/* 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();
  }),
}));

const DISCORD_ID = "test_discord_id";

const makeBoss = (overrides: Record<string, unknown> = {}) => ({
  id: "test_boss",
  zoneId: "test_zone",
  status: "available",
  prestigeRequirement: 0,
  currentHp: 100,
  maxHp: 100,
  damagePerSecond: 1,
  goldReward: 50,
  essenceReward: 10,
  crystalReward: 0,
  upgradeRewards: [] as string[],
  equipmentRewards: [] as string[],
  ...overrides,
});

const makeAdventurer = (overrides: Record<string, unknown> = {}) => ({
  id: "test_adventurer",
  count: 1,
  combatPower: 10000, // Very high DPS to guarantee win
  level: 10,
  unlocked: true,
  goldPerSecond: 1,
  essencePerSecond: 0,
  ...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("boss route", () => {
  let app: Hono;
  let prisma: { gameState: { findUnique: ReturnType<typeof vi.fn>; update: ReturnType<typeof vi.fn> } };

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

  const challenge = (body: Record<string, unknown>) =>
    app.fetch(new Request("http://localhost/boss/challenge", {
      method: "POST",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify(body),
    }));

  it("returns 400 when bossId is missing", async () => {
    const res = await challenge({});
    expect(res.status).toBe(400);
  });

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

  it("returns 404 when boss is not in state", async () => {
    const state = makeState({ bosses: [] });
    vi.mocked(prisma.gameState.findUnique).mockResolvedValueOnce({ state } as never);
    const res = await challenge({ bossId: "test_boss" });
    expect(res.status).toBe(404);
  });

  it("returns 400 when boss is already defeated", async () => {
    const state = makeState({ bosses: [makeBoss({ status: "defeated" })] as GameState["bosses"] });
    vi.mocked(prisma.gameState.findUnique).mockResolvedValueOnce({ state } as never);
    const res = await challenge({ bossId: "test_boss" });
    expect(res.status).toBe(400);
  });

  it("returns 403 when prestige requirement is not met", async () => {
    const state = makeState({
      bosses: [makeBoss({ prestigeRequirement: 5 })] as GameState["bosses"],
      prestige: { count: 0, runestones: 0, productionMultiplier: 1, purchasedUpgradeIds: [] },
    });
    vi.mocked(prisma.gameState.findUnique).mockResolvedValueOnce({ state } as never);
    const res = await challenge({ bossId: "test_boss" });
    expect(res.status).toBe(403);
  });

  it("returns 400 when party has no adventurers", async () => {
    const state = makeState({ bosses: [makeBoss()] as GameState["bosses"], adventurers: [] });
    vi.mocked(prisma.gameState.findUnique).mockResolvedValueOnce({ state } as never);
    const res = await challenge({ bossId: "test_boss" });
    expect(res.status).toBe(400);
  });

  it("returns won=true when party defeats boss", async () => {
    const state = makeState({
      bosses: [makeBoss({ currentHp: 100, maxHp: 100, damagePerSecond: 1 })] as GameState["bosses"],
      adventurers: [makeAdventurer({ combatPower: 10000, count: 1, level: 10 })] as GameState["adventurers"],
      zones: [{ id: "test_zone", status: "locked" }] as GameState["zones"],
    });
    vi.mocked(prisma.gameState.findUnique).mockResolvedValueOnce({ state } as never);
    vi.mocked(prisma.gameState.update).mockResolvedValueOnce({} as never);
    const res = await challenge({ bossId: "test_boss" });
    expect(res.status).toBe(200);
    const body = await res.json() as { won: boolean; rewards: { gold: number } };
    expect(body.won).toBe(true);
    expect(body.rewards.gold).toBe(50);
  });

