import React, { Component, Fragment } from 'react';
import { Button } from 'reactstrap';
import moment from 'moment';
import { Utils } from '../../../utils/utils';
import { seafileAPI } from '../../../utils/seafile-api';
import { siteRoot, loginUrl, gettext, username } from '../../../utils/constants';
import toaster from '../../../components/toast';
import EmptyTip from '../../../components/empty-tip';
import Loading from '../../../components/loading';
import SysAdminUserStatusEditor from '../../../components/select-editor/sysadmin-user-status-editor';
import SysAdminAddUserDialog from '../../../components/dialog/sysadmin-dialog/sysadmin-add-user-dialog';
import CommonOperationConfirmationDialog from '../../../components/dialog/common-operation-confirmation-dialog';
import MainPanelTopbar from '../main-panel-topbar';
import OrgNav from './org-nav';
import OpMenu from './user-op-menu';

class Content extends Component {

  constructor(props) {
    super(props);
    this.state = {
      isItemFreezed: false
    };
  }

  onFreezedItem = () => {
    this.setState({isItemFreezed: true});
  }

  onUnfreezedItem = () => {
    this.setState({isItemFreezed: false});
  }

  render() {
    const { loading, errorMsg, items } = this.props;
    if (loading) {
      return <Loading />;
    } else if (errorMsg) {
      return <p className="error text-center mt-4">{errorMsg}</p>;
    } else {
      const emptyTip = (
        <EmptyTip>
          <h2>{gettext('No members')}</h2>
        </EmptyTip>
      );
      const table = (
        <Fragment>
          <table>
            <thead>
              <tr>
                <th width="25%">{gettext('Name')}</th>
                <th width="20%">{gettext('Status')}</th>
                <th width="20%">{gettext('Space Used')}</th>
                <th width="30%">{gettext('Created At')}{' / '}{gettext('Last Login')}</th>
                <th width="5%">{/* Operations */}</th>
              </tr>
            </thead>
            <tbody>
              {items.map((item, index) => {
                return (<Item
                  key={index}
                  item={item}
                  isItemFreezed={this.state.isItemFreezed}
                  onFreezedItem={this.onFreezedItem}
                  onUnfreezedItem={this.onUnfreezedItem}
                  updateStatus={this.props.updateStatus}
                  deleteUser={this.props.deleteUser}
                />);
              })}
            </tbody>
          </table>
        </Fragment>
      );
      return items.length ? table : emptyTip; 
    }
  }
}

class Item extends Component {

  constructor(props) {
    super(props);
    this.state = {
      isOpIconShown: false,
      highlight: false,
      isDeleteDialogOpen: false,
      isResetPasswordDialogOpen: false
    };
  }

  handleMouseEnter = () => {
    if (!this.props.isItemFreezed) {
      this.setState({
        isOpIconShown: true,
        highlight: true
      }); 
    }   
  }

  handleMouseLeave = () => {
    if (!this.props.isItemFreezed) {
      this.setState({
        isOpIconShown: false,
        highlight: false
      }); 
    }   
  }

  onUnfreezedItem = () => {
    this.setState({
      highlight: false,
      isOpIconShow: false
    });
    this.props.onUnfreezedItem();
  }

  onMenuItemClick = (operation) => {
    switch(operation) {
      case 'Delete':
        this.toggleDeleteDialog();
        break;
      case 'Reset Password':
        this.toggleResetPasswordDialog();
        break;
      default:
        break;
    }
  }

  toggleDeleteDialog = (e) => {
    if (e) {
      e.preventDefault();
    }
    this.setState({isDeleteDialogOpen: !this.state.isDeleteDialogOpen});
  }

  toggleResetPasswordDialog = (e) => {
    if (e) {
      e.preventDefault();
    }
    this.setState({isResetPasswordDialogOpen: !this.state.isResetPasswordDialogOpen});
  }

  updateStatus= (statusValue) => {
    this.props.updateStatus(this.props.item.email, statusValue);
  }

  deleteUser = () => {
    const { item } = this.props;
    this.props.deleteUser(item.org_id, item.email);
  }

  resetPassword = () => {
    seafileAPI.sysAdminResetUserPassword(this.props.item.email).then(res => {
      toaster.success(res.data.reset_tip);
    }).catch((error) => {
      let errMessage = Utils.getErrorMsg(error);
      toaster.danger(errMessage);
    }); 
  }

  render() {
    const { item } = this.props;
    const { isOpIconShown, isDeleteDialogOpen, isResetPasswordDialogOpen } = this.state;

    const itemName = '<span class="op-target">' + Utils.HTMLescape(item.name) + '</span>';
    let deleteDialogMsg = gettext('Are you sure you want to delete {placeholder} ?').replace('{placeholder}', itemName);
    let resetPasswordDialogMsg = gettext('Are you sure you want to reset the password of {placeholder} ?').replace('{placeholder}', itemName);

