From bdd0843d94d89007a41a8b583ffc0f644ded20b9 Mon Sep 17 00:00:00 2001
From: Faruk AYDIN <omerfaruk26@gmail.com>
Date: Thu, 14 Oct 2021 15:17:58 +0200
Subject: [PATCH] feat: Implement createAuthLink mutation

---
 packages/backend/package.json                 |  1 +
 packages/backend/src/apps/twitter/index.ts    | 24 +++++++++++++
 packages/backend/src/apps/twitter/info.json   | 13 ++++++-
 .../src/graphql/mutations/create-auth-link.ts | 35 +++++++++++++++++++
 packages/backend/src/graphql/root-mutation.ts |  4 ++-
 .../backend/src/graphql/types/auth-link.ts    | 10 ++++++
 .../backend/src/graphql/types/credential.ts   |  1 +
 packages/backend/src/models/credential.ts     | 12 +++++++
 packages/backend/src/models/user.ts           | 14 +++++++-
 packages/backend/src/types/field.d.ts         | 14 ++++++++
 yarn.lock                                     |  5 +++
 11 files changed, 130 insertions(+), 3 deletions(-)
 create mode 100644 packages/backend/src/apps/twitter/index.ts
 create mode 100644 packages/backend/src/graphql/mutations/create-auth-link.ts
 create mode 100644 packages/backend/src/graphql/types/auth-link.ts
 create mode 100644 packages/backend/src/types/field.d.ts

diff --git a/packages/backend/package.json b/packages/backend/package.json
index 2bd1c4a6..1a673317 100644
--- a/packages/backend/package.json
+++ b/packages/backend/package.json
@@ -26,6 +26,7 @@
     "morgan": "^1.10.0",
     "objection": "^2.2.17",
     "pg": "^8.7.1",
+    "twitter-api-v2": "1.6.0",
     "winston": "^3.3.3"
   },
   "contributors": [
diff --git a/packages/backend/src/apps/twitter/index.ts b/packages/backend/src/apps/twitter/index.ts
new file mode 100644
index 00000000..79ab8444
--- /dev/null
+++ b/packages/backend/src/apps/twitter/index.ts
@@ -0,0 +1,24 @@
+import TwitterApi from 'twitter-api-v2';
+import App from '../../models/app';
+import Field from '../../types/field';
+
+export default class Twitter {
+  client: any
+  appData: any
+
+  constructor(credentialsData: any) {
+    this.client = new TwitterApi({
+      appKey: credentialsData.consumerKey,
+      appSecret: credentialsData.consumerSecret
+    });
+
+    this.appData = App.findOneByName('twitter')
+  }
+
+  async createAuthLink() {
+    const appFields = this.appData.fields.find((field: Field) => field.key == 'oAuthRedirectUrl')
+    const callbackUrl = appFields.value;
+
+    return this.client.generateAuthLink(callbackUrl);
+  }
+}
diff --git a/packages/backend/src/apps/twitter/info.json b/packages/backend/src/apps/twitter/info.json
index f2f7a6f9..a160134a 100644
--- a/packages/backend/src/apps/twitter/info.json
+++ b/packages/backend/src/apps/twitter/info.json
@@ -12,7 +12,7 @@
       "type": "string",
       "required": true,
       "readOnly": true,
-      "value": "http://localhost:3000/sample",
+      "value": "http://localhost:3001/app/twitter/connections/add",
       "placeholder": null,
       "description": "When asked to input an OAuth callback or redirect URL in Twitter OAuth, enter the URL above.",
       "docUrl": "https://automatisch.io/docs/twitter#oauth-redirect-url",
@@ -84,6 +84,17 @@
           ]
         }
       ]
+    },
+    {
+      "step": 2,
+      "type": "mutation",
+      "name": "createAuthLink",
+      "fields": [
+        {
+          "name": "id",
+          "value": "{response.credentialId}"
+        }
+      ]
     }
   ]
 }
diff --git a/packages/backend/src/graphql/mutations/create-auth-link.ts b/packages/backend/src/graphql/mutations/create-auth-link.ts
new file mode 100644
index 00000000..103a12e0
--- /dev/null
+++ b/packages/backend/src/graphql/mutations/create-auth-link.ts
@@ -0,0 +1,35 @@
+import { GraphQLNonNull, GraphQLInt } from 'graphql';
+import Credential from '../../models/credential';
+import authLinkType from '../types/auth-link';
+import User from '../../models/user';
+
+type Params = {
+  credentialId: number,
+}
+const createAuthLinkResolver = async (params: Params) => {
+  const user = await User.query().findOne({
+    email: 'user@automatisch.com'
+  })
+
+  const credential = await Credential.query().findOne({
+    user_id: user.id,
+    id: params.credentialId
+  })
+
+  const appClass = (await import(`../../apps/${credential.key}`)).default;
+
+  const appInstance = new appClass(credential.data)
+  const authLink = await appInstance.createAuthLink();
+
+  return authLink;
+}
+
+const createAuthLink = {
+  type: authLinkType,
+  args: {
+    credentialId: { type: GraphQLNonNull(GraphQLInt) },
+  },
+  resolve: (_: any, params: Params) => createAuthLinkResolver(params)
+};
+
+export default createAuthLink;
diff --git a/packages/backend/src/graphql/root-mutation.ts b/packages/backend/src/graphql/root-mutation.ts
index 1a54013b..3d0f4f8f 100644
--- a/packages/backend/src/graphql/root-mutation.ts
+++ b/packages/backend/src/graphql/root-mutation.ts
@@ -1,10 +1,12 @@
 import { GraphQLObjectType } from 'graphql';
 import createCredential from './mutations/create-credential';
+import createAuthLink from './mutations/create-auth-link';
 
