var React = require('react');
var Input = require('./Input');
var $ = require('zepto-browserify').$;
var validator = require('validator');
var cx = require('classnames');

require('../../../../scss/components/core/signup_form/SignUpForm.scss');


var SimpleRegisterForm = React.createClass({

    getDefaultProps: function(){
        return({
            setActualForm: false,
            oBackgroundColor: "#fff",
            detailedRegisterForm: false,
            hiddenFooter: false,
        })
    },
    getInitialState: function() {

        return {
            emailPristiness: true,
            passwordPristiness: true,
            usernamePristiness: true,

            emailDirtiness: false,
            passwordDirtiness: false,
            usernameDirtiness: false,

            emailValidState: false,
            passwordValidState: false,
            usernameValidState: false,

            emailLastErrorMessage: "",
            passwordLastErrorMessage: "",
            usernameLastErrorMessage: "",

            uniqueEmailStatus: false,
            uniqueUsernameStatus: false,
            errorUsername: '',
            forbiddenWords: ["password", "user", "username"],
            loaderVisibility: false,
            isRegisteringUser: false,
        };
    },
    register: function(event){
        let self = this;
        event.preventDefault();

        this.setState({
            emailPristiness: false,
            passwordPristiness: false,
            usernamePristiness: false,
            emailDirtiness: true,
            passwordDirtiness: true,
            usernameDirtiness: true,
        }, this.triggerValidations);

        if( self.state.emailValidState && self.state.passwordValidState && self.state.usernameValidState){
            mixpanel.track("registerWithEmail");
            self.setState({ isRegisteringUser: true });
            $(".FooterRegisterForm__loader").show();
            $.post( forms.register,
                {   email: self.refs.email.value,
                    username: self.refs.username.value,
                    password: self.refs.password.value
                }, function(response){
                    location.href = response;
                }
            );
            return false;
        }

        // Disables the button to prevent forced registration
        $(".FooterRegisterForm__loader").hide();
        self.setState({ isRegisteringUser: false });

    },
    triggerValidations: function(){
        this.validateUsername();
        this.validateEmail();
        this.validatePassword();
    },
    validateUsername: function(){
        const USERNAME_PATTERN = /^[a-zA-Z0-9_-]{6,30}$/;
        const NO_SPACES_PATTERN = /^\S+$/;
        let username =  this.refs.username.value;

        //It will change pristiness to FALSE later based on Dirtiness status. DO NOT DELETE
        if(!this.state.usernameDirtiness){
            this.setState({ usernameDirtiness: true });
        }

        if(!this.state.usernamePristiness && this.state.usernameDirtiness){
            //Starts the validation
            if(username.length===0){
                this.setState({ usernameValidState: false, usernameLastErrorMessage: "El campo usuario es obligatorio"});
            }else if(username.length<6){
                this.setState({ usernameValidState: false, usernameLastErrorMessage: "El usuario debe tener mínimo 6 caracteres"});
            }else if(username.length>30){
                this.setState({ usernameValidState: false, usernameLastErrorMessage: "El usuario debe tener máximo 30 caracteres"});
            }else if( !validator.matches(username, USERNAME_PATTERN) ){
                this.setState({ usernameValidState: false });
                if( !validator.matches(username, NO_SPACES_PATTERN) ){
                    this.setState({usernameLastErrorMessage: "El nombre de usuario no puede contener espacios"});
                }else{
                    this.setState({usernameLastErrorMessage: "El nombre de usuario no puede tener caracteres especiales como @, #, ¨¨"});
                }
            }
            else{
                this.setState({ usernameValidState: true });
                this.checkUsernameAvailabilityService(username);
            }
        }
    },
    validatePassword: function(){
        const PASSWORD_PATTERN = /^(?=.*[a-zA-Z0-9]).{6,50}$/;
        let password = this.refs.password.value;

