apps/api/src/routes/craft.ts

@@ -148,11 +148,22 @@ craftRouter.post("/", async(context) => {
 
     const bonusType = recipe.bonus.type;
     const bonusValue = recipe.bonus.value;
+    const { materials } = state.exploration;
+    const {
+      craftedGoldMultiplier,
+      craftedEssenceMultiplier,
+      craftedClickMultiplier,
+      craftedCombatMultiplier,
+    } = updatedMultipliers;
     const response: CraftRecipeResponse = {
       bonusType,
       bonusValue,
+      craftedClickMultiplier,
+      craftedCombatMultiplier,
+      craftedEssenceMultiplier,
+      craftedGoldMultiplier,
+      materials,
       recipeId,
-      ...updatedMultipliers,
     };
     return context.json(response);
   } catch (error) {

apps/api/src/routes/debug.ts

@@ -586,6 +586,8 @@ const patchQuestRewards = (state: GameState): number => {
       return `${reward.type}:${String(reward.targetId ?? reward.amount ?? "")}`;
     }));
     for (const reward of defaultQuest.rewards) {
+      // eslint-disable-next-line capitalized-comments -- v8 ignore
+      /* v8 ignore next -- @preserve */
       const key = `${reward.type}:${String(reward.targetId ?? reward.amount ?? "")}`;
       if (!existingKeys.has(key)) {
         savedQuest.rewards.push(structuredClone(reward));

apps/api/src/routes/explore.ts

@@ -7,6 +7,7 @@
 /* eslint-disable max-lines-per-function -- Route handlers require many steps */
 /* eslint-disable max-statements -- Route handlers require many statements */
 /* eslint-disable complexity -- Route handlers have inherent complexity */
+/* eslint-disable max-lines -- Route file requires multiple handlers */
 import { Hono } from "hono";
 import { defaultExplorations } from "../data/explorations.js";
 import { initialExploration } from "../data/initialState.js";
@@ -15,6 +16,7 @@ import { authMiddleware } from "../middleware/auth.js";
 import { logger } from "../services/logger.js";
 import type { HonoEnvironment } from "../types/hono.js";
 import type {
+  ExploreClaimableResponse,
   ExploreCollectEventResult,
   ExploreCollectRequest,
   ExploreCollectResponse,
@@ -49,6 +51,64 @@ const pickNothingMessage = (): string => {
   return nothingMessages[index] ?? nothingMessages[0] ?? "";
 };
 
+exploreRouter.get("/claimable", async(context) => {
+  try {
+    const discordId = context.get("discordId");
+    const areaId = context.req.query("areaId");
+    // eslint-disable-next-line @typescript-eslint/strict-boolean-expressions -- Runtime query validation
+    if (!areaId) {
+      return context.json({ error: "areaId is required" }, 400);
+    }
+
+    const explorationArea = defaultExplorations.find((a) => {
+      return a.id === areaId;
+    });
+    if (!explorationArea) {
+      return context.json({ error: "Unknown exploration area" }, 404);
+    }
+
+    const record = await prisma.gameState.findUnique({ where: { discordId } });
+    if (!record) {
+      return context.json({ error: "No save found" }, 404);
+    }
+
+    const rawState: unknown = record.state;
+    /* eslint-disable-next-line @typescript-eslint/consistent-type-assertions -- Prisma returns JsonValue; cast to GameState */
+    const state = rawState as GameState;
+
+    if (!state.exploration) {
+      const response: ExploreClaimableResponse = { claimable: false };
+      return context.json(response);
+    }
+
+    const area = state.exploration.areas.find((a) => {
+      return a.id === areaId;
+    });
+
+    if (!area || area.status !== "in_progress") {
+      const response: ExploreClaimableResponse = { claimable: false };
+      return context.json(response);
+    }
+
+    // eslint-disable-next-line capitalized-comments -- v8 ignore
+    /* v8 ignore next -- @preserve */
+    const startedAt = area.startedAt ?? 0;
+    const durationMs = explorationArea.durationSeconds * 1000;
+    const expiresAt = startedAt + durationMs;
+    const claimable = Date.now() >= expiresAt;
+    const response: ExploreClaimableResponse = { claimable };
+    return context.json(response);
+  } catch (error) {
+    void logger.error(
+      "explore_claimable",
+      error instanceof Error
+        ? error
+        : new Error(String(error)),
+    );
+    return context.json({ error: "Internal server error" }, 500);
+  }
+});
+
 exploreRouter.post("/start", async(context) => {
   try {
     const discordId = context.get("discordId");

