import 'dart:async';

import 'package:flutter/material.dart';
import 'package:go_router/go_router.dart';
import 'package:oc_front/core/models/shared_workspace_local.dart';
import 'package:oc_front/core/models/workspace_local.dart';
import 'package:oc_front/core/sections/header/header.dart';
import 'package:oc_front/core/services/perms_service.dart';
import 'package:oc_front/core/services/router.dart';
import 'package:oc_front/core/services/specialized_services/peer_service.dart';
import 'package:oc_front/core/services/specialized_services/shared_service.dart';
import 'package:oc_front/core/services/specialized_services/workflow_service.dart';
import 'package:oc_front/main.dart';
import 'package:oc_front/models/response.dart';
import 'package:oc_front/models/shared.dart';
import 'package:oc_front/pages/abstract_page.dart';
import 'package:oc_front/widgets/catalog.dart';
import 'package:oc_front/widgets/dialog/shallow_creation.dart';
import 'package:oc_front/widgets/inputs/shallow_text_input.dart';
import 'package:oc_front/widgets/items/shallow_item_row.dart';
import 'package:oc_front/widgets/inputs/shallow_dropdown_input.dart';

enum CollaborativeAreaType { global, collaborative_area, workspace, workflow, peer, resource }

class  SharedFactory implements AbstractFactory {
  @override GlobalKey getKey() { return key; }
  @override void clear() { }
  static GlobalKey<SharedPageWidgetState> key = GlobalKey<SharedPageWidgetState>();
  @override bool searchFill() { return false; }
  @override Widget factory(GoRouterState state, List<String> args) { return SharedPageWidget(); }
  @override void search(BuildContext context, bool special) { }
}

class SharedPageWidget extends StatefulWidget {
  CollaborativeAreaType type = CollaborativeAreaType.global;
  SharedPageWidget(): super(key: SharedFactory.key);
  @override SharedPageWidgetState createState() => SharedPageWidgetState();
  static void search(BuildContext context) { }
  static Widget factory() { return SharedPageWidget(); }
}
class SharedPageWidgetState extends State<SharedPageWidget> {
  SharedService service = SharedService();
  Widget getMenuItem(CollaborativeAreaType workspaceType, IconData icon) {
    var s = workspaceType == CollaborativeAreaType.global ? "dashboard" : workspaceType == CollaborativeAreaType.workspace ? "shared workspaces" : workspaceType == CollaborativeAreaType.workflow ? "shared workflows" : "peers engaged";
    return Tooltip( message: s,
      child: InkWell( mouseCursor: SystemMouseCursors.click,
        onTap: () => setState(() {
          widget.type = workspaceType;
        }),
        child: Container( width: 50, height: 50,
        color: widget.type == workspaceType ? darkColor : Colors.transparent,
        padding: const EdgeInsets.symmetric(vertical: 10), 
        child : Icon(icon, 
          color: widget.type == workspaceType ? Colors.white : Colors.white, size: 20))));
  }

