Version 0.3.0

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@ezerous/breeze",
-  "version": "0.2.0",
+  "version": "0.3.0",
   "description": "A reactive data-store for OrbitDB.",
   "license": "MIT",
   "author": "Ezerous <ezerous@gmail.com>",
@@ -8,7 +8,7 @@
   "repository": "github:Ezerous/breeze",
   "dependencies": {
     "deepmerge": "~4.2.2",
-    "ipfs": "~0.50.2",
+    "ipfs": "~0.51.0",
     "is-plain-object": "~5.0.0",
     "orbit-db": "~0.26.0",
     "orbit-db-identity-provider": "~0.3.1",

src/orbit/orbitActions.js

@@ -11,6 +11,7 @@ export const ORBIT_IDENTITY_PROVIDER_FAILED = 'ORBIT_IDENTITY_PROVIDER_FAILED';
 // Database Status
 export const ORBIT_DATABASE_CREATING = 'ORBIT_DATABASE_CREATING';
 export const ORBIT_DATABASE_CREATED = 'ORBIT_DATABASE_CREATED';
+export const ORBIT_DATABASE_ALREADY_EXISTS = 'ORBIT_DATABASE_ALREADY_EXISTS';
 export const ORBIT_DATABASE_FAILED = 'ORBIT_DATABASE_FAILED';
 export const ORBIT_DATABASE_LISTEN = 'ORBIT_DATABASE_LISTEN';
 
@@ -18,6 +19,7 @@ export const ORBIT_DATABASE_LISTEN = 'ORBIT_DATABASE_LISTEN';
 export const ORBIT_DATABASE_READY = 'ORBIT_DATABASE_READY';
 export const ORBIT_DATABASE_REPLICATING = 'ORBIT_DATABASE_REPLICATING';
 export const ORBIT_DATABASE_REPLICATED = 'ORBIT_DATABASE_REPLICATED';
+export const ORBIT_DATABASE_WRITE = 'ORBIT_DATABASE_WRITE';
 
 export function orbitInit (breeze, id) {
     return {

src/orbit/orbitConstants.js

@@ -1,12 +1,6 @@
-// All valid OrbitDB types
-export const ORBIT_TYPE_LOG = 'log';
-export const ORBIT_TYPE_FEED = 'feed';
-export const ORBIT_TYPE_KEYVALUE = 'keyvalue';
-export const ORBIT_TYPE_DOCS = 'docs';
-export const ORBIT_TYPE_COUNTER = 'counter';
-
 // OrbitDB Databases status
 export const DB_STATUS_INIT = 'init';
 export const DB_STATUS_READY = 'ready';
 export const DB_STATUS_REPLICATING = 'replicating';
 export const DB_STATUS_REPLICATED = 'replicated';
+export const DB_STATUS_WRITTEN = 'written';

src/orbit/orbitReducer.js

@@ -5,7 +5,8 @@ import {
     ORBIT_DATABASE_REPLICATING,
     ORBIT_INITIALIZING,
     ORBIT_INITIALIZED,
-    ORBIT_INIT_FAILED
+    ORBIT_INIT_FAILED,
+    ORBIT_DATABASE_WRITE
 } from "./orbitActions";
 
 import {
@@ -13,6 +14,7 @@ import {
     DB_STATUS_READY,
     DB_STATUS_REPLICATED,
     DB_STATUS_REPLICATING,
+    DB_STATUS_WRITTEN
 } from "./orbitConstants";
 
 import {STATUS_INITIALIZING, STATUS_INITIALIZED, STATUS_FAILED } from "../constants";
@@ -47,24 +49,32 @@ const orbitReducer = (state = initialState, action) => {
             return newDatabasesStatus(state, action, DB_STATUS_REPLICATING);
         case ORBIT_DATABASE_REPLICATED:
             return newDatabasesStatus(state, action, DB_STATUS_REPLICATED);
+        case ORBIT_DATABASE_WRITE:
+            return newDatabasesStatus(state, action, DB_STATUS_WRITTEN);
         default:
             return state;
     }
 };
 
 function newDatabasesStatus (state, action, status) {
+    const { timestamp, database: {id} } = action;
+    // Previous values, if exist
+    const lastReplication = state.databases[id] ? state.databases[id].lastReplication : null;
+    const lastWrite = state.databases[id] ? state.databases[id].lastWrite : null;
+
     return {
         ...state,
         databases:{
             ...state.databases,
-            [action.database.id]: {
-                ...state[action.database.id],
+            [id]: {
+                ...state.databases[id],
                 status,
-                timestamp: action.timestamp
+                timestamp,
+                lastReplication: status === DB_STATUS_REPLICATED ? timestamp : lastReplication,
+                lastWrite: status === DB_STATUS_WRITTEN ? timestamp : lastWrite,
             }
         }
     }
 }
 
