<?php

namespace ModStart\Field;

use Illuminate\Contracts\Support\Arrayable;

use Illuminate\Contracts\Support\Renderable;

use Illuminate\Database\Eloquent\Model;

use Illuminate\Support\Facades\Log;

use Illuminate\Support\Facades\Validator;

use Illuminate\Support\Facades\View;

use ModStart\Core\Dao\ModelUtil;

use ModStart\Core\Util\CRUDUtil;

use ModStart\Core\Util\IdUtil;

use ModStart\Detail\Detail;

use ModStart\Field\Type\FieldRenderMode;

use ModStart\Form\Form;

use ModStart\Grid\Grid;

use ModStart\ModStart;

use ModStart\Support\Concern\HasFluentAttribute;

use ModStart\Support\Manager\FieldManager;

/**

* Class AbstractField

* @package ModStart\Field

*

* @method $this listable($value = null)

*

* @method $this addable($value = null)

*

* @method $this editable($value = null)

*

* @method $this formShowOnly($value = null)

*

* @method $this showable($value = null)

*

* @method $this sortable($value = null)

*

* @method $this renderMode($value = null)

*

* form模式：默认值

* @method $this defaultValue($value = null)

*

* form模式：提示文字

* @method $this placeholder($value = null)

*

* form模式：只读

* @method $this readonly($value = null)

*

* form模式：帮助文字，样式

* @method $this help($value = null)

*

* grid|form|detail模式：字段提示

* @method $this tip($value = null)

*

* form模式：字段样式，或直接作用到 input, textarea 等元素上

* @method $this styleFormField($value = null)

*

* grid模式：字段宽度

* @method $this width($value = null)

*

* @method $this hookFormatValue($value = null)

* @method $this hookValueUnserialize($value = null)

*

* > $value = function ($value, AbstractField $field) { return $value; }

* @method $this hookValueSerialize($value = null)

*

* > $value = function ($itemId, AbstractField $field) { }

* @method $this hookValueSaved($value = null)

*

* grid|form|detail模式：渲染自定义回调

* > $value = function(AbstractField $field, $item, $index){ return $item->title; }

* @method $this hookRendering($value = null)

*

* @method $this isLayoutField($vlaue = null)

* @method $this isCustomField($vlaue = null)

* @method $this gridFixed($vlaue = null)

* grid模式：是否启用快捷编辑

* > $value = true

* > $value = function(AbstractField $field, $item, $index){ return true; }

* @method $this gridEditable($vlaue = null)

*

* >>>>>> 数据流转换流程 >>>>>>

*

* grid.request

* -> repository->get

* -> hookValueUnserialize(function($value, AbstractField $field){ return $value; })

* -> unserializeValue($value, AbstractField $field)

* -> hookFormatValue(function($value, AbstractField $field){ return $value;})

* -> view->render

*

* form.add

* -> view->render

*

* form.addRequest

* -> prepareInput($value, $dataSubmitted)

* -> serializeValue($value, $dataSubmitted)

* -> hookValueSerialize(function($value, AbstractField $field){ return $value; })

* -> repository->add

*

* form.formRequest

* -> prepareInput($value, $dataSubmitted)

* -> serializeValue($value, $dataSubmitted)

* -> hookValueSerialize(function($value, AbstractField $field){ return $value; })

* -> repository->add

*

* form.edit

* -> repository->editing

* -> hookValueUnserialize(function($value, AbstractField $field){ return $value; })

* -> unserializeValue($value, AbstractField $field)

* -> hookFormatValue(function($value, AbstractField $field){ return $value;})

* -> view->render

*

* form.editRequest

* -> prepareInput($value, $dataSubmitted)

* -> serializeValue($value, $dataSubmitted)

* -> hookValueSerialize(function($value, AbstractField $field){ return $value; })

* -> repository->edit

*

* detail.show

* -> repository->show

* -> hookValueUnserialize(function($value, AbstractField $field){ return $value; })

* -> unserializeValue($value, AbstractField $field)

* -> hookFormatValue(function($value, AbstractField $field){ return $value;})

