Add capsules update script

package.json

@@ -14,7 +14,8 @@
     "upcoming": "node scripts/upcoming.js",
     "launchpad": "node scripts/launchpad.js",
     "landpad": "node scripts/landpad.js",
-    "cores": "node scripts/cores.js"
+    "cores": "node scripts/cores.js",
+    "capsules": "node scripts/capsules.js"
   },
   "repository": {
     "type": "git",

scripts/capsules.js

@@ -0,0 +1,102 @@
+#!/usr/bin/env node
+
+/**
+ * This script updates capsule missions and landing counts
+ */
+
+const MongoClient = require('mongodb');
+
+// Created so we can use async await with requests, and
+// to use async sleep function inside the IIFE
+async function asyncForEach(array, callback) {
+  for (let index = 0; index < array.length; index += 1) {
+    // Allow await for nested async functions
+    // eslint-disable-next-line no-await-in-loop
+    await callback(array[index], index, array);
+  }
+}
+
+(async () => {
+  let client;
+  try {
+    client = await MongoClient.connect(process.env.MONGO_URL, { useNewUrlParser: true });
+  } catch (err) {
+    console.log(err.stack);
+    process.exit(1);
+  }
+
+  const col = client.db('spacex-api').collection('capsule');
+  const launch = client.db('spacex-api').collection('launch');
+
+  const capsules = [];
+  const data = await col.find({}).sort({ capsule_serial: 1 }).toArray();
+  data.forEach(capsule => {
+    capsules.push(capsule.capsule_serial);
+  });
+
+
+  const start = async () => {
+    await asyncForEach(capsules, async capsule => {
+      const landings = await launch.countDocuments({
+        upcoming: false,
+        'rocket.second_stage.payloads': {
+          $elemMatch: {
+            cap_serial: capsule,
+            flight_time_sec: { $exists: true },
+          },
+        },
+        launch_success: true,
+      });
+
+      const missions = [];
+      const launch_results = await launch.find({
+        upcoming: false,
+        'rocket.second_stage.payloads': {
+          $elemMatch: {
+            cap_serial: capsule,
+          },
+        },
+      }).project({
+        _id: 0,
+        flight_number: 1,
+        mission_name: 1,
+      }).sort({
+        flight_number: 1,
+      }).toArray();
+
+      launch_results.forEach(i => {
+        const mission = {
+          name: i.mission_name,
+          flight: i.flight_number,
+        };
+        missions.push(mission);
+      });
+
+      let reuse_count;
+      if (missions.length - 1 < 0) {
+        reuse_count = 0;
+      } else {
+        reuse_count = missions.length - 1;
+      }
+
+      console.log(capsule);
+      console.log(missions);
+      console.log(`Reuse Count: ${reuse_count}`);
+      console.log(`Landings: ${landings}`);
+
+      await col.updateOne({ capsule_serial: capsule }, {
+        $set: {
+          reuse_count,
+          landings,
+          missions,
+        },
+      });
+    });
+  };
+
+  await start();
+
+  if (client) {
+    client.close();
+  }
+})();