Add extended Midnight bundle options

.changeset/fixed-rate-offer-chain.md

@@ -0,0 +1,5 @@
+---
+"@morpho-org/midnight-sdk": minor
+---
+
+Add `OfferChainUtils.buildFixedRateOfferChain` and `getMaxFixedRateOfferChainEndTimestamp` so the markets app can build adjacent, grouped offers that keep a maker's displayed fixed rate stable across a long selected window.

.changeset/quiet-midnight-flows.md

@@ -0,0 +1,15 @@
+---
+"@morpho-org/morpho-sdk": minor
+---
+
+Add Midnight action flows under `client.morpho.midnight(chainId)`, expose Midnight SDK API helpers through `morpho-sdk/midnight-api` and shared ABI/constant/error/utility entrypoints, and expose pure Midnight transaction builders for fixed-rate taker, maker, redeem, repay/withdraw, and cancel flows.
+
+The Midnight entity returns lazy action outputs with `getRequirements()` and synchronous `buildTx(...)` methods, matching the existing `morpho-sdk` action pattern while accepting fixed-rate API quote takeable offers directly. UI labels, rate display logic, and offer-chain presentation stay on the integrator side.
+
+Midnight market transaction builders are synchronous and consume caller-provided `marketData` state, with `redeem` also consuming caller-provided `positionData`. Maker-offer action builders consume caller-provided `offersData` from `getOffersData(...)`, which creates the tree from the same entries accepted by `Tree.create(...)` and runs mempool validation. `getMarketData(...)`, block-accrued `getPositionData(...)`, and `getOffersData(...)` remain async helpers so integrators can prepare state once, compose UI/validation around it, and then build transactions without hidden reads.
+
+Midnight Bundles calls support ERC2612 and Permit2 token permits through the same `supportSignature` / `useSimplePermit` requirement flow as Blue, while preserving `PermitKind.None` for approval-based execution.
+
+Borrow-side flows are explicit: `takeBorrow` and `makeBorrow` borrow without supplying collateral, while `supplyCollateralTakeBorrow` and `supplyCollateralMakeBorrow` perform collateral-supply plus borrow flows. Public maker flows are exposed through named synchronous actions such as `makeLend`, `makeBorrow`, and `supplyCollateralMakeBorrow`; they accept precomputed `offersData` prepared from one or more standalone offers or groups. Maker submit metadata exposes all submitted group ids, and the ratifier helpers enforce that the submitted tree uses one ratifier.
+
+Named take transaction builders validate that their takeable offers match the expected maker side, and named maker entity flows validate that prepared maker trees match the expected maker side. `getOffersData(...)` stays side-agnostic so callers can prepare any valid tree.

docs/tibs/TIB-2026-05-20-midnight-sdk-utilities.md

@@ -399,6 +399,7 @@ Expose deterministic library methods:
 - `TickLib.snapPriceToTick`
 - `TickLib.rateToPrice`
 - `TickLib.tickToRate`
+- `TickLib.tickToApr`
 - `TakeAmountsLib.buyerAssetsToUnits`
 - `TakeAmountsLib.sellerAssetsToUnits`
 - `TakeAmountsLib.toUnits` for SDK-only generic unit conversion convenience
@@ -412,6 +413,9 @@ SDK-only derived helpers should live beside the domain they describe:
 - `MarketUtils.getLiquidationIncentiveFactor` with an explicit liquidation cursor
 - `MarketUtils.getSettlementFee`
 - `PositionUtils.accrueInterest`
+- `OfferUtils.getPrice`
+- `OfferUtils.getRate`
+- `OfferUtils.getApr`
 - `OfferUtils.getOfferExpiry`
 
 The pure helpers that mirror `TakeAmountsLib` should accept `settlementFee` as an explicit input instead of reading the chain. Fetching settlement fee remains a boundary concern; fetch helpers that compute it should accept `timeToMaturity` directly so callers do not confuse wall-clock time with Solidity's `block.timestamp`.

