package web

import (
	"embed"
	"io/fs"
	"net/http"

	"github.com/gin-gonic/gin"
	"github.com/infraboard/mcube/v2/ioc"
	ioc_gin "github.com/infraboard/mcube/v2/ioc/config/gin"
)

func init() {
	ioc.Config().Registry(&Web{})
}

// 把当前的dist文件 作为静态资源 加载到Gin

type Web struct {
	ioc.ObjectImpl
}

func (w *Web) Name() string {
	return "web"
}

//go:embed dist/assets/*
var assetsFs embed.FS

//go:embed dist/index.html
var indexFs embed.FS

func (w Web) Init() error {
	rr := ioc_gin.RootRouter()

	// dist/assets/xxx/xxx -->  /assets/xxx/xxx
	assets, _ := fs.Sub(assetsFs, "dist/assets")

	// /assets/xx.jpg --> dist/assets(root), xx.jpg
	rr.StaticFS("/assets", http.FS(assets))

	// index页面
	rr.GET("", w.Index)

	// 解决刷新404问题, 解决不了刷新 URL重置问题
	rr.NoRoute(w.RedirectIndex)
	return nil
}

// RedirectIndex 重定向
//
//	location / {
//		try_files $uri $uri/ /index.html;
//	  }
func (h *Web) RedirectIndex(c *gin.Context) {
	c.Redirect(http.StatusFound, "/")
}

// RedirectIndex 重定向
func (h *Web) Index(c *gin.Context) {
	c.Header("Content-Type", "text/html;charset=utf-8")
	index, err := indexFs.ReadFile("dist/index.html")
	if err != nil {
		panic(err)
	}
	c.String(200, string(index))
}