1 files changed, 223 insertions, 0 deletions
diff --git a/src/components/Flashcard/Deck3.tsx b/src/components/Flashcard/Deck3.tsx
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+++ b/src/components/Flashcard/Deck3.tsx
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+"use client";
+
+import { CardResponse, DeckResponse } from "@/lib/types/cards";
+import React, {
+  ReactNode,
+  useCallback,
+  useEffect,
+  useState,
+  useTransition,
+} from "react";
+import { Button } from "../ui/button";
+import { ChevronLeftIcon, ChevronRightIcon, RotateCcwIcon } from "lucide-react";
+import "./cards.css";
+
+type CardData = {
+  id: number;
+  front: ReactNode;
+  back: ReactNode;
+};
+// --- Main App Component ---
+function Deck({ data, cards }: { data: any; cards: CardData[] }) {
+  const [currentPage, setCurrentPage] = useState<number>(0);
+  const [currentIndex, setCurrentIndex] = useState<number>(0);
+  const [isFlipped, setIsFlipped] = useState<boolean>(false);
+  const [animationDirection, setAnimationDirection] = useState<
+    "enter-left" | "enter-right" | "exit-left" | "exit-right" | "none"
+  >("none");
+  const [isAnimating, setIsAnimating] = useState<boolean>(false);
+
+  const handleFlip = () => {
+    if (isAnimating) return;
+    setIsFlipped(!isFlipped);
+  };
+
+  const handleNext = useCallback(() => {
+    if (isAnimating || currentIndex >= cards.length - 1) return;
+    setIsAnimating(true);
+    setIsFlipped(false); // Flip back to front before changing card
+    setAnimationDirection("exit-left");
+
+    setTimeout(() => {
+      setCurrentIndex((prevIndex) => Math.min(prevIndex + 1, cards.length - 1));
+      setAnimationDirection("enter-right");
+      setTimeout(() => {
+        setAnimationDirection("none");
+        setIsAnimating(false);
+      }, 200); // Duration of enter animation
+    }, 200); // Duration of exit animation
+  }, [currentIndex, cards.length, isAnimating]);
+
+  const handlePrev = useCallback(() => {
+    if (isAnimating || currentIndex <= 0) return;
+    setIsAnimating(true);
+    setIsFlipped(false); // Flip back to front
+    setAnimationDirection("exit-right");
+
+    setTimeout(() => {
+      setCurrentIndex((prevIndex) => Math.max(prevIndex - 1, 0));
+      setAnimationDirection("enter-left");
+      setTimeout(() => {
+        setAnimationDirection("none");
+        setIsAnimating(false);
+      }, 200); // Duration of enter animation
+    }, 200); // Duration of exit animation
+  }, [currentIndex, isAnimating]);
+
+  // Keyboard navigation
+  useEffect(() => {
+    const handleKeyDown = (event: KeyboardEvent) => {
+      if (isAnimating) return;
+      if (event.key === "ArrowRight") {
+        handleNext();
+      } else if (event.key === "ArrowLeft") {
+        handlePrev();
+      } else if (event.key === " " || event.key === "Enter") {
+        // Space or Enter to flip
+        event.preventDefault(); // Prevent scrolling if space is pressed
+        handleFlip();
+      }
+    };
+
+    window.addEventListener("keydown", handleKeyDown);
+    return () => {
+      window.removeEventListener("keydown", handleKeyDown);
+    };
+  }, [handleNext, handlePrev, isAnimating]);
+
+  const [isPending, startTransition] = useTransition();
+  const shuffle = () => {
+    startTransition(async () => {
+      "use server";
+      console.log("shuffling deck...");
+    });
+  };
+
+  if (cards.length === 0) {
+    return (
+      <div className="min-h-screen bg-slate-50 dark:bg-slate-900 flex flex-col items-center justify-center p-4 font-inter text-slate-800 dark:text-slate-200">
+        <p>No flashcards available.</p>
+      </div>
+    );
+  }
+
+  const currentCard = cards[currentIndex];
+  if (!currentCard) return <p>wtf</p>;
+
+  return (
+    <div className="min-h-screen bg-slate-100 dark:bg-slate-900 flex flex-col items-center justify-center p-4 font-inter transition-colors duration-300">
+      <header>
+        <h1 className="text-2xl ">Deck: {data.lesson.name}</h1>
+        <p>{data.lesson.description}</p>
+      </header>
+      <div className="w-full max-w-md mb-8 relative">
+        {/* This div is for positioning the card and managing overflow during animations */}
+        <div className="relative h-80">
+          <FlashCard
+            key={currentCard.id} // Important for re-rendering on card change with animation
+            isFlipped={isFlipped}
+            onFlip={handleFlip}
+            animationDirection={animationDirection}
+            front={currentCard.front}
+            back={currentCard.back}
+          />
+        </div>
+      </div>
+
+      <div className="flex items-center justify-between w-full max-w-md mb-6">
+        <Button
+          onClick={handlePrev}
+          disabled={currentIndex === 0 || isAnimating}
+          variant="outline"
+          size="icon"
+          aria-label="Previous card"
+        >
+          <ChevronLeftIcon />
+        </Button>
+        <div className="text-center">
+          <p className="text-sm text-slate-600 dark:text-slate-400">
+            Card {currentIndex + 1} of {cards.length}
+          </p>
+          <Button
+            onClick={handleFlip}
+            variant="ghost"
+            size="sm"
+            className="mt-1 text-slate-600 dark:text-slate-400"
+            disabled={isAnimating}
+          >
+            <RotateCcwIcon className="w-4 h-4 mr-2" /> Flip Card
+          </Button>
+        </div>
+        <Button
+          onClick={handleNext}
+          disabled={currentIndex === cards.length - 1 || isAnimating}
+          variant="outline"
+          size="icon"
+          aria-label="Next card"
+        >
+          <ChevronRightIcon />
+        </Button>
+      </div>
+
+      <div className="text-xs text-slate-500 dark:text-slate-400 mt-8">
+        Use Arrow Keys (← →) to navigate, Space/Enter to flip.
+      </div>
+      <Button onClick={shuffle}>Shuffle Deck</Button>
+    </div>
+  );
+}
+
+export default Deck;
+
+interface FlashcardProps {
+  isFlipped: boolean;
+  onFlip: () => void;
+  animationDirection:
+    | "enter-left"
+    | "enter-right"
+    | "exit-left"
+    | "exit-right"
+    | "none";
+}
+interface ServerCards {
+  front: ReactNode;
+  back: ReactNode;
+}
+
+function FlashCard({
+  isFlipped,
+  onFlip,
+  animationDirection,
+  front,
+  back,
+}: FlashcardProps & ServerCards) {
+  const getAnimationClass = () => {
+    switch (animationDirection) {
+      case "enter-right":
+        return "animate-slide-in-right";
+      case "enter-left":
+        return "animate-slide-in-left";
+      case "exit-right":
+        return "animate-slide-out-right";
+      case "exit-left":
+        return "animate-slide-out-left";
+      default:
+        return "";
+    }
+  };
+  return (
+    <div
+      className={`w-full max-w-md h-80 perspective group ${getAnimationClass()}`}
+      onClick={onFlip}
+    >
+      <div
+        className={`relative w-full h-full rounded-xl shadow-xl transition-transform duration-700 ease-in-out transform-style-preserve-3d cursor-pointer ${
+          isFlipped ? "rotate-y-180" : ""
+        }`}
+      >
+        {front}
+        {back}
+      </div>
+    </div>
+  );
+}