build: pin LNURLcash protocol packages to npm 0.1.1

src/lnurlcash/mintContract.test.ts

@@ -0,0 +1,165 @@
+// Wire-contract coverage for the pinned lnurlcash-kit / lnurlcash-conformance
+// 0.1.1 artifacts. Two contracts the app's mint discovery relies on:
+// the kit must MAP the mint-address wire field `nodeCapacity` onto the
+// app-facing `nodeCapacityMsat` (0.1.0 spread it under its wire name, so the
+// typed field read undefined forever), and a payRequest withdraw link is
+// legal in both its HTTPS and LUD-17 `lnurlw://` forms - the published
+// conformance mock mint emits `lnurlw://` by default, so do NOT assume an
+// HTTPS default anywhere in the receive path.
+
+import {afterEach, describe, expect, it} from 'vitest'
+import {createMockMint} from 'lnurlcash-conformance/mock-mint'
+import {buildNoteUrl, fetchMintAddress} from 'lnurlcash-kit'
+
+import {claimMintedNote, prepareMint} from './ops'
+import {mintAddressCacheInfo} from './trustedMints'
+
+type Mint = Awaited<ReturnType<typeof createMockMint>>
+
+const mints: Mint[] = []
+const mint = async (options: Parameters<typeof createMockMint>[0] = {}): Promise<Mint> => {
+  const m = await createMockMint(options)
+  mints.push(m)
+  return m
+}
+
+afterEach(async () => {
+  await Promise.all(mints.splice(0).map((m) => m.close()))
+})
+
+// paying a mint invoice is what brings its note into existence - the mock
+// exposes that through its test hook (settle + credit in one step)
+const settleLastInvoice = async (m: Mint): Promise<string> => {
+  const paymentHash = [...m.state.invoices.keys()].at(-1)
+  if (!paymentHash) throw new Error('no invoice requested yet')
+  const res = await fetch(`${m.url}/_test/settle?payment_hash=${paymentHash}`)
+  if (!res.ok) throw new Error(`settle hook failed: ${res.status}`)
+  const invoice = m.state.invoices.get(paymentHash)
+  if (!invoice) throw new Error('settled invoice vanished from the mock')
+  return invoice.preimage
+}
+
+const MINT_PUBKEY = `02${'ab'.repeat(32)}`
+
+// a mint-address (LUD-25) wire response exactly as lnurl-mint serves it:
+// node stats under their WIRE names - `nodeCapacity` is msat like every
+// other amount, named without the suffix on the wire
+const mintAddressFixture = {
+  tag: 'withdrawRequest',
+  callback: 'https://mint.example/w/cb',
+  minWithdrawable: 1_000,
+  maxWithdrawable: 100_000_000,
+  defaultDescription: 'fixture mint',
+  payLink: 'https://mint.example/.well-known/lnurlp/mint',
+  mintPubkey: MINT_PUBKEY,
+  nodeAlias: 'fixture-mint',
+  nodeCapacity: 500_000_000,
+  nodeNumChannels: 4,
+  nodeNumPeers: 6,
+}
+
+const jsonResponse = (body: unknown): Response =>
+  new Response(JSON.stringify(body), {
+    status: 200,
+    headers: {'content-type': 'application/json'},
+  })
+
+// a fetch that serves fixture bodies by URL prefix and 404s everything else,
+// so a test drives the real kit HTTP boundary without any network
+const fixtureFetch = (routes: ReadonlyArray<readonly [string, unknown]>): typeof fetch => {
+  const impl: typeof fetch = (input, _init) => {
+    const url = typeof input === 'string' ? input : input instanceof URL ? input.href : input.url
+    for (const [prefix, body] of routes) {
+      if (url.startsWith(prefix)) return Promise.resolve(jsonResponse(body))
+    }
+    return Promise.resolve(new Response('not found', {status: 404}))
+  }
+  return impl
+}
+
+describe('mint-address wire contract', () => {
+  it('maps the wire nodeCapacity onto the app-facing nodeCapacityMsat', async () => {
+    const info = await fetchMintAddress('https://mint.example/.well-known/lnurlw/mint', {