  it("returns won=false when party is defeated", async () => {
    const state = makeState({
      bosses: [makeBoss({ currentHp: 1_000_000, maxHp: 1_000_000, damagePerSecond: 1_000_000 })] as GameState["bosses"],
      // Include an adventurer with count=0 to cover the casualty-loop skip branch
      adventurers: [
        makeAdventurer({ combatPower: 1, count: 10, level: 1 }),
        makeAdventurer({ id: "zero_count_adventurer", combatPower: 0, count: 0, level: 1 }),
      ] as GameState["adventurers"],
    });
    vi.mocked(prisma.gameState.findUnique).mockResolvedValueOnce({ state } as never);
    vi.mocked(prisma.gameState.update).mockResolvedValueOnce({} as never);
    const res = await challenge({ bossId: "test_boss" });
    expect(res.status).toBe(200);
    const body = await res.json() as { won: boolean; casualties: Array<{ adventurerId: string }> };
    expect(body.won).toBe(false);
    expect(Array.isArray(body.casualties)).toBe(true);
  });

  it("skips zone unlock when zone is already unlocked and bossId matches", async () => {
    const state = makeState({
      bosses: [makeBoss({ currentHp: 100, maxHp: 100, damagePerSecond: 1 })] as GameState["bosses"],
      adventurers: [makeAdventurer()] as GameState["adventurers"],
      // Zone is already unlocked — the loop should skip it via the status==="unlocked" continue
      zones: [{ id: "test_zone", status: "unlocked", unlockBossId: "test_boss", unlockQuestId: null }] as GameState["zones"],
      quests: [],
    });
    vi.mocked(prisma.gameState.findUnique).mockResolvedValueOnce({ state } as never);
    vi.mocked(prisma.gameState.update).mockResolvedValueOnce({} as never);
    const res = await challenge({ bossId: "test_boss" });
    expect(res.status).toBe(200);
    const body = await res.json() as { won: boolean };
    expect(body.won).toBe(true);
  });

  it("skips zone unlock when quest condition is not satisfied", async () => {
    const state = makeState({
      bosses: [makeBoss({ currentHp: 100, maxHp: 100, damagePerSecond: 1 })] as GameState["bosses"],
      adventurers: [makeAdventurer()] as GameState["adventurers"],
      // Zone has unlockBossId matching but the required quest is not completed
      zones: [{ id: "test_zone", status: "locked", unlockBossId: "test_boss", unlockQuestId: "required_quest" }] as GameState["zones"],
      quests: [{ id: "required_quest", status: "active" }] as GameState["quests"],
    });
    vi.mocked(prisma.gameState.findUnique).mockResolvedValueOnce({ state } as never);
    vi.mocked(prisma.gameState.update).mockResolvedValueOnce({} as never);
    const res = await challenge({ bossId: "test_boss" });
    expect(res.status).toBe(200);
    const body = await res.json() as { won: boolean };
    expect(body.won).toBe(true);
  });

  it("unlocks next zone boss when boss is defeated and zone condition is met", async () => {
    const nextBoss = makeBoss({ id: "next_boss", status: "locked", prestigeRequirement: 0 });
    const state = makeState({
      bosses: [
        makeBoss({ currentHp: 100, maxHp: 100, damagePerSecond: 1 }),
        nextBoss,
      ] as GameState["bosses"],
      adventurers: [makeAdventurer()] as GameState["adventurers"],
      zones: [{ id: "test_zone", status: "locked", unlockBossId: "test_boss", unlockQuestId: null }] as GameState["zones"],
      quests: [],
    });
    vi.mocked(prisma.gameState.findUnique).mockResolvedValueOnce({ state } as never);
    vi.mocked(prisma.gameState.update).mockResolvedValueOnce({} as never);
    const res = await challenge({ bossId: "test_boss" });
    expect(res.status).toBe(200);
    const body = await res.json() as { won: boolean };
    expect(body.won).toBe(true);
  });

