import { test, expect } from '@playwright/test';
import fs from 'fs';
import path from 'path';

test.describe('Voice Roleplay Simulation & Visualizer Suite', () => {
  test.beforeEach(async ({ page }) => {
    // Stub getUserMedia and AudioContext before loading page
    await page.addInitScript(() => {
      window.localStorage.clear();
      window.localStorage.setItem('cognitive-clarity-settings', JSON.stringify({
        voiceName: 'Kore',
        vocalStyle: 'Calm',
        genderPreference: 'Female',
        openRouterApiKey: 'sk-or-v1-playwright-test-key',
        roleplayModel: 'google/gemini-3.8-flash',
        supervisorModel: 'google/gemini-3.8-flash'
      }));

      // Mock MediaDevices with real native MediaStream from AudioContext
      if (navigator.mediaDevices) {
        navigator.mediaDevices.getUserMedia = async () => {
          try {
            const AudioCtx = window.AudioContext || (window as any).webkitAudioContext;
            const ctx = new AudioCtx();
            const dest = ctx.createMediaStreamDestination();
            return dest.stream;
          } catch (e) {
            return new MediaStream();
          }
        };
        navigator.mediaDevices.enumerateDevices = async () => [
          {
            deviceId: 'default',
            kind: 'audioinput',
            label: 'Studio Microphone Pro',
            groupId: 'group-1',
            toJSON: () => {}
          } as MediaDeviceInfo
        ];
      }
    });

    // Mock OpenRouter Speech synthesis API
    await page.route('https://openrouter.ai/api/v1/audio/speech', async (route) => {
      // Return empty audio buffer
      const dummyPcm = new Uint8Array(2048);
      await route.fulfill({
        status: 200,
        contentType: 'audio/mpeg',
        body: Buffer.from(dummyPcm)
      });
    });
  });

  test('01 - Launch Voice Session, Visualizer Orb, and Transcript Drawer', async ({ page }, testInfo) => {
    await page.goto('/');
    await page.waitForLoadState('networkidle');

    // Click 'Voice' on 'Critical Feedback'
    const voiceBtn = page.getByRole('button', { name: 'Voice' }).first();
    await voiceBtn.click();

    // Verify initializing transition screen
    await expect(page.getByText('Initializing Session')).toBeVisible();

    // Wait for Voice Session cockpit
    await expect(page.getByText(/Active Roleplay Session/)).toBeVisible({ timeout: 5000 });
    await expect(page.getByText('Begin Voice Simulation')).toBeVisible();
    await expect(page.getByText('Kore Vocal Persona Active')).toBeVisible();

    const shotDir = path.join(process.cwd(), 'docs/screenshots', testInfo.project.name);
    fs.mkdirSync(shotDir, { recursive: true });
    await page.screenshot({ path: path.join(shotDir, '13-voice-cockpit-initial.png'), fullPage: true });

    // Click 'Begin Voice Simulation'
    await page.getByRole('button', { name: 'Begin Voice Simulation' }).click();

    // Toggle Transcript Drawer
    const transcriptToggleBtn = page.getByTitle('Toggle Transcript Drawer');
    await transcriptToggleBtn.click();

    // Verify Transcript Drawer opens
    await expect(page.getByText('Live Conversation')).toBeVisible();

    await page.screenshot({ path: path.join(shotDir, '14-voice-transcript-drawer.png'), fullPage: true });

    // Close Transcript Drawer by toggling it back off
    await transcriptToggleBtn.click();
    await expect(page.getByText('Live Conversation')).not.toBeVisible();

    // Toggle Mute
    const muteBtn = page.getByTitle('Mute Microphone');
    await muteBtn.click();
    await expect(page.getByTitle('Unmute Microphone')).toBeVisible();

    // Open Audio Hardware Settings
    const audioSettingsBtn = page.getByTitle('Audio Settings');
    await audioSettingsBtn.click();
    await expect(page.getByText('Select Audio Input Device')).toBeVisible();

    await page.screenshot({ path: path.join(shotDir, '15-voice-audio-settings-modal.png'), fullPage: true });
  });
});