#ifndef EOLIAN_H
#define EOLIAN_H

#ifdef __cplusplus
extern "C" {
#endif

#include <Eina.h>
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif


/* Function Id used to extract information on class functions
 *
 * @ingroup Eolian
 */
typedef struct _Function_Id* Eolian_Function;

/* Class function parameter information
 *
 * @ingroup Eolian
 */
typedef struct _Parameter_Desc* Eolian_Function_Parameter;

/* Class implement information
 *
 * @ingroup Eolian
 */
typedef struct _Implement_Desc* Eolian_Implement;

/* Class implement legacy information
 *
 * @ingroup Eolian
 */
typedef struct _Implement_Legacy_Desc* Eolian_Implement_Legacy;

/* Class implement legacy parameter information
 *
 * @ingroup Eolian
 */
typedef struct _Implement_Legacy_Param* Eolian_Implement_Legacy_Parameter;

/* Event information
 *
 * @ingroup Eolian
 */
typedef struct _Event_Desc* Eolian_Event;

#define EOLIAN_METHOD_RETURN_TYPE "method_return_type"
#define EOLIAN_PROP_GET_RETURN_TYPE "property_get_return_type"
#define EOLIAN_PROP_SET_RETURN_TYPE "property_set_return_type"
#define EOLIAN_RETURN_COMMENT "return_comment"
#define EOLIAN_LEGACY "legacy"
#define EOLIAN_LEGACY_GET "legacy_get"
#define EOLIAN_LEGACY_SET "legacy_set"
#define EOLIAN_COMMENT "comment"
#define EOLIAN_COMMENT_SET "comment_set"
#define EOLIAN_COMMENT_GET "comment_get"

typedef enum
{
   UNRESOLVED,
   PROPERTY_FUNC,
   // FIXME: bs
   SET,
   GET,
   METHOD_FUNC,
   CONSTRUCTOR,
   DFLT_CONSTRUCTOR,
   DESTRUCTOR,
   DFLT_DESTRUCTOR
} Eolian_Function_Type;

typedef enum
{
   EOLIAN_IN_PARAM,
   EOLIAN_OUT_PARAM,
   EOLIAN_INOUT_PARAM
} Eolian_Parameter_Dir;

typedef enum
{
   EOLIAN_CLASS_UNKNOWN_TYPE,
   EOLIAN_CLASS_REGULAR,
   EOLIAN_CLASS_REGULAR_NON_INSTANT,
   EOLIAN_CLASS_MIXIN,
   EOLIAN_CLASS_INTERFACE
} Eolian_Class_Type;

#ifdef EFL_BETA_API_SUPPORT

/*
 * @brief Parse a given .eo file and fill the database.
 *
 * During parsing, the class described into the .eo file is created with
 * all the information related to this class.
 *
 * @param[in] filename Name of the file to parse.
 *
 * @ingroup Eolian
 */
EAPI Eina_Bool eolian_eo_file_parse(const char *filename);

/*
 * @brief Init Eolian.
 *
 * @ingroup Eolian
 */
EAPI int eolian_init(void);

/*
 * @brief Shutdown Eolian.
 *
 * @ingroup Eolian
 */
EAPI int eolian_shutdown(void);

/*
 * @brief Show information about a given class.
 *
 * If class_name is NULL, this function will print information of
 * all the classes stored into the database.
 *
 * @param[in] class_name the class to show
 *
 * @ingroup Eolian
 */
EAPI Eina_Bool eolian_show(const char *class_name);

/*
 * @brief Returns the class type of the given class
 *
 * @param[in] class_name name of the class
 * @return the class type
 *
 * @ingroup Eolian
 */
EAPI Eolian_Class_Type eolian_class_type_get(const char *class_name);

/*
 * @brief Returns the names list of all the classes stored into the database.
 *
 * @return the list
 *
 * @ingroup Eolian
 */
/* Returns the list of class names of the database */
EAPI const Eina_List *eolian_class_names_list_get(void);

