import { Image } from '@/components'
import { cn, getBackgroundImage, getStaticImage } from '@/lib/utils'
import { useMemo } from 'react'
import { useNavigate, useParams } from 'react-router-dom'
import { LOBBY_COLUMNS, LOBBY_LAYOUT, LOBBY_TIMELINE, PLACE_REQUIRED_COUNTS } from './lobby.config'
import { useNieerStore } from '@/store/nieerStore'
import { useDialogReducer } from './useDialogReducer'
import DialogLayer from './DialogLayer'

const starName = 'nieer'

const NieerReflection = () => {
  const navigate = useNavigate()
  const { moduleName } = useParams<{ moduleName: string }>()
  const debugLobby = new URLSearchParams(window.location.search).get('debugLobby') === '1'
  const visitedReflectionCursors = useNieerStore((state) => state.visitedReflectionCursors)
  const markReflectionCursorVisited = useNieerStore((state) => state.markReflectionCursorVisited)
  const setReflectionWork = useNieerStore((state) => state.setReflectionWork)

  const {
    state: dialogState,
    openScene,
    enterUnlock,
    handleShare,
    close,
  } = useDialogReducer(markReflectionCursorVisited, setReflectionWork)

  const placeCompletion = useMemo(() => {
    const getVisitedCount = (placeName: string): number =>
      visitedReflectionCursors[placeName]?.size ?? 0
    return {
      1: getVisitedCount('place1') >= (PLACE_REQUIRED_COUNTS[1] ?? 0),
      2: getVisitedCount('place2') >= (PLACE_REQUIRED_COUNTS[2] ?? 0),
      3: getVisitedCount('place3') >= (PLACE_REQUIRED_COUNTS[3] ?? 0),
      4: getVisitedCount('place4') >= (PLACE_REQUIRED_COUNTS[4] ?? 0),
      5: getVisitedCount('place5') >= (PLACE_REQUIRED_COUNTS[5] ?? 0),
      6: getVisitedCount('place6') >= (PLACE_REQUIRED_COUNTS[6] ?? 0),
    } as const
  }, [visitedReflectionCursors])

  const unlockedById = useMemo(
    () =>
      ({
        1: true,
        2: placeCompletion[1],
        3: placeCompletion[2],
        4: placeCompletion[3],
        5: placeCompletion[4],
        6: placeCompletion[5],
      }) as const,
    [placeCompletion]
  )

  const badgeUnlocked = useMemo(
    () => ({
      1: placeCompletion[1] && placeCompletion[2],
      2: placeCompletion[3] && placeCompletion[4],
      3: placeCompletion[5] && placeCompletion[6],
    }),
    [placeCompletion]
  )

  const guideSceneId = useMemo(() => {
    const nextScene = LOBBY_COLUMNS.find(
      (scene) => !placeCompletion[scene.id as keyof typeof placeCompletion]
    )
    return nextScene?.id ?? 6
  }, [placeCompletion])
  const allPlacesCompleted = useMemo(
    () => LOBBY_COLUMNS.every((scene) => placeCompletion[scene.id as keyof typeof placeCompletion]),
    [placeCompletion]
  )

  if (!moduleName) return null

  return (
    <div
      className="w-full h-full relative bg-cover bg-center bg-no-repeat overflow-hidden"
      style={{ backgroundImage: getBackgroundImage(`${starName}/reflection/lobby/场景首页底图`) }}
    >
      {/* 返回按钮 */}
      <Image
        className="absolute right-6 top-5 z-30"
        src={getStaticImage('components/返回')}
        button
        onClick={() => navigate(`/${moduleName}/${starName}/home`)}
      />

      {/* 六列时间轴内容 */}
      <div
        className={cn(
          'absolute h-full grid z-1',
          LOBBY_LAYOUT.columnsTop,
          LOBBY_LAYOUT.columnsLeft
        )}
        style={{
          width: `${LOBBY_LAYOUT.columnsWidthPx}px`,
          gridTemplateColumns: `repeat(${LOBBY_LAYOUT.columnCount}, minmax(0, 1fr))`,
        }}
      >
        {/* 琴弦层：在背景图之上、在顶部图标之下 */}
        <img
          className="absolute -left-65 top-0 z-2 w-[1651px] h-auto pointer-events-none"
          src={getStaticImage(`${starName}/reflection/lobby/menu/琴弦`)}
          alt="琴弦"
        />
        {LOBBY_COLUMNS.map((scene) => {
          const isUnlocked = unlockedById[scene.id as keyof typeof unlockedById]
          // 顶部图标只在“该模块已完成学习任务”时亮起；未完成（即当前进度）保持黑白
          const isCompleted = placeCompletion[scene.id as keyof typeof placeCompletion]
          const iconSrc = isCompleted ? scene.icon : scene.iconBw
          const isClickable = isUnlocked || scene.id === guideSceneId
          const showGuideState = !allPlacesCompleted && scene.id === guideSceneId