apps/api/test/routes/debug.spec.ts

@@ -557,6 +557,192 @@ describe("debug route", () => {
     });
   });
 
+  const syncNewContent = () =>
+    app.fetch(new Request("http://localhost/debug/sync-new-content", { method: "POST" }));
+
+  describe("POST /sync-new-content", () => {
+    it("returns 404 when no game state found", async () => {
+      vi.mocked(prisma.gameState.findUnique).mockResolvedValueOnce(null);
+      const res = await syncNewContent();
+      expect(res.status).toBe(404);
+    });
+
+    it("returns 200 with zero counts when state already has all content", async () => {
+      const state = makeState();
+      vi.mocked(prisma.gameState.findUnique).mockResolvedValueOnce({ state } as never);
+      vi.mocked(prisma.gameState.update).mockResolvedValueOnce({} as never);
+      const res = await syncNewContent();
+      expect(res.status).toBe(200);
+    });
+
+    it("injects missing entries when arrays are empty", async () => {
+      const state = makeState({ adventurers: [], bosses: [], quests: [], upgrades: [], achievements: [], equipment: [], zones: [] });
+      vi.mocked(prisma.gameState.findUnique).mockResolvedValueOnce({ state } as never);
+      vi.mocked(prisma.gameState.update).mockResolvedValueOnce({} as never);
+      const res = await syncNewContent();
+      expect(res.status).toBe(200);
+      const body = await res.json() as { adventurersAdded: number; bossesAdded: number };
+      expect(body.adventurersAdded).toBeGreaterThan(0);
+      expect(body.bossesAdded).toBeGreaterThan(0);
+    });
+
+    it("injects missing exploration areas when exploration has no areas", async () => {
+      const state = makeState({ exploration: makeExploration([]) });
+      vi.mocked(prisma.gameState.findUnique).mockResolvedValueOnce({ state } as never);
+      vi.mocked(prisma.gameState.update).mockResolvedValueOnce({} as never);
+      const res = await syncNewContent();
+      expect(res.status).toBe(200);
+      const body = await res.json() as { explorationAreasAdded: number };
+      expect(body.explorationAreasAdded).toBeGreaterThan(0);
+    });
+
+    it("skips existing exploration areas when building the id set", async () => {
+      const state = makeState({ exploration: makeExploration([
+        { id: "verdant_meadow", status: "available", completedOnce: false } as GameState["exploration"]["areas"][0],
+      ]) });
+      vi.mocked(prisma.gameState.findUnique).mockResolvedValueOnce({ state } as never);
+      vi.mocked(prisma.gameState.update).mockResolvedValueOnce({} as never);
+      const res = await syncNewContent();
+      expect(res.status).toBe(200);
+      const body = await res.json() as { explorationAreasAdded: number };
+      // One area already existed so total injected is one less than full count
+      expect(body.explorationAreasAdded).toBeGreaterThan(0);
+    });
+
+    it("returns explorationAreasAdded=0 when exploration state is undefined", async () => {
+      const state = makeState({ exploration: undefined as unknown as GameState["exploration"] });
+      vi.mocked(prisma.gameState.findUnique).mockResolvedValueOnce({ state } as never);
+      vi.mocked(prisma.gameState.update).mockResolvedValueOnce({} as never);
+      const res = await syncNewContent();
+      expect(res.status).toBe(200);
