feat(email): 初始化自建邮箱 MVP

- 新增 Go + SQLite 后端,支持登录、域名、邮箱、别名、联系人、规则、统计与邮件收发。
- 新增 Webmail 前端,支持多邮箱切换、邮件列表/阅读/写信、附件、搜索、主题切换与个人中心。
- 新增 Docker Compose 部署骨架,补充 Postfix、Dovecot、OpenDKIM、Nginx 配置与部署说明。
This commit is contained in:
LanQin
2026-06-14 01:07:48 +08:00
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import * as React from "react"
import DOMPurify from "dompurify"
import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query"
import { useNavigate, useSearchParams } from "react-router-dom"
import type { ImperativePanelHandle } from "react-resizable-panels"
import { Archive, Check, ChevronsUpDown, Copy, Forward, Inbox, Mail, MailCheck, Moon, PanelLeftClose, PanelLeftOpen, Paperclip, PencilLine, RefreshCcw, Reply, Search, Send, Settings, SlidersHorizontal, Star, Sun, Trash2 } from "lucide-react"
import { api, Mailbox, MailMessage } from "@/lib/api"
import { cn, formatBytes, formatDate } from "@/lib/utils"
import { applyTheme, getInitialTheme } from "@/lib/theme"
import { Button } from "@/components/ui/button"
import { Input } from "@/components/ui/input"
import { Badge } from "@/components/ui/badge"
import { Sheet, SheetContent, SheetFooter, SheetHeader, SheetTitle } from "@/components/ui/sheet"
import { Label } from "@/components/ui/label"
import { Textarea } from "@/components/ui/textarea"
import { DropdownMenu, DropdownMenuContent, DropdownMenuItem, DropdownMenuTrigger } from "@/components/ui/dropdown-menu"
import { ScrollArea } from "@/components/ui/scroll-area"
import { Separator } from "@/components/ui/separator"
import { Skeleton } from "@/components/ui/skeleton"
import { Avatar, AvatarFallback } from "@/components/ui/avatar"
import { ResizableHandle, ResizablePanel, ResizablePanelGroup } from "@/components/ui/resizable"
import {
Sidebar,
SidebarContent,
SidebarGroup,
SidebarGroupContent,
SidebarGroupLabel,
SidebarHeader,
SidebarMenu,
SidebarMenuButton,
SidebarMenuItem,
SidebarProvider,
} from "@/components/ui/sidebar"
import { useMe } from "@/hooks/use-me"
import { useToast } from "@/hooks/use-toast"
const folderIcons: Record<string, React.ReactNode> = { inbox: <Inbox className="h-4 w-4" />, sent: <Send className="h-4 w-4" />, archive: <Archive className="h-4 w-4" />, trash: <Trash2 className="h-4 w-4" /> }
const folderLabels: Record<string, string> = {
Inbox: "收件箱",
Sent: "已发送",
Drafts: "草稿箱",
Archive: "归档",
Spam: "垃圾邮件",
Trash: "回收站",
}
type ComposeDraft = { key: string; to?: string; cc?: string; bcc?: string; subject?: string; text?: string }
type MailFilter = "all" | "unread" | "starred" | "attachments"
const filterLabels: Record<MailFilter, string> = {
all: "全部邮件",
unread: "未读邮件",
starred: "星标邮件",
attachments: "有附件",
}
export function MailPage() {
const qc = useQueryClient()
const { toast } = useToast()
const navigate = useNavigate()
const me = useMe()
const [searchParams, setSearchParams] = useSearchParams()
const [folder, setFolder] = React.useState(() => searchParams.get("folder") || "Inbox")
const [query, setQuery] = React.useState("")
const [selectedId, setSelectedId] = React.useState<string | null>(null)
const [composeOpen, setComposeOpen] = React.useState(false)
const [composeDraft, setComposeDraft] = React.useState<ComposeDraft | undefined>()
const [sidebarCollapsed, setSidebarCollapsed] = React.useState(false)
const [mailFilter, setMailFilter] = React.useState<MailFilter>("all")
