双人年度报告后端实现

src/pages/DualReportPage.tsx

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+import { useEffect, useMemo, useState } from 'react'
+import { useNavigate } from 'react-router-dom'
+import { Loader2, Search, Users } from 'lucide-react'
+import './DualReportPage.scss'
+
+interface ContactRanking {
+  username: string
+  displayName: string
+  avatarUrl?: string
+  messageCount: number
+  sentCount: number
+  receivedCount: number
+  lastMessageTime?: number | null
+}
+
+function DualReportPage() {
+  const navigate = useNavigate()
+  const [year, setYear] = useState<number>(0)
+  const [rankings, setRankings] = useState<ContactRanking[]>([])
+  const [isLoading, setIsLoading] = useState(true)
+  const [loadError, setLoadError] = useState<string | null>(null)
+  const [keyword, setKeyword] = useState('')
+
+  useEffect(() => {
+    const params = new URLSearchParams(window.location.hash.split('?')[1] || '')
+    const yearParam = params.get('year')
+    const parsedYear = yearParam ? parseInt(yearParam, 10) : 0
+    setYear(Number.isNaN(parsedYear) ? 0 : parsedYear)
+  }, [])
+
+  useEffect(() => {
+    loadRankings()
+  }, [])
+
+  const loadRankings = async () => {
+    setIsLoading(true)
+    setLoadError(null)
+    try {
+      const result = await window.electronAPI.analytics.getContactRankings(200)
+      if (result.success && result.data) {
+        setRankings(result.data)
+      } else {
+        setLoadError(result.error || '加载好友列表失败')
+      }
+    } catch (e) {
+      setLoadError(String(e))
+    } finally {
+      setIsLoading(false)
+    }
+  }
+
+  const yearLabel = year === 0 ? '全部时间' : `${year}年`
+
+  const filteredRankings = useMemo(() => {
+    if (!keyword.trim()) return rankings
+    const q = keyword.trim().toLowerCase()
+    return rankings.filter((item) => {
+      return item.displayName.toLowerCase().includes(q) || item.username.toLowerCase().includes(q)
+    })
+  }, [rankings, keyword])
+
+  const handleSelect = (username: string) => {
+    const yearParam = year === 0 ? 0 : year
+    navigate(`/dual-report/view?username=${encodeURIComponent(username)}&year=${yearParam}`)
+  }
+
+  if (isLoading) {
+    return (
+      <div className="dual-report-page loading">
+        <Loader2 size={32} className="spin" />
+        <p>正在加载聊天排行...</p>
+      </div>
+    )
+  }
+
+  if (loadError) {
+    return (
+      <div className="dual-report-page loading">
+        <p>加载失败：{loadError}</p>
+      </div>
+    )
+  }
+
+  return (
+    <div className="dual-report-page">
+      <div className="page-header">
+        <div>
+          <h1>双人年度报告</h1>
+          <p>选择一位好友，生成你们的专属聊天报告</p>
+        </div>
+        <div className="year-badge">
+          <Users size={14} />
+          <span>{yearLabel}</span>
+        </div>
+      </div>
+
+      <div className="search-bar">
+        <Search size={16} />
+        <input
+          value={keyword}
+          onChange={(e) => setKeyword(e.target.value)}
+          placeholder="搜索好友（昵称/备注/wxid）"
+        />
+      </div>
+
+      <div className="ranking-list">
+        {filteredRankings.map((item, index) => (
+          <button
+            key={item.username}
+            className="ranking-item"
+            onClick={() => handleSelect(item.username)}
+          >
+            <span className={`rank-badge ${index < 3 ? 'top' : ''}`}>{index + 1}</span>
+            <div className="avatar">
+              {item.avatarUrl
+                ? <img src={item.avatarUrl} alt={item.displayName} />
+                : <span>{item.displayName.slice(0, 1) || '?'}</span>
+              }
+            </div>
+            <div className="info">
+              <div className="name">{item.displayName}</div>
+              <div className="sub">{item.username}</div>
+            </div>
+            <div className="meta">
+              <div className="count">{item.messageCount.toLocaleString()} 条</div>
+              <div className="hint">总消息</div>
+            </div>
+          </button>
+        ))}
+        {filteredRankings.length === 0 ? (
+          <div className="empty">没有匹配的好友</div>
+        ) : null}
+      </div>
+    </div>
+  )
+}
+
+export default DualReportPage