package yatwiki3

import (
	"html/template"
	"log"
	"net/http"
)

type WikiServer struct {
	db      *WikiDB
	opts    *ServerOptions
	pageTmp *template.Template
}

func NewWikiServer(opts *ServerOptions) (*WikiServer, error) {
	wdb, err := NewWikiDB(opts.DBFilePath)
	if err != nil {
		return nil, err
	}

	tmpl, err := template.New("yatwiki/page").Parse(pageTemplate)
	if err != nil {
		panic(err)
	}

	ws := WikiServer{
		db:      wdb,
		opts:    opts,
		pageTmp: tmpl,
	}
	return &ws, nil
}

func (this *WikiServer) Close() {
	this.db.Close()
}

func (this *WikiServer) ServeHTTP(w http.ResponseWriter, r *http.Request) {
	w.Header().Set("Server", "Yatwiki3")

	if r.URL.Path == this.opts.ExpectBaseURL+"wiki.css" {
		w.Header().Set("Content-Type", "text/css")
		w.Write(tmplWikiCss)
		return
		} else if r.URL.Path == this.opts.ExpectBaseURL+"favicon.ico" && len(this.opts.FaviconFilePath) > 0 {
			w.Header().Set("Content-Type", "image/x-icon")
			http.ServeFile(w, r, this.opts.FaviconFilePath)
			return
	}

	pto := DefaultPageTemplateOptions(this.opts)
	pto.SessionMessage = `Invalid request.`
	//pto.CurrentPageIsArticle = true
	//pto.CurrentPageName = "quotes/\"2017"
	this.servePageResponse(w, pto)
}

func (this *WikiServer) servePageResponse(w http.ResponseWriter, pto *pageTemplateOptions) {
	err := this.pageTmp.Execute(w, pto)
	if err != nil {
		log.Println(err.Error())
	}
}