/*
  Copyright (C) 2009-2017  Brazil
  Copyright (C) 2019-2024  Sutou Kouhei <kou@clear-code.com>

  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
  version 2.1 of the License, or (at your option) any later version.

  This library is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public
  License along with this library; if not, write to the Free Software
  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
*/

#pragma once

#ifdef __cplusplus
extern "C" {
#endif

/* buffered index builder */

typedef struct _grn_ii grn_ii;
typedef struct _grn_ii_buffer grn_ii_buffer;

GRN_API grn_column_flags
grn_ii_get_flags(grn_ctx *ctx, grn_ii *ii);
GRN_API uint32_t
grn_ii_get_n_elements(grn_ctx *ctx, grn_ii *ii);
GRN_API grn_obj *
grn_ii_get_lexicon(grn_ctx *ctx, grn_ii *ii);

GRN_API void
grn_ii_cursor_set_min_enable_set(bool enable);
GRN_API bool
grn_ii_cursor_set_min_enable_get(void);

GRN_API uint32_t
grn_ii_estimate_size(grn_ctx *ctx, grn_ii *ii, grn_id tid);
GRN_API uint32_t
grn_ii_estimate_size_for_query(grn_ctx *ctx,
                               grn_ii *ii,
                               const char *query,
                               unsigned int query_len,
                               grn_search_optarg *optarg);
GRN_API uint32_t
grn_ii_estimate_size_for_lexicon_cursor(grn_ctx *ctx,
                                        grn_ii *ii,
                                        grn_table_cursor *lexicon_cursor);

GRN_API grn_ii_buffer *
grn_ii_buffer_open(grn_ctx *ctx,
                   grn_ii *ii,
                   long long unsigned int update_buffer_size);
GRN_API grn_rc
grn_ii_buffer_append(grn_ctx *ctx,
                     grn_ii_buffer *ii_buffer,
                     grn_id rid,
                     unsigned int section,
                     grn_obj *value);
GRN_API grn_rc
grn_ii_buffer_commit(grn_ctx *ctx, grn_ii_buffer *ii_buffer);
GRN_API grn_rc
grn_ii_buffer_close(grn_ctx *ctx, grn_ii_buffer *ii_buffer);

GRN_API grn_rc
grn_ii_posting_add(grn_ctx *ctx,
                   grn_posting *pos,
                   grn_hash *s,
                   grn_operator op);
/* Deprecated since 10.0.3. Use grn_rset_add_records() instead. */
GRN_API grn_rc
grn_ii_posting_add_float(grn_ctx *ctx,
                         grn_posting *pos,
                         grn_hash *s,
                         grn_operator op);
GRN_API void
grn_ii_resolve_sel_and(grn_ctx *ctx, grn_hash *s, grn_operator op);

GRN_API grn_rc
grn_ii_select_by_id(
  grn_ctx *ctx, grn_ii *ii, grn_id id, grn_hash *result_set, grn_operator op);

/* Experimental */
typedef struct _grn_ii_cursor grn_ii_cursor;
GRN_API grn_ii_cursor *
grn_ii_cursor_open(grn_ctx *ctx,
                   grn_ii *ii,
                   grn_id tid,
                   grn_id min,
                   grn_id max,
                   int nelements,
                   int flags);
GRN_API grn_ii *
grn_ii_cursor_get_ii(grn_ctx *ctx, grn_ii_cursor *cursor);
GRN_API grn_rc
grn_ii_cursor_set_scales(grn_ctx *ctx,
                         grn_ii_cursor *cursor,
                         float *scales,
                         size_t n_scales);
GRN_API grn_rc
grn_ii_cursor_set_scale(grn_ctx *ctx, grn_ii_cursor *cursor, float scale);
GRN_API grn_posting *
grn_ii_cursor_next(grn_ctx *ctx, grn_ii_cursor *c);
GRN_API grn_posting *
grn_ii_cursor_next_pos(grn_ctx *ctx, grn_ii_cursor *c);
GRN_API grn_rc
grn_ii_cursor_close(grn_ctx *ctx, grn_ii_cursor *c);

#ifdef __cplusplus
}
#endif
