feat: add modular Burn, Share, and PostAction components to the Reader page flow

frontend/src/components/reader/BurnModal.tsx

@@ -0,0 +1,99 @@
+import { CampfireIcon, FlameIcon, XCircleIcon } from "@phosphor-icons/react";
+import { useEffect, useState } from "react";
+
+export function BurnModal({
+  burnLetter,
+  isBurning,
+  setShowBurnModal,
+  setRevealState,
+}) {
+  const [flameOn, setFlameOn] = useState(0);
+  const [rotate, setRotate] = useState(0);
+  const [burnClicked, setBurnClicked] = useState(false);
+  useEffect(() => {
+    if (!burnClicked) return;
+    if (flameOn === 100) {
+      setRevealState("sealed");
+      burnLetter();
+    }
+    const interval = setInterval(() => {
+      setFlameOn((prev) => prev + 1);
+      setRotate(Math.random() * 4 - 2);
+    }, 100);
+    return () => clearInterval(interval);
+  }, [burnClicked, flameOn, setRevealState, burnLetter]);
+
+  const burnStyle = flameOn < 30 ? "" : `contrast(${flameOn / 30})`;
+
+  return (
+    <div className="modal modal-open modal-middle bg-base-100/20 backdrop-blur-md">
+      <div
+        className={`modal-box flex flex-col items-center gap-4 py-8 text-center transition-all duration-200 ease-in-out ${burnClicked ? "animate-[pulse_15s_linear_infinite]" : ""}`}
+        style={
+          {
+            transform: `rotate(${rotate}deg)`,
+          } as React.CSSProperties
+        }
+      >
+        <button
+          type="button"
+          className="btn btn-sm btn-circle btn-ghost absolute right-2 top-2"
+          onClick={() => setShowBurnModal(false)}
+          aria-label="Close"
+        >
+          <XCircleIcon size={18} weight="bold" />
+        </button>
+        <CampfireIcon
+          size={48}
+          weight="duotone"
+          className="text-error animate-pulse"
+        />
+        <h3 className="font-serif text-2xl">
+          Are you ready to burn this letter?
+        </h3>
+        <p className="text-sm font-sans text-base-content/80 mt-4">
+          Some words are meant to be unsaid, but they don't have to linger
+          forever.
+          <br />
+          Let the echoes of your unsaid be finally released.
+        </p>
+        <div className="mt-4 font-sans text-sm">
+          <span className="text-error">Press</span> and{" "}
+          <span className="text-error">hold</span> the{" "}
+          <span className="text-amber-300">flame</span> to proceed.
+        </div>
+        <div className="modal-action w-full justify-center gap-3 mt-2">
+          <div
+            className="absolute -mt-2 w-28 h-28 radial-progress pointer-events-none text-amber-200/60"
+            style={
+              { "--value": flameOn, filter: burnStyle } as React.CSSProperties
+            }
+            role="progressbar"
+          ></div>
+          <button
+            type="button"
+            className={`btn btn-error btn-dashed btn-circle w-24 h-24`}
+            style={
+              {
+                filter: burnStyle,
+                cursor: burnClicked ? "grabbing" : "grab",
+              } as React.CSSProperties
+            }
+            onMouseDown={() => setBurnClicked(true)}
+            onMouseUp={() => {
+              setFlameOn(0);
+              setBurnClicked(false);
+            }}
+            disabled={isBurning}
+          >
+            {isBurning ? (
+              <span className="loading loading-spinner loading-xs" />
+            ) : (
+              <FlameIcon size={54} weight="duotone" />
+            )}
+          </button>
+        </div>
+      </div>
+    </div>
+  );
+}

