164 lines
4.7 KiB
Go
164 lines
4.7 KiB
Go
package main
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import (
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"bytes"
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"embed"
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"flag"
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"fmt"
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"html/template"
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"io/fs"
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"log"
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"net/http"
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"os"
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"sort"
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"strconv"
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"toolbox/pkg/base"
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_ "toolbox/pkg/football"
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_ "toolbox/pkg/learnnumber"
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_ "toolbox/pkg/zitie" // 匿名导入以触发 init()
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"github.com/gin-gonic/gin"
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)
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//go:embed web/*
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var webFS embed.FS
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func main() {
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portFlag := flag.Int("port", 0, "端口号 (优先于环境变量 PORT)")
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gaFlag := flag.String("ga", "", "Google Analytics ID")
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flag.Parse()
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gaID := *gaFlag
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if gaID == "" {
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gaID = os.Getenv("GA_ID")
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}
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if os.Getenv("GIN_MODE") == "release" {
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gin.SetMode(gin.ReleaseMode)
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}
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r := gin.New()
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r.Use(gin.Logger(), gin.Recovery())
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r.RedirectTrailingSlash = false
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r.RedirectFixedPath = false
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_ = r.SetTrustedProxies(nil)
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// 1. 自动发现并注册工具路由
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api := r.Group("/api")
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{
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for id, tool := range base.Registry {
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if err := tool.Init(); err != nil {
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log.Fatalf("Failed to initialize tool %s: %v", id, err)
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}
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tool.RegisterRoutes(api.Group("/" + id))
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}
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}
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// 2. 静态资源
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subFS, _ := fs.Sub(webFS, "web")
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r.StaticFS("/static", http.FS(subFS))
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// 2.5 SEO 静态文件映射
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r.GET("/robots.txt", func(c *gin.Context) {
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c.String(http.StatusOK, "User-agent: *\nAllow: /\nSitemap: https://toolbox.pengzhan.dev/sitemap.xml\n")
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})
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r.GET("/sitemap.xml", func(c *gin.Context) {
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var buf bytes.Buffer
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buf.WriteString("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n")
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buf.WriteString("<urlset xmlns=\"http://www.sitemaps.org/schemas/sitemap/0.9\">\n")
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buf.WriteString(" <url><loc>https://toolbox.pengzhan.dev/</loc><priority>1.0</priority></url>\n")
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// 动态根据注册的工具生成路由
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for id := range base.Registry {
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fmt.Fprintf(&buf, " <url><loc>https://toolbox.pengzhan.dev/%s</loc><priority>0.8</priority></url>\n", id)
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}
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buf.WriteString("</urlset>")
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c.Data(http.StatusOK, "application/xml; charset=utf-8", buf.Bytes())
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})
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// 3. 模板引擎初始化
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// 递归加载 web 目录下所有的 .html 文件
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tmpl, err := template.ParseFS(subFS, "layout.html", "index.html", "tools/*.html")
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if err != nil {
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log.Fatalf("Failed to parse templates: %v", err)
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}
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// 通用页面渲染函数
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serveIndex := func(c *gin.Context) {
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path := c.Request.URL.Path
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title := "探索工具箱"
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desc := "基于 Go 语言构建的模块化个人工具箱，提供汉字字帖生成、数字学习等多种实用生产力工具。"
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keywords := "个人工具箱, 汉字字帖生成, 书法练习, 数字学习, Own-Tools"
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baseURL := "https://toolbox.pengzhan.dev"
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canonical := baseURL + path
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// 针对不同路径设置 SEO 标签
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switch path {
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case "/zitie":
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title = "汉字字帖生成器 - 教学方格与步进式分解"
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desc = "在线生成 2x3 教学方格字帖和 9 列步进式笔顺分解字帖，支持多种书法字体和古风排版。"
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keywords = "字帖生成, 笔顺分解, 汉字教学, 书法字帖, 练字"
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case "/learn-number":
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title = "趣味数字学习工具"
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desc = "为儿童设计的数字学习与计数练习工具，生动活泼，寓教于乐。"
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keywords = "数字学习, 儿童计数, 幼小衔接"
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case "/football":
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title = "2026世界杯小组出线模拟器 - 蒙特卡洛预测"
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desc = "使用蒙特卡洛算法模拟2026年美加墨世界杯小组赛出线概率，支持自定义比赛概率、小组球队及已有赛果。"
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keywords = "2026世界杯, 小组出线概率, 蒙特卡洛模拟, 足球预测"
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}
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data := gin.H{
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"Title": title,
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"Description": desc,
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"Keywords": keywords,
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"CanonicalURL": canonical,
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"GA_ID": gaID,
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}
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var buf bytes.Buffer
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// 因为已经 Sub 了，模板名就是文件名
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if err := tmpl.ExecuteTemplate(&buf, "layout.html", data); err != nil {
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c.String(http.StatusInternalServerError, "Template error: %v", err)
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return
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}
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c.Data(http.StatusOK, "text/html; charset=utf-8", buf.Bytes())
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}
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r.GET("/", serveIndex)
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r.GET("/api/tools", func(c *gin.Context) {
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var list []map[string]string
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ids := make([]string, 0, len(base.Registry))
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for id := range base.Registry {
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ids = append(ids, id)
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}
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sort.Strings(ids)
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for _, id := range ids {
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t := base.Registry[id]
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list = append(list, map[string]string{
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"id": t.ID(),
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"name": t.Name(),
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"desc": t.Description(),
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"emoji": t.Emoji(),
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})
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}
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c.JSON(http.StatusOK, list)
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})
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// 4. 全路径回退 (SPA Routing)
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r.NoRoute(serveIndex)
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// 5. 启动
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var finalPort string
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if *portFlag > 0 {
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finalPort = strconv.Itoa(*portFlag)
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} else if envPort := os.Getenv("PORT"); envPort != "" {
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finalPort = envPort
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} else {
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finalPort = "8080"
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}
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log.Printf("Toolbox server starting on :%s", finalPort)
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if err := r.Run(":" + finalPort); err != nil {
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log.Fatalf("Server failed: %v", err)
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}
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}
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