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#![deny(missing_docs)]
#![cfg_attr(not(test), forbid(unsafe_code))]

//! An ERC20-like Token program for the Solana blockchain

pub mod error;
pub mod extension;
pub mod instruction;
pub mod native_mint;
pub mod pod;
pub mod processor;
pub mod state;

#[cfg(not(feature = "no-entrypoint"))]
mod entrypoint;

// Export current sdk types for downstream users building with a different sdk version
pub use solana_program;
use solana_program::{
    entrypoint::ProgramResult,
    program_error::ProgramError,
    program_memory::sol_memcmp,
    pubkey::{Pubkey, PUBKEY_BYTES},
};

/// Convert the UI representation of a token amount (using the decimals field defined in its mint)
/// to the raw amount
pub fn ui_amount_to_amount(ui_amount: f64, decimals: u8) -> u64 {
    (ui_amount * 10_usize.pow(decimals as u32) as f64) as u64
}

/// Convert a raw amount to its UI representation (using the decimals field defined in its mint)
pub fn amount_to_ui_amount(amount: u64, decimals: u8) -> f64 {
    amount as f64 / 10_usize.pow(decimals as u32) as f64
}

solana_program::declare_id!("TokenzQdBNbLqP5VEhdkAS6EPFLC1PHnBqCXEpPxuEb");

/// Checks that the supplied program ID is the correct one for SPL-token
pub fn check_program_account(spl_token_program_id: &Pubkey) -> ProgramResult {
    if spl_token_program_id != &id() {
        return Err(ProgramError::IncorrectProgramId);
    }
    Ok(())
}

/// Checks two pubkeys for equality in a computationally cheap way using
/// `sol_memcmp`
pub fn cmp_pubkeys(a: &Pubkey, b: &Pubkey) -> bool {
    sol_memcmp(a.as_ref(), b.as_ref(), PUBKEY_BYTES) == 0
}