guild upgrades, enum for quest ranks and quests now persist while clicking onto another tab

src/classes/Guild.ts

@@ -1,9 +1,36 @@
 export class Guild {
     gold: number;
     level: number;
+    displayUpgradeCost: number|string;
 
     constructor(level: number, gold: number) {
         this.gold = gold;
         this.level = level;
+        this.displayUpgradeCost = this.getUpgradeCost() ?? "Max level";
     }
-}
+
+    upgrade(): void {
+        const cost = this.getUpgradeCost();
+        if (cost === null) return;
+        if (this.gold < cost) return;
+        this.gold -= cost;
+        this.level += 1;
+        if (this.level > 7) {
+            this.displayUpgradeCost = "Max level";
+        }
+    }
+
+    getUpgradeCost(): number|null {
+        return upgradeCosts[this.level] ?? null;
+    }
+}
+
+const upgradeCosts = {
+    "1": 1000,
+    "2": 2500,
+    "3": 5000,
+    "4": 10000,
+    "5": 25000,
+    "6": 50000,
+    "7": 100000,
+} as {[index:string]: number}

src/classes/Quest.ts

@@ -1,26 +1,27 @@
 import type {Adventurer} from "@/classes/Adventurer";
+import type {QuestRank} from "@/classes/QuestRank";
 
 export class Quest {
     id: string;
+    rank: QuestRank;
     title:  string;
     text: string;
     adventurers: Array<Adventurer>;
     progressPoints: number;
     maxProgress: number;
     expReward: number;
+    goldReward: number;
 
-    constructor(id: string, title: string, text: string, maxProgress: number, expReward: number) {
+    constructor(id: string, rank: QuestRank, title: string, text: string, maxProgress: number, expReward: number, goldReward: number) {
         this.id = id;
+        this.rank = rank;
         this.title = title;
         this.text = text;
         this.maxProgress = maxProgress;
         this.expReward = expReward;
+        this.goldReward = goldReward;
         this.progressPoints = 0;
         this.adventurers = [];
     }
 
 }
-
-export function createRandomQuest(budget: number) {
-
-}

src/classes/QuestRank.ts

@@ -0,0 +1,13 @@
+export enum QuestRank {
+    S = "S",
+    A = "A",
+    B = "B",
+    C = "C",
+    D = "D",
+    E = "E",
+    F = "F",
+}
+
+export function getFromString(string: keyof typeof QuestRank): QuestRank {
+    return QuestRank[string];
+}