sss_token/instructions/
update_minter.rs

1use anchor_lang::prelude::*;
2
3use crate::errors::SssError;
4use crate::events::MinterUpdated;
5use crate::state::*;
6use crate::utils::require_master_authority;
7
8#[derive(AnchorSerialize, AnchorDeserialize)]
9pub struct UpdateMinterParams {
10    pub is_active: bool,
11    pub mint_quota: u64,
12}
13
14#[derive(Accounts)]
15pub struct UpdateMinter<'info> {
16    #[account(mut)]
17    pub authority: Signer<'info>,
18
19    #[account(
20        mut,
21        seeds = [StablecoinConfig::SEED_PREFIX, config.mint.as_ref()],
22        bump = config.bump,
23    )]
24    pub config: Account<'info, StablecoinConfig>,
25
26    #[account(
27        seeds = [RoleRegistry::SEED_PREFIX, config.key().as_ref()],
28        bump = role_registry.bump,
29        constraint = role_registry.config == config.key() @ SssError::InvalidAuthority,
30    )]
31    pub role_registry: Account<'info, RoleRegistry>,
32
33    #[account(
34        init_if_needed,
35        payer = authority,
36        space = MinterInfo::SPACE,
37        seeds = [MinterInfo::SEED_PREFIX, config.key().as_ref(), minter_wallet.key().as_ref()],
38        bump,
39        constraint = minter_info.config == config.key() || minter_info.config == Pubkey::default() @ SssError::InvalidAuthority,
40    )]
41    pub minter_info: Account<'info, MinterInfo>,
42
43    /// CHECK: Wallet address of the minter. Only used as PDA seed — not validated
44    /// beyond zero-address check. Minter is activated separately via is_active flag.
45    pub minter_wallet: UncheckedAccount<'info>,
46
47    pub system_program: Program<'info, System>,
48}
49
50pub fn handler(ctx: Context<UpdateMinter>, params: UpdateMinterParams) -> Result<()> {
51    require_master_authority(&ctx.accounts.role_registry, &ctx.accounts.authority.key())?;
52
53    require!(
54        ctx.accounts.minter_wallet.key() != Pubkey::default(),
55        SssError::ZeroAuthority
56    );
57
58    let clock = Clock::get()?;
59    let minter_info = &mut ctx.accounts.minter_info;
60
61    // If newly created, set initial fields
62    if minter_info.config == Pubkey::default() {
63        minter_info.bump = ctx.bumps.minter_info;
64        minter_info.config = ctx.accounts.config.key();
65        minter_info.minter = ctx.accounts.minter_wallet.key();
66        minter_info.total_minted = 0;
67        minter_info.created_at = clock.unix_timestamp;
68        minter_info.last_mint_at = 0;
69    }
70
71    minter_info.is_active = params.is_active;
72    minter_info.mint_quota = params.mint_quota;
73
74    ctx.accounts.config.updated_at = clock.unix_timestamp;
75
76    emit!(MinterUpdated {
77        config: ctx.accounts.config.key(),
78        minter: ctx.accounts.minter_wallet.key(),
79        is_active: params.is_active,
80        mint_quota: params.mint_quota,
81        updated_by: ctx.accounts.authority.key(),
82        timestamp: clock.unix_timestamp,
83    });
84
85    Ok(())
86}
sss_token/instructions/update_minter.rs

sss_token/instructions/
update_minter.rs
