<?php

/**
 * Plugin add new form brick "Avatar".
 * User can upload some picture here.
 * @am_plugin_api 6.0
 */
class Am_Plugin_Avatar extends Am_Plugin
{
    const PLUGIN_STATUS = self::STATUS_PRODUCTION;
    const PLUGIN_COMM = self::COMM_COMMERCIAL;
    const PLUGIN_REVISION = '6.3.43';

    const DEFAULT_WIDTH = 80;
    const DEFAULT_HEIGHT = 80;
    const UPLOAD_PREFIX = 'avatar';

    const ALLOWED_MIME_TYPES = ['image/gif', 'image/png', 'image/jpeg', 'image/webp'];

    protected $_configPrefix = 'misc.';

    static function getDbXml()
    {
        return <<<CUT
<schema version="4.0.0">
    <table name="user">
        <field name="avatar" type="int" notnull="0" />
    </table>
    <table name="admin">
        <field name="avatar" type="int" notnull="0" />
    </table>
</schema>
CUT;
    }

    function init()
    {
        parent::init();
        $this->getDi()->uploadTable->defineUsage(self::UPLOAD_PREFIX,
            'user', 'avatar',
            UploadTable::STORE_FIELD, "User Avatar [%login%, %name_f% %name_l%]", '/admin-users?_u_a=edit&_u_id=%user_id%');
    }

    function _initSetupForm(Am_Form_Setup $form)
    {
        $form->addProlog(<<<CUT
<style type="text/css">
<!--
    .am-row:hover .color-pick {
        opacity: 1;
    }
    .color-pick {
        opacity: 0;
        display: inline-block;
        vertical-align: middle;
        cursor: pointer;
        width: 1em;
        height: 1em;
        border-radius: 50%;
        transition: transform .3s, opacity .3s;
    }
    .color-pick:hover {
        transform: scale(1.8);
    }
-->
</style>
CUT
        );

        $group = $form->addGroup('')
            ->setLabel(___("Avatar Size\n" .
                'width×height'));

        $group->addText('width', ['size'=>4])
            ->setValue(self::DEFAULT_WIDTH);
        $group->addStatic('')->setContent(' &times; ');
        $group->addText('height', ['size'=>4])
            ->setValue(self::DEFAULT_HEIGHT);

        $form->addSelect("resize_type")
            ->loadOptions([
                Am_Image::RESIZE_CROP => 'Crop',
                Am_Image::RESIZE_GIZMO => 'Gizmo',
                Am_Image::RESIZE_FITWIDTH => 'Fit Width',
                Am_Image::RESIZE_FITHEIGHT => 'Fit Height',
                Am_Image::RESIZE_FIT => 'Fit Auto',
            ])
            ->setLabel(___('Resize Type'));

        $form->addAdvRadio('bg')
            ->setLabel(___('Background'))
            ->loadOptions([
                'color' => ___('Color'),
                'transparent' => ___('Transparent')
            ]);

        $form->setDefault('bg', 'color');
        $form->setDefault('resize_type', Am_Image::RESIZE_CROP);

        $this->addElementColor($form, 'fill_color');

        $form->addUpload('default', null, ['prefix' => self::UPLOAD_PREFIX])
            ->setLabel(___('Default Avatar'));

        $form->addMagicSelect('mime_types', ['class' => 'props'])
            ->setLabel(___("Allowed MIME types\nkeep empty if there is not any restrictions"))
            ->loadOptions(array_combine(self::ALLOWED_MIME_TYPES, self::ALLOWED_MIME_TYPES));

        $form->addAdvCheckbox('rpl_block')
            ->setLabel(___('Switch default identity block with block with avatar'));

        $form->addScript()
            ->setScript(<<<CUT
jQuery(function(){
    jQuery('[name$=bg]').change(function(){
        jQuery('[name$=fill_color]').closest('.row, .am-row').toggle(jQuery('[name$=bg]:checked').val() == 'color');
    }).change();
});
jQuery(document).on('click', '.color-pick', function(){
    $(this).closest('.am-row').find('input').val($(this).data('color')).change();
});
jQuery(function(){
    function hexToRgb(hex) {
       var result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex);
       return result ? {
           r: parseInt(result[1], 16),
           g: parseInt(result[2], 16),
           b: parseInt(result[3], 16)
       } : null;
    }