        //It will change pristiness to FALSE later based on Dirtiness status. DO NOT DELETE
        if(!this.state.passwordDirtiness){
            this.setState({ passwordDirtiness: true });
        }

        if(!this.state.pristinePasswordStatus && this.state.passwordDirtiness){
            //Starts the validation
            if(password.length===0){
                this.setState({ passwordValidState: false, passwordLastErrorMessage: "El campo contraseña es obligatorio"});
            }else if( password.length<6){
                this.setState({ passwordValidState: false, passwordLastErrorMessage: "La contraseña debe tener minimo 6 caracteres"});
            }else if( password.length>50){
                this.setState({ passwordValidState: false, passwordLastErrorMessage: "La contraseña debe tener maximo 50 caracteres"});
            }else if( !validator.matches(password, PASSWORD_PATTERN) ){
                this.setState({ passwordValidState: false, passwordLastErrorMessage: "La contraseña no puede contener espacios en blanco"});
            }else{
                this.setState({ passwordValidState: true});
            }

        }/*else{
         return true;
         }*/
    },
    validateEmail: function(){
        const EMAIL_PATTERN = /^([a-zA-Z0-9_\.-]+)@([\da-zA-Z\.-]+)\.([a-zA-Z\.]{2,6})$/;
        let email = this.refs.email.value;

        //It will change pristiness to FALSE later based on Dirtiness status. DO NOT DELETE
        if(!this.state.emailDirtiness){
            this.setState({ emailDirtiness: true });
        }

        if(!this.state.emailPristiness && this.state.emailDirtiness){
            //Starts the validation
            if( email.length === 0 ){
                this.setState({ emailValidState: false, emailLastErrorMessage: "El campo correo electrónico es obligatorio"});
            }else if( !validator.matches(email, EMAIL_PATTERN) ){
                this.setState({ emailValidState: false, emailLastErrorMessage: "Ingrese un correo electrónico válido"});
            }
            else{
                this.setState({ emailValidState: true });
                this.checkEmailAvailabilityService(email);
            }
        }
    },
    checkEmailAvailabilityService: function(email){
        var self = this;
        $.post('/validate-username-email/', { email: email, username: "" }, function(response){
            if(response.email.status){
                self.setState({ emailValidState: false, emailLastErrorMessage: "Ya existe un usuario con este correo electrónico"});
            }
        }, "json");
    },
    checkUsernameAvailabilityService: function(username){
        var self = this;
        $.post('/validate-username-email/', { username: username, email: "" }, function(response){
            if(response.username.status){
                self.setState({ usernameValidState: false, usernameLastErrorMessage: "Nombre de usuario no disponible"});
            }
        }, "json");
    },
    csrfValidation: function(){
        if(next){
            return(
                <input type="hidden" value={ next } name="next" />
            )
        }else{
            return(
                <input type="hidden" value={courses_app} name="next" />
            )
        }
    },
    clearEmail: function () {
        this.setState({
            emailValidState: true,
            emailPristiness: true
        });
    },
    clearPassword: function () {
        this.setState({
            passwordValidState: true,
            passwordPristiness: true
        });
    },
    clearUsername: function () {
        this.setState({
            usernameValidState: true,
            usernamePristiness: true
        });
    },
    validateDuplicateEmail: function(){
        var self= this;
        if(this.refs.email.isValid()){
            $.post('/validate-username-email/', { email: self.refs.email.getValue(), username: self.refs.username.getValue() }, function(response){
                response = JSON.parse(response);
                if(response.email.status == true){
                    self.refs.email.setBackendError(false, response.email.message);
                    self.setState({uniqueEmailStatus: false})
                    return false;
                }else{
                    self.refs.email.setValid();
                    self.setState({uniqueEmailStatus: true})
                    return true;
                }
            });
        }
    },
    validateDuplicateUsername: function(){
        var self= this;
        if(this.refs.username.isValid()){
            $.post('/validate-username-email/', { email: self.refs.email.getValue(), username: self.refs.username.getValue() }, function(response){
                response = JSON.parse(response);
                if(response.username.status == true){
                    self.refs.username.setBackendError(false, response.username.message);
                    self.setState({uniqueUsernameStatus: false});
                    return false;
                }else{
                    self.refs.username.setValid();
                    self.setState({uniqueUsernameStatus: true});
                    return true;
                }
            });
        }
    },
    _openLogin: function(event){
        event.preventDefault();
        if(this.props.setActualForm){
            this.props.setActualForm(2);
        }else{
            location.href = "/entrar";
        }
    },
    handlePasswordBlur: function(){
        if(this.state.passwordPristiness && this.state.passwordDirtiness){
            this.setState({ passwordPristiness: !this.state.passwordDirtiness }, this.validatePassword);
        }
    },
    handleEmailBlur: function(){
        if(this.state.emailPristiness && this.state.emailDirtiness){
            this.setState({ emailPristiness: !this.state.emailDirtiness }, this.validateEmail);
        }
    },
    handleUsernameBlur: function(){
        if(this.state.usernamePristiness && this.state.usernameDirtiness){
            this.setState({ usernamePristiness: !this.state.usernameDirtiness }, this.validateUsername);
        }
    },
    _showRegisterForm: function(){
        $('.registerForm').show();
        $('.registerWithEmailLabel').hide();
        $('.buttons-container').css("margin-top", "0");
        mixpanel.track("showRegisterForm");
    },
    _trackRegisterWithFacebook: function(){
        mixpanel.track("registerWithFacebook");
    },
    componentDidMount: function(){
        if(this.props.detailedRegisterForm){
            this._showRegisterForm();
        }
    },
    render: function() {
        var email_container = cx(
            'input-container'
            ,{'invalid' : !this.state.emailValidState && !this.state.emailPristiness}
            ,{'valid' : this.state.emailValidState && !this.state.emailPristiness}
        );
        var password_container = cx(
            'input-container'
            ,{'invalid' : !this.state.passwordValidState && !this.state.passwordPristiness}
            ,{'valid' : this.state.passwordValidState && !this.state.passwordPristiness}
        );
        var username_container = cx(
            'input-container'
            ,{'invalid' : !this.state.usernameValidState && !this.state.usernamePristiness}
            ,{'valid' : this.state.usernameValidState && !this.state.usernamePristiness}
        );
        let registerFormFooter = cx(
            'registerFormFooter'
            ,{'isInvisible': this.props.hiddenFooter}
        )