  @override Widget build(BuildContext context) {
    GlobalKey<ShallowTextInputWidgetState> key = GlobalKey<ShallowTextInputWidgetState>();
    if (CollaborativeAreaLocal.current == null) { 
      Future.delayed( const Duration(microseconds: 100), () {
        HeaderConstants.setTitle("Choose a Collaborative Area");
        HeaderConstants.setDescription("select a shared workspace to continue");
      });
      Future.delayed( const Duration(milliseconds: 100), () {
        showDialog(
          barrierDismissible: false,
          context: context, builder: (BuildContext ctx) => AlertDialog(
            titlePadding: EdgeInsets.zero,
            insetPadding: EdgeInsets.zero,
            backgroundColor: Colors.white,
            shape: RoundedRectangleBorder( borderRadius: BorderRadius.circular(0)),
            title: ShallowCreationDialogWidget(
              formKey: key,
              canClose: () => CollaborativeAreaLocal.current != null,
              context: context,
              load: (p0) async {
                CollaborativeAreaLocal.current = p0;
                HeaderConstants.setTitle("Collaborative Area <${CollaborativeAreaLocal.workspaces[CollaborativeAreaLocal.current]?.name ?? ""}>");
                HeaderConstants.setDescription(CollaborativeAreaLocal.workspaces[CollaborativeAreaLocal.current]?.description ?? "");
                Future.delayed(const Duration(seconds: 1), () => SharedFactory.key.currentState?.setState(() {}));
              },
              form: [
                ShallowTextInputWidget(
                  change :(p0) => key.currentState?.setState(() {}),
                  canLoad: (po) => po != null && po.isNotEmpty,
                  type: CollaborativeAreaType.collaborative_area,
                  width: getMainWidth(context) <= 540 ? getMainWidth(context) - 140 : 400,
                  attr: "description",
                  color: Colors.black,
                  hintColor: Colors.grey,
                  hint: "enter collaborative area description...",
                  filled: midColor,
                )
              ],
              create: PermsService.getPerm(Perms.COLLABORATIVE_AREA_CREATE) ? (p0) async => await SharedService().post(context, p0, {}).then((value) {
                if (value.data != null) {
                    CollaborativeAreaLocal.current = value.data!.id;
                }
                CollaborativeAreaLocal.init(context, true);

