import * as React from 'react';

import { JS } from '@aws-amplify/core';

import "@aws-amplify/ui/dist/style.css";
import * as AmplifyUI from '@aws-amplify/ui';

import AmplifyTheme from './Amplify-UI-Theme';

export const Container = (props) => {
    const theme = props.theme || AmplifyTheme;
    const style = propStyle(props, theme.container);
    const p = JS.objectLessAttributes(props, 'theme');

    return beforeAfter(
        <div {...p} className={AmplifyUI.container} style={style}>
            {props.children}
        </div>
    );
};

export const FormContainer = (props) => {
    const theme = props.theme || AmplifyTheme;
    return beforeAfter(
        <div className={AmplifyUI.formContainer} style={theme.formContainer}>
            {props.children}
        </div>
    );
};

export const FormSection = (props) => {
    const theme = props.theme || AmplifyTheme;
    const style = propStyle(props, theme.formSection);
    return (
        <FormContainer theme={theme}>
            {beforeAfter(
                <div className={AmplifyUI.formSection} style={style}>
                    {props.children}
                </div>
            )}
        </FormContainer>
    );
};

export const SectionHeader = (props) => {
    const theme = props.theme || AmplifyTheme;
    const style = propStyle(props, theme.sectionHeader);
    const p = JS.objectLessAttributes(props, 'theme');
    return beforeAfter(
        <div {...p} className={AmplifyUI.sectionHeader} style={style}>
            <SectionHeaderContent theme={theme}>
                {props.children}
                {props.hint &&
                    <div className={AmplifyUI.sectionHeaderHint}>
                        {props.hint}
                    </div>
                }
            </SectionHeaderContent>
        </div>
    );
};

export const SectionHeaderContent = (props) => {
    const theme = props.theme || AmplifyTheme;
    const style = propStyle(props, theme.sectionHeaderContent);
    return beforeAfter(
        <span className={AmplifyUI.sectionHeaderContent} style={style}>
            {props.children}
        </span>
    );
};

export const SectionFooter = (props) => {
    const theme = props.theme || AmplifyTheme;
    const style = propStyle(props, theme.sectionFooter);
    const p = JS.objectLessAttributes(props, 'theme');
    return beforeAfter(
        <div {...p} className={AmplifyUI.sectionFooter} style={style}>
            {props.children}
        </div>
    );
};

export const SectionFooterPrimaryContent = (props) => {
    const theme = props.theme || AmplifyTheme;
    const style = propStyle(props, theme.sectionFooterPrimaryContent);
    return beforeAfter(
        <span className={AmplifyUI.sectionFooterPrimaryContent} style={style}>
            {props.children}
        </span>
    );
};

export const SectionFooterSecondaryContent = (props) => {
    const theme = props.theme || AmplifyTheme;
    const style = propStyle(props, theme.sectionFooterSecondaryContent);
    return beforeAfter(
        <span className={AmplifyUI.sectionFooterSecondaryContent} style={style}>
            {props.children}
        </span>
    );
};

export const SectionBody = (props) => {
    const theme = props.theme || AmplifyTheme;
    const style = propStyle(props, theme.sectionBody);
    const p = JS.objectLessAttributes(props, 'theme');
    return beforeAfter(
        <div {...p} className={AmplifyUI.sectionBody} style={style}>
            {props.children}
        </div>
    );
};

export const ActionRow = (props) => {
    const theme = props.theme || AmplifyTheme;
    const style = propStyle(props, theme.actionRow);
    const p = JS.objectLessAttributes(props, 'theme');
    return beforeAfter(
        <div {...p} className="amplify-action-row" style={style}>
            {props.children}
        </div>
    );
};

export const Strike = (props) => {
    const theme = props.theme || AmplifyTheme;
    const style = propStyle(props, theme.strike);
    return beforeAfter(
        <div className={AmplifyUI.strike} style={style}>
            <StrikeContent theme={theme}>{props.children}</StrikeContent>
        </div>
    );
};

export const StrikeContent = (props) => {
    const theme = props.theme || AmplifyTheme;
    return beforeAfter(
        <span className={AmplifyUI.strikeContent} style={theme.strikeContent}>
            {props.children}
        </span>
    );
};

