import { expect, test, type APIRequestContext } from '@playwright/test';
import { Wallet } from 'ethers';
import { createWalletContext } from '../setup/wallet-provider';
import { getStackConfig, validateStackHealthy } from '../setup/stack';
import { navigateSPA } from '../setup/navigate';

const ACCOUNT_PRIVATE_KEY = '0xac0974bec39a17e36ba4a6b4d238ff944bacb478cbed5efcae784d7bf4f2ff80';
const ACCOUNT_ADDRESS = new Wallet(ACCOUNT_PRIVATE_KEY).address.toLowerCase();

// Get stack configuration from environment (or defaults)
const STACK_CONFIG = getStackConfig();
const STACK_RPC_URL = STACK_CONFIG.rpcUrl;
const STACK_WEBAPP_URL = STACK_CONFIG.webAppUrl;
const STACK_GRAPHQL_URL = STACK_CONFIG.graphqlUrl;

async function fetchPositions(request: APIRequestContext, owner: string) {
  const response = await request.post(STACK_GRAPHQL_URL, {
    data: {
      query: `
        query PositionsByOwner($owner: String!) {
          positionss(where: { owner: $owner }, limit: 5) {
            items {
              id
              owner
              taxRate
              stakeDeposit
              status
            }
          }
        }
      `,
      variables: { owner },
    },
    headers: { 'content-type': 'application/json' },
  });

  expect(response.ok()).toBeTruthy();
  const payload = await response.json();
  return (payload?.data?.positionss?.items ?? []) as Array<{
    id: string;
    owner: string;
    taxRate: number;
    stakeDeposit: string;
    status: string;
  }>;
}

test.describe('Acquire & Stake', () => {
  // Validate that a healthy stack exists before running tests
  // Tests do NOT start their own stack - stack must be running already
  test.beforeAll(async () => {
    await validateStackHealthy(STACK_CONFIG);
  });

  test('users can swap KRK via UI', async ({ browser, request }) => {
    console.log('[TEST] Creating wallet context...');
    const context = await createWalletContext(browser, {
      privateKey: ACCOUNT_PRIVATE_KEY,
      rpcUrl: STACK_RPC_URL,
    });

    const page = await context.newPage();

    // Log browser console messages
    page.on('console', msg => console.log(`[BROWSER] ${msg.type()}: ${msg.text()}`));
    page.on('pageerror', error => console.log(`[BROWSER ERROR] ${error.message}`));

    try {
      console.log('[TEST] Loading app...');
      await page.goto(`${STACK_WEBAPP_URL}/app/`, { waitUntil: 'domcontentloaded' });
      console.log('[TEST] App loaded, waiting for Vue app to mount...');

      // Wait for the Vue app to fully mount by waiting for a key element
      // The navbar-title is always present regardless of connection state
      const navbarTitle = page.locator('.navbar-title').first();
      await expect(navbarTitle).toBeVisible({ timeout: 30_000 });
      console.log('[TEST] Vue app mounted, navbar is visible');

      // Trigger a resize event to force Vue's useMobile composable to recalculate
      // This ensures the app recognizes the desktop screen width set by wallet-provider
      await page.evaluate(() => {
        window.dispatchEvent(new Event('resize'));
      });
      await page.waitForTimeout(500);

      // Give extra time for wallet connectors to initialize
      await page.waitForTimeout(2_000);

      // Connect wallet flow:
      // The wallet-provider sets screen.width to 1280 to ensure desktop mode.
      // We expect the desktop Connect button to be visible.
      console.log('[TEST] Looking for Connect button...');

      // Desktop Connect button
      const connectButton = page.locator('.connect-button--disconnected').first();

      let panelOpened = false;

      // Wait for the Connect button with a reasonable timeout
      if (await connectButton.isVisible({ timeout: 5_000 })) {
        console.log('[TEST] Found desktop Connect button, clicking...');
        await connectButton.click();
        panelOpened = true;
      } else {
        // Debug: Log current screen.width and navbar-end contents
        const screenWidth = await page.evaluate(() => window.screen.width);
        const navbarEndHtml = await page.locator('.navbar-end').innerHTML().catch(() => 'not found');
        console.log(`[TEST] DEBUG: screen.width = ${screenWidth}`);
        console.log(`[TEST] DEBUG: navbar-end HTML = ${navbarEndHtml.substring(0, 500)}`);
        console.log('[TEST] Connect button not visible - checking for mobile fallback...');