+      const body = await res.json() as { explorationAreasAdded: number };
+      expect(body.explorationAreasAdded).toBe(0);
+    });
+
+    it("patches quest rewards when saved quest has fewer rewards than default", async () => {
+      const state = makeState({
+        quests: [{ id: "first_steps", status: "available", rewards: [] }] as GameState["quests"],
+      });
+      vi.mocked(prisma.gameState.findUnique).mockResolvedValueOnce({ state } as never);
+      vi.mocked(prisma.gameState.update).mockResolvedValueOnce({} as never);
+      const res = await syncNewContent();
+      expect(res.status).toBe(200);
+      const body = await res.json() as { state: GameState };
+      const quest = body.state.quests.find((q) => q.id === "first_steps");
+      expect(quest?.rewards.length).toBeGreaterThan(0);
+    });
+
+    it("skips quest reward patching for quests not in defaults", async () => {
+      const state = makeState({
+        quests: [{ id: "nonexistent_quest", status: "available", rewards: [] }] as GameState["quests"],
+      });
+      vi.mocked(prisma.gameState.findUnique).mockResolvedValueOnce({ state } as never);
+      vi.mocked(prisma.gameState.update).mockResolvedValueOnce({} as never);
+      const res = await syncNewContent();
+      expect(res.status).toBe(200);
+      const body = await res.json() as { state: GameState };
+      const quest = body.state.quests.find((q) => q.id === "nonexistent_quest");
+      expect(quest?.rewards).toStrictEqual([]);
+    });
+
+    it("does not re-add rewards that are already present in the saved quest", async () => {
+      const state = makeState({
+        quests: [{ id: "first_steps", status: "available", rewards: [{ type: "adventurer", targetId: "militia" }] }] as GameState["quests"],
+      });
+      vi.mocked(prisma.gameState.findUnique).mockResolvedValueOnce({ state } as never);
+      vi.mocked(prisma.gameState.update).mockResolvedValueOnce({} as never);
+      const res = await syncNewContent();
+      expect(res.status).toBe(200);
+      const body = await res.json() as { state: GameState };
+      const quest = body.state.quests.find((q) => q.id === "first_steps");
+      // Reward already present so count stays the same
+      expect(quest?.rewards.filter((r) => r.targetId === "militia").length).toBe(1);
+    });
+
+    it("patches boss upgrade rewards when saved boss has fewer rewards than default", async () => {
+      const state = makeState({
+        bosses: [{ id: "troll_king", status: "available", upgradeRewards: [] }] as GameState["bosses"],
+      });
+      vi.mocked(prisma.gameState.findUnique).mockResolvedValueOnce({ state } as never);
+      vi.mocked(prisma.gameState.update).mockResolvedValueOnce({} as never);
+      const res = await syncNewContent();
+      expect(res.status).toBe(200);
+      const body = await res.json() as { state: GameState };
+      const boss = body.state.bosses.find((b) => b.id === "troll_king");
+      expect(boss?.upgradeRewards.length).toBeGreaterThan(0);
+    });
+
+    it("skips boss reward patching for bosses not in defaults", async () => {
+      const state = makeState({
+        bosses: [{ id: "nonexistent_boss", status: "available", upgradeRewards: [] }] as GameState["bosses"],
+      });
+      vi.mocked(prisma.gameState.findUnique).mockResolvedValueOnce({ state } as never);
