feat(sdk-rs): add pda module

sdk/rs/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "squads-multisig"
-version = "0.0.4"
+version = "0.0.5"
 description = "An SDK for building automated programs on Solana"
 edition = "2021"
 license = "AGPL-3.0-or-later"

sdk/rs/src/lib.rs

@@ -1,3 +1,5 @@
+pub mod pda;
+
 // Re-export dependencies for convenience
 pub use solana_client;
 

sdk/rs/src/pda.rs

@@ -0,0 +1,76 @@
+use crate::solana_program::pubkey::Pubkey;
+use squads_multisig_program::{
+    SEED_MULTISIG, SEED_PREFIX, SEED_PROPOSAL, SEED_SPENDING_LIMIT, SEED_TRANSACTION, SEED_VAULT,
+};
+
+pub fn get_multisig_pda(create_key: &Pubkey, program_id: Option<&Pubkey>) -> (Pubkey, u8) {
+    Pubkey::find_program_address(
+        &[SEED_PREFIX, SEED_MULTISIG, create_key.to_bytes().as_ref()],
+        program_id.unwrap_or(&squads_multisig_program::ID),
+    )
+}
+
+pub fn get_vault_pda(
+    multisig_pda: &Pubkey,
+    index: u8,
+    program_id: Option<&Pubkey>,
+) -> (Pubkey, u8) {
+    Pubkey::find_program_address(
+        &[
+            SEED_PREFIX,
+            multisig_pda.to_bytes().as_ref(),
+            SEED_VAULT,
+            &[index],
+        ],
+        program_id.unwrap_or(&squads_multisig_program::ID),
+    )
+}
+
+pub fn get_transaction_pda(
+    multisig_pda: &Pubkey,
+    index: u8,
+    program_id: Option<&Pubkey>,
+) -> (Pubkey, u8) {
+    Pubkey::find_program_address(
+        &[
+            SEED_PREFIX,
+            multisig_pda.to_bytes().as_ref(),
+            SEED_TRANSACTION,
+            &[index],
+        ],
+        program_id.unwrap_or(&squads_multisig_program::ID),
+    )
+}
+
+pub fn get_proposal_pda(
+    multisig_pda: &Pubkey,
+    transaction_index: u64,
+    program_id: Option<&Pubkey>,
+) -> (Pubkey, u8) {
+    Pubkey::find_program_address(
+        &[
+            SEED_PREFIX,
+            multisig_pda.to_bytes().as_ref(),
+            SEED_TRANSACTION,
+            &transaction_index.to_le_bytes(),
+            SEED_PROPOSAL,
+        ],
+        program_id.unwrap_or(&squads_multisig_program::ID),
+    )
+}
+
+pub fn get_spending_limit_pda(
+    multisig_pda: &Pubkey,
+    create_key: &Pubkey,
+    program_id: Option<&Pubkey>,
+) -> (Pubkey, u8) {
+    Pubkey::find_program_address(
+        &[
+            SEED_PREFIX,
+            multisig_pda.to_bytes().as_ref(),
+            SEED_SPENDING_LIMIT,
+            create_key.to_bytes().as_ref(),
+        ],
+        program_id.unwrap_or(&squads_multisig_program::ID),
+    )
+}