const [selectedMailboxId, setSelectedMailboxId] = React.useState(() => localStorage.getItem("lanqin:selected-mailbox") || "")
const [darkMode, setDarkMode] = React.useState(getInitialTheme)
const sidebarPanelRef = React.useRef<ImperativePanelHandle>(null)
const themeMountedRef = React.useRef(false)
const mailboxList = useQuery({ queryKey: ["mailboxes", "mine"], queryFn: api.myMailboxes })
const selectedMailbox = React.useMemo(() => mailboxList.data?.items.find((item) => item.id === selectedMailboxId), [mailboxList.data?.items, selectedMailboxId])
const folders = useQuery({ queryKey: ["folders", selectedMailboxId], queryFn: () => api.folders(selectedMailboxId), enabled: !!selectedMailboxId })
const messages = useQuery({ queryKey: ["messages", selectedMailboxId, folder, query], queryFn: () => api.messages(folder, query, "", selectedMailboxId), enabled: !!selectedMailboxId })
const detail = useQuery({ queryKey: ["message", selectedId], queryFn: () => api.message(selectedId!), enabled: !!selectedId })
const star = useMutation({ mutationFn: ({ id, starred }: { id: string; starred: boolean }) => api.star(id, starred), onSuccess: () => qc.invalidateQueries({ queryKey: ["messages"] }) })
const del = useMutation({ mutationFn: (id: string) => api.delete(id), onSuccess: async () => { setSelectedId(null); await qc.invalidateQueries({ queryKey: ["messages"] }); await qc.invalidateQueries({ queryKey: ["folders"] }); toast({ title: "已删除" }) } })
const move = useMutation({ mutationFn: ({ id, folder }: { id: string; folder: string }) => api.move(id, folder), onSuccess: async () => { setSelectedId(null); await qc.invalidateQueries({ queryKey: ["messages"] }); await qc.invalidateQueries({ queryKey: ["folders"] }); toast({ title: "已移动" }) } })
const markAllRead = useMutation({
mutationFn: async (items: MailMessage[]) => {
const unread = items.filter((message) => !message.isRead)
await Promise.all(unread.map((message) => api.markRead(message.id, true)))
return unread.length
},
onSuccess: async (count) => {
await qc.invalidateQueries({ queryKey: ["messages"] })
await qc.invalidateQueries({ queryKey: ["folders"] })
toast({ title: count > 0 ? `已标记 ${count} 封邮件为已读` : "当前没有未读邮件" })
},
onError: (error) => toast({ title: "操作失败", description: error.message }),
})
React.useEffect(() => {
const items = mailboxList.data?.items || []
if (items.length === 0) return
if (!selectedMailboxId || !items.some((item) => item.id === selectedMailboxId)) {
setSelectedMailboxId(items[0].id)
}
}, [mailboxList.data?.items, selectedMailboxId])
React.useEffect(() => {
if (selectedMailboxId) localStorage.setItem("lanqin:selected-mailbox", selectedMailboxId)
}, [selectedMailboxId])
React.useEffect(() => {
const nextFolder = searchParams.get("folder") || "Inbox"
if (nextFolder !== folder) {
setFolder(nextFolder)
setSelectedId(null)
}
}, [folder, searchParams])
React.useEffect(() => {
applyTheme(darkMode, themeMountedRef.current)
themeMountedRef.current = true
}, [darkMode])
React.useEffect(() => {
const events = new EventSource("/api/events", { withCredentials: true })
events.addEventListener("sync", () => qc.invalidateQueries({ queryKey: ["folders"] }))
return () => events.close()
}, [qc])
const selected = detail.data
const allMessages = messages.data?.items || []
const visibleMessages = allMessages.filter((message) => {
if (mailFilter === "unread") return !message.isRead
if (mailFilter === "starred") return message.isStarred
if (mailFilter === "attachments") return message.hasAttachments
