import 'package:contextmenu/contextmenu.dart';
import 'package:flutter/material.dart';
import 'package:flutter_hbb/common/widgets/peers_view.dart';
import 'package:flutter_hbb/models/ab_model.dart';
import 'package:get/get.dart';
import 'package:provider/provider.dart';

import '../../common.dart';
import '../../desktop/pages/desktop_home_page.dart';
import '../../mobile/pages/settings_page.dart';
import '../../models/platform_model.dart';

class AddressBook extends StatefulWidget {
  final EdgeInsets? menuPadding;
  const AddressBook({Key? key, this.menuPadding}) : super(key: key);

  @override
  State<StatefulWidget> createState() {
    return _AddressBookState();
  }
}

class _AddressBookState extends State<AddressBook> {
  @override
  void initState() {
    super.initState();
    WidgetsBinding.instance.addPostFrameCallback((_) => gFFI.abModel.getAb());
  }

  @override
  Widget build(BuildContext context) => FutureBuilder<Widget>(
      future: buildAddressBook(context),
      builder: (context, snapshot) {
        if (snapshot.hasData) {
          return snapshot.data!;
        } else {
          return const Offstage();
        }
      });

  handleLogin() {
    // TODO refactor login dialog for desktop and mobile
    if (isDesktop) {
      loginDialog().then((success) {
        if (success) {
          setState(() {});
        }
      });
    } else {
      showLogin(gFFI.dialogManager);
    }
  }

  Future<Widget> buildAddressBook(BuildContext context) async {
    final token = await bind.mainGetLocalOption(key: 'access_token');
    if (token.trim().isEmpty) {
      return Center(
        child: InkWell(
          onTap: handleLogin,
          child: Text(
            translate("Login"),
            style: const TextStyle(decoration: TextDecoration.underline),
          ),
        ),
      );
    }
    final model = gFFI.abModel;
    return FutureBuilder(
        future: model.getAb(),
        builder: (context, snapshot) {
          if (snapshot.hasData) {
            return _buildAddressBook(context);
          } else if (snapshot.hasError) {
            return Column(
              mainAxisAlignment: MainAxisAlignment.center,
              children: [
                Text(translate("${snapshot.error}")),
                TextButton(
                    onPressed: () {
                      setState(() {});
                    },
                    child: Text(translate("Retry")))
              ],
            );
          } else {
            if (model.abLoading) {
              return const Center(
                child: CircularProgressIndicator(),
              );
            } else if (model.abError.isNotEmpty) {
              return Center(
                child: Column(
                  mainAxisAlignment: MainAxisAlignment.center,
                  children: [
                    Text(translate(model.abError)),
                    TextButton(
                        onPressed: () {
                          setState(() {});
                        },
                        child: Text(translate("Retry")))
                  ],
                ),
              );
            } else {
              return const Offstage();
            }
          }
        });
  }

  Widget _buildAddressBook(BuildContext context) {
    return Consumer<AbModel>(
        builder: (context, model, child) => Row(
              children: [
                Card(
                  shape: RoundedRectangleBorder(
                      borderRadius: BorderRadius.circular(20),
                      side: BorderSide(
                          color: Theme.of(context).scaffoldBackgroundColor)),
                  child: Container(
                    width: 200,
                    height: double.infinity,
                    padding: const EdgeInsets.symmetric(
                        horizontal: 12.0, vertical: 8.0),
                    child: Column(
                      children: [
                        Row(
                          mainAxisAlignment: MainAxisAlignment.spaceBetween,
                          children: [
                            Text(translate('Tags')),
                            InkWell(
                              child: PopupMenuButton(
                                  itemBuilder: (context) => [
                                        PopupMenuItem(
                                          value: 'add-id',
                                          child: Text(translate("Add ID")),
                                        ),
                                        PopupMenuItem(
                                          value: 'add-tag',
                                          child: Text(translate("Add Tag")),
                                        ),
                                        PopupMenuItem(
                                          value: 'unset-all-tag',
                                          child: Text(
                                              translate("Unselect all tags")),
                                        ),
                                      ],
                                  onSelected: handleAbOp,
                                  child: const Icon(Icons.more_vert_outlined)),
                            )
                          ],
                        ),
                        Expanded(
                          child: Container(
                            width: double.infinity,
                            height: double.infinity,
                            decoration: BoxDecoration(
                                border: Border.all(color: MyTheme.darkGray)),
                            child: Obx(
                              () => Wrap(
                                children: gFFI.abModel.tags
                                    .map((e) =>
                                        buildTag(e, gFFI.abModel.selectedTags,
                                            onTap: () {
                                          //
                                          if (gFFI.abModel.selectedTags
                                              .contains(e)) {
                                            gFFI.abModel.selectedTags.remove(e);
                                          } else {
                                            gFFI.abModel.selectedTags.add(e);
                                          }
                                        }))
                                    .toList(),
                              ),
                            ),
                          ).marginSymmetric(vertical: 8.0),
                        )
                      ],
                    ),
                  ),
                ).marginOnly(right: 8.0),
                Expanded(
                  child: Align(
                      alignment: Alignment.topLeft,
                      child: AddressBookPeersView(
                        menuPadding: widget.menuPadding,
                      )),
                )
              ],
            ));
  }

