huahuibao/common/components/PosterUtil.php

<?php

namespace common\components;

/**
 * 散客分享海报（OSS 图片水印合成）
 */
class PosterUtil
{
    const BASE_TEMPLATE = 'poster/1234.jpg';

    const FONT = 'd3F5LW1pY3JvaGVp';

    /**
     * 海报标题过长时截断，避免压住底部文案区
     */
    public static function truncateText($text, $maxLen = 14)
    {
        $text = trim((string)$text);
        if ($text === '') {
            return '';
        }
        if (mb_strlen($text, 'UTF-8') > $maxLen) {
            return mb_substr($text, 0, $maxLen, 'UTF-8') . '…';
        }
        return $text;
    }

    /**
     * 和炫鲜花等门店角标
     */
    public static function buildHyxhLogoWatermark($mainId)
    {
        if (!in_array((int)$mainId, [52, 1459, 13495], true)) {
            return '';
        }
        $logo = 'poster/hyxh_ncd_logo.png?x-oss-process=image/resize,m_fill,h_72,w_72';
        if ($mainId == 1459) {
            $logo = 'poster/hyxh_gcd_logo.png?x-oss-process=image/resize,m_fill,h_72,w_72';
        }
        if ($mainId == 13495) {
            $logo = 'poster/hyxh_hzd_logo.png?x-oss-process=image/resize,m_fill,h_72,w_72';
        }
        return stringUtil::ossBase64($logo);
    }

    /**
     * 花束海报：主图 m_lfit 保留完整花束，底部价格/标题/扫码区层次更清晰
     */
    public static function buildMallGoodsPosterUrl($prefix, array $options)
    {
        $cover = $options['cover'] ?? '';
        $miniCode = $options['miniCode'] ?? '';
        $priceText = $options['priceText'] ?? '';
        $name = $options['name'] ?? '';
        $staffText = $options['staffText'] ?? '';
        $mainId = (int)($options['mainId'] ?? 0);
        $flowerNum = (int)($options['flowerNum'] ?? 0);

        $displayName = self::truncateText($name, 14);
        if ($flowerNum > 0 && $displayName !== '') {
            $displayName .= ' · ' . $flowerNum . '支';
        }

        $coverWatermark = $cover . '?x-oss-process=image/resize,m_lfit,h_1020,w_700,limit_0';
        $qrWatermark = $miniCode . '?x-oss-process=image/resize,m_fill,h_220,w_220';

        $url = $prefix . self::BASE_TEMPLATE . '?x-oss-process=image';
        $url .= '/watermark,image_' . stringUtil::ossBase64($coverWatermark) . ',g_north,x_25,y_8';
        $url .= '/watermark,image_' . stringUtil::ossBase64($qrWatermark) . ',g_se,x_36,y_32';

        $logoB64 = self::buildHyxhLogoWatermark($mainId);
        if ($logoB64 !== '') {
            $url .= '/watermark,image_' . $logoB64 . ',g_se,x_210,y_48';
        }

        $url .= '/watermark,text_' . stringUtil::ossBase64($priceText) . ',g_sw,x_24,y_32,color_EE2C2C,type_' . self::FONT . ',size_56';
        $url .= '/watermark,text_' . stringUtil::ossBase64($displayName) . ',g_sw,x_24,y_102,color_333333,type_' . self::FONT . ',size_36';
        $url .= '/watermark,text_' . stringUtil::ossBase64($staffText) . ',g_sw,x_24,y_148,color_999999,type_' . self::FONT . ',size_26';
        $url .= '/watermark,text_' . stringUtil::ossBase64('微信扫码下单') . ',g_se,x_44,y_292,color_888888,type_' . self::FONT . ',size_24';

        return $url;
    }

    /**
     * 花材海报：方图裁切，保持原有布局
     */
    public static function buildMallItemPosterUrl($prefix, array $options)
    {
        $cover = $options['cover'] ?? '';
        $miniCode = $options['miniCode'] ?? '';
        $priceText = $options['priceText'] ?? '';
        $name = $options['name'] ?? '';
        $staffText = $options['staffText'] ?? '';
        $mainId = (int)($options['mainId'] ?? 0);

        $coverWatermark = $cover . '?x-oss-process=image/resize,m_fill,h_750,w_750';
        $qrWatermark = $miniCode . '?x-oss-process=image/resize,m_fill,h_200,w_200';

        $url = $prefix . self::BASE_TEMPLATE . '?x-oss-process=image';
        $url .= '/watermark,image_' . stringUtil::ossBase64($coverWatermark) . ',g_nw,x_0,y_0';
        $url .= '/watermark,image_' . stringUtil::ossBase64($qrWatermark) . ',g_se';

        $logoB64 = self::buildHyxhLogoWatermark($mainId);
        if ($logoB64 !== '') {
            $url .= '/watermark,image_' . $logoB64 . ',g_se,x_65,y_65';
        }

        $url .= '/watermark,text_' . stringUtil::ossBase64($staffText) . ',g_sw,x_18,y_235,color_8B8989,type_' . self::FONT . ',size_30';
        $url .= '/watermark,text_' . stringUtil::ossBase64(self::truncateText($name, 16)) . ',g_sw,x_18,y_145';
        $url .= '/watermark,text_' . stringUtil::ossBase64($priceText) . ',g_sw,x_18,y_50,color_EE2C2C,type_' . self::FONT . ',size_50';

        return $url;
    }
}