build chatModel

package.json

@@ -1,8 +1,10 @@
 {
   "dependencies": {
+    "@types/uuid": "^10.0.0",
     "bloatless-react": "^1.3.8",
     "esbuild": "^0.23.0",
-    "udn-frontend": "^1.0.7-beta1"
+    "udn-frontend": "^1.0.7-beta1",
+    "uuid": "^10.0.0"
   },
   "scripts": {
     "build": "esbuild src/index.tsx --bundle --outdir=dist"

src/Model/chatModel.ts

@@ -1,32 +1,134 @@
 // this file is responsible for managing chats and chat messages. objects are delegated to objectModel.ts.
 
 import StorageModel, { storageKeys } from "./storageModel";
+import { createTimestamp, stringify } from "../utility";
 
-import { createTimestamp } from "../utility";
+import { checkIsValidObject } from "../typeSafety";
+import { v4 } from "uuid";
 
 export class ChatModel {
+  // data
+  id: string;
+  storageModel: StorageModel;
   info: ChatInfo;
 
-    messages: ChatMessage[];
-    objects: ChatObject[];
-    outbox: ChatMessage[];
+  messages = new Set<ChatMessage>();
+  objects = new Map<string, ChatObject>();
+  outbox = new Set<ChatMessage>();
 
+  // paths
+  get infoPath(): string {
+    return storageKeys.chatInfo(this.id);
+  }
+
+  get messageDirPath(): string {
+    return storageKeys.chatMessages(this.id);
+  }
+
+  get objectDirPath(): string {
+    return storageKeys.chatObjects(this.id);
+  }
+
+  get outboxDirPath(): string {
+    return storageKeys.chatOutbox(this.id);
+  }
+
+  getMessagePath(id: string): string {
+    return StorageModel.join(this.messageDirPath, id);
+  }
+
+  getObjectPath(id: string): string {
+    return StorageModel.join(this.objectDirPath, id);
+  }
+
+  // store & add
+  storeInfo(): void {
+    this.storageModel.storeStringifiable(this.infoPath, this.info);
+  }
+
+  addMessage(message: ChatMessage): void {
+    if (!this.messages.has(message)) {
+      this.messages.add(message);
+    }
+    const messagePath: string = this.getMessagePath(message.id);
+    this.storageModel.storeStringifiable(messagePath, message);
+  }
+
+  addObject(object: ChatObject): void {
+    this.objects.set(object.id, object);
+    const objectPath: string = this.getObjectPath(object.id);
+    this.storageModel.storeStringifiable(objectPath, object);
+  }
+
+  // restore
+  restoreInfo(): void {
+    const info: any = this.storageModel.restoreStringifiable(this.infoPath);
+    this.info == info ?? generateChatInfo("0");
+  }
+
+  restoreMessages(): void {
+    const messageIds: string[] = this.storageModel.list(this.messageDirPath);
+    if (!Array.isArray(messageIds)) return;
+
+    for (const messageId of messageIds) {
+      const messagePath: string = this.getMessagePath(messageId);
+      const message: any = this.storageModel.restoreStringifiable(messagePath);
+      if (checkIsValidObject(message) == false) return;
+
+      this.messages.add(message);
+    }
+  }
+
+  restoreObjects(): void {
+    const objectIds: string[] = this.storageModel.list(this.objectDirPath);
+    if (!Array.isArray(objectIds)) return;
+
+    for (const objectId of objectIds) {
+      const objectPath: string = this.getObjectPath(objectId);
+      const object: any = this.storageModel.restoreStringifiable(objectPath);
+      if (checkIsValidObject(object) == false) return;
+      if (object.id != objectId) return;
+
+      this.objects.set(objectId, object);
+    }
+  }
+
+  // init
   constructor(storageModel: StorageModel, chatId: string) {
-      const infoPath = storageKeys.chatInfo(chatId)
-      const info = storageModel.restoreStringifiable(infoPath);
+    this.id = chatId;
+    this.storageModel = storageModel;
+
+    this.restoreInfo();
+    this.restoreMessages();
+    this.restoreObjects();
   }
 }
 
