<?php

namespace app\common\service\business;

use app\common\model\plus\business\Template;
use app\common\service\qrcode\Base;
use Grafika\Color;
use Grafika\Grafika;

/**
 * 生成名片
 * Class Qrcode
 * @package app\common\service
 */
class Poster extends Base
{
    /* @var array $dealer 用户信息 */
    private $dealer;

    /* @var array $config 名片设置 */
    private $config;
    public $template;

    /**
     * 构造方法
     * Poster constructor.
     * @param $dealer
     * @throws \Exception
     */
    public function __construct($dealer)
    {
        parent::__construct();
        // 用户信息
        $this->dealer = $dealer;
        $this->template = (new Template())->detail($dealer['template_id']);
        // 名片设置
        $this->config = json_decode($this->template['style'], true);
    }

    /**
     * 获取用户名片
     * @return string
     * @throws \app\common\exception\BaseException
     * @throws \think\exception\DbException
     * @throws \Exception
     */
    public function getImage($isType = true)
    {
        if (file_exists($this->getPosterPath('business')) && $isType) {
            return $this->getPosterUrl('business');
        }
        // 小程序id
        $appId = $this->dealer['app_id'];
        // 1. 下载背景图
        $backdrop = $this->saveTempImage($appId, $this->config['backdrop']['src'], 'backdrop');
        if ($this->dealer['file_path']) {
            // 2. 下载用户头像
            $avatarUrl = $this->saveTempImage($appId, $this->dealer['file_path'], 'avatar');
        } else {
            // 2. 下载用户头像
            $avatarUrl = $this->saveTempImage($appId, $this->dealer['user']['avatarUrl'], 'avatar');
        }
        $logo = '';
        if ($this->dealer['logoImage']['file_path']) {
            // 2. 下载logo
            $logo = $this->saveTempImage($appId, $this->dealer['logoImage']['file_path'], 'logo');
        }
        // 4. 拼接名片
        return $this->savePoster($backdrop, $avatarUrl, 'business', $logo);
    }

    /**
     * 名片图文件路径
     * @return string
     */
    private function getPosterPath($name)
    {
        // 保存路径
        $tempPath = $_SERVER['DOCUMENT_ROOT']. '/temp/'.$this->template['app_id'] . '/'.$name.'/';
        !is_dir($tempPath) && mkdir($tempPath, 0755, true);
        return $tempPath . $this->getPosterName();
    }

    /**
     * 名片文件名称
     * @return string
     */
    private function getPosterName()
    {
        return md5('poster_' . $this->dealer['business_card_id']) . '.png';
    }

    /**
     * 名片url
     * @return string
     */
    private function getPosterUrl($name)
    {
        return base_url() . '/temp/' . $this->template['app_id'] . '/' .$name . '/' . $this->getPosterName() . '?t=' . time();
    }

    /**
     * 拼接名片
     * @param $backdrop
     * @param $avatarUrl
     * @param $imageUrl
     * @param $logo
     * @return string
     * @throws \Exception
     */
    private function savePoster($backdrop, $avatarUrl, $imageUrl, $logo)
    {

        // 创建画布
        list($width, $height) = getimagesize($backdrop);
        $newImage = imagecreatetruecolor($width, $height);
        $backdropIm = $this->imagEcr($backdrop);
        imageantialias($newImage, true);
        // 将第一张图片覆盖在新图像上
        imagecopy($newImage, $backdropIm, 0, 0, 0, 0, $width, $height);
        if (!empty($this->config['icon'])) {
            foreach ($this->config['icon'] as $key => $value) {
                $this->addImagecopy($newImage, $value);
            }
        }

