Add tokens/escrow/steel

tokens/escrow/steel/Cargo.toml

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+[workspace]
+resolver = "2"
+members = ["api", "program"]
+
+[workspace.package]
+version = "0.1.0"
+edition = "2021"
+license = "Apache-2.0"
+homepage = ""
+documentation = ""
+repository = ""
+readme = "./README.md"
+keywords = ["solana"]
+
+[workspace.dependencies]
+escrow-api = { path = "./api", version = "0.1.0" }
+bytemuck = "1.14"
+num_enum = "0.7"
+solana-program = "1.18"
+steel = { version = "2.0", features = ["spl"] }
+thiserror = "1.0"
+spl-token = "^4"

tokens/escrow/steel/README.md

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+# Escrow
+
+**Escrow** is a ...
+
+## API
+- [`Consts`](api/src/consts.rs) – Program constants.
+- [`Instruction`](api/src/instruction.rs) – Declared instructions.
+
+## Instructions
+- [`MakeOffer`](program/src/make_offer.rs) – Make an offer ...
+- [`TakerOffer`](program/src/take_offer.rs) – Take an offer ...
+
+## State
+- [`Offer`](api/src/state/offer.rs) – Offer state ...
+
+## How to?
+
+Compile your program:
+
+```sh
+pnpm build
+```
+
+Run tests:
+
+```sh
+pnpm test
+```
+
+Run build and test
+
+```sh
+pnpm build-and-test
+```
+
+Deploy your program:
+
+```sh
+pnpm deploy
+```

tokens/escrow/steel/api/Cargo.toml

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+[package]
+name = "escrow-api"
+description = "API for interacting with the Escrow program"
+version.workspace = true
+edition.workspace = true
+license.workspace = true
+homepage.workspace = true
+documentation.workspace = true
+repository.workspace = true
+readme.workspace = true
+keywords.workspace = true
+
+[dependencies]
+bytemuck.workspace = true
+num_enum.workspace = true
+solana-program.workspace = true
+steel.workspace = true
+thiserror.workspace = true
+spl-token.workspace = true

tokens/escrow/steel/api/src/consts.rs

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+use solana_program::pubkey;
+use steel::Pubkey;
+
+/// Seed of the offer account PDA.
+pub const OFFER_SEED: &[u8] = b"offer";
+
+pub const ASSOCIATED_TOKEN_PROGRAM_ID: Pubkey =
+    pubkey!("ATokenGPvbdGVxr1b2hvZbsiqW5xWH25efTNsLJA8knL");

tokens/escrow/steel/api/src/instruction.rs

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+use steel::*;
+
+#[repr(u8)]
+#[derive(Clone, Copy, Debug, Eq, PartialEq, TryFromPrimitive)]
+pub enum EscrowInstruction {
+    MakeOffer = 0,
+    TakerOffer = 1,
+}
+
+#[repr(C)]
+#[derive(Clone, Copy, Debug, Pod, Zeroable)]
+pub struct MakeOffer {
+    pub id: [u8; 8],
+    pub token_a_offered_amount: [u8; 8],
+    pub token_b_wanted_amount: [u8; 8],
+}
+
+#[repr(C)]
+#[derive(Clone, Copy, Debug, Pod, Zeroable)]
+pub struct TakerOffer {}
+
+instruction!(EscrowInstruction, MakeOffer);
+instruction!(EscrowInstruction, TakerOffer);

tokens/escrow/steel/api/src/lib.rs

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+pub mod consts;
+pub mod instruction;
+pub mod sdk;
+pub mod state;
+
+pub mod prelude {
+    pub use crate::consts::*;
+    pub use crate::instruction::*;
+    pub use crate::sdk::*;
+    pub use crate::state::*;
+}
+
+use steel::*;
+
+// TODO Set program id
+declare_id!("z7msBPQHDJjTvdQRoEcKyENgXDhSRYeHieN1ZMTqo35");

