Initial commit from template

.eslintrc.js

@@ -0,0 +1,23 @@
+module.exports = {
+  root: true,
+  env: {
+    es2020: true,
+    node: true,
+  },
+  extends: [
+    "eslint:recommended",
+    "plugin:@typescript-eslint/recommended",
+  ],
+  parser: "@typescript-eslint/parser",
+  parserOptions: {
+    ecmaVersion: 2020,
+    sourceType: "module",
+    project: "./tsconfig.json",
+  },
+  ignorePatterns: ["**/target/**", "node_modules"],
+  rules: {
+    "@typescript-eslint/no-explicit-any": "off",
+    "@typescript-eslint/no-unused-vars": ["warn", { "argsIgnorePattern": "^_" }],
+    "@typescript-eslint/ban-ts-comment": "off",
+  },
+};

.gitignore

@@ -0,0 +1,3 @@
+target/
+*.so
+.DS_Store

.stackclass/compile.sh

@@ -0,0 +1,11 @@
+#!/bin/sh
+#
+# This script is used to compile your program on StackClass
+#
+# This runs before .stackclass/run.sh
+#
+# Learn more: https://docs.stackclass.dev/challenges/program-interface
+
+set -e # Exit on failure
+
+cargo build --release

.stackclass/run.sh

@@ -0,0 +1,11 @@
+#!/bin/sh
+#
+# This script is used to run your program on StackClass
+#
+# This runs after .stackclass/compile.sh
+#
+# Learn more: https://docs.stackclass.dev/challenges/program-interface
+
+set -e # Exit on failure
+
+exec target/release/stackclass-solana-lending-program "$@"

Anchor.toml

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+[toolchain]
+anchor_version = "0.30.1"
+
+[features]
+resolution = true
+skip-lint = false
+
+[programs.localnet]
+lending = "LendZ1111111111111111111111111111111111111"
+
+[registry]
+url = "https://api.apr.dev"
+
+[provider]
+cluster = "Localnet"
+wallet = "~/.config/solana/id.json"
+
+[scripts]
+test = "yarn run ts-mocha -p ./tsconfig.json -t 1000000 tests/**/*.ts"

Cargo.toml

@@ -0,0 +1,26 @@
+[workspace]
+members = [
+    "programs/*"
+]
+resolver = "2"
+
+[package]
+name = "stackclass-solana-lending-program"
+version = "0.1.0"
+authors = ["StackClass <hello@stackclass.dev>"]
+edition = "2021"
+
+[dependencies]
+serde = { version = "1", features = ["derive"] }
+serde_json = "1"
+regex = "1"
+
+[profile.release]
+overflow-checks = true
+lto = "fat"
+codegen-units = 1
+
+[profile.release.build-override]
+opt-level = 3
+incremental = false
+codegen-units = 1

migrations/deploy.ts

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+// Migrations are managed by Anchor
+// This file can be used for custom deployment scripts
+
+import * as anchor from "@coral-xyz/anchor";
+
+async function main() {
+  console.log("Running deployment script...");
+  // Custom deployment logic can be added here
+}
+
+main().catch((error) => {
+  console.error(error);
+  process.exitCode = 1;
+});

package.json

@@ -0,0 +1,24 @@
+{
+  "name": "solana-lending",
+  "version": "0.1.0",
+  "description": "Solana lending program built with Anchor",
+  "main": "index.js",
+  "scripts": {
+    "test": "anchor test",
+    "lint": "eslint --ext .ts tests/",
+    "build": "anchor build",
+    "deploy": "anchor deploy"
+  },
+  "dependencies": {
+    "@coral-xyz/anchor": "^0.30.0",
+    "@solana/web3.js": "^1.87.0"
+  },
+  "devDependencies": {
+    "@types/mocha": "^10.0.0",
+    "@types/node": "^20.0.0",
+    "eslint": "^8.0.0",
+    "mocha": "^10.0.0",
+    "ts-mocha": "^10.0.0",
+    "typescript": "^5.0.0"
+  }
+}