 // creation methods
-export function createChatMessage(channel: string, sender: string, body: string): ChatMessage {
+export function generateChatInfo(primaryChannel: string): ChatInfo {
+  return {
+    primaryChannel,
+    secondaryChannels: [],
+    encryptionKey: "",
+    hasUnreadMessages: false,
+  };
+}
+
+export function createChatMessage(
+  channel: string,
+  sender: string,
+  body: string
+): ChatMessage {
   return {
     dataVersion: "v2",
 
+    id: v4(),
+
     channel,
     sender,
     body,
     dateSent: createTimestamp(),
-    }
+  };
 }
 
 // types
@@ -41,24 +143,26 @@ export interface ChatInfo {
 export interface ChatMessage {
   dataVersion: "v2";
 
+  id: string;
+
   channel: string;
   sender: string;
   body: string;
   dateSent: string;
 
   stringifiedObject?: string;
-  }
+}
 
-  export interface ChatObject {
+export interface ChatObject {
   dataVersion: "v2";
 
   id: string;
   title: string;
 
-    contentVersions: { [key: string]: MessageObjectContent };
-  }
+  contentVersions: { [key: string]: ChatObjectContent };
+}
 
-  export interface MessageObjectContent {
+export interface ChatObjectContent {
   dataVersion: "v2";
 
   id: string;
@@ -70,5 +174,4 @@ export interface ChatMessage {
   status?: string;
   date?: string;
   time?: string;
-  }
-  
+}

src/Model/connectionModel.ts

@@ -33,7 +33,7 @@ export default class ConnectionModel {
 
   // messaging
   sendChatMessage = (chatMessage: ChatMessage): boolean => {
-    const stringifiedBody = stringify(chatMessage);
+    const stringifiedBody: string = stringify(chatMessage);
     return this.udn.sendMessage(chatMessage.channel, stringifiedBody);
   };
 

src/Model/storageModel.ts

@@ -2,13 +2,15 @@
 
 import { parse, stringify } from "../utility";
 
+import { DATA_VERSION } from "../typeSafety";
+
 export default class StorageModel {
   storageEntryTree: StorageEntry = {};
 
   // basic
   store = (key: string, value: string): void => {
     localStorage.setItem(key, value);
-    const pathComponents = this.keyToPathComponents(key);
+    const pathComponents: string[] = StorageModel.keyToPathComponents(key);
     this.updateTree(...pathComponents);
   };
 
@@ -21,9 +23,9 @@ export default class StorageModel {
   };
 
   list = (key: string): string[] => {
-    const pathComponents = this.keyToPathComponents(key);
+    const pathComponents: string[] = StorageModel.keyToPathComponents(key);
 
-    let currentParent = this.storageEntryTree;
+    let currentParent: StorageEntry = this.storageEntryTree;
     for (const component of pathComponents) {
       currentParent = currentParent[component];
     }
@@ -32,13 +34,13 @@ export default class StorageModel {
   };
 
   // stringifiable
-  storeStringifiable = (key: string, value: any[]): void => {
-    const valueString = stringify(value);
+  storeStringifiable = (key: string, value: any): void => {
+    const valueString: string = stringify(value);
     this.store(key, valueString);
   };
 
   restoreStringifiable = (key: string): any | null => {
-    const valueString = this.restore(key);
+    const valueString: string | null = this.restore(key);
     if (!valueString) return null;
 
     return parse(valueString);
@@ -47,14 +49,14 @@ export default class StorageModel {
   // init
   constructor() {
     for (const key of Object.keys(localStorage)) {
-      const components = this.keyToPathComponents(key);
+      const components: string[] = StorageModel.keyToPathComponents(key);
       this.updateTree(...components);
     }
   }
 
   // utility
   updateTree = (...pathComponents: string[]) => {
-    let currentParent = this.storageEntryTree;
+    let currentParent: StorageEntry = this.storageEntryTree;
     for (const pathPart of pathComponents) {
       if (!currentParent[pathPart]) {
         currentParent[pathPart] = {};
@@ -64,13 +66,22 @@ export default class StorageModel {
     }
   };
 