    return (
      <Fragment>
        <tr className={this.state.highlight ? 'tr-highlight' : ''} onMouseEnter={this.handleMouseEnter} onMouseLeave={this.handleMouseLeave}>
          <td><a href={`${siteRoot}useradmin/info/${encodeURIComponent(item.email)}/`}>{item.name}</a></td>
          <td>
            <SysAdminUserStatusEditor
              isTextMode={true}
              isEditIconShow={isOpIconShown}
              currentStatus={item.active ? 'active' : 'inactive'}
              statusOptions={['active', 'inactive']}
              onStatusChanged={this.updateStatus}
            />
          </td>
          <td>{`${Utils.bytesToSize(item.quota_usage)} / ${item.quota_total > 0 ? Utils.bytesToSize(item.quota_total) : '--'}`}</td>
          <td>
            {moment(item.ctime).format('YYYY-MM-DD hh:mm:ss')}{' / '}{item.last_login ? moment(item.last_login).fromNow() : '--'}
          </td>
          <td>
            {(isOpIconShown && item.email != username) &&
            <OpMenu
              onMenuItemClick={this.onMenuItemClick}
              onFreezedItem={this.props.onFreezedItem}
              onUnfreezedItem={this.onUnfreezedItem}
            />
            }
          </td>
        </tr>
        {isDeleteDialogOpen &&
          <CommonOperationConfirmationDialog
            title={gettext('Delete Member')}
            message={deleteDialogMsg}
            executeOperation={this.deleteUser}
            confirmBtnText={gettext('Delete')}
            toggleDialog={this.toggleDeleteDialog}
          />
        }
        {isResetPasswordDialogOpen &&
          <CommonOperationConfirmationDialog
            title={gettext('Reset Password')}
            message={resetPasswordDialogMsg}
            executeOperation={this.resetPassword}
            confirmBtnText={gettext('Reset')}
            toggleDialog={this.toggleResetPasswordDialog}
          />
        }
      </Fragment>
    );
  }
}

class OrgUsers extends Component {

  constructor(props) {
    super(props);
    this.state = {
      loading: true,
      errorMsg: '',
      orgName: '',
      userList: [],
      isAddUserDialogOpen: false
    };
  }

  componentDidMount () {
    seafileAPI.sysAdminGetOrg(this.props.orgID).then((res) => {
      this.setState({
        orgName: res.data.org_name
      });
    });
    seafileAPI.sysAdminListOrgUsers(this.props.orgID).then((res) => {
      this.setState({
        loading: false,
        userList: res.data.users
      });
    }).catch((error) => {
      if (error.response) {
        if (error.response.status == 403) {
          this.setState({
            loading: false,
            errorMsg: gettext('Permission denied')
          }); 
          location.href = `${loginUrl}?next=${encodeURIComponent(location.href)}`;
        } else {
          this.setState({
            loading: false,
            errorMsg: gettext('Error')
          }); 
        }   
      } else {
        this.setState({
          loading: false,
          errorMsg: gettext('Please check the network.')
        });
      }
    });
  }

  toggleAddUserDialog = () => {
    this.setState({isAddUserDialogOpen: !this.state.isAddUserDialogOpen});
  }

  addUser = (newUserInfo) => {
    const { email, name, password } = newUserInfo;
    seafileAPI.sysAdminAddOrgUser(this.props.orgID, email, name, password).then(res => {
      let userList = this.state.userList;
      userList.unshift(res.data);
      this.setState({userList: userList});
    }).catch((error) => {
      let errMessage = Utils.getErrorMsg(error);
      toaster.danger(errMessage);
    });
  }

  deleteUser = (orgID, email) => {
    seafileAPI.sysAdminDeleteOrgUser(orgID, email).then(res => {
      let newUserList = this.state.userList.filter(item => {
        return item.email != email;
      });
      this.setState({userList: newUserList});
      toaster.success(gettext('Successfully deleted 1 item.'));
    }).catch((error) => {
      let errMessage = Utils.getErrorMsg(error);
      toaster.danger(errMessage);
    });
  }

  updateStatus = (email, statusValue) => {
    const isActive = statusValue == 'active';
    seafileAPI.sysAdminUpdateOrgUser(this.props.orgID, email, 'active', isActive).then(res => {
      let newUserList = this.state.userList.map(item => {
        if (item.email == email) {
          item.active = res.data.active;
        }
        return item;
      });
      this.setState({userList: newUserList});
    }).catch((error) => {
      let errMessage = Utils.getErrorMsg(error);
      toaster.danger(errMessage);
    });
  }

  render() {
    const { isAddUserDialogOpen, orgName } = this.state;
    return (
      <Fragment>
        <MainPanelTopbar>
          <Button className="btn btn-secondary operation-item" onClick={this.toggleAddUserDialog}>{gettext('Add Member')}</Button>
        </MainPanelTopbar>
        <div className="main-panel-center flex-row">
          <div className="cur-view-container">
            <OrgNav 
              currentItem="users" 
              orgID={this.props.orgID} 
              orgName={orgName}
            />
            <div className="cur-view-content">
              <Content
                loading={this.state.loading}
                errorMsg={this.state.errorMsg}
                items={this.state.userList}
                updateStatus={this.updateStatus}
                deleteUser={this.deleteUser}
              />
            </div>
          </div>
        </div>
        {isAddUserDialogOpen &&
          <SysAdminAddUserDialog
            addUser={this.addUser}
            toggleDialog={this.toggleAddUserDialog}
          />
        }
      </Fragment>
    );
  }
}

export default OrgUsers;