programs/lending-program/Cargo.toml

@@ -0,0 +1,24 @@
+[package]
+name = "lending-program"
+version = "0.1.0"
+description = "Created with Anchor"
+edition = "2021"
+
+[lib]
+crate-type = ["cdylib", "lib"]
+name = "lending_program"
+
+[features]
+default = []
+cpi = ["no-entrypoint"]
+no-entrypoint = []
+no-idl = []
+no-log-ix-name = []
+idl-build = ["anchor-lang/idl-build", "anchor-spl/idl-build"]
+
+[dependencies]
+anchor-lang = { version="0.30.1", features=["init-if-needed"] }
+anchor-spl = "0.30.1"
+pyth-sdk-solana = "0.10.1"
+pyth-solana-receiver-sdk = "0.3.1"
+solana-program = "1.18.17"

programs/lending-program/src/lib.rs

@@ -0,0 +1,19 @@
+use anchor_lang::prelude::*;
+
+declare_id!("LendZ1111111111111111111111111111111111111");
+
+#[program]
+pub mod lending_program {
+    use super::*;
+
+    pub fn initialize(ctx: Context<Initialize>) -> Result<()> {
+        Ok(())
+    }
+}
+
+#[derive(Accounts)]
+pub struct Initialize<'info> {
+    #[account(mut)]
+    pub user: Signer<'info>,
+    pub system_program: Program<'info, System>,
+}

