package handler

import (
	"encoding/json"
	"log"
	"net/http"
	"strings"
)

func (h *Handler) Delete(w http.ResponseWriter, r *http.Request) {
	id := r.PathValue("id")
	if id == "" {
		http.NotFound(w, r)
		return
	}

	auth := r.Header.Get("Authorization")
	if !strings.HasPrefix(auth, "Bearer ") {
		http.Error(w, "Authorization: Bearer <delete_token> required", http.StatusUnauthorized)
		return
	}
	token := strings.TrimPrefix(auth, "Bearer ")

	rec, err := h.store.Get(id)
	if err != nil {
		http.NotFound(w, r)
		return
	}

	if rec.DeleteToken != token {
		http.Error(w, "invalid delete token", http.StatusForbidden)
		return
	}

	if err := h.r2.Delete(r.Context(), rec.R2Key); err != nil {
		log.Printf("r2 delete error: %v", err)
		http.Error(w, "failed to delete from storage", http.StatusInternalServerError)
		return
	}

	if err := h.store.Delete(id); err != nil {
		log.Printf("db delete error: %v", err)
		http.Error(w, "internal error", http.StatusInternalServerError)
		return
	}

	w.Header().Set("Content-Type", "application/json")
	json.NewEncoder(w).Encode(map[string]string{"status": "deleted", "id": id})
}