import * as React from "react";
import { Card as AntCard } from "antd";
import Loader from "../loader/Loader";
import Spacing from "../spacing/Spacing";
import Text from '../text/Text';
import Image from '../image/Image';
import Link from '../link/Link';
import CheckCircleIcon from "../icon/CheckCircleIcon";
import WarningIcon from "../icon/WarningIcon";
import IIconProps from "../icon/IIconProps";
import WarningCircleIcon from "../icon/WarningCircleIcon";

export interface ICardProps {
    /** Card title */
    title?: React.ReactNode;

    /** Title icon */
    icon?: React.ReactElement<IIconProps>;

    /** Card type. Default is "normal." "success", "attention", and "error" override the icon prop */
    type?: "normal" | "success" | "error" | "attention";

    /** Card description below the title */
    description?: string;

    /** Content to the right of the card title */
    extra?: React.ReactNode;

    /** Cover image src. Cannot be used with title */
    image?: string;

    /** Card footer. Requires children to be set */
    footer?: React.ReactNode;

    /** Remove body padding */
    removeBodyPadding?: boolean;

    /** Min height of the card, excluding the height of the title or image */
    height?: number | string;

    /** Trigger an action on card click. Cannot be used with href */
    onClick?: () => void;

    /** Trigger a link on card click. Cannot be used with onClick */
    href?: string;

    /** Show loading mask */
    loading?: boolean;

    /** Add selected style */
    selected?: boolean;
}

/** Cards structure content like text, forms, and tables. */
const Card: React.FC<ICardProps> = (props) => {
    const { removeBodyPadding, loading, selected, type, image, description, height, onClick, href, ...validProps } = props;

    let className = "tempo-card";
    if (removeBodyPadding || !validProps.children) {
        className += " tempo-card--body-no-padding";
    }
    if (selected) {
        className += " tempo-card--selected"
    }

    let title = validProps.title;
    if (title) {
        title = <Text.Heading level={3}>{title}</Text.Heading>;

        if (description) {
            title = (
                <Spacing column padding={"12px 0"}>
                    {title}
                    <Text color="secondary">{description}</Text>
                </Spacing>
            );
        }

        let icon: React.ReactElement<IIconProps> | null = null;

        if (props.icon) {
            icon = React.cloneElement(props.icon, {
                size: props.icon.props.size || 20,
            });
        }

        if (type === "success") {
            icon = <CheckCircleIcon color='success' size={20} />
        } else if (type === "error") {
            icon = <WarningIcon color='error' size={20} />;
        }
        else if (type === "attention") {
            icon = <WarningCircleIcon color='attention' size={20} />;
        }

        if (icon != null) {
            title = (
                <Spacing vAlign="center" itemSpacing={8}>
                    {icon}
                    {title}
                </Spacing>
            );
        }
    }

    let extra = validProps.extra;

    let cover;
    if (!title && image) {
        cover = <Image src={image} height={180} border="bottom" backgroundColor="#F5F5F5" />;
    }

    let contents = validProps.children;
    if (contents) {
        contents = <div style={{ minHeight: height }}>{contents}</div>;

        if (validProps.footer) {
            contents = (
                <div className="tempo-card-contents-and-footer" style={{ minHeight: height }}>
                    <div>{validProps.children}</div>
                    <div className="tempo-card-footer">{validProps.footer}</div>
                </div>
            );
        }
    }

    let tabIndex, onKeyPress;
    if (onClick && !loading) {
        tabIndex = 0;

        onKeyPress = (e: React.KeyboardEvent<HTMLDivElement>) => {
            e.key === 'Enter' && onClick();
        }
    }

    Object.assign(validProps, {
        hoverable: props.onClick || href
    });

    const card = <AntCard {...validProps}
        onClick={onClick}
        onKeyPress={onKeyPress}
        tabIndex={tabIndex}
        title={title}
        extra={extra}
        cover={cover}
        className={className}>{contents}</AntCard>;

    return (
        <Loader loading={loading}>
            {href ? <Link href={href}>{card}</Link> : card}
        </Loader>
    );
}

export default Card;