From a332e6204b68288e027787cc52112bc08d6f0d2a Mon Sep 17 00:00:00 2001
From: MaDaLei <madai@netease.com>
Date: Mon, 13 Apr 2026 18:51:35 +0800
Subject: [PATCH] feat: add reportPosterDraw utility

---
 src/utils/reportPosterDraw.js | 173 ++++++++++++++++++++++++++++++++++
 1 file changed, 173 insertions(+)
 create mode 100644 src/utils/reportPosterDraw.js

diff --git a/src/utils/reportPosterDraw.js b/src/utils/reportPosterDraw.js
new file mode 100644
index 0000000..179702c
--- /dev/null
+++ b/src/utils/reportPosterDraw.js
@@ -0,0 +1,173 @@
+/** 洗美报告分享海报绘制（H5 / 小程序 canvas 2d 共用逻辑） */
+
+export const POSTER_W = 750
+export const POSTER_H = 1100
+
+export function roundRect(ctx, x, y, w, h, r) {
+  ctx.beginPath()
+  ctx.moveTo(x + r, y)
+  ctx.lineTo(x + w - r, y)
+  ctx.quadraticCurveTo(x + w, y, x + w, y + r)
+  ctx.lineTo(x + w, y + h - r)
+  ctx.quadraticCurveTo(x + w, y + h, x + w - r, y + h)
+  ctx.lineTo(x + r, y + h)
+  ctx.quadraticCurveTo(x, y + h, x, y + h - r)
+  ctx.lineTo(x, y + r)
+  ctx.quadraticCurveTo(x, y, x + r, y)
+  ctx.closePath()
+}
+
+/**
+ * @param {CanvasRenderingContext2D} ctx
+ * @param {{
+ *   storeName: string
+ *   storePhone: string
+ *   storeAddr: string
+ *   petName: string
+ *   serviceType: string
+ *   timeStr: string
+ *   staffName: string
+ *   remark: string
+ *   beforeImg: any | null
+ *   afterImg: any | null
+ * }} data
+ */
+export function drawReportPoster(ctx, data) {
+  const {
+    storeName,
+    storePhone,
+    storeAddr,
+    petName,
+    serviceType,
+    timeStr,
+    staffName,
+    remark,
+    beforeImg,
+    afterImg
+  } = data
+
+  ctx.fillStyle = '#ffffff'
+  ctx.fillRect(0, 0, POSTER_W, POSTER_H)
+
+  const gradient = ctx.createLinearGradient(0, 0, POSTER_W, 300)
+  gradient.addColorStop(0, '#07c160')
+  gradient.addColorStop(1, '#10b76f')
+  ctx.fillStyle = gradient
+  ctx.fillRect(0, 0, POSTER_W, 300)
+
+  const name = storeName || '宠伴生活馆'
+  ctx.fillStyle = '#ffffff'
+  ctx.font = 'bold 36px sans-serif'
+  ctx.textAlign = 'center'
+  ctx.fillText(name, POSTER_W / 2, 70)
+  ctx.font = '20px sans-serif'
+  ctx.globalAlpha = 0.7
+  ctx.fillText('宠物服务，让爱更专业', POSTER_W / 2, 105)
+  ctx.globalAlpha = 1
+
+  if (storePhone || storeAddr) {
+    ctx.font = '18px sans-serif'
+    ctx.globalAlpha = 0.85
+    const contactLine = [storePhone, storeAddr].filter(Boolean).join('  |  ')
+    ctx.fillText(contactLine, POSTER_W / 2, 138)
+    ctx.globalAlpha = 1
+  }
+
+  ctx.fillStyle = '#333333'
+  ctx.font = 'bold 36px sans-serif'
+  ctx.fillText('服务报告', POSTER_W / 2, 220)
+
+  ctx.fillStyle = '#f8f6f3'
+  ctx.beginPath()
+  roundRect(ctx, 40, 260, 670, 220, 20)
+  ctx.fill()
+
+  const infoItems = [
+    ['宠物名字', petName || '-'],
+    ['服务项目', serviceType || '-'],
+    ['服务时间', timeStr || '-'],
+    ['服务技师', staffName || '-']
+  ]
+  let y = 310
+  ctx.textAlign = 'left'
+  infoItems.forEach(([label, val]) => {
+    ctx.fillStyle = '#999999'
+    ctx.font = '22px sans-serif'
+    ctx.fillText(label, 80, y)
+    ctx.fillStyle = '#333333'
+    ctx.font = 'bold 24px sans-serif'
+    ctx.fillText(String(val), 220, y)
+    y += 48
+  })
+
+  ctx.fillStyle = '#f8f6f3'
+  ctx.beginPath()
+  roundRect(ctx, 40, 500, 670, 360, 20)
+  ctx.fill()
+
+  ctx.fillStyle = '#333333'
+  ctx.font = 'bold 24px sans-serif'
+  ctx.textAlign = 'center'
+  ctx.fillText('服务前后对比', POSTER_W / 2, 545)
+
+  const imgY = 575
+  const imgH = 260
+  const imgW = 300
+
+  ctx.fillStyle = '#e0e0e0'
+  ctx.beginPath()
+  roundRect(ctx, 60, imgY, imgW, imgH, 16)
+  ctx.fill()
+  ctx.fillStyle = '#999999'
+  ctx.font = '20px sans-serif'
+  ctx.fillText('服务前', 210, imgY + imgH / 2)
+
+  ctx.fillStyle = '#e0e0e0'
+  ctx.beginPath()
+  roundRect(ctx, 390, imgY, imgW, imgH, 16)
+  ctx.fill()
+  ctx.fillStyle = '#999999'
+  ctx.fillText('服务后', 540, imgY + imgH / 2)
+
+  if (remark) {
+    ctx.fillStyle = '#f8f6f3'
+    ctx.beginPath()
+    roundRect(ctx, 40, 880, 670, 100, 20)
+    ctx.fill()
+    ctx.fillStyle = '#666666'
+    ctx.font = '22px sans-serif'
+    ctx.textAlign = 'left'
+    if (remark.length > 30) {
+      ctx.fillText(remark.substring(0, 30), 70, 920)
+      ctx.fillText(remark.substring(30), 70, 955)
+    } else {
+      ctx.fillText(remark, 70, 930)
+    }
+  }
+
+  ctx.fillStyle = '#0f172a'
+  ctx.font = '20px sans-serif'
+  ctx.textAlign = 'center'
+  ctx.fillText('长按识别小程序 · 欢迎再次预约', POSTER_W / 2, 1020)
+
+  ctx.fillStyle = '#07c160'
+  ctx.font = 'bold 22px sans-serif'
+  ctx.fillText(`— ${name} —`, POSTER_W / 2, 1055)
+
+  if (beforeImg) {
+    ctx.save()
+    ctx.beginPath()
+    roundRect(ctx, 60, imgY, imgW, imgH, 16)
+    ctx.clip()
+    ctx.drawImage(beforeImg, 60, imgY, imgW, imgH)
+    ctx.restore()
+  }
+  if (afterImg) {
+    ctx.save()
+    ctx.beginPath()
+    roundRect(ctx, 390, imgY, imgW, imgH, 16)
+    ctx.clip()
+    ctx.drawImage(afterImg, 390, imgY, imgW, imgH)
+    ctx.restore()
+  }
+}