* -> view->render

*

* form.deleteRequest

* -> repository->deleting

* -> repository->delete

*

*/

class AbstractField implements Renderable

{

use HasFluentAttribute;

protected static $css = [];

protected static $js = [];

protected $script = '';

/** @var Form|Grid|Detail $context */

protected $context;

protected $id;

/**

* @var string 表单name

*/

protected $name;

/**

* @var string 数据表字段名

*/

protected $column;

/**

* @var mixed|null 表单名称

*/

protected $label;

/**

* @var null 字段值，null表示没有值，非null表示有值

*/

protected $value = null;

/**

* @var null 默认值，null表示没有默认值，非null表示有默认值

*/

protected $defaultValue = null;

/**

* @var null ?

*/

protected $fixedValue = null;

/**

* @var array 校验规则，如['required']，表单模式下生效

*/

protected $rules = [];

protected $view = null;

protected $variables = [];

/**

* 当前条目

* grid模式：当前条目

* form模式：edit当前编辑条目

*

* @var Model|\stdClass

*/

protected $item;

protected $fluentAttributes = [

'listable',

'addable',

'editable',

'formShowOnly',

'showable',

'sortable',

'renderMode',

'defaultValue',

'placeholder',

'help',

'tip',

'width',

'styleFormField',

'readonly',

'hookFormatValue',

'hookValueUnserialize',

'hookValueSerialize',

'hookValueSaved',

'hookRendering',

'isLayoutField',

'isCustomField',

'gridFixed',

'gridEditable',

];

/**

* 字段渲染模式，默认为 add，请查看 @see FieldRenderMode

* @var string

*/

protected $listable = true;

protected $addable = true;

protected $editable = true;

protected $formShowOnly = false;

protected $showable = true;

protected $sortable = false;

protected $renderMode;

protected $placeholder = null;

protected $help = null;

protected $tip = null;

protected $styleFormField = null;

protected $width = '';

protected $readonly = false;

/**

* 格式化值

* @var \Closure

*/

protected $hookFormatValue;

/**

* 将DB中的值反序列化

* @var \Closure

*/

protected $hookValueUnserialize;

/**

* 将值序列化存储在DB中

* @var \Closure

*/

protected $hookValueSerialize;

/**

* 保存已完成

* @var \Closure

*/

protected $hookValueSaved;

protected $hookRendering;

/**

* 是否为布局类

* @var bool

*/

protected $isLayoutField = false;

/**

* 是否为自定义字段（自定义字段不参与Form中的addRequest、editRequest计算）

* @var bool

*/

protected $isCustomField = false;

/**

* 数据表示模式下浮动布局

* @var string null|left|right

*/

protected $gridFixed = null;

/**

* @var bool 行内编辑

*/

protected $gridEditable = false;

public static function getAssets()

{

return [

'css' => static::$css,

'js' => static::$js,

];

}

public function __construct($column, $arguments = [])

{

$this->id = IdUtil::generate('Field');

$this->column = $column;

if (isset($arguments[0])) {

$this->label = $arguments[0];

} else {

$this->label = null;

}

$this->setup();

FieldManager::uses(static::class);

}

protected function setup()

{

}

public function postSetup()

{

}

public function context($context = null)

{

if (null === $context) {

return $this->context;

}

$this->context = $context;

return $this->context;

}

public function rules($rule = null)

{

if (is_null($rule)) {

return $this->rules;

}

// echo json_encode([$this->column, $this->rules]) . "\n";

if (is_array($rule)) {

$rule = array_filter($rule);

$this->rules = array_merge($this->rules, $rule);

} else {

if (!empty($rule)) {

$this->rules[] = $rule;

}

}

// $rules = array_filter(explode('|', "{$this->rules}|$rules"));

// $this->rules = implode('|', $rules);

return $this;

}

/**

* @return $this|array

*/

public function required()

{

return $this->rules('required');

}

/**

* @return $this|array

*/

public function ruleRegex($regex)

{

return $this->rules('regex:' . $regex);

}

/**

* 匹配 Url

* @return $this|array

*/

public function ruleUrl()

{

return $this->ruleRegex('/^https?:\/\//');

}

/**

* @return $this|array

*/

public function ruleUnique($table, $field = null)