/*
 * @brief Indicates if class exists in the database.
 *
 * @param[in] class_name name of the class
 * @return EINA_TRUE if exists, EINA_FALSE otherwise
 *
 * @ingroup Eolian
 */
EAPI Eina_Bool eolian_class_exists(const char *class_name);

/*
 * @brief Returns the description of a class.
 *
 * @param[in] class_name name of the class
 * @return the description of a class
 *
 * @ingroup Eolian
 */
EAPI const char *eolian_class_description_get(const char *class_name);

/*
 * @brief Returns the legacy prefix of a class
 *
 * @param[in] class_name name of the class
 * @return the legacy prefix
 *
 * @ingroup Eolian
 */
EAPI const char *eolian_class_legacy_prefix_get(const char *class_name);

/*
 * @brief Returns the names list of the inherit classes of a class
 *
 * @param[in] class_name name of the class
 * @return the list
 *
 * @ingroup Eolian
 */
EAPI const Eina_List *eolian_class_inherits_list_get(const char *class_name);

/*
 * @brief Returns a list of functions of a class.
 *
 * @param[in] class_name name of the class
 * @param[in] func_type type of the functions to insert into the list.
 * @return the list of Eolian_Function
 *
 * @ingroup Eolian
 */
EAPI const Eina_List *eolian_class_functions_list_get(const char *class_name, Eolian_Function_Type func_type);

/*
 * @brief Returns the Function Id for the default constructor.
 *
 * @param[in] class_name name of the class
 * @return a Function Id
 *
 * @ingroup Eolian
 */
EAPI Eolian_Function eolian_class_default_constructor_get(const char *class_name);

/*
 * @brief Returns the Function Id for the default destructor.
 *
 * @param[in] class_name name of the class
 * @return a Function Id
 *
 * @ingroup Eolian
 */
EAPI Eolian_Function eolian_class_default_destructor_get(const char *class_name);

/*
 * @brief Returns the type of a function
 *
 * @param[in] function_id Id of the function
 * @return the function type
 *
 * @ingroup Eolian
 */
EAPI Eolian_Function_Type eolian_function_type_get(Eolian_Function function_id);

/*
 * @brief Returns the name of a function
 *
 * @param[in] function_id Id of the function
 * @return the function name
 *
 * @ingroup Eolian
 */
EAPI const char *eolian_function_name_get(Eolian_Function function_id);

/*
 * @brief Indicates if a function of a certain type exists in a class.
 *
 * @param[in] class_name name of the class
 * @param[in] func_name name of the function
 * @param[in] f_type type of the function
 * @return EINA_TRUE if exists, EINA_FALSE otherwise
 *
 * @ingroup Eolian
 */
EAPI Eina_Bool eolian_class_function_exists(const char *classname, const char *func_name, Eolian_Function_Type f_type);

/*
 * @brief Returns a specific data for a function.
 *
 * @param[in] function_id Id of the function
 * @param[in] key key to access the data
 * @return the data.
 *
 * @ingroup Eolian
 */
EAPI const char *eolian_function_data_get(Eolian_Function function_id, const char *key);

/*
 * @brief Returns a specific description for a function.
 *
 * @param[in] function_id Id of the function
 * @param[in] key key to access the description
 * @return the description.
 *
 * @ingroup Eolian
 */
#define eolian_function_description_get(function_id, key) eolian_function_data_get((function_id), (key))

/*
 * @brief Returns a parameter of a function pointed by its id.
 *
 * @param[in] function_id Id of the function
 * @param[in] param_name Name of the parameter
 * @return a handle to this parameter.
 *
 * @ingroup Eolian
 */
EAPI Eolian_Function_Parameter eolian_function_parameter_get(const Eolian_Function function_id, const char *param_name);