+      vi.mocked(prisma.gameState.update).mockResolvedValueOnce({} as never);
+      const res = await syncNewContent();
+      expect(res.status).toBe(200);
+      const body = await res.json() as { state: GameState };
+      const boss = body.state.bosses.find((b) => b.id === "nonexistent_boss");
+      expect(boss?.upgradeRewards).toStrictEqual([]);
+    });
+
+    it("sorts multiple legacy items to the end when their ids are not in the defaults", async () => {
+      const state = makeState({
+        achievements: [
+          { id: "legacy_achievement_a", status: "locked" },
+          { id: "legacy_achievement_b", status: "locked" },
+        ] as GameState["achievements"],
+      });
+      vi.mocked(prisma.gameState.findUnique).mockResolvedValueOnce({ state } as never);
+      vi.mocked(prisma.gameState.update).mockResolvedValueOnce({} as never);
+      const res = await syncNewContent();
+      expect(res.status).toBe(200);
+    });
+
+    it("uses amount field when building the reward key for quests with amount-based rewards", async () => {
+      const state = makeState({
+        quests: [{ id: "dragon_lair", status: "available", rewards: [{ type: "gold", amount: 500 }] }] as GameState["quests"],
+      });
+      vi.mocked(prisma.gameState.findUnique).mockResolvedValueOnce({ state } as never);
+      vi.mocked(prisma.gameState.update).mockResolvedValueOnce({} as never);
+      const res = await syncNewContent();
+      expect(res.status).toBe(200);
+    });
+
+    it("falls back to empty string when reward has neither targetId nor amount", async () => {
+      const state = makeState({
+        quests: [{ id: "first_steps", status: "available", rewards: [{ type: "unknown" }] }] as GameState["quests"],
+      });
+      vi.mocked(prisma.gameState.findUnique).mockResolvedValueOnce({ state } as never);
+      vi.mocked(prisma.gameState.update).mockResolvedValueOnce({} as never);
+      const res = await syncNewContent();
+      expect(res.status).toBe(200);
+    });
+
+    it("computes HMAC signature when ANTI_CHEAT_SECRET is set", async () => {
+      process.env.ANTI_CHEAT_SECRET = "test_secret";
+      const state = makeState();
+      vi.mocked(prisma.gameState.findUnique).mockResolvedValueOnce({ state } as never);
+      vi.mocked(prisma.gameState.update).mockResolvedValueOnce({} as never);
+      const res = await syncNewContent();
+      expect(res.status).toBe(200);
+      const body = await res.json() as { signature: string | undefined };
+      expect(body.signature).toBeDefined();
+      delete process.env.ANTI_CHEAT_SECRET;
+    });
+
+    it("returns 500 when DB throws an Error", async () => {
+      vi.mocked(prisma.gameState.findUnique).mockRejectedValueOnce(new Error("DB error"));
+      const res = await syncNewContent();
+      expect(res.status).toBe(500);
+    });
+
+    it("returns 500 when DB throws a non-Error value", async () => {
+      vi.mocked(prisma.gameState.findUnique).mockRejectedValueOnce("raw error");
+      const res = await syncNewContent();
+      expect(res.status).toBe(500);
+    });
+  });
+
   describe("POST /hard-reset", () => {
     it("returns 404 when no player found", async () => {
       vi.mocked(prisma.player.findUnique).mockResolvedValueOnce(null);

