/* -*- c-file-style: "ruby" -*- */
/*
  Copyright (C) 2009  Kouhei Sutou <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 version 2.1 as published by the Free Software Foundation.

  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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

#include "rb-grn.h"

#define SELF(object) (RVAL2GRNDB(object))

VALUE rb_cGrnDatabase;

grn_obj *
rb_grn_database_from_ruby_object (VALUE object)
{
    if (!RVAL2CBOOL(rb_obj_is_kind_of(object, rb_cGrnDatabase))) {
	rb_raise(rb_eTypeError, "not a groonga database");
    }

    return RVAL2GRNOBJECT(object, NULL);
}

VALUE
rb_grn_database_to_ruby_object (grn_ctx *context, grn_obj *database,
				rb_grn_boolean owner)
{
    return GRNOBJECT2RVAL(rb_cGrnDatabase, context, database, owner);
}

static VALUE
rb_grn_database_s_create (int argc, VALUE *argv, VALUE klass)
{
    grn_ctx *context;
    grn_obj *database;
    grn_db_create_optarg create_args;
    const char *path = NULL;
    VALUE rb_database;
    VALUE rb_path, options, rb_context, builtin_type_names;

    rb_scan_args(argc, argv, "01", &options);

    rb_grn_scan_options(options,
                        "path", &rb_path,
			"context", &rb_context,
                        "builtin_type_names", &builtin_type_names,
			NULL);

    if (!NIL_P(rb_path))
        path = StringValuePtr(rb_path);
    context = rb_grn_context_ensure(rb_context);

    create_args.builtin_type_names = NULL;
    create_args.n_builtin_type_names = 0;

    database = grn_db_create(context, path, &create_args);
    rb_grn_context_check(context, rb_ary_new4(argc, argv));
    rb_database = GRNOBJECT2RVAL(klass, context, database, RB_GRN_FALSE);
    rb_grn_context_check(context, rb_ary_new4(argc, argv));

    if (rb_block_given_p())
        return rb_ensure(rb_yield, rb_database,
			 rb_grn_object_close, rb_database);
    else
        return rb_database;
}

static VALUE
rb_grn_database_initialize (int argc, VALUE *argv, VALUE self)
{
    grn_ctx *context;
    grn_obj *database;
    const char *path;
    VALUE rb_path, options, rb_context;

    rb_scan_args(argc, argv, "11", &rb_path, &options);

    path = StringValuePtr(rb_path);
    rb_grn_scan_options(options,
			"context", &rb_context,
			NULL);

    context = rb_grn_context_ensure(rb_context);

    database = grn_db_open(context, path);
    rb_grn_object_initialize(self, context, database);
    rb_grn_context_check(context, self);

    return Qnil;
}

static VALUE
rb_grn_database_s_open (int argc, VALUE *argv, VALUE klass)
{
    VALUE database;

    database = rb_grn_object_alloc(klass);
    rb_grn_database_initialize(argc, argv, database);
    if (rb_block_given_p())
        return rb_ensure(rb_yield, database, rb_grn_object_close, database);
    else
        return database;
}

void
rb_grn_init_database (VALUE mGrn)
{
    rb_cGrnDatabase = rb_define_class_under(mGrn, "Database", rb_cGrnObject);

    rb_define_singleton_method(rb_cGrnDatabase, "create",
			       rb_grn_database_s_create, -1);
    rb_define_singleton_method(rb_cGrnDatabase, "open",
			       rb_grn_database_s_open, -1);

    rb_define_method(rb_cGrnDatabase, "initialize",
		     rb_grn_database_initialize, -1);
}