"use client";

import {
  Dialog,
  DialogContent,
  DialogHeader,
  DialogTitle,
  DialogFooter,
} from "@/components/ui/dialog";
import { Button } from "@/components/ui/button";
import { Input } from "@/components/ui/input";
import { Upload, X } from "lucide-react";
import { useState, useRef, useEffect } from "react";
import { createGalery, uploadGaleryFile } from "@/service/galery";

export function GaleriDialog({ open, onClose, onSubmit }: any) {
  const [title, setTitle] = useState("");
  const [description, setDescription] = useState("");
  const [files, setFiles] = useState<File[]>([]);
  const [previews, setPreviews] = useState<string[]>([]);
  const fileRef = useRef<HTMLInputElement>(null);

  useEffect(() => {
    if (!files || files.length === 0) {
      setPreviews([]);
      return;
    }

    const objectUrls = files.map((file) => URL.createObjectURL(file));
    setPreviews(objectUrls);

    return () => {
      objectUrls.forEach((url) => URL.revokeObjectURL(url));
    };
  }, [files]);

  const handleFileChange = (e: React.ChangeEvent<HTMLInputElement>) => {
    const files = e.target.files;
    if (!files) return;
    setFiles((prev: File[]) => [...prev, ...Array.from(files)]);
  };

  const removeFile = (index: number) => {
    setFiles((prev) => prev.filter((_, i) => i !== index));
  };

  const handleSubmit = async () => {
    try {
      if (!title) return alert("Judul wajib diisi!");

      const formData = new FormData();
      formData.append("title", title);
      formData.append("description", description);

      const res = await createGalery(formData);

      const galleryId = res?.data?.data?.id;
      if (!galleryId) {
        alert("Galeri gagal dibuat");
        return;
      }

      console.log("Galeri Created:", galleryId);

      for (const file of files) {
        const fileForm = new FormData();
        fileForm.append("gallery_id", galleryId);
        fileForm.append("title", title);
        fileForm.append("file", file);

        const uploadRes = await uploadGaleryFile(galleryId, fileForm);
        console.log("File Uploaded:", uploadRes?.data);
      }

      onSubmit();

      setTitle("");
      setDescription("");
      setFiles([]);
    } catch (error) {
      console.error("Submit failed:", error);
      alert("Gagal mengupload galeri");
    }
  };

  return (
    <Dialog open={open} onOpenChange={onClose}>
      <DialogContent className="max-w-2xl rounded-2xl p-0 overflow-hidden">
        {/* HEADER */}
        <div className="bg-[#1F6779] text-white px-6 py-4 flex justify-between items-center">
          <DialogTitle className="text-white">Tambah Galeri</DialogTitle>
        </div>

        {/* BODY */}
        <div className="px-6 py-6 space-y-6">
          {/* Judul */}
          <div>
            <label className="font-medium text-sm">
              Judul Galeri <span className="text-red-500">*</span>
            </label>
            <Input
              placeholder="Masukkan judul galeri"
              className="mt-1 h-12"
              value={title}
              onChange={(e) => setTitle(e.target.value)}
            />
          </div>

          {/* Deskripsi */}
          <div>
            <label className="font-medium text-sm">
              Deskripsi Galeri <span className="text-red-500">*</span>
            </label>
            <Input
              placeholder="Masukkan deskripsi galeri"
              className="mt-1 h-12"
              value={description}
              onChange={(e) => setDescription(e.target.value)}
            />
          </div>

          {/* Upload File */}
          <div>
            <label className="font-medium text-sm">
              Upload File (opsional)
            </label>

            <div
              className="border-2 border-dashed rounded-xl flex flex-col items-center justify-center py-10 cursor-pointer"
              onClick={() => fileRef.current?.click()}
            >
              <Upload className="w-10 h-10 text-[#1F6779]" />

              <p className="text-sm text-gray-600 mt-2">
                Klik untuk upload atau drag & drop
              </p>
              <p className="text-xs text-gray-400">PNG, JPG (max 2MB)</p>

              <input
                ref={fileRef}
                type="file"
                className="hidden"
                onChange={handleFileChange}
                accept="image/*"
                multiple
              />
            </div>

            {/* Preview Gambar */}
            {previews.length > 0 && (
              <div className="mt-4 flex flex-wrap gap-4">
                {previews.map((src, i) => (
                  <div
                    key={i}
                    className="relative w-24 h-24 rounded-lg overflow-hidden border border-gray-300"
                  >
                    <img
                      src={src}
                      alt={`preview-${i}`}
                      className="object-cover w-full h-full"
                    />
                    <button
                      onClick={() => removeFile(i)}
                      className="absolute top-1 right-1 bg-red-600 rounded-full p-1 text-white hover:bg-red-700 transition"
                      title="Hapus gambar"
                      type="button"
                    >
                      <X size={16} />
                    </button>
                  </div>
                ))}
              </div>
            )}
          </div>
        </div>

        {/* FOOTER */}
        <DialogFooter className="flex justify-between px-6 pb-6 gap-4">
          <Button
            variant="ghost"
            onClick={onClose}
            className="bg-slate-200 text-slate-700 w-full h-12"
          >
            Batal
          </Button>

          <Button
            onClick={handleSubmit}
            className="bg-[#1F6779] hover:bg-[#165766] text-white w-full h-12"
          >
            Submit
          </Button>
        </DialogFooter>
      </DialogContent>
    </Dialog>
  );
}