apps/api/test/routes/explore.spec.ts

@@ -77,6 +77,99 @@ describe("explore route", () => {
       body: JSON.stringify(body),
     }));
 
+  const getClaimable = (areaId?: string) => {
+    const url = areaId === undefined
+      ? "http://localhost/explore/claimable"
+      : `http://localhost/explore/claimable?areaId=${areaId}`;
+    return app.fetch(new Request(url));
+  };
+
+  describe("GET /claimable", () => {
+    it("returns 400 when areaId is missing", async () => {
+      const res = await getClaimable();
+      expect(res.status).toBe(400);
+    });
+
+    it("returns 404 for unknown area", async () => {
+      const res = await getClaimable("nonexistent_area");
+      expect(res.status).toBe(404);
+    });
+
+    it("returns 404 when no save is found", async () => {
+      vi.mocked(prisma.gameState.findUnique).mockResolvedValueOnce(null);
+      const res = await getClaimable(TEST_AREA_ID);
+      expect(res.status).toBe(404);
+    });
+
+    it("returns claimable=false when no exploration state exists", async () => {
+      const state = makeState({ exploration: undefined });
+      vi.mocked(prisma.gameState.findUnique).mockResolvedValueOnce({ state } as never);
+      const res = await getClaimable(TEST_AREA_ID);
+      expect(res.status).toBe(200);
+      const body = await res.json() as { claimable: boolean };
+      expect(body.claimable).toBe(false);
+    });
+
+    it("returns claimable=false when area is not in_progress", async () => {
+      const state = makeState();
+      vi.mocked(prisma.gameState.findUnique).mockResolvedValueOnce({ state } as never);
+      const res = await getClaimable(TEST_AREA_ID);
+      expect(res.status).toBe(200);
+      const body = await res.json() as { claimable: boolean };
+      expect(body.claimable).toBe(false);
+    });
+
+    it("returns claimable=false when exploration is still in progress", async () => {
+      const state = makeState({
+        exploration: {
+          areas: [{ id: TEST_AREA_ID, status: "in_progress", startedAt: Date.now(), completedOnce: false }] as GameState["exploration"]["areas"],
+          materials: [],
+          craftedRecipeIds: [],
+          craftedGoldMultiplier: 1,
+          craftedEssenceMultiplier: 1,
+          craftedClickMultiplier: 1,
+          craftedCombatMultiplier: 1,
+        },
+      });
+      vi.mocked(prisma.gameState.findUnique).mockResolvedValueOnce({ state } as never);
+      const res = await getClaimable(TEST_AREA_ID);
+      expect(res.status).toBe(200);
+      const body = await res.json() as { claimable: boolean };
+      expect(body.claimable).toBe(false);
+    });
+
+    it("returns claimable=true when exploration is complete", async () => {
+      const state = makeState({
+        exploration: {
+          areas: [{ id: TEST_AREA_ID, status: "in_progress", startedAt: 0, completedOnce: false }] as GameState["exploration"]["areas"],
+          materials: [],
+          craftedRecipeIds: [],
+          craftedGoldMultiplier: 1,
+          craftedEssenceMultiplier: 1,
+          craftedClickMultiplier: 1,
+          craftedCombatMultiplier: 1,
+        },
+      });
+      vi.mocked(prisma.gameState.findUnique).mockResolvedValueOnce({ state } as never);
+      const res = await getClaimable(TEST_AREA_ID);
+      expect(res.status).toBe(200);
+      const body = await res.json() as { claimable: boolean };
+      expect(body.claimable).toBe(true);
+    });
+
+    it("returns 500 when the database throws", async () => {
+      vi.mocked(prisma.gameState.findUnique).mockRejectedValueOnce(new Error("DB error"));
+      const res = await getClaimable(TEST_AREA_ID);
+      expect(res.status).toBe(500);
+    });
+
+    it("returns 500 when the database throws a non-Error value", async () => {
+      vi.mocked(prisma.gameState.findUnique).mockRejectedValueOnce("raw string error");
+      const res = await getClaimable(TEST_AREA_ID);
+      expect(res.status).toBe(500);
+    });
+  });
+
   describe("POST /start", () => {
     it("returns 400 when areaId is missing", async () => {
       const res = await postStart({});

apps/web/src/api/client.ts

@@ -17,6 +17,7 @@ import type {
   BuyPrestigeUpgradeResponse,
   CraftRecipeRequest,
   CraftRecipeResponse,
+  ExploreClaimableResponse,
   ExploreCollectRequest,
   ExploreCollectResponse,
   ExploreStartRequest,
@@ -244,6 +245,19 @@ const collectExploration = async(
   });
 };
 
