mirror of
https://gitlab.com/foxixus/neomovies-api.git
synced 2025-10-27 17:38:51 +05:00
147 lines
3.8 KiB
Go
147 lines
3.8 KiB
Go
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package handlers
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import (
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"fmt"
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"io"
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"net/http"
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"os"
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"path/filepath"
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"strings"
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"github.com/gorilla/mux"
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)
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type ImagesHandler struct{}
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func NewImagesHandler() *ImagesHandler {
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return &ImagesHandler{}
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}
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const TMDB_IMAGE_BASE_URL = "https://image.tmdb.org/t/p"
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func (h *ImagesHandler) GetImage(w http.ResponseWriter, r *http.Request) {
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vars := mux.Vars(r)
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size := vars["size"]
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imagePath := vars["path"]
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if size == "" || imagePath == "" {
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http.Error(w, "Size and path are required", http.StatusBadRequest)
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return
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}
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// Если запрашивается placeholder, возвращаем локальный файл
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if imagePath == "placeholder.jpg" {
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h.servePlaceholder(w, r)
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return
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}
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// Проверяем размер изображения
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validSizes := []string{"w92", "w154", "w185", "w342", "w500", "w780", "original"}
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if !h.isValidSize(size, validSizes) {
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size = "original"
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}
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// Формируем URL изображения
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imageURL := fmt.Sprintf("%s/%s/%s", TMDB_IMAGE_BASE_URL, size, imagePath)
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// Получаем изображение
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resp, err := http.Get(imageURL)
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if err != nil {
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h.servePlaceholder(w, r)
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return
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}
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defer resp.Body.Close()
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if resp.StatusCode != http.StatusOK {
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h.servePlaceholder(w, r)
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return
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}
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// Устанавливаем заголовки
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if contentType := resp.Header.Get("Content-Type"); contentType != "" {
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w.Header().Set("Content-Type", contentType)
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}
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w.Header().Set("Cache-Control", "public, max-age=31536000") // кэшируем на 1 год
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// Передаем изображение клиенту
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_, err = io.Copy(w, resp.Body)
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if err != nil {
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// Если ошибка при копировании, отдаем placeholder
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h.servePlaceholder(w, r)
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return
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}
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}
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func (h *ImagesHandler) servePlaceholder(w http.ResponseWriter, r *http.Request) {
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// Попробуем найти placeholder изображение
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placeholderPaths := []string{
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"./assets/placeholder.jpg",
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"./public/images/placeholder.jpg",
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"./static/placeholder.jpg",
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}
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var placeholderPath string
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for _, path := range placeholderPaths {
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if _, err := os.Stat(path); err == nil {
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placeholderPath = path
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break
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}
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}
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if placeholderPath == "" {
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// Если placeholder не найден, создаем простую SVG заглушку
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h.serveSVGPlaceholder(w, r)
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return
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}
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file, err := os.Open(placeholderPath)
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if err != nil {
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h.serveSVGPlaceholder(w, r)
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return
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}
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defer file.Close()
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// Определяем content-type по расширению
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ext := strings.ToLower(filepath.Ext(placeholderPath))
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switch ext {
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case ".jpg", ".jpeg":
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w.Header().Set("Content-Type", "image/jpeg")
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case ".png":
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w.Header().Set("Content-Type", "image/png")
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case ".gif":
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w.Header().Set("Content-Type", "image/gif")
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case ".webp":
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w.Header().Set("Content-Type", "image/webp")
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default:
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w.Header().Set("Content-Type", "image/jpeg")
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}
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w.Header().Set("Cache-Control", "public, max-age=3600") // кэшируем placeholder на 1 час
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_, err = io.Copy(w, file)
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if err != nil {
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h.serveSVGPlaceholder(w, r)
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}
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}
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func (h *ImagesHandler) serveSVGPlaceholder(w http.ResponseWriter, r *http.Request) {
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svgPlaceholder := `<svg width="300" height="450" xmlns="http://www.w3.org/2000/svg">
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<rect width="100%" height="100%" fill="#f0f0f0"/>
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<text x="50%" y="50%" dominant-baseline="middle" text-anchor="middle" font-family="Arial, sans-serif" font-size="16" fill="#666">
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Изображение не найдено
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</text>
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</svg>`
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w.Header().Set("Content-Type", "image/svg+xml")
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w.Header().Set("Cache-Control", "public, max-age=3600")
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w.Write([]byte(svgPlaceholder))
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}
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func (h *ImagesHandler) isValidSize(size string, validSizes []string) bool {
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for _, validSize := range validSizes {
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if size == validSize {
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return true
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}
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}
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return false
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}
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