-
 export default orbitReducer;

src/orbit/orbitSaga.js

@@ -4,6 +4,7 @@ import OrbitDB from 'orbit-db';
 import Identities from 'orbit-db-identity-provider'
 
 import {
+    ORBIT_DATABASE_ALREADY_EXISTS,
     ORBIT_DATABASE_CREATED,
     ORBIT_DATABASE_CREATING,
     ORBIT_DATABASE_FAILED,
@@ -11,6 +12,7 @@ import {
     ORBIT_DATABASE_READY,
     ORBIT_DATABASE_REPLICATED,
     ORBIT_DATABASE_REPLICATING,
+    ORBIT_DATABASE_WRITE,
     ORBIT_IDENTITY_PROVIDER_ADD,
     ORBIT_IDENTITY_PROVIDER_ADDED,
     ORBIT_IDENTITY_PROVIDER_FAILED,
@@ -19,11 +21,8 @@ import {
     ORBIT_INITIALIZING
 } from './orbitActions';
 
-import { resolveOrbitDBTypeFun} from './orbitUtils';
-
 const LOGGING_PREFIX = 'orbitSaga: ';
 
-
 /*
  * Add Orbit Identity Provider
  */
@@ -69,26 +68,35 @@ function * initOrbit(action) {
     }
 }
 
+// Keeps track of added databases, so no duplicates are attempted to be created
+let databases = new Set();
+
 /*
- * Creates an orbit database given a name and a type as its parameters
+ * Creates and loads an orbit database given a name and a type as its parameters
+ * Note: db.name can also be an OrbitDB address
  */
 function * createDatabase({ orbit, db }) {
     try {
-        const dbTypeFun = resolveOrbitDBTypeFun(orbit, db.type);
+        const { size } = databases;
+        databases.add(orbit.id + db.name);
 
-        const createdDB = yield call([orbit, dbTypeFun], db.name);
+        if (databases.size > size) {
+            const createdDB = yield call([orbit, orbit.open], ...[db.name, { type: db.type, create: true }]);
 
-        yield put({ type: ORBIT_DATABASE_CREATED, database: createdDB, timestamp: +new Date });
+            yield put({ type: ORBIT_DATABASE_CREATED, database: createdDB, timestamp: +new Date });
 
-        // Event channel setup
-        yield spawn(callListenForOrbitDatabaseEvent, { database: createdDB });
+            // Event channel setup
+            yield spawn(callListenForOrbitDatabaseEvent, { database: createdDB });
 
-        // Wait for event channel setup before loading
-        yield take(action => action.type === ORBIT_DATABASE_LISTEN && action.id === createdDB.id);
+            // Wait for event channel setup before loading
+            yield take(action => action.type === ORBIT_DATABASE_LISTEN && action.id === createdDB.id);
 
-        yield call([createdDB, createdDB.load]);
+            yield call([createdDB, createdDB.load]);
 
-        return createdDB;
+            return createdDB;
+        }
+        else
+            yield put({ type: ORBIT_DATABASE_ALREADY_EXISTS, database: db.name });
     } catch (error) {
         yield put({ type: ORBIT_DATABASE_FAILED, error });
         console.error(LOGGING_PREFIX + 'OrbitDB database creation error:');
@@ -112,16 +120,21 @@ function createOrbitDatabaseChannel (database){
         const onReplicated = () => {
             emit({ type: ORBIT_DATABASE_REPLICATED, database, timestamp: +new Date });
         };
+        const onWrite = (address, entry) => {
+            emit({ type: ORBIT_DATABASE_WRITE, database, entry, timestamp: +new Date });
+        };
 
         const eventListener = database.events
             .once('ready', onReady)
             .on('replicate', onReplicate)
             .on('replicated', onReplicated)
+            .on('write', onWrite)
 
         return () => {
             eventListener.removeListener('ready',onReady)
             eventListener.removeListener('replicate',onReplicate)
             eventListener.removeListener('replicated',onReplicated)
+            eventListener.removeListener('write',onWrite)
         };
 
     })

src/orbit/orbitUtils.js

@@ -1,25 +0,0 @@
-import * as orbitTypes from "./orbitConstants";
-
-export function resolveOrbitDBTypeFun(orbitdb, type){
-    let dbTypeFun;
-    switch(type) {
-        case orbitTypes.ORBIT_TYPE_LOG:
-            dbTypeFun = orbitdb.log;
-            break;
-        case orbitTypes.ORBIT_TYPE_FEED:
-            dbTypeFun = orbitdb.feed;
-            break;
-        case orbitTypes.ORBIT_TYPE_KEYVALUE:
-            dbTypeFun = orbitdb.keyvalue;
-            break;
-        case orbitTypes.ORBIT_TYPE_DOCS:
-            dbTypeFun = orbitdb.docs;
-            break;
-        case orbitTypes.ORBIT_TYPE_COUNTER:
-            dbTypeFun = orbitdb.counter;
-            break;
-        default:
-            throw "Invalid OrbitDB type!";
-    }
-    return dbTypeFun;
-}