/* eslint-disable max-lines-per-function -- Test suites naturally have many cases */
/* eslint-disable max-lines -- Test suites naturally have many cases */
/* eslint-disable @typescript-eslint/consistent-type-assertions -- Tests build minimal state objects */
import { beforeEach, describe, expect, it, vi } from "vitest";
import { Hono } from "hono";
import type { GameState } from "@elysium/types";

vi.mock("../../src/db/client.js", () => ({
  prisma: {
    gameState: { findUnique: vi.fn(), update: vi.fn() },
  },
}));

vi.mock("../../src/middleware/auth.js", () => ({
  authMiddleware: vi.fn(async (c: { set: (key: string, value: string) => void }, next: () => Promise<void>) => {
    c.set("discordId", "test_discord_id");
    await next();
  }),
}));

vi.mock("../../src/services/logger.js", () => ({
  logger: {
    error:  vi.fn().mockResolvedValue(undefined),
    metric: vi.fn().mockResolvedValue(undefined),
  },
}));

const DISCORD_ID = "test_discord_id";

const makeSiring = (overrides: Record<string, unknown> = {}) => ({
  count:                0,
  ichor:                0,
  productionMultiplier: 1,
  purchasedUpgradeIds:  [] as Array<string>,
  ...overrides,
});

const makeAwakening = (overrides: Record<string, unknown> = {}) => ({
  count:                               0,
  purchasedUpgradeIds:                 [] as Array<string>,
  soulShards:                          0,
  soulShardsBloodMultiplier:           1,
  soulShardsCombatMultiplier:          1,
  soulShardsMetaMultiplier:            1,
  soulShardsSiringIchorMultiplier:     1,
  soulShardsSiringThresholdMultiplier: 1,
  ...overrides,
});

const makeVampireState = (overrides: Record<string, unknown> = {}) => ({
  achievements:       [] as Array<{ id: string; unlockedAt: number | null; reward: unknown }>,
  awakening:          makeAwakening(),
  baseClickPower:     1,
  bosses:             [] as Array<{ id: string; status: string }>,
  equipment:          [] as Array<{ id: string; owned: boolean; equipped: boolean }>,
  eternalSovereignty: { count: 0 },
  exploration:        {
    areas:                   [] as Array<{ id: string; status: string }>,
    craftedBloodMultiplier:  1,
    craftedCombatMultiplier: 1,
    craftedIchorMultiplier:  1,
    craftedRecipeIds:        [] as Array<string>,
    materials:               [] as Array<{ materialId: string; quantity: number }>,
  },
  lastTickAt:              0,
  lifetimeBloodEarned:     0,
  lifetimeBossesDefeated:  0,
  lifetimeQuestsCompleted: 0,
  quests:                  [] as Array<{ id: string; status: string }>,
  siring:                  makeSiring(),
  thralls:                 [] as Array<{ id: string; count: number }>,
  totalBloodEarned:        0,
  upgrades:                [] as Array<{ id: string; purchased: boolean }>,
  zones:                   [] as Array<{ id: string; status: string }>,
  ...overrides,
});

const makeState = (overrides: Partial<GameState> = {}): GameState => ({
  player:       { discordId: DISCORD_ID, username: "u", discriminator: "0", avatar: null, totalGoldEarned: 0, totalClicks: 0, characterName: "T" },
  resources:    { gold: 0, essence: 0, crystals: 0, runestones: 0 },
  adventurers:  [],
  upgrades:     [],
  quests:       [],
  bosses:       [],
  equipment:    [],
  achievements: [],
  zones:        [],
  exploration:  { areas: [], materials: [], craftedRecipeIds: [], craftedGoldMultiplier: 1, craftedEssenceMultiplier: 1, craftedClickMultiplier: 1, craftedCombatMultiplier: 1 },
  companions:   { unlockedCompanionIds: [], activeCompanionId: null },
  prestige:     { count: 0, runestones: 0, productionMultiplier: 1, purchasedUpgradeIds: [] },
  baseClickPower: 1,
  lastTickAt:   0,
  schemaVersion: 1,
  ...overrides,
} as GameState);

describe("siring route", () => {
  let app: Hono;
  let prisma: {
    gameState: { findUnique: ReturnType<typeof vi.fn>; update: ReturnType<typeof vi.fn> };
  };

  beforeEach(async () => {
    vi.clearAllMocks();
    const { siringRouter } = await import("../../src/routes/siring.js");
    const { prisma: p } = await import("../../src/db/client.js");
    prisma = p as typeof prisma;
    app = new Hono();
    app.route("/siring", siringRouter);
  });

  const post = (path: string, body?: Record<string, unknown>) =>
    app.fetch(new Request(`http://localhost/siring${path}`, {
      method:  "POST",
      headers: body !== undefined ? { "Content-Type": "application/json" } : undefined,
      body:    body !== undefined ? JSON.stringify(body) : undefined,
    }));

  describe("POST /", () => {
    it("returns 404 when no save is found", async () => {
      vi.mocked(prisma.gameState.findUnique).mockResolvedValueOnce(null);
      const res = await post("");
      expect(res.status).toBe(404);
    });

    it("returns 400 when vampire realm is not unlocked", async () => {
      const state = makeState();
      vi.mocked(prisma.gameState.findUnique).mockResolvedValueOnce({ state } as never);
      const res = await post("");
      expect(res.status).toBe(400);
    });