return true
})
const unreadCount = allMessages.filter((message) => !message.isRead).length
function openCompose(draft?: ComposeDraft) { setComposeDraft(draft || { key: `new-${Date.now()}` }); setComposeOpen(true) }
function openReply(message: MailMessage) { openCompose({ key: `reply-${message.id}-${Date.now()}`, to: message.from, subject: withPrefix(message.subject, "Re:"), text: quoteMessage(message) }) }
function openForward(message: MailMessage) { openCompose({ key: `forward-${message.id}-${Date.now()}`, subject: withPrefix(message.subject, "Fwd:"), text: quoteMessage(message) }) }
function switchMailbox(mailboxId: string) {
setSelectedMailboxId(mailboxId)
setFolder("Inbox")
setSearchParams({})
setSelectedId(null)
setMailFilter("all")
}
async function copyCurrentMailbox() {
if (!selectedMailbox?.address) return
await navigator.clipboard.writeText(selectedMailbox.address)
toast({ title: "邮箱地址已复制" })
}
function openSettings() {
navigate("/profile")
}
function toggleSidebar() {
if (sidebarCollapsed) {
sidebarPanelRef.current?.expand(14)
setSidebarCollapsed(false)
} else {
sidebarPanelRef.current?.collapse()
setSidebarCollapsed(true)
}
}
return (
<div className="h-svh bg-background">
<SidebarProvider className="h-full min-h-0 w-full">
<ResizablePanelGroup direction="horizontal" className="h-full min-h-0 w-full">
<ResizablePanel ref={sidebarPanelRef} collapsible collapsedSize={4} defaultSize={15} minSize={11} maxSize={24} onCollapse={() => setSidebarCollapsed(true)} onExpand={() => setSidebarCollapsed(false)}>
<Sidebar collapsible="none" className="h-full w-full border-r bg-sidebar">
<SidebarHeader className={cn("border-b py-3", sidebarCollapsed ? "px-2" : "px-3")}>
<AccountHeader
collapsed={sidebarCollapsed}
name={me.data?.user.displayName || selectedMailbox?.address || "LanQin"}
email={me.data?.user.email || selectedMailbox?.address}
darkMode={darkMode}
onToggleTheme={() => setDarkMode((value) => !value)}
onSettings={openSettings}
/>
<div className={cn("mt-2 flex gap-2", sidebarCollapsed && "justify-center")}>
<MailboxSwitcher
collapsed={sidebarCollapsed}
mailboxes={mailboxList.data?.items || []}
selectedMailbox={selectedMailbox}
onSelect={switchMailbox}
/>
{!sidebarCollapsed && (
<Button type="button" variant="outline" size="icon" className="h-9 w-9 shrink-0 rounded-md" onClick={copyCurrentMailbox} disabled={!selectedMailbox}>
<Copy className="h-4 w-4" />
</Button>
)}
</div>
<Button className={cn("mt-2 h-10 w-full rounded-md text-sm", sidebarCollapsed && "px-0")} size={sidebarCollapsed ? "icon" : "default"} onClick={() => openCompose()}>
<PencilLine className="h-4 w-4" />
{!sidebarCollapsed && <span></span>}
</Button>
</SidebarHeader>
<SidebarContent>
<SidebarGroup>
{!sidebarCollapsed && <SidebarGroupLabel></SidebarGroupLabel>}
<SidebarGroupContent>
<SidebarMenu>
{(folders.data?.items || []).map((f) => (
<SidebarMenuItem key={f.id}>
<SidebarMenuButton isActive={folder === f.name} className={cn(sidebarCollapsed && "justify-center px-0")} onClick={() => { setFolder(f.name); setSearchParams(f.name === "Inbox" ? {} : { folder: f.name }); setSelectedId(null) }}>
{folderIcons[f.role] || <Inbox className="h-4 w-4" />}
{!sidebarCollapsed && <span>{folderLabels[f.name] || f.name}</span>}
{!sidebarCollapsed && f.unreadCount > 0 && <Badge variant="secondary" className="ml-auto">{f.unreadCount}</Badge>}
</SidebarMenuButton>
</SidebarMenuItem>
))}
</SidebarMenu>
