/* eslint react/prop-types: 0 */
/*global $STM_csrf, $STM_Config */
import React from 'react';
import {connect} from 'react-redux';
import { Link } from 'react-router';
import {api} from '@steemit/steem-js';

import LoadingIndicator from 'app/components/elements/LoadingIndicator';
import {PrivateKey} from '@steemit/steem-js/lib/auth/ecc';
import * as userActions from 'app/redux/UserReducer';
import {validate_account_name} from 'app/utils/ChainValidation';
import runTests from 'app/utils/BrowserTests';
import GeneratedPasswordInput from 'app/components/elements/GeneratedPasswordInput';
import {saveCords} from 'app/utils/ServerApiClient';

class CreateAccount extends React.Component {

    static propTypes = {
        loginUser: React.PropTypes.func.isRequired,
        serverBusy: React.PropTypes.bool
    };

    constructor(props) {
        super(props);
        this.state = {
            name: '',
            password: '',
            password_valid: '',
            name_error: '',
            server_error: '',
            loading: false,
            cryptographyFailure: false,
            showRules: false,
            showPass: false,
            account_has_keys_warning: false, // remove this after May 20th
            // user_name_picked: this.props.offchainUser.getIn(["name"])
        };
        this.onSubmit = this.onSubmit.bind(this);
        this.onNameChange = this.onNameChange.bind(this);
        this.onPasswordChange = this.onPasswordChange.bind(this);
        this.preventDoubleClick = this.preventDoubleClick.bind(this);
    }

    componentDidMount() {
        const newState = {showPass: true};
        const cryptoTestResult = runTests();
        if (cryptoTestResult !== undefined) {
            console.error('CreateAccount - cryptoTestResult: ', cryptoTestResult);
            newState.cryptographyFailure = true;
        } else {
            newState.showPass = true;
        }
        // let's find out if there is pre-approved not created account name
        const offchainAccount = this.props.offchainUser ? this.props.offchainUser.get('account') : null;
        if (offchainAccount) {
            newState.name = offchainAccount;
            this.validateAccountName(offchainAccount);
            // remove below after May 20th
            if (this.props.offchainUser.get('account_has_keys')) {
                newState.account_has_keys_warning = true;
            }
        }
        this.props.showTerms();
        this.setState(newState);
    }

    mousePosition(e) {
        // log x/y cords
        console.log("--> mouse position --", e.type, e.screenX, e.screenY);
        if(e.type === 'click') {
            saveCords(e.screenX, e.screenY);
        }
    }

    onSubmit(e) {
        e.preventDefault();
        this.setState({server_error: '', loading: true});
        const {password, password_valid} = this.state;
        const name = this.state.name;
        if (!password || !password_valid) return;

        let public_keys;
        try {
            const pk = PrivateKey.fromWif(password);
            public_keys = [1, 2, 3, 4].map(() => pk.toPublicKey().toString());
        } catch (error) {
            public_keys = ['owner', 'active', 'posting', 'memo'].map(role => {
                const pk = PrivateKey.fromSeed(`${name}${role}${password}`);
                return pk.toPublicKey().toString();
            });
        }

        // createAccount
        fetch('/api/v1/accounts', {
            method: 'post',
            mode: 'no-cors',
            credentials: 'same-origin',
            headers: {
                Accept: 'application/json',
                'Content-type': 'application/json'
            },
            body: JSON.stringify({
                csrf: $STM_csrf,
                name,
                owner_key: public_keys[0],
                active_key: public_keys[1],
                posting_key: public_keys[2],
                memo_key: public_keys[3]
            })
        }).then(r => r.json()).then(res => {
            if (res.error || res.status !== 'ok') {
                console.error('CreateAccount server error', res.error);
                this.setState({server_error: res.error || 'Unknown server error', loading: false});
            } else {
                window.location = `/login.html#account=${name}&msg=accountcreated`;
            }
        }).catch(error => {
            console.error('Caught CreateAccount server error', error);
            this.setState({server_error: (error.message ? error.message : error), loading: false});
        });
    }

    onPasswordChange(password, password_valid) {
        this.setState({password, password_valid});
    }

    preventDoubleClick() {
        // return false;
    }

    onNameChange(e) {
        const name = e.target.value.trim().toLowerCase();
        this.validateAccountName(name);
        this.setState({name});
    }

    validateAccountName(name) {
        let name_error = '';
        let promise;
        if (name.length > 0) {
            name_error = validate_account_name(name);
            if (!name_error) {
                this.setState({name_error: ''});
                promise = api.getAccountsAsync([name]).then(res => {
                    return res && res.length > 0 ? 'Account name is not available' : '';
                });
            }
        }
        if (promise) {
            promise
                .then(error => this.setState({name_error: error}))
                .catch(() => this.setState({
                    name_error: "Account name can't be verified right now due to server failure. Please try again later."
                }));
        } else {
            this.setState({name_error});
        }
    }

    render() {
        if (!process.env.BROWSER) { // don't render this page on the server - it will not work until rendered in browser
            return <div className="CreateAccount row ">
                <div className="column">
                    <p className="text-center">LOADING..</p>
                </div>
            </div>;
        }

        const {
            name, password_valid, //showPasswordString,
            name_error, server_error, loading, cryptographyFailure, showRules
        } = this.state;

        const {loggedIn, logout, serverBusy} = this.props;
        const submit_btn_disabled = loading || !password_valid;
        const submit_btn_class = 'button action' + (submit_btn_disabled ? ' disabled' : '');

        const account_status = this.props.offchainUser ? this.props.offchainUser.get('account_status') : null;

