feat: steel counter

Author: thearyanag

basics/counter/steel/.gitignore

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+target
+test-ledger
+node_modules

basics/counter/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 = ""
+respository = ""
+readme = "./README.md"
+keywords = ["solana"]
+
+[workspace.dependencies]
+steel-api = { path = "./api", version = "0.1.0" }
+bytemuck = "1.14"
+num_enum = "0.7"
+solana-program = "1.18"
+steel = "1.3"
+thiserror = "1.0"

basics/counter/steel/README.md

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+# Steel
+
+**Steel** is a ...
+        
+## API
+- [`Consts`](api/src/consts.rs) – Program constants.
+- [`Error`](api/src/error.rs) – Custom program errors.
+- [`Event`](api/src/event.rs) – Custom program events.
+- [`Instruction`](api/src/instruction.rs) – Declared instructions.
+
+## Instructions
+- [`Hello`](program/src/hello.rs) – Hello ...
+
+## State
+- [`User`](api/src/state/user.rs) – User ...
+
+## Tests
+
+To run the test suit, use the Solana toolchain:
+```
+cargo test-sbf         
+```

basics/counter/steel/api/Cargo.toml

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+[package]
+name = "steel-api"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+bytemuck.workspace = true
+num_enum.workspace = true
+solana-program.workspace = true
+steel.workspace = true
+thiserror.workspace = true

basics/counter/steel/api/src/consts.rs

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+/// Seed of the counter account PDA.
+pub const COUNTER: &[u8] = b"counter";

basics/counter/steel/api/src/error.rs

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+use steel::*;
+
+#[derive(Debug, Error, Clone, Copy, PartialEq, Eq, IntoPrimitive)]
+#[repr(u32)]
+pub enum SteelError {
+    #[error("This is a dummy error")]
+    Dummy = 0,
+}
+
+error!(SteelError);

basics/counter/steel/api/src/instruction.rs

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+use steel::*;
+
+#[repr(u8)]
+#[derive(Clone, Copy, Debug, Eq, PartialEq, TryFromPrimitive)]
+pub enum SteelInstruction {
+    Initialize = 0,
+    Increment = 1,
+}
+
+#[repr(C)]
+#[derive(Clone, Copy, Debug, Pod, Zeroable)]
+pub struct Initialize {}
+
+#[repr(C)]
+#[derive(Clone, Copy, Debug, Pod, Zeroable)]
+pub struct Increment {}
+
+instruction!(SteelInstruction, Initialize);
+instruction!(SteelInstruction, Increment);

basics/counter/steel/api/src/lib.rs

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+pub mod consts;
+pub mod error;
+pub mod instruction;
+pub mod sdk;
+pub mod state;
+
+pub mod prelude {
+    pub use crate::consts::*;
+    pub use crate::error::*;
+    pub use crate::instruction::*;
+    pub use crate::sdk::*;
+    pub use crate::state::*; 
+}
+
+use steel::*;
+
+// TODO Set program id
+declare_id!("11111111111111111111111111111112"); 

basics/counter/steel/api/src/sdk.rs

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+use steel::*;
+
+use crate::prelude::*;
+
+pub fn initialize(signer: Pubkey) -> Instruction {
+    Instruction {
+        program_id: crate::ID,
+        accounts: vec![
+            AccountMeta::new(signer, true),
+            AccountMeta::new(counter_pda().0, false),
+            AccountMeta::new_readonly(system_program::ID, false),
+        ],
+        data: Initialize {}.to_bytes(),
+    }
+}
+
+pub fn increment(signer: Pubkey) -> Instruction {
+    Instruction {
+        program_id: crate::ID,
+        accounts: vec![
+            AccountMeta::new(signer, true),
+            AccountMeta::new(counter_pda().0, false),
+        ],
+        data : Increment {}.to_bytes(),
+    }
+}

basics/counter/steel/api/src/state/counter.rs

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+use steel::*;
+
+use super::SteelAccount;
+
+#[repr(C)]
+#[derive(Clone, Copy, Debug, PartialEq, Pod, Zeroable)]
+pub struct Counter {
+    pub value: u64 
+}
+
+account!(SteelAccount, Counter);