Refaktor, rozdělení api, zpřehlednění kódu

server/src/routes/foodRoutes.ts

@@ -0,0 +1,113 @@
+import express from "express";
+import { getLogin, getTrusted } from "../auth";
+import { getDateForWeekIndex, addChoice, removeChoices, removeChoice, updateDepartureTime, getToday } from "../service";
+import { getDayOfWeekIndex, parseToken } from "../utils";
+import { getWebsocket } from "../websocket";
+
+/**
+ * Ověří a vrátí index dne v týdnu z požadavku, za předpokladu, že byl předán, a je zároveň
+ * roven nebo vyšší indexu dnešního dne.
+ * 
+ * @param req request
+ * @returns index dne v týdnu
+ */
+const parseValidateFutureDayIndex = (req: any) => {
+    if (req.body.dayIndex == null) {
+        throw Error(`Nebyl předán index dne v týdnu.`);
+    }
+    const todayDayIndex = getDayOfWeekIndex(getToday());
+    const dayIndex = parseInt(req.body.dayIndex);
+    if (isNaN(dayIndex)) {
+        throw Error(`Neplatný index dne v týdnu: ${req.body.dayIndex}`);
+    }
+    if (dayIndex < todayDayIndex) {
+        throw Error(`Předaný index dne v týdnu (${dayIndex}) nesmí být nižší než dnešní den (${todayDayIndex})`);
+    }
+    return dayIndex;
+}
+
+const router = express.Router();
+
+router.post("/addChoice", async (req, res, next) => {
+    const login = getLogin(parseToken(req));
+    const trusted = getTrusted(parseToken(req));
+    if (req.body.locationIndex > -1) {
+        let date = undefined;
+        if (req.body.dayIndex != null) {
+            let dayIndex;
+            try {
+                dayIndex = parseValidateFutureDayIndex(req);
+            } catch (e: any) {
+                return res.status(400).json({ error: e.message });
+            }
+            date = getDateForWeekIndex(dayIndex);
+        }
+        try {
+            const data = await addChoice(login, trusted, req.body.locationIndex, req.body.foodIndex, date);
+            getWebsocket().emit("message", data);
+            return res.status(200).json(data);
+        } catch (e: any) { next(e) }
+    }
+    return res.status(400); // TODO přidat popis chyby
+});
+
+router.post("/removeChoices", async (req, res, next) => {
+    const login = getLogin(parseToken(req));
+    const trusted = getTrusted(parseToken(req));
+    let date = undefined;
+    if (req.body.dayIndex != null) {
+        let dayIndex;
+        try {
+            dayIndex = parseValidateFutureDayIndex(req);
+        } catch (e: any) {
+            return res.status(400).json({ error: e.message });
+        }
+        date = getDateForWeekIndex(dayIndex);
+    }
+    try {
+        const data = await removeChoices(login, trusted, req.body.locationIndex, date);
+        getWebsocket().emit("message", data);
+        res.status(200).json(data);
+    } catch (e: any) { next(e) }
+});
+
+router.post("/removeChoice", async (req, res, next) => {
+    const login = getLogin(parseToken(req));
+    const trusted = getTrusted(parseToken(req));
+    let date = undefined;
+    if (req.body.dayIndex != null) {
+        let dayIndex;
+        try {
+            dayIndex = parseValidateFutureDayIndex(req);
+        } catch (e: any) {
+            return res.status(400).json({ error: e.message });
+        }
+        date = getDateForWeekIndex(dayIndex);
+    }
+    try {
+        const data = await removeChoice(login, trusted, req.body.locationIndex, req.body.foodIndex, date);
+        getWebsocket().emit("message", data);
+        res.status(200).json(data);
+    } catch (e: any) { next(e) }
+});
+
+router.post("/changeDepartureTime", async (req, res, next) => {
+    const login = getLogin(parseToken(req));
+    let date = undefined;
+    if (req.body.dayIndex != null) {
+        let dayIndex;
+        try {
+            dayIndex = parseValidateFutureDayIndex(req);
+        } catch (e: any) {
+            return res.status(400).json({ error: e.message });
+        }
+        date = getDateForWeekIndex(dayIndex);
+    }
+    try {
+        const data = await updateDepartureTime(login, req.body?.time, date);
+        getWebsocket().emit("message", data);
+        res.status(200).json(data);
+    } catch (e: any) { next(e) }
+});
+
+export default router;