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[package] | ||
name = "dn404" | ||
version = "0.0.0" | ||
authors = ["you"] | ||
edition = "2021" | ||
publish = false | ||
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[lib] | ||
path = "src/lib.rs" | ||
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[dependencies.multiversx-sc] | ||
version = "=0.47.2" | ||
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[dependencies.multiversx-sc-modules] | ||
version = "=0.47.2" | ||
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[dev-dependencies] | ||
num-bigint = "0.4.2" | ||
num-traits = "0.2" | ||
hex = "0.4" | ||
hex-literal = "0.4.1" | ||
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[dev-dependencies.multiversx-sc-scenario] | ||
version = "=0.47.2" |
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[package] | ||
name = "dn404-meta" | ||
version = "0.0.0" | ||
edition = "2021" | ||
publish = false | ||
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[dependencies.dn404] | ||
path = ".." | ||
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[dependencies.multiversx-sc-meta] | ||
version = "=0.47.2" | ||
default-features = false |
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fn main() { | ||
multiversx_sc_meta::cli_main::<dn404::AbiProvider>(); | ||
} |
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{ | ||
"language": "rust" | ||
} |
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use crate::{fee::FeeType, Nonce, MAX_PERCENTAGE, NFT_AMOUNT}; | ||
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multiversx_sc::imports!(); | ||
multiversx_sc::derive_imports!(); | ||
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#[derive(TypeAbi, TopEncode, TopDecode, NestedEncode, NestedDecode)] | ||
pub struct TokenIdNoncePair<M: ManagedTypeApi> { | ||
pub token_id: TokenIdentifier<M>, | ||
pub nonce: Nonce, | ||
} | ||
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#[multiversx_sc::module] | ||
pub trait AvailableTokensModule: | ||
crate::price::PriceModule | ||
+ crate::fee::FeeModule | ||
+ multiversx_sc_modules::default_issue_callbacks::DefaultIssueCallbacksModule | ||
+ multiversx_sc_modules::pause::PauseModule | ||
+ multiversx_sc_modules::only_admin::OnlyAdminModule | ||
{ | ||
#[only_admin] | ||
#[payable("*")] | ||
#[endpoint] | ||
fn deposit(&self) { | ||
let payments = self.call_value().all_esdt_transfers().clone_value(); | ||
let mut basket = self.basket_of_goods(); | ||
for payment in &payments { | ||
self.add_tokens(&mut basket, payment); | ||
} | ||
} | ||
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#[payable("*")] | ||
#[endpoint(depositBasketOfGoods)] | ||
fn deposit_basket_of_goods(&self) { | ||
self.require_not_paused(); | ||
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let payments = self.call_value().all_esdt_transfers().clone_value(); | ||
let token_mapper = self.fractal_token(); | ||
let token_id = token_mapper.get_token_id_ref(); | ||
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let mut basket = self.basket_of_goods(); | ||
let mut total_output_payment = BigUint::zero(); | ||
for payment in &payments { | ||
let price = self.try_get_price(&payment.token_identifier, payment.token_nonce); | ||
let mut price_as_payment = EsdtTokenPayment::new(token_id.clone(), 0, price); | ||
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let fee_for_token = self.get_fee(&payment.token_identifier, payment.token_nonce); | ||
let fee_amount = match fee_for_token { | ||
FeeType::FixedAmount(amt) => amt, | ||
FeeType::Percentage(percentage) => { | ||
&price_as_payment.amount * percentage / MAX_PERCENTAGE | ||
} | ||
}; | ||
require!(price_as_payment.amount >= fee_amount, "Invalid state"); | ||
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price_as_payment.amount -= fee_amount; | ||
total_output_payment += &price_as_payment.amount; | ||
self.add_tokens(&mut basket, payment); | ||
} | ||
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if total_output_payment > 0 { | ||
let caller = self.blockchain().get_caller(); | ||
let _ = token_mapper.mint_and_send(&caller, total_output_payment); | ||
} | ||
} | ||
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#[payable("*")] | ||
#[endpoint(claimBasketOfGoods)] | ||
fn claim_basket_of_goods( | ||
&self, | ||
tokens_to_claim: MultiValueEncoded<EsdtTokenPaymentMultiValue>, | ||
) { | ||
self.require_not_paused(); | ||
require!(!tokens_to_claim.is_empty(), "No tokens to claim"); | ||
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let token_mapper = self.fractal_token(); | ||