{folders.isLoading && <FolderSkeleton />}
</SidebarGroupContent>
</SidebarGroup>
</SidebarContent>
<div className={cn("mt-auto border-t p-2", sidebarCollapsed ? "flex justify-center" : "")}>
<Button type="button" variant="ghost" size={sidebarCollapsed ? "icon" : "sm"} className={cn(!sidebarCollapsed && "w-full justify-start")} onClick={toggleSidebar}>
{sidebarCollapsed ? <PanelLeftOpen className="h-4 w-4" /> : <PanelLeftClose className="h-4 w-4" />}
{!sidebarCollapsed && <span></span>}
</Button>
</div>
</Sidebar>
</ResizablePanel>
<ResizableHandle withHandle />
<ResizablePanel defaultSize={85} minSize={60}>
<section className="flex h-full min-h-0 flex-col">
<header className="flex h-16 shrink-0 items-center justify-between gap-3 border-b px-5">
<div className="flex items-center gap-2">
<Button size="icon" variant="ghost" onClick={() => { qc.invalidateQueries({ queryKey: ["messages"] }); qc.invalidateQueries({ queryKey: ["folders"] }) }}><RefreshCcw className="h-4 w-4" /></Button>
<Button variant="outline" size="sm" disabled={markAllRead.isPending || unreadCount === 0} onClick={() => markAllRead.mutate(allMessages)}><MailCheck className="h-4 w-4" /></Button>
<DropdownMenu>
<DropdownMenuTrigger asChild>
<Button variant="outline" size="sm"><SlidersHorizontal className="h-4 w-4" />{filterLabels[mailFilter]}</Button>
</DropdownMenuTrigger>
<DropdownMenuContent align="start">
{(Object.keys(filterLabels) as MailFilter[]).map((value) => (
<DropdownMenuItem key={value} onSelect={() => setMailFilter(value)}>
{filterLabels[value]}
</DropdownMenuItem>
))}
</DropdownMenuContent>
</DropdownMenu>
</div>
<div className="relative w-full max-w-md">
<Search className="absolute left-3 top-2.5 h-4 w-4 text-muted-foreground" />
<Input value={query} onChange={(e) => setQuery(e.target.value)} placeholder="搜索邮件" className="pl-9" />
</div>
</header>
<ResizablePanelGroup direction="horizontal" className="min-h-0 flex-1">
<ResizablePanel defaultSize={32} minSize={24} maxSize={44}>
<div className="flex h-full min-h-0 flex-col">
<div className="flex h-14 shrink-0 items-center justify-between border-b px-5">
<div>
<div className="text-sm font-semibold">{folderLabels[folder] || folder}</div>
<div className="text-xs text-muted-foreground">{visibleMessages.length} / {allMessages.length} </div>
</div>
</div>
<ScrollArea className="min-h-0 flex-1">
{messages.isLoading && <MessageSkeleton />}
{visibleMessages.map((m) => <MessageRow key={m.id} message={m} active={selectedId === m.id} onClick={() => setSelectedId(m.id)} onStar={() => star.mutate({ id: m.id, starred: !m.isStarred })} />)}
{!messages.isLoading && visibleMessages.length === 0 && <div className="p-8 text-center text-sm text-muted-foreground">{allMessages.length === 0 ? "当前文件夹没有邮件" : "当前筛选条件下没有邮件"}</div>}
</ScrollArea>
</div>
</ResizablePanel>
<ResizableHandle withHandle />
<ResizablePanel defaultSize={68} minSize={44}>
<section className="h-full min-h-0">
{!selectedId && <div className="grid h-full place-items-center text-muted-foreground"></div>}
{detail.isLoading && <div className="space-y-4 p-6"><Skeleton className="h-8 w-2/3" /><Skeleton className="h-4 w-1/3" /><Separator /><Skeleton className="h-40 w-full" /></div>}
{selected && <div className="flex h-full min-h-0 flex-col">
<div className="border-b p-5">
<div className="mb-4 flex items-center justify-between gap-3">
<h2 className="text-xl font-semibold">{selected.subject}</h2>
<div className="flex flex-wrap justify-end gap-2">
