29 lines
1.2 KiB
Rust
29 lines
1.2 KiB
Rust
use crate::state::*;
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use anchor_lang::prelude::*;
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// Remaining accounts should all the token mints that have registered
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// exchange rates.
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#[derive(Accounts)]
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pub struct UpdateMaxVoteWeight<'info> {
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pub registrar: AccountLoader<'info, Registrar>,
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// TODO: SPL governance has not yet implemented this.
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/// CHECK: TODO. Will be implemented when max_vote_weight_record is rolled out.
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pub max_vote_weight_record: UncheckedAccount<'info>,
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}
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/// Calculates the max vote weight for the registry. This is a function
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/// of the total supply of all exchange rate mints, converted into a
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/// common currency with a common number of decimals.
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///
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/// Note that this method is only safe to use if the cumulative supply for
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/// all tokens fits into a u64 *after* converting into common decimals, as
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/// defined by the registrar's `rate_decimal` field.
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pub fn update_max_vote_weight(ctx: Context<UpdateMaxVoteWeight>) -> Result<()> {
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let registrar = &ctx.accounts.registrar.load()?;
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let _max_vote_weight = registrar.max_vote_weight(ctx.remaining_accounts)?;
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// TODO: SPL governance has not yet implemented this feature.
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// When it has, probably need to write the result into an account,
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// similar to VoterWeightRecord.
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Ok(())
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}
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