src/main.rs

@@ -0,0 +1,196 @@
+use std::fs;
+use std::path::PathBuf;
+use std::env;
+use serde::{Deserialize, Serialize};
+
+#[derive(Debug, Serialize, Deserialize)]
+struct ProgramInfo {
+    program_id: String,
+    instructions: Vec<InstructionInfo>,
+    accounts: Vec<AccountInfo>,
+    errors: Vec<ErrorInfo>,
+    structs: Vec<StructInfo>,
+}
+
+#[derive(Debug, Serialize, Deserialize)]
+struct InstructionInfo {
+    name: String,
+    arguments: Vec<ArgumentInfo>,
+}
+
+#[derive(Debug, Serialize, Deserialize)]
+struct ArgumentInfo {
+    name: String,
+    type_name: String,
+}
+
+#[derive(Debug, Serialize, Deserialize)]
+struct AccountInfo {
+    name: String,
+    fields: Vec<FieldInfo>,
+}
+
+#[derive(Debug, Serialize, Deserialize)]
+struct FieldInfo {
+    name: String,
+    type_name: String,
+}
+
+#[derive(Debug, Serialize, Deserialize)]
+struct ErrorInfo {
+    name: String,
+    code: u32,
+    message: String,
+}
+
+#[derive(Debug, Serialize, Deserialize)]
+struct StructInfo {
+    name: String,
+    fields: Vec<FieldInfo>,
+}
+
+fn main() {
+    let args: Vec<String> = env::args().collect();
+
+    if args.len() > 1 && args[1] == "dump_info" {
+        dump_program_info();
+    } else {
+        // Default behavior: do nothing
+        println!("Solana Lending Program - Use 'dump_info' command to export program definition");
+    }
+}
+
+fn dump_program_info() {
+    let project_root = env::current_dir().unwrap_or_else(|_| PathBuf::from("."));
+    let lib_path = project_root.join("programs/lending-program/src/lib.rs");
+
+    let lib_content = fs::read_to_string(&lib_path).unwrap_or_else(|_| {
+        eprintln!("Warning: Could not read lib.rs at {:?}", lib_path);
+        String::new()
+    });
+
+    let program_info = parse_program_info(&lib_content);
+
+    println!("{}", serde_json::to_string_pretty(&program_info).unwrap());
+}
+
+fn parse_program_info(content: &str) -> ProgramInfo {
+    let mut program_info = ProgramInfo {
+        program_id: String::new(),
+        instructions: Vec::new(),
+        accounts: Vec::new(),
+        errors: Vec::new(),
+        structs: Vec::new(),
+    };
+
+    // Parse program_id
+    if let Some(captures) = regex::Regex::new(r#"declare_id!\("([^"]+)"\)"#).unwrap().captures(content) {
+        if let Some(id) = captures.get(1) {
+            program_info.program_id = id.as_str().to_string();
+        }
+    }
+
+    // Parse instructions (pub fn)
+    let instruction_re = regex::Regex::new(r#"pub fn (\w+)\(ctx: Context<([^>]+)>(?:, ([^)]+))?\)"#).unwrap();
+    for caps in instruction_re.captures_iter(content) {
+        let name = caps.get(1).map(|m| m.as_str().to_string()).unwrap_or_default();
+        let _context = caps.get(2).map(|m| m.as_str().to_string()).unwrap_or_default();
+        let args_str = caps.get(3).map(|m| m.as_str().to_string()).unwrap_or_default();
+
+        let mut arguments = Vec::new();
+        if !args_str.is_empty() {
+            for arg in args_str.split(',') {
+                let arg = arg.trim();
+                if let Some((name_part, type_part)) = arg.split_once(':') {
+                    arguments.push(ArgumentInfo {
+                        name: name_part.trim().to_string(),
+                        type_name: type_part.trim().to_string(),
+                    });
+                }
+            }
+        }
+
+        program_info.instructions.push(InstructionInfo {
+            name,
+            arguments,
+        });
+    }
+
+    // Parse account structures (#[derive(Accounts)] pub struct)
+    let account_re = regex::Regex::new(r#"#\[derive\(Accounts\)\]\s+pub struct (\w+)<[^>]*>\s*\{([^}]+)\}"#).unwrap();
+    for caps in account_re.captures_iter(content) {
+        let name = caps.get(1).map(|m| m.as_str().to_string()).unwrap_or_default();
+        let fields_str = caps.get(2).map(|m| m.as_str().to_string()).unwrap_or_default();
+
+        let mut fields = Vec::new();
+        let mut current_field = String::new();
+
+        for line in fields_str.lines() {
+            let line = line.trim();
+            if line.is_empty() {
+                continue;
+            }
+
+            // If it's an attribute line, continue accumulating
+            if line.starts_with('#') {
+                current_field.push_str(line);
+                current_field.push(' ');
+            } else {
+                // If it's a field definition line
+                if let Some((name_part, type_part)) = line.split_once(':') {
+                    let field_name = name_part.split_whitespace().last().unwrap_or("").to_string();
+                    fields.push(FieldInfo {
+                        name: field_name,
+                        type_name: type_part.trim().to_string(),
+                    });
+                }
+                current_field.clear();
+            }
+        }
+
+        program_info.accounts.push(AccountInfo { name, fields });
+    }
+
+    // Parse errors (pub enum Error)
+    let error_re = regex::Regex::new(r#"pub enum Error\s*\{([^}]+)\}"#).unwrap();
+    if let Some(caps) = error_re.captures(content) {
+        let errors_str = caps.get(1).map(|m| m.as_str().to_string()).unwrap_or_default();
+        for (idx, line) in errors_str.lines().enumerate() {
+            let line = line.trim();
+            if line.is_empty() || line.starts_with('#') {
+                continue;
+            }
+            let name = line.split_whitespace().next().unwrap_or("").to_string();
+            program_info.errors.push(ErrorInfo {
+                name: name.clone(),
+                code: idx as u32 + 6000,
+                message: name,
+            });
+        }
+    }
+
+    // Parse regular structs (pub struct)
+    let struct_re = regex::Regex::new(r#"pub struct (\w+)\s*\{([^}]+)\}"#).unwrap();
+    for caps in struct_re.captures_iter(content) {
+        let name = caps.get(1).map(|m| m.as_str().to_string()).unwrap_or_default();
+        let fields_str = caps.get(2).map(|m| m.as_str().to_string()).unwrap_or_default();
+
+        let mut fields = Vec::new();
+        for line in fields_str.lines() {
+            let line = line.trim();
+            if line.is_empty() || line.starts_with('#') {
+                continue;
+            }
+            if let Some((name_part, type_part)) = line.split_once(':') {
+                fields.push(FieldInfo {
+                    name: name_part.trim().to_string(),
+                    type_name: type_part.trim().to_string(),
+                });
+            }
+        }
+
+        program_info.structs.push(StructInfo { name, fields });
+    }
+
+    program_info
+}

