//
// Copyright (C) Stanislaw Adaszewski, 2020
// Contact: s.adaszewski@gmail.com
// Website: https://adared.ch/wba
// License: GNU Affero General Public License, Version 3
//

import { h, Component, createRef } from 'preact';
import { route } from 'preact-router';
import WBNavbarCommon from 'wb-navbar-common';
import WBProjectListing from 'wb-project-listing';
import WBInlineSearch from 'wb-inline-search';
import WBArvadosCrumbs from 'wb-arvados-crumbs';
import WBTabs from 'wb-tabs';
import WBProcessListing from 'wb-process-listing';
import WBCollectionListing from 'wb-collection-listing';
import WBWorkflowListing from 'wb-workflow-listing';
import WBRenameDialog from 'wb-rename-dialog';
import WBDeleteDialog from 'wb-delete-dialog';
import WBNewProjectDialog from 'wb-new-project-dialog';
import WBEditDescriptionDialog from 'wb-edit-description-dialog';
import wbMoveObject from 'wb-move-object';
import wbCopyCollection from 'wb-copy-collection';
import arvadosTypeName from 'arvados-type-name';

class WBBrowseProjectTabs extends Component {
  render({ ownerUuid, selected, newProjectDialogRef, projectListingRef,
    moveHere, copyHere }) {

    return (
      <WBTabs tabs={ [
        { 'name': 'Projects', 'isActive': true },
        ownerUuid ? { 'name': ( <span><i class="fas fa-plus-square text-success"></i> New Project</span> ),
          'onClick': () => newProjectDialogRef.current.show(ownerUuid,
            () => projectListingRef.current.fetchItems() ) } : null,
        ( ownerUuid && Object.keys(selected).length > 0 ) ?
          { 'name': ( <span><i class="fas fa-compress-arrows-alt text-warning"></i> Move Here</span> ),
            'onClick': moveHere } : null,
        ( ownerUuid && (uuids => uuids.length > 0 && uuids.length ===
          uuids.map(arvadosTypeName).filter(a => (a === 'collection')).length )(Object.keys(selected)) ) ?
          { 'name': ( <span><i class="fas fa-file-import text-warning"></i> Copy Here</span> ),
            'onClick': copyHere } : null
      ] } />
    );
  }
}

class WBBrowse extends Component {
  constructor(...args) {
    super(...args);
    this.renameDialogRef = createRef();
    this.deleteDialogRef = createRef();
    this.newProjectDialogRef = createRef();
    this.projectListingRef = createRef();
    this.projectTabsRef = createRef();
    this.editDescriptionDialogRef = createRef();
    this.state.selected = {};
  }

  getUrl(params) {
    const mode = ('mode' in params ? params.mode : this.props.mode);

    if (mode === 'shared-with-me')
      return '/shared-with-me/' +
        ('activePage' in params ? params.activePage : (this.props.activePage || '')) + '/' +
        ('textSearch' in params ? params.textSearch : (this.props.textSearch || ''));

    let res = '/browse/' +
      ('ownerUuid' in params ? params.ownerUuid : (this.props.ownerUuid || '')) + '/' +
      ('activePage' in params ? params.activePage : (this.props.activePage || '')) + '/' +
      ('objTypeTab' in params ? params.objTypeTab : (this.props.objTypeTab || '')) + '/' +
      ('collectionPage' in params ? params.collectionPage : (this.props.collectionPage || '')) + '/' +
      ('processPage' in params ? params.processPage : (this.props.processPage || '')) + '/' +
      ('workflowPage' in params ? params.workflowPage : (this.props.workflowPage || '')) + '/' +
      encodeURIComponent('textSearch' in params ? params.textSearch : (this.props.textSearch || ''));

    return res;
  }

  route(params) {
    route(this.getUrl(params));
  }

  renameDialog(item, callback) {
    // throw Error('Not implemented');
    this.renameDialogRef.current.show(item, callback);
  }

  renderRenameLink(item, callback) {
    return (
      <a href="#" title="Rename" onclick={ e => { e.preventDefault(); this.renameDialog(item, callback); } }>
        <i class="fas fa-edit text-secondary"></i>
      </a>
    );
  }

  renderEditDescription(item, callback) {
    return (
      <a href="#" title="Edit description" onclick={ e => { e.preventDefault();
        this.editDescriptionDialogRef.current.show(item, callback); } }>

