import React, { useEffect, useState } from 'react'
import { FaFileAlt, FaCheckCircle, FaUpload } from 'react-icons/fa'
import { MdFileUpload } from 'react-icons/md'
import { RiDraggable } from 'react-icons/ri'
import { deleteDocument, setDocProgComplete } from '../../../store/slices/documentSlice'
import { useDispatch } from 'react-redux'
import { AppDispatch } from '../../../store/store'
import { IoMdClose } from 'react-icons/io'
import api from '../../../config/api'
import { useParams } from 'react-router-dom'
import axios from 'axios'


interface DocumentCardProps {
  id: string;
  name: string;
  isCompleted: boolean;
  transactionTemplateToggle:boolean;
}

const DocumentCard: React.FC<DocumentCardProps> = ({ id, name, isCompleted , transactionTemplateToggle }) => {
  const params = useParams<{ accountId?: string; transactionId?: string; templateId?: string }>();
  const accountId = params.accountId;
  const transactionId = params.transactionId || params.templateId;
  // if (!accountId || !transactionId) {
  //   window.location.href = "/";
  //   return null;
  // }

  const [progress, setProgress] = useState<number>(0)
  const [message, setMessage] = useState<string>('')
  const [documentDel, setDocumentDel] = useState<{ docId: string | null, isDel: boolean }>({ docId: null, isDel: false })

  const dispatch = useDispatch<AppDispatch>()

  useEffect(() => {
    let isCompleted = false;
    let updateTimeout: ReturnType<typeof setTimeout> | null = null;
    let lastUpdate = 0;
    const delay = 1000;

    const docProgSSE = new EventSource(`http://192.168.2.112:8083/api/progress/${id}`);

    docProgSSE.addEventListener('progress', (event) => {
      const jsonData = JSON.parse(event.data);
      console.log(jsonData, "Kaboom");

      if (jsonData.isComplete) {
        isCompleted = true;
        if (updateTimeout) clearTimeout(updateTimeout);
        dispatch(setDocProgComplete(id));
        setProgress(jsonData.progress);
        setMessage(jsonData.message);
        docProgSSE.close(); // Close connection ourselves
        return;
      }

      const now = Date.now();
      const sinceLast = now - lastUpdate;

      if (sinceLast >= delay) {
        setProgress(jsonData.progress);
        setMessage(jsonData.message);
        lastUpdate = now;
      } else {
        if (updateTimeout) clearTimeout(updateTimeout);
        updateTimeout = setTimeout(() => {
          setProgress(jsonData.progress);
          setMessage(jsonData.message);
          lastUpdate = Date.now();
        }, delay - sinceLast);
      }


    });

    docProgSSE.onerror = (error) => {
      if (!isCompleted) {
        console.error("SSE Error", error);
      }
      docProgSSE.close();
    };

    return () => {
      docProgSSE.close();
      if (updateTimeout) clearTimeout(updateTimeout);
    };
  }, [id]);

  console.log(isCompleted, "line 118")

  const radius = 28
  const circumference = 2 * Math.PI * radius
  const offset = circumference - (progress / 100) * circumference

  const handleDeleteDocument = async () => {
    const docId = documentDel.docId;
    if (!docId || !accountId || !transactionId) {
      console.error("Missing document ID, account ID, or transaction ID");
      return;
    }
    const res = await api.delete(`/api/accounts/${accountId}/${transactionTemplateToggle}/${transactionId}/documents/${docId}`)
    if (res.status === 202) {
      dispatch(deleteDocument(docId));
      setDocumentDel({ docId: null, isDel: false });
      console.log("Document deleted successfully");
    }
  }



  return (
    <>

      <div
        key={id}
        className="relative w-[160px] h-[170px] bg-white rounded-xl shadow-sm hover:shadow-md transition p-4 flex flex-col items-center justify-between"
        draggable
      >
        <IoMdClose
          onClick={() => setDocumentDel({ docId: id, isDel: false })}
          className='absolute right-2.5 top-2.5 text-slate-400 text-xl hover:text-red-500 cursor-pointer transition-all' />
        {/* Draggable handle */}
        <RiDraggable
          draggable
          onDragStart={(e) => e.dataTransfer.setData('text/plain', id)}
          className="absolute top-2 left-2 text-gray-400 text-lg cursor-grab drag-handle"
        />

        {/* Main icon or circular loader */}
        <div className="flex flex-col items-center mt-2 mb-1">
          {!isCompleted ? (
            <div className="relative w-16 h-16">
              <svg width="64" height="64" className="rotate-[-90deg]">
                <circle
                  cx="32"
                  cy="32"
                  r={radius}
                  fill="none"
                  stroke="#e5e7eb"
                  strokeWidth="6"
                />
                <circle
                  cx="32"
                  cy="32"
                  r={radius}
                  fill="none"
                  stroke="#3b82f6"
                  strokeWidth="6"
                  strokeDasharray={circumference}
                  strokeDashoffset={offset}
                  strokeLinecap="round"
                  className="transition-all duration-300 ease-in-out"
                />
              </svg>
              <div className="absolute inset-0 flex items-center justify-center text-xs font-semibold text-gray-700 select-none">
                {progress}%
              </div>
            </div>
          ) : (
            <FaFileAlt className="text-red-600 text-5xl mb-1" /> 
          )}
        </div>

        {/* Document name */}
        <span className="text-center text-sm text-gray-800 font-medium truncate max-w-[14ch] leading-snug">
          {name}
        </span>

        {/* Status message */}
        <span className="text-xs text-gray-500 mt-1">{message}</span>
      </div>



      {
        documentDel.docId !== null && <div className="fixed inset-0 backdrop-blur-sm flex items-center justify-center z-50">
          <div className="bg-white rounded-lg shadow-xl p-6 w-80">
            <h3 className="text-lg font-medium text-gray-800 mb-4">Confirm Delete</h3>
            <p className="text-gray-600 mb-6">Are you sure you want to delete?</p>
            <div className="flex justify-end gap-3">
              <button
                onClick={() => setDocumentDel({ docId: null, isDel: false })}
                className="px-4 py-2 text-gray-600 hover:bg-gray-100 rounded-md transition-colors"
              >
                Cancel
              </button>
              <button
                onClick={handleDeleteDocument}
                className="px-4 py-2 bg-red-600 text-white hover:bg-red-700 rounded-md transition-colors"
              >
                Delete
              </button>
            </div>
          </div>
        </div>


      }



    </>
  )
}

export default DocumentCard