stackclass.yml

@@ -0,0 +1,18 @@
+# Set this to true if you want debug logs.
+#
+# These can be VERY verbose, so we suggest turning them off
+# unless you really need them.
+debug: false
+
+# Use this to change the Rust version used to run your code
+# on StackClass.
+#
+# Available versions: rust-1.87
+language_pack: rust-1.87
+
+# The executable required to build and run the this project,
+# along with its minimum required version.
+required_executable: cargo (1.87)
+
+# The main source file that users can edit for this project.
+user_editable_file: programs/lending-program/src/lib.rs

test_cases.json

@@ -0,0 +1,42 @@
+[
+  {"slug": "be1", "title": "Environment Setup", "log_prefix": "env", "category": "base", "description": "Setup development environment"},
+  {"slug": "rs2", "title": "Rust Basics", "log_prefix": "rust", "category": "base", "description": "Learn Rust fundamentals"},
+  {"slug": "sm3", "title": "Solana Model", "log_prefix": "solana", "category": "base", "description": "Understand Solana program model"},
+  {"slug": "at4", "title": "Anchor Try", "log_prefix": "anchor", "category": "base", "description": "Try Anchor framework"},
+  {"slug": "st5", "title": "SPL Token Basics", "log_prefix": "token", "category": "base", "description": "Learn SPL Token basics"},
+  {"slug": "cp6", "title": "Basic Deposit", "log_prefix": "deposit", "category": "base", "description": "Implement basic deposit function"},
+  {"slug": "tt7", "title": "Basic Withdraw", "log_prefix": "withdraw", "category": "base", "description": "Implement basic withdraw function"},
+  {"slug": "pa1", "title": "PDA Concept", "log_prefix": "pda1", "category": "pda", "description": "Learn PDA concept"},
+  {"slug": "pa2", "title": "PDA Derivation", "log_prefix": "pda2", "category": "pda", "description": "Implement PDA derivation"},
+  {"slug": "pa3", "title": "Bump Seeds", "log_prefix": "pda3", "category": "pda", "description": "Use bump seeds with PDAs"},
+  {"slug": "pa4", "title": "PDA Practice", "log_prefix": "pda4", "category": "pda", "description": "Practice PDA implementation"},
+  {"slug": "tr1", "title": "Treasury Intro", "log_prefix": "tr1", "category": "treasury", "description": "Introduction to treasury"},
+  {"slug": "tr2", "title": "Treasury Creation", "log_prefix": "tr2", "category": "treasury", "description": "Create treasury account"},
+  {"slug": "tr3", "title": "Treasury Security", "log_prefix": "tr3", "category": "treasury", "description": "Implement treasury security"},
+  {"slug": "tr4", "title": "Treasury Practice", "log_prefix": "tr4", "category": "treasury", "description": "Practice treasury implementation"},
+  {"slug": "as1", "title": "Bank Account", "log_prefix": "as1", "category": "account_structure", "description": "Define bank account struct"},
+  {"slug": "as2", "title": "User Account", "log_prefix": "as2", "category": "account_structure", "description": "Define user account struct"},
+  {"slug": "as3", "title": "Account Space", "log_prefix": "as3", "category": "account_structure", "description": "Calculate account space"},
+  {"slug": "as4", "title": "Account Practice", "log_prefix": "as4", "category": "account_structure", "description": "Practice account implementation"},
+  {"slug": "lc1", "title": "Borrow Basics", "log_prefix": "lc1", "category": "lending_core", "description": "Implement borrow function"},
+  {"slug": "lc2", "title": "Repay Basics", "log_prefix": "lc2", "category": "lending_core", "description": "Implement repay function"},
+  {"slug": "lc3", "title": "LTV Calculation", "log_prefix": "lc3", "category": "lending_core", "description": "Calculate LTV and health factor"},
+  {"slug": "lc4", "title": "Core Practice", "log_prefix": "lc4", "category": "lending_core", "description": "Practice core lending functions"},
+  {"slug": "or1", "title": "Oracle Concept", "log_prefix": "or1", "category": "oracle", "description": "Learn oracle concept"},
+  {"slug": "or2", "title": "Pyth Integration", "log_prefix": "or2", "category": "oracle", "description": "Integrate with Pyth"},
+  {"slug": "or3", "title": "Price Fetching", "log_prefix": "or3", "category": "oracle", "description": "Fetch price from oracle"},
+  {"slug": "or4", "title": "Oracle Practice", "log_prefix": "or4", "category": "oracle", "description": "Practice oracle implementation"},
+  {"slug": "li1", "title": "Health Factor", "log_prefix": "li1", "category": "liquidation", "description": "Calculate health factor"},
+  {"slug": "li2", "title": "Liquidation Trigger", "log_prefix": "li2", "category": "liquidation", "description": "Trigger liquidation on low health"},
+  {"slug": "li3", "title": "Liquidation Process", "log_prefix": "li3", "category": "liquidation", "description": "Implement liquidation process"},
+  {"slug": "li4", "title": "Liquidation Bonus", "log_prefix": "li4", "category": "liquidation", "description": "Add liquidation bonus"},
+  {"slug": "li5", "title": "Liquidation Practice", "log_prefix": "li5", "category": "liquidation", "description": "Practice liquidation"},
+  {"slug": "in1", "title": "Interest Basics", "log_prefix": "in1", "category": "interest", "description": "Implement interest calculation"},
+  {"slug": "in2", "title": "Accrued Interest", "log_prefix": "in2", "category": "interest", "description": "Track accrued interest"},
+  {"slug": "in3", "title": "Rate Models", "log_prefix": "in3", "category": "interest", "description": "Implement interest rate models"},
+  {"slug": "in4", "title": "Interest Practice", "log_prefix": "in4", "category": "interest", "description": "Practice interest implementation"},
+  {"slug": "se1", "title": "Common Vulnerabilities", "log_prefix": "se1", "category": "security", "description": "Handle common vulnerabilities"},
+  {"slug": "se2", "title": "Reentrancy Protection", "log_prefix": "se2", "category": "security", "description": "Implement reentrancy guard"},
+  {"slug": "se3", "title": "Account Validation", "log_prefix": "se3", "category": "security", "description": "Validate accounts properly"},
+  {"slug": "se4", "title": "Security Practice", "log_prefix": "se4", "category": "security", "description": "Practice security patterns"}
+]

