import { FontAwesomeIcon } from "@fortawesome/react-fontawesome";
import { Tooltip } from "@material-ui/core";
import { action } from "mobx";
import { observer } from "mobx-react";
import * as React from 'react';
import { AclAdmin, Doc, DocListCast } from '../../../fields/Doc';
import { Id } from '../../../fields/FieldSymbols';
import { Cast, StrCast } from '../../../fields/Types';
import { GetEffectiveAcl } from "../../../fields/util";
import { Utils } from '../../../Utils';
import { CurrentUserUtils } from "../../util/CurrentUserUtils";
import { DocumentManager } from "../../util/DocumentManager";
import { SelectionManager } from "../../util/SelectionManager";
import { SettingsManager } from "../../util/SettingsManager";
import { SharingManager } from "../../util/SharingManager";
import { undoBatch, UndoManager } from "../../util/UndoManager";
import { ContextMenu } from "../ContextMenu";
import { Borders, Colors } from "../global/globalEnums";
import { MainView } from "../MainView";
import "./TopBar.scss";

/**
 * ABOUT: This is the topbar in Dash, which included the current Dashboard as well as access to information on the user
 * and settings and help buttons. Future scope for this bar is to include the collaborators that are on the same Dashboard. 
 */
@observer
export class TopBar extends React.Component {
      navigateToHome = () => {
            CurrentUserUtils.CaptureDashboardThumbnail()?.then(() => {
                CurrentUserUtils.ActivePage = "home";
                CurrentUserUtils.closeActiveDashboard(); // bcz: if we do this, we need some other way to keep track, for user convenience, of the last dashboard in use
            });
      }
      render() {
            const activeDashboard = CurrentUserUtils.ActiveDashboard;
            return (
                  //TODO:glr Add support for light / dark mode
                  <div style={{ pointerEvents: "all", background: Colors.DARK_GRAY, borderBottom: Borders.STANDARD }} className="topbar-container">
                        <div className="topbar-inner-container">
                              <div className="topbar-left">
                                    {activeDashboard ? <div className="topbar-button-text" onClick={e => {
                                    ContextMenu.Instance.addItem({ description: "Logout", event: () => window.location.assign(Utils.prepend("/logout")), icon: "edit" });
                                    ContextMenu.Instance.displayMenu(e.clientX +5, e.clientY + 10);
                                    }}>{Doc.CurrentUserEmail}</div> : (null)}
                              </div>
                              <div className="topbar-center" >
                                    <div className="topbar-title" onClick={() => activeDashboard && SelectionManager.SelectView(DocumentManager.Instance.getDocumentView(activeDashboard)!, false)}>
                                          {activeDashboard ? StrCast(activeDashboard.title) : "Dash"}
                                    </div>
                                    <div className="topbar-button-icon" onClick={e => {
                                        const dashView = activeDashboard && DocumentManager.Instance.getDocumentView(activeDashboard);
                                        ContextMenu.Instance.addItem({ description: "Open Dashboard View", event: this.navigateToHome, icon: "edit" });
                                        ContextMenu.Instance.addItem({ description: "Snapshot Dashboard", event: async () => {
                                            const batch = UndoManager.StartBatch("snapshot");
                                            await CurrentUserUtils.snapshotDashboard(Doc.UserDoc());
                                            batch.end();
                                        }, icon: "edit" });
                                        dashView?.showContextMenu(e.clientX+20, e.clientY+30);
                                    }}>
                                    <FontAwesomeIcon color="white" size="lg" icon="bars" />
                                    </div>
                                    <Tooltip title={<div className="dash-tooltip">Browsing mode for directly navigating to documents</div>} placement="bottom">
                                        <div className="topbar-icon" style={{ background: MainView.Instance._exploreMode ? Colors.LIGHT_BLUE : undefined }} onClick={action(() => MainView.Instance._exploreMode = !MainView.Instance._exploreMode)}>
                                            <FontAwesomeIcon color={MainView.Instance._exploreMode ? "red":"white"} icon="eye"  size="lg" />
                                        </div>
                                    </Tooltip>
                              </div>
                              <div className="topbar-right" >
                                    <div className="topbar-button-text" onClick={() => {SharingManager.Instance.open(undefined, activeDashboard)}}>
                                        {/* TODO: if this is my dashboard, display share
                                        if this is a shared dashboard, display "view original or view annotated" */}
                                        { CurrentUserUtils.ActiveDashboard && (Doc.GetProto(CurrentUserUtils.ActiveDashboard)?.author ===  Doc.CurrentUserEmail ?  "Share": "view original") }
                                    </div>
                                    <div className="topbar-button-icon" onClick={() => window.open(
                                          "https://brown-dash.github.io/Dash-Documentation/", "_blank")}>
                                          <FontAwesomeIcon icon="question-circle" />
                                    </div>
                                    <div className="topbar-button-icon" onClick={() => SettingsManager.Instance.open()}>
                                          <FontAwesomeIcon icon="cog" />
                                    </div>
                              </div>
                        </div>
                  </div>
                        
            );
      }
}