+      fetch: fixtureFetch([['https://mint.example/', mintAddressFixture]]),
+    })
+    // renamed fields have to be mapped, not spread: the spread carries the
+    // wire name through and the typed one reads undefined forever
+    expect(info.nodePubkey).toBe(MINT_PUBKEY)
+    expect(info.nodeCapacityMsat).toBe(500_000_000)
+    expect(info.nodeNumChannels).toBe(4)
+    expect(info.nodeNumPeers).toBe(6)
+  })
+
+  it('carries node stats into the cached trusted-mint display metadata', async () => {
+    const info = await fetchMintAddress('https://mint.example/.well-known/lnurlw/mint', {
+      fetch: fixtureFetch([['https://mint.example/', mintAddressFixture]]),
+    })
+    const cached = mintAddressCacheInfo(info, 'mint')
+    expect(cached?.nodeCapacityMsat).toBe(500_000_000)
+    expect(cached?.nodeNumChannels).toBe(4)
+    expect(cached?.nodeNumPeers).toBe(6)
+  })
+
+  it("surfaces the mock mint's mint-address node stats through prepareMint", async () => {
+    const m = await mint()
+    const prepared = await prepareMint(`mint@127.0.0.1:${m.port}`, 21_000)
+    // the metadata is advertised at the mint-address endpoint itself -
+    // the payRequest never carried it
+    expect(prepared.nodeInfo?.nodePubkey).toBe(m.state.pubkey)
+    expect(prepared.nodeInfo?.nodeCapacityMsat).toBe(500_000_000)
+    expect(prepared.nodeInfo?.nodeNumChannels).toBe(4)
+    expect(prepared.nodeInfo?.nodeNumPeers).toBe(6)
+    const cached = mintAddressCacheInfo(prepared.nodeInfo, prepared.username)
+    expect(cached?.nodeCapacityMsat).toBe(500_000_000)
+  })
+})
+
+describe('withdraw-link forms', () => {
+  it('accepts the lnurlw:// withdraw link the conformance mock mint advertises', async () => {
+    const m = await mint({testHooks: true})
+    const prepared = await prepareMint(`mint@127.0.0.1:${m.port}`, 21_000)
+    // published conformance 0.1.1 emits lnurlw:// by default - NOT https
+    expect(prepared.withdrawLink).toMatch(/^lnurlw:\/\//)
+
+    // and the link is fully usable: settle the invoice, claim the note
+    const preimage = await settleLastInvoice(m)
+    const claimed = await claimMintedNote(prepared, {
+      intervalMs: 10,
+      intervalCapMs: 50,
+      maxWaitMs: 5_000,
+    })
+    expect(claimed.rotated).toBe(true)
+    expect(claimed.note.amount).toBe(21_000)
+    expect(m.state.noteState(preimage)).toBe('burned')
+  })
+
+  it('accepts an HTTPS withdraw link', async () => {
+    const fetch = fixtureFetch([
+      ['https://mint.example/.well-known/lnurlw/mint', mintAddressFixture],
+      [
+        'https://mint.example/.well-known/lnurlp/mint',
+        {
+          tag: 'payRequest',
+          callback: 'https://mint.example/pay',
+          minSendable: 1_000,
+          maxSendable: 100_000_000_000,
+          withdrawLink: 'https://mint.example/note',
+          metadata: '[]',
+        },
+      ],
+      // amount-less invoice: the kit skips its amount cross-check
+      ['https://mint.example/pay', {pr: 'lnmock1fixture', verify: null}],
+    ])
+    const prepared = await prepareMint('mint@mint.example', 21_000, {fetch})
+    expect(prepared.withdrawLink).toBe('https://mint.example/note')
+    // the mint-address payLink is authoritative - the payRequest came from it
+    expect(prepared.mintUrl).toBe('https://mint.example/.well-known/lnurlp/mint')
+  })
+
+  it('builds the same note URL from both withdraw-link forms', () => {
+    const k1 = 'ab'.repeat(32)
+    expect(buildNoteUrl('lnurlw://mint.example/note', k1, 21_000)).toBe(
+      buildNoteUrl('https://mint.example/note', k1, 21_000),
+    )
+  })
+})