-  pathComponentsToKey = (...pathComponents: string[]): string => {
+  static pathComponentsToKey = (...pathComponents: string[]): string => {
     return pathComponents.join("/");
   };
 
-  keyToPathComponents = (key: string): string[] => {
+  static keyToPathComponents = (key: string): string[] => {
     return key.split("/");
   };
+
+  static join = (...items: string[]): string => {
+    let allComponents: string[] = [];
+    for (const item of items) {
+      const parts = this.keyToPathComponents(item);
+      allComponents.push(...parts);
+    }
+    return StorageModel.pathComponentsToKey(...allComponents);
+  };
 }
 
 // types
@@ -79,21 +90,21 @@ export type StorageEntry = { [key: string]: StorageEntry };
 // keys
 export const storageKeys = {
   // connection
-  socketAddress: "v2/connection/socket-address",
+  socketAddress: `${DATA_VERSION}/connection/socket-address`,
 
   // settings
-  userName: "v2/settings/user-name",
-  firstDayOfWeek: "v2/settings/first-day-of-week",
+  userName: `${DATA_VERSION}/settings/user-name`,
+  firstDayOfWeek: `${DATA_VERSION}/settings/first-day-of-week`,
 
   // history
-  previousAddresses: "v2/history/previous-addresses",
-  previousObjectCategories: "v2/history/object-categories",
-  previousObjectStatuses: "v2/history/object-statuses",
-  previousObjectFilters: "v2/history/object-filters",
+  previousAddresses: `${DATA_VERSION}/history/previous-addresses`,
+  previousObjectCategories: `${DATA_VERSION}/history/object-categories`,
+  previousObjectStatuses: `${DATA_VERSION}/history/object-statuses`,
+  previousObjectFilters: `${DATA_VERSION}/history/object-filters`,
 
   // chat etc
-  chatInfo: (id: string) => `v2/chat/${id}/info`,
-  chatMessages: (id: string) => `v2/chat/${id}/messages`,
-  chatObjects: (id: string) => `v2/chat/${id}/objects`,
-  chatOutbox: (id: string) => `v2/chat/${id}/outbox`,
+  chatInfo: (id: string) => `${DATA_VERSION}/chat/${id}/info`,
+  chatMessages: (id: string) => `${DATA_VERSION}/chat/${id}/messages`,
+  chatObjects: (id: string) => `${DATA_VERSION}/chat/${id}/objects`,
+  chatOutbox: (id: string) => `${DATA_VERSION}/chat/${id}/outbox`,
 };

src/Upgrade/v1.ts

@@ -1,8 +1,10 @@
 import {
   ChatMessage,
   ChatObject,
-  MessageObjectContent,
-} from "../Model/chatTypes";
+  ChatObjectContent,
+} from "../Model/chatModel";
+
+import { v4 } from "uuid";
 
 // ChatMessage
 export interface ChatMessageV1 {
@@ -21,6 +23,8 @@ export function upgradeMessageFromV1(
   return {
     dataVersion: "v2",
 
+    id: v4(),
+
     channel,
     sender,
     body,
@@ -41,7 +45,7 @@ export function upgradeMessageObjectFromV1(
 ): ChatObject {
   const { id, title, contentVersions } = messageObjectV1;
 
-  const upgradedContentVersions: { [key: string]: MessageObjectContent } = {};
+  const upgradedContentVersions: { [key: string]: ChatObjectContent } = {};
   for (const entry of Object.entries(contentVersions)) {
     const [id, object] = entry;
     const upgraded = upgradeMessageObjectContentFromV1(object);
@@ -73,7 +77,7 @@ export interface MessageObjectContentV1 {
 
 export function upgradeMessageObjectContentFromV1(
   messageObjectContentV1: MessageObjectContentV1
-): MessageObjectContent {
+): ChatObjectContent {
   const {
     isoDateVersionCreated,
     id,

src/typeSafety.ts

@@ -0,0 +1,5 @@
+export const DATA_VERSION = "v2"
+
+export function checkIsValidObject(object: any): boolean {
+  return object.dataVersion == DATA_VERSION;
+}