let (payment_token, payment_amount) = self.call_value().single_fungible_esdt(); | ||
token_mapper.require_same_token(&payment_token); | ||
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let mut total_cost = BigUint::zero(); | ||
let mut tokens_vec = ManagedVec::<Self::Api, _>::new(); | ||
let mut basket = self.basket_of_goods(); | ||
for token_to_claim in tokens_to_claim { | ||
let token_as_payment = token_to_claim.into_esdt_token_payment(); | ||
let price = self.try_get_price( | ||
&token_as_payment.token_identifier, | ||
token_as_payment.token_nonce, | ||
); | ||
total_cost += price; | ||
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self.remove_token( | ||
&mut basket, | ||
token_as_payment.token_identifier.clone(), | ||
token_as_payment.token_nonce, | ||
); | ||
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tokens_vec.push(token_as_payment); | ||
} | ||
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require!(payment_amount >= total_cost, "Not enough tokens"); | ||
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token_mapper.burn(&total_cost); | ||
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let caller = self.blockchain().get_caller(); | ||
let remaining_tokens = payment_amount - total_cost; | ||
let remaining_tokens_payment = EsdtTokenPayment::new(payment_token, 0, remaining_tokens); | ||
self.send() | ||
.direct_non_zero_esdt_payment(&caller, &remaining_tokens_payment); | ||
self.send().direct_multi(&caller, &tokens_vec); | ||
} | ||
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fn add_tokens( | ||
&self, | ||
mapper: &mut UnorderedSetMapper<TokenIdNoncePair<Self::Api>>, | ||
payment: EsdtTokenPayment, | ||
) { | ||
self.remaining_tokens(&payment.token_identifier, payment.token_nonce) | ||
.update(|amt| *amt += payment.amount); | ||
let _ = mapper.insert(TokenIdNoncePair { | ||
token_id: payment.token_identifier, | ||
nonce: payment.token_nonce, | ||
}); | ||
} | ||
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fn remove_token( | ||
&self, | ||
mapper: &mut UnorderedSetMapper<TokenIdNoncePair<Self::Api>>, | ||
token_id: TokenIdentifier, | ||
nonce: Nonce, | ||
) { | ||
let remove = self.remaining_tokens(&token_id, nonce).update(|amt| { | ||
require!(*amt >= NFT_AMOUNT, "Not enough tokens to claim"); | ||
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*amt -= NFT_AMOUNT; | ||
*amt == 0 | ||
}); | ||
if remove { | ||
let _ = mapper.swap_remove(&TokenIdNoncePair { token_id, nonce }); | ||
} | ||
} | ||
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#[view(getBasketOfGoods)] | ||
#[storage_mapper("basketOfGoods")] | ||
fn basket_of_goods(&self) -> UnorderedSetMapper<TokenIdNoncePair<Self::Api>>; | ||
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#[view(getRemainingTokens)] | ||
#[storage_mapper("remTok")] | ||
fn remaining_tokens( | ||
&self, | ||
token_id: &TokenIdentifier, | ||
nonce: Nonce, | ||
) -> SingleValueMapper<BigUint>; | ||
} |
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use crate::{Nonce, Percentage, MAX_PERCENTAGE}; | ||
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multiversx_sc::imports!(); | ||
multiversx_sc::derive_imports!(); | ||
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#[derive(TypeAbi, TopEncode, TopDecode, NestedEncode, NestedDecode)] | ||
pub enum FeeType<M: ManagedTypeApi> { | ||
FixedAmount(BigUint<M>), | ||
Percentage(Percentage), | ||
} | ||
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#[multiversx_sc::module] | ||
pub trait FeeModule { | ||
#[only_owner] | ||
#[endpoint(setFeeForFractionalisingNft)] | ||
fn set_fee_for_fractionalizing_nft( | ||
&self, | ||
token_id: TokenIdentifier, | ||
nonce: Nonce, | ||
fee: BigUint, | ||
) { | ||
self.fee_nft(&token_id, nonce).set(fee); | ||
} | ||
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#[only_owner] | ||
#[endpoint(setFeeForFactionalisingCollection)] | ||
fn set_fee_for_fractionalizing_collection(&self, token_id: TokenIdentifier, fee: BigUint) { | ||
self.fee_collection(&token_id).set(fee); | ||
} | ||
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#[only_owner] | ||
#[endpoint(setFeeForDepositBaskedOfGoods)] | ||
fn set_fee_for_deposit_basket_of_goods(&self, fee_percentage: Percentage) { | ||
require!(fee_percentage <= MAX_PERCENTAGE, "Invalid fee percentage"); | ||
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self.fee_basket().set(fee_percentage); | ||
} | ||
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#[view(getFee)] | ||
fn get_fee(&self, token_id: &TokenIdentifier, nonce: Nonce) -> FeeType<Self::Api> { | ||
let fee_for_token = self.fee_nft(token_id, nonce).get(); | ||
