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use super::ArwenBigUint;
use crate::ArwenApiImpl;
use elrond_wasm::api::CallValueApi;
use elrond_wasm::types::{BoxedBytes, EsdtTokenType, TokenIdentifier};
const MAX_POSSIBLE_TOKEN_IDENTIFIER_LENGTH: usize = 32;
extern "C" {
fn checkNoPayment();
fn bigIntNew(value: i64) -> i32;
fn bigIntGetCallValue(dest: i32);
fn bigIntGetESDTCallValue(dest: i32);
fn getESDTTokenName(resultOffset: *const u8) -> i32;
fn getESDTTokenNonce() -> u64;
fn getESDTTokenType() -> i32;
#[allow(dead_code)]
fn getCallValueTokenName(callValueOffset: *const u8, resultOffset: *const u8) -> i32;
}
impl CallValueApi for ArwenApiImpl {
type AmountType = ArwenBigUint;
#[inline]
fn check_not_payable(&self) {
unsafe {
checkNoPayment();
}
}
fn egld_value(&self) -> ArwenBigUint {
unsafe {
let result = bigIntNew(0);
bigIntGetCallValue(result);
ArwenBigUint { handle: result }
}
}
fn esdt_value(&self) -> ArwenBigUint {
unsafe {
let result = bigIntNew(0);
bigIntGetESDTCallValue(result);
ArwenBigUint { handle: result }
}
}
fn token(&self) -> TokenIdentifier {
unsafe {
let mut name_buffer = [0u8; MAX_POSSIBLE_TOKEN_IDENTIFIER_LENGTH];
let name_len = getESDTTokenName(name_buffer.as_mut_ptr());
if name_len == 0 {
TokenIdentifier::egld()
} else {
BoxedBytes::from(&name_buffer[..name_len as usize]).into()
}
}
}
fn esdt_token_nonce(&self) -> u64 {
unsafe { getESDTTokenNonce() }
}
fn esdt_token_type(&self) -> EsdtTokenType {
unsafe { (getESDTTokenType() as u8).into() }
}
}