  Widget buildTag(String tagName, RxList<dynamic> rxTags, {Function()? onTap}) {
    return ContextMenuArea(
      width: 100,
      builder: (context) => [
        ListTile(
          title: Text(translate("Delete")),
          onTap: () {
            gFFI.abModel.deleteTag(tagName);
            gFFI.abModel.updateAb();
            Future.delayed(Duration.zero, () => Get.back());
          },
        )
      ],
      child: GestureDetector(
        onTap: onTap,
        child: Obx(
          () => Container(
            decoration: BoxDecoration(
                color: rxTags.contains(tagName) ? Colors.blue : null,
                border: Border.all(color: MyTheme.darkGray),
                borderRadius: BorderRadius.circular(10)),
            margin: const EdgeInsets.symmetric(horizontal: 4.0, vertical: 8.0),
            padding: const EdgeInsets.symmetric(vertical: 2.0, horizontal: 8.0),
            child: Text(
              tagName,
              style: TextStyle(
                  color:
                      rxTags.contains(tagName) ? Colors.white : null), // TODO
            ),
          ),
        ),
      ),
    );
  }

  /// tag operation
  void handleAbOp(String value) {
    if (value == 'add-id') {
      abAddId();
    } else if (value == 'add-tag') {
      abAddTag();
    } else if (value == 'unset-all-tag') {
      gFFI.abModel.unsetSelectedTags();
    }
  }

  void abAddId() async {
    var field = "";
    var msg = "";
    var isInProgress = false;
    TextEditingController controller = TextEditingController(text: field);

    gFFI.dialogManager.show((setState, close) {
      submit() async {
        setState(() {
          msg = "";
          isInProgress = true;
        });
        field = controller.text.trim();
        if (field.isEmpty) {
          // pass
        } else {
          final ids = field.trim().split(RegExp(r"[\s,;\n]+"));
          field = ids.join(',');
          for (final newId in ids) {
            if (gFFI.abModel.idContainBy(newId)) {
              continue;
            }
            gFFI.abModel.addId(newId);
          }
          await gFFI.abModel.updateAb();
          this.setState(() {});
          // final currentPeers
        }
        close();
      }

      return CustomAlertDialog(
        title: Text(translate("Add ID")),
        content: Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            Text(translate("whitelist_sep")),
            const SizedBox(
              height: 8.0,
            ),
            Row(
              children: [
                Expanded(
                  child: TextField(
                      maxLines: null,
                      decoration: InputDecoration(
                        border: const OutlineInputBorder(),
                        errorText: msg.isEmpty ? null : translate(msg),
                      ),
                      controller: controller,
                      focusNode: FocusNode()..requestFocus()),
                ),
              ],
            ),
            const SizedBox(
              height: 4.0,
            ),
            Offstage(
                offstage: !isInProgress, child: const LinearProgressIndicator())
          ],
        ),
        actions: [
          TextButton(onPressed: close, child: Text(translate("Cancel"))),
          TextButton(onPressed: submit, child: Text(translate("OK"))),
        ],
        onSubmit: submit,
        onCancel: close,
      );
    });
  }

  void abAddTag() async {
    var field = "";
    var msg = "";
    var isInProgress = false;
    TextEditingController controller = TextEditingController(text: field);
    gFFI.dialogManager.show((setState, close) {
      submit() async {
        setState(() {
          msg = "";
          isInProgress = true;
        });
        field = controller.text.trim();
        if (field.isEmpty) {
          // pass
        } else {
          final tags = field.trim().split(RegExp(r"[\s,;\n]+"));
          field = tags.join(',');
          for (final tag in tags) {
            gFFI.abModel.addTag(tag);
          }
          await gFFI.abModel.updateAb();
          // final currentPeers
        }
        close();
      }

      return CustomAlertDialog(
        title: Text(translate("Add Tag")),
        content: Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            Text(translate("whitelist_sep")),
            const SizedBox(
              height: 8.0,
            ),
            Row(
              children: [
                Expanded(
                  child: TextField(
                    maxLines: null,
                    decoration: InputDecoration(
                      border: const OutlineInputBorder(),
                      errorText: msg.isEmpty ? null : translate(msg),
                    ),
                    controller: controller,
                    focusNode: FocusNode()..requestFocus(),
                  ),
                ),
              ],
            ),
            const SizedBox(
              height: 4.0,
            ),
            Offstage(
                offstage: !isInProgress, child: const LinearProgressIndicator())
          ],
        ),
        actions: [
          TextButton(onPressed: close, child: Text(translate("Cancel"))),
          TextButton(onPressed: submit, child: Text(translate("OK"))),
        ],
        onSubmit: submit,
        onCancel: close,
      );
    });
  }

  void abEditTag(String id) {
    var isInProgress = false;

    final tags = List.of(gFFI.abModel.tags);
    var selectedTag = gFFI.abModel.getPeerTags(id).obs;

    gFFI.dialogManager.show((setState, close) {
      submit() async {
        setState(() {
          isInProgress = true;
        });
        gFFI.abModel.changeTagForPeer(id, selectedTag);
        await gFFI.abModel.updateAb();
        close();
      }

      return CustomAlertDialog(
        title: Text(translate("Edit Tag")),
        content: Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            Container(
              padding:
                  const EdgeInsets.symmetric(horizontal: 16.0, vertical: 8.0),
              child: Wrap(
                children: tags
                    .map((e) => buildTag(e, selectedTag, onTap: () {
                          if (selectedTag.contains(e)) {
                            selectedTag.remove(e);
                          } else {
                            selectedTag.add(e);
                          }
                        }))
                    .toList(growable: false),
              ),
            ),
            Offstage(
                offstage: !isInProgress, child: const LinearProgressIndicator())
          ],
        ),
        actions: [
          TextButton(onPressed: close, child: Text(translate("Cancel"))),
          TextButton(onPressed: submit, child: Text(translate("OK"))),
        ],
        onSubmit: submit,
        onCancel: close,
      );
    });
  }
}