import { useSpring, animated, easings, to, useInView } from '@react-spring/web';
import React, { useEffect, useState } from 'react';
import { PresEffect, PresEffectDirection } from './PresEnums';
import './SlideEffect.scss';
import { Doc } from '../../../../fields/Doc';
import { NumCast } from '../../../../fields/Types';

interface Props {
    // pass in doc to extract width, height, bg
    doc: Doc;
    // wait for the transition movement to end before starting effect
    delay: number;
    dir: PresEffectDirection;
    presEffect: PresEffect;
    friction: number;
    tension: number;
    mass: number;
    children: React.ReactNode;
}

// TODO: add visibility detector when the slide comes into view
export default function SpringAnimation({ doc, delay, dir, friction, tension, mass, presEffect, children }: Props) {
    console.log('delay:', delay);
    const [springs, api] = useSpring(
        () => ({
            from: {
                x: 0,
                y: 0,
                opacity: 0,
                scale: 1,
            },
            config: {
                tension: tension,
                friction: friction,
                mass: mass,
            },
            onStart: () => {
                console.log('started');
            },
            onRest: () => {
                console.log('resting');
            },
        }),
        [tension, friction, mass]
    );
    const [ref, inView] = useInView({
        once: true,
    });

    //   Whether the animation is currently playing
    const [animating, setAnimating] = useState(false);

    const zoomConfig = {
        from: {
            scale: 0,
            x: 0,
            y: 0,
            opacity: 1,
        },
        to: {
            scale: 1,
            x: 0,
            y: 0,
            opacity: 1,
            config: {
                tension: tension,
                friction: friction,
                mass: mass,
            },
        },
    };

    const fadeConfig = {
        from: {
            opacity: 0,
            scale: 1,
            x: 0,
            y: 0,
        },
        to: {
            opacity: 1,
            scale: 1,
            x: 0,
            y: 0,
            config: {
                tension: tension,
                friction: friction,
                mass: mass,
            },
        },
    };

    const rotateConfig = {
        from: {
            x: 0,
        },
        to: {
            x: 360,
            config: {
                tension: tension,
                friction: friction,
                mass: mass,
            },
        },
    };

    const getBounceConfigFrom = () => {
        switch (dir) {
            case PresEffectDirection.Left:
                return {
                    from: {
                        opacity: 0,
                        x: -200,
                        y: 0,
                    },
                };
            case PresEffectDirection.Right:
                return {
                    from: {
                        opacity: 0,
                        x: 200,
                        y: 0,
                    },
                };
            case PresEffectDirection.Top:
                return {
                    from: {
                        opacity: 0,
                        x: 0,
                        y: -200,
                    },
                };
            case PresEffectDirection.Bottom:
                return {
                    from: {
                        opacity: 0,
                        x: 0,
                        y: 200,
                    },
                };
            default:
                return {
                    from: {
                        opacity: 0,
                        x: 0,
                        y: 0,
                    },
                };
        }
    };

    const bounceConfig = {
        ...getBounceConfigFrom(),
        to: [
            {
                opacity: 1,
                x: 0,
                y: 0,
                config: {
                    tension: tension,
                    friction: friction,
                    mass: mass,
                },
            },
        ],
    };

    // Flip
    // const flipConfig = {
    //     from: {
    //         // opacity: 0,
    //         transform: `perspective(600px) rotateX(0deg)`,
    //     },
    //     to: {
    //         // opacity: 1,
    //         transform: `perspective(600px) rotateX(180deg)`,
    //         config: {
    //             tension: tension,
    //             friction: friction,
    //             mass: mass,
    //         },
    //     },
    // };

    const flipConfig = {
        from: {
            x: 0,
        },
        to: {
            x: 180,
            config: {
                tension: tension,
                friction: friction,
                mass: mass,
            },
        },
    };

    // Switch animation depending on slide effect
    const startAnimation = () => {
        switch (presEffect) {
            case PresEffect.Bounce:
                api.start(bounceConfig);
                break;
            case PresEffect.Zoom:
                api.start(zoomConfig);
                break;
            case PresEffect.Rotate:
                api.start(rotateConfig);
                break;
            case PresEffect.Fade:
                api.start(fadeConfig);
                break;
            case PresEffect.Flip:
                api.start(flipConfig);
                break;
            case PresEffect.Roll:
                break;
            case PresEffect.Lightspeed:
                break;
            default:
                break;
        }
    };

    // const flipRender = () => {
    //     return (
    //         <div className="flip-container">
    //             <animated.div className={'flip-side flip-back'} style={{ opacity: opacity.to(o => 1 - o), transform }} />
    //             <animated.div
    //                 className={'flip-side flip-front'}
    //                 style={{
    //                     opacity,
    //                     transform,
    //                     rotateX: '180deg',
    //                 }}>
    //                 {children}
    //             </animated.div>
    //         </div>
    //     );
    // };

    const getRenderDoc = () => {
        switch (presEffect) {
            case PresEffect.Rotate:
                return (
                    <animated.div ref={ref} style={{ transform: to(springs.x, val => `rotate(${val}deg)`) }}>
                        {children}
                    </animated.div>
                );
            case PresEffect.Flip:
                return (
                    // Pass in doc dimensions
                    <div className="flip-container" ref={ref}>
                        {dir === PresEffectDirection.Bottom || dir === PresEffectDirection.Top ? (
                            <>
                                <animated.div className={'flip-side flip-back'} style={{ transform: to(springs.x, val => `perspective(600px) rotateX(${val}deg)`), width: NumCast(doc.width), height: NumCast(doc.height) }} />
                                <animated.div className={'flip-side flip-front'} style={{ transform: to(springs.x, val => `perspective(600px) rotateX(${val}deg)`), rotateX: '180deg', width: NumCast(doc.width), height: NumCast(doc.height) }}>
                                    {children}
                                </animated.div>
                            </>
                        ) : (
                            <>
                                <animated.div className={'flip-side flip-back'} style={{ transform: to(springs.x, val => `perspective(600px) rotateY(${val}deg)`), width: NumCast(doc.width), height: NumCast(doc.height) }} />
                                <animated.div className={'flip-side flip-front'} style={{ transform: to(springs.x, val => `perspective(600px) rotateY(${val}deg)`), rotateY: '180deg', width: NumCast(doc.width), height: NumCast(doc.height) }}>
                                    {children}
                                </animated.div>
                            </>
                        )}
                    </div>
                );
            default:
                return (
                    <animated.div
                        ref={ref}
                        style={{
                            ...springs,
                        }}>
                        {children}
                    </animated.div>
                );
        }
    };

    // useEffect(() => {
    //     // TODO: Control start with slide visibility instead
    //     setTimeout(() => {
    //         startAnimation();
    //     }, 200);
    // }, []);

    useEffect(() => {
        if (!inView) return;
        console.log('in view');
        // TODO: Control start with slide visibility instead
        setTimeout(() => {
            startAnimation();
        }, 100);
    }, [inView]);

    return <div>{getRenderDoc()}</div>;
}
