Scoreboard/web/src/display/components/TickerBar.vue

<script setup lang="ts">
import { computed, onUnmounted, ref, watch } from 'vue'
import { useScoreboard } from '../useScoreboard'

type TickerKind = 'medals' | 'results' | 'announcement'

interface TickerItem {
  key: TickerKind
  label: string
}

const { standings, latestResults, announcement, detail, settings } = useScoreboard()

// 与团体奖牌榜页同一口径：按服务端名次（总分优先）取前 3，不在前端按金→银→铜重排。
const topMedals = computed(() => standings.value.slice(0, 3))

const latestGroup = computed(() => latestResults.value[0] ?? null)

const items = computed<TickerItem[]>(() => {
  const result: TickerItem[] = []
  if (topMedals.value.length > 0) result.push({ key: 'medals', label: '奖牌榜 Top3' })
  if (latestGroup.value !== null) result.push({ key: 'results', label: '最新完成项目' })
  // 公告是固定槽位：没有公告时显示占位，避免底栏只剩两屏来回跳。
  result.push({ key: 'announcement', label: '公告' })
  return result
})

const index = ref(0)
const current = computed<TickerItem | null>(() => items.value[index.value] ?? items.value[0] ?? null)
const paused = computed(() => detail.value !== null)
const rotateMs = computed(() => Math.max(2, settings.value?.display?.rotateSeconds ?? 8) * 1000)

let timer = 0

function restart(): void {
  window.clearInterval(timer)
  timer = 0
  if (paused.value) return
  timer = window.setInterval(() => {
    index.value = (index.value + 1) % Math.max(1, items.value.length)
  }, rotateMs.value)
}

watch([rotateMs, paused], restart, { immediate: true })
watch(
  () => items.value.length,
  (total) => {
    if (index.value >= total) index.value = 0
  },
)
onUnmounted(() => window.clearInterval(timer))
</script>

<template>
  <footer class="ticker">
    <div v-if="current" class="label">{{ current.label }}</div>
    <div class="viewport">
      <div v-if="current" :key="current.key" class="item">
        <template v-if="current.key === 'medals'">
          <div v-for="row in topMedals" :key="row.teamId" class="chip">
            <span class="chip-rank">{{ row.rank }}</span>
            <span class="chip-name">{{ row.shortName ?? row.teamName }}</span>
            <span class="chip-stat gold">金 {{ row.gold }}</span>
            <span class="chip-stat silver">银 {{ row.silver }}</span>
            <span class="chip-stat bronze">铜 {{ row.bronze }}</span>
          </div>
        </template>

        <template v-else-if="current.key === 'results' && latestGroup">
          <div class="event-name">
            {{ latestGroup.eventName }}
            <span class="event-cat">{{ latestGroup.categoryName }}</span>
          </div>
          <div v-for="row in latestGroup.rows.slice(0, 3)" :key="row.entryId" class="chip">
            <span class="chip-rank">{{ row.rank ?? '—' }}</span>
            <span class="chip-name">{{ row.athleteName ?? row.teamName }}</span>
            <span class="chip-stat">{{ row.resultText }}</span>
          </div>
        </template>

        <template v-else>
          <div class="announce">{{ announcement?.text ?? '暂无公告' }}</div>
        </template>
      </div>
    </div>
  </footer>
</template>

<style scoped>
.ticker {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 112px;
  flex: none;
  padding: 0 28px;
  border-radius: 18px;
  background: var(--panel);
  border: 2px solid var(--panel-border);
}
.label {
  flex: none;
  padding: 10px 20px;
  border-radius: 10px;
  font-size: 22px;
  letter-spacing: 3px;
  color: var(--primary-fg);
  background: var(--primary);
}
.viewport {
  position: relative;
  flex: 1;
  min-width: 0;
  height: 100%;
  overflow: hidden;
}
.item {
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 34px;
  white-space: nowrap;
  /* 只做入场淡入：切换时旧内容立即移除，不会因为离场过渡卡住而出现空档。 */
  animation: ticker-in 0.4s ease-out both;
}
@keyframes ticker-in {
  from {
    opacity: 0;
    transform: translateX(36px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}
.chip {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 26px;
}
.chip-rank {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-dim);
  font-size: 22px;
}
.chip-name {
  color: var(--text);
}
.chip-stat {
  color: var(--text-dim);
  font-variant-numeric: tabular-nums;
}
.gold {
  color: var(--gold);
}
.silver {
  color: #d8e2ee;
}
.bronze {
  color: #e0995e;
}
.event-name {
  font-size: 28px;
  color: var(--primary-light);
  letter-spacing: 2px;
}
.event-cat {
  margin-left: 12px;
  font-size: 22px;
  color: var(--text-dim);
}
.announce {
  font-size: 28px;
  letter-spacing: 3px;
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
}
</style>