tests/lending.ts

@@ -0,0 +1,34 @@
+import * as anchor from "@coral-xyz/anchor";
+import { Program } from "@coral-xyz/anchor";
+import { Lending } from "../target/types/lending";
+
+describe("lending", () => {
+  const provider = anchor.AnchorProvider.env();
+  anchor.setProvider(provider);
+
+  const program = anchor.workspace.Lending as Program<Lending>;
+
+  it("Initialize bank", async () => {
+    // Test initialization
+  });
+
+  it("Initialize user", async () => {
+    // Test user initialization
+  });
+
+  it("Deposit tokens", async () => {
+    // Test deposit functionality
+  });
+
+  it("Withdraw tokens", async () => {
+    // Test withdraw functionality
+  });
+
+  it("Borrow tokens", async () => {
+    // Test borrow functionality
+  });
+
+  it("Repay loan", async () => {
+    // Test repay functionality
+  });
+});

tsconfig.json

@@ -0,0 +1,14 @@
+{
+  "compilerOptions": {
+    "types": ["mocha"],
+    "lib": ["esnext"],
+    "module": "commonjs",
+    "target": "es2020",
+    "moduleResolution": "node",
+    "esModuleInterop": true,
+    "forceConsistentCasingInFileNames": true,
+    "strict": true,
+    "skipLibCheck": true,
+    "resolveJsonModule": true
+  }
+}

your_program.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+#
+# Use this script to run your program LOCALLY.
+#
+# Note: Changing this script WILL NOT affect how StackClass runs your program.
+#
+# Learn more: https://docs.stackclass.dev/challenges/program-interface
+
+set -e # Exit early if any commands fail
+
+# Copied from .stackclass/compile.sh
+#
+# - Edit this to change how your program compiles locally
+# - Edit .stackclass/compile.sh to change how your program compiles remotely
+(
+  cd "$(dirname "$0")" # Ensure compile steps are run within the repository directory
+  cargo build --release
+)
+
+# Copied from .stackclass/run.sh
+#
+# - Edit this to change how your program runs locally
+# - Edit .stackclass/run.sh to change how your program runs remotely
+exec target/release/stackclass-solana-lending-program "$@"