package server

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

// handleUpload handles file uploads to ir.attachment.
func (s *Server) handleUpload(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodPost {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	// Parse multipart form (max 128MB)
	if err := r.ParseMultipartForm(128 << 20); err != nil {
		http.Error(w, "File too large", http.StatusRequestEntityTooLarge)
		return
	}

	file, header, err := r.FormFile("ufile")
	if err != nil {
		http.Error(w, "No file uploaded", http.StatusBadRequest)
		return
	}
	defer file.Close()

	// Read file content
	data, err := io.ReadAll(file)
	if err != nil {
		http.Error(w, "Read error", http.StatusInternalServerError)
		return
	}

	log.Printf("upload: received %s (%d bytes, %s)", header.Filename, len(data), header.Header.Get("Content-Type"))

	// TODO: Store in ir.attachment table or filesystem
	// For now, just acknowledge receipt

	w.Header().Set("Content-Type", "application/json")
	json.NewEncoder(w).Encode(map[string]interface{}{
		"id":   1,
		"name": header.Filename,
		"size": len(data),
	})
}