import "./info-panel.scss";

import React, { Component, ReactNode } from "react";
import { computed, observable, reaction } from "mobx";
import { disposeOnUnmount, observer } from "mobx-react";
import { cssNames } from "../../utils";
import { Button } from "../button";
import { Icon } from "../icon";
import { Spinner } from "../spinner";
import { dockStore, TabId } from "./dock.store";
import { Notifications } from "../notifications";

interface Props extends OptionalProps {
  tabId: TabId;
  submit?: () => Promise<ReactNode | string>;
}

interface OptionalProps {
  className?: string;
  error?: string;
  controls?: ReactNode;
  submitLabel?: ReactNode;
  submittingMessage?: ReactNode;
  disableSubmit?: boolean;
  showButtons?: boolean
  showSubmitClose?: boolean;
  showInlineInfo?: boolean;
  showNotifications?: boolean;
  showStatusPanel?: boolean;
}

@observer
export class InfoPanel extends Component<Props> {
  static defaultProps: OptionalProps = {
    submitLabel: "Submit",
    submittingMessage: "Submitting..",
    showButtons: true,
    showSubmitClose: true,
    showInlineInfo: true,
    showNotifications: true,
    showStatusPanel: true,
  };

  @observable error = "";
  @observable waiting = false;

  componentDidMount() {
    disposeOnUnmount(this, [
      reaction(() => this.props.tabId, () => {
        this.waiting = false;
      })
    ]);
  }

  @computed get errorInfo() {
    return this.props.error;
  }

  submit = async () => {
    const { showNotifications } = this.props;

    this.waiting = true;

    try {
      const result = await this.props.submit();

      if (showNotifications) Notifications.ok(result);
    } catch (error) {
      if (showNotifications) Notifications.error(error.toString());
    } finally {
      this.waiting = false;
    }
  };

  submitAndClose = async () => {
    await this.submit();
    this.close();
  };

  close = () => {
    dockStore.closeTab(this.props.tabId);
  };

  renderErrorIcon() {
    if (!this.props.showInlineInfo || !this.errorInfo) {
      return;
    }

    return (
      <div className="error">
        <Icon material="error_outline" tooltip={this.errorInfo}/>
      </div>
    );
  }

  render() {
    const { className, controls, submitLabel, disableSubmit, error, submittingMessage, showButtons, showSubmitClose, showStatusPanel } = this.props;
    const { submit, close, submitAndClose, waiting } = this;
    const isDisabled = !!(disableSubmit || waiting || error);

    return (
      <div className={cssNames("InfoPanel flex gaps align-center", className)}>
        <div className="controls">
          {controls}
        </div>
        {showStatusPanel && (
          <div className="flex gaps align-center">
            {waiting ? <><Spinner /> {submittingMessage}</> : this.renderErrorIcon()}
          </div>
        )}
        {showButtons && (
          <>
            <Button plain label="Cancel" onClick={close} />
            <Button
              active
              outlined={showSubmitClose}
              primary={!showSubmitClose}// one button always should be primary (blue)
              label={submitLabel}
              onClick={submit}
              disabled={isDisabled}
            />
            {showSubmitClose && (
              <Button
                primary active
                label={`${submitLabel} & Close`}
                onClick={submitAndClose}
                disabled={isDisabled}
              />
            )}
          </>
        )}
      </div>
    );
  }
}
