add example and instructions for pda

examples/program_deployment/src/bin/run_hello_world_with_authorization_through_tail_call_with_pda.rs

@@ -0,0 +1,62 @@
+use nssa::{
+    AccountId, PublicTransaction,
+    program::Program,
+    public_transaction::{Message, WitnessSet},
+};
+use nssa_core::program::PdaSeed;
+use wallet::{WalletCore, helperfunctions::fetch_config};
+
+// Before running this example, compile the `simple_tail_call.rs` guest program with:
+//
+//   cargo risczero build --manifest-path examples/program_deployment/methods/guest/Cargo.toml
+//
+// Note: you must run the above command from the root of the `lssa` repository.
+// Note: The compiled binary file is stored in
+// methods/guest/target/riscv32im-risc0-zkvm-elf/docker/simple_tail_call.bin
+//
+//
+// Usage:
+//   cargo run --bin run_hello_world_with_authorization_through_tail_call_with_pda
+// /path/to/guest/binary <account_id>
+//
+// Example:
+//   cargo run --bin run_hello_world_with_authorization_through_tail_call_with_pda \
+//     methods/guest/target/riscv32im-risc0-zkvm-elf/docker/tail_call_with_pda.bin
+
+const PDA_SEED: PdaSeed = PdaSeed::new([37; 32]);
+
+#[tokio::main]
+async fn main() {
+    // Load wallet config and storage
+    let wallet_config = fetch_config().await.unwrap();
+    let wallet_core = WalletCore::start_from_config_update_chain(wallet_config)
+        .await
+        .unwrap();
+
+    // Parse arguments
+    // First argument is the path to the program binary
+    let program_path = std::env::args_os().nth(1).unwrap().into_string().unwrap();
+
+    // Load the program
+    let bytecode: Vec<u8> = std::fs::read(program_path).unwrap();
+    let program = Program::new(bytecode).unwrap();
+
+    // Compute the PDA to pass it as input account to the public execution
+    let pda = AccountId::from((&program.id(), &PDA_SEED));
+    let account_ids = vec![pda];
+    let instruction_data = ();
+    let nonces = vec![];
+    let signing_keys = [];
+    let message = Message::try_new(program.id(), account_ids, nonces, instruction_data).unwrap();
+    let witness_set = WitnessSet::for_message(&message, &signing_keys);
+    let tx = PublicTransaction::new(message, witness_set);
+
+    // Submit the transaction
+    let _response = wallet_core
+        .sequencer_client
+        .send_tx_public(tx)
+        .await
+        .unwrap();
+
+    println!("The program derived account id is: {pda}");
+}