cdk/bindings/cashu-ffi/src/cashu.udl

namespace cashu {};

[Error]
interface CashuError {
    Generic(string err);
};

// Types

[Enum]
interface CurrencyUnit {
	Sat();
	Usd();
	Custom(string unit);
};
 
interface Bolt11Invoice {
    [Throws=CashuError]
    constructor(string bolt11);
	string as_string();
	Amount? amount();
};

interface Amount {
	constructor(u64 amount);
 	sequence<Amount> split();
};

interface Secret {
	constructor();
	sequence<u8> as_bytes();	
};

// NUT00


interface PublicKey {
    [Throws=CashuError, Name=from_hex]
    constructor(string hex);
    [Throws=CashuError]
    string to_hex();
};


interface SecretKey {
    [Throws=CashuError]
    string to_hex();
};

interface BlindedMessage {
	constructor(Id keyset_id, Amount amount, PublicKey b);
	Amount amount();
	Id keyset_id();
	PublicKey b();	
};

interface Proof {
	constructor(Amount amount, Secret secret, PublicKey c, Id id);
	Amount amount();
	Secret secret();
	PublicKey c();
	Id keyset_id();
};

interface BlindedSignature {
	constructor(Id keyset_id, Amount amount, PublicKey c);
	Id keyset_id();
	Amount amount();
	PublicKey c();
};

interface MintProof {
	constructor(Amount? amount, Secret secret, PublicKey? c, Id? id);
	Amount? amount();
	Secret secret();
	PublicKey? c();
	Id? keyset_id();
	
};

interface MintProofs {
    [Throws=CashuError]
	constructor(string mint, sequence<Proof> proofs);
	string url();
	sequence<Proof> proofs();
};

interface Token {
    [Throws=CashuError]
	constructor(string mint, sequence<Proof> token, string? memo, string? unit);
	sequence<MintProofs> token();
	string? memo();
	string? unit();
	string to_string();
    [Throws=CashuError, Name=from_string]
	constructor(string token);
	
};

interface PreMintSecrets {
    [Throws=CashuError, Name=random]
	constructor(Id keyset_id, Amount amount);
    [Throws=CashuError, Name=blank]
	constructor(Id keyset_id, Amount amount);
	sequence<BlindedMessage> blinded_messages();
	sequence<Secret> secrets();
	sequence<SecretKey> rs();
	sequence<Amount> amounts();
};


// NUT-02

interface Id {
    [Throws=CashuError]
	constructor(string id);
};

interface KeyPair {
	[Name=from_secret_key]
	constructor(SecretKey secret_key);
	SecretKey secret_key();
	PublicKey public_key();	
};

interface Keys {
	constructor(record<string, PublicKey> keys);
	record<string, PublicKey> keys();
	record<string, string> as_hashmap();
	PublicKey? amount_key(Amount amount);
};

interface KeySet {
	constructor(Id id, string unit, Keys keys);
	Id id();
	Keys keys();
};

interface MintKeySet {
	[Name=generate]
	constructor(string secret, string unit, string derivation_path, u8 max_order);
};

interface KeysResponse {
	constructor(Keys keys);
};

interface KeySetResponse {
	constructor(sequence<KeySetInfo> keysets);
	sequence<KeySetInfo> keysets();
};

// NUT-03

interface SwapRequest {
	constructor(sequence<Proof> proofs, sequence<BlindedMessage> outputs);
	sequence<Proof> proofs();
	sequence<BlindedMessage> outputs();
	Amount proofs_amount();
	Amount output_amount();
};

interface SwapResponse {
	constructor(sequence<BlindedSignature> promises);
	sequence<BlindedSignature> signatures();
};

// NUT-04

interface MintQuoteBolt11Request {
	constructor(Amount amount, string unit);
	Amount amount();
};

interface MintQuoteBolt11Response {
	constructor(string quote, string request, boolean paid, u64 expiry);
	string quote();
	string request();
	boolean paid();
	u64 expiry();
};


interface MintBolt11Request {
	constructor(string quote, sequence<BlindedMessage> outputs);
	string quote();
	sequence<BlindedMessage> outputs();
};

interface MintBolt11Response {
	constructor(sequence<BlindedSignature> signatures);
	sequence<BlindedSignature> signatures();
};

// NUT-05

interface MeltQuoteBolt11Response {
    [Throws=CashuError]
	constructor(string quote, u64 amount, u64 fee_reserve, boolean paid, u64 expiry);
	string quote();
	u64 amount();
	u64 fee_reserve();
	boolean paid();
	u64 expiry();
};

interface MeltQuoteBolt11Request {
    [Throws=CashuError]
	constructor(string request, string unit);
	string request();
};

interface MeltBolt11Request {
    [Throws=CashuError]
	constructor(string quote, sequence<Proof> inputs, sequence<BlindedMessage>? outputs);
	sequence<Proof> inputs();
	string quote();
};

interface MeltBolt11Response {
	constructor(boolean paid, string? payment_preimage, sequence<BlindedSignature>? change);
	string? payment_preimage();
	boolean paid();
};

// NUT-06

interface MintInfo {
	constructor(string? name, PublicKey? pubkey, MintVersion? version, string? description, string? description_long, sequence<sequence<string>>? contact, string nuts, string? motd);
	string? name();
	PublicKey? pubkey();
	MintVersion? version();
	string? description();
	string? description_long();
	sequence<sequence<string>>? contact();
	string? motd();
};

// NUT-07

interface CheckSpendableRequest {
	constructor(sequence<MintProof> proofs);
	sequence<MintProof> proofs();
};

interface CheckSpendableResponse {
	constructor(sequence<boolean> spendable, sequence<boolean> pending);
	sequence<boolean> spendable();
	sequence<boolean> pending();	
};

interface MintVersion {
	constructor(string name, string version);
	string name();
	string version();
};

interface KeySetInfo {
	constructor(Id id, string unit);
	
};

enum InvoiceStatus {
	"Unpaid",
	"Paid",
	"Expired",
	"InFlight"
};