        // 写入地址
        //$this->addText($newImage, 'address', '地址：', 0, false, $width);
        if ($this->config['avatar']['display'] == 1) {
            // 生成圆形用户头像
            $this->config['avatar']['style'] === 'circle' && $this->circular($avatarUrl, $avatarUrl);
            // 重设用户头像宽高
            $avatarWidth = $this->config['avatar']['width'];
            //重设图片大小
            $this->resizeExact($avatarUrl,$avatarWidth,$avatarWidth);
            // 用户头像添加到背景图
            $avatarX = $this->config['avatar']['left'];
            $avatarY = $this->config['avatar']['top'];
            // 打开用户头像
            $avatarIm = $this->imagEcr($avatarUrl);
            imagecopy($newImage, $avatarIm, $avatarX, $avatarY, 0, 0, $avatarWidth, $avatarWidth);
        }
        if (is_file($logo) && $this->config['logo']['display'] == 1) {
            // 生成圆形logo
            $this->config['logo']['style'] === 'circle' && $this->circular($logo, $logo);
            //调整后大小
            $logoWidth = round($this->config['logo']['width']);
            $logoHeight = round($this->config['logo']['height']);
            //重设图片大小
            $this->resizeExact($logo,$logoWidth,$logoHeight);
            // 用户logo添加到背景图
            $logoX = $this->config['logo']['left'];
            $logoY = $this->config['logo']['top'];
            // 打开用户logo
            $logoImage = $this->imagEcr($logo);
            imagecopy($newImage, $logoImage, $logoX, $logoY, 0, 0, $logoWidth, $logoHeight);
        }

        // 写入用户昵称
        $this->addText($newImage, 'name');
        foreach ($this->dealer['unit'] as $key => $value) {
            // 写入公司
            $this->addText($newImage, 'unit', '', $key, true);
        }
        foreach ($this->dealer['address'] as $key => $value) {
            // 写入地址
            $this->addText($newImage, 'address', '', $key, true);
        }
        foreach ($this->dealer['duties'] as $key => $value) {
            // 写入职务
            $this->addText($newImage, 'duties', '', $key, true);
        }
        // 写入职位
        //$this->addText($newImage, 'duties');
        if (!empty($this->dealer['position']) && !empty($this->config['position'])) {
            foreach ($this->dealer['position'] as $key => $value) {
                // 写入公司
                $this->addText($newImage, 'position', '', $key, true);
            }
        }
        // 写入手机号
        $this->addText($newImage, 'mobile', '手机：');

        // 写入微信
        if ($this->dealer['mailbox']) {
            // 写入邮箱
            $this->addText($newImage, 'mailbox', '邮箱：');
        }
        if ($this->dealer['phone']) {
            $this->addText($newImage, 'phone', '电话：');
        }
        // 保存图片
        imagejpeg($newImage, $this->getPosterPath($imageUrl),100); // 根据需要选择合适的函数（如imagepng、imagegif等）
        // 清理内存
        imagedestroy($newImage);
        return $this->getPosterUrl($imageUrl);
    }

    /**
     * 打开图片
     * @param $image
     * @return false|resource
     */
    public function imagEcr($image)
    {
        // 创建画布
        return imagecreatefromstring(file_get_contents($image));
    }

    /**
     * 重设图片大小
     * @param $image
     * @param $newWidth
     * @param $newHeight
     * @return void
     */
    public function resizeExact($imageUrl, $newWidth, $newHeight )
    {
        $image=imagecreatefromstring(file_get_contents($imageUrl));
        // 调整图片大小
        $targetImage = imagecreatetruecolor($newWidth, $newHeight);
        imageantialias($targetImage, true);
        //获取图片大小
        $width = imagesx($image);
        $height = imagesy($image);
        // 这一句一定要有
        imagesavealpha($targetImage, true);
        $bg = imagecolorallocatealpha($targetImage, 255, 255, 255, 127);
        imagefill($targetImage, 0, 0, $bg);
        imagecopyresampled($targetImage, $image, 0, 0, 0, 0, $newWidth, $newHeight, $width, $height);
        imagepng($targetImage, $imageUrl,0); // 根据需要选择合适的函数（如imagepng、imagegif等）
        // 清理内存
        imagedestroy($targetImage);
    }

