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#ifndef CASHU_H
#define CASHU_H
#include "esp_err.h"
#include <stdint.h>
#include <stdbool.h>
#define CASHU_MAX_PROOFS 10
#define CASHU_MAX_SECRET_LEN 128
#define CASHU_MAX_ID_LEN 16
#define CASHU_MAX_C_LEN 128
typedef struct {
uint64_t amount;
char id[CASHU_MAX_ID_LEN];
char secret[CASHU_MAX_SECRET_LEN];
char c[CASHU_MAX_C_LEN];
} cashu_proof_t;
typedef struct {
cashu_proof_t proofs[CASHU_MAX_PROOFS];
int proof_count;
char mint_url[256];
uint64_t total_amount;
} cashu_token_t;
typedef struct {
char y_hex[65];
bool spent;
} cashu_proof_state_t;
esp_err_t cashu_decode_token(const char *token_str, cashu_token_t *out);
esp_err_t cashu_check_proof_states(const char *mint_url, const cashu_token_t *token,
cashu_proof_state_t *states, int *state_count);
uint64_t cashu_calculate_allotment_ms(uint64_t token_amount, uint64_t price_per_step,
uint64_t step_size_ms);
bool cashu_is_mint_accepted(const char *mint_url);
#endif
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