Move all firbase dependencies from actions layer to firebaseService layer (#13)

app/firebaseServices/circles/CircleService.ts

@@ -1,7 +1,6 @@
 // - Import react components
 import { firebaseRef, firebaseAuth } from 'app/firebase/'
 
-
 import { SocialError } from 'domain/common'
 import { ICircleService } from 'services/circles'
 import { Circle, UserFollower } from 'domain/circles'
@@ -9,19 +8,113 @@ import { User } from 'domain/users'
 
 /**
  * Firbase circle service
- * 
+ *
  * @export
  * @class CircleService
  * @implements {ICircleService}
  */
 export class CircleService implements ICircleService {
 
-    addCircle: (userId: string, circle: Circle) => Promise<string>
-    addFollowingUser: (userId: string, circleId: string, userCircle: User, userFollower: UserFollower, userFollowingId: string) => Promise<void>
-    deleteFollowingUser: (userId: string, circleId: string, userFollowingId: string) => Promise<void>
-    updateCircle: (userId: string, circle: Circle, circleId: string) => Promise<void>
-    deleteCircle: (circleId: string, userId: string) => Promise<void>
-    getCircles: () => Promise<{ [circleId: string]: Circle }>
-    getCirclesByUserId: (userId: string) => Promise<{ [circleId: string]: Circle }>
+  public addCircle: (userId: string, circle: Circle)
+    => Promise<string> = (userId, circle) => {
+      return new Promise<string>((resolve,reject) => {
+        let circleRef = firebaseRef.child(`userCircles/${userId}/circles`).push(circle)
+        circleRef.then(() => {
+          resolve(circleRef.key as string)
+        })
+      .catch((error: any) => {
+        reject(new SocialError(error.code, error.message))
+      })
 
-}
+      })
+
+    }
+
+  public addFollowingUser: (userId: string, circleId: string, userCircle: User, userFollower: UserFollower, userFollowingId: string)
+    => Promise<void> = (userId, circleId, userCircle, userFollower, userFollowingId) => {
+      return new Promise<void>((resolve,reject) => {
+
+        let updates: any = {}
+        updates[`userCircles/${userId}/circles/${circleId}/users/${userFollowingId}`] = userCircle
+        updates[`userCircles/${userFollowingId}/circles/-Followers/users/${userId}`] = userFollower
+
+        firebaseRef.update(updates).then(() => {
+          resolve()
+        })
+      .catch((error: any) => {
+        reject(new SocialError(error.code, error.message))
+      })
+
+      })
+    }
+  public deleteFollowingUser: (userId: string, circleId: string, userFollowingId: string)
+    => Promise<void> = (userId, circleId, userFollowingId) => {
+      return new Promise<void>((resolve,reject) => {
+
+        let updates: any = {}
+        updates[`userCircles/${userId}/circles/${circleId}/users/${userFollowingId}`] = null
+        updates[`userCircles/${userFollowingId}/circles/-Followers/users/${userId}`] = null
+
+        firebaseRef.update(updates).then(() => {
+          resolve()
+        })
+        .catch((error: any) => {
+          reject(new SocialError(error.code, error.message))
+        })
+
+      })
+    }
+  public updateCircle: (userId: string, circleId: string, circle: Circle)
+    => Promise<void> = (userId, circleId, circle) => {
+      return new Promise<void>((resolve,reject) => {
+
+        let updates: any = {}
+        updates[`userCircles/${userId}/circles/${circleId}`] = circle
+        firebaseRef.update(updates).then(() => {
+          resolve()
+        })
+        .catch((error: any) => {
+          reject(new SocialError(error.code, error.message))
+        })
+
+      })
+    }
+
+  public deleteCircle: (userId: string, circleId: string)
+    => Promise<void> = (userId, circleId) => {
+      return new Promise<void>((resolve,reject) => {
+
+        let updates: any = {}
+        updates[`userCircles/${userId}/circles/${circleId}`] = null
+        firebaseRef.update(updates).then(() => {
+          resolve()
+        })
+        .catch((error: any) => {
+          reject(new SocialError(error.code, error.message))
+        })
+
+      })
+    }
+  public getCircles: (userId: string) => Promise<{ [circleId: string]: Circle }> = (userId) => {
+    return new Promise<{ [circleId: string]: Circle }>((resolve,reject) => {
+      let circlesRef: any = firebaseRef.child(`userCircles/${userId}/circles`)
+
+      circlesRef.once('value').then((snapshot: any) => {
+        let circles: any = snapshot.val() || {}
+        let parsedCircles: { [circleId: string]: Circle } = {}
+        Object.keys(circles).forEach((circleId) => {
+
+          parsedCircles[circleId] = {
+            id: circleId,
+            ...circles[circleId]
+          }
+        })
+        resolve(parsedCircles)
+      })
+        .catch((error: any) => {
+          reject(new SocialError(error.code, error.message))
+        })
+
+    })
+  }
+}