    it("returns 400 when not eligible (totalBloodEarned below threshold)", async () => {
      const state = makeState({ vampire: makeVampireState() as GameState["vampire"] });
      vi.mocked(prisma.gameState.findUnique).mockResolvedValueOnce({ state } as never);
      const res = await post("");
      expect(res.status).toBe(400);
      const body = await res.json() as { error: string };
      expect(body.error).toContain("Not eligible");
    });

    it("returns ichorEarned on successful siring", async () => {
      const vampire = makeVampireState({ totalBloodEarned: 1_000_000 });
      const state = makeState({ vampire: vampire as GameState["vampire"] });
      vi.mocked(prisma.gameState.findUnique).mockResolvedValueOnce({ state } as never);
      vi.mocked(prisma.gameState.update).mockResolvedValueOnce({} as never);
      const res = await post("");
      expect(res.status).toBe(200);
      const body = await res.json() as { ichorEarned: number; newSiringCount: number };
      expect(body.newSiringCount).toBe(1);
      expect(body.ichorEarned).toBeGreaterThanOrEqual(1);
    });

    it("applies threshold multiplier when siring_threshold upgrade is purchased", async () => {
      // siring_threshold_1 reduces threshold by 10% → 900_000 required instead of 1_000_000
      const vampire = makeVampireState({
        siring:          makeSiring({ purchasedUpgradeIds: [ "siring_threshold_1" ] }),
        totalBloodEarned: 900_000,
      });
      const state = makeState({ vampire: vampire as GameState["vampire"] });
      vi.mocked(prisma.gameState.findUnique).mockResolvedValueOnce({ state } as never);
      vi.mocked(prisma.gameState.update).mockResolvedValueOnce({} as never);
      const res = await post("");
      expect(res.status).toBe(200);
      const body = await res.json() as { newSiringCount: number };
      expect(body.newSiringCount).toBe(1);
    });

    it("returns 500 when the database throws an Error", async () => {
      vi.mocked(prisma.gameState.findUnique).mockRejectedValueOnce(new Error("DB error"));
      const res = await post("");
      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 post("");
      expect(res.status).toBe(500);
    });
  });

  describe("POST /buy-upgrade", () => {
    it("returns 400 when upgradeId is missing", async () => {
      const res = await post("/buy-upgrade", {});
      expect(res.status).toBe(400);
    });

    it("returns 404 for an unknown upgrade id", async () => {
      const res = await post("/buy-upgrade", { upgradeId: "nonexistent_siring_upgrade" });
      expect(res.status).toBe(404);
    });

    it("returns 404 when no save is found", async () => {
      vi.mocked(prisma.gameState.findUnique).mockResolvedValueOnce(null);
      const res = await post("/buy-upgrade", { upgradeId: "siring_blood_1" });
      expect(res.status).toBe(404);
    });

    it("returns 400 when vampire realm is not unlocked", async () => {
      const state = makeState();
      vi.mocked(prisma.gameState.findUnique).mockResolvedValueOnce({ state } as never);
      const res = await post("/buy-upgrade", { upgradeId: "siring_blood_1" });
      expect(res.status).toBe(400);
    });

    it("returns 400 when the upgrade is already purchased", async () => {
      const vampire = makeVampireState({
        siring: makeSiring({ ichor: 10, purchasedUpgradeIds: [ "siring_blood_1" ] }),
      });
      const state = makeState({ vampire: vampire as GameState["vampire"] });
      vi.mocked(prisma.gameState.findUnique).mockResolvedValueOnce({ state } as never);
      const res = await post("/buy-upgrade", { upgradeId: "siring_blood_1" });
      expect(res.status).toBe(400);
    });

    it("returns 400 when not enough ichor", async () => {
      const vampire = makeVampireState({ siring: makeSiring({ ichor: 0 }) });
      const state = makeState({ vampire: vampire as GameState["vampire"] });
      vi.mocked(prisma.gameState.findUnique).mockResolvedValueOnce({ state } as never);
      // siring_blood_1 costs 5 ichor, state has 0
      const res = await post("/buy-upgrade", { upgradeId: "siring_blood_1" });
      expect(res.status).toBe(400);
    });

    it("returns updated multipliers on a successful upgrade purchase", async () => {
      const vampire = makeVampireState({ siring: makeSiring({ ichor: 10 }) });
      const state = makeState({ vampire: vampire as GameState["vampire"] });
      vi.mocked(prisma.gameState.findUnique).mockResolvedValueOnce({ state } as never);
      vi.mocked(prisma.gameState.update).mockResolvedValueOnce({} as never);
      const res = await post("/buy-upgrade", { upgradeId: "siring_blood_1" });
      expect(res.status).toBe(200);
      const body = await res.json() as { ichorRemaining: number; purchasedUpgradeIds: Array<string> };
      expect(body.ichorRemaining).toBe(5); // 10 - 5 (siring_blood_1 costs 5)
      expect(body.purchasedUpgradeIds).toContain("siring_blood_1");
    });

    it("returns 500 when the database throws an Error during buy-upgrade", async () => {
      vi.mocked(prisma.gameState.findUnique).mockRejectedValueOnce(new Error("DB error"));
      const res = await post("/buy-upgrade", { upgradeId: "siring_blood_1" });
      expect(res.status).toBe(500);
    });

    it("returns 500 when the database throws a non-Error value during buy-upgrade", async () => {
      vi.mocked(prisma.gameState.findUnique).mockRejectedValueOnce("raw string error");
      const res = await post("/buy-upgrade", { upgradeId: "siring_blood_1" });
      expect(res.status).toBe(500);
    });
  });
});