<?php
/**
 * Created by PhpStorm.
 * User: whwyy
 * Date: 2018/3/30 0030
 * Time: 14:39
 */
declare(strict_types=1);

namespace Database;


use Exception;
use Database\Base\BaseActiveRecord;
use Snowflake\Core\ArrayAccess;
use Snowflake\Error\Logger;
use Snowflake\Snowflake;

defined('SAVE_FAIL') or define('SAVE_FAIL', 3227);
defined('FIND_OR_CREATE_MESSAGE') or define('FIND_OR_CREATE_MESSAGE', 'Create a new model, but the data cannot be empty.');

/**
 * Class Orm
 * @package Database
 *
 * @property $attributes
 * @property-read $oldAttributes
 * @method beforeSearch($model)
 */
class ActiveRecord extends BaseActiveRecord
{

	const DECR = 'decr';
	const INCR = 'incr';


	/**
	 * @return array
	 */
	public function rules()
	{
		return [];
	}

	/**
	 * @param string $column
	 * @param int $value
	 * @return ActiveRecord|false
	 * @throws Exception
	 */
	public function increment(string $column, int $value)
	{
		if (!$this->mathematics(self::INCR, [$column => $value])) {
			return false;
		}
		$this->{$column} += $value;
		return $this->refresh();
	}


	/**
	 * @param string $column
	 * @param int $value
	 * @return ActiveRecord|false
	 * @throws Exception
	 */
	public function decrement(string $column, int $value)
	{
		if (!$this->mathematics(self::DECR, [$column => $value])) {
			return false;
		}
		$this->{$column} -= $value;
		return $this->refresh();
	}


	/**
	 * @param array $columns
	 * @return ActiveRecord|false
	 * @throws Exception
	 */
	public function increments(array $columns)
	{
		if (!$this->mathematics(self::INCR, $columns)) {
			return false;
		}
		foreach ($columns as $key => $attribute) {
			$this->$key += $attribute;
		}
		return $this;
	}


	/**
	 * @param array $columns
	 * @return ActiveRecord|false
	 * @throws Exception
	 */
	public function decrements(array $columns)
	{
		if (!$this->mathematics(self::DECR, $columns)) {
			return false;
		}
		foreach ($columns as $key => $attribute) {
			$this->$key -= $attribute;
		}
		return $this;
	}

	/**
	 * @param $attributes
	 * @param $condition
	 * @return bool|ActiveRecord|mixed
	 * @throws Exception
	 */
	public static function findOrCreate(array $condition, array $attributes = [])
	{
		$select = static::find()->where($condition)->first();
		if (!empty($select)) {
			return $select;
		}
		if (empty($attributes)) {
			return \logger()->addError(FIND_OR_CREATE_MESSAGE, 'mysql');
		}
		$select = new static();
		$select->attributes = $attributes;
		if (!$select->save()) {
			throw new Exception($select->getLastError());
		}
		return $select;
	}


	/**
	 * @param $action
	 * @param $columns
	 * @param array $condition
	 * @return array|bool|int|string|null
	 * @throws Exception
	 */
	private function mathematics($action, $columns, $condition = [])
	{
		if (empty($condition)) {
			$condition = [$this->getPrimary() => $this->getPrimaryValue()];
		}
		return static::getDb()->createCommand()
			->mathematics(self::getTable(), [$action => $columns], $condition)
			->exec();
	}

	/**
	 * @param $column
	 * @param $value
	 * @param array $condition
	 * @return bool
	 * @throws Exception
	 */
	public static function incrAll($column, $value, $condition = [])
	{
		return static::getDb()->createCommand()
			->mathematics(self::getTable(), [self::INCR => [$column, $value]], $condition)
			->exec();
	}


	/**
	 * @param $column
	 * @param $value
	 * @param array $condition
	 * @return bool
	 * @throws Exception
	 */
	public static function decrAll($column, $value, $condition = [])
	{
		return static::getDb()->createCommand()
			->mathematics(self::getTable(), [self::DECR => [$column, $value]], $condition)
			->exec();
	}


	/**
	 * @param array $attributes
	 * @return bool
	 * @throws
	 */
	public function update(array $attributes)
	{
		return $this->save($attributes);
	}

	/**
	 * @param array $params
	 * @param array $condition
	 * @return bool|static
	 * @throws Exception
	 */
	public static function insertOrUpdate(array $params, array $condition)
	{
		$first = static::findOrCreate($condition, $params);
		$first->attributes = $params;
		if (!$first->save()) {
			return false;
		}
		return $first;
	}

	/**
	 * @param array $data
	 * @return bool
	 * @throws Exception
	 */
	public static function batchInsert(array $data): bool
	{
		/** @var static $class */
		$class = Snowflake::createObject(static::className());
		if (empty($data)) {
			return $class->addError('Insert data empty.', 'mysql');
		}
		return $class::find()->batchInsert($data);
	}

