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| import { useCallback, useEffect, useMemo, useState } from "react";
type ShareScene = "session" | "timeline";
type SharePayload = { title: string; desc: string; link: string; imageUrl: string; };
type ShareStatus = "idle" | "preparing" | "success" | "failed";
function isWeChatBrowser() { const ua = navigator.userAgent || ""; return /MicroMessenger/i.test(ua); }
function isInApp() { return !!(window as any).Native || !!(window as any).NativeBridge; }
async function copyText(text: string) { await navigator.clipboard.writeText(text); }
async function appShare(payload: SharePayload, scene: ShareScene) { const Native = (window as any).Native; if (typeof Native !== "function") { throw new Error("bridge not found"); }
const res = await Native("share", { scene, title: payload.title, desc: payload.desc, link: payload.link, imageUrl: payload.imageUrl, });
if (!res || res.code !== 0) { throw new Error(res?.msg || "native share failed"); } }
function setupWeChatShare(payload: SharePayload) { const wx = (window as any).wx; if (!wx) throw new Error("wx sdk not ready");
wx.updateAppMessageShareData?.({ title: payload.title, desc: payload.desc, link: payload.link, imgUrl: payload.imageUrl, });
wx.updateTimelineShareData?.({ title: payload.title, link: payload.link, imgUrl: payload.imageUrl, }); }
async function webShareFallback(payload: SharePayload, scene: ShareScene) { if (navigator.share) { await navigator.share({ title: payload.title, text: payload.desc, url: payload.link, }); return; } await copyText(payload.link); }
export function useMobileShare(payload: SharePayload) { const [status, setStatus] = useState<ShareStatus>("idle");
const env = useMemo(() => { const wechat = isWeChatBrowser(); const app = isInApp(); return { wechat, app }; }, []);
useEffect(() => { if (!env.wechat) return; try { setupWeChatShare(payload); } catch { } }, [env.wechat, payload]);
const share = useCallback( async (scene: ShareScene = "session") => { setStatus("preparing"); try { if (env.app) { await appShare(payload, scene); setStatus("success"); return; }
if (env.wechat) { setupWeChatShare(payload); setStatus("success"); return; }
await webShareFallback(payload, scene); setStatus("success"); } catch (e) { setStatus("failed"); console.warn("share failed:", e); } }, [env.app, env.wechat, payload] );
return { share, status }; }
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