app/lib/paegs/chat_page/chat_page_view.dart

import 'dart:convert';
import 'dart:io';

import 'package:bbyyy/beans/goods_bean_entity.dart';
import 'package:bbyyy/beans/message_bean_entity.dart';
import 'package:bbyyy/beans/send_message_bean_entity.dart';
import 'package:bbyyy/beans/upload_image_bean_entity.dart';
import 'package:bbyyy/https/my_request.dart';
import 'package:bbyyy/https/url.dart';
import 'package:bbyyy/msgDB/my_msg_db.dart';
import 'package:bbyyy/my_tools/AsperctRaioImage.dart';
import 'package:bbyyy/my_tools/const.dart';
import 'package:bbyyy/my_tools/easy_loading/easy_loading.dart';
import 'package:bbyyy/my_tools/event_bus.dart';
import 'package:bbyyy/my_tools/my_colors.dart';
import 'package:bbyyy/my_tools/my_cookie.dart';
import 'package:bbyyy/my_tools/my_tools.dart';
import 'package:bbyyy/my_tools/my_views.dart';
import 'package:bbyyy/paegs/chat_page/chat_data.dart';
import 'package:bbyyy/paegs/picture_display_page/picture_display_page.dart';
import 'package:bbyyy/paegs/red_packet_page/red_packet_page.dart';
import 'package:flutter/material.dart';
import 'package:flutter_svg/svg.dart';

class ChatPageView {
  TextEditingController textEditingController = TextEditingController();
  var showM = false;
  var showS = false;

  inputBox(BuildContext context, FocusNode focusNode) {
    return StatefulBuilder(builder: (c, s) {
      return SafeArea(
        top: false,
        child: Container(
          child: Material(
            color: MyColors.cf8f8f8,
            child: Column(
              children: <Widget>[
                Container(
                  constraints: BoxConstraints(
                    maxHeight: 144.0,
                    minHeight: 50,
                  ),
                  padding: EdgeInsets.only(left: 0, right: 13),
                  child: Row(
                    children: <Widget>[
                      Expanded(
                        flex: 280,
                        child: Container(
                          constraints: BoxConstraints(
                            minHeight: 30,
                          ),
                          margin: EdgeInsets.only(
                              top: 10, bottom: 10, left: 14, right: 8.0),
                          decoration: BoxDecoration(
                              color: Colors.white,
                              borderRadius: BorderRadius.circular(2.0)),
                          child: TextField(
                            controller: textEditingController,
                            focusNode: focusNode,
                            cursorColor: MyColors.cFF4233,
                            cursorWidth: 1.0,
                            onTap: () {
                              s(() {
                                showM = false;
                                EventBus().emit('s2b');
                              });
                            },
                            decoration: InputDecoration(
                                border: InputBorder.none,
                                disabledBorder: InputBorder.none,
                                enabledBorder: InputBorder.none,
                                focusedBorder: InputBorder.none,
                                isDense: true,
                                contentPadding:
                                    const EdgeInsets.fromLTRB(8, 4.5, 8, 4.5)),
                            maxLines: null,
                            style: TextStyle(
                                color: Colors.black,
                                fontSize: 16,
                                height: 1.3,
                                letterSpacing: 0.2),
                            keyboardType: TextInputType.multiline,
                            onChanged: (t) {
                              s(() {
                                if (t.length > 0) {
                                  showS = true;
                                } else {
                                  showS = false;
                                }
                              });
                            },
                          ),
                        ),
                      ),
                      Expanded(
                        child: showS
                            ? GestureDetector(
                                child: Container(
                                  height: 30,
                                  width: 52,
                                  margin: EdgeInsets.only(bottom: 10),
                                  alignment: Alignment.center,
                                  decoration: BoxDecoration(
                                      borderRadius:
                                          BorderRadius.all(Radius.circular(15)),
                                      color: MyColors.cFF4233),
                                  child: Text(
                                    '发送',
                                    style: TextStyle(
                                        color: Colors.white, fontSize: 15),
                                  ),
                                ),
                                onTap: () {
                                  // s(() {
                                  //   sendMessages(
                                  //       textEditingController.text.toString(),
                                  //       false);
                                  //   textEditingController.clear();
                                  //   showS = false;
                                  // });
                                  sendMsg(
                                      chatMsgTypeText,
                                      ChatData().chatWith.userUid,
                                      textEditingController.text.toString(),
                                      (re, hE) async {
                                    if (!hE) {
                                      SendMessageBeanEntity entity =
                                          SendMessageBeanEntity().fromJson(
                                              json.decode(re.data.toString()));
                                      MsgDB msgDB = MsgDB(
                                          'table${MyCookie().getUID()}_${entity.data.receiverUid}');
                                      if (!msgDB.isTableExits) {
                                        await msgDB.open();
                                      }
                                      await msgDB.addTableData([entity.data]);
                                      EventBus().emit('hasNewMsg', entity.data);
                                      EventBus().emit(
                                          'hasNewMsgInMsgPage', entity.data);
                                    }
                                  }, (e) {});
                                  s(() {
                                    textEditingController.clear();
                                    showS = false;
                                  });
                                },
                                behavior: HitTestBehavior.translucent,
                              )
                            : GestureDetector(
                                child: Container(
                                  child: SvgPicture.asset(
                                    'images/svg/功能（发图片什么的）.svg',
                                    height: 28,
                                    width: 28,
                                  ),
                                  margin: EdgeInsets.only(bottom: 10),
                                ),
                                onTap: () {
                                  s(() {
                                    showM = !showM;
                                    if (showM) {
                                      MyTools().hideKeyboard(context);
                                    }
                                  });
                                },
                                behavior: HitTestBehavior.translucent,
                              ),
                        flex: 58,
                      ),
                    ],
                    crossAxisAlignment: CrossAxisAlignment.end,
                  ),
                ),
                Visibility(
                  child: Column(
                    children: <Widget>[
                      Divider(
                        height: 0.5,
                        color: MyColors.cE1E1E1,
                      ),
                      Container(
                        height: 100,
                        child: SingleChildScrollView(
                          child: moreItem(context, focusNode, s),
                        ),
                      ),
                    ],
                  ),
                  visible: showM,
                )
              ],
              mainAxisSize: MainAxisSize.min,
            ),
            elevation: 0,
          ),
          color: MyColors.cf3f3f3,
        ),
      );
    });
  }