frontend/src/components/reader/PostActionOverlay.tsx

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+import { useNavigate } from "react-router-dom";
+import { ROUTES } from "../../config/routes";
+
+export function PostActionOverlay({ revealState }) {
+  const navigate = useNavigate();
+  return (
+    <div
+      className={`flex flex-col items-center justify-center min-h-screen bg-base-100 ${revealState === "burned" ? "opacity-100" : "opacity-0"} transition-all delay-300 duration-1000`}
+    >
+      <h1
+        className={`text-6xl ${revealState === "burned" ? "opacity-100" : "opacity-0"} lg:text-9xl italic font-extralight text-base-content animate-[pulse_3s_ease-in-out_3]`}
+      >
+        It is done
+      </h1>
+      <div
+        className={`text-xl ${revealState === "burned" ? "opacity-100" : "opacity-0"} lg:text-4xl text-center font-extralight text-base-content font-display mt-8 delay-3000 transition-all duration-2000 tracking-wide`}
+      >
+        <p className="w-full">
+          May your <span className="italic text-primary">soul</span> find
+          solace,
+          <br />
+          just like your <span className="text-accent italic">unsaid</span>{" "}
+          words did.
+        </p>
+        <div className="divider mx-auto w-24 text-center"></div>
+        <button
+          type="button"
+          className="btn btn-ghost text-sm text-neutral-content/60 font-sans"
+          onClick={() => navigate(ROUTES.DRAWER)}
+        >
+          Turn the page
+        </button>
+      </div>
+    </div>
+  );
+}

frontend/src/components/reader/ShareModal.tsx

@@ -0,0 +1,70 @@
+import {
+  EyeSlashIcon,
+  PaperPlaneTiltIcon,
+  XCircleIcon,
+} from "@phosphor-icons/react";
+
+export function ShareModal({ shareLink, setShareLink }) {
+  const copyToClipboard = async () => {
+    if (!shareLink) return;
+    await navigator.clipboard.writeText(shareLink);
+  };
+  return (
+    <div className="modal modal-open modal-middle bg-base-100/20 backdrop-blur-md z-100">
+      <div className="modal-box bg-base-100 border border-base-content/5 shadow-2xl relative">
+        <button
+          type="button"
+          className="btn btn-sm btn-circle btn-ghost absolute right-2 top-2"
+          onClick={() => setShareLink(null)}
+          aria-label="Close"
+        >
+          <XCircleIcon size={18} weight="bold" />
+        </button>
+        <div className="flex flex-col items-center justify-center text-center gap-6 py-4">
+          <div className="space-y-2">
+            <PaperPlaneTiltIcon
+              size={48}
+              weight="bold"
+              className="mb-4 text-primary mx-auto animate-[bounce_3s_ease-in-out_infinite]"
+            />
+            <h3 className="font-serif text-3xl">Send this letter</h3>
+            <p className="text-base-content/80 text-sm font-sans mt-4">
+              You've carried these words long enough. Send your letter now, and
+              let the <span className="text-accent font-display">unsaid</span>{" "}
+              finally find its home.
+            </p>
+            <div className="divider mx-auto" />
+            <blockquote className="text-sm info text-neutral-content/60 font-sans">
+              The recipient will have the same viewing experience like you do
+              now.
+            </blockquote>
+          </div>
+          <div className="w-full flex items-center gap-2 bg-base-300 p-2 rounded-xl">
+            <input
+              id="share-link-input"
+              readOnly
+              value={shareLink ?? ""}
+              className="flex-1 bg-transparent text-xs font-mono px-2 overflow-hidden text-ellipsis whitespace-nowrap outline-none"
+            />
+            <button
+              type="button"
+              onClick={copyToClipboard}
+              className="btn btn-primary font-sans btn-sm rounded-tl-xl rounded-bl-xl rounded-tr-full rounded-br-full"
+            >
+              Copy
+            </button>
+          </div>
+          <div className="flex flex-col gap-1 uppercase tracking-widest text-base-content/30 font-sans">
+            <p className="textarea-xs flex items-center justify-center">
+              <EyeSlashIcon weight="duotone" size={18} className="mr-2" />{" "}
+              Zero-Knowledge Share:
+            </p>
+            <p className="textarea-xs font-mono text-center">
+              The key never leaves your or the recipient's browser.
+            </p>
+          </div>
+        </div>
+      </div>
+    </div>
+  );
+}