/*
 This file is part of TALER
 (C) 2015 GNUnet e.V.

 TALER is free software; you can redistribute it and/or modify it under the
 terms of the GNU General Public License as published by the Free Software
 Foundation; either version 3, or (at your option) any later version.

 TALER is distributed in the hope that it will be useful, but WITHOUT ANY
 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
 A PARTICULAR PURPOSE.  See the GNU General Public License for more details.

 You should have received a copy of the GNU General Public License along with
 TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
 */


/**
 * Benchmarks for the wallet.
 *
 * @author Florian Dold
 */

import * as i18n from "../../i18n";

import { runOnceWhenReady } from "./common";

import { BenchmarkResult } from "../../walletTypes";

import * as wxApi from "../wxApi";

import * as React from "react";
import * as ReactDOM from "react-dom";


interface BenchmarkRunnerState {
  repetitions: number;
  result?: BenchmarkResult;
  running: boolean;
}


function BenchmarkDisplay(props: BenchmarkRunnerState) {
  const result = props.result;
  if (!result) {
    if (props.running) {
      return <div>Waiting for results ...</div>;
    } else {
      return <div></div>;
    }
  }
  return (
    <>
    <h2>Results for {result.repetitions} repetitions</h2>
    <table className="pure-table">
      <thead>
      <tr>
        <th>{i18n.str`Operation`}</th>
        <th>{i18n.str`time (ms/op)`}</th>
      </tr>
      {
        Object.keys(result.time).sort().map(
          k =>
            <tr>
              <td>{k}</td>
              <td>{result.time[k] / result.repetitions}</td>
            </tr>
        )
      }
      </thead>
    </table>
    </>
  );
}

class BenchmarkRunner extends React.Component<any, BenchmarkRunnerState> {
  constructor(props: any) {
    super(props);
    this.state = {
      repetitions: 10,
      running: false,
    };
  }

  async run() {
    this.setState({ result: undefined, running: true });
    let result = await wxApi.benchmarkCrypto(this.state.repetitions);
    this.setState({ result, running: false });
  }

  render() {
    return (
      <div>
        <label>Repetitions:</label>
        <input type="number"
               value={this.state.repetitions}
               onChange={(evt) => this.setState({ repetitions: Number.parseInt(evt.target.value) })} />
        {" "}
        <button onClick={() => this.run()}>Run</button>
        <BenchmarkDisplay {...this.state} />
      </div>
    );
  }
}


runOnceWhenReady(() => {
  ReactDOM.render(<BenchmarkRunner />, document.getElementById("container")!);
  // Will be used by the backend to detect when the popup gets closed,
  // so we can clear notifications
});