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/*
* The MIT License
*
* Copyright (c) 2010 - 2012 Shuhei Tanuma
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/

#include "php_git2.h"
#include <spl/spl_array.h>
#include <zend_interfaces.h>

PHPAPI zend_class_entry *git2_index_class_entry;

static void php_git2_index_free_storage(php_git2_index *object TSRMLS_DC)
{
if (object->index != NULL) {
object->index = NULL;
}
zend_object_std_dtor(&object->zo TSRMLS_CC);
efree(object);
}

zend_object_value php_git2_index_new(zend_class_entry *ce TSRMLS_DC)
{
zend_object_value retval;

PHP_GIT2_STD_CREATE_OBJECT(php_git2_index);
return retval;
}

ZEND_BEGIN_ARG_INFO_EX(arginfo_git2_index___construct, 0,0,1)
ZEND_ARG_INFO(0, entry)
ZEND_END_ARG_INFO()

/*
{{{ proto: Git2\Index::__construct(string $path)
*/
PHP_METHOD(git2_index, __construct)
{
char *path;
git_index *index;
int error, path_len = 0;
php_git2_index *m_index;

if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC,
"s", &path, &path_len) == FAILURE) {
return;
}

error = git_index_open(&index, path);
m_index = PHP_GIT2_GET_OBJECT(php_git2_index, getThis());
m_index->index = index;
}
/* }}} */


/*
{{{ proto: Git2\Index::count()
*/
PHP_METHOD(git2_index, count)
{
php_git2_index *m_index;

m_index = PHP_GIT2_GET_OBJECT(php_git2_index, getThis());
RETURN_LONG(git_index_entrycount(m_index->index));
}
/* }}} */

/*
{{{ proto: Git2\Index::writeTree()
*/
PHP_METHOD(git2_index, writeTree)
{
php_git2_index *m_index;
git_oid tree_oid;
char oid_out[GIT_OID_HEXSZ] = {0};
int error = 0;

m_index = PHP_GIT2_GET_OBJECT(php_git2_index, getThis());
error = git_tree_create_fromindex(&tree_oid, m_index->index);

git_oid_fmt(oid_out, &tree_oid);
RETVAL_STRINGL(oid_out,GIT_OID_HEXSZ,1);
}
/* }}} */



/* Iterator Implementation */

/*
{{{ proto: Git2\Tree::current()
*/
PHP_METHOD(git2_index, current)
{
php_git2_index *m_index;
const git_index_entry *entry;
zval *z_entry;

m_index = PHP_GIT2_GET_OBJECT(php_git2_index, getThis());
entry = git_index_get(m_index->index, m_index->offset);
if (entry == NULL) {
zend_throw_exception_ex(spl_ce_InvalidArgumentException, 0 TSRMLS_CC,
"specified offset does not exist. %d");
RETURN_FALSE;
}

php_git2_create_index_entry(&z_entry, (git_index_entry *)entry TSRMLS_CC);
RETURN_ZVAL(z_entry, 0, 1);
}

/*
{{{ proto: Git2\Tree::key()
*/
PHP_METHOD(git2_index, key)
{
php_git2_index *m_index;

m_index = PHP_GIT2_GET_OBJECT(php_git2_index, getThis());
RETURN_LONG(m_index->offset);
}

/*
{{{ proto: Git2\Tree::valid()
*/
PHP_METHOD(git2_index, next)
{
php_git2_index *m_index;

m_index = PHP_GIT2_GET_OBJECT(php_git2_index, getThis());
m_index->offset++;
}

/*
{{{ proto: Git2\Tree::rewind()
*/
PHP_METHOD(git2_index, rewind)
{
php_git2_index *m_index;

m_index = PHP_GIT2_GET_OBJECT(php_git2_index, getThis());
m_index->offset = 0;
}

/*
{{{ proto: Git2\Index::valid()
*/
PHP_METHOD(git2_index, valid)
{
php_git2_index *m_index;
int entry_count = 0;

m_index = PHP_GIT2_GET_OBJECT(php_git2_index, getThis());
entry_count = git_index_entrycount(m_index->index);
if (m_index->offset < entry_count) {
RETURN_TRUE;
} else {
RETURN_FALSE;
}
}
/* }}} */


static zend_function_entry php_git2_index_methods[] = {
PHP_ME(git2_index, __construct, arginfo_git2_index___construct, ZEND_ACC_PUBLIC | ZEND_ACC_CTOR)
PHP_ME(git2_index, count, NULL, ZEND_ACC_PUBLIC)
/* Iterator Implementation */
PHP_ME(git2_index, current, NULL, ZEND_ACC_PUBLIC)
PHP_ME(git2_index, key, NULL, ZEND_ACC_PUBLIC)
PHP_ME(git2_index, next, NULL, ZEND_ACC_PUBLIC)
PHP_ME(git2_index, rewind, NULL, ZEND_ACC_PUBLIC)
PHP_ME(git2_index, valid, NULL, ZEND_ACC_PUBLIC)
PHP_ME(git2_index, writeTree, NULL, ZEND_ACC_PUBLIC)
{NULL,NULL,NULL}
};

void php_git2_index_init(TSRMLS_D)
{
zend_class_entry ce;

INIT_NS_CLASS_ENTRY(ce, PHP_GIT2_NS, "Index", php_git2_index_methods);
git2_index_class_entry = zend_register_internal_class(&ce TSRMLS_CC);
git2_index_class_entry->create_object = php_git2_index_new;
zend_class_implements(git2_index_class_entry TSRMLS_CC, 1, spl_ce_Iterator);
}
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