97 lines
3.0 KiB
Rust
97 lines
3.0 KiB
Rust
use crate::budget_expr::{BudgetExpr, Condition};
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use crate::budget_instruction::BudgetInstruction;
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use crate::budget_state::BudgetState;
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use crate::id;
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use bincode::serialized_size;
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use chrono::prelude::{DateTime, Utc};
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use solana_sdk::pubkey::Pubkey;
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use solana_sdk::script::Script;
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use solana_sdk::signature::{Keypair, KeypairUtil};
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use solana_sdk::system_instruction::SystemInstruction;
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pub struct BudgetScript {}
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impl BudgetScript {
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pub fn new_account(
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from: &Pubkey,
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contract: &Pubkey,
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lamports: u64,
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expr: BudgetExpr,
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) -> Script {
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let space = serialized_size(&BudgetState::new(expr.clone())).unwrap();
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let instructions = vec![
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SystemInstruction::new_program_account(&from, contract, lamports, space, &id()),
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BudgetInstruction::new_initialize_account(contract, expr),
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];
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Script::new(instructions)
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}
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/// Create a new payment script.
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pub fn pay(from: &Pubkey, to: &Pubkey, lamports: u64) -> Script {
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let contract = Keypair::new().pubkey();
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let expr = BudgetExpr::new_payment(lamports, to);
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Self::new_account(from, &contract, lamports, expr)
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}
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/// Create a future payment script.
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pub fn pay_on_date(
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from: &Pubkey,
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to: &Pubkey,
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contract: &Pubkey,
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dt: DateTime<Utc>,
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dt_pubkey: &Pubkey,
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cancelable: Option<Pubkey>,
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lamports: u64,
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) -> Script {
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let expr = if let Some(from) = cancelable {
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BudgetExpr::Or(
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(
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Condition::Timestamp(dt, *dt_pubkey),
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Box::new(BudgetExpr::new_payment(lamports, to)),
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),
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(
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Condition::Signature(from),
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Box::new(BudgetExpr::new_payment(lamports, &from)),
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),
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)
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} else {
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BudgetExpr::After(
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Condition::Timestamp(dt, *dt_pubkey),
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Box::new(BudgetExpr::new_payment(lamports, to)),
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)
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};
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Self::new_account(from, contract, lamports, expr)
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}
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/// Create a multisig payment script.
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pub fn pay_on_signature(
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from: &Pubkey,
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to: &Pubkey,
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contract: &Pubkey,
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witness: &Pubkey,
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cancelable: Option<Pubkey>,
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lamports: u64,
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) -> Script {
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let expr = if let Some(from) = cancelable {
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BudgetExpr::Or(
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(
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Condition::Signature(*witness),
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Box::new(BudgetExpr::new_payment(lamports, to)),
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),
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(
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Condition::Signature(from),
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Box::new(BudgetExpr::new_payment(lamports, &from)),
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),
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)
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} else {
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BudgetExpr::After(
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Condition::Signature(*witness),
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Box::new(BudgetExpr::new_payment(lamports, to)),
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)
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};
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Self::new_account(from, contract, lamports, expr)
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}
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}
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