Fabo/simplify queries (#108)

* simplified db queries

Conflicts:
	lib/luniedb-source.js
	lib/queries.js

* switched to yarn

* clean up

* clean up

lib/luniedb-source.js

@@ -1,6 +1,5 @@
 const { RESTDataSource } = require('apollo-datasource-rest')
 const config = require('../config')
-const queries = require('./queries')
 const networksLocal = require('../data/networks-local.js')
 const testnet = networksLocal['local-cosmos-hub-testnet']
 
@@ -15,20 +14,28 @@ class LunieDBAPI extends RESTDataSource {
     request.headers.set('x-hasura-admin-secret', config.hasura_admin_key)
   }
 
-  async getData(type, selection = '') {
+  async getData(query) {
     const data = await this.post('', {
-      query:
-        typeof queries[type] !== 'undefined' ? queries[type](selection) : ''
+      query
     })
     if (data.errors) {
       throw new Error(data.errors.map(({ message }) => message).join('\n'))
     }
-    return data.data[type]
+    return data.data
   }
 
   async getMaintenance() {
-    const response = await this.getData('maintenance')
-    return response
+    const { maintenance } = await this.getData(`
+    query {
+      maintenance {
+        id
+        message
+        show
+        type
+      }
+    }
+  `)
+    return maintenance
   }
 
   async getValidatorInfoByAddress(validatorId, networkID) {
@@ -39,19 +46,30 @@ class LunieDBAPI extends RESTDataSource {
     const selection = networkID
       ? `(where: {operator_address: {_eq: "${validatorId}"}})`
       : ''
-    return await this.getData(
-      networkID.replace(/-/g, '_') + '_validatorprofiles',
-      selection
-    )
+    const schema = networkID.replace(/-/g, '_')
+    return await this.getData(`
+    query {
+      ${schema}_validatorprofiles${selection}  {
+        operator_address
+        picture
+      }
+    }
+  `)
   }
 
   async getValidatorsInfo(networkID) {
     if (networkID === testnet.id) {
       return {}
     }
-    return await this.getData(
-      networkID.replace(/-/g, '_') + '_validatorprofiles'
-    )
+    const schema = networkID.replace(/-/g, '_')
+    return await this.getData(`
+    query {
+      ${schema}_validatorprofiles  {
+        operator_address
+        picture
+      }
+    }
+  `)
   }
 }