AlbumModel.dart

/*
 * @author lsy
 * @date   2019-09-09
 **/

import 'dart:async';
import 'dart:io';

import 'package:flutter/cupertino.dart';
import 'package:flutter/foundation.dart';
import 'package:gengmei_flutter_plugin/ScanImagePlugn.dart';
import 'package:gengmei_flutter_plugin/gengmei_flutter_plugin.dart';
import 'package:gengmei_flutter_plugin_example/AlbumModel/LiveData.dart';
import 'package:gengmei_flutter_plugin_example/AlbumModel/bean/DirBean.dart';
import 'package:gengmei_flutter_plugin_example/AlbumModel/page/preview/AlbumPreviewPage.dart';
import 'package:gengmei_flutter_plugin_example/AlbumModel/repository/AlbumRepository.dart';

import '../../Anim.dart';

const String MainDir = "IsGengmeiAlbumAllImages";
const String MainDirExplain = "全部相片";

Map<String, List<ScanImageItem>> paseAlbum(Object event) {
  var map = Map<String, List<dynamic>>.from(event);

  var newMap = Map<String, List<ScanImageItem>>();
  map.forEach((k, v) {
    var list = List<Map>.from(v);
    var scanList = List<ScanImageItem>();
    list.forEach((listMap) {
      var map2 = Map<String, dynamic>.from(listMap);
      ScanImageItem item = new ScanImageItem();
      item.path = map2["path"] ?? "";
      item.realPath = map2["realPath"] ?? "";
      item.isVideo = map2["isVideo"] == "T" ? true : false;
      item.during = map2["during"] ?? "0";
      item.size = map2["size"] ?? 0;
      scanList.add(item);
    });
    newMap[k] = scanList;
  });
  return newMap;
}

class AlbumModel {
  LiveData<List<ScanImageItem>> albumLive = LiveData();
  LiveData<List<DirBean>> dirLive = LiveData();
  LiveData<String> titleData = LiveData();

  Map<String, List<ScanImageItem>> _mainValue = Map();
  List<String> _selectList = List();
  String _nowDirName = MainDir;
  StreamSubscription _listen;
  bool showCamera = true;
  int _maxCount = 1;

  get selectList => _selectList;

  get maxCount => _maxCount;

  get nowDirName {
    if (_nowDirName == MainDir) {
      return MainDirExplain;
    } else {
      return _nowDirName;
    }
  }

  bool showPop = false;
  bool isAndroid = Platform.isAndroid;
  List<DirBean> _dirList = List();

  get dirList => _dirList;

  AlbumModel(this.showCamera, int maxCount, List<String> selectedList) {
    this._maxCount = maxCount;
    if (selectedList != null && !selectedList.isEmpty) {
      this._selectList.clear();
      this._selectList.addAll(selectedList);
    }
  }

  void _onEvent(Object event) {
//    var map = (event as Map);
//    if (_mainValue == null || _mainValue.length == 0) {
//      _mainValue = map;
//    } else {
//      _mainValue.forEach((k, itemList) {
//        var key = map[k];
//        if (key != null) {
//          for (int i = 0; i < itemList.length; i++) {
//            if (key[i] == null) {
//              continue;
//            }
//            itemList[i].path = key[i]["path"];
//            itemList[i].realPath = key[i]["realPath"];
//          }
//        }
//      });
//    }
//    if (Platform.isAndroid) {
//      var map = (event as Map);
//      //Map<String, List<ScanImageItem>>
//      if (_mainValue == null || _mainValue.length == 0) {
//        _mainValue = map;
//      } else {
//        _mainValue.forEach((k, itemList) {
//          var key = map[k];
//          if (key != null) {
//            for (int i = 0; i < itemList.length; i++) {
//              if (key[i] == null) {
//                continue;
//              }
//              itemList[i].path = key[i]["path"];
//              itemList[i].realPath = key[i]["realPath"];
//            }
//          }
//        });
//      }
//      albumLive.notifyView(_mainValue[_nowDirName]);
//    } else {
      compute(paseAlbum, event).then((value) {
        _mainValue = value;
        albumLive.notifyView(_mainValue[_nowDirName]);
      });
//    }