    $('.color-input').change(function(){
        var tColor = 'inherit';

        if ((c = hexToRgb($(this).val())) &&
            (1 - (0.299 * c.r + 0.587 * c.g + 0.114 * c.b) / 255 > 0.5)) {
            tColor = '#fff';
        }
        $(this).css({background: $(this).val(), color: tColor, border: 'none'});
    }).change();
});
CUT
        );
    }

    protected function addElementColor($form, $name)
    {
        $gr = $form->addGroup()
            ->setLabel(___('Background Color'));
        $gr->setSeparator(' ');

        $attr = ['size' => 7, 'placeholder' => '#cccccc', 'class' => 'color-input'];

        $gr->addText($name, $attr);

        foreach ([
            '#f1f5f9', '#dee7ec', '#cccccc', '#ffebcd', '#ff8a80',
            '#ea80fc', '#d1c4e9', '#e3f2fd', '#bbdefb', '#0079d1', '#b2dfdb',
            '#e6ee9c', '#c8e6c9', '#4caf50', '#bcaaa4', '#212121', '#263238'
                 ] as $color) {
            $gr->addHtml()
                ->setHtml("<div class='color-pick' style='background:{$color}' data-color='$color'></div>");
        }
    }

    protected function color($c)
    {
        if (preg_match('/^#([0-9a-fA-F]{6})$/', trim($c), $regs))
        {
            return hexdec($regs[1]);
        } else {
            return Am_Image::FILL_COLOR;
        }
    }

    function directAction(Am_Mvc_Request $request, Am_Mvc_Response $response, array $invokeArgs)
    {
        switch ($request->getActionName()) {
            case 'u' :
                if (!$user = $this->getDi()->userTable->findFirstByLogin($request->getParam('login'))) {
                    throw new Am_Exception_NotFound;
                }
                $id = $user->avatar ?: $this->getConfig('default');
                break;
            default:
                $id = $request->getActionName(); //actually it is upload_id
                $id = ($id == 'index') ? $this->getConfig('default') : $id;
        }
        $this->sendAvatar($id);
    }

    function sendAvatar($id)
    {
        while (@ob_end_clean());
        $this->getDi()->session->writeClose();

        $height = $this->getConfig('height', self::DEFAULT_HEIGHT);
        $width = $this->getConfig('width', self::DEFAULT_WIDTH);

        if ($id) {
            /* @var $upload Upload */
            $upload = $this->getDi()->uploadTable->load($id);
            if ($upload->prefix != self::UPLOAD_PREFIX)
                throw new Am_Exception_InputError(sprintf('Incorrect prefix requested [%s]', $upload->prefix));
            $cachename = floor($id / 100) . '/' . $id;
            $fullpath = $upload->getFullPath();
            $type = $upload->getType();
        } else {
            $cachename = 'default';
            $fullpath = $this->getDi()->view->_scriptPath('img', 'default-avatar.png');
            $type = 'image/png';
        }

        $ext = $this->getConfig('bg', 'color') == 'color' ? '.jpeg' : '.png';
        $mime = $this->getConfig('bg', 'color') == 'color' ? 'image/jpeg' : 'image/png';

        $filename = $this->getDi()->upload_dir . '/avatar/' . $width . '_' . $height . '/' . $cachename . $ext;

        if (!file_exists($filename)) {
            if (!is_dir(dirname($filename))) {
                if (!mkdir(dirname($filename), 0777, true)) {
                    throw new Am_Exception_InternalError("Can not create directory for avatar");
                }
            }

            $image = new Am_Image($fullpath, $type);
            $image->resize(
                $width, $height, $this->getConfig('resize_type', Am_Image::RESIZE_CROP),
                $this->getConfig('bg', 'color') == 'color' ? $this->color($this->getConfig('fill_color')) : Am_Image::FILL_TRANSPARENT)
                ->save($filename, $mime);
        }

        header("Content-Type: {$mime}");
        readfile($filename);
        exit;
    }

    function onGridUserInitGrid(Am_Event_Grid $e)
    {
        /* @var $grid Am_Grid_Editable */
        $grid = $e->getGrid();

