArchive () {
+      console.debug('[chat-messages]', 'Finding first archive for channel');
+      const years   = await this.client.getListing(`${this.channelPath}/`);
+      const year    = lowestNumberInListing(years);
+      const months  = await this.client.getListing(`${this.channelPath}/${year}/`);
+      const month   = lowestNumberInListing(months);
+      const days    = await this.client.getListing(`${this.channelPath}/${year}/${pad(month)}/`);
+      const day     = lowestNumberInListing(days);
+      const firstId =  `${year}/${pad(month)}/${pad(day)}`;
+      console.debug('[chat-messages]', 'First is', firstId);
+      return firstId;
+    }
+
+    /*
+     * Write archive document
+     *
+     * @returns {Promise}
+     *
+     * @private
+     */
+    async _sync (obj) {
+      console.debug(`[chat-messages] Writing archive object with ${obj.today.messages.length} messages`);
+
+      return this.client.storeObject('daily-archive', this.path, obj).then(function(){
+        console.debug('[chat-messages] Archive written to remote storage');
+        return true;
+      },function(error){
+        console.warn('[chat-messages] Error trying to store object', error);
+        return error;
+      });
+
+      // TODO await this.client.startSync();
+    }
+  };
+
+  return {
+    exports: {
+      DailyArchive,
+      privateClient,
+      publicClient
+    }
+  };
+};
+
+export default { name: 'chat-messages', builder: ChatMessages };

webpack.config.js

@@ -1,32 +1,33 @@
-var webpack = require('webpack');
-var isProd = (process.env.NODE_ENV === 'production');
-
-// minimize only in production
-var plugins = isProd ? [new webpack.optimize.UglifyJsPlugin({minimize: true })] : []
+/* global __dirname */
+const isProd = (process.env.NODE_ENV === 'production');
+const path = require('path');
 
 module.exports = {
-  entry: './index.js',
-  // source map not in production
-  devtool: !isProd && 'source-map',
+  entry: ['./src/chat-messages.js'],
   output: {
-    filename: __dirname + '/dist/build.js',
-    libraryTarget: 'umd'
-  },
-  externals: {
-    "remotestoragejs": {
-      root: "RemoteStorage", // <script src='remotestorage.js'> will resolve in this.RemoteStorage
-      commonjs2: "remotestoragejs", // require('remotestoragejs')
-      commonjs: "remotestoragejs", // require('remotestoragejs')
-      amd: "remotestoragejs" // define(['remotestoragejs'], ...)
-    }
+    path: path.resolve(__dirname, 'dist'),
+    filename: 'build.js',
+    library: 'ChatMessages',
+    libraryTarget: 'umd',
+    libraryExport: 'default',
+    umdNamedDefine: true,
+    globalObject: 'this'
   },
+  mode: isProd ? 'production' : 'development',
+  devtool: isProd ? 'source-map' : 'eval-source-map',
   module: {
-    loaders: [
-      { test: /\.js$/, exclude: '/node_modules|dist/', loader: 'babel?presets[]=es2015' },
+    rules: [
+      {
+        test: /\.js$/,
+        exclude: /node_modules/,
+        use: {
+          loader: 'babel-loader',
+          options: {
+            presets: ['@babel/preset-env']
+          }
+        }
+      },
     ]
   },
-  resolve: {
-    extensions: ['', '.js']
-  },
-  plugins: plugins
+  // plugins: plugins
 };