<Button variant="outline" size="sm" onClick={() => openReply(selected)}><Reply className="h-4 w-4" /></Button>
<Button variant="outline" size="sm" onClick={() => openForward(selected)}><Forward className="h-4 w-4" /></Button>
{selected.folder === "Archive" ? (
<Button variant="outline" size="sm" onClick={() => move.mutate({ id: selected.id, folder: "Inbox" })}></Button>
) : (
<Button variant="outline" size="sm" onClick={() => move.mutate({ id: selected.id, folder: "Archive" })}></Button>
)}
<Button variant="destructive" size="sm" onClick={() => del.mutate(selected.id)}></Button>
</div>
</div>
<div className="text-sm text-muted-foreground"><span className="font-medium text-foreground">{selected.from}</span> {selected.to.join(", ")} · {formatDate(selected.receivedAt)}</div>
</div>
<ScrollArea className="min-h-0 flex-1">
<div className="p-6">
<div className="mail-html prose max-w-none text-sm leading-7" dangerouslySetInnerHTML={{ __html: DOMPurify.sanitize(selected.bodyHtml || `<pre>${selected.bodyText || ""}</pre>`) }} />
{selected.attachments && selected.attachments.length > 0 && <div className="mt-8 rounded-lg border p-4"><div className="mb-3 font-medium"></div><div className="space-y-2">{selected.attachments.map((a) => <a className="flex items-center justify-between rounded-md border p-3 text-sm hover:bg-accent" href={`/api/mail/attachments/${a.id}`} key={a.id}><span className="flex items-center gap-2"><Paperclip className="h-4 w-4" />{a.filename}</span><span className="text-muted-foreground">{formatBytes(a.sizeBytes)}</span></a>)}</div></div>}
</div>
</ScrollArea>
</div>}
</section>
</ResizablePanel>
</ResizablePanelGroup>
</section>
</ResizablePanel>
</ResizablePanelGroup>
</SidebarProvider>
<ComposeSheet mailbox={selectedMailbox} open={composeOpen} draft={composeDraft} onOpenChange={(open) => { setComposeOpen(open); if (!open) setComposeDraft(undefined) }} onSent={() => { setComposeOpen(false); setComposeDraft(undefined); qc.invalidateQueries({ queryKey: ["messages"] }); qc.invalidateQueries({ queryKey: ["folders"] }) }} />
</div>
)
}
function FolderSkeleton() { return <div className="space-y-2 p-2"><Skeleton className="h-8 w-full" /><Skeleton className="h-8 w-4/5" /><Skeleton className="h-8 w-3/4" /></div> }
function MessageSkeleton() { return <div className="space-y-0">{Array.from({ length: 6 }).map((_, i) => <div className="space-y-2 border-b p-4" key={i}><Skeleton className="h-4 w-1/2" /><Skeleton className="h-4 w-4/5" /><Skeleton className="h-3 w-full" /></div>)}</div> }
function AccountHeader({ collapsed, name, email, darkMode, onToggleTheme, onSettings }: { collapsed: boolean; name: string; email?: string; darkMode: boolean; onToggleTheme: () => void; onSettings: () => void }) {
const displayName = cleanAccountName(name, email)
if (collapsed) {
return (
<div className="flex justify-center">
<Avatar className="size-8 rounded-full">
<AvatarFallback className="bg-primary text-xs font-semibold text-primary-foreground">{accountInitial(displayName, email)}</AvatarFallback>
</Avatar>
</div>
)
}
return (
<div className="flex items-center justify-between gap-2">
<div className="flex min-w-0 items-center gap-2">
<Avatar className="size-8 rounded-full">
<AvatarFallback className="bg-primary text-xs font-semibold text-primary-foreground">{accountInitial(displayName, email)}</AvatarFallback>
</Avatar>
<div className="min-w-0 text-sm">