  moreItem(BuildContext context, FocusNode focusNode, StateSetter s) {
    return Container(
      height: 100,
      child: GridView(
        gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
            crossAxisCount: 5, //横轴三个子widget
            childAspectRatio: 1,
            crossAxisSpacing: 20,
            mainAxisSpacing: 10 //宽高比为1时，子widget
            ),
        children: getItems(context, focusNode, s),
        padding: EdgeInsets.only(left: 14, right: 20, top: 8, bottom: 8),
      ),
    );
  }

  getItems(BuildContext context, FocusNode focusNode, StateSetter s) {
    List<Widget> items = [];
    items.add(GestureDetector(
      child: Container(
        child: SvgPicture.asset(
          'images/svg/图片.svg',
        ),
      ),
      behavior: HitTestBehavior.translucent,
      onTap: () async {
        File img = await selectPicturesIndividually();
        if (img != null) {
          sendImg(img);
        }
      },
    ));
    items.add(GestureDetector(
      child: Container(
        child: SvgPicture.asset(
          'images/svg/发红包.svg',
        ),
      ),
      behavior: HitTestBehavior.translucent,
      onTap: () async {
        MyTools()
            .toPage(context, RedPacketPage(ChatData().chatWith), (then) {});
      },
    ));
    return items;
  }

  goodsInfo(GoodsBeanDataData goods) {
    if (goods == null) {
      return Container();
    } else {
      return Container(
        padding: EdgeInsets.symmetric(horizontal: 12, vertical: 10),
        color: Colors.white,
        child: Row(
          children: [
            Container(
              margin: EdgeInsets.only(right: 7),
              child: ClipRRect(
                child: MyViews().netImg(imgURL(goods.coverPath), 54, 54,
                    placeholder: 'images/svg/goodsDefImg.svg'),
                borderRadius: BorderRadius.circular(4),
              ),
            ),
            Expanded(
              child: Container(
                constraints: BoxConstraints(minHeight: 54),
                child: Column(
                  children: [
                    Text(
                      '${goods.title}',
                      style: TextStyle(color: MyColors.c333333, fontSize: 13),
                      maxLines: 2,
                      overflow: TextOverflow.ellipsis,
                      softWrap: true,
                    ),
                    Row(
                      children: [
                        MyViews()
                            .myText('¥${goods.price}', MyColors.cFF4233, 12),
                        Container(
                          decoration: BoxDecoration(
                            color: MyColors.cFF4233,
                            borderRadius: BorderRadius.circular(7),
                          ),
                          height: 14,
                          width: 40,
                          child: MyViews()
                              .myText('找货', Colors.white, 8, height: 1.0),
                          alignment: Alignment.center,
                          padding: EdgeInsets.only(top: 1),
                        )
                      ],
                      mainAxisAlignment: MainAxisAlignment.spaceBetween,
                    ),
                  ],
                  crossAxisAlignment: CrossAxisAlignment.start,
                  mainAxisAlignment: MainAxisAlignment.spaceBetween,
                ),
              ),
            ),
          ],
        ),
      );
    }
  }

