// @flow
import * as React from "react";
import { observable } from "mobx";
import { inject, observer } from "mobx-react";
import Button from "components/Button";
import Flex from "shared/components/Flex";
import HelpText from "components/HelpText";
import Collection from "models/Collection";
import AuthStore from "stores/AuthStore";
import UiStore from "stores/UiStore";

type Props = {
  collection: Collection,
  auth: AuthStore,
  ui: UiStore,
  onSubmit: () => void,
};

@observer
class CollectionExport extends React.Component<Props> {
  @observable isLoading: boolean = false;

  handleSubmit = async (ev: SyntheticEvent<>) => {
    ev.preventDefault();

    this.isLoading = true;
    await this.props.collection.export();
    this.isLoading = false;
    this.props.onSubmit();
  };

  render() {
    const { collection, auth } = this.props;
    if (!auth.user) return null;

    return (
      <Flex column>
        <form onSubmit={this.handleSubmit}>
          <HelpText>
            Exporting the collection <strong>{collection.name}</strong> may take
            a few seconds. Your documents will be downloaded as a zip of folders
            with files in Markdown format.
          </HelpText>
          <Button type="submit" disabled={this.isLoading} primary>
            {this.isLoading ? "Exporting…" : "Export Collection"}
          </Button>
        </form>
      </Flex>
    );
  }
}

export default inject("ui", "auth")(CollectionExport);