<div className="truncate text-sm font-semibold leading-5">{displayName}</div>
</div>
</div>
<div className="flex shrink-0 items-center gap-1">
<Button type="button" variant="ghost" size="icon" className="size-8 rounded-md text-muted-foreground" onClick={onToggleTheme}>
{darkMode ? <Sun className="h-4 w-4" /> : <Moon className="h-4 w-4" />}
</Button>
<Button type="button" variant="ghost" size="icon" className="size-8 rounded-md text-muted-foreground" onClick={onSettings}>
<Settings className="h-4 w-4" />
</Button>
</div>
</div>
)
}
function MailboxSwitcher({ collapsed, mailboxes, selectedMailbox, onSelect }: { collapsed: boolean; mailboxes: Mailbox[]; selectedMailbox?: Mailbox; onSelect: (mailboxId: string) => void }) {
return (
<DropdownMenu>
<DropdownMenuTrigger asChild>
<Button variant="outline" className={cn("h-9 min-w-0 flex-1 justify-start gap-2 rounded-md bg-background px-2 text-left font-normal", collapsed && "w-8 flex-none justify-center px-0")}>
<Mail className="h-4 w-4 shrink-0 text-muted-foreground" />
{!collapsed && (
<>
<span className="min-w-0 flex-1 truncate text-sm font-medium">{selectedMailbox?.address || "选择邮箱"}</span>
<ChevronsUpDown className="h-4 w-4 shrink-0 text-muted-foreground" />
</>
)}
</Button>
</DropdownMenuTrigger>
<DropdownMenuContent align="start" className="w-72">
{mailboxes.length === 0 && <DropdownMenuItem disabled></DropdownMenuItem>}
{mailboxes.map((mailbox) => (
<DropdownMenuItem key={mailbox.id} onSelect={() => onSelect(mailbox.id)} className="gap-2">
<Check className={cn("h-4 w-4", selectedMailbox?.id === mailbox.id ? "opacity-100" : "opacity-0")} />
<span className="min-w-0 flex-1 truncate font-medium">{mailbox.address}</span>
</DropdownMenuItem>
))}
</DropdownMenuContent>
</DropdownMenu>
)
}
function cleanAccountName(name: string, email?: string) {
const value = name.trim()
if (!value || (email && value.toLowerCase() === email.toLowerCase())) return email?.split("@")[0] || "用户"
return value
}
function accountInitial(name: string, email?: string) {
const source = cleanAccountName(name, email)
const first = Array.from(source.trim())[0]
return (first || "蓝").toUpperCase()
}
function MessageRow({ message, active, onClick, onStar }: { message: MailMessage; active: boolean; onClick: () => void; onStar: () => void }) {
return <div onClick={onClick} className={cn("cursor-pointer border-b p-4 transition-colors hover:bg-accent/50", active && "bg-accent", !message.isRead && "font-semibold")}>
<div className="mb-1 flex items-center justify-between gap-2"><div className="truncate text-sm">{message.from}</div><div className="shrink-0 text-xs text-muted-foreground">{formatDate(message.receivedAt)}</div></div>
<div className="mb-1 flex items-center gap-2"><Button type="button" variant="ghost" size="icon" className="h-6 w-6 text-muted-foreground hover:text-yellow-500" onClick={(e) => { e.stopPropagation(); onStar() }}><Star className={cn("h-4 w-4", message.isStarred && "fill-yellow-400 text-yellow-500")} /></Button><span className="truncate text-sm">{message.subject}</span>{message.hasAttachments && <Paperclip className="h-3 w-3 text-muted-foreground" />}</div>
<div className="line-clamp-2 text-xs text-muted-foreground">{message.snippet}</div>
</div>
}
function ComposeSheet({ mailbox, open, draft, onOpenChange, onSent }: { mailbox?: Mailbox; open: boolean; draft?: ComposeDraft; onOpenChange: (v: boolean) => void; onSent: () => void }) {
const { toast } = useToast()
