76 lines
1.4 KiB
Go
76 lines
1.4 KiB
Go
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package drawimg
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import (
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"context"
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"go-common/app/interface/main/creative/conf"
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"go-common/library/log"
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"os"
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"strconv"
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"time"
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)
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// Dao define
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type Dao struct {
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// conf
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c *conf.Config
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// watermark
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dw *DrawImg
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}
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// New init dao
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func New(c *conf.Config) (d *Dao) {
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if !isExist(c.WaterMark.FontFile) {
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log.Error("font file not exist")
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return
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}
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if !isExist(c.WaterMark.UnameMark) {
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log.Error("uname image file not exist")
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return
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}
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if !isExist(c.WaterMark.UIDMark) {
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log.Error("uid image file not exist")
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return
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}
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d = &Dao{
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c: c,
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dw: NewDrawImg(c.WaterMark.FontFile, c.WaterMark.FontSize),
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}
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return
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}
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// Make create watermark.
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func (d *Dao) Make(c context.Context, mid int64, text string, isUname bool) (dw *DrawImg, err error) {
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var src string
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if isUname {
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src = d.c.WaterMark.UnameMark
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} else {
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src = d.c.WaterMark.UIDMark
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}
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img, err := d.dw.ReadSrcImg(src)
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if err != nil {
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return
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}
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if img == nil {
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return
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}
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d.dw.srcImg = img
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midStr := strconv.FormatInt(mid, 10)
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timestamp := strconv.FormatInt(time.Now().Unix(), 10)
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file := d.c.WaterMark.SaveImg + midStr + "-" + timestamp + ".png"
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if err = d.dw.Draw(text, file, isUname); err != nil {
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log.Error("d.dw.Draw error(%v)", err)
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return
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}
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dw = &DrawImg{
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CanvasWidth: d.dw.CanvasWidth,
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CanvasHeight: d.dw.CanvasHeight,
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File: file,
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}
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return
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}
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func isExist(path string) bool {
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_, err := os.Stat(path)
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return err == nil || os.IsExist(err)
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}
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