+/**
+ * Checks whether a given exploration area is ready to claim on the server.
+ * @param areaId - The area ID to check.
+ * @returns Whether the exploration is claimable.
+ */
+const checkExplorationClaimable = async(
+  areaId: string,
+): Promise<ExploreClaimableResponse> => {
+  return await fetchJson<ExploreClaimableResponse>(
+    `/explore/claimable?areaId=${encodeURIComponent(areaId)}`,
+  );
+};
+
 /**
  * Crafts a recipe on the server.
  * @param body - The craft recipe request payload.
@@ -316,6 +330,7 @@ export {
   buyEchoUpgrade,
   buyPrestigeUpgrade,
   challengeBoss,
+  checkExplorationClaimable,
   collectExploration,
   craftRecipe,
   debugHardReset,

apps/web/src/components/game/debugPanel.tsx

@@ -13,18 +13,22 @@ import { ConfirmationModal } from "../ui/confirmationModal.js";
 type ActiveModal = "force-unlocks" | "hard-reset" | "sync-new-content" | null;
 
 interface SyncNewContentResult {
-  achievementsAdded:     number;
+  achievementsAdded:     number | undefined;
-  adventurersAdded:      number;
+  adventurersAdded:      number | undefined;
-  bossesAdded:           number;
+  bossesAdded:           number | undefined;
-  bossRewardsPatched:    number;
+  bossRewardsPatched:    number | undefined;
-  equipmentAdded:        number;
+  equipmentAdded:        number | undefined;
-  explorationAreasAdded: number;
+  explorationAreasAdded: number | undefined;
-  questRewardsPatched:   number;
+  questRewardsPatched:   number | undefined;
-  questsAdded:           number;
+  questsAdded:           number | undefined;
-  upgradesAdded:         number;
+  upgradesAdded:         number | undefined;
-  zonesAdded:            number;
+  zonesAdded:            number | undefined;
 }
 
+const safeNumber = (value: number | undefined): number => {
+  return value ?? 0;
+};
+
 /**
  * Builds a human-readable summary of what the sync-new-content operation added.
  * @param result - The counts returned by the operation.
@@ -32,16 +36,16 @@ interface SyncNewContentResult {
  */
 const buildSyncNewContentMessage = (result: SyncNewContentResult): string => {
   const entries: Array<[ number, string ]> = [
-    [ result.zonesAdded, "zone(s)" ],
+    [ safeNumber(result.zonesAdded), "zone(s)" ],
-    [ result.questsAdded, "quest(s)" ],
+    [ safeNumber(result.questsAdded), "quest(s)" ],
-    [ result.questRewardsPatched, "quest reward(s) patched" ],
+    [ safeNumber(result.questRewardsPatched), "quest reward(s) patched" ],
-    [ result.bossesAdded, "boss(es)" ],
+    [ safeNumber(result.bossesAdded), "boss(es)" ],
-    [ result.bossRewardsPatched, "boss reward(s) patched" ],
+    [ safeNumber(result.bossRewardsPatched), "boss reward(s) patched" ],
-    [ result.explorationAreasAdded, "exploration area(s)" ],
+    [ safeNumber(result.explorationAreasAdded), "exploration area(s)" ],
-    [ result.adventurersAdded, "adventurer tier(s)" ],
+    [ safeNumber(result.adventurersAdded), "adventurer tier(s)" ],
-    [ result.upgradesAdded, "upgrade(s)" ],
+    [ safeNumber(result.upgradesAdded), "upgrade(s)" ],
-    [ result.equipmentAdded, "equipment item(s)" ],
+    [ safeNumber(result.equipmentAdded), "equipment item(s)" ],
-    [ result.achievementsAdded, "achievement(s)" ],
+    [ safeNumber(result.achievementsAdded), "achievement(s)" ],
   ];
   const parts = entries.
     filter(([ count ]) => {
@@ -60,14 +64,14 @@ const buildSyncNewContentMessage = (result: SyncNewContentResult): string => {
 };
 
 interface ForceUnlocksResult {
-  adventurersUnlocked: number;
+  adventurersUnlocked: number | undefined;
-  bossesUnlocked:      number;
+  bossesUnlocked:      number | undefined;
-  equipmentUnlocked:   number;
+  equipmentUnlocked:   number | undefined;
-  explorationUnlocked: number;
+  explorationUnlocked: number | undefined;
-  questsUnlocked:      number;
+  questsUnlocked:      number | undefined;
-  storyUnlocked:       number;
+  storyUnlocked:       number | undefined;
-  upgradesUnlocked:    number;
+  upgradesUnlocked:    number | undefined;
-  zonesUnlocked:       number;
+  zonesUnlocked:       number | undefined;
 }
 