        /* @var $customize Am_Grid_Action_Customize */
        $customize = $grid->actionGet('customize');
        $customize->addField(new Am_Grid_Field('avatar', ___('Avatar'), true, null, [$this, 'renderAvatar'], '1%'));
    }

    function renderAvatar(User $record, $field, $grid)
    {
        return sprintf('<td><div style="margin:0 auto; width:40px; height:40px; border-radius:50%%; overflow: hidden; box-shadow: 0 2px 4px #d0cfce;"><img src="%s" height="40px" width="40px"/></div></td>', $this->getDi()->url('misc/avatar/' . $record->avatar));
    }

    function onGetUploadPrefixList(Am_Event $e)
    {
        $e->addReturn([
            Am_Upload_Acl::IDENTITY_TYPE_ADMIN => Am_Upload_Acl::ACCESS_ALL,
            Am_Upload_Acl::IDENTITY_TYPE_USER => Am_Upload_Acl::ACCESS_ALL,
            Am_Upload_Acl::IDENTITY_TYPE_ANONYMOUS => Am_Upload_Acl::ACCESS_ALL
        ], self::UPLOAD_PREFIX);
    }

    function onGridAdminInitForm(Am_Event $event)
    {
        $form = $event->getGrid()->getForm();
        $fs = $form->getElementById('qfauto-0');
        $upload = new Am_Form_Element_Upload('avatar', null, ['prefix' => self::UPLOAD_PREFIX]);
        [$_] = $fs->getElementsByName('login');
        $fs->insertBefore($upload, $_);
        $upload->setLabel(___('Avatar'))
            ->setAllowedMimeTypes($this->getConfig('mime_types', self::ALLOWED_MIME_TYPES))
            ->setJsOptions(<<<CUT
{
   onFileDraw: function(info) {
     var \$div = jQuery('<div class="am-avatar-preview"><img src="' + escape(amUrl('/misc/avatar/' + info.upload_id)) + '" /></div>');
     jQuery(this).closest('div').prepend(\$div);
     this.data('avatar-preview-container', \$div);
   },
   onChange: function(count) {
      var avatar;
      if (count == 0 && (avatar = this.data('avatar-preview-container'))) {
        avatar.remove();
        this.data('avatar-preview-container', false);
      }

   }
}
CUT
        );
    }

    function onGridUserInitForm(Am_Event $event)
    {
        $event->getGrid()->getForm()->addUpload('avatar', null, ['prefix' => self::UPLOAD_PREFIX])
            ->setLabel(___('Avatar'))
            ->setAllowedMimeTypes($this->getConfig('mime_types', self::ALLOWED_MIME_TYPES))
            ->setJsOptions(<<<CUT
{
   fileBrowser:false,
   onFileDraw: function(info) {
     var \$div = jQuery('<div class="am-avatar-preview"><img src="' + escape(amUrl('/misc/avatar/' + info.upload_id)) + '" /></div>');
     jQuery(this).closest('div').prepend(\$div);
     this.data('avatar-preview-container', \$div);
   },
   onChange: function(count) {
      var avatar;
      if (count == 0 && (avatar = this.data('avatar-preview-container'))) {
        avatar.remove();
        this.data('avatar-preview-container', false);
      }

   }
}
CUT
                );
    }

    function onGridUserAfterSave(Am_Event $e)
    {
        $user = $e->getGrid()->getRecord();
        if ($user->avatar) {
            $this->getDi()->db->query(<<<CUT
                UPDATE ?_upload
                    SET user_id = ?
                    WHERE user_id IS NULL
                        AND admin_id = ?
                        AND upload_id = ?;
CUT
                , $user->pk(), $this->getDi()->authAdmin->getUserId(), $user->avatar);
        }

