import { render, screen } from "@testing-library/react";
import type { Address, Hex } from "viem";
import { describe, expect, it } from "vitest";
import shellHtml from "../index.html?raw";
import { App } from "./App";
import type { DashboardState } from "./hooks/useBankDashboard";
import type { DashboardSnapshot, DeploymentManifest } from "./types/dashboard";

const address = (digit: string) => `0x${digit.repeat(40)}` as Address;
const transactionHash = (digit: string) => `0x${digit.repeat(64)}` as Hex;

const localManifest: DeploymentManifest = {
  schemaVersion: 1,
  network: "anvil",
  chainId: 31337,
  deploymentBlock: 3n,
  rpcUrl: "http://127.0.0.1:8545",
  token: address("1"),
  proxy: address("2"),
  implementation: address("3"),
  owner: address("4"),
  actors: [
    { label: "Alice", address: address("5") },
    { label: "Bob", address: address("6") },
  ],
};

const snapshot: DashboardSnapshot = {
  blockNumber: 18n,
  synchronizedAt: new Date("2026-08-21T10:00:00.000Z"),
  version: 1,
  paused: true,
  asset: localManifest.token,
  owner: localManifest.owner,
  proxy: localManifest.proxy,
  implementation: localManifest.implementation,
  reserves: 1_500_000_000n,
  liabilities: 1_400_000_000n,
  surplus: 100_000_000n,
  actors: [
    { label: "Alice", address: address("5"), balance: 900_000_000n },
    { label: "Bob", address: address("6"), balance: 500_000_000n },
  ],
  activity: [
    { kind: "deposit", account: address("5"), amount: 1_000_000_000n, blockNumber: 4n, logIndex: 0, transactionHash: transactionHash("a") },
    { kind: "withdrawal", account: address("5"), amount: 100_000_000n, blockNumber: 5n, logIndex: 0, transactionHash: transactionHash("b") },
    { kind: "paused", account: address("4"), blockNumber: 6n, logIndex: 0, transactionHash: transactionHash("c") },
    { kind: "ownershipTransferred", previousOwner: address("7"), newOwner: address("4"), blockNumber: 3n, logIndex: 1, transactionHash: transactionHash("d") },
    { kind: "upgraded", implementation: address("3"), blockNumber: 3n, logIndex: 0, transactionHash: transactionHash("d") },
  ],
  diagnostics: [{ blockNumber: 7n, logIndex: 2, transactionHash: transactionHash("e"), message: "Could not decode a proxy event log." }],
};

function ready(manifest = localManifest, value = snapshot): DashboardState {
  return { status: "ready", manifest, snapshot: value };
}

describe("read-only operations console", () => {
  it("loads the console entry point from the browser document", () => {
    const document = new DOMParser().parseFromString(shellHtml, "text/html");
    expect(document.querySelector('script[type="module"]')?.getAttribute("src")).toBe("/src/main.tsx");
  });

  it("keeps the exact educational funds warning and complete trust disclosure visible", () => {
    render(<App dashboard={ready()} />);

    expect(screen.getByText("Educational demo — mock token — never use real funds.")).toBeTruthy();
    expect(screen.getByText(/educational and unaudited/i)).toBeTruthy();
    expect(screen.getByText(/owner can pause customer actions and install arbitrary future logic/i)).toBeTruthy();
    expect(screen.getByText(/UUPS mistakes can corrupt state or permanently brick upgradeability/i)).toBeTruthy();
    expect(screen.getByText(/professional audits, operational key controls, multisig or timelocked governance, incident procedures, legal advice, and jurisdiction-specific compliance/i)).toBeTruthy();
  });

  it("renders network, synchronization, lifecycle, pause, and V1 status", () => {
    render(<App dashboard={ready()} />);

    expect(screen.getByText("Local Anvil")).toBeTruthy();
    expect(screen.getByText("Ready")).toBeTruthy();
    expect(screen.getByText("Block 18")).toBeTruthy();
    expect(screen.getByText("Paused")).toBeTruthy();
    expect(screen.getByText("Version 1")).toBeTruthy();
    expect(screen.getByText(/Aug 21, 2026/)).toBeTruthy();
  });

  it("renders accounting, contract identity, and local tracked accounts", () => {
    render(<App dashboard={ready()} />);

    expect(screen.getByText("1,500.00 mUSDC")).toBeTruthy();
    expect(screen.getByText("1,400.00 mUSDC")).toBeTruthy();
    expect(screen.getByText("100.00 mUSDC")).toBeTruthy();
    expect(screen.getByText("107.14%")).toBeTruthy();
    expect(screen.getByText("Proxy")).toBeTruthy();
    expect(screen.getByText("Implementation")).toBeTruthy();
    expect(screen.getByText("Token")).toBeTruthy();
    expect(screen.getByText("Owner")).toBeTruthy();
    expect(screen.getByText("Deployment block")).toBeTruthy();
    expect(screen.getByText("Alice")).toBeTruthy();
    expect(screen.getByText("Bob")).toBeTruthy();
    expect(screen.getByText("900.00 mUSDC")).toBeTruthy();
    expect(screen.getByText("500.00 mUSDC")).toBeTruthy();
  });

