#ifndef BUILD_ROUTING_MODULE_UTILS_H
#define BUILD_ROUTING_MODULE_UTILS_H

/********************************************************************
 * Include header files that are required by function declaration
 *******************************************************************/

#include <vector>
#include <tuple>
#include "rr_gsb.h"
#include "module_manager.h"
#include "vpr_types.h"
#include "device_grid.h"
#include "vpr_device_annotation.h"

/********************************************************************
 * Function declaration
 *******************************************************************/

/* begin namespace openfpga */
namespace openfpga {

typedef std::pair<ModulePortId, size_t> ModulePinInfo;

std::string generate_sb_module_grid_port_name(const e_side& sb_side,
                                              const e_side& grid_side, 
                                              const DeviceGrid& vpr_device_grid,
                                              const VprDeviceAnnotation& vpr_device_annotation,
                                              const RRGraph& rr_graph,
                                              const RRNodeId& rr_node);

std::string generate_cb_module_grid_port_name(const e_side& cb_side, 
                                              const DeviceGrid& vpr_device_grid,
                                              const VprDeviceAnnotation& vpr_device_annotation,
                                              const RRGraph& rr_graph,
                                              const RRNodeId& rr_node);

ModulePinInfo find_switch_block_module_chan_port(const ModuleManager& module_manager, 
                                                 const ModuleId& sb_module,
                                                 const RRGraph& rr_graph,
                                                 const RRGSB& rr_gsb, 
                                                 const e_side& chan_side,
                                                 const RRNodeId& cur_rr_node,
                                                 const PORTS& cur_rr_node_direction);

ModulePinInfo find_switch_block_module_input_port(const ModuleManager& module_manager,
                                                  const ModuleId& sb_module, 
                                                  const DeviceGrid& grids,
                                                  const VprDeviceAnnotation& vpr_device_annotation,
                                                  const RRGraph& rr_graph,
                                                  const RRGSB& rr_gsb, 
                                                  const e_side& input_side,
                                                  const RRNodeId& input_rr_node);

std::vector<ModulePinInfo> find_switch_block_module_input_ports(const ModuleManager& module_manager,
                                                                const ModuleId& sb_module, 
                                                                const DeviceGrid& grids,
                                                                const VprDeviceAnnotation& vpr_device_annotation,
                                                                const RRGraph& rr_graph,
                                                                const RRGSB& rr_gsb, 
                                                                const std::vector<RRNodeId>& input_rr_nodes);

ModulePinInfo find_connection_block_module_chan_port(const ModuleManager& module_manager, 
                                                     const ModuleId& cb_module,
                                                     const RRGraph& rr_graph,
                                                     const RRGSB& rr_gsb, 
                                                     const t_rr_type& cb_type,
                                                     const RRNodeId& chan_rr_node);

ModulePortId find_connection_block_module_ipin_port(const ModuleManager& module_manager,
                                                    const ModuleId& cb_module, 
                                                    const DeviceGrid& grids,
                                                    const VprDeviceAnnotation& vpr_device_annotation,
                                                    const RRGraph& rr_graph,
                                                    const RRGSB& rr_gsb, 
                                                    const RRNodeId& src_rr_node);

std::vector<ModulePinInfo> find_connection_block_module_input_ports(const ModuleManager& module_manager,
                                                                    const ModuleId& cb_module,
                                                                    const RRGraph& rr_graph,
                                                                    const RRGSB& rr_gsb, 
                                                                    const t_rr_type& cb_type,
                                                                    const std::vector<RRNodeId>& input_rr_nodes);

} /* end namespace openfpga */

#endif