  chatItems(MessageBeanContent msg, BuildContext context) {
    return Container(
      padding: EdgeInsets.only(left: 14, right: 14, bottom: 11, top: 11),
      child: Column(
        children: [
          Visibility(
            child: MyViews().myText(msg.sentAt, MyColors.c999999, 10),
            visible: showTime(msg),
          ),
          Container(
            height: 13,
          ),
          Row(
            children: [
              msg.senderUid != MyCookie().getUID()
                  ? headWidget(msg)
                  : Expanded(
                      child: Container(
                      child: chatBubble(msg, context),
                      alignment: Alignment.centerRight,
                    )),
              Container(
                width: 8,
              ),
              msg.senderUid != MyCookie().getUID()
                  ? Expanded(
                      child: Container(
                      child: chatBubble(msg, context),
                      alignment: Alignment.centerLeft,
                    ))
                  : headWidget(msg),
            ],
            crossAxisAlignment: msg.senderUid != MyCookie().getUID()
                ? CrossAxisAlignment.start
                : CrossAxisAlignment.start,
            mainAxisAlignment: MainAxisAlignment.start,
          ),
          Visibility(
            child: Container(child: MyViews().myText('红包已自动存入', MyColors.c999999, 10),margin: EdgeInsets.only(top: 10),),
            visible: msg.type == chatMsgTypeRedPackage,
          )
        ],
      ),
    );
  }

  headWidget(MessageBeanContent msg) {
    return ClipRRect(
      child: msg.senderUid==0?Image.asset('images/app_logo.png',width: 40,height: 40,):MyViews().netImg(imgURL(msg.senderPic), 40, 40),
      borderRadius: BorderRadius.circular(20),
    );
  }

  chatBubble(MessageBeanContent msg, BuildContext context) {
    if (msg.type == chatMsgTypePic) {}
    return ClipRRect(
      borderRadius: BorderRadius.circular(4),
      child: Container(
        constraints: BoxConstraints(
            minHeight: 40, maxWidth: MediaQuery.of(context).size.width - 140),
        color: Colors.white,
        child: bubbleItem(msg, context),
        padding: EdgeInsets.symmetric(
            horizontal: msg.type == chatMsgTypeText ? 14 : 1,
            vertical: msg.type == chatMsgTypeText ? 10 : 1),
      ),
    );
  }