packages/midnight-sdk/src/abis.ts

@@ -2717,9 +2717,9 @@ export const midnightAbi = [
 /**
  * ABI JSON for the Midnight Bundles periphery used by app-compatible taker and repay flows.
  *
- * Source: `morpho-org/morpho-apps` commit `4e903d545184a1f46b378c5c0c4ad414575a5b94`,
- * `packages/contracts/solidity/interfaces/IMidnightBundles.sol`, adapted to the current
- * Midnight `Market` and `Offer` struct fields exported by this package.
+ * Source: `morpho-org/bundles` commit `4c71ac5ee7254b2a448b6054e003bd81e171d86e`,
+ * `src/midnight/IMidnightBundlesV1.sol`, adapted to the current Midnight `Market`
+ * and `Offer` struct fields exported by this package.
  *
  * @example
  * ```ts
@@ -2729,19 +2729,6 @@ export const midnightAbi = [
  * ```
  */
 export const midnightBundlesAbi = [
-  {
-    type: "function",
-    name: "PERMIT2",
-    inputs: [],
-    outputs: [
-      {
-        name: "",
-        type: "address",
-        internalType: "address",
-      },
-    ],
-    stateMutability: "view",
-  },
   {
     type: "function",
     name: "MIDNIGHT",
@@ -2757,7 +2744,7 @@ export const midnightBundlesAbi = [
   },
   {
     type: "function",
-    name: "buyWithUnitsTargetAndWithdrawCollateral",
+    name: "midnightBundlesV1BuyWithUnitsTargetAndWithdrawCollateral",
     inputs: [
       {
         name: "targetUnits",
@@ -2774,6 +2761,11 @@ export const midnightBundlesAbi = [
         type: "address",
         internalType: "address",
       },
+      {
+        name: "reduceOnly",
+        type: "bool",
+        internalType: "bool",
+      },
       {
         name: "loanTokenPermit",
         type: "tuple",
@@ -2807,13 +2799,23 @@ export const midnightBundlesAbi = [
         type: "address",
         internalType: "address",
       },
+      {
+        name: "maxContinuousFee",
+        type: "uint256",
+        internalType: "uint256",
+      },
+      {
+        name: "deadline",
+        type: "uint256",
+        internalType: "uint256",
+      },
     ],
     outputs: [],
     stateMutability: "nonpayable",
   },
   {
     type: "function",
-    name: "supplyCollateralAndSellWithUnitsTarget",
+    name: "midnightBundlesV1SupplyCollateralAndSellWithUnitsTarget",
     inputs: [
       {
         name: "targetUnits",
@@ -2830,6 +2832,11 @@ export const midnightBundlesAbi = [
         type: "address",
         internalType: "address",
       },
+      {
+        name: "reduceOnly",
+        type: "bool",
+        internalType: "bool",
+      },
       {
         name: "receiver",
         type: "address",
@@ -2857,13 +2864,23 @@ export const midnightBundlesAbi = [
         type: "address",
         internalType: "address",
       },
+      {
+        name: "maxContinuousFee",
+        type: "uint256",
+        internalType: "uint256",
+      },
+      {
+        name: "deadline",
+        type: "uint256",
+        internalType: "uint256",
+      },
     ],
     outputs: [],
     stateMutability: "nonpayable",
   },
   {
     type: "function",
-    name: "buyWithAssetsTargetAndWithdrawCollateral",
+    name: "midnightBundlesV1BuyWithAssetsTargetAndWithdrawCollateral",
     inputs: [
       {
         name: "targetBuyerAssets",
@@ -2880,6 +2897,11 @@ export const midnightBundlesAbi = [
         type: "address",
         internalType: "address",
       },
+      {
+        name: "reduceOnly",
+        type: "bool",
+        internalType: "bool",
+      },
       {
         name: "loanTokenPermit",
         type: "tuple",
@@ -2913,13 +2935,23 @@ export const midnightBundlesAbi = [
         type: "address",
         internalType: "address",
       },
+      {
+        name: "maxContinuousFee",
+        type: "uint256",
+        internalType: "uint256",
+      },
+      {
+        name: "deadline",
+        type: "uint256",
+        internalType: "uint256",
+      },
     ],
     outputs: [],
     stateMutability: "nonpayable",
   },
   {
     type: "function",
-    name: "supplyCollateralAndSellWithAssetsTarget",
+    name: "midnightBundlesV1SupplyCollateralAndSellWithAssetsTarget",
     inputs: [
       {
         name: "targetSellerAssets",
@@ -2936,6 +2968,11 @@ export const midnightBundlesAbi = [
         type: "address",
         internalType: "address",
       },
+      {
+        name: "reduceOnly",
+        type: "bool",
+        internalType: "bool",
+      },
       {
         name: "receiver",
         type: "address",
@@ -2963,13 +3000,23 @@ export const midnightBundlesAbi = [
         type: "address",
         internalType: "address",
       },
+      {
+        name: "maxContinuousFee",
+        type: "uint256",
+        internalType: "uint256",
+      },
+      {
+        name: "deadline",
+        type: "uint256",
+        internalType: "uint256",
+      },
     ],
     outputs: [],
     stateMutability: "nonpayable",
   },
   {
     type: "function",
-    name: "repayAndWithdrawCollateral",
+    name: "midnightBundlesV1RepayAndWithdrawCollateral",
     inputs: [
       {
         name: "market",
@@ -3014,13 +3061,23 @@ export const midnightBundlesAbi = [
         type: "address",
         internalType: "address",
       },
+      {
+        name: "deadline",
+        type: "uint256",
+        internalType: "uint256",
+      },
     ],
     outputs: [],
     stateMutability: "nonpayable",
   },
   {
     type: "error",
-    name: "ApproveReturnedFalse",
+    name: "ContinuousFeeAboveMax",
+    inputs: [],
+  },
+  {
+    type: "error",
+    name: "DeadlinePassed",
     inputs: [],
   },
   {
@@ -3043,6 +3100,11 @@ export const midnightBundlesAbi = [
     name: "PctExceeded",
     inputs: [],
   },
+  {
+    type: "error",
+    name: "NotReduceOnly",
+    inputs: [],
+  },
   {
     type: "error",
     name: "SellerAssetsTooLow",