<?php
class Meta_ValuesModelWpf extends ModelWpf {
	private $keyValueIds = array();

	public function __construct() {
		$this->_setTbl('meta_values');
		FrameWpf::_()->getTable('meta_values')->setEscape(true);
		$this->setIndexes(array(
			'uniq_key' => 'UNIQUE INDEX `uniq_key` (`key_id`, `key2`, `key3`, `key4`, `value`)',
			'i_key'	=> 'INDEX `i_key` (key_id, value(10))'
			));
	}

	public function selectMetaValues( $keyId ) {
		$this->keyValueIds = $this->getKeyValueIds($keyId);
	}
	public function resetMetaValues() {
		$this->keyValueIds = array();
	}

	public function getKeyValueIds( $keyId, $keys = array(), $reverse = false ) {
		$this->addIndexes();
		$metaModel = FrameWpf::_()->getModule('meta')->getModel('meta');
		$maxKeySize = $metaModel->maxKeySize;
		$select = 'id,value';
		$where = array('key_id' => $keyId);
		$uniq = array(); 
		for ($k = $maxKeySize; $k >= 2; $k--) {
			$key = 'key' . $k;
			if (empty($keys[$key])) {
				$select .= ',' . $key;
				$uniq[] = $key;
			} else {
				$where[$key] = $metaModel->getCutKeyValue($keys[$key]);
			}
		}

		$data = $this->setSelectFields($select)->addWhere($where)->getFromTbl();
		$values = array();
	
		foreach ($data as $fields) {
			$key = $fields['value'];
			foreach ($uniq as $k) {
				$key = ( empty($fields[$k]) ? ( $reverse ? '' : '|' ) : $fields[$k] . '|' ) . $key;
			}
			$id = (int) $fields['id'];
			if ($reverse) {
				$values[$id] = $key;
			} else {
				$values[$key] = $id;
			}
		}
		return $values;
	}

	public function getFieldValuesList( $keyId, $field, $keys = array(), $group = false ) {	
		$metaModel = FrameWpf::_()->getModule('meta')->getModel('meta');
		$maxKeySize = $metaModel->maxKeySize;
		$where = array('key_id' => $keyId);
		for ($k = $maxKeySize; $k >= 2; $k--) {
			$key = 'key' . $k;
			if (!empty($keys[$key])) {
				$where[$key] = $metaModel->getCutKeyValue($keys[$key]);
			}
		}
		if (empty($keys['ids'])) {
			$this->addWhere('product_cnt>0');
		} else {
			$this->addWhere('id IN (' . implode(',', UtilsWpf::controlNumericValues($keys['ids'], 'id')) . ')');
		}
		$list = $this->setSelectFields(( $group ? ' DISTINCT ' : '' ) . $field)->addWhere($where)->getFromTbl(array('return' => 'col'));
		return empty($list) ? array() : $list;
	}

	public function getMetaValueTerms( $keyId, $keys = array()) {
		$cntField = ( empty($keys['fbv']) ? 'product_cnt' : 'variation_cnt' );
		if ( !isset($keys['field']) || ( 'id' == $keys['field'] ) ) {
			$metaModel = FrameWpf::_()->getModule('meta')->getModel('meta');
			$maxKeySize = $metaModel->maxKeySize;
			$select = 'id,value,' . $cntField . ' as cnt';
			$where = array('key_id' => $keyId);
			for ($k = $maxKeySize; $k >= 2; $k--) {
				$key = 'key' . $k;
				if (!empty($keys[$key])) {
					$where[$key] = $metaModel->getCutKeyValue($keys[$key]);
				}
			}

			$cntVariation = ( 'variation_cnt' === $cntField ) ? ' OR variation_cnt > 0' : '';
			$this->addWhere( 'product_cnt > 0' . $cntVariation );

			if (!empty($keys['include']) && is_array($keys['include'])) {
				$this->addWhere('id IN (' . implode(',', UtilsWpf::controlNumericValues($keys['include'], 'id')) . ')');
			}
			if (isset($keys['order'])) { 
				$this->setOrderBy('value');
				if ( 'desc' == $keys['order'] ) {
					$this->setSortOrder('DESC');
				}
			}
			$data = $this->setSelectFields($select)->addWhere($where)->getFromTbl();
		} else {
			$field = $keys['field'];
			$where = ( 'int' === $field ) ? ' AND val_int IS NOT NULL' : '';
			$query = "SELECT val_{$field} as id, val_{$field} as value, count(*) as cnt FROM @__meta_data WHERE key_id={$keyId} {$where} GROUP BY val_{$field}";
			$data  = DbWpf::get( $query );
		}
		$terms = array();
	