        <i class="fas fa-edit text-secondary"></i>
      </a>
    );
  }

  renderDeleteButton(item, callback) {
    return (
      <button class="btn btn-outline-danger m-1" title="Delete"
        onclick={ () => this.deleteDialogRef.current.show(item, callback) }>
        <i class="fas fa-trash"></i>
      </button>
    );
  }

  renderSelectionCell(item) {
    const { selected } = this.state;
    const { uuid } = item;
    return (
      <div>
        <input type="checkbox" checked={ (uuid in selected) }
          onChange={ e => {
          if (e.target.checked)
            selected[uuid] = true;
          else
            delete selected[uuid];
          this.projectTabsRef.current.setState({});
        } } /> { '\u00A0' }
      </div>
    );
  }

  renderSharingButton(item) {
    return (
      <a class="btn btn-outline-success m-1" title="Share"
        href={ '/sharing/' + item.uuid }>
        <i class="fas fa-share-alt"></i>
      </a>
    );
  }

  moveOrCopyOp(op) {
    const { ownerUuid, app } = this.props;
    const { selected } = this.state;
    const { arvHost, arvToken } = app.state;
    let prom = new Promise(accept => accept());
    const uuids = Object.keys(selected);
    for (let i = 0; i < uuids.length; i++) {
      prom = prom.then(() => op(arvHost, arvToken, uuids[i], ownerUuid));
      prom = prom.then(() => ( delete selected[uuids[i]] ));
      prom = prom.catch(() => {});
    }
    prom = prom.then(() => this.setState({}));
  }

  moveHere() {
    this.moveOrCopyOp(wbMoveObject);
  }

  copyHere() {
    this.moveOrCopyOp(wbCopyCollection);
  }

  render({ mode, ownerUuid, activePage, app,
    objTypeTab, collectionPage, processPage, workflowPage,
    textSearch }, { selected }) {

    const commonProps = {
      renderRenameLink: (it, cb) => this.renderRenameLink(it, cb),
      renderEditDescription: (it, cb) => this.renderEditDescription(it, cb),
      renderDeleteButton: (it, cb) => this.renderDeleteButton(it, cb),
      renderSelectionCell: it => this.renderSelectionCell(it),
      renderSharingButton: it => this.renderSharingButton(it),
      textSearch,
      app,
      appState: app.state,
      arvHost: app.state.arvHost,
      arvToken: app.state.arvToken,
      ownerUuid
    };

    const { currentUser } = app.state;
    const noDefaultTab = (!ownerUuid || ownerUuid === currentUser.uuid);

    return (
      <div>
        <WBRenameDialog app={ app } ref={ this.renameDialogRef } />

        <WBDeleteDialog app={ app } ref={ this.deleteDialogRef } />

        <WBNewProjectDialog app={ app } ref={ this.newProjectDialogRef } />

        <WBEditDescriptionDialog app={ app } ref={ this.editDescriptionDialogRef } />

        <WBNavbarCommon app={ app }
          activeItem={ mode === 'shared-with-me' ? 'shared-with-me' :
            (!ownerUuid) ? 'all-projects' :
            (ownerUuid === app.state.currentUser.uuid) ? 'home' : null }
          textSearch={ textSearch }
          textSearchNavigate={ textSearch => route(this.getUrl({ textSearch,
            activePage: 0, collectionPage: 0, processPage: 0, workflowPage: 0 })) } />

        <WBArvadosCrumbs mode={ mode } uuid={ ownerUuid } app={ app } />

        <WBBrowseProjectTabs ref={ this.projectTabsRef } ownerUuid={ ownerUuid }
          selected={ selected } newProjectDialogRef={ this.newProjectDialogRef }
          projectListingRef={ this.projectListingRef } moveHere={ () => this.moveHere() }
          copyHere={ () => this.copyHere() } />

        <WBProjectListing ref={ this.projectListingRef }
          mode={ mode }
          itemsPerPage="5"
          activePage={ Number(activePage || 0) }
          getPageUrl={ i => this.getUrl({ 'activePage': i }) }
          { ...commonProps } />

        { (mode !== 'browse') ? null : (
          <WBTabs tabs={ [
            { 'id': 'collection', 'name': 'Collections', 'isActive': ((!objTypeTab && !noDefaultTab) || objTypeTab === 'collection') },
            { 'id': 'process', 'name': 'Processes', 'isActive': (objTypeTab === 'process') },
            { 'id': 'workflow', 'name': 'Workflows', 'isActive': (objTypeTab === 'workflow') } ] }
            onTabChanged={ tab => this.route({ 'objTypeTab': tab['id'] }) } />
        ) }

        {
          (mode !== 'browse') ? null :
          ((!objTypeTab && !noDefaultTab) || objTypeTab === 'collection') ? (
            <WBCollectionListing
              itemsPerPage="20"
              activePage={ Number(collectionPage || 0) }
              getPageUrl={ i => this.getUrl({ 'collectionPage': i }) }
              { ...commonProps } />

          ) : (objTypeTab === 'process') ? (
            <WBProcessListing
              itemsPerPage="20"
              activePage={ Number(processPage || 0) }
              onPageChanged={ i => this.route({ 'processPage': i }) }
              { ...commonProps } />

          ) : (objTypeTab === 'workflow') ? (
            <WBWorkflowListing
              itemsPerPage="20"
              page={ Number(workflowPage || 0) }
              getPageUrl={ i => this.getUrl({ 'workflowPage': i }) }
              { ...commonProps } />

          ) : null
        }
      </div>
    );
  }
}

export default WBBrowse;