openswmm_gages.h

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// SPDX-License-Identifier: Apache-2.0
//
// Copyright 2026 Caleb Buahin
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

 
#ifndef OPENSWMM_GAGES_H
#define OPENSWMM_GAGES_H
 
#include "openswmm_engine.h"
 
#ifdef __cplusplus
extern "C" {
#endif

typedef enum SWMM_GageDataSource {
    SWMM_GAGE_TIMESERIES = 0, 
    SWMM_GAGE_FILE       = 1  
} SWMM_GageDataSource;

typedef enum SWMM_GageRainType {
    SWMM_RAIN_INTENSITY  = 0, 
    SWMM_RAIN_VOLUME     = 1, 
    SWMM_RAIN_CUMULATIVE = 2  
} SWMM_GageRainType;
 
/* =========================================================================
 * Identity
 * ========================================================================= */

SWMM_ENGINE_API int swmm_gage_count(SWMM_Engine engine);

SWMM_ENGINE_API int swmm_gage_index(SWMM_Engine engine, const char* id);

SWMM_ENGINE_API const char* swmm_gage_id(SWMM_Engine engine, int idx);
 
/* =========================================================================
 * Creation (BUILDING or OPENED — "editable" states)
 * ========================================================================= */

SWMM_ENGINE_API int swmm_gage_add(SWMM_Engine engine, const char* id);
 
/* =========================================================================
 * Property setters (BUILDING or OPENED)
 * ========================================================================= */

SWMM_ENGINE_API int swmm_gage_set_rain_type(SWMM_Engine engine, int idx, int type);

SWMM_ENGINE_API int swmm_gage_set_rain_interval(SWMM_Engine engine, int idx, double seconds);

SWMM_ENGINE_API int swmm_gage_set_data_source(SWMM_Engine engine, int idx, int source);

SWMM_ENGINE_API int swmm_gage_set_timeseries(SWMM_Engine engine, int idx, const char* ts_id);

SWMM_ENGINE_API int swmm_gage_set_filename(SWMM_Engine engine, int idx, const char* path,
                                                   const char* station_id);

SWMM_ENGINE_API int swmm_gage_set_station_id(SWMM_Engine engine, int idx, const char* station_id);

SWMM_ENGINE_API int swmm_gage_set_file_column(SWMM_Engine engine, int idx, const char* column);

SWMM_ENGINE_API int swmm_gage_set_file_format(SWMM_Engine engine, int idx, int format);

SWMM_ENGINE_API int swmm_gage_set_snow_factor(SWMM_Engine engine, int idx, double factor);

SWMM_ENGINE_API int swmm_gage_set_rain_units(SWMM_Engine engine, int idx, int units);

SWMM_ENGINE_API int swmm_gage_set_scale_factor(SWMM_Engine engine, int idx, double factor);
 
/* =========================================================================
 * Property getters
 * ========================================================================= */

SWMM_ENGINE_API int swmm_gage_get_rain_type(SWMM_Engine engine, int idx, int* type);

SWMM_ENGINE_API int swmm_gage_get_data_source(SWMM_Engine engine, int idx, int* source);

SWMM_ENGINE_API int swmm_gage_get_scale_factor(SWMM_Engine engine, int idx, double* factor);

SWMM_ENGINE_API int swmm_gage_get_rain_interval(SWMM_Engine engine, int idx, double* seconds);

SWMM_ENGINE_API int swmm_gage_get_snow_factor(SWMM_Engine engine, int idx, double* factor);

SWMM_ENGINE_API int swmm_gage_get_timeseries(SWMM_Engine engine, int idx, char* buf, int buflen);

SWMM_ENGINE_API int swmm_gage_get_station_id(SWMM_Engine engine, int idx, char* buf, int buflen);

SWMM_ENGINE_API int swmm_gage_get_file_column(SWMM_Engine engine, int idx, char* buf, int buflen);

SWMM_ENGINE_API int swmm_gage_get_file_format(SWMM_Engine engine, int idx, int* format);

SWMM_ENGINE_API int swmm_gage_get_rain_units(SWMM_Engine engine, int idx, int* units);
 
/* =========================================================================
 * State
 * ========================================================================= */

SWMM_ENGINE_API int swmm_gage_get_rainfall(SWMM_Engine engine, int idx, double* rainfall);

SWMM_ENGINE_API int swmm_gage_set_rainfall(SWMM_Engine engine, int idx, double rainfall);
 
/* =========================================================================
 * Bulk access
 * ========================================================================= */

SWMM_ENGINE_API int swmm_gage_get_rainfall_bulk(SWMM_Engine engine, double* buf, int count);

SWMM_ENGINE_API int swmm_gage_rename(SWMM_Engine engine, int idx, const char* newId);
 
/* =========================================================================
 * Resolved rainfall series
 * ========================================================================= */

SWMM_ENGINE_API int swmm_gage_get_rainfall_series_count(SWMM_Engine engine, int idx,
                                                        int* count);

SWMM_ENGINE_API int swmm_gage_get_rainfall_series(SWMM_Engine engine, int idx,
                                                  double* times, double* values,
                                                  int count);

SWMM_ENGINE_API int swmm_gage_reload_rain_files(SWMM_Engine engine);
 
#ifdef __cplusplus
} /* extern "C" */
#endif
 
#endif /* OPENSWMM_GAGES_H */