import { describe, expect, it } from 'vitest'
import { getEmbedChromeVars } from './embedTheme.js'
import { normalizeLegacyEmbedSrc } from './normalizeLegacyEmbedSrc.js'

describe('getEmbedChromeVars', () => {
  it('returns an empty object — color tokens now cascade from data-sb-canvas-theme via tailwind.css', () => {
    expect(getEmbedChromeVars('light')).toEqual({})
    expect(getEmbedChromeVars('dark')).toEqual({})
    expect(getEmbedChromeVars('dark_dimmed')).toEqual({})
  })
})

describe('normalizeLegacyEmbedSrc', () => {
  it('passes through clean canvas-app routes unchanged', () => {
    expect(normalizeLegacyEmbedSrc('/cq-org-enablement')).toBe('/cq-org-enablement')
    expect(normalizeLegacyEmbedSrc('/MyProto/SignupForm')).toBe('/MyProto/SignupForm')
    expect(normalizeLegacyEmbedSrc('/cq-org-enablement#x=1')).toBe('/cq-org-enablement#x=1')
  })

  it('passes through external http(s) URLs unchanged', () => {
    expect(normalizeLegacyEmbedSrc('https://example.com/foo')).toBe('https://example.com/foo')
  })

  it('passes through empty/falsy values', () => {
    expect(normalizeLegacyEmbedSrc('')).toBe('')
    expect(normalizeLegacyEmbedSrc(null)).toBe(null)
    expect(normalizeLegacyEmbedSrc(undefined)).toBe(undefined)
  })

  describe('legacy hash-form: /prototypes.html#/<route>', () => {
    it('strips loader prefix and keeps inner route', () => {
      expect(normalizeLegacyEmbedSrc('/prototypes.html#/cq-org-enablement')).toBe('/cq-org-enablement')
    })

    it('keeps query strings inside inner', () => {
      expect(normalizeLegacyEmbedSrc('/prototypes.html#/cq-org-enablement?cqConfirmOpen=true'))
        .toBe('/cq-org-enablement?cqConfirmOpen=true')
    })

    it('handles non-root basePath', () => {
      expect(normalizeLegacyEmbedSrc('/storyboard/prototypes.html#/MyProto')).toBe('/MyProto')
    })

    it('returns "/" for empty inner', () => {
      expect(normalizeLegacyEmbedSrc('/prototypes.html#')).toBe('/')
    })

    it('prefixes "/" if inner missing leading slash', () => {
      expect(normalizeLegacyEmbedSrc('/prototypes.html#MyProto')).toBe('/MyProto')
    })
  })

  describe('legacy URLSearchParams-clobbered form (real-world 0.6.13/0.6.14 bug)', () => {
    // Real bug: storyboard's session.writeHash did URLSearchParams.toString()
    // on the entire hash, which URL-encoded the route slash to %2F and turned
    // /MyProto into a key with an empty value. Real persisted srcs from the
    // wild look like /prototypes.html#%2Fcq-org-enablement=&cqConfirmOpen=true
    it('recovers route from URLSearchParams-mangled hash', () => {
      expect(
        normalizeLegacyEmbedSrc('/prototypes.html#%2Fcq-org-enablement=&cqConfirmOpen=true'),
      ).toBe('/cq-org-enablement#cqConfirmOpen=true')
    })

    it('recovers route with no surviving storyboard state', () => {
      expect(normalizeLegacyEmbedSrc('/prototypes.html#%2Fcq-org-enablement=')).toBe('/cq-org-enablement')
    })

    it('recovers route with multiple storyboard params', () => {
      expect(
        normalizeLegacyEmbedSrc(
          '/prototypes.html#%2Fcq-org-enablement=&cqEnabled=null&cqFlashDismissed=null&cqConfirmOpen=true',
        ),
      ).toBe('/cq-org-enablement#cqEnabled=null&cqFlashDismissed=null&cqConfirmOpen=true')
    })

    it('recovers nested route', () => {
      expect(
        normalizeLegacyEmbedSrc('/prototypes.html#%2FMyProto%2FSignupForm=&x=1'),
      ).toBe('/MyProto/SignupForm#x=1')
    })

    it('handles non-root basePath', () => {
      expect(
        normalizeLegacyEmbedSrc('/storyboard/prototypes.html#%2FMyProto=&x=1'),
      ).toBe('/MyProto#x=1')
    })
  })

  describe('defensive path-form: /prototypes.html/<route>', () => {
    it('strips loader prefix', () => {
      expect(normalizeLegacyEmbedSrc('/prototypes.html/MyProto')).toBe('/MyProto')
    })

    it('handles nested routes', () => {
      expect(normalizeLegacyEmbedSrc('/prototypes.html/MyProto/SignupForm')).toBe('/MyProto/SignupForm')
    })

    it('handles non-root basePath', () => {
      expect(normalizeLegacyEmbedSrc('/storyboard/prototypes.html/MyProto')).toBe('/MyProto')
    })
  })

  describe('all-encompassing regression — no legacy shape can produce a /prototypes.html src', () => {
    const cases = [
      '/prototypes.html#/foo',
      '/prototypes.html#/foo?bar=1',
      '/prototypes.html#',
      '/prototypes.html#%2Ffoo=&bar=1',
      '/prototypes.html#%2Ffoo%2Fbar=&x=1',
      '/prototypes.html/foo',
      '/prototypes.html/foo/bar',
      '/storyboard/prototypes.html#/foo',
      '/storyboard/prototypes.html#%2Ffoo=&x=1',
      '/storyboard/prototypes.html/foo',
    ]
    for (const input of cases) {
      it(`recovers ${input}`, () => {
        const result = normalizeLegacyEmbedSrc(input)
        expect(result).not.toMatch(/prototypes\.html/)
        expect(result.startsWith('/')).toBe(true)
      })
    }
  })
})
