package web

import (
	"embed"
	"fmt"
	"html/template"
	"time"
)

//go:embed templates/*.html templates/fragments/*.html
var templateFS embed.FS

func loadTemplates() (*template.Template, error) {
	funcMap := template.FuncMap{
		"formatTime": func(t time.Time) string {
			return t.Format("2006-01-02 15:04:05 UTC")
		},
		"truncateID": func(id string) string {
			if len(id) > 8 {
				return id[:8]
			}
			return id
		},
		"derefTime": func(t *time.Time) time.Time {
			if t == nil {
				return time.Time{}
			}
			return *t
		},
		"derefFloat": func(f *float64) float64 {
			if f == nil {
				return 0
			}
			return *f
		},
		"formatScore": func(f *float64) string {
			if f == nil {
				return "-"
			}
			return fmt.Sprintf("%.0f%%", *f*100)
		},
	}

	return template.New("").Funcs(funcMap).ParseFS(templateFS,
		"templates/layout.html",
		"templates/dashboard.html",
		"templates/fragments/stats.html",
		"templates/fragments/active_sessions.html",
	)
}