//    _mainValue=newMap;
//    var list = map[_nowDirName];
//    _mainValue.forEach((k, itemList) {
//      var key = map[k];
//      if (key != null) {
//        for (int i = 0; i < itemList.length; i++) {
//          if (key[i] == null) {
//            continue;
//          }
//          itemList[i].path = key[i]["path"];
//          itemList[i].realPath = key[i]["realPath"];
//        }
//      }
//    });
//    var recordList=_mainValue[_nowDirName];
//    List<ScanImageItem> tempList = new List();
//    if (list != null && !list.isEmpty) {
////      for (int i = 0; i < albumLive.data.length; i++) {
////        if (list[i]["path"] != null) {
////          albumLive.data[i].path = list[i]["path"];
////        }
////      }
//      for (var item in list) {
//        ScanImageItem scanImageItem = new ScanImageItem();
//        scanImageItem.path = item["path"];
//        scanImageItem.size = item["size"];
//        scanImageItem.realPath = item["realPath"];
//        tempList.add(scanImageItem);
//      }
//    }
//    print("EVENTTTT  !! ${tempList.length}   ${tempList}");
  }

  void _onError(Object error) {
    print("ERROR $error");
  }

  void initScanImages(BuildContext context) {
//    if (isAndroid) {
    _listen = GengmeiFlutterPlugin.phoneImagesEvent
        .receiveBroadcastStream()
        .listen(_onEvent, onError: _onError);
//    }
    AlbumRepository.getInstance().scanPhoneImg().listen((value) {
      if (value != null) {
        _mainValue = value;
        value.forEach((key, eachValue) {
//          print("VALUE!!!  $key");
          if (eachValue != null && !eachValue.isEmpty) {
            if (key == MainDir) {
              titleData.notifyView(MainDirExplain);
              albumLive.notifyView(eachValue);
              _dirList.add(DirBean(
                  MainDirExplain, eachValue.length, File(eachValue[0].path)));
            } else {
              _dirList
                  .add(DirBean(key, eachValue.length, File(eachValue[0].path)));
            }
          }
        });
      }
    }).onError((error) {
//      Toast.show(context, error.toString());
      print(error);
    });
  }

  void changDir() {}

  @override
  void dispose() {
    GengmeiFlutterPlugin.quitPage();
    if (_listen != null) {
      _listen.cancel();
    }
    albumLive.dispost();
    dirLive.dispost();
    titleData.dispost();
  }

  select(int index) {}

  bool isSelect(int index) {
    bool haveIt = false;
    if (_selectList.isEmpty) {
      return false;
    }
    _selectList.forEach((value) {
      if (isAndroid) {
        if (value == albumLive.data[index].realPath) {
          haveIt = true;
        }
      } else {
        if (value == albumLive.data[index].path) {
          haveIt = true;
        }
      }
    });
    return haveIt;
  }

  bool isFullSelect() {
    return _selectList.length == _maxCount;
  }

  void clickItem(BuildContext context, int index) {
    String path;
    if (isAndroid) {
      path = albumLive.data[index].realPath;
    } else {
      path = albumLive.data[index].path;
    }

    if (!_selectList.contains(path)) {
      if (_selectList.length >= _maxCount) {
//        Toast.show(context, "最多选择${_maxCount}张图片");
        return;
      }
      _selectList.add(path);
    } else {
      _selectList.remove(path);
    }
    albumLive.notifyView(_mainValue[_nowDirName]);
  }

  void onNext(BuildContext context) {
    if (_selectList.isEmpty) {
      Navigator.pop(context, "");
    } else {
      if (Platform.isAndroid) {
        Navigator.pop(context, _selectList[0]);
      } else {
        iosAlbum(_selectList, context, (value) {
          print(value);
//          iosAlbum(_selectList, context, (image) {
//            iosAlbum(_selectList, context, (video) {
//              print("IM $image   VIDEI ${video}");
//            });
//          });
          Navigator.pop(context, List<Map>.from(value));
        });
      }
    }
  }

  void iosAlbum(List<String> list, BuildContext context, Function fun) {
    GengmeiFlutterPlugin.ios_album_path(list).then((value) {
      fun(value);
    }).catchError((error) {
      print(error);
    });
  }

