package govue

import (
	"fmt"
	"git.ouxuan.net/3136352472/go-service-template/jsruntime"
	"git.ouxuan.net/3136352472/go-service-template/pool"
	"git.ouxuan.net/hasaki-service/hasaki-sdk/hskutils"
	"io/ioutil"
	"net/http"
	"os"
	"path/filepath"
)

type GoVue struct {
	StaticPath    string
	UseJsPath     string
	jsRuntimePool *pool.JsRuntimePool
}

func NewGoVueDefaultConfig() (gv *GoVue, err error) {
	gv = &GoVue{}
	err = gv.initRender()
	return
}

func NewGoVue(staticPath, useJsPath string) (gv *GoVue, err error) {
	gv = &GoVue{
		StaticPath: staticPath,
		UseJsPath:  useJsPath,
	}
	err = gv.initRender()
	return
}

func (gv *GoVue) initRender() (err error) {
	mainFile := filepath.Join(hskutils.GetSelfFilePath(), "govue-runtime", "runtime.js")
	var useFileName string
	if gv.UseJsPath == "" {
		useFileName = filepath.Join(hskutils.GetSelfFilePath(), "static", "use.js")
	} else {
		useFileName = gv.UseJsPath
	}
	gv.jsRuntimePool = pool.NewJsRuntimePool(mainFile, useFileName, jsruntime.Relys{
		jsruntime.Rely{
			FileName: filepath.Join("govue-runtime", "header.js"),
		},
		jsruntime.Rely{
			FileName: filepath.Join("govue-runtime", "request.js"),
		},
		//jsruntime.Rely{
		//	FileName: filepath.Join("govue-runtime", "govue.js"),
		//},
		jsruntime.Rely{
			FileName: filepath.Join("govue-js-src", "dist", "index.js"),
		},
	}, jsruntime.ModeSync)
	return
}

func (gv *GoVue) LoadStaticResources(request *http.Request) (result []byte, err error) {
	var path string
	var staticDir string
	var filePath = request.URL.Path
	if gv.StaticPath == "" {
		staticDir = filepath.Join(hskutils.GetSelfFilePath(), "static")
	} else {
		staticDir = gv.StaticPath
	}

	path = filepath.Join(staticDir, filePath)

	fi, err := os.Stat(path)
	if err != nil {
		return
	} else if fi.IsDir() {
		filePath = filepath.Join(filePath, "index.html")
		path = filepath.Join(staticDir, filePath)
	}

	result, err = ioutil.ReadFile(path)
	if !hskutils.PathExists(path) || err != nil {
		return
	}
	if filepath.Ext(path) != ".html" {
		return
	}

	err = gv.jsRuntimePool.JsRuntimeCall(func(jr *jsruntime.JsRuntime) {
		err = jr.Render(filePath, fmt.Sprintf("http://%s%s", request.Host, request.RequestURI), string(result), func(data string) {
			result = []byte(data)
		})
	})
	gv.jsRuntimePool.Log()
	return
}