tokens/escrow/steel/api/src/sdk.rs

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+use steel::*;
+
+use crate::prelude::*;
+
+pub fn make_offer(
+    maker: Pubkey,
+    mint_a: Pubkey,
+    mint_b: Pubkey,
+    id: u64,
+    token_a_offered_amount: u64,
+    token_b_wanted_amount: u64,
+) -> Instruction {
+    let (maker_token_account_a, _) = Pubkey::find_program_address(
+        &[maker.as_ref(), spl_token::ID.as_ref(), mint_a.as_ref()],
+        &spl_token::ID,
+    );
+
+    let offer = offer_pda(maker, id).0;
+    let (vault, _) = Pubkey::find_program_address(
+        &[offer.as_ref(), spl_token::ID.as_ref(), mint_a.as_ref()],
+        &spl_token::ID,
+    );
+    Instruction {
+        program_id: crate::ID,
+        accounts: vec![
+            AccountMeta::new(maker, true),
+            AccountMeta::new_readonly(mint_a, false),
+            AccountMeta::new_readonly(mint_b, false),
+            AccountMeta::new(maker_token_account_a, false),
+            AccountMeta::new(offer, false),
+            AccountMeta::new(vault, false),
+            AccountMeta::new_readonly(spl_token::ID, false),
+            AccountMeta::new_readonly(system_program::ID, false),
+            AccountMeta::new_readonly(ASSOCIATED_TOKEN_PROGRAM_ID, false),
+        ],
+        data: MakeOffer {
+            id: id.to_le_bytes(),
+            token_a_offered_amount: token_a_offered_amount.to_le_bytes(),
+            token_b_wanted_amount: token_b_wanted_amount.to_le_bytes(),
+        }
+        .to_bytes(),
+    }
+}
+
+pub fn take_offer(
+    taker: Pubkey,
+    maker: Pubkey,
+    mint_a: Pubkey,
+    mint_b: Pubkey,
+    offer: Pubkey,
+) -> Instruction {
+    let (taker_token_account_a, _) = Pubkey::find_program_address(
+        &[taker.as_ref(), spl_token::ID.as_ref(), mint_a.as_ref()],
+        &spl_token::ID,
+    );
+    let (taker_token_account_b, _) = Pubkey::find_program_address(
+        &[taker.as_ref(), spl_token::ID.as_ref(), mint_b.as_ref()],
+        &spl_token::ID,
+    );
+    let (maker_token_account_b, _) = Pubkey::find_program_address(
+        &[maker.as_ref(), spl_token::ID.as_ref(), mint_b.as_ref()],
+        &spl_token::ID,
+    );
+    let (vault, _) = Pubkey::find_program_address(
+        &[offer.as_ref(), spl_token::ID.as_ref(), mint_a.as_ref()],
+        &spl_token::ID,
+    );
+    Instruction {
+        program_id: crate::ID,
+        accounts: vec![
+            AccountMeta::new(taker, true),
+            AccountMeta::new(maker, false),
+            AccountMeta::new_readonly(mint_a, false),
+            AccountMeta::new_readonly(mint_b, false),
+            AccountMeta::new(taker_token_account_a, false),
+            AccountMeta::new(taker_token_account_b, false),
+            AccountMeta::new(maker_token_account_b, false),
+            AccountMeta::new(offer, false),
+            AccountMeta::new(vault, false),
+            AccountMeta::new_readonly(spl_token::ID, false),
+            AccountMeta::new_readonly(system_program::ID, false),
+            AccountMeta::new_readonly(ASSOCIATED_TOKEN_PROGRAM_ID, false),
+        ],
+        data: TakerOffer {}.to_bytes(),
+    }
+}

tokens/escrow/steel/api/src/state/mod.rs

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+mod offer;
+
+pub use offer::*;
+
+use steel::*;
+
+#[repr(u8)]
+#[derive(Clone, Copy, Debug, Eq, PartialEq, IntoPrimitive, TryFromPrimitive)]
+pub enum EscrowAccount {
+    Offer = 0,
+}

tokens/escrow/steel/api/src/state/offer.rs

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+use steel::*;
+
+use crate::consts::OFFER_SEED;
+
+use super::EscrowAccount;
+
+/// Fetch PDA of the counter account.
+pub fn offer_pda(maker: Pubkey, id: u64) -> (Pubkey, u8) {
+    Pubkey::find_program_address(
+        &[OFFER_SEED, maker.as_ref(), id.to_le_bytes().as_ref()],
+        &crate::id(),
+    )
+}
+
+#[repr(C)]
+#[derive(Clone, Copy, Debug, PartialEq, Pod, Zeroable)]
+pub struct Offer {
+    pub id: [u8; 8],
+    pub maker: Pubkey,
+    pub token_mint_a: Pubkey,
+    pub token_mint_b: Pubkey,
+    pub token_b_wanted_amount: [u8; 8],
+    pub bump: u8,
+}
+
+account!(EscrowAccount, Offer);

tokens/escrow/steel/package.json

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+{
+  "name": "steel",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "pnpm ts-mocha -p ./tsconfig.json -t 1000000 ./tests/*.test.ts",
+    "build-and-test": "cargo build-sbf --manifest-path=./program/Cargo.toml --sbf-out-dir=./tests/fixtures && pnpm test",
+    "build": "cargo build-sbf --manifest-path=./program/Cargo.toml --sbf-out-dir=./program/target/so",
+    "deploy": "solana program deploy ./program/target/so/account_data_program.so"
+  },
+  "keywords": [],
+  "author": "Leo Pham <[email protected]>",
+  "license": "ISC",
+  "dependencies": {
+    "@solana/spl-token": "^0.4.9",
+    "@solana/web3.js": "^1.95.4",
+    "bs58": "^6.0.0"
+  },
+  "devDependencies": {
+    "@types/chai": "^4.3.7",
+    "@types/mocha": "^10.0.9",
+    "@types/node": "^22.7.9",
+    "borsh": "^2.0.0",
+    "chai": "^4.3.7",
+    "mocha": "^10.7.3",
+    "solana-bankrun": "^0.4.0",
+    "ts-mocha": "^10.0.0",
+    "typescript": "^5.6.3"
+  }
+}