                HeaderConstants.setTitle("Collaborative Area <${CollaborativeAreaLocal.workspaces[CollaborativeAreaLocal.current]?.name ?? ""}>");
                HeaderConstants.setDescription(CollaborativeAreaLocal.workspaces[CollaborativeAreaLocal.current]?.description ?? "");
                Future.delayed(const Duration(seconds: 1), () => SharedFactory.key.currentState?.setState(() {}));
              }) : null,
              type: CollaborativeAreaType.collaborative_area,
              all: () async => CollaborativeAreaLocal.workspaces.values.map( 
                (e) => Shallow(id: e.id ?? "", name: e.name ?? "") ).toList(),
            )));
      });
    } else {
      Future.delayed( const Duration(milliseconds: 100), () {
        HeaderConstants.setTitle("Collaborative Area <${CollaborativeAreaLocal.workspaces[CollaborativeAreaLocal.current]?.name ?? ""}>");
        HeaderConstants.setDescription(CollaborativeAreaLocal.workspaces[CollaborativeAreaLocal.current]?.description ?? "");
      });
    }
    Widget w = WorkspaceSharedPageWidget(type: widget.type);
    List<Widget> addMenu = [];
    CollaborativeArea? current = CollaborativeAreaLocal.workspaces[CollaborativeAreaLocal.current ?? ""];
    if (widget.type == CollaborativeAreaType.workspace) {
      addMenu.add( Row( mainAxisAlignment: MainAxisAlignment.end,
        children : [ Container( padding: EdgeInsets.only(left: 20), decoration: BoxDecoration(
          border: Border(left: BorderSide(color: Colors.white))
        ), child: ShallowDropdownInputWidget( 
          tooltipLoad: "share",
          tooltipRemove: "unshare",
          iconLoad: Icons.share,
          type: widget.type, 
          filled: lightColor,
          hintColor: midColor,
          color: Colors.white,
          prefixIcon: Icon(Icons.shopping_cart, color: Colors.white),
          current: WorkspaceLocal.current,
          all: () async => WorkspaceLocal.getWorkspacesShallow(),
          width: getMainWidth(context) / 3,
          canLoad: (String? change) => current == null || !current.workspaces.map( (e) => e.id ).contains(change),
          canRemove: (String? change) => current == null || current.workspaces.map( (e) => e.id ).contains(change), 
          load: (String val) async {
            await service.addWorkspace(context, CollaborativeAreaLocal.current ?? "", val);
            CollaborativeAreaLocal.init(context, false);
          },
          remove: (String val) async {
            await service.removeWorkspace(context, CollaborativeAreaLocal.current ?? "", val);
            CollaborativeAreaLocal.init(context, false);
          }))
      ]));
    }
    if (widget.type == CollaborativeAreaType.workflow) {
      addMenu.add( Row( mainAxisAlignment: MainAxisAlignment.end,
        children : [ Container( padding: EdgeInsets.only(left: 20), decoration: BoxDecoration(
          border: Border(left: BorderSide(color: Colors.white))
        ), child: ShallowDropdownInputWidget( 
          tooltipLoad: "share",
          tooltipRemove: "unshare",
          iconLoad: Icons.share,
          filled: lightColor,
          hintColor: midColor,
          color: Colors.white,
          type: widget.type, all: () async {
            List<Shallow> shals = [];
            await WorflowService().all(context).then((value) {
                if (value.data != null) {
                  shals = value.data!.values.map((e) => Shallow(id: e["id"], name: e["name"])).toList();
                }
              });
            return shals;
          },
          width: getMainWidth(context) / 3,
          canLoad: (String? change) => current == null || !current.workflows.map( (e) => e.id ).contains(change),
          canRemove: (String? change) => current == null || current.workflows.map( (e) => e.id ).contains(change), 
          load: (String change) async {
            await service.addWorkflow(context, CollaborativeAreaLocal.current ?? "", change);
          },
          remove: (String change) async {
            await service.removeWorkflow(context, CollaborativeAreaLocal.current ?? "", change);
          }))
      ]));
    }
    if (widget.type == CollaborativeAreaType.peer) {
      addMenu.add( Row( mainAxisAlignment: MainAxisAlignment.end,
        children : [
        Container( padding: EdgeInsets.only(left: 20), decoration: BoxDecoration(
          border: Border(left: BorderSide(color: Colors.white))
        ), child: ShallowDropdownInputWidget( 
          tooltipLoad: "add",
          iconLoad: Icons.add,
          filled: lightColor,
          hintColor: midColor,
          color: Colors.white,
          type: widget.type, all: () async {
            List<Shallow> shals = [];
            await PeerService().all(context).then((value) {
                if (value.data != null) {
                  shals = value.data!.values.map((e) => Shallow(id: e["id"], name: e["name"])).toList();
                }
              });
            return shals;
          },
          width: getMainWidth(context) / 3,
          canLoad: (String? change) => current == null || !current.peers.map( (e) => e.id ).contains(change),
          canRemove: (String? change) => current == null || current.peers.map( (e) => e.id ).contains(change), 
          load: (String change) async {
            await service.addPeer(context, CollaborativeAreaLocal.current ?? "", change);
          },
          remove: (String change) async {
            await service.removePeer(context, CollaborativeAreaLocal.current ?? "", change);
          }))
      ]));
    }
    return Column( children: [ 
        Container(
          height: 50,
          color: lightColor,
          width: getMainWidth(context),
          padding: const EdgeInsets.only(left: 50),
          child: Stack( alignment: Alignment.centerLeft, children: [
                          Tooltip( message: "open file", child: Padding( padding: const EdgeInsets.only(right: 15), 
                            child: InkWell( mouseCursor: SystemMouseCursors.click,
                              onTap: () {
                                showDialog(
                                    barrierDismissible: false,
                                    context: context, builder: (context) {
                                    return AlertDialog(
                                      titlePadding: EdgeInsets.zero,
                                      insetPadding: EdgeInsets.zero,
                                      backgroundColor: Colors.white,
                                      shape: RoundedRectangleBorder( borderRadius: BorderRadius.circular(0)),
                                      title: ShallowCreationDialogWidget(
                                        formKey: key,
                                        canClose: () => CollaborativeAreaLocal.current != null,
                                        context: context,
                                        load: (p0) async {
                                          CollaborativeAreaLocal.current = p0;
                                          HeaderConstants.setTitle("Collaborative Area <${CollaborativeAreaLocal.workspaces[CollaborativeAreaLocal.current]?.name ?? ""}>");
                                          HeaderConstants.setDescription(CollaborativeAreaLocal.workspaces[CollaborativeAreaLocal.current]?.description ?? "");
                                          Future.delayed(const Duration(seconds: 1), () => SharedFactory.key.currentState?.setState(() {}));
                                        },
                                        form: [
                                          ShallowTextInputWidget(
                                            change :(p0) => key.currentState?.setState(() {}),
                                            type: CollaborativeAreaType.collaborative_area,
                                            width: getMainWidth(context) <= 540 ? getMainWidth(context) - 140 : 400,
                                            attr: "description",
                                            color: Colors.black,
                                            hintColor: Colors.grey,
                                            filled: midColor,
                                          )
                                        ],
                                        create: PermsService.getPerm(Perms.COLLABORATIVE_AREA_CREATE) ? (p0) async => await SharedService().post(context, p0, {}).then( (e) {
                                          if (e.data != null) {
                                            CollaborativeAreaLocal.current = e.data!.id;
                                          }
                                          CollaborativeAreaLocal.init(context, true);