        // Fallback to mobile login icon (SVG in navbar-end when disconnected)
        const mobileLoginIcon = page.locator('.navbar-end svg').first();
        if (await mobileLoginIcon.isVisible({ timeout: 2_000 })) {
          console.log('[TEST] Found mobile login icon, clicking...');
          await mobileLoginIcon.click();
          panelOpened = true;
        } else {
          console.log('[TEST] No Connect button or mobile icon visible - wallet may already be connected');
        }
      }

      if (panelOpened) {
        await page.waitForTimeout(1_000);

        // Look for the injected wallet connector in the slideout panel
        console.log('[TEST] Looking for wallet connector in panel...');
        const injectedConnector = page.locator('.connectors-element').first();
        if (await injectedConnector.isVisible({ timeout: 5_000 })) {
          console.log('[TEST] Clicking first wallet connector...');
          await injectedConnector.click();
          await page.waitForTimeout(2_000);
        } else {
          console.log('[TEST] WARNING: No wallet connector found in panel');
        }
      }

      // Check if wallet shows as connected in UI
      console.log('[TEST] Checking for wallet display...');
      const walletDisplay = page.getByText(/0xf39F/i).first();
      await expect(walletDisplay).toBeVisible({ timeout: 15_000 });
      console.log('[TEST] Wallet connected successfully!');

      console.log('[TEST] Verifying stack version footer...');
      const versionFooter = page.getByTestId('stack-version-footer');
      await expect(versionFooter).toBeVisible({ timeout: 15_000 });
      await expect(page.getByTestId('stack-version-contracts')).not.toHaveText(/Loading|—/i);
      await expect(page.getByTestId('stack-version-ponder')).not.toHaveText(/Loading|—/i);
      await expect(page.getByTestId('stack-version-kraiken-lib')).toHaveText(/^v\d+/i);
      await expect(page.getByTestId('stack-version-web-app')).toHaveText(/^v/i);
      const warningBanner = page.getByTestId('stack-version-warning');
      await expect(warningBanner).toHaveCount(0);
      console.log('[TEST] Stack version footer verified.');

      console.log('[TEST] Navigating to cheats page...');
      await navigateSPA(page, '/app/cheats');
      await expect(page.getByRole('heading', { name: 'Cheat Console' })).toBeVisible({ timeout: 10_000 });

      console.log('[TEST] Minting test ETH...');
      await page.getByLabel('RPC URL').fill(STACK_RPC_URL);
      await page.getByLabel('Recipient').fill(ACCOUNT_ADDRESS);
      const mintButton = page.getByRole('button', { name: 'Mint' });
      await expect(mintButton).toBeEnabled();
      await mintButton.click();
      await page.waitForTimeout(3_000);

      console.log('[TEST] Buying KRK tokens via swap...');
      await page.screenshot({ path: 'test-results/before-swap.png' });

      // Check if swap is available
      const buyWarning = await page.getByText('Connect to the Base Sepolia fork').isVisible().catch(() => false);
      if (buyWarning) {
        throw new Error('Swap not available - chain config issue persists');
      }

      const ethToSpendInput = page.getByLabel('ETH to spend');
      await ethToSpendInput.fill('0.05');

      const buyButton = page.getByRole('button', { name: 'Buy' }).last();
      await expect(buyButton).toBeVisible();
      console.log('[TEST] Clicking Buy button...');
      await buyButton.click();