{

if (null === $field) {

$field = $this->column();

}

return $this->rules('unique:' . $table . ',' . $field . ',' . CRUDUtil::id());

}

public function id()

{

return $this->id;

}

public function column()

{

return $this->column;

}

private function formatName($column)

{

if (is_string($column)) {

$names = explode('.', $column);

if (count($names) == 1) {

return $names[0];

}

$name = array_shift($names);

foreach ($names as $piece) {

$name .= "[$piece]";

}

return $name;

}

}

public function name($value = null)

{

if (null === $value) {

if (empty($this->name)) {

return $this->formatName($this->column);

}

return $this->name;

}

$this->name = $value;

return $this;

}

public function label($value = null)

{

if (null === $value) {

return $this->label;

}

$this->label = $value;

return $this;

}

public function value($value = null)

{

if (null === $value) {

return $this->value;

}

$this->value = $value;

return $this;

}

public function fixedValue($fixedValue = null)

{

if (null === $fixedValue) {

return $this->fixedValue;

}

$this->fixedValue = $fixedValue;

return $this;

}

public function setValue($value)

{

$this->value = $value;

return $this;

}

/**

* @param null $item

* @return $this|Model|\stdClass

*/

public function item($item = null)

{

if (null === $item) {

return $this->item;

}

$this->item = $item;

return $this;

}

/**

* 数据反序列化

* 数据从存储系统（如数据库）读取出来，会调用此方法转换为字段 $value 值

* @param mixed $value 字段值

* @param AbstractField $field 字段对象

* @return mixed

*/

public function unserializeValue($value, AbstractField $field)

{

return $value;

}

/**

* 字段值序列化

* 数据提交到存储系统（如数据库）时，会调用此方法转换为存储值

* @param mixed $value 字段值

* @param mixed $model 当前记录

* @return mixed

*/

public function serializeValue($value, $model)

{

return $value;

}

/**

* 字段输入获取准备

* 数据从用户输入获后需要进行的处理，如转换、验证等，如果异常可以直接抛出 BizException 异常

* @param mixed $value 字段值

* @param array $dataSubmitted 用户提交的所有数据

* @return mixed

*/

public function prepareInput($value, $dataSubmitted)

{

return $value;

}

/**

* 填充字段值，data包含当前记录

* @param Arrayable|array $item

*/

public function fill($item)

{

if ($this->isLayoutField()) {

return;

}

$this->item = $item;

if (is_array($this->column)) {

foreach ($this->column as $key => $column) {

$value = array_get($item, $column);

if ($this->hookValueUnserialize) {

$value = call_user_func($this->hookValueUnserialize, $value, $this);

}

$value = $this->unserializeValue($value, $this);

if ($this->hookFormatValue) {

$value = call_user_func($this->hookFormatValue, $value, $this);

}

$this->value[$key] = $value;

}

return;

}

if (is_array($item)) {

$value = array_get($item, $this->column);

} else {

if (str_contains($this->column, '.')) {

$value = ModelUtil::traverse($item, $this->column);

} else {

if (ModelUtil::hasAtttibute($item, $this->column)) {

$value = $item->{$this->column};

} else {

$value = null;

//echo json_encode($this->column) . " - " . json_encode($item) . " - " . json_encode($value) . "\n";

}

}

}

if ($this->hookValueUnserialize) {

$value = call_user_func($this->hookValueUnserialize, $value, $this);

}

$value = $this->unserializeValue($value, $this);

if ($this->hookFormatValue) {

$value = call_user_func($this->hookFormatValue, $value, $this);

}

$this->value = $value;

}

/**

* Add variables to field view.

*

* @param array $variables

*

* @return $this

*/

public function addVariables(array $variables = [])

{

$this->variables = array_merge($this->variables, $variables);

return $this;

}

public function setVariable($key, $value)

{

$this->variables[$key] = $value;

return $this;

}

public function getVariable($key, $default = null)

{

if (isset($this->variables[$key])) {

return $this->variables[$key];

}

return $default;

}

/**

* Get validator for this field.

