package web

import (
	"embed"
	"encoding/json"
	"html/template"
	"net/http"
	"net/url"

	"github.com/gofiber/template/html"
)

//go:embed views/*
var viewsfs embed.FS

func ViewsEngine() *html.Engine {
	engine := html.NewFileSystem(http.FS(viewsfs), ".html")
	engine.AddFunc(
		"unsafe", func(s string) template.HTML {
			return template.HTML(s)
		},
	)
	engine.AddFunc(
		"queryEscape", func(s string) string {
			return url.QueryEscape(s)
		},
	)
	engine.AddFunc(
		"jsonMarshal", func(s any) (string, error) {
			j, err := json.MarshalIndent(s, "", "    ")
			if err != nil {
				return "", err
			}
			return string(j), nil
		},
	)
	return engine
}