    /**
     * 添加图标
     * @param $newImage
     * @param $data
     * @return void
     */
    public function addImagecopy($newImage,$data){
        $src=$this->saveTempImage($this->template['app_id'], $data['src'], 'icon');
        $this->resizeExact($src,$data['width'], $data['height']);
        $backdropIm = $this->imagEcr($src);
        // 将第一张图片覆盖在新图像上
        imagecopy($newImage, $backdropIm, $data['left'], $data['top'], 0, 0, $data['width'], $data['height']);
    }

    /**
     * 写入文字
     * @param $editor
     * @param $backdropImage
     * @param $name
     * @param $text
     * @param $key
     * @param $type
     * @param $width
     * @return array|bool
     */
    public function addText($editor, $name, $text = '', $key = 0, $type = false, $width = 0)
    {
        $fontPath = $_SERVER['DOCUMENT_ROOT']. '/fonts/MSYH.TTC';
        if ($type) {
            list($fontSize, $fontX,$fontY)  = self::SizeLeftTop($this->config[$name][$key]['fontSize'], $this->config[$name][$key]['left'],$this->config[$name][$key]['top']);
            $colorResource=self::colorResource($this->config[$name][$key]['color'],$editor);
            return imagettftext($editor, $fontSize, 0, $fontX, $fontY, $colorResource, $fontPath, $text . $this->dealer[$name][$key]);
        } else if ($name == 'mobile') {
            list($fontSize, $fontX,$fontY)  = self::SizeLeftTop($this->config[$name]['fontSize'], $this->config[$name]['left'],$this->config[$name]['top']);
            $text = $text . $this->dealer['mobile'];
            if (!empty($this->dealer['mobile_phone'])) {
                $text = $text . ' / ' . $this->dealer['mobile_phone'];
            }
            $colorResource=self::colorResource($this->config[$name]['color'],$editor);
            return imagettftext($editor, $fontSize, 0, $fontX, $fontY, $colorResource, $fontPath, $text);
        }  /*else if ($name == 'duties') {
            list($fontSize, $fontX,$fontY)  = self::SizeLeftTop($this->config[$name][$key]['fontSize'], $this->config[$name][$key]['left'],$this->config[$name][$key]['top']);
            $duties = $this->dealer['duties'][$key];
           if (!empty($this->dealer['duties'][1])) {
                $duties = $duties . ' / ' . $this->dealer['duties'][1];
            }
            if (!empty($this->dealer['duties'][2])) {
                $duties = $duties . ' / ' . $this->dealer['duties'][2];
            }
            $colorResource=self::colorResource($this->config['duties'][$key]['color'],$editor);
            return imagettftext($editor, $fontSize, 0, $fontX, $fontY, $colorResource, $fontPath, $text . $duties);
        }*/ else if ($name == 'address') {
            list($fontSize, $fontX,$fontY)  = self::SizeLeftTop($this->config[$name][$key]['fontSize'], $this->config[$name][$key]['left'],$this->config[$name][$key]['top']);
            $title = $this->dealer['address'][$key];
            $strlen = mb_strlen($title, 'utf-8');
            $left = $width - $this->config['address'][$key]['left'] - $fontSize;
            $titleNum = bcdiv($left, $this->config['address'][$key]['fontSize']);
            $the_box = $this->config['address'][$key]['fontSize'] * 3;
            while ($width < ($titleNum * $this->config['address'][$key]['fontSize'] + $the_box + $fontX)) {
                $titleNum--;
            };
            if ($strlen > $titleNum && $titleNum) {
                $strArr = self::mbStrSplit($title, $titleNum);
            }
            $colorResource=self::colorResource($this->config['address'][$key]['color'],$editor);
            if ($strlen > $titleNum && $titleNum) {
                $y = $fontY + 10;
                foreach ($strArr as $k => $v) {
                    if ($k == 0) {
                        imagettftext($editor, $fontSize, 0, $fontX, $fontY, $colorResource, $fontPath, $text . $v);
                    } else {
                        $y = $y + ($fontSize * $k);
                        imagettftext($editor, $fontSize, 0, $fontX + $the_box, $y, $colorResource, $fontPath, $v);
                    }
                }
                return true;
            } else {
                return imagettftext($editor, $fontSize, 0, $fontX, $fontY, $colorResource, $fontPath, $text . $title);
            }