  it("handles boss with upgrade and equipment rewards on win", async () => {
    const state = makeState({
      bosses: [makeBoss({
        upgradeRewards: ["some_upgrade"],
        equipmentRewards: ["some_equipment"],
      })] as GameState["bosses"],
      adventurers: [makeAdventurer()] as GameState["adventurers"],
      upgrades: [{ id: "some_upgrade", purchased: false, unlocked: false, target: "global", multiplier: 1 }] as GameState["upgrades"],
      equipment: [{ id: "some_equipment", owned: false, equipped: false, type: "weapon", bonus: {} }] as GameState["equipment"],
      zones: [],
    });
    vi.mocked(prisma.gameState.findUnique).mockResolvedValueOnce({ state } as never);
    vi.mocked(prisma.gameState.update).mockResolvedValueOnce({} as never);
    const res = await challenge({ bossId: "test_boss" });
    expect(res.status).toBe(200);
    const body = await res.json() as { won: boolean; rewards: { upgradeIds: string[]; equipmentIds: string[] } };
    expect(body.won).toBe(true);
    expect(body.rewards.upgradeIds).toContain("some_upgrade");
    expect(body.rewards.equipmentIds).toContain("some_equipment");
  });

  it("updates daily challenge progress on boss defeat", async () => {
    const state = makeState({
      bosses: [makeBoss()] as GameState["bosses"],
      adventurers: [makeAdventurer()] as GameState["adventurers"],
      zones: [],
      dailyChallenges: {
        date: "2024-01-01",
        challenges: [{ id: "boss_challenge", type: "bossesDefeated", target: 3, progress: 0, completed: false, crystalReward: 5 }],
      } as GameState["dailyChallenges"],
    });
    vi.mocked(prisma.gameState.findUnique).mockResolvedValueOnce({ state } as never);
    vi.mocked(prisma.gameState.update).mockResolvedValueOnce({} as never);
    const res = await challenge({ bossId: "test_boss" });
    expect(res.status).toBe(200);
  });

  it("applies adventurer-specific upgrade to party DPS", async () => {
    const state = makeState({
      bosses: [makeBoss({ currentHp: 100, maxHp: 100, damagePerSecond: 1 })] as GameState["bosses"],
      adventurers: [makeAdventurer({ id: "test_adventurer" })] as GameState["adventurers"],
      upgrades: [{ id: "adv_upgrade", purchased: true, unlocked: true, target: "adventurer", adventurerId: "test_adventurer", multiplier: 2 }] as GameState["upgrades"],
      zones: [],
    });
    vi.mocked(prisma.gameState.findUnique).mockResolvedValueOnce({ state } as never);
    vi.mocked(prisma.gameState.update).mockResolvedValueOnce({} as never);
    const res = await challenge({ bossId: "test_boss" });
    expect(res.status).toBe(200);
    const body = await res.json() as { won: boolean };
    expect(body.won).toBe(true);
  });

  it("applies global upgrade multiplier to party DPS when global upgrade is purchased", async () => {
    const state = makeState({
      bosses: [makeBoss({ currentHp: 100, maxHp: 100, damagePerSecond: 1 })] as GameState["bosses"],
      adventurers: [makeAdventurer({ combatPower: 10000, count: 1 })] as GameState["adventurers"],
      upgrades: [{ id: "global_1", purchased: true, unlocked: true, target: "global", multiplier: 2 }] as GameState["upgrades"],
      zones: [],
    });
    vi.mocked(prisma.gameState.findUnique).mockResolvedValueOnce({ state } as never);
    vi.mocked(prisma.gameState.update).mockResolvedValueOnce({} as never);
    const res = await challenge({ bossId: "test_boss" });
    expect(res.status).toBe(200);
    const body = await res.json() as { won: boolean };
    expect(body.won).toBe(true);
  });

  it("unlocks zone when boss defeated and quest condition is also satisfied", async () => {
    const state = makeState({
      bosses: [makeBoss({ currentHp: 100, maxHp: 100, damagePerSecond: 1 })] as GameState["bosses"],
      adventurers: [makeAdventurer()] as GameState["adventurers"],
      zones: [{ id: "test_zone", status: "locked", unlockBossId: "test_boss", unlockQuestId: "test_quest" }] as GameState["zones"],
      quests: [{ id: "test_quest", status: "completed" }] as GameState["quests"],
    });
    vi.mocked(prisma.gameState.findUnique).mockResolvedValueOnce({ state } as never);
    vi.mocked(prisma.gameState.update).mockResolvedValueOnce({} as never);
    const res = await challenge({ bossId: "test_boss" });
    expect(res.status).toBe(200);
    const body = await res.json() as { won: boolean };
    expect(body.won).toBe(true);
  });
});