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

namespace cashu_sdk {};

// Cashu

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


interface Bolt11Invoice {
    [Throws=CashuError]
    constructor(string bolt11);
	string as_string();
	Amount? amount();
};

interface Amount {
	u64 to_sat();	
	u64 to_msat();
	[Name = from_sat]
	constructor(u64 sat);
	[Name = from_msat]
	constructor(u64 msat);
 	sequence<Amount> split();
};


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

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

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(Amount amount, PublicKey b);
	Amount amount();
	PublicKey b();	
};

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

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

interface MintProof {
	constructor(Amount? amount, Secret secret, PublicKey? c, Id? id);
	Amount? amount();
	Secret secret();
	PublicKey? c();
	Id? 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);
	sequence<MintProofs> token();
	string? memo();
    [Throws=CashuError]
	string as_string();
    [Throws=CashuError, Name=from_string]
	constructor(string token);
	
};

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

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, Keys keys);
	Id id();
	Keys keys();
};


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

interface KeySetResponse {
	constructor(sequence<Id> keyset_ids);
	sequence<Id> keyset_ids();
};

interface RequestMintResponse {
    [Throws=CashuError]
	constructor(string invoice, string hash);
	string invoice();
	string hash();
};

interface MintRequest {
	constructor(sequence<BlindedMessage> outputs);
	sequence<BlindedMessage> outputs();
	Amount total_amount();
};

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

interface CheckFeesRequest {
    [Throws=CashuError]
	constructor(string invoice);
	string invoice();
};

interface CheckFeesResponse {
	constructor(Amount amount);
	Amount amount();
};

interface Nut05MeltRequest {
    [Throws=CashuError]
	constructor(sequence<Proof> proofs, string Invoice);
	sequence<Proof> proofs();
	string invoice();
};

interface Nut05MeltResponse {
	constructor(boolean paid, string? preimage);
	boolean paid();
	string? preimage();
};

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

interface SplitResponse {
	constructor(sequence<BlindedSignature> promises);
	sequence<BlindedSignature> promises();
	Amount? promises_amount();

};

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 MeltRequest {
    [Throws=CashuError]
	constructor(sequence<Proof> proofs, string Invoice, sequence<BlindedMessage>? outputs);
	sequence<Proof> proofs();
	string invoice();
	sequence<BlindedMessage>? outputs();
};

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

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

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

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

interface ProofsStatus {
	constructor(sequence<MintProof> spendable, sequence<MintProof> spent);
	sequence<MintProof> spendable();
	sequence<MintProof> spent();
};

// Cashu Sdk


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

interface SendProofs {
	constructor(sequence<Proof> change_proofs, sequence<Proof> send_proofs);
	sequence<Proof> send_proofs();
	sequence<Proof> change_proofs();
};

interface Melted {
	constructor(boolean paid, string? preimage, sequence<Proof>? change);
	string? preimage();
	boolean paid();
	sequence<Proof>? change();
};

interface Client {
    [Throws=CashuSdkError]
	constructor(string mint_url);
	[Throws=CashuSdkError]
	Keys get_keys();
    [Throws=CashuSdkError]
	KeySetResponse get_keysets();
    [Throws=CashuSdkError]
    RequestMintResponse request_mint(Amount amount);
    [Throws=CashuSdkError]
	PostMintResponse mint(BlindedMessages blinded_messages, string hash);
    [Throws=CashuSdkError]
    CheckFeesResponse check_fees(Bolt11Invoice invoice);
    [Throws=CashuSdkError]
	MeltResponse melt(sequence<Proof> proofs, Bolt11Invoice invoice, sequence<BlindedMessage>? outputs);
    [Throws=CashuSdkError]
    SplitResponse split(SplitRequest split_request);
    [Throws=CashuSdkError]
	CheckSpendableResponse check_spendable(sequence<MintProof> proofs);
    [Throws=CashuSdkError]
    MintInfo get_info();
};

interface Wallet {
	constructor(Client client, Keys mint_keys);
	// [Throws=CashuSdkError]
	// ProofsStatus check_proofs_spent(sequence<MintProof> proofs);
    [Throws=CashuSdkError]
	RequestMintResponse request_mint(Amount amount);
    [Throws=CashuSdkError]
	Token mint_token(Amount amount, string hash);
    [Throws=CashuSdkError]
	sequence<Proof> mint(Amount amount, string hash);
    [Throws=CashuSdkError]
	Amount check_fee(Bolt11Invoice invoice);
    [Throws=CashuSdkError]
	sequence<Proof> receive(string encoded_token);
    [Throws=CashuSdkError]
	sequence<Proof> process_split_response(BlindedMessages blinded_messages, sequence<BlindedSignature> promises);
    [Throws=CashuSdkError]
	SendProofs send(Amount amount, sequence<Proof> proofs);
    [Throws=CashuSdkError]
	Melted melt(Bolt11Invoice invoice, sequence<Proof> proofs, Amount fee_reserve);
    [Throws=CashuSdkError]
	string proof_to_token(sequence<Proof> proof, string? memo);
};


interface Mint {
    [Throws=CashuSdkError]
	constructor(string secret, string derivation_path, record<string, MintKeySet> inactive_keysets, sequence<Secret> spent_secrets, u8 max_order, Amount min_fee_reserve, f32 percent_fee_reserve);
	KeySet active_keyset_pubkeys();
	KeySetResponse keysets();
	MintKeySet active_keyset();
	KeySet? keyset(Id id);
    [Throws=CashuSdkError]
	PostMintResponse process_mint_request(MintRequest mint_request);
    [Throws=CashuSdkError]
	SplitResponse process_split_request(SplitRequest split_request);
    [Throws=CashuSdkError]
	void verify_proof(Proof proof);
    [Throws=CashuSdkError]
	void verify_melt_request(MeltRequest melt_request);
    [Throws=CashuSdkError]
	MeltResponse process_melt_request(MeltRequest melt_request, string preimage, Amount totoal_spent);
};