export const FormRow = (props) => {
    const theme = props.theme || AmplifyTheme;
    const style = propStyle(props, theme.formRow);
    const p = JS.objectLessAttributes(props, 'theme');
    return beforeAfter(
        <div {...p} className={AmplifyUI.formRow} style={style}>
            {props.children}
        </div>
    );
};

export const RadioRow = (props) => {
    const id = props.id || '_' + props.value;
    const theme = props.theme || AmplifyTheme;
    return (
        <FormRow theme={theme}>
            <Radio
                {...props}
                id={id}
            />
            <Label
                htmlFor={id}
                theme={theme}
            >{props.placeholder}</Label>
        </FormRow>
    );
};

export const Radio = (props) => {
    const theme = props.theme || AmplifyTheme;
    const style = propStyle(props, theme.radio);
    const p = JS.objectLessAttributes(props, 'theme');
    return beforeAfter(
            <input
                {...p}
                type="radio"
                className={AmplifyUI.radio}
                style={style}
            />
    );
};

export const InputRow = (props) => {
    const theme = props.theme || AmplifyTheme;
    const style = propStyle(props, theme.input);
    const p = JS.objectLessAttributes(props, 'theme');
    return (
        <FormRow theme={theme}>
            {beforeAfter(
                <input {...p} className={AmplifyUI.input} style={style} />
            )}
        </FormRow>
    );
};

export const Input = (props) => {
    const theme = props.theme || AmplifyTheme;
    const style = propStyle(props, theme.input);
    const p = JS.objectLessAttributes(props, 'theme');
    return (
        <input {...p} className={AmplifyUI.input} style={style} />
    );
};

export const SelectInput = (props) => {
    const theme = props.theme || AmplifyTheme;
    const style = propStyle(props, theme.selectInput);
    return (
        <div className={AmplifyUI.selectInput} style={style}>
            {props.children}
        </div>
    );
};

export const FormField = (props) => {
    const theme = props.theme || AmplifyTheme;
    const style = propStyle(props, theme.formField);
    const p = JS.objectLessAttributes(props, 'theme');
    return beforeAfter(
        <div {...p} className={AmplifyUI.formField} style={style}>
            {props.children}
        </div>
    );
};

export const Button = (props) => {
    const theme = props.theme || AmplifyTheme;
    const style = propStyle(props, theme.button);
    const disabled = props.disabled || false;
    const p = JS.objectLessAttributes(props, 'theme');
    return beforeAfter(
        <button {...p} className={AmplifyUI.button} style={style} disabled={disabled}>
            {props.children}
        </button>
    );
};

export const PhotoPickerButton = (props) => {
    const theme = props.theme || AmplifyTheme;
    const style = propStyle(props, theme.photoPickerButton);
    const p = JS.objectLessAttributes(props, 'theme');
    return (
        <button {...p} className={[AmplifyUI.photoPickerButton, AmplifyUI.button].join(' ')} style={style}>
            {props.children}
        </button>
    );
};

export const SignInButton = (props) => {
    const theme = props.theme || AmplifyTheme;
    const styles = Object.assign({}, theme.signInButton, theme[props.variant]);
    const p = JS.objectLessAttributes(props, 'theme');

    return beforeAfter(
        <button {...p} className={AmplifyUI.signInButton} style={styles}>
            {props.children}
        </button>
    );
};

export const SignInButtonIcon = (props) => {
    const theme = props.theme || AmplifyTheme;
    const style = propStyle(props, theme.signInButtonIcon);
    const p = JS.objectLessAttributes(props, 'theme');
    return beforeAfter(
        <span {...p} className={AmplifyUI.signInButtonIcon} style={style}>
            {props.children}
        </span>
    );
};

export const SignInButtonContent = (props) => {
    const theme = props.theme || AmplifyTheme;
    const style = propStyle(props, theme.signInButtonContent);
    return beforeAfter(
        <span className={AmplifyUI.signInButtonContent} style={style}>
            {props.children}
        </span>
    );
};

export const Link = (props) => {
    const theme = props.theme || AmplifyTheme;
    const style = propStyle(props, theme.a);
    const p = JS.objectLessAttributes(props, 'theme');
    return beforeAfter(
        <a {...p} className={AmplifyUI.a} style={style}>{props.children}</a>
    );
};

export const Label = (props) => {
    const theme = props.theme || AmplifyTheme;
    const style = propStyle(props, theme.label);
    const p = JS.objectLessAttributes(props, 'theme');
    return beforeAfter(
        <label {...p} className={AmplifyUI.label} style={style}>{props.children}</label>
    );
};

