import React from 'react';
import Textarea from 'react-textarea-autosize';
import PropTypes from 'prop-types';
import styled, { css } from 'styled-components';
import colors from 'config/colors';
import { FONT_SIZE, FONT_WEIGHT, LINE_HEIGHT, FONT_FAMILY } from 'config/variables';

const Wrapper = styled.div`
    width: 100%;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
`;

const disabledColor = colors.TEXT_PRIMARY;

const StyledTextarea = styled(Textarea)`
    width: 100%;
    min-height: 85px;
    padding: 10px 12px;
    box-sizing: border-box;
    border: 1px solid ${props => (props.colorBorder ? props.colorBorder : colors.DIVIDER)};
    border-radius: 2px;
    resize: none;
    outline: none;
    font-family: ${FONT_FAMILY.MONOSPACE};
    color: ${colors.TEXT_PRIMARY};
    background: ${colors.WHITE};
    font-weight: ${FONT_WEIGHT.MEDIUM};
    font-size: ${FONT_SIZE.BASE};
    white-space: pre-wrap; /* css-3 */
    white-space: -moz-pre-wrap; /* Mozilla, since 1999 */
    white-space: -pre-wrap; /* Opera 4-6 */
    white-space: -o-pre-wrap; /* Opera 7 */
    word-wrap: break-word; /* Internet Explorer 5.5+ */

    /* placeholder styles do not work correctly when groupped into one block */

    &::-webkit-input-placeholder {
        color: ${colors.LIGHT_GRAY_1};
        opacity: 1;
    }

    &::-moz-placeholder {
        color: ${colors.LIGHT_GRAY_1};
        opacity: 1;
    }

    &:-moz-placeholder {
        color: ${colors.LIGHT_GRAY_1};
        opacity: 1;
    }

    &:-ms-input-placeholder {
        color: ${colors.LIGHT_GRAY_1};
        opacity: 1;
    }

    &:read-only {
        background: ${colors.GRAY_LIGHT};
        color: ${colors.TEXT_SECONDARY};
    }

    &:focus {
        border-color: ${colors.INPUT_FOCUSED_BORDER};
        box-shadow: 0 0px 6px 0 ${colors.INPUT_FOCUSED_SHADOW};
    }

    &:disabled {
        pointer-events: none;
        background: ${colors.GRAY_LIGHT};
        color: ${colors.TEXT_SECONDARY};

        &::-webkit-input-placeholder {
            color: ${disabledColor};
            opacity: 1;
        }

        &::-moz-placeholder {
            color: ${disabledColor};
            opacity: 1;
        }

        &:-moz-placeholder {
            color: ${disabledColor};
            opacity: 1;
        }

        &:-ms-input-placeholder {
            color: ${disabledColor};
            opacity: 1;
        }
    }

    ${props =>
        props.trezorAction &&
        css`
            z-index: 10001; /* bigger than modal container */
            border-color: ${colors.WHITE};
            border-width: 2px;
            transform: translate(-1px, -1px);
            background: ${colors.DIVIDER};
            pointer-events: none;
        `}
`;

const TopLabel = styled.span`
    padding-bottom: 10px;
    color: ${colors.TEXT_SECONDARY};
`;

const BottomText = styled.span`
    margin-top: 10px;
    font-size: ${FONT_SIZE.SMALL};
    color: ${props => (props.color ? props.color : colors.TEXT_SECONDARY)};
`;

const getColor = inputState => {
    let color = '';
    if (inputState === 'success') {
        color = colors.SUCCESS_PRIMARY;
    } else if (inputState === 'warning') {
        color = colors.WARNING_PRIMARY;
    } else if (inputState === 'error') {
        color = colors.ERROR_PRIMARY;
    }
    return color;
};

const TrezorAction = styled.div`
    display: ${props => (props.action ? 'flex' : 'none')};
    align-items: center;
    margin: 0px 10px;
    padding: 0 14px 0 5px;
    position: absolute;
    background: black;
    bottom: -25px;
    color: ${colors.WHITE};
    border-radius: 5px;
    line-height: ${LINE_HEIGHT.TREZOR_ACTION};
    z-index: 10002;
    transform: translate(-1px, -1px);
`;

const ArrowUp = styled.div`
    position: absolute;
    top: -9px;
    left: 12px;
    width: 0;
    height: 0;
    border-left: 9px solid transparent;
    border-right: 9px solid transparent;
    border-bottom: 9px solid black;
    z-index: 10001;
`;

const TextArea = ({
    className,
    placeholder = '',
    value,
    customStyle = {},
    onFocus,
    onBlur,
    isDisabled,
    readOnly,
    name,
    onChange,
    topLabel,
    rows,
    maxRows,
    maxLength,
    autoSelect,
    state = '',
    bottomText = '',
    trezorAction = null,
}) => (
    <Wrapper className={className}>
        {topLabel && <TopLabel>{topLabel}</TopLabel>}
        <StyledTextarea
            spellCheck="false"
            autoCorrect="off"
            autoCapitalize="off"
            maxRows={maxRows}
            maxLength={maxLength}
            rows={rows}
            className={className}
            disabled={isDisabled}
            name={name}
            style={customStyle}
            onFocus={onFocus}
            onBlur={onBlur}
            value={value}
            readOnly={readOnly}
            onClick={autoSelect ? event => event.target.select() : null}
            placeholder={placeholder}
            onChange={onChange}
        />
        <TrezorAction action={trezorAction}>
            <ArrowUp />
            {trezorAction}
        </TrezorAction>
        {bottomText && <BottomText color={getColor(state)}>{bottomText}</BottomText>}
    </Wrapper>
);

TextArea.propTypes = {
    className: PropTypes.string,
    onFocus: PropTypes.func,
    onBlur: PropTypes.func,
    onChange: PropTypes.func,
    customStyle: PropTypes.string,
    placeholder: PropTypes.string,
    value: PropTypes.string,
    readOnly: PropTypes.bool,
    maxRows: PropTypes.number,
    maxLength: PropTypes.number,
    rows: PropTypes.number,
    name: PropTypes.string,
    isDisabled: PropTypes.bool,
    topLabel: PropTypes.node,
    state: PropTypes.string,
    autoSelect: PropTypes.bool,
    bottomText: PropTypes.string,
    trezorAction: PropTypes.node,
};

export default TextArea;