const [files, setFiles] = React.useState<File[]>([])
const send = useMutation({ mutationFn: api.send, onSuccess: () => { toast({ title: "发送成功" }); setFiles([]); onSent() }, onError: (e) => toast({ title: "发送失败", description: e.message }) })
async function submit(e: React.FormEvent<HTMLFormElement>) {
e.preventDefault()
if (!mailbox) {
toast({ title: "请选择发件邮箱" })
return
}
const form = new FormData(e.currentTarget)
const attachments = await Promise.all(files.map(fileToAttachment))
const text = String(form.get("text") || "")
send.mutate({ mailboxId: mailbox.id, to: splitEmails(String(form.get("to") || "")), cc: splitEmails(String(form.get("cc") || "")), bcc: splitEmails(String(form.get("bcc") || "")), subject: String(form.get("subject") || ""), text, html: text.replace(/\n/g, "<br>"), attachments })
}
return <Sheet open={open} onOpenChange={onOpenChange}><SheetContent className="overflow-y-auto sm:max-w-2xl"><SheetHeader><SheetTitle></SheetTitle></SheetHeader><form key={draft?.key || "new"} className="mt-5 space-y-4" onSubmit={submit}>
<div className="space-y-2"><Label></Label><Input value={mailbox?.address || "未选择"} readOnly /></div>
<div className="space-y-2"><Label></Label><Input name="to" placeholder="user@example.com, other@example.com" defaultValue={draft?.to || ""} required /></div>
<div className="grid grid-cols-2 gap-3"><div className="space-y-2"><Label></Label><Input name="cc" defaultValue={draft?.cc || ""} /></div><div className="space-y-2"><Label></Label><Input name="bcc" defaultValue={draft?.bcc || ""} /></div></div>
<div className="space-y-2"><Label></Label><Input name="subject" defaultValue={draft?.subject || ""} /></div>
<div className="space-y-2"><Label></Label><Textarea name="text" className="min-h-[220px]" defaultValue={draft?.text || ""} /></div>
<div className="space-y-2"><Label></Label><Input type="file" multiple onChange={(e) => setFiles(Array.from(e.currentTarget.files || []))} />{files.length > 0 && <div className="text-xs text-muted-foreground">{files.map((f) => `${f.name} (${formatBytes(f.size)})`).join("")}</div>}</div>
<SheetFooter><Button type="button" variant="outline" onClick={() => onOpenChange(false)}></Button><Button disabled={send.isPending || !mailbox}>{send.isPending ? "发送中..." : "发送"}</Button></SheetFooter>
</form></SheetContent></Sheet>
}
function splitEmails(s: string) { return s.split(/[;,\s]+/).map((v) => v.trim()).filter(Boolean) }
function withPrefix(subject: string, prefix: string) { return subject.toLowerCase().startsWith(prefix.toLowerCase()) ? subject : `${prefix} ${subject}` }
function quoteMessage(message: MailMessage) {
const body = message.bodyText || stripHtml(message.bodyHtml || message.snippet || "")
const quote = body.split("\n").map((line) => `> ${line}`).join("\n")
return `\n\n----- 原始邮件 -----\nFrom: ${message.from}\nTo: ${message.to.join(", ")}\nDate: ${formatDate(message.receivedAt)}\nSubject: ${message.subject}\n\n${quote}`
}
function stripHtml(html: string) { const div = document.createElement("div"); div.innerHTML = DOMPurify.sanitize(html); return div.textContent || div.innerText || "" }
async function fileToAttachment(file: File) {
const buffer = await file.arrayBuffer()
let binary = ""
const bytes = new Uint8Array(buffer)
for (let i = 0; i < bytes.length; i++) binary += String.fromCharCode(bytes[i])
return { filename: file.name, contentType: file.type || "application/octet-stream", contentBase64: btoa(binary) }
}