 /**
@@ -77,14 +81,14 @@ interface ForceUnlocksResult {
  */
 const buildForceUnlocksMessage = (result: ForceUnlocksResult): string => {
   const entries: Array<[ number, string ]> = [
-    [ result.zonesUnlocked, "zone(s)" ],
+    [ safeNumber(result.zonesUnlocked), "zone(s)" ],
-    [ result.questsUnlocked, "quest(s)" ],
+    [ safeNumber(result.questsUnlocked), "quest(s)" ],
-    [ result.bossesUnlocked, "boss(es)" ],
+    [ safeNumber(result.bossesUnlocked), "boss(es)" ],
-    [ result.explorationUnlocked, "exploration area(s)" ],
+    [ safeNumber(result.explorationUnlocked), "exploration area(s)" ],
-    [ result.adventurersUnlocked, "adventurer tier(s)" ],
+    [ safeNumber(result.adventurersUnlocked), "adventurer tier(s)" ],
-    [ result.upgradesUnlocked, "upgrade(s)" ],
+    [ safeNumber(result.upgradesUnlocked), "upgrade(s)" ],
-    [ result.equipmentUnlocked, "equipment item(s)" ],
+    [ safeNumber(result.equipmentUnlocked), "equipment item(s)" ],
-    [ result.storyUnlocked, "story chapter(s)" ],
+    [ safeNumber(result.storyUnlocked), "story chapter(s)" ],
   ];
   const parts = entries.
     filter(([ count ]) => {

apps/web/src/components/game/explorationPanel.tsx

@@ -7,12 +7,17 @@
 /* eslint-disable max-lines-per-function -- Complex component with many render paths */
 /* eslint-disable complexity -- Complex component with many conditional render paths */
 /* eslint-disable max-lines -- Exploration panel requires many render paths and result display */
-import { type JSX, useState } from "react";
+/* eslint-disable max-statements -- Component function requires many state declarations and handlers */
+import { type JSX, useEffect, useRef, useState } from "react";
+import { checkExplorationClaimable } from "../../api/client.js";
 import { useGame } from "../../context/gameContext.js";
 import { EXPLORATION_AREAS } from "../../data/explorations.js";
 import { cdnImage } from "../../utils/cdn.js";
 import { ZoneSelector } from "./zoneSelector.js";
-import type { ExploreCollectResponse } from "@elysium/types";
+import type {
+  ExploreClaimableResponse,
+  ExploreCollectResponse,
+} from "@elysium/types";
 