                                          HeaderConstants.setTitle("Collaborative Area <${CollaborativeAreaLocal.workspaces[CollaborativeAreaLocal.current]?.name ?? ""}>");
                                          HeaderConstants.setDescription(CollaborativeAreaLocal.workspaces[CollaborativeAreaLocal.current]?.description ?? "");
                                          Future.delayed(const Duration(seconds: 1), () => SharedFactory.key.currentState?.setState(() {}));
                                        }) : null,
                                        type: CollaborativeAreaType.collaborative_area,
                                        all: () async => CollaborativeAreaLocal.workspaces.values.map( 
                                          (e) => Shallow(id: e.id ?? "", name: e.name ?? "") ).toList(),
                                      ));
                                  });
                              }, 
                              child: const Icon(Icons.folder_open, color: Colors.white)))),
                              Positioned( right: 0, child: Row( children: addMenu))
                        ])),
        Row( 
        children: [
          Container(
            decoration: BoxDecoration(
              color: Colors.black,
              border: Border(left: BorderSide(color: lightColor))
            ),
            height: getMainHeight(context) - 50,
            width: 50,
            child: Column(
              children: [
                getMenuItem(CollaborativeAreaType.global, Icons.dashboard),
                getMenuItem(CollaborativeAreaType.workspace, Icons.workspaces),
                getMenuItem(CollaborativeAreaType.workflow, Icons.rebase_edit),
                getMenuItem(CollaborativeAreaType.peer, Icons.group),
              ])
          ),
          Container( 
            height: getMainHeight(context)  - 50,
            width:  getMainWidth(context) -50,
            color: widget.type == CollaborativeAreaType.workflow || widget.type == CollaborativeAreaType.peer ? midColor : Colors.white,
            child: SingleChildScrollView( child: w ))
        ]
      ) ]
    );
  }
}

class WorkspaceSharedPageWidget extends StatefulWidget {
  CollaborativeAreaType type = CollaborativeAreaType.global;
  WorkspaceSharedPageWidget({ required this.type }): super(key: null);
  @override WorkspaceSharedPageWidgetState createState() => WorkspaceSharedPageWidgetState();
}
class WorkspaceSharedPageWidgetState extends State<WorkspaceSharedPageWidget> {