	/**
	 * @return bool
	 * @throws Exception
	 */
	public function delete()
	{
		$conditions = $this->_oldAttributes;
		if (empty($conditions)) {
			return $this->addError("Delete condition do not empty.", 'mysql');
		}
		$primary = $this->getPrimary();

		if (!empty($primary)) {
			$sul = static::deleteAll([$primary => $this->getAttribute($primary)]);
		} else {
			$sul = static::deleteAll($conditions);
		}
		if (!$sul) {
			return false;
		}
		if (method_exists($this, 'afterDelete')) {
			$this->afterDelete();
		}
		return true;
	}


	/**
	 * @param       $condition
	 * @param array $attributes
	 *
	 * @return bool
	 * @throws Exception
	 */
	public static function batchUpdate($condition, $attributes = [])
	{
		$condition = static::find()->where($condition);
		return $condition->batchUpdate($attributes);
	}

	/**
	 * @param       $condition
	 * @param array $attributes
	 *
	 * @return array|mixed|null|Collection
	 * @throws Exception
	 */
	public static function findAll($condition, $attributes = [])
	{
		$query = static::find()->where($condition);
		if (!empty($attributes)) {
			$query->bindParams($attributes);
		}
		return $query->all();
	}

	/**
	 * @param $data
	 * @return array|mixed
	 * @throws Exception
	 */
	private function resolveObject($data)
	{
		if (is_numeric($data) || !is_string($data)) {
			return $data;
		}
		if (!method_exists($this, $data)) {
			return $data;
		}
		$resolve = $this->{$data}();
		if ($resolve instanceof Collection) {
			return $resolve->toArray();
		}
		if ($resolve instanceof ActiveRecord) {
			return $resolve->toArray();
		}
		if (is_object($resolve)) {
			return get_object_vars($resolve);
		}
		return $resolve;
	}


	/**
	 * @return array|mixed
	 * @throws Exception
	 */
	public function toArray()
	{
		$data = [];
		foreach ($this->_attributes as $key => $val) {
			$data[$key] = $this->getAttribute($key);
		}
		return array_merge($data, $this->runRelate());
	}

	/**
	 * @return array
	 * @throws Exception
	 */
	private function runRelate()
	{
		$relates = [];
		if (empty($this->_relate)) {
			return $relates;
		}
		foreach ($this->_relate as $key => $val) {
			$relates[$key] = $this->resolveObject($val);
		}
		return $relates;
	}


	/**
	 * @param $modelName
	 * @param $foreignKey
	 * @param $localKey
	 * @return mixed|ActiveQuery
	 * @throws Exception
	 */
	public function hasOne(string $modelName, $foreignKey, $localKey)
	{
		if (!$this->has($localKey)) {
			throw new Exception("Need join table primary key.");
		}

		$value = $this->getAttribute($localKey);

		$relation = $this->getRelation();

		return new HasOne($modelName, $foreignKey, $value, $relation);
	}


	/**
	 * @param $modelName
	 * @param $foreignKey
	 * @param $localKey
	 * @return mixed|ActiveQuery
	 * @throws Exception
	 */
	public function hasCount($modelName, $foreignKey, $localKey)
	{
		if (!$this->has($localKey)) {
			throw new Exception("Need join table primary key.");
		}

		$value = $this->getAttribute($localKey);

		$relation = $this->getRelation();

		return new HasCount($modelName, $foreignKey, $value, $relation);
	}


	/**
	 * @param $modelName
	 * @param $foreignKey
	 * @param $localKey
	 * @return mixed|ActiveQuery
	 * @throws Exception
	 */
	public function hasMany($modelName, $foreignKey, $localKey)
	{
		if (!$this->has($localKey)) {
			throw new Exception("Need join table primary key.");
		}

		$value = $this->getAttribute($localKey);

		$relation = $this->getRelation();

		return new HasMany($modelName, $foreignKey, $value, $relation);
	}

	/**
	 * @param $modelName
	 * @param $foreignKey
	 * @param $localKey
	 * @return mixed|ActiveQuery
	 * @throws Exception
	 */
	public function hasIn($modelName, $foreignKey, $localKey)
	{
		if (!$this->has($localKey)) {
			throw new Exception("Need join table primary key.");
		}

		$value = $this->getAttribute($localKey);

		$relation = $this->getRelation();

		return new HasMany($modelName, $foreignKey, $value, $relation);
	}

	/**
	 * @return bool
	 * @throws Exception
	 */
	public function afterDelete()
	{
		if (!$this->hasPrimary()) {
			return TRUE;
		}
		$value = $this->getPrimaryValue();
		if (empty($value)) {
			return TRUE;
		}
		return TRUE;
	}

	/**
	 * @return bool
	 * @throws Exception
	 */
	public function beforeDelete()
	{
		if (!$this->hasPrimary()) {
			return TRUE;
		}
		$value = $this->getPrimaryValue();
		if (empty($value)) {
			return TRUE;
		}
		return TRUE;
	}
}