#ifndef OPENUF_CONFIG_H
#define OPENUF_CONFIG_H

/* ─── Build-time defaults (override with /etc/openuf/openuf.conf) ─── */
#define OPENUF_VERSION          "0.4.0-r1"
#define OPENUF_STATE_FILE       "/etc/openuf/state.json"
#define OPENUF_CONF_FILE        "/etc/openuf/openuf.conf"

#ifndef ENABLE_LOGGING
#define ENABLE_LOGGING          1
#endif
#define DEFAULT_CONTROLLER_IP   ""
#define DEFAULT_LAN_IF          "br-lan"
#define DEFAULT_UFMODEL         "uapg2-ac-lr"
#define DEFAULT_INFORM_INTERVAL 10
#define ANNOUNCE_INTERVAL       10
#define ANNOUNCE_PORT           10001
#define INFORM_PORT             8080
#define INFORM_PATH             "/inform"
#define DEFAULT_AUTH_KEY        "ba86f2bbe107c7c57eb5f2690775c712"

#if ENABLE_LOGGING
#include <stdio.h>
#include <stdarg.h>
#include <time.h>
extern FILE *log_fp;

static inline void openuf_log_emit(FILE *stream, const char *prefix,
                                   const char *fmt, ...)
{
    char ts[32];
    time_t now = time(NULL);
    struct tm tm;
    localtime_r(&now, &tm);
    strftime(ts, sizeof(ts), "%Y-%m-%d %H:%M:%S", &tm);

    fprintf(stream, "[%s]", ts);
    if (prefix && prefix[0])
        fprintf(stream, " [%s]", prefix);
    fputc(' ', stream);

    va_list ap;
    va_start(ap, fmt);
    vfprintf(stream, fmt, ap);
    va_end(ap);
    fputc('\n', stream);
    fflush(stream);
}

#define LOG(fmt, ...) do { if (log_fp) openuf_log_emit(log_fp, __func__, fmt, ##__VA_ARGS__); } while(0)
#define LOGF(stream, fmt, ...) openuf_log_emit(stream, "openuf", fmt, ##__VA_ARGS__)
#else
#define LOG(fmt, ...) do {} while(0)
#define LOGF(stream, fmt, ...) do { (void)(stream); } while(0)
#endif

typedef struct {
    char controller_ip[64];
    char lan_if[32];
    char ufmodel[32];          /* "u6-inwall" | "u6-lite" */
    int  inform_interval;
    int  enable_announce;
    int  enable_inform;
    int  enable_logging;
    int  protocol_debug_level;
} openuf_config_t;

/* Parse /etc/openuf/openuf.conf (simple key=value).
 * Fills *cfg with defaults first, then overrides from file.
 * An empty controller_ip selects default-gateway autodetection. */
void config_load(openuf_config_t *cfg);

#endif /* OPENUF_CONFIG_H */