Prize distribution for selecting wines.

Moved the same functionality out from lottery.js and simplified a bit.
Now the backend also sends with wines to pick from.
When hitting the controller we check that the user is the next user in
line.

api/controllers/prizeDistributionController.js

@@ -0,0 +1,90 @@
+const path = require("path");
+
+const prizeDistribution = require(path.join(__dirname, "../prizeDistribution"));
+const winner = require(path.join(__dirname, "../winner"));
+const message = require(path.join(__dirname, "../message"));
+
+const start = async (req, res) => {
+  const allWinners = await winners.allWinners();
+  if (allWinners.length === 0) {
+    return res.status(503).send({
+      message: "No winners left.",
+      success: false
+    });
+  }
+
+  const laterWinners = allWinners.slice(1);
+
+  return prizeDistribution
+    .notifyNextWinner()
+    .then(_ => message.sendInitialMessageToWinners(laterWinners))
+    .then(_ =>
+      res.send({
+        message: `Send link to first winner and notified everyone else.`,
+        success: true
+      })
+    )
+    .catch(error => {
+      const { statusCode, message } = error;
+
+      return res.status(statusCode || 500).send({
+        message: message || "Unexpected error occured while starting prize distribution.",
+        success: false
+      });
+    });
+};
+
+const getPrizesForWinnerById = (req, res) => {
+  const { id } = req.params;
+
+  return prizeDistribution
+    .verifyWinnerNextInLine(id)
+    .then(_ => lottery.allWines())
+    .then(wines =>
+      res.send({
+        wines: wines,
+        message: "Wines to select from",
+        success: true
+      })
+    )
+    .catch(error => {
+      const { statusCode, message } = error;
+
+      return res.status(statusCode || 500).send({
+        message: message || "Unexpected error occured while fetching prizes.",
+        success: false
+      });
+    });
+};
+
+const submitPrizeForWinnerById = async (req, res) => {
+  const { id } = req.params;
+  const { wine } = req.body;
+
+  const winner = await prizeDistribution.verifyWinnerNextInLine(id);
+  const prelotteryWine = await lottery.wineById(wine.id);
+
+  return prizeDistribution
+    .claimPrize(winner, prelotteryWine)
+    .then(_ => prizeDistribution.notifyNextWinner())
+    .then(_ =>
+      res.send({
+        message: `${winner.name} successfully claimed prize: ${wine.name}`,
+        success: true
+      })
+    )
+    .catch(error => {
+      const { statusCode, message } = error;
+
+      return res.status(statusCode || 500).send({
+        message: message || "Unexpected error occured while claiming prize.",
+        success: false
+      });
+    });
+};
+
+module.exports = {
+  start,
+  getPrizesForWinnerById,
+  submitPrizeForWinnerById
+};