167 lines
7.2 KiB
TypeScript
167 lines
7.2 KiB
TypeScript
"use client";
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import { useEffect, useState } from "react";
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import { useParams, useRouter } from "next/navigation";
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import { Link, useTranslation } from "@/i18n/navigation";
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import { VideoPlayer } from "@/app/components/course/VideoPlayer";
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import { LessonMarkdown } from "./LessonMarkdown";
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import { getLesson } from "@/config/lessons";
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import { canWatchLesson } from "@/app/lib/course-payment";
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import { useAuthAndVip } from "@/app/lib/useAuthAndVip";
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import { setLastWatched, markCompleted } from "@/app/lib/learning";
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import { DOWNLOAD_CONFIG } from "@/config/course";
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import Header from "@/app/components/Header";
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export default function LessonPage() {
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const params = useParams();
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const router = useRouter();
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const { t } = useTranslation("community");
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const { vip } = useAuthAndVip();
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const [toast, setToast] = useState(false);
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const moduleIndex = Number(params.moduleIndex);
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const lessonIndex = Number(params.lessonIndex);
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const lesson = getLesson(moduleIndex, lessonIndex);
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const unlocked = canWatchLesson(moduleIndex, lessonIndex, vip);
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const isFreeTrial = moduleIndex === 0 && lessonIndex < 2;
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useEffect(() => {
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if (lesson && unlocked) setLastWatched(moduleIndex, lessonIndex, lesson.name);
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}, [moduleIndex, lessonIndex, lesson?.name, unlocked]);
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if (!lesson || isNaN(moduleIndex) || isNaN(lessonIndex)) {
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return (
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<div className="min-h-screen bg-[var(--background)]">
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<Header />
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<main className="pt-20 pb-16">
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<div className="mx-auto max-w-4xl px-4 py-16 text-center">
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<h1 className="mb-4 text-2xl font-bold">章节不存在</h1>
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<p className="mb-6 text-[var(--muted-foreground)]">
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请检查链接或返回课程首页
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</p>
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<Link
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href="/course"
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className="inline-flex items-center gap-2 rounded-full bg-[var(--accent)] px-6 py-3 font-medium text-[var(--accent-foreground)] transition hover:opacity-90"
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>
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← 返回首页
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</Link>
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</div>
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</main>
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</div>
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);
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}
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return (
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<div className="min-h-screen bg-[var(--background)] text-[var(--foreground)]">
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<Header />
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<main className="pt-14 pb-16 md:pt-16">
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<div className="mx-auto max-w-4xl px-4 sm:px-6">
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{/* 返回导航 */}
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<nav className="mb-6 flex items-center gap-2 text-sm">
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<button
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type="button"
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onClick={() => router.back()}
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className="flex items-center gap-1 text-[var(--muted-foreground)] transition hover:text-[var(--foreground)]"
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>
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<svg className="h-4 w-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
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<path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M15 19l-7-7 7-7" />
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</svg>
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返回
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</button>
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<span className="text-[var(--muted-foreground)]">/</span>
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<Link href="/course" className="text-[var(--muted-foreground)] transition hover:text-[var(--foreground)]">
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课程首页
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</Link>
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</nav>
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{/* 标题 */}
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<h1 className="mb-2 flex items-center gap-2 text-xl font-bold sm:text-2xl md:text-3xl">
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{lesson.name}
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{isFreeTrial && (
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<span className="rounded bg-[var(--accent)]/20 px-2 py-0.5 text-sm font-normal text-[var(--accent)]">
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试看
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</span>
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)}
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</h1>
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<p className="mb-8 text-sm text-[var(--muted-foreground)]">
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时长 {lesson.duration}
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</p>
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{/* 视频播放器 / 锁定 overlay */}
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<div className="relative mb-12">
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{unlocked ? (
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<VideoPlayer
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src={lesson.videoUrl}
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title={lesson.name}
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videoId={`course-${moduleIndex}-${lessonIndex}`}
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className="shadow-xl"
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onComplete={() => markCompleted(moduleIndex, lessonIndex)}
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/>
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) : (
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<div className="relative overflow-hidden rounded-xl bg-black md:rounded-2xl">
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<div className="aspect-video flex flex-col items-center justify-center gap-4 bg-zinc-900">
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<span className="text-6xl">🔒</span>
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<p className="text-lg text-white/90">报名解锁本章节</p>
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<Link
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href="/join"
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className="rounded-full bg-[var(--accent)] px-6 py-3 font-medium text-[var(--accent-foreground)] transition hover:opacity-90"
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>
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立即报名
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</Link>
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</div>
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</div>
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)}
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</div>
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{/* 配套文档 - 仅解锁后显示 */}
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{unlocked && (
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<div className="relative rounded-xl border border-[var(--border)] bg-[var(--card)] p-6 shadow-sm md:rounded-2xl md:p-8">
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<h2 className="mb-6 flex items-center gap-2 text-lg font-semibold">
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<svg className="h-5 w-5 text-[var(--accent)]" fill="none" stroke="currentColor" viewBox="0 0 24 24">
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<path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M9 12h6m-6 4h6m2 5H7a2 2 0 01-2-2V5a2 2 0 012-2h5.586a1 1 0 01.707.293l5.414 5.414a1 1 0 01.293.707V19a2 2 0 01-2 2z" />
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</svg>
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配套文档
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</h2>
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<LessonMarkdown content={lesson.markdown} />
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</div>
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)}
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{/* 网盘下载 */}
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{DOWNLOAD_CONFIG.enabled && unlocked && (
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<div className="mt-8 rounded-xl border border-[var(--border)] bg-[var(--card)] p-6 shadow-sm md:rounded-2xl md:p-8">
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<h2 className="mb-4 flex items-center gap-2 text-lg font-semibold">
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<svg className="h-5 w-5 text-[var(--accent)]" fill="none" stroke="currentColor" viewBox="0 0 24 24">
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<path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M4 16v1a3 3 0 003 3h10a3 3 0 003-3v-1m-4-4l-4 4m0 0l-4-4m4 4V4" />
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</svg>
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{DOWNLOAD_CONFIG.title}
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</h2>
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<p className="mb-4 text-sm text-[var(--muted-foreground)]">
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课程配套资料已上传至网盘，报名后可前往下载
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</p>
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<a
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href={DOWNLOAD_CONFIG.url}
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target="_blank"
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rel="noopener noreferrer"
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className="inline-flex items-center gap-2 rounded-full bg-[var(--accent)] px-6 py-3 font-medium text-[var(--accent-foreground)] transition hover:opacity-90"
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>
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{DOWNLOAD_CONFIG.buttonText}
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<svg className="h-4 w-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
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<path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M10 6H6a2 2 0 00-2 2v10a2 2 0 002 2h10a2 2 0 002-2v-4M14 4h6m0 0v6m0-6L10 14" />
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</svg>
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</a>
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</div>
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)}
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</div>
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</main>
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{toast && (
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<div
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className="fixed bottom-8 left-1/2 z-50 -translate-x-1/2 rounded-lg bg-slate-800 px-6 py-3 text-sm font-medium text-white shadow-lg dark:bg-slate-700"
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role="alert"
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>
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{t("updating")}
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</div>
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)}
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</div>
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);
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}
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