  void nativeCamera(BuildContext context) {
    if (_selectList.length == maxCount) {
//      Toast.show(context, "最多选择${_maxCount}张图片");
      return;
    }
    AlbumRepository.getInstance().nativeCamera().listen((data) {
      if (data == null) {
//        Toast.show(context, "没有拍摄照片");
      } else {
        print(data);
        ScanImageItem item = new ScanImageItem();
        item.realPath =
            data["realPath"] == null ? null : data["realPath"] as String;
        item.path = data["path"] as String;
        item.isVideo = false;
        String foldName = data["folderName"] as String;
        var list = _mainValue[foldName];
        if (list == null) {
          _mainValue[foldName] = new List();
          _mainValue[foldName].add(item);
        } else {
          list.insert(0, item);
        }
        _mainValue[MainDir].insert(0, item);
        _selectList.add(item.realPath);
        bool haveIt = false;
        _dirList.forEach((it) {
          if (it.dirName == foldName) {
            haveIt = true;
            it.picCount++;
          }
        });
        if (!haveIt) {
          _dirList.add(new DirBean(foldName, 1, File(item.path)));
        }
        dirLive.notifyView(_dirList);
        albumLive.notifyView(_mainValue[_nowDirName]);
//        selectSizeLive.notifyView(_selectList.length + _selectVideoList.length);
//        Navigator.pop(context, data);
//        _selectList.add(data);
        //TODO
      }
    }).onError((error) {
//      Toast.show(context, error);
      print(error);
    });
  }

  void AiCamera(BuildContext context) {
    if (_selectList.length == maxCount) {
//      Toast.show(context, "最多选择${_maxCount}张图片");
      return;
    }
//    AlbumRepository.getInstance().aiCamera().listen((data) {
//      if (data == null || data.isEmpty || data == "") {
////        Toast.show(context, "没有拍摄照片");
//      } else {
//        Navigator.pop(context, data);
////        _selectList.add(data);
//        //TODO
//      }
//    }).onError((error) {});
  }

  File getDirPic(int index) {
    return File(_mainValue[_dirList[index]][0].path);
  }

  void changPopState() {
    if (showPop) {
      showPop = false;
      dirLive.notifyView(null);
    } else {
      showPop = true;
      dirLive.notifyView(_dirList);
    }
    titleData.notifyView(nowDirName);
  }

  void selectDir(int index) {
    String dirName = _dirList[index].dirName;
    titleData.notifyView(dirName);
    if (dirName == MainDirExplain) {
      dirName = MainDir;
    }
    _nowDirName = dirName;
    dirLive.notifyView(null);
    showPop = false;
    albumLive.notifyView(_mainValue[dirName]);
  }

  bool previewItemClick = false;

  void previewItem(BuildContext context, int index, String pageName) {
    String path;
    if (Platform.isAndroid) {
      path = albumLive.data[index].realPath;
      if (albumLive.data[index].isVideo) {
        GengmeiFlutterPlugin.playAlbumVideo(path);
      } else {
        Navigator.push(context, CustomRoute(AlbumPreviewPage(path, pageName)));
      }
    } else {
      path = albumLive.data[index].path;
      if (albumLive.data[index].isVideo) {
        GengmeiFlutterPlugin.playAlbumVideo(path);
      } else {
        GengmeiFlutterPlugin.previewImage(path);
//        if (previewItemClick) {
//          return;
//        }
//        previewItemClick = true;
//        iosItem(path, context, (value) {
//          var realPath = value["realImagePath"];
//          Navigator.push(
//              context, CustomRoute(AlbumPreviewPage(realPath, pageName)));
//        });
      }
//      Navigator.push(
//            context, CustomRoute(AlbumPreviewPage(albumLive.data[index].path, pageName)));
    }
  }

  void iosItem(String path, BuildContext context, Function fun) {
//    GengmeiFlutterPlugin.ios_album_item(path).then((value) {
//      if (value != null) {
//        fun(Map<String, String>.from(value));
//      }
//      previewItemClick = false;
//    }).catchError((error) {
//      previewItemClick = false;
//      print(error);
//    });
  }
}