import React, { Component } from 'react';
import _ from 'lodash';
import { LegacyForms } from '@grafana/ui';
import { debounce } from 'lodash';
import { getBackendSrv } from '@grafana/runtime';
const { AsyncSelect } = LegacyForms;

export interface Team {
  id: number;
  label: string;
  name: string;
  avatarUrl: string;
}

export interface Props {
  onSelected: (team: Team) => void;
  className?: string;
}

export interface State {
  isLoading: boolean;
}

export class TeamPicker extends Component<Props, State> {
  debouncedSearch: any;

  constructor(props: Props) {
    super(props);
    this.state = { isLoading: false };
    this.search = this.search.bind(this);

    this.debouncedSearch = debounce(this.search, 300, {
      leading: true,
      trailing: true,
    });
  }

  search(query?: string) {
    this.setState({ isLoading: true });

    if (_.isNil(query)) {
      query = '';
    }

    return getBackendSrv()
      .get(`/api/teams/search?perpage=100&page=1&query=${query}`)
      .then((result: any) => {
        const teams = result.teams.map((team: any) => {
          return {
            id: team.id,
            value: team.id,
            label: team.name,
            name: team.name,
            imgUrl: team.avatarUrl,
          };
        });

        this.setState({ isLoading: false });
        return teams;
      });
  }

  render() {
    const { onSelected, className } = this.props;
    const { isLoading } = this.state;
    return (
      <div className="user-picker">
        <AsyncSelect
          isLoading={isLoading}
          defaultOptions={true}
          loadOptions={this.debouncedSearch}
          onChange={onSelected}
          className={className}
          placeholder="Select a team"
          noOptionsMessage={() => 'No teams found'}
        />
      </div>
    );
  }
}