  // sendMessages(String content, bool isImg) async {
  //   var now = new DateTime.now();
  //   //http://172.16.104.14:4151/pub?topic=97231698
  //   Response response = await Dio().post(
  //       'http://${MyCookie().server}:4151/pub?topic=${ChatData().chatWith.userUid}',
  //       data: {
  //         "type": "新消息",
  //         "content": {
  //           "sender": {
  //             "pic": MyCookie().loginInformation.data.extra.picture,
  //             "name": MyCookie().loginInformation.data.extra.name,
  //             "id": MyCookie().loginInformation.data.extra.id,
  //             "uid": MyCookie().getUID(),
  //           },
  //           "receiver": {
  //             "pic": ChatData().chatWith.userPic,
  //             "name": ChatData().chatWith.userName,
  //             "id": ChatData().chatWith.userUid,
  //             "uid": ChatData().chatWith.userUid,
  //           },
  //           "content": content,
  //           "time": now.toString().substring(0, 19),
  //           "type": isImg ? "图片" : "文字",
  //           "uuid": getUUID()
  //         }
  //       });
  //   if (response.data.toString() == 'OK') {
  //     print(response.data.toString());
  //     MsgDB msgDB =
  //         MsgDB('table${MyCookie().getUID()}_${ChatData().chatWith.userUid}');
  //     if (!msgDB.isTableExits) {
  //       await msgDB.open();
  //     }
  //     NewMsgBeanEntity newMsg =
  //         NewMsgBeanEntity().fromJson(json.decode(json.encode({
  //       "type": "新消息",
  //       "content": {
  //         "sender": {
  //           "pic": MyCookie().loginInformation.data.extra.picture,
  //           "name": MyCookie().loginInformation.data.extra.name,
  //           "id": MyCookie().loginInformation.data.extra.id,
  //           "uid": MyCookie().getUID(),
  //         },
  //         "receiver": {
  //           "pic": ChatData().chatWith.userPic,
  //           "name": ChatData().chatWith.userName,
  //           "id": ChatData().chatWith.userUid,
  //           "uid": ChatData().chatWith.userUid,
  //         },
  //         "content": content,
  //         "time": now.toString().substring(0, 19),
  //         "type": isImg ? "图片" : "文字",
  //         "uuid": getUUID(),
  //         "shop": {},
  //         "order": {},
  //         "goods": {},
  //       }
  //     })));
  //     await msgDB.addTableData([newMsg]);
  //     EventBus().emit('hasNewMsg', newMsg);
  //     EventBus().emit('hasNewMsgInMsgPage', newMsg);
  //   }
  // }

  void sendImg(File img) {
    EasyLoading.show();
    upload(img, (re, hE) {
      if (!hE) {
        UploadImageBeanEntity data =
            UploadImageBeanEntity().fromJson(json.decode(re.data.toString()));
        sendMsg(chatMsgTypePic, ChatData().chatWith.userUid, data.data[0].path,
            (re, hE) async {
          if (!hE) {
            SendMessageBeanEntity entity = SendMessageBeanEntity()
                .fromJson(json.decode(re.data.toString()));
            MsgDB msgDB =
                MsgDB('table${MyCookie().getUID()}_${entity.data.receiverUid}');
            if (!msgDB.isTableExits) {
              await msgDB.open();
            }
            await msgDB.addTableData([entity.data]);
            EventBus().emit('hasNewMsg', entity.data);
            EventBus().emit('hasNewMsgInMsgPage', entity.data);
          }
        }, (e) {});
      }
      EasyLoading.dismiss();
    }, (e) {});
  }

  showTime(MessageBeanContent msg) {
    int index =
        ChatData().msges.indexWhere((element) => element.uuid == msg.uuid);
    if (index == ChatData().msges.length - 1) {
      return true;
    } else {
      return DateTime.parse(msg.sentAt).isAfter(
          DateTime.parse(ChatData().msges[index + 1].sentAt)
              .add(Duration(minutes: 2)));
    }
  }

  bubbleItem(MessageBeanContent msg, BuildContext context) {
    if (msg.type == chatMsgTypeText) {
      return MyViews().myText(msg.content, MyColors.c333333, 15);
    } else if (msg.type == chatMsgTypePic) {
      return GestureDetector(
        child: AsperctRaioImage.network(imgURL(msg.content),
            builder: (context, snapshot, url) {
          return MyViews().netImg(
              imgURL(msg.content),
              (snapshot.data.height.toDouble() / 5) /
                  (snapshot.data.width.toDouble() / 5) *
                  150,
              150,
              placeholder: 'images/svg/goodsDefImg.svg');
        }),
        onTap: () {
          MyTools().toPage(
              context, PictureDisplayPage(imgURL(msg.content)), (then) {});
        },
        behavior: HitTestBehavior.translucent,
      );
    } else if (msg.type == chatMsgTypeRedPackage) {
      return Container(
        decoration: BoxDecoration(
          color: Colors.white,
          borderRadius: BorderRadius.circular(4),
        ),
        padding: EdgeInsets.all(14),
        child: Row(
          children: [
            SvgPicture.asset(
              'images/svg/红包.svg',
              width: 29,
              height: 34,
            ),
            Container(
              margin: EdgeInsets.only(left: 7),
              child: Column(
                children: [
                  MyViews().myText(
                      msg.content.split('!@#')[0], MyColors.c333333, 14),
                  MyViews().myText('收款人：${msg.content.split('!@#')[1]}',
                      MyColors.c333333, 11),
                ],
                crossAxisAlignment: CrossAxisAlignment.start,
              ),
            )
          ],
        ),
      );
    }
  }
}