Function cbm_ui_config_load

src/ui/config.c:33–92

/* ── Load ────────────────────────────────────────────────────── */

void cbm_ui_config_load(cbm_ui_config_t *cfg) {
    cfg->ui_enabled = CBM_UI_DEFAULT_ENABLED;
    cfg->ui_port = CBM_UI_DEFAULT_PORT;

    char path[CBM_SZ_1K];
    cbm_ui_config_path(path, (int)sizeof(path));

    FILE *f = fopen(path, "rb");
    if (!f) {
        /* No config file — auto-enable UI if binary has embedded assets */
        if (CBM_EMBEDDED_FILE_COUNT > 0) {
            cfg->ui_enabled = true;
        }
        return;
    }

    fseek(f, 0, SEEK_END);
    long len = ftell(f);
    fseek(f, 0, SEEK_SET);

    if (len <= 0 || len > 4096) {
        fclose(f);
        return; /* empty or suspiciously large → defaults */
    }

    char *buf = malloc((size_t)len + SKIP_ONE);
    if (!buf) {
        fclose(f);
        return;
    }

    size_t nread = fread(buf, SKIP_ONE, (size_t)len, f);
    fclose(f);
    buf[nread] = '\0';

    yyjson_doc *doc = yyjson_read(buf, nread, 0);
    free(buf);
    if (!doc) {
        cbm_log_warn("ui.config.corrupt", "path", path);
        return; /* corrupt JSON → defaults */
    }

    yyjson_val *root = yyjson_doc_get_root(doc);
    if (!yyjson_is_obj(root)) {
        yyjson_doc_free(doc);
        return;
    }

    yyjson_val *v_enabled = yyjson_obj_get(root, "ui_enabled");
    if (yyjson_is_bool(v_enabled)) {
        cfg->ui_enabled = yyjson_get_bool(v_enabled);
    }

    yyjson_val *v_port = yyjson_obj_get(root, "ui_port");
    if (yyjson_is_int(v_port)) {
        cfg->ui_port = (int)yyjson_get_int(v_port);
    }