          return (
            <button
              key={scene.id}
              type="button"
              className={cn(
                'relative w-[220px] h-full flex flex-col items-center',
                !isClickable && 'pointer-events-none cursor-not-allowed',
                showGuideState && 'border-l-6 border-r-6 border-white'
              )}
              onClick={() => {
                if (!isClickable) return
                openScene(scene.id, !!isUnlocked)
              }}
            >
              <Image
                className={cn('absolute inset-0 -z-1', !isUnlocked && 'brightness-50')}
                src={getStaticImage(`${starName}/reflection/lobby/${scene.cityImage}`)}
                alt={scene.city}
              />
              {/* 顶部图标 */}
              <div
                className={cn(
                  'relative z-3',
                  'w-[233px] h-[233px] flex items-center justify-center -mt-13'
                )}
              >
                <div className="relative w-[112px] h-[111px]">
                  {showGuideState && (
                    <span
                      className={cn(
                        ' absolute -z-3 left-0 inline-flex h-full w-full rounded-full',
                        'bg-[#fcc419] opacity-100 animate-ping',
                        'border-2 border-white drop-shadow-2xl'
                      )}
                    />
                  )}
                  <img
                    className="w-full"
                    src={getStaticImage(`${starName}/reflection/lobby/menu/${iconSrc}`)}
                    alt={scene.icon}
                  />
                </div>
              </div>

              {/* 点击前往（当前引导场景） */}
              {showGuideState && (
                <>
                  <Image
                    className="animate-finger-bounce absolute bottom-[calc(50%-200px)] translate-y-1/2"
                    src={getStaticImage(`${starName}/reflection/lobby/icon/点击前往`)}
                    alt="点击前往"
                  />
                </>
              )}
            </button>
          )
        })}
      </div>

      {/* 横跨年份层：只负责 1937 跨列展示 */}
      <div
        className={cn('absolute z-10 grid', LOBBY_LAYOUT.timelineTop, LOBBY_LAYOUT.columnsLeft)}
        style={{
          width: `${LOBBY_LAYOUT.columnsWidthPx}px`,
          gridTemplateColumns: `repeat(${LOBBY_LAYOUT.columnCount}, minmax(0, 1fr))`,
        }}
      >
        {LOBBY_TIMELINE.map((item) => {
          if (item.type === 'single') {
            return (
              <div
                key={`${item.type}-${item.col}-${item.label}`}
                className="text-center text-4xl font-semibold text-white [text-shadow:0_0_20px_rgb(247_214_97_/0.8),0_0_20px_rgb(247_214_97/0.8)]"
                style={{ gridColumn: `${item.col + 1} / span 1` }}
              >
                {item.label}
              </div>
            )
          }

          return (
            <div
              key={`${item.type}-${item.colStart}-${item.colEnd}-${item.label}`}
              className="flex items-center justify-center gap-3 text-4xl font-semibold text-white [text-shadow:0_0_20px_rgb(247_214_97_/0.8),0_0_20px_rgb(247_214_97/0.8)]"
              style={{ gridColumn: `${item.colStart + 1} / ${item.colEnd + 2}` }}
            >
              {item.withLine && <span className="h-[2px] w-24 bg-[#f5e9c7]/80" />}
              <span>{item.label}</span>
              {item.withLine && <span className="h-[2px] w-24 bg-[#f5e9c7]/80" />}
            </div>
          )
        })}
      </div>

      {/* 底部 footer + 徽章区 */}
      <div
        className="absolute left-0 bottom-0 w-full h-[201px] z-20 flex justify-center items-center pt-20 gap-10"
        style={{
          backgroundImage: getBackgroundImage(`${starName}/reflection/lobby/footer`),
        }}
      >
        <div className="relative w-340 h-full">
          {[
            {
              id: 1,
              className: 'top-0 left-36',
            },
            {
              id: 2,
              className: 'top-0 left-146',
            },
            {
              id: 3,
              className: 'top-0 right-36',
            },
          ].map((i) => {
            const isLit = badgeUnlocked[i.id as keyof typeof badgeUnlocked]
            return (
              <div key={i.id} className={cn('absolute w-[193px]', i.className)}>
                <Image
                  width={193}
                  src={getStaticImage(`${starName}/reflection/lobby/icon/徽章底板`)}
                  alt="徽章底板"
                />
                {isLit && (
                  <Image
                    className="absolute inset-0"
                    width={193}
                    src={getStaticImage(`${starName}/reflection/lobby/icon/徽章${i.id}`)}
                    alt={`徽章${i.id}`}
                  />
                )}
              </div>
            )
          })}
        </div>
      </div>

      {/* 右下角：旅行箱 */}
      <Image
        button
        src={getStaticImage(`${starName}/reflection/lobby/icon/旅行箱`)}
        className="absolute right-0 bottom-0 z-30"
        alt="旅行箱"
        onClick={() => navigate(`/${moduleName}/${starName}/reflection/box`)}
      />

      {/* debug 参考线 */}
      {debugLobby && (
        <div
          className="absolute inset-0 z-40 pointer-events-none"
          style={{
            background:
              'linear-gradient(to right, rgba(255,0,0,0.25) 1px, transparent 1px), linear-gradient(to bottom, rgba(0,255,255,0.18) 1px, transparent 1px)',
            backgroundSize: '120px 100%, 100% 80px',
          }}
        />
      )}

      <DialogLayer
        state={dialogState}
        onEnterUnlock={enterUnlock}
        onShare={handleShare}
        onClose={close}
      />
    </div>
  )
}

export default NieerReflection