package handlers

import (
	"log"
	"net/http"
)

func (a *App) handleDashboard(w http.ResponseWriter, r *http.Request) {
	remoteUser := r.Header.Get("Remote-User")
	remoteEmail := r.Header.Get("Remote-Email")
	remoteGroups := r.Header.Get("Remote-Groups")

	data := map[string]any{
		"AppURL":       a.cfg.AppURL,
		"AutheliaURL":  a.cfg.AutheliaURL,
		"User":         remoteUser,
		"Email":        remoteEmail,
		"Groups":       remoteGroups,
		"Domain":       a.cfg.TraefikDomain,
		"IsSubscribed": remoteGroups != "" && contains(remoteGroups, "customers"),
	}

	if err := a.tmpl.ExecuteTemplate(w, "dashboard.html", data); err != nil {
		log.Printf("template error: %v", err)
		http.Error(w, "internal error", http.StatusInternalServerError)
	}
}

func contains(s, substr string) bool {
	return len(s) >= len(substr) && searchString(s, substr)
}

func searchString(s, sub string) bool {
	for i := 0; i <= len(s)-len(sub); i++ {
		if s[i:i+len(sub)] == sub {
			return true
		}
	}
	return false
}