        } else {
            list($fontSize, $fontX,$fontY)  = self::SizeLeftTop($this->config[$name]['fontSize'], $this->config[$name]['left'],$this->config[$name]['top']);
            $colorResource=self::colorResource($this->config[$name]['color'],$editor);
            return imagettftext($editor, $fontSize, 0, $fontX, $fontY, $colorResource, $fontPath, $text . $this->dealer[$name]); // path/to/font.ttf为自定义字体路径
        }

    }

    /**
     * 分割字符串为数组模式
     * @param $string
     * @param $len
     * @return mixed
     */
    private function mbStrSplit($string, $len = 1)
    {
        $start = 0;
        $strlen = mb_strlen($string);
        while ($strlen) {
            $array[] = mb_substr($string, $start, $len, "utf8");
            $string = mb_substr($string, $len, $strlen, "utf8");
            $strlen = mb_strlen($string);
        }
        return $array;
    }

    /**
     * 生成圆形图片
     * @param static $imgpath 图片地址
     * @param string $saveName 保存文件名，默认空。
     */
    private function circular($imgpath, $saveName = '')
    {
        $srcImg = imagecreatefromstring(file_get_contents($imgpath));
        $w = imagesx($srcImg);
        $h = imagesy($srcImg);
        $w = $h = min($w, $h);
        $newImg = imagecreatetruecolor($w, $h);
        // 这一句一定要有
        imagesavealpha($newImg, true);
        // 拾取一个完全透明的颜色,最后一个参数127为全透明
        $bg = imagecolorallocatealpha($newImg, 255, 255, 255, 127);
        imagefill($newImg, 0, 0, $bg);
        $r = $w / 2; //圆半径
        for ($x = 0; $x < $w; $x++) {
            for ($y = 0; $y < $h; $y++) {
                $rgbColor = imagecolorat($srcImg, $x, $y);
                if (((($x - $r) * ($x - $r) + ($y - $r) * ($y - $r)) < ($r * $r))) {
                    imagesetpixel($newImg, $x, $y, $rgbColor);
                }
            }
        }
        // 输出图片到文件
        imagepng($newImg, $saveName,0);
        // 释放空间
        imagedestroy($srcImg);
        imagedestroy($newImg);
    }

    /**
     * 获取名片模板
     * @return string
     * @throws \app\common\exception\BaseException
     * @throws \think\exception\DbException
     * @throws \Exception
     */
    public function getImageE($config, $template_id = '')
    {
        $model = new Template();
        $this->config = $config;
        // 小程序id
        $appId = $this->template['app_id'];
        // 1. 下载背景图
        $backdrop = $this->saveTempImage($appId, $this->config['backdrop']['src'], 'backdrop');
        // 2. 下载用户头像
        $avatarUrl = $this->saveTempImage($appId, $model::$base_url."/image/agent/avatar.jpg", 'avatar', $template_id);
        // 2. 下载logo
        $logo = $this->saveTempImage($appId, $this->config['logo']['src'], 'logo');
        // 4. 拼接名片
        return $this->savePoster($backdrop, $avatarUrl, 'template', $logo);
    }

    /**
     * 获取颜色
     * @param $color
     * @param $editor
     * @return false|int
     */
    private function colorResource($color, $editor)
    {
        $Color = new Color($color);
        list($r, $g, $b, $alpha) = $Color->getRgba();
        $scale = round(127 * $alpha);
        $invert = 127 - $scale;
        return imagecolorallocatealpha(
            $editor,
            $r, $g, $b,
            $invert
        );
    }

    /**
     *计算字体大小和顶部跟左边的距离
     * @param $fontSize
     * @param $left
     * @param $top
     * @return array
     */
    private function SizeLeftTop($fontSize,$left,$top){
        $data[0] = $fontSize * 0.76;
        $data[1]  = $left;
        $data[2]  = $top + $fontSize;
        return $data;
    }

}