import { useState, useMemo } from "react";
import {
  Dialog,
  DialogContent,
  DialogHeader,
  DialogTitle,
  DialogFooter,
} from "@/components/ui/dialog";
import { Button } from "@/components/ui/button";
import { ChevronDown, ChevronUp } from "lucide-react";

export default function DialogMediaSosial({
  isOpen,
  onClose,
}: {
  isOpen: boolean;
  onClose: () => void;
}) {
  const mediaPlatforms = ["X", "Instagram", "Facebook", "Youtube", "TikTok"];

  const mediaPerPlatform: Record<string, string[]> = {
    X: ["X Mabes", "X Polda Jawa Timur", "X Polda Jawa Barat"],
    Instagram: [
      "Instagram Mabes",
      "Instagram Polda Jawa Timur",
      "Instagram Polda Jawa Barat",
    ],
    Facebook: [
      "Facebook Mabes",
      "Facebook Polda Jawa Timur",
      "Facebook Polda Jawa Barat",
    ],
    Youtube: [
      "Youtube Mabes",
      "Youtube Polda Jawa Timur",
      "Youtube Polda Jawa Barat",
    ],
    TikTok: [
      "TikTok Mabes",
      "TikTok Polda Jawa Timur",
      "TikTok Polda Jawa Barat",
    ],
  };

  const [selectedMediaSosial, setSelectedMediaSosial] = useState<string[]>([]);
  const [searchTerm, setSearchTerm] = useState("");
  const [expanded, setExpanded] = useState<Record<string, boolean>>({});
  const [selectedPlatforms, setSelectedPlatforms] = useState<string[]>([
    "X",
    "Instagram",
    "Facebook",
    "Youtube",
    "TikTok",
  ]);

  // Filter berdasarkan pencarian
  const filteredPlatforms = useMemo(() => {
    return mediaPlatforms.filter((p) =>
      p.toLowerCase().includes(searchTerm.toLowerCase())
    );
  }, [searchTerm]);

  // Toggle platform (misalnya centang Instagram)
  const togglePlatform = (platform: string) => {
    if (selectedPlatforms.includes(platform)) {
      setSelectedPlatforms(selectedPlatforms.filter((p) => p !== platform));
      // hapus semua media sosial di dalam platform tsb
      setSelectedMediaSosial((prev) =>
        prev.filter((m) => !mediaPerPlatform[platform].includes(m))
      );
    } else {
      setSelectedPlatforms([...selectedPlatforms, platform]);
      setSelectedMediaSosial((prev) => [
        ...prev,
        ...mediaPerPlatform[platform],
      ]);
    }
  };

  // Toggle semua platform
  const toggleSelectAll = () => {
    if (selectedPlatforms.length === mediaPlatforms.length) {
      setSelectedPlatforms([]);
      setSelectedMediaSosial([]);
    } else {
      setSelectedPlatforms([...mediaPlatforms]);
      setSelectedMediaSosial(Object.values(mediaPerPlatform).flat());
    }
  };

  // Expand/collapse per platform
  const toggleExpand = (platform: string) => {
    setExpanded((prev) => ({ ...prev, [platform]: !prev[platform] }));
  };

  // Toggle media per item
  const toggleMedia = (media: string) => {
    setSelectedMediaSosial((prev) =>
      prev.includes(media) ? prev.filter((m) => m !== media) : [...prev, media]
    );
  };

  return (
    <Dialog open={isOpen} onOpenChange={onClose}>
      <DialogContent className="w-full max-w-3xl sm:max-h-[90vh] overflow-hidden flex flex-col">
        <DialogHeader>
          <DialogTitle>Pilih Media Sosial</DialogTitle>
        </DialogHeader>

        {/* Input Pencarian */}
        <div className="relative mb-4">
          <input
            type="text"
            placeholder="Cari Media Sosial..."
            value={searchTerm}
            onChange={(e) => setSearchTerm(e.target.value)}
            className="w-full pl-10 pr-4 py-2 border rounded-md focus:outline-none focus:ring-2 focus:ring-blue-500"
          />
          <svg
            xmlns="http://www.w3.org/2000/svg"
            className="w-4 h-4 absolute left-3 top-3 text-gray-400"
            fill="none"
            viewBox="0 0 24 24"
            stroke="currentColor"
          >
            <path
              strokeLinecap="round"
              strokeLinejoin="round"
              strokeWidth={2}
              d="M21 21l-4.35-4.35m0 0A7.5 7.5 0 104.5 4.5a7.5 7.5 0 0012.15 12.15z"
            />
          </svg>
        </div>

        {/* Checkbox utama */}
        <div className="flex flex-wrap gap-3 mb-3">
          <label className="flex items-center gap-2 font-medium cursor-pointer">
            <input
              type="checkbox"
              checked={selectedPlatforms.length === mediaPlatforms.length}
              onChange={toggleSelectAll}
              className="accent-blue-600"
            />
            Semua
          </label>

          {filteredPlatforms.map((platform) => (
            <label
              key={platform}
              className="flex items-center gap-2 cursor-pointer"
            >
              <input
                type="checkbox"
                checked={selectedPlatforms.includes(platform)}
                onChange={() => togglePlatform(platform)}
                className="accent-blue-600"
              />
              {platform}
            </label>
          ))}
        </div>

        {/* Expand per platform */}
        <div className="flex-1 overflow-y-auto border rounded-md p-2 space-y-1">
          {filteredPlatforms.map((platform) => (
            <div key={platform}>
              <button
                onClick={() => toggleExpand(platform)}
                className="flex justify-between items-center w-full p-2 font-medium hover:bg-gray-50 rounded-md"
              >
                <span>Pilih {platform}</span>
                {expanded[platform] ? (
                  <ChevronUp className="w-4 h-4" />
                ) : (
                  <ChevronDown className="w-4 h-4" />
                )}
              </button>

              {expanded[platform] && (
                <div className="pl-4 grid grid-cols-1 sm:grid-cols-2 gap-2 mt-1">
                  {mediaPerPlatform[platform].map((media) => (
                    <label
                      key={media}
                      className="flex items-center gap-2 p-2 rounded-md hover:bg-gray-50 cursor-pointer"
                    >
                      <input
                        type="checkbox"
                        checked={selectedMediaSosial.includes(media)}
                        onChange={() => toggleMedia(media)}
                        className="accent-blue-600"
                      />
                      {media}
                    </label>
                  ))}
                </div>
              )}
            </div>
          ))}
        </div>

        {/* Tag media sosial dipilih */}
        {selectedMediaSosial.length > 0 && (
          <div className="mt-3">
            <p className="text-sm font-medium mb-2">
              {selectedMediaSosial.length} Media Sosial dipilih
            </p>
            <div className="flex flex-wrap gap-2 max-h-[100px] overflow-y-auto border rounded-md p-2 bg-gray-50">
              {selectedMediaSosial.map((m) => (
                <div
                  key={m}
                  className="flex items-center gap-2 px-3 py-1 bg-white rounded-full text-sm border"
                >
                  {m}
                  <button
                    onClick={() => toggleMedia(m)}
                    className="text-gray-500 hover:text-gray-700"
                  >
                    ✕
                  </button>
                </div>
              ))}
            </div>
          </div>
        )}

        {/* Tombol Footer */}
        <DialogFooter className="mt-4">
          <Button variant="outline" onClick={onClose}>
            Batal
          </Button>
          <Button onClick={onClose}>Pilih</Button>
        </DialogFooter>
      </DialogContent>
    </Dialog>
  );
}