		foreach ($data as $fields) {
			$term = new stdClass();
			$term->term_id = $fields['id'];
			$term->name    = $fields['value'];
			$term->slug    = $fields['id'];
			$term->count   = $fields['cnt'];
			$terms[]       = $term;
		}
		return empty($terms) ? array() : $terms;
	}

	public function insertValueId( $keyId, $keys, $value ) {
		/*if (empty($value) && '' === $value) {
			return false;
		}*/
		$key = implode('|', $keys) . '|' . $value;
		if (!isset($this->keyValueIds[$key])) {
			$id = $this->insert(array_merge($keys, array('key_id' => $keyId, 'value' => $value)));
			if ($id) {
				$this->keyValueIds[$key] = $id;		
			} else {
				return false;
			}
			
		}
		return $this->keyValueIds[$key];
	}

	public function getMetaValueId( $keyId, $value, $keys = array() ) {
		if (!empty($keys)) {
			$this->addWhere($keys);
		}
		$id = $this->setSelectFields('id')->addWhere(array('key_id' => $keyId, 'value' => $value))->getFromTbl(array('return' => 'one'));
		return $id ? $id : 0;
	}

	public function getMetaValueIds( $keyId, $values, $like = '', $keys = array() ) {

		if (is_array($values) && !empty($values)) {

			foreach ( $values as &$value ) {
				if ( false === strpos( $value, '%' ) ) {
					$value = strtolower( rawurlencode( $value ) );
				}
			}

			$valueStr = implode( "','", $values );

			$this->addWhere( "value in ('" . $valueStr . "')" );
		} else if (!empty($like)) {
			$this->addWhere('value' . $like);
		} else {
			return array(0);
		}

		if (!empty($keys)) {
			$this->addWhere(array($keys));
		}

		$ids = $this->setSelectFields('id')->addWhere(array('key_id' => $keyId))->getFromTbl(array('return' => 'col'));

		return empty($ids) ? array(0) : $ids;
	}

	public function recalcValuesCount( $keyIds = array() ) {
		
		$query = 'UPDATE `@__meta_values` as v SET ' .
			' product_cnt=IF(exists(SELECT 1 FROM `@__meta_data` m WHERE m.key_id=v.key_id AND m.val_id=v.id AND m.is_var!=1 LIMIT 1),1,0),
			  variation_cnt=IF(exists(SELECT 1 FROM `@__meta_data` m WHERE m.key_id=v.key_id AND m.val_id=v.id AND m.is_var=1 LIMIT 1),1,0) ';
		if (!empty($keyIds)) {
			$query .= ' WHERE v.key_id IN (' . implode(',', $keyIds) . ')';
		}
		if (!DbWpf::query($query)) { 
			$this->pushError(DbWpf::getError());
			return false;
		}

		return true;
	}

	public function backupOldValues( $keyIds ) {
		$where = ' WHERE key_id' . ( count($keyIds) ? ' IN (' . implode(',', $keyIds) . ')' : '=' . $keyIds[0] );
		$query = 'INSERT IGNORE INTO `@__meta_values_bk` SELECT id, key_id, key2, key3, key4, value FROM `@__meta_values`' . $where;
		if (!DbWpf::query($query)) {
			$this->pushError(DbWpf::getError());
			return false;
		} 
		if (!DbWpf::query('DELETE FROM `@__meta_values`' . $where)) {
			$this->pushError(DbWpf::getError());
			return false;
		}
		return true;
	}

	public function restoreOldValues( $keyIds ) {
		$where = ' WHERE key_id' . ( count($keyIds) ? ' IN (' . implode(',', $keyIds) . ')' : '=' . $keyIds[0] );
		$query = 'INSERT IGNORE INTO `@__meta_values` SELECT id, key_id, key2, key3, key4, value, 0, 0 FROM `@__meta_values_bk`' . $where;
		if (!DbWpf::query($query)) {
			$this->pushError(DbWpf::getError());
			return false;
		} 
		return true;
	}

}
