import "dart:typed_data";

import "package:crab_ui/attachmentDownload.dart";
import "package:crab_ui/structs.dart";
import "package:flutter/material.dart";
import 'package:pdfrx/pdfrx.dart';
import 'package:photo_view/photo_view.dart';

class AttachmentWidget extends StatelessWidget {
  final AttachmentResponse attachment;
  AttachmentWidget({required this.attachment});

  Widget attachmentViewer(AttachmentResponse att) {
    String extension = att.name
        .toString()
        .substring(att.name.toString().indexOf(".") + 1)
        .toLowerCase();
    if (extension == "jpg" || extension == "png") {
      return Image.memory(att.data);
    } else if (extension == "pdf") {
      return PdfViewer.data(Uint8List.fromList(att.data),
          sourceName: att.name,
          params: PdfViewerParams(
            enableTextSelection: true,
            scrollByMouseWheel: 0.5,
            annotationRenderingMode:
                PdfAnnotationRenderingMode.annotationAndForms,
          ));
    }
    return Center(
        child: Container(
          padding: EdgeInsets.all(20),
          decoration: BoxDecoration(
            color: Color(0xff6C63FF),
            borderRadius: BorderRadius.circular(16),
            boxShadow: [
              BoxShadow(
                color: Colors.black26,
                blurRadius: 10,
              ),
            ],       
          ),
          child: Column(
            mainAxisSize: MainAxisSize.min,
            children: [
              Text(
                "No preview available",
                style: TextStyle(
                  color: Colors.white, fontSize: 18, decoration: TextDecoration.none),
              ),
              SizedBox(
                height: 5,
              ),
              GestureDetector(
                child: ElevatedButton(
                  child: Row(
                    mainAxisSize: MainAxisSize.min,
                    children: [
                      Text("Download", style: TextStyle(color: Color(0xff2c3e50)),),
                      Icon(Icons.download,
                      color: Color(0xffb0b0b0),),
                  ]),
                  onPressed: () => Attachmentdownload().saveFile(att),
              )),
              ]),
        ));
  }

  @override
  Widget build(BuildContext context) {
    return Container(
        color: Colors.black38,
        child: Stack(children: <Widget>[
          Container(
            color: Colors.white,
            child: Padding(
              padding: EdgeInsets.fromLTRB(10, 20, 0, 10),
              child: Column(
                children: [
                  Row(
                    children: [
                      CloseButton(onPressed: () => {Navigator.pop(context)}),
                      Text(
                        attachment.name
                            .toString(), //its alr a string but incase ¯\(ツ)/¯ //update: i did that everywhere lol
                        style: TextStyle(
                            color: Colors.black,
                            fontSize: 20,
                            decoration: TextDecoration
                                .none), //TODO: personalize your fonts
                      ),
                    ],
                  ),
                  Expanded(
                    child: attachmentViewer(attachment),
                  )
                ],
              ),
            ),
          ),
        ]));
  }
}