      // Wait for button to show "Submitting..." then return to "Buy"
      console.log('[TEST] Waiting for swap to process...');
      try {
        await page.getByRole('button', { name: /Submitting/i }).waitFor({ state: 'visible', timeout: 5_000 });
        console.log('[TEST] Swap initiated, waiting for completion...');
        await page.getByRole('button', { name: 'Buy' }).last().waitFor({ state: 'visible', timeout: 60_000 });
        console.log('[TEST] Swap completed!');
      } catch (e) {
        console.log('[TEST] No "Submitting" state detected, swap may have completed instantly');
      }
      await page.waitForTimeout(2_000);

      console.log('[TEST] Verifying swap via RPC...');
      // Query the blockchain directly to verify KRK balance increased
      const balanceResponse = await fetch(STACK_RPC_URL, {
        method: 'POST',
        headers: { 'content-type': 'application/json' },
        body: JSON.stringify({
          jsonrpc: '2.0',
          id: 1,
          method: 'eth_call',
          params: [{
            to: STACK_CONFIG.contracts.Kraiken, // KRK token from deployments
            data: `0x70a08231000000000000000000000000${ACCOUNT_ADDRESS.slice(2)}` // balanceOf(address)
          }, 'latest']
        })
      });

      const balanceData = await balanceResponse.json();
      const balance = BigInt(balanceData.result || '0x0');
      console.log(`[TEST] KRK balance: ${balance.toString()} wei`);

      expect(balance).toBeGreaterThan(0n);
      console.log('[TEST] ✅ Swap successful! KRK balance > 0');

      // Now test staking via UI
      console.log('[TEST] Navigating to stake page...');
      await navigateSPA(page, '/app/stake');
      await page.waitForTimeout(2_000);

      // Wait for the stake form to be initialized
      console.log('[TEST] Waiting for stake form to load...');
      const tokenAmountSlider = page.getByRole('slider', { name: 'Token Amount' });
      await expect(tokenAmountSlider).toBeVisible({ timeout: 15_000 });

      console.log('[TEST] Filling stake form via accessible controls...');

      // Take screenshot before interaction
      await page.screenshot({ path: 'test-results/before-stake-fill.png' });

      // Check if input is visible and enabled
      const stakeAmountInput = page.getByLabel('Staking Amount');
      console.log('[TEST] Checking if staking amount input is visible...');
      await expect(stakeAmountInput).toBeVisible({ timeout: 10_000 });
      console.log('[TEST] Staking amount input is visible, filling value...');
      await stakeAmountInput.fill('1000');
      console.log('[TEST] Filled staking amount!');

      const taxSelect = page.getByRole('combobox', { name: 'Tax' });
      console.log('[TEST] Selecting tax rate...');
      await taxSelect.selectOption({ value: '2' });
      console.log('[TEST] Tax rate selected!');

      console.log('[TEST] Clicking stake button...');
      // Use the main form's submit button (large/block), not the small position card buttons
      const stakeButton = page.getByRole('main').getByRole('button', { name: /Stake|Snatch and Stake/i });
      await expect(stakeButton).toBeVisible({ timeout: 5_000 });
      await stakeButton.click();

      // Wait for transaction to process
      console.log('[TEST] Waiting for stake transaction...');
      try {
        await page.getByRole('button', { name: /Sign Transaction|Waiting/i }).waitFor({ state: 'visible', timeout: 5_000 });
        console.log('[TEST] Transaction initiated, waiting for completion...');
        await page.getByRole('button', { name: /Stake|Snatch and Stake/i }).waitFor({ state: 'visible', timeout: 60_000 });
        console.log('[TEST] Stake transaction completed!');
      } catch (e) {
        console.log('[TEST] Transaction may have completed instantly');
      }
      // Poll for Ponder to index the staking transaction (Ponder has indexing latency)
      console.log('[TEST] Polling GraphQL for staking position (Ponder indexing latency)...');
      let positions: Awaited<ReturnType<typeof fetchPositions>> = [];
      for (let attempt = 0; attempt < 15; attempt++) {
        await page.waitForTimeout(2_000);
        positions = await fetchPositions(request, ACCOUNT_ADDRESS);
        if (positions.length > 0) break;
        console.log(`[TEST] Ponder not yet indexed (attempt ${attempt + 1}/15), retrying...`);
      }
      console.log(`[TEST] Found ${positions.length} position(s)`);

      expect(positions.length).toBeGreaterThan(0);
      const activePositions = positions.filter(p => p.status === 'Active');
      expect(activePositions.length).toBeGreaterThan(0);

      console.log(`[TEST] ✅ Staking successful! Created ${activePositions.length} active position(s)`);
      console.log('[TEST] ✅ E2E test complete: Full journey verified (Mint → Swap → Stake)');
    } finally {
      await context.close();
    }
  });
});