if fee_for_token > 0 { | ||
return FeeType::FixedAmount(fee_for_token); | ||
} | ||
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let fee_collection = self.fee_collection(token_id).get(); | ||
if fee_collection > 0 { | ||
return FeeType::FixedAmount(fee_collection); | ||
} | ||
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let fee_percentage = self.fee_basket().get(); | ||
FeeType::Percentage(fee_percentage) | ||
} | ||
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#[storage_mapper("feeNft")] | ||
fn fee_nft(&self, token_id: &TokenIdentifier, nonce: Nonce) -> SingleValueMapper<BigUint>; | ||
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#[storage_mapper("feeColl")] | ||
fn fee_collection(&self, token_id: &TokenIdentifier) -> SingleValueMapper<BigUint>; | ||
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#[view(getFeePercentageForBasketDeposit)] | ||
#[storage_mapper("feeBasket")] | ||
fn fee_basket(&self) -> SingleValueMapper<Percentage>; | ||
} |
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#![no_std] | ||
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multiversx_sc::imports!(); | ||
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pub mod available_tokens; | ||
pub mod fee; | ||
pub mod price; | ||
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pub type Nonce = u64; | ||
pub type Percentage = u32; | ||
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pub const MAX_PERCENTAGE: Percentage = 10_000; | ||
pub const NFT_AMOUNT: u32 = 1; | ||
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#[multiversx_sc::contract] | ||
pub trait Dn404: | ||
available_tokens::AvailableTokensModule | ||
+ price::PriceModule | ||
+ fee::FeeModule | ||
+ multiversx_sc_modules::default_issue_callbacks::DefaultIssueCallbacksModule | ||
+ multiversx_sc_modules::pause::PauseModule | ||
+ multiversx_sc_modules::only_admin::OnlyAdminModule | ||
{ | ||
/// Needs mint and burn roles for fractal_token | ||
#[init] | ||
fn init(&self, fractal_token_id: TokenIdentifier, admins: MultiValueEncoded<ManagedAddress>) { | ||
require!( | ||
fractal_token_id.is_valid_esdt_identifier(), | ||
"Invalid token ID" | ||
); | ||
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self.fractal_token().set_token_id(fractal_token_id); | ||
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let caller = self.blockchain().get_caller(); | ||
let _ = self.admins().insert(caller); | ||
self.admins().extend(admins); | ||
self.set_paused(true); | ||
} | ||
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#[endpoint] | ||
fn upgrade(&self) {} | ||
} |
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use crate::Nonce; | ||
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multiversx_sc::imports!(); | ||
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#[multiversx_sc::module] | ||
pub trait PriceModule { | ||
#[only_owner] | ||
#[endpoint(setInternalPriceForToken)] | ||
fn set_internal_price_for_token( | ||
&self, | ||
token_id: TokenIdentifier, | ||
nonce: Nonce, | ||
price: BigUint, | ||
) { | ||
self.price_for_token(&token_id, nonce).set(price); | ||
} | ||
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#[only_owner] | ||
#[endpoint(setInternalPriceForCollection)] | ||
fn set_internal_price_for_collection(&self, token_id: TokenIdentifier, price: BigUint) { | ||
self.price_for_collection(&token_id).set(price); | ||
} | ||
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#[view(getPriceForToken)] | ||
fn try_get_price(&self, token_id: &TokenIdentifier, nonce: Nonce) -> BigUint { | ||
let price_for_token = self.price_for_token(token_id, nonce).get(); | ||
if price_for_token > 0 { | ||
return price_for_token; | ||
} | ||
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let price_for_collection = self.price_for_collection(token_id).get(); | ||
require!(price_for_collection > 0, "No price set for token"); | ||
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price_for_collection | ||
} | ||
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#[view(getFractalTokenId)] | ||
#[storage_mapper("fractalToken")] | ||
fn fractal_token(&self) -> FungibleTokenMapper; | ||
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#[storage_mapper("priceColl")] | ||
fn price_for_collection(&self, token_id: &TokenIdentifier) -> SingleValueMapper<BigUint>; | ||
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#[storage_mapper("priceTok")] | ||
fn price_for_token( | ||
&self, | ||
token_id: &TokenIdentifier, | ||
nonce: Nonce, | ||
) -> SingleValueMapper<BigUint>; | ||
} |
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