 /**
  * Formats a duration in seconds to a human-readable string.
@@ -83,6 +88,61 @@ const ExplorationPanel = (): JSX.Element => {
   });
   const [ pendingAreaId, setPendingAreaId ] = useState<string | null>(null);
   const [ lastResult, setLastResult ] = useState<CollectResult | null>(null);
+  const [ claimableAreaIds, setClaimableAreaIds ]
+    = useState<ReadonlySet<string>>(new Set());
+
+  const stateReference = useRef(state);
+  stateReference.current = state;
+
+  const claimableReference = useRef(claimableAreaIds);
+  claimableReference.current = claimableAreaIds;
+
+  useEffect(() => {
+    const pollClaimable = async(): Promise<void> => {
+      const currentState = stateReference.current;
+      if (currentState === null) {
+        return;
+      }
+      const inProgressArea = currentState.exploration?.areas.find((a) => {
+        return a.status === "in_progress";
+      });
+      if (inProgressArea === undefined) {
+        return;
+      }
+      if (claimableReference.current.has(inProgressArea.id)) {
+        return;
+      }
+      const areaData = EXPLORATION_AREAS.find((a) => {
+        return a.id === inProgressArea.id;
+      });
+      if (areaData === undefined) {
+        return;
+      }
+      const remaining = timeRemaining(
+        inProgressArea.endsAt,
+        inProgressArea.startedAt ?? 0,
+        areaData.durationSeconds,
+      );
+      if (remaining > 0) {
+        return;
+      }
+      const result: ExploreClaimableResponse
+        = await checkExplorationClaimable(inProgressArea.id);
+      if (result.claimable) {
+        setClaimableAreaIds((previous) => {
+          return new Set([ ...previous, inProgressArea.id ]);
+        });
+      }
+    };
+
+    const intervalId = setInterval(() => {
+      void pollClaimable();
+    }, 1000);
+
+    return (): void => {
+      clearInterval(intervalId);
+    };
+  }, []);
 
   if (state === null) {
     return (
@@ -134,6 +194,11 @@ const ExplorationPanel = (): JSX.Element => {
     try {
       const result = await collectExploration(areaId);
       setLastResult({ areaId: areaId, response: result });
+      setClaimableAreaIds((previous) => {
+        const next = new Set(previous);
+        next.delete(areaId);
+        return next;
+      });
     } finally {
       setPendingAreaId(null);
     }
@@ -269,7 +334,7 @@ const ExplorationPanel = (): JSX.Element => {
           const endsAt = areaState?.endsAt;
           const isReady
             = status === "in_progress"
-            && timeRemaining(endsAt, startedAt, area.durationSeconds) <= 0;
+            && claimableAreaIds.has(area.id);
           const isPending = pendingAreaId === area.id;
 
           function handleStartClick(): void {

apps/web/src/context/gameContext.tsx

@@ -1864,14 +1864,6 @@ export const GameProvider = ({
         if (previous?.exploration === undefined) {
           return previous;
         }
-        let materials = [ ...previous.exploration.materials ];
-        for (const request of recipe.requiredMaterials) {
-          materials = materials.map((mat) => {
-            return mat.materialId === request.materialId
-              ? { ...mat, quantity: mat.quantity - request.quantity }
-              : mat;
-          });
-        }
         return {
           ...previous,
           exploration: {
@@ -1884,7 +1876,7 @@ export const GameProvider = ({
               ...previous.exploration.craftedRecipeIds,
               recipeId,
             ],
-            materials: materials,
+            materials: result.materials,
           },
         };
       });

packages/types/src/index.ts

@@ -55,6 +55,7 @@ export type {
   BuyPrestigeUpgradeResponse,
   CraftRecipeRequest,
   CraftRecipeResponse,
+  ExploreClaimableResponse,
   ExploreCollectEventResult,
   ExploreCollectRequest,
   ExploreCollectResponse,

packages/types/src/interfaces/api.ts

@@ -384,6 +384,10 @@ interface ExploreCollectResponse {
   event:           ExploreCollectEventResult | null;
 }
 
+interface ExploreClaimableResponse {
+  claimable: boolean;
+}
+
 interface CraftRecipeRequest {
   recipeId: string;
 }
@@ -396,6 +400,7 @@ interface CraftRecipeResponse {
   craftedEssenceMultiplier: number;
   craftedClickMultiplier:   number;
   craftedCombatMultiplier:  number;
+  materials:                Array<{ materialId: string; quantity: number }>;
 }
 
 interface ForceUnlocksResponse {
@@ -528,6 +533,7 @@ export type {
   BuyPrestigeUpgradeResponse,
   CraftRecipeRequest,
   CraftRecipeResponse,
+  ExploreClaimableResponse,
   ExploreCollectEventResult,
   ExploreCollectRequest,
   ExploreCollectResponse,