        if (serverBusy || $STM_Config.disable_signups) {
            return <div className="row">
                <div className="column">
                    <br />
                    <div className="callout alert">
                        <p>Membership to Steemit.com is now under invitation only because of unexpectedly high sign up rate.</p>
                    </div>
                </div>
            </div>;
        }
        if (cryptographyFailure) {
            return <div className="row">
                <div className="column">
                    <br />
                    <div className="callout alert">
                        <h4>Cryptography test failed</h4>
                        <p>We will be unable to create your Steem account with this browser.</p>
                        <p>The latest versions of <a href="https://www.google.com/chrome/">Chrome</a> and <a href="https://www.mozilla.org/en-US/firefox/new/">Firefox</a>
                            are well tested and known to work with steemit.com.</p>
                    </div>
                </div>
            </div>;
        }

        if (loggedIn) {
            return <div className="row">
                <div className="column">
                    <br />
                    <div className="callout alert">
                        <p>You need to <a href="#" onClick={logout}>Logout</a> before you can create another account.</p>
                        <p>Please note that Steemit can only register one account per verified user.</p>
                    </div>
                </div>
            </div>;
        }

        if (account_status !== 'approved') {
            return <div className="row">
                <div className="column">
                    <br />
                    <div className="callout alert">
                        <p>It looks like your sign up request is not approved yet or you already created an account.<br />
                           Please try again later or contact <a href="mailto:support@steemit.com">support@steemit.com</a> for the status of your request.<br />
                           If you didn't submit your sign up application yet, <Link to="/pick_account">apply now</Link>!
                        </p>
                    </div>
                </div>
            </div>;
        }

        let next_step = null;
        if (server_error) {
            if (server_error === 'Email address is not confirmed') {
                next_step = <div className="callout alert">
                    <a href="/enter_email">Please verify your email address</a>
                </div>;
            } else if (server_error === 'Phone number is not confirmed') {
                next_step = <div className="callout alert">
                    <a href="/enter_mobile">Please verify your phone number</a>
                </div>;
            } else {
                next_step = <div className="callout alert">
                    <h5>Couldn't create account. Server returned the following error:</h5>
                    <p>{server_error}</p>
                </div>;
            }
        }

        return (
            <div>
                <div className="CreateAccount row">
                    <div className="column">
                        <h4>Please read the Steemit Rules and fill in the form below to create your Steemit account</h4>
                        {/*<Progress tabIndex="0" value={95} max={100} />*/}
                        {showRules ? <div className="CreateAccount__rules">
                            <p>
                                The first rule of Steemit is: Do not lose your password.<br />
                                The second rule of Steemit is: Do <strong>not</strong> lose your password.<br />
                                The third rule of Steemit is: We cannot recover your password, or your account if you lose your password.<br />
                                The forth rule: Do not tell anyone your password.<br />
                                The fifth rule: Always back up your password.
                                <br />
                                <br />
                                Seriously, we are, for technical reasons, entirely unable to gain
                                access to an account without knowing the password.  Steemit is a
                                new model, entirely unlike other sites on the Internet.  It's not
                                simply policy: <strong>We cannot recover your account or password
                                if you lose it.</strong>
                                <br />
                                Print out your password or write it down in a safe place.
                            </p>

                            <div className="text-center">
                            <a className="CreateAccount__rules-button" href="#" onClick={() => this.setState({showRules: false})}>
                            <span style={{display: 'inline-block', transform: 'rotate(-90deg)'}}>&raquo;</span>
                            </a>
                            </div>
                            <hr />
                        </div> : <div className="text-center">
                            <a className="CreateAccount__rules-button" href="#" onClick={() => this.setState({showRules: true})}>Steemit
                                Rules &nbsp; &raquo;</a>
                        </div>}
                        <br />
                        <form onSubmit={this.onSubmit} autoComplete="off" noValidate method="post">
                            <div className={name_error ? 'error' : ''}>
                            <label>ACCOUNT NAME
                            <input type="text" name="name" autoComplete="off" onChange={this.onNameChange} value={name} />
                            </label>
                            <p>{name_error}</p>
                            </div>
                            { // TODO: remove this after May 20th
                                this.state.account_has_keys_warning && <div className="warning">
                                    Please note: due to recent security changes if you chosen a password before during signup, this one below will override it — this is the one you need to save.
                                </div>
                            }
                            <GeneratedPasswordInput onChange={this.onPasswordChange} disabled={loading} showPasswordString={this.state.showPass} />
                            <br />
                            {next_step && <div>{next_step}<br /></div>}
                            <noscript>
                                <div className="callout alert">
                                    <p>This form requires javascript to be enabled in your browser</p>
                                </div>
                            </noscript>
                            {loading && <LoadingIndicator type="circle" />}
                            <input disabled={submit_btn_disabled} type="submit" className={submit_btn_class} onClick={this.mousePosition} value="Create Account" />
                        </form>
                    </div>
                </div>
            </div>
        );
    }
}

module.exports = {
    path: 'create_account',
    component: connect(
        state => {
            return {
                loggedIn: !!state.user.get('current'),
                offchainUser: state.offchain.get('user'),
                serverBusy: state.offchain.get('serverBusy'),
                suggestedPassword: state.global.get('suggestedPassword'),
            }
        },
        dispatch => ({
            loginUser: (username, password) => dispatch(userActions.usernamePasswordLogin({username, password, saveLogin: true})),
            logout: e => {
                if (e) e.preventDefault();
                dispatch(userActions.logout())
            },
            showTerms: e => {
                if (e) e.preventDefault();
                dispatch(userActions.showTerms())
            }
        })
    )(CreateAccount)
};