export const Hint = (props) => {
    const theme = props.theme || AmplifyTheme;
    const style = propStyle(props, theme.hint);
    return beforeAfter(
        <div className={AmplifyUI.hint} style={style}>
            {props.children}
        </div>
    );
};

export const InputLabel = (props) => {
    const theme = props.theme || AmplifyTheme;
    const style = propStyle(props, theme.inputLabel);
    return beforeAfter(
        <div className={AmplifyUI.inputLabel} style={style}>
            {props.children}
        </div>
    );
};

export const NavBar = (props) => {
    const theme = props.theme || AmplifyTheme;
    const style = propStyle(props, theme.navBar);
    const p = JS.objectLessAttributes(props, 'theme');
    return beforeAfter(
        <div {...p} className={AmplifyUI.navBar} style={style}>
            {props.children}
        </div>
    );
};

export const Nav = (props) => {
    const theme = props.theme || AmplifyTheme;
    const style = propStyle(props, theme.nav);
    const p = JS.objectLessAttributes(props, 'theme');
    return beforeAfter(
        <div {...p} className={AmplifyUI.nav} style={style}>
            {props.children}
        </div>
    );
};

export const NavRight = (props) => {
    const theme = props.theme || AmplifyTheme;
    const style = propStyle(props, theme.navRight);
    const p = JS.objectLessAttributes(props, 'theme');
    return beforeAfter(
        <div {...p} className={AmplifyUI.navRight} style={style}>
            {props.children}
        </div>
    );
};

export const NavItem = (props) => {
    const theme = props.theme || AmplifyTheme;
    const style = propStyle(props, theme.navItem);
    const p = JS.objectLessAttributes(props, 'theme');
    return beforeAfter(
        <div {...p} className={AmplifyUI.navItem} style={style}>
            {props.children}
        </div>
    );
};

export const NavButton = (props) => {
    const theme = props.theme || AmplifyTheme;
    const style = propStyle(props, theme.navButton);
    const p = JS.objectLessAttributes(props, 'theme');
    return beforeAfter(
        <button {...p} className={AmplifyUI.button} style={style}>
            {beforeAfter(
                <span>{props.children}</span>
            )}
        </button>
    );
};

export const Toast = (props) => {
    const { onClose } = props;
    const theme = props.theme || AmplifyTheme;

    return (
        <div theme={theme} className={AmplifyUI.toast} style={theme.toast}>
            <span>{props.children}</span>
            <a className={AmplifyUI.toastClose} onClick={onClose}/>
        </div>
    );
};

Toast.defaultProps = {
    onClose: () => void(0)
};

export const PhotoPlaceholder = (props) => {
    const theme = props.theme || AmplifyTheme;
    const style = propStyle(props, theme.photoPlaceholder);
    return (
        <div className={AmplifyUI.photoPlaceholder} style={style}>
            <div className={AmplifyUI.photoPlaceholderIcon}>
                <svg xmlns='http://www.w3.org/2000/svg' width='64' height='64' viewBox='0 0 24 24'>
                    <circle cx='12' cy='12' r='3.2' />
                    <path d='M9 2L7.17 4H4c-1.1 0-2 .9-2 2v12c0 1.1.9 2 2 2h16c1.1 0 2-.9 2-2V6c0-1.1-.9-2-2-2h-3.17L15 2H9zm3 15c-2.76 0-5-2.24-5-5s2.24-5 5-5 5 2.24 5 5-2.24 5-5 5z'
                    />
                    <path d='M0 0h24v24H0z' fill='none' />
                </svg>
            </div>
        </div>
    );
};

export const beforeAfter = (el) => {
    const style = el.props.style || {};
    const { before, after } = style;
    if (!before && !after) { return el; }

    return (
        <span style={{ position: 'relative' }}>
            {before ? <span style={before}>{before.content}</span> : null}
            {el}
            {after ? <span style={after}>{after.content}</span> : null}
        </span>
    );
};

export const propStyle = (props, themeStyle) => {
    const { id, style } = props;
    const styl = Object.assign({}, style, themeStyle);
    if (!id) { return styl; }

    const selector = '#' + id;
    Object.assign(styl, styl[selector]);
    return styl;
};