1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103

use anchor_lang::prelude::*;

use crate::errors::*;
use crate::state::*;

#[derive(AnchorSerialize, AnchorDeserialize)]
pub struct ConfigTransactionCreateArgs {
    pub actions: Vec<ConfigAction>,
    pub memo: Option<String>,
}

#[derive(Accounts)]
#[instruction(args: ConfigTransactionCreateArgs)]
pub struct ConfigTransactionCreate<'info> {
    #[account(
        mut,
        seeds = [SEED_PREFIX, SEED_MULTISIG, multisig.create_key.as_ref()],
        bump = multisig.bump,
    )]
    pub multisig: Account<'info, Multisig>,

    #[account(
        init,
        payer = rent_payer,
        space = ConfigTransaction::size(&args.actions),
        seeds = [
            SEED_PREFIX,
            multisig.key().as_ref(),
            SEED_TRANSACTION,
            &multisig.transaction_index.checked_add(1).unwrap().to_le_bytes(),
        ],
        bump
    )]
    pub transaction: Account<'info, ConfigTransaction>,

    /// The member of the multisig that is creating the transaction.
    pub creator: Signer<'info>,

    /// The payer for the transaction account rent.
    #[account(mut)]
    pub rent_payer: Signer<'info>,

    pub system_program: Program<'info, System>,
}

impl ConfigTransactionCreate<'_> {
    fn validate(&self) -> Result<()> {
        // multisig
        require_keys_eq!(
            self.multisig.config_authority,
            Pubkey::default(),
            MultisigError::NotSupportedForControlled
        );

        // creator
        require!(
            self.multisig.is_member(self.creator.key()).is_some(),
            MultisigError::NotAMember
        );
        require!(
            self.multisig
                .member_has_permission(self.creator.key(), Permission::Initiate),
            MultisigError::Unauthorized
        );

        Ok(())
    }

    /// Create a new config transaction.
    #[access_control(ctx.accounts.validate())]
    pub fn config_transaction_create(
        ctx: Context<Self>,
        args: ConfigTransactionCreateArgs,
    ) -> Result<()> {
        require!(!args.actions.is_empty(), MultisigError::NoActions);

        let multisig = &mut ctx.accounts.multisig;
        let transaction = &mut ctx.accounts.transaction;
        let creator = &mut ctx.accounts.creator;

        let multisig_key = multisig.key();

        // Increment the transaction index.
        let transaction_index = multisig.transaction_index.checked_add(1).unwrap();

        // Initialize the transaction fields.
        transaction.multisig = multisig_key;
        transaction.creator = creator.key();
        transaction.index = transaction_index;
        transaction.bump = *ctx.bumps.get("transaction").unwrap();
        transaction.actions = args.actions;

        // Updated last transaction index in the multisig account.
        multisig.transaction_index = transaction_index;

        multisig.invariant()?;

        // Logs for indexing.
        msg!("transaction index: {}", transaction_index);

        Ok(())
    }
}