  @override Widget build(BuildContext context) {
    if (CollaborativeAreaLocal.current == null) { 
      return Container();
    }
    var space = CollaborativeAreaLocal.workspaces[CollaborativeAreaLocal.current ?? ""]!;
    List<Widget> items = [];
    List<ShallowData> data = [];
    if (widget.type == CollaborativeAreaType.global) {
    } else if (widget.type == CollaborativeAreaType.workspace) {
      data = space.workspaces;
    } else if (widget.type == CollaborativeAreaType.workflow) {
      data = space.workflows;
    } else if (widget.type == CollaborativeAreaType.peer) {
      data = space.peers;
    }
    var current = CollaborativeAreaLocal.workspaces[CollaborativeAreaLocal.current];
    for (var w in data) {
      if (widget.type == CollaborativeAreaType.workspace) {
        if (WorkspaceLocal.workspaces[w.getID()] == null) { continue; }
        items.add(WorkspaceSharedItemPageWidget(name: "Workspace <${WorkspaceLocal.workspaces[w.getID()]!.name}>", id: w.getID()));
      } else if (widget.type == CollaborativeAreaType.workflow || widget.type == CollaborativeAreaType.peer) {
        List<IconData> badges = [];
        if (widget.type == CollaborativeAreaType.peer && w.getID() == current?.creatorID) {
          badges.add(Icons.star);
        }
        items.add(ShallowItemRowWidget(
          item: w, badges: badges,
          edit: widget.type == CollaborativeAreaType.workflow ? (String? change) {
              if (change != null) {
                WorkspaceLocal.changeWorkspaceByName(change.split("~")[1]);  
              }
              Future.delayed(const Duration(seconds: 1), () => AppRouter.workflowIDItem.go(context, { "id": change ?? "" }));
            } : null,
          delete: (String? change) async {
            if (change == null) { return; }
            if (widget.type == CollaborativeAreaType.peer) {
              await SharedService().removePeer(context, CollaborativeAreaLocal.current ?? "", change);
            } else {
              await SharedService().removePeer(context, CollaborativeAreaLocal.current ?? "", change);
            }
          },
          icon: widget.type == CollaborativeAreaType.workflow ? Icons.work_history_rounded : Icons.person,
          contextWidth: 200)
        );
      }
     }
     if (items.isEmpty) {
        return Container( 
          color: midColor,
          height: getMainHeight(context) - 50,
          width: getMainWidth(context) - 50,
          alignment: Alignment.center,
          padding: const EdgeInsets.all(50),
          child: Text("NO ITEMS SHARED", style: const TextStyle(fontSize: 25, fontWeight: FontWeight.w600, color: Colors.white)));
     }
     if (widget.type == CollaborativeAreaType.workflow || widget.type == CollaborativeAreaType.peer) {
      return Padding( 
        padding: const EdgeInsets.all(50),
        child: Stack( alignment: Alignment.topLeft, children : items));
     }
    return Column( mainAxisAlignment: MainAxisAlignment.start, children : items);
  }
}

class WorkspaceSharedItemPageWidget extends StatefulWidget {
  bool open = true;
  String id = "";
  String name = "";
  WorkspaceSharedItemPageWidget({ this.name = "", this.id = "" }): super(key: null);
  @override WorkspaceSharedItemPageWidgetState createState() => WorkspaceSharedItemPageWidgetState();
}
class WorkspaceSharedItemPageWidgetState extends State<WorkspaceSharedItemPageWidget> {
    @override Widget build(BuildContext context) {
      return Column( children: [
        Container( 
          width: getMainWidth(context) - 50,
            height: 50,
            padding: const EdgeInsets.symmetric(horizontal: 20),
            decoration: BoxDecoration(color: midColor),
            child: Stack( 
                alignment: Alignment.centerLeft,
                children: [
                  Row( 
                    children: [
                      const Padding(padding: EdgeInsets.only(right: 20), child: Icon(Icons.shopping_cart_outlined, size: 18, color: Colors.white)),
                    Text(widget.name, 
                      style: const TextStyle(fontSize: 15, color: Colors.white, fontWeight: FontWeight.w600)),
                    ]
                  ),
                  Positioned( right: 0, top: 5, child: IconButton( icon: Icon(widget.open ? Icons.arrow_drop_up : Icons.arrow_drop_down, color: Colors.white),
                    onPressed: () => setState(() {
                      widget.open = !widget.open;
                  })))
              ])
            ),
          widget.open ? CatalogWidget(itemWidth: getMainWidth(context) - 50, 
          items: WorkspaceLocal.byWorkspace(widget.id)) : Container()
        ]);
    }
}