import { expect, test } from '@playwright/test'
import { authenticate, mockHermesApi, TEST_ACCESS_KEY } from './fixtures'

// The fixture has one category and one node; calculate its initial projection
// so the test exercises the actual canvas hit testing and pointer events.
function nodePosition(id: string, kind: 'memory' | 'skill', width: number, height: number) {
  let hash = 2166136261
  for (const char of `${id}:0`) hash = Math.imul(hash ^ char.charCodeAt(0), 16777619)
  const seed = hash >>> 0
  const a = (seed % 6283) / 1000
  const b = ((seed >> 8) % 3141) / 1000
  const spread = kind === 'memory' ? 125 : 165
  const x = Math.cos(-0.84) * 360 + Math.cos(a) * Math.sin(b) * spread
  const y = Math.sin(-0.84) * 360 * 0.72 + Math.cos(b) * spread * 0.85
  const z = Math.sin(a) * Math.sin(b) * spread
  const x1 = x * Math.cos(0.55) - z * Math.sin(0.55)
  const z1 = x * Math.sin(0.55) + z * Math.cos(0.55)
  const y1 = y * Math.cos(-0.25) - z1 * Math.sin(-0.25)
  const z2 = y * Math.sin(-0.25) + z1 * Math.cos(-0.25)
  const perspective = 860 / (860 + z2)
  return { x: width / 2 + x1 * perspective, y: height / 2 + y1 * perspective }
}

for (const kind of ['memory', 'skill'] as const) {
  test(`previews a ${kind} node on hover and keeps click details`, async ({ page }) => {
    const id = kind === 'memory' ? 'memory:0' : 'skill:example'
    const label = kind === 'memory' ? 'Memory label' : 'Example skill title'
    await page.setViewportSize({ width: 1280, height: 900 })
    await authenticate(page, TEST_ACCESS_KEY, 'research')
    await mockHermesApi(page)
    await page.route(/^https?:\/\/[^/]+\/api\/hermes\/journey(?:\?.*)?$/, route => route.fulfill({ json: {
      profile: 'research', source: 'cli', graph: {
        nodes: [{ id, label, kind, category: 'general', useCount: 1 }], edges: [], clusters: [],
        memory: [{ title: 'Memory label', body: 'Remember this useful detail.' }],
      },
    } }))
    await page.goto('/#/hermes/journey')
    const canvas = page.locator('.galaxy-canvas')
    await expect(page.locator('.galaxy-hud')).toContainText('1')
    const box = (await canvas.boundingBox())!
    const point = nodePosition(id, kind, box.width, box.height)
    await page.mouse.move(box.x + point.x, box.y + point.y)
    const preview = page.locator('.node-preview')
    await expect(preview).toBeVisible()
    await expect(preview).toContainText(kind === 'memory' ? 'Remember this useful detail.' : label)
    const previewBox = (await preview.boundingBox())!
    expect(previewBox.x).toBeGreaterThanOrEqual(box.x)
    expect(previewBox.x + previewBox.width).toBeLessThanOrEqual(box.x + box.width + 1)
    await expect(page.locator('.journey-detail-drawer')).toBeHidden()
    await page.mouse.click(box.x + point.x, box.y + point.y)
    await expect(page.locator('.journey-detail-drawer')).toBeVisible()
    await page.keyboard.press('Escape')
    await page.mouse.move(box.x + 5, box.y + box.height - 5)
    await expect(preview).toHaveCount(0)
  })
}