feat: add agoric.priceAuthority via priceAuthorityRegistry

Agoric · Oct 31, 2020 · c602d14 · c602d14
1 parent e01c1b0
commit c602d14
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Showing 4 changed files with 23 additions and 4 deletions.
diff --git a/packages/cosmic-swingset/lib/ag-solo/vats/bootstrap.js b/packages/cosmic-swingset/lib/ag-solo/vats/bootstrap.js
@@ -44,13 +44,15 @@ export function buildRootObject(vatPowers, vatParameters) {
       chainTimerService,
       zoe,
       contractHost,
+      { priceAuthority, adminFacet: priceAuthorityAdmin },
     ] = await Promise.all([
       E(vats.sharing).getSharingService(),
       E(vats.registrar).getSharedRegistrar(),
       E(vats.board).getBoard(),
       E(vats.timer).createTimerService(timerDevice),
       E(vats.zoe).buildZoe(vatAdminSvc),
       E(vats.host).makeHost(),
+      E(vats.priceAuthority).makePriceAuthority(),
     ]);
 
     // Make the other demo mints
@@ -61,6 +63,8 @@ export function buildRootObject(vatPowers, vatParameters) {
       ),
     );
 
+    // TODO: Create priceAuthority pairs for
+
     // Register the moola and simolean issuers
     const issuerInfo = await Promise.all(
       issuerNames.map(async (issuerName, i) =>
@@ -86,6 +90,9 @@ export function buildRootObject(vatPowers, vatParameters) {
           // Give the authority to create a new host for vattp to share objects with.
           additionalPowers.vattp = makeVattpFrom(vats);
         }
+        if (powerFlags && powerFlags.includes('agoric.priceAuthorityAdmin')) {
+          additionalPowers.priceAuthorityAdmin = priceAuthorityAdmin;
+        }
 
         const pursePetnames = {
           moola: 'Fun budget',
@@ -121,6 +128,7 @@ export function buildRootObject(vatPowers, vatParameters) {
           contractHost,
           faucet,
           ibcport,
+          priceAuthority,
           registrar: registry,
           registry,
           board,
@@ -365,6 +373,7 @@ export function buildRootObject(vatPowers, vatParameters) {
                 // to give capabilities to all clients (since we are running
                 // locally with the `--give-me-all-the-agoric-powers` flag).
                 return chainBundler.createUserBundle(nickname, [
+                  'agoric.priceAuthorityAdmin',
                   'agoric.vattp',
                 ]);
               }

diff --git a/packages/cosmic-swingset/lib/ag-solo/vats/chain-config.json b/packages/cosmic-swingset/lib/ag-solo/vats/chain-config.json
@@ -21,6 +21,9 @@
     "network": {
       "sourceSpec": "vat-network.js"
     },
+    "priceAuthority": {
+      "sourceSpec": "vat-priceAuthority.js"
+    },
     "provisioning": {
       "sourceSpec": "vat-provisioning.js"
     },

diff --git a/packages/cosmic-swingset/lib/ag-solo/vats/vat-priceAuthority.js b/packages/cosmic-swingset/lib/ag-solo/vats/vat-priceAuthority.js
@@ -0,0 +1,7 @@
+import { makePriceAuthorityRegistry } from '@agoric/zoe/tools/priceAuthorityRegistry';
+
+export function buildRootObject(_vatPowers) {
+  return harden({
+    makePriceAuthority: makePriceAuthorityRegistry,
+  });
+}
diff --git a/packages/zoe/tools/priceAuthorityRegistry.js b/packages/zoe/tools/priceAuthorityRegistry.js
@@ -63,13 +63,13 @@ export const makePriceAuthorityRegistry = () => {
       const record = lookup(brandIn, brandOut);
       return E(record.priceAuthority).getTimerService(brandIn, brandOut);
     },
-    async getAmountInQuote(amountIn, brandOut) {
+    async quoteGiven(amountIn, brandOut) {
       const record = lookup(amountIn.brand, brandOut);
-      return E(record.priceAuthority).getAmountInQuote(amountIn, brandOut);
+      return E(record.priceAuthority).quoteGiven(amountIn, brandOut);
     },
-    async getAmountOutQuote(brandIn, amountOut) {
+    async quoteWanted(brandIn, amountOut) {
       const record = lookup(brandIn, amountOut.brand);
-      return E(record.priceAuthority).getAmountOutQuote(brandIn, amountOut);
+      return E(record.priceAuthority).quoteWanted(brandIn, amountOut);
     },
     async getPriceNotifier(brandIn, brandOut) {
       const record = lookup(brandIn, brandOut);