 const rootMutation = new GraphQLObjectType({
   name: 'Mutation',
   fields: {
-    createCredential: createCredential
+    createCredential: createCredential,
+    createAuthLink: createAuthLink
   }
 });
 
diff --git a/packages/backend/src/graphql/types/auth-link.ts b/packages/backend/src/graphql/types/auth-link.ts
new file mode 100644
index 00000000..fbc4a6f2
--- /dev/null
+++ b/packages/backend/src/graphql/types/auth-link.ts
@@ -0,0 +1,10 @@
+import { GraphQLObjectType, GraphQLString } from 'graphql';
+
+const authLinkType = new GraphQLObjectType({
+  name: 'authLink',
+  fields: {
+    url: { type: GraphQLString }
+  }
+})
+
+export default authLinkType;
diff --git a/packages/backend/src/graphql/types/credential.ts b/packages/backend/src/graphql/types/credential.ts
index 6bc3abb2..6a09df16 100644
--- a/packages/backend/src/graphql/types/credential.ts
+++ b/packages/backend/src/graphql/types/credential.ts
@@ -4,6 +4,7 @@ import twitterCredentialType from './twitter-credential';
 const credentialType = new GraphQLObjectType({
   name: 'credential',
   fields: {
+    id: { type: GraphQLString },
     key: { type: GraphQLString },
     displayName: { type: GraphQLString },
     data: { type: twitterCredentialType },
diff --git a/packages/backend/src/models/credential.ts b/packages/backend/src/models/credential.ts
index 3f55904a..4231c90b 100644
--- a/packages/backend/src/models/credential.ts
+++ b/packages/backend/src/models/credential.ts
@@ -1,4 +1,5 @@
 import Base from './base'
+import User from './user'
 
 class Credential extends Base {
   id!: number
@@ -22,6 +23,17 @@ class Credential extends Base {
       verified: { type: 'boolean' },
     }
   }
+
+  static relationMappings = () => ({
+    credentials: {
+      relation: Base.BelongsToOneRelation,
+      modelClass: User,
+      join: {
+        from: 'credentials.user_id',
+        to: 'users.id',
+      },
+    }
+  })
 }
 
 export default Credential;
diff --git a/packages/backend/src/models/user.ts b/packages/backend/src/models/user.ts
index 7b9df512..694ad0e8 100644
--- a/packages/backend/src/models/user.ts
+++ b/packages/backend/src/models/user.ts
@@ -1,5 +1,6 @@
 import { QueryContext, ModelOptions } from 'objection';
-import Base from './base'
+import Base from './base';
+import Credential from './credential';
 import bcrypt from 'bcrypt';
 
 class User extends Base {
@@ -20,6 +21,17 @@ class User extends Base {
     }
   }
 
+  static relationMappings = () => ({
+    credentials: {
+      relation: Base.HasManyRelation,
+      modelClass: Credential,
+      join: {
+        from: 'users.id',
+        to: 'credentials.user_id',
+      },
+    }
+  })
+
   async generateHash() {
     this.password = await bcrypt.hash(this.password, 10);
   }
diff --git a/packages/backend/src/types/field.d.ts b/packages/backend/src/types/field.d.ts
new file mode 100644
index 00000000..b7d3f62e
--- /dev/null
+++ b/packages/backend/src/types/field.d.ts
@@ -0,0 +1,14 @@
+type Field = {
+  key: string,
+  label: string,
+  type: string,
+  required: boolean,
+  readOnly: boolean,
+  value: string,
+  placeholder: string,
+  description: string,
+  docUrl: string,
+  clickToCopy: boolean
+}
+
+export default Field;
diff --git a/yarn.lock b/yarn.lock
index 76aece98..fec5ec43 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -15110,6 +15110,11 @@ tweetnacl@^0.14.3, tweetnacl@~0.14.0:
   resolved "https://registry.yarnpkg.com/tweetnacl/-/tweetnacl-0.14.5.tgz#5ae68177f192d4456269d108afa93ff8743f4f64"
   integrity sha1-WuaBd/GS1EViadEIr6k/+HQ/T2Q=
 
+twitter-api-v2@1.6.0:
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/twitter-api-v2/-/twitter-api-v2-1.6.0.tgz#429a19aed338d2ccf17a0cd890e590b20bb6e768"
+  integrity sha512-MLpHYyw06Ch0FLYZ8JvX4HZethpXRRtUetYe4HtPhcQvJgukvS8xKc1CG1nSuNDVZyZ1KN9ps6W3nHRZVxm+qg==
+
 type-check@^0.4.0, type-check@~0.4.0:
   version "0.4.0"
   resolved "https://registry.yarnpkg.com/type-check/-/type-check-0.4.0.tgz#07b8203bfa7056c0657050e3ccd2c37730bab8f1"