import { timeFormatter, timeRangeFormatter, TXCalendarEvent } from "@core/app/theme/scheduleView";
import { useEffect, useState, useRef } from "react";
import { DaySchedule } from "react-schedule-view";
import style from "../../theme/scheduleView.module.css";
import Avatar from "@components/Avatar/Avatar";

export interface CalendarRowViewProps {
    daySchedules: DaySchedule<TXCalendarEvent>[];
    handleEventClick: (event: TXCalendarEvent) => void;
    onEventLongPress?: (event: TXCalendarEvent) => void;
}

type CalendarRowViewData = {
    name: string;
    events: TXCalendarEvent[];
};

// Custom component to manage long press state per item
function EventItem({
    item,
    onClick,
    onLongPress,
}: {
    item: TXCalendarEvent;
    onClick: () => void;
    onLongPress?: () => void;
}) {
    const timerRef = useRef<NodeJS.Timeout | null>(null);
    const isLongPress = useRef(false);
    const isScrolling = useRef(false);
    const startPos = useRef({ x: 0, y: 0 });
    const [pressed, setPressed] = useState(false);

    const getAvatar = (data: string | undefined) => {
        let imageAvatar = "";
        if (data) {
            imageAvatar = data;
        }
        return imageAvatar;
    };

    const startPress = (e: React.TouchEvent<HTMLDivElement> | React.MouseEvent<HTMLDivElement>) => {
        isLongPress.current = false;
        isScrolling.current = false;
        if ('touches' in e) {
            startPos.current = { x: e.touches[0].clientX, y: e.touches[0].clientY };
        }
        setPressed(true);
        timerRef.current = setTimeout(() => {
            isLongPress.current = true;
            setPressed(false);
            if (window.navigator && window.navigator.vibrate) {
                window.navigator.vibrate(50); // Haptic feedback
            }
            if (onLongPress) {
                onLongPress();
            }
        }, 500);
    };

    const handleTouchMove = (e: React.TouchEvent<HTMLDivElement>) => {
        if (!isScrolling.current) {
            const moveX = e.touches[0].clientX;
            const moveY = e.touches[0].clientY;
            if (
                Math.abs(moveX - startPos.current.x) > 10 ||
                Math.abs(moveY - startPos.current.y) > 10
            ) {
                isScrolling.current = true;
                cancelPress();
            }
        }
    };

    const cancelPress = () => {
        setPressed(false);
        if (timerRef.current) {
            clearTimeout(timerRef.current);
            timerRef.current = null;
        }
    };

    const handleClick = () => {
        cancelPress();
        if (!isLongPress.current) {
            onClick();
        }
    };

    return (
        <div
            style={{
                transform: pressed ? "scale(0.97)" : "scale(1)",
                transition: "transform 100ms ease",

                cursor: "pointer",
                backgroundColor: item.color,
                padding: "10px",
                borderRadius: "5px",
                color: "var(--white)",
                fontWeight: "bold",
                marginLeft: "10px",
                marginRight: "10px",
                marginBottom: "5px",
                opacity: item.appointmentId ? 1 : 0.6,
                userSelect: "none",
                WebkitUserSelect: "none",
            }}
            onTouchStart={startPress}
            onTouchEnd={cancelPress}
            onTouchMove={handleTouchMove}
            onTouchCancel={cancelPress}
            onMouseDown={startPress}
            onMouseUp={cancelPress}
            onMouseLeave={cancelPress}
            onClick={handleClick}
            onContextMenu={(e) => e.preventDefault()} // Prevent context menu on long press
        >
            <div>
                <div className={style.turnosXpressTitleContent}>
                    <Avatar
                        src={getAvatar(item.avatar)}
                        alt={item.title}
                        size="super-small"
                        border="none"
                        style={{ minWidth: "32px" }}
                    />
                    <h1>{item.title}</h1>
                </div>
                <div className={style.turnosXpressTimeContent}>
                    {timeRangeFormatter(item.startTime, item.endTime)}
                    {item.payment && (
                        <span style={{ marginLeft: "5px", marginTop: "5px" }}>💰</span>
                    )}
                </div>
            </div>
        </div>
    );
}

export default function CalendarRowView(props: CalendarRowViewProps) {
    const {
        daySchedules = [
            {
                name: "",
                events: [],
            },
        ],
        handleEventClick = () => {},
        onEventLongPress,
    } = props;

    const [data, setData] = useState<CalendarRowViewData[]>([]);

    const getTimeHeader = (event: TXCalendarEvent): string => {
        return timeFormatter(event.startTime);
    };

    useEffect(() => {
        const auxData: CalendarRowViewData[] = [];
        for (const item of daySchedules[0].events) {
            const time = getTimeHeader(item);
            const check = auxData.find((x) => x.name === time);

            if (check) {
                check.events.push(item);
            } else {
                auxData.push({
                    name: time,
                    events: [item],
                });
            }
        }
        setData(auxData.sort((a, b) => a.name.localeCompare(b.name)));
    }, [daySchedules]);

    return (
        <>
            {data.map((event: CalendarRowViewData) => {
                return (
                    <div
                        key={event.name}
                        style={{
                            display: "flex",
                            flexDirection: "row",
                            width: "100%",
                            marginLeft: "5px",
                        }}
                    >
                        <div
                            style={{
                                fontWeight: "bold",
                                color: "var(--gray-black)",
                                width: "80px",
                            }}
                        >
                            {event.name}
                        </div>
                        <div style={{ width: "100%" }}>
                            {event.events.map((item: TXCalendarEvent) => (
                                <EventItem
                                    key={item.appointmentId || item.repeatId}
                                    item={item}
                                    onClick={() => handleEventClick(item)}
                                    onLongPress={() => {
                                        if (onEventLongPress && item.appointmentId) {
                                            onEventLongPress(item);
                                        }
                                    }}
                                />
                            ))}
                        </div>
                    </div>
                );
            })}
        </>
    );
}