        let FooterRegisterForm__registerButton = cx('FooterRegisterForm__registerButton', { 'isSendingForm' : this.state.isRegisteringUser })

        return (
            <section id="register-form">
                <div className="signup-content">
                    <form id="registerForm">
                        <div className="registerForm">
                            <div className="validation-inputs">
                                <div className={email_container} >
                                    <input ref="email" type="email" onBlur={this.handleEmailBlur} onChange={this.validateEmail} placeholder="Correo Electrónico" onFocus={this.clearEmail}  />
                                    <div className="error_message_container">
                                        <p className="error_message"><img src="/static/img/footer/error-icon.png" alt="icono error" className="errorExclamationImage" />{this.state.emailLastErrorMessage}</p>
                                    </div>
                                </div>
                                <div className={password_container} >
                                    <input ref="password" type="password" onBlur={this.handlePasswordBlur} onChange={this.validatePassword} placeholder="Contraseña" onFocus={this.clearPassword} />
                                    <div className="error_message_container">
                                        <p className="error_message"><img src="/static/img/footer/error-icon.png" alt="icono error" className="errorExclamationImage" />{this.state.passwordLastErrorMessage}</p>
                                    </div>
                                </div>
                                <div className={username_container} >
                                    <input ref="username" type="text" onBlur={this.handleUsernameBlur} onChange={this.validateUsername} placeholder="Nombre de usuario" onFocus={this.clearUsername} />
                                    <div className="error_message_container">
                                        <p className="error_message"><img src="/static/img/footer/error-icon.png" alt="icono error" className="errorExclamationImage" />{this.state.usernameLastErrorMessage}</p>
                                    </div>
                                </div>
                            </div>
                            <p className="FooterRegisterForm__terms">
                                Al registrarte, estás aceptando nuestros a <a href="#"className="FooterRegisterForm__termsLink">Términos y Condiciones</a>
                            </p>
                            <div className="FooterRegisterForm__registerButtonContainer" onClick={this.register}>
                                <button className={FooterRegisterForm__registerButton} >
                                    Comienza un curso gratis
                                </button>
                                <img className="FooterRegisterForm__loader" src="/static/img/icon-loading.gif" alt="imagen cargando" />
                            </div>
                        </div>
                    </form>
                </div>
            </section>
        );
    }

});

export default SimpleRegisterForm;