    }

    function onUserAfterInsert(Am_Event $e)
    {
        $user = $e->getUser();
        if ($user->avatar) {
            $this->getDi()->db->query(<<<CUT
                UPDATE ?_upload
                    SET user_id = ?,
                        session_id = NULL
                    WHERE user_id IS NULL
                        AND upload_id = ?;
CUT
                , $user->pk(), $user->avatar);
        }
    }

    function onInitFinished(Am_Event $e)
    {
        $this->getDi()->front->getRouter()->addRoute("misc-{$this->getId()}-user",
            new Am_Mvc_Router_Route("/misc/{$this->getId()}/u/:login",
                    [
                        'module' => 'default',
                        'controller' => 'direct',
                        'plugin_id' => $this->getId(),
                        'type' => 'misc',
                        'action' => 'u'
                    ]
                ));
    }

    function onInitBlocks(Am_Event $e)
    {
        if ($this->getConfig('rpl_block')) {
            $e->getBlocks()->remove('member-identity');
            $e->getBlocks()->add('member/identity', new Am_Block_Base(null, 'member-identity-avatar', null, function(Am_View $v){
                $login = Am_Html::escape($v->di->user->login);
                $url = $this->getDi()->url('logout');
                $url_label = Am_Html::escape(___('Logout'));
                $avatar_url = $this->getDi()->url('misc/avatar/' . $v->di->user->avatar);
                return <<<CUT
<div class="am-user-identity-block-avatar">
    <div class="am-user-identity-block-avatar-pic">
        <img src="$avatar_url" />
    </div>
    <span class="am-user-identity-block_login">$login</span> <a href="$url">$url_label</a>
</div>
CUT;
            }));
        }
    }

    function onDeletePersonalData(Am_Event $e)
    {
        $user = $e->getUser();
        if ($user->avatar) {
            $height = $this->getConfig('height', self::DEFAULT_HEIGHT);
            $width = $this->getConfig('width', self::DEFAULT_WIDTH);

            $upload = $this->getDi()->uploadTable->load($user->avatar);
            $upload->delete();

            $cachename = floor($user->avatar / 100) . '/' . $user->avatar;
            $fullpath = $upload->getFullPath();
            $type = $upload->getType();

            $filename = $this->getDi()->upload_dir . '/avatar/' . $width . '_' . $height . '/' . $cachename . '.jpeg';

            if(is_file($filename)){
                unlink($filename);
            }
            $user->avatar = null;
            $user->save();
        }
    }
}

Am_Di::getInstance()->hook->add(Am_Event::LOAD_BRICKS, function(Am_Event $e) {

    class Am_Form_Brick_Avatar extends Am_Form_Brick
    {
        protected $labels = [
            "Avatar\nwill be resized to %dx%d. PNG, JPG and GIF formats is allowed",
            'Avatar is required',
        ];

        protected $hideIfLoggedInPossible = self::HIDE_DESIRED;

        public function __construct($id = null, $config = null)
        {
            $this->name = ___('Avatar');
            parent::__construct($id, $config);
        }

        function initConfigForm(Am_Form $form)
        {
            $form->addAdvCheckbox('required')
                ->setLabel(___('Required'));
        }

        public function insertBrick(HTML_QuickForm2_Container $form)
        {
            $plugin = Am_Di::getInstance()->plugins_misc->loadGet('avatar');

            $el = $form->addUpload('avatar', null, ['prefix' => Am_Plugin_Avatar::UPLOAD_PREFIX])
                ->setLabel($this->___("Avatar\nwill be resized to %dx%d. PNG, JPG and GIF formats is allowed",
                        $plugin->getConfig('width', Am_Plugin_Avatar::DEFAULT_WIDTH),
                        $plugin->getConfig('height', Am_Plugin_Avatar::DEFAULT_HEIGHT)))
                ->setAllowedMimeTypes($plugin->getConfig('mime_types', Am_Plugin_Avatar::ALLOWED_MIME_TYPES))
                ->setJsOptions(<<<CUT
{
   fileBrowser:false,
   onFileDraw: function(info) {
     var \$div = jQuery('<div class="am-avatar-preview"><img src="' + escape(amUrl('/misc/avatar/' + info.upload_id)) + '" /></div>');
     jQuery(this).closest('div').prepend(\$div);
     this.data('avatar-preview-container', \$div);
   },
   onChange: function(count) {
      var avatar;
      if (count == 0 && (avatar = this.data('avatar-preview-container'))) {
        avatar.remove();
        this.data('avatar-preview-container', false);
      }

   },
   urlUpload : '/upload/upload',
   urlGet : '/upload/get'
}
CUT
                    );
            if ($this->getConfig('required')) {
                $el->addRule('required', $this->___('Avatar is required'));
            }
        }
    }

});