#ifndef _ZERO_PINYIN_SERVICE_H_
#define _ZERO_PINYIN_SERVICE_H_

#include <glib.h>
#include <string.h>
#include <sqlite3.h>

G_BEGIN_DECLS

#define ZERO_PINYIN_WELL_KNOWN_NAME "com.emacsos.zero.ZeroPinyinService1"
#define ZERO_PINYIN_OBJECT_PATH "/com/emacsos/zero/ZeroPinyinService1"
#define ZERO_PINYIN_INTERFACE_NAME "com.emacsos.zero.ZeroPinyinService1.ZeroPinyinServiceInterface"

typedef struct {
	gint shengmu_i;
	gint yunmu_i;
	guint length;
} Pinyin;

typedef struct {
	gchar* str;		/* the candidate string */
	guint freq;		/* word frequency [0, 65535] */
	guint user_freq;	/* user frequency [0, 65535] */
	guint matched_py_length; /* matched preedit_str length */
} Candidate;

/**
 * an implementation of get_candidates() with simple test data.
 */
void get_candidates_test (const char* preedit_str,
			  const guint fetch_size,
			  GVariantBuilder *candidates_builder,
			  GVariantBuilder *matched_lengths_builder);

/**
 * fetch candidates for preedit_str.
 *
 * @preedit_str the preedit_str
 * @fetch_size try to fetch this many candidates if possible
 * @candidates_builder candidates will be added to this builder
 * @matched_lengths_builder matched preedit_str length will be added to this builder
 */
void get_candidates (sqlite3* db,
		     const char* preedit_str,
		     const guint fetch_size,
		     GVariantBuilder *candidates_builder,
		     GVariantBuilder *matched_lengths_builder);

G_END_DECLS

#endif /* _ZERO_PINYIN_SERVICE_H_ */