Add favorites and escrow projects from professional-education repo

Minor biome fixes

Author: mikemaccana

basics/favorites/anchor/.gitignore

@@ -0,0 +1,9 @@
+
+.anchor
+.DS_Store
+target
+**/*.rs.bk
+node_modules
+test-ledger
+.yarn
+.env

basics/favorites/anchor/.prettierignore

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+
+.anchor
+.DS_Store
+target
+node_modules
+dist
+build
+test-ledger

basics/favorites/anchor/Anchor.toml

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+[toolchain]
+
+[features]
+resolution = true
+skip-lint = false
+
+[programs.localnet]
+favorites = "ww9C83noARSQVBnqmCUmaVdbJjmiwcV9j2LkXYMoUCV"
+
+[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"

basics/favorites/anchor/Cargo.toml

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+[workspace]
+members = [
+    "programs/*"
+]
+resolver = "2"
+
+[profile.release]
+overflow-checks = true
+lto = "fat"
+codegen-units = 1
+
+[profile.release.build-override]
+opt-level = 3
+incremental = false
+codegen-units = 1

basics/favorites/anchor/README.md

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+# Favorites
+
+This is a basic Anchor app using PDAs to store data for a user, and Anchor's account checks to ensure each user is only allowed to modify their own data.
+
+It's used by the [https://github.com/solana-developers/professional-education](Solana Professional Education) course.
+
+## Usage
+
+`anchor test`, `anchor deploy` etc.

basics/favorites/anchor/migrations/deploy.ts

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+// Migrations are an early feature. Currently, they're nothing more than this
+// single deploy script that's invoked from the CLI, injecting a provider
+// configured from the workspace's Anchor.toml.
+
+const anchor = require('@coral-xyz/anchor');
+
+module.exports = async (provider) => {
+  // Configure client to use the provider.
+  anchor.setProvider(provider);
+
+  // Add your deploy script here.
+};

basics/favorites/anchor/package.json

@@ -0,0 +1,21 @@
+{
+  "scripts": {
+    "lint:fix": "prettier */*.js \"*/**/*{.js,.ts}\" -w",
+    "lint": "prettier */*.js \"*/**/*{.js,.ts}\" --check"
+  },
+  "dependencies": {
+    "@coral-xyz/anchor": "^0.30.0",
+    "@solana-developers/helpers": "^2.0.0"
+  },
+  "license": "UNLICENSED",
+  "devDependencies": {
+    "@types/bn.js": "^5.1.0",
+    "@types/chai": "^4.3.0",
+    "@types/mocha": "^9.0.0",
+    "chai": "^4.3.4",
+    "mocha": "^9.0.3",
+    "prettier": "^2.6.2",
+    "ts-mocha": "^10.0.0",
+    "typescript": "^4.3.5"
+  }
+}

basics/favorites/anchor/programs/favorites/Cargo.toml

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+[package]
+name = "favorites"
+version = "0.1.0"
+description = "Created with Anchor"
+edition = "2021"
+
+[lib]
+crate-type = ["cdylib", "lib"]
+name = "favorites"
+
+[features]
+no-entrypoint = []
+no-idl = []
+no-log-ix-name = []
+cpi = ["no-entrypoint"]
+default = []
+idl-build = ["anchor-lang/idl-build"]
+
+[dependencies]
+anchor-lang = {version = "0.30.0", features = ["init-if-needed"]}
+solana-program = "=1.18.5"

basics/favorites/anchor/programs/favorites/Xargo.toml

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+[target.bpfel-unknown-unknown.dependencies.std]
+features = []

basics/favorites/anchor/programs/favorites/src/lib.rs

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+use anchor_lang::prelude::*;
+// Our program's address!
+// This matches the key in the target/deploy directory
+declare_id!("ww9C83noARSQVBnqmCUmaVdbJjmiwcV9j2LkXYMoUCV");
+
+// Anchor programs always use 8 bits for the discriminator
+pub const ANCHOR_DISCRIMINATOR_SIZE: usize = 8;
+
+// Our Solana program! 
+#[program]
+pub mod favorites {
+    use super::*;
+
+    // Our instruction handler! It sets the user's favorite number and color
+    pub fn set_favorites(context: Context<SetFavorites>, number: u64, color: String, hobbies: Vec<String>) -> Result<()> {
+        let user_public_key = context.accounts.user.key();
+        msg!("Greetings from {}", context.program_id);
+        msg!(
+            "User {user_public_key}'s favorite number is {number}, favorite color is: {color}",
+        );
+
+        msg!(
+            "User's hobbies are: {:?}",
+            hobbies
+        ); 
+
+        context.accounts.favorites.set_inner(Favorites {
+            number,
+            color,
+            hobbies
+        });
+        Ok(())
+    }
+
+    // We can also add a get_favorites instruction handler to return the user's favorite number and color
+}
+
+// What we will put inside the Favorites PDA
+#[account]
+#[derive(InitSpace)]
+pub struct Favorites {
+    pub number: u64,
+
+    #[max_len(50)]
+    pub color: String,
+
+    #[max_len(5, 50)]
+    pub hobbies: Vec<String>
+}
+// When people call the set_favorites instruction, they will need to provide the accounts that will be modifed. This keeps Solana fast!
+#[derive(Accounts)]
+pub struct SetFavorites<'info> {
+    #[account(mut)]
+    pub user: Signer<'info>,
+
+    #[account(
+        init_if_needed, 
+        payer = user, 
+        space = ANCHOR_DISCRIMINATOR_SIZE + Favorites::INIT_SPACE, 
+        seeds=[b"favorites", user.key().as_ref()],
+    bump)]
+    pub favorites: Account<'info, Favorites>,
+
+    pub system_program: Program<'info, System>,
+}