/*
 * @brief Returns a list of parameter handles for a function pointed by its id.
 *
 * @param[in] function_id Id of the function
 * @return a handle to this parameter.
 *
 * @ingroup Eolian
 */
EAPI const Eina_List *eolian_parameters_list_get(Eolian_Function function_id);

/*
 * @brief Get information about a function parameter
 *
 * @param[in] param_desc parameter handle
 * @param[out] param_dir in/out/inout
 * @param[out] type type of the parameter
 * @param[out] name name of the parameter
 * @param[out] description description of the parameter
 *
 * @ingroup Eolian
 */
EAPI void eolian_parameter_information_get(Eolian_Function_Parameter param_desc, Eolian_Parameter_Dir *param_dir, const char **type, const char **name, const char **description);

/*
 * @brief Get type of a parameter
 *
 * @param[in] param_desc parameter handle
 * @return the type of the parameter
 *
 * @ingroup Eolian
 */
EAPI Eina_Stringshare *eolian_parameter_type_get(const Eolian_Function_Parameter param);

/*
 * @brief Get name of a parameter
 *
 * @param[in] param_desc parameter handle
 * @return the name of the parameter
 *
 * @ingroup Eolian
 */
EAPI Eina_Stringshare *eolian_parameter_name_get(const Eolian_Function_Parameter param);

/*
 * @brief Indicates if a parameter has a const attribute.
 *
 * This function is relevant for properties, to know if a parameter is a const
 * parameter in the get operation.
 *
 * @param[in] param_desc parameter handle
 * @return EINA_TRUE if const in get, EINA_FALSE otherwise
 *
 * @ingroup Eolian
 */
EAPI Eina_Bool eolian_parameter_get_const_attribute_get(Eolian_Function_Parameter param_desc);

/*
 * @brief Get the return type of a function.
 *
 * @param[in] function_id id of the function
 * @param[in] ftype type of the function
 * @return the return type of the function
 *
 * The type of the function is needed because a given function can represent a
 * property, that can be set and get functions.
 *
 * @ingroup Eolian
 */
EAPI const char *eolian_function_return_type_get(Eolian_Function function_id, Eolian_Function_Type ftype);

/*
 * @brief Indicates if a function object is const.
 *
 * @param[in] function_id id of the function
 * @return EINA_TRUE if the object is const, EINA_FALSE otherwise
 *
 * @ingroup Eolian
 */
EAPI Eina_Bool eolian_function_object_is_const(Eolian_Function function_id);

/*
 * @brief Get information about an overriding function (implement).
 *
 * @param[in] impl handle of the implement
 * @param[out] class_name name of the class to override
 * @param[out] func_name name of the function to override
 * @param[out] type type of the function to override
 * @return EINA_TRUE on success, EINA_FALSE otherwise.
 *
 * @ingroup Eolian
 */
EAPI Eina_Bool eolian_implement_information_get(Eolian_Implement impl,
      const char **class_name, const char **func_name, Eolian_Function_Type *type);

/*
 * @brief Get the list of overriding functions defined in a class.
 *
 * @param[in] class_name name of the class.
 * @return a list of Eolian_Implement handles
 *
 * @ingroup Eolian
 */
EAPI const Eina_List *eolian_class_implements_list_get(const char *class_name);

/*
 * @brief Get the list of events defined in a class.
 *
 * @param[in] class_name name of the class.
 * @return a list of Eolian_Event handles
 *
 * @ingroup Eolian
 */
EAPI const Eina_List *eolian_class_events_list_get(const char *class_name);

/*
 * @brief Get information about an event.
 *
 * @param[in] event handle of the event
 * @param[out] event_name name of the event
 * @param[out] event_desc description of the event
 * @return EINA_TRUE on success, EINA_FALSE otherwise.
 *
 * @ingroup Eolian
 */
EAPI Eina_Bool eolian_class_event_information_get(Eolian_Event event, const char **event_name, const char **event_desc);

#endif

#ifdef __cplusplus
} // extern "C" {
#endif

#endif