import type { JSX } from "react"
import { notFound } from "next/navigation"

import { requirePermission } from "@/shared/lib/auth-guard"
import { Permissions } from "@/shared/types/permissions"
import { getCoursePlanById } from "@/modules/course-plans/data-access"
import { CoursePlanDetail } from "@/modules/course-plans/components/course-plan-detail"

export const dynamic = "force-dynamic"

export default async function TeacherCoursePlanDetailPage({
  params,
}: {
  params: Promise<{ id: string }>
}): Promise<JSX.Element> {
  const ctx = await requirePermission(Permissions.COURSE_PLAN_READ)
  const { id } = await params
  // P0-1/P0-3：教师视角仅能查看自己负责的计划，避免信息泄露
  const plan = await getCoursePlanById(
    id,
    { userId: ctx.userId, isAdmin: false, teacherId: ctx.userId }
  )

  if (!plan) notFound()

  return (
    <div className="flex h-full flex-col space-y-6 p-8">
      <CoursePlanDetail
        plan={plan}
        backHref="/teacher/course-plans"
        successHref="/teacher/course-plans"
        textbooksHref="/teacher/textbooks"
        homeworkHref="/teacher/homework"
      />
    </div>
  )
}