  it("makes every learning abbreviation keyboard-focusable with its explanation intact", () => {
    const { container } = render(<App dashboard={ready()} />);
    const abbreviations = Array.from(container.querySelectorAll("abbr"));
    expect(abbreviations).toHaveLength(5);

    for (const abbreviation of abbreviations) {
      expect(abbreviation.getAttribute("title")?.trim().length).toBeGreaterThan(0);
      expect(abbreviation.getAttribute("tabindex")).toBe("0");
      (abbreviation as HTMLElement).focus();
      expect(document.activeElement).toBe(abbreviation);
    }
  });

  it("renders valid V1 activity newest first beside an isolated decode warning", () => {
    render(<App dashboard={ready()} />);

    const timeline = screen.getByLabelText("Proxy activity");
    expect(timeline.textContent).toContain("Deposited");
    expect(timeline.textContent).toContain("Withdrawn");
    expect(timeline.textContent).toContain("Paused by");
    expect(timeline.textContent).toContain("Ownership transferred");
    expect(timeline.textContent).toContain("Implementation upgraded");
    expect(timeline.textContent).toContain("Block 7");
    expect(timeline.textContent).toContain("Could not decode a proxy event log.");
    expect(timeline.textContent?.indexOf("Paused by")).toBeLessThan(timeline.textContent?.indexOf("Withdrawn") ?? 0);
    expect(timeline.textContent).toContain("0xcccc…cccc");
  });

  it("uses validated Base Sepolia explorer links and public shortened account labels", () => {
    const baseManifest: DeploymentManifest = {
      ...localManifest,
      network: "baseSepolia",
      chainId: 84532,
      rpcUrl: "https://sepolia.base.org",
      explorerBaseUrl: "https://sepolia.basescan.org",
    };
    render(<App dashboard={ready(baseManifest)} />);

    expect(screen.getByText("Base Sepolia")).toBeTruthy();
    expect(screen.queryByText("Alice")).toBeNull();
    expect(screen.getAllByText("0x5555…5555").length).toBeGreaterThan(0);
    const proxyLink = screen.getByRole("link", { name: /proxy.*0x2222…2222/i });
    expect(proxyLink.getAttribute("href")).toBe(`https://sepolia.basescan.org/address/${snapshot.proxy}`);
    const transactionLink = screen.getByRole("link", { name: /transaction 0xcccc…cccc/i });
    expect(transactionLink.getAttribute("href")).toBe(`https://sepolia.basescan.org/tx/${transactionHash("c")}`);
  });

  it("does not create explorer links for local Anvil", () => {
    render(<App dashboard={ready()} />);
    expect(screen.queryAllByRole("link")).toHaveLength(0);
  });

  it("shows No deposits instead of dividing zero liabilities", () => {
    render(<App dashboard={ready(localManifest, { ...snapshot, reserves: 0n, liabilities: 0n, surplus: 0n })} />);
    expect(screen.getByText("No deposits")).toBeTruthy();
  });

  it("distinguishes stale and disconnected conditions without hiding the persistent warnings", () => {
    const { rerender } = render(<App dashboard={{
      status: "stale",
      manifest: localManifest,
      snapshot,
      failedAt: new Date("2026-08-21T10:05:00.000Z"),
      error: "RPC timeout",
    }} />);
    expect(screen.getByText("Stale")).toBeTruthy();
    expect(screen.getByText(/RPC timeout/)).toBeTruthy();
    expect(screen.getByText("1,500.00 mUSDC")).toBeTruthy();

    rerender(<App dashboard={{
      status: "disconnected",
      manifest: localManifest,
      failedAt: new Date("2026-08-21T10:06:00.000Z"),
      error: "connection refused",
    }} />);
    expect(screen.getAllByText("Disconnected")).toHaveLength(2);
    expect(screen.getByText(/connection refused/)).toBeTruthy();
    expect(screen.getByText("Educational demo — mock token — never use real funds.")).toBeTruthy();
    expect(screen.getByText(/educational and unaudited/i)).toBeTruthy();
  });

  it("renders explanatory invalid-manifest and chain-mismatch terminal screens", () => {
    const { rerender } = render(<App dashboard={{ status: "invalid-manifest", error: "manifest is missing required field proxy" }} />);
    expect(screen.getAllByText("Invalid manifest")).toHaveLength(2);
    expect(screen.getByText(/missing required field proxy/)).toBeTruthy();

    rerender(<App dashboard={{
      status: "chain-mismatch",
      manifest: localManifest,
      error: "endpoint chain ID 84532 does not match manifest chain ID 31337",
    }} />);
    expect(screen.getAllByText("Chain mismatch")).toHaveLength(2);
    expect(screen.getByText(/84532.*31337/)).toBeTruthy();
  });

  it("exposes no forms, buttons, wallet connection, signing, or transaction controls", () => {
    const { container } = render(<App dashboard={ready()} />);
    expect(container.querySelector("button")).toBeNull();
    expect(container.querySelector("form")).toBeNull();
    expect(container.textContent).not.toMatch(/connect wallet|sign transaction|submit transaction|deposit funds|withdraw funds/i);
  });
});