*

* @param array $input

*

* @return bool|Validator

*/

public function getValidator(array $input)

{

$rules = $attributes = [];

if (!$fieldRules = $this->rules()) {

return false;

}

if (is_string($this->column)) {

if (!array_has($input, $this->column)) {

return false;

}

$rules[$this->column] = $fieldRules;

$attributes[$this->column] = $this->label;

}

if (is_array($this->column)) {

foreach ($this->column as $key => $column) {

if (!array_key_exists($column, $input)) {

continue;

}

$input[$column . $key] = array_get($input, $column);

$rules[$column . $key] = $fieldRules;

$attributes[$column . $key] = $this->label . "[$column]";

}

}

return Validator::make($input, $rules, [], $attributes);

}

protected function variables()

{

// echo $this->column . " : " . json_encode($this->value()) . "\n";

$variables = array_merge($this->fluentAttributeVariables(), $this->variables, [

'id' => $this->id,

'name' => $this->name(),

'value' => $this->value(),

'fixedValue' => $this->fixedValue(),

'label' => $this->label,

'column' => $this->column,

'placeholder' => $this->placeholder(),

'rules' => $this->rules,

]);

// echo json_encode($variables, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE) . "\n";

return $variables;

}

private function transformVariables($variables, $param)

{

switch ($this->renderMode()) {

case FieldRenderMode::GRID:

if ($variables['gridEditable'] instanceof \Closure) {

$variables['gridEditable'] = call_user_func_array($variables['gridEditable'], [

$this,

$param['item'],

$param['index'],

]);

}

break;

}

return $variables;

}

public function view($mode = '', $name = null)

{

if (!empty($this->view)) {

return $this->view . ($mode ? '-' . $mode : '');

}

if (null === $name) {

$class = explode('\\', get_called_class());

$name = lcfirst(end($class));

}

return 'modstart::core.field.' . $name . ($mode ? '-' . $mode : '');

}

public function render()

{

return $this->renderView($this, $this->item);

}

public function renderView(AbstractField $field, $item, $index = 0)

{

try {

$column = $field->column();

$variables = $this->variables();

if ($this->hookRendering instanceof \Closure) {

$ret = call_user_func($this->hookRendering, $this, $item, $index);

if (null !== $ret) {

if ($ret instanceof AutoRenderedFieldValue) {

$autoRenderedVariables = $variables;

$autoRenderedVariables['value'] = $ret->getValue();

return view('modstart::core.field.autoRenderedField-' . $this->renderMode, $autoRenderedVariables)

->render();

}

return $ret;

}

}

ModStart::script($this->script);

switch ($this->renderMode) {

case FieldRenderMode::FORM:

return View::make($this->view(), $variables)->render();

case FieldRenderMode::DETAIL:

if (view()->exists($view = $this->view($this->renderMode))) {

return View::make($view, $variables)->render();

}

return View::make($this->view($this->renderMode, 'text'), $variables)->render();

case FieldRenderMode::GRID:

if (view()->exists($view = $this->view($this->renderMode))) {

// echo json_encode($this->variables())."\n";

$variables = $this->transformVariables($variables, [

'item' => $item,

'index' => $index,

]);

return View::make($view, array_merge([

'item' => $item,

'_index' => $index,

], $variables))->render();

}

if (ModelUtil::hasAtttibute($item, $column)) {

if (is_array($item->{$column})) {

return htmlspecialchars(join(', ', $item->{$column}));

}

}

if (str_contains($column, '.')) {

$value = (string)ModelUtil::traverse($item, $column);

// echo $column . ' - ' . json_encode($value) . "\n";

} else {

$value = (string)$item->{$column};

}

return htmlspecialchars($value);

}

} catch (\Throwable $e) {

Log::error('FieldRenderError - ' . $e->getMessage() . ' - ' . $e->getTraceAsString());

return htmlspecialchars('FieldRenderError - ' . $e->getMessage());

}

throw new \Exception('FieldRenderNotExist');

}

public function __call($method, $arguments)

{

if ($this->isFluentAttribute($method)) {

return $this->fluentAttribute($method, $arguments);

}

throw new \Exception('AbstractField __call error : ' . $method);

}

}