package handlers

import (
	"html/template"
	"net/http"
	"os"
	"path/filepath"
	"sort"

	"decor-by-hannahs/internal/db"
)

type Photo struct {
	URL     string
	Caption string
}

func GalleryHandler(q *db.Queries, tmpl *template.Template) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		var photos []Photo
		
		galleryDir := "assets/gallery-photos"
		entries, err := os.ReadDir(galleryDir)
		if err == nil {
			for _, entry := range entries {
				if !entry.IsDir() {
					ext := filepath.Ext(entry.Name())
					if ext == ".jpg" || ext == ".jpeg" || ext == ".png" || ext == ".gif" {
						photos = append(photos, Photo{
							URL:     "/assets/gallery-photos/" + entry.Name(),
							Caption: "",
						})
					}
				}
			}
		}
		
		sort.Slice(photos, func(i, j int) bool {
			return photos[i].URL < photos[j].URL
		})
		
		type data struct {
			Photos     []Photo
			ActivePage string
		}
		if err := tmpl.ExecuteTemplate(w, "gallery.tmpl", data{Photos: photos, ActivePage: "gallery"}); err != nil {
			http.Error(w, "Failed to render page", http.StatusInternalServerError)
		}
	}
}
