"use client"

import { useEffect, useState } from "react"
import { useParams, useRouter } from "next/navigation"
import Link from "next/link"
import { useFamily } from "@/context/family-context"
import { SiteHeader } from "@/components/site-header"
import { MemberForm } from "@/components/members/member-form"
import { Button } from "@/components/ui/button"
import { ArrowLeft, Edit, Trash, Share2, Printer, CircleUser, CircleUserRound, Images, BookOpen, UserPlus, Camera } from "lucide-react"
import type { FamilyMember } from "@/types/family"
import { db } from "@/lib/db"
import { PhotoGallery } from "@/components/members/photo-gallery"
import { StoryManager } from "@/components/members/story-manager"
import { useDialog } from "@/components/ui/alert-dialog-custom"
import { permissions } from "@/lib/permissions"
import { MemberNameWithStatus } from "@/components/member-name-with-status"
import { MemberVersionHistory } from "@/components/members/member-version-history"

export default function MemberProfilePage() {
  const { id } = useParams()
  const { treeData, currentTree, getMember, updateMember, deleteMember, isLoading } = useFamily()
  const role = currentTree?.currentUserRole
  const { showConfirm } = useDialog()
  const router = useRouter()
  const [isEditing, setIsEditing] = useState(false)
  const [avatarBlobUrl, setAvatarBlobUrl] = useState<string | undefined>(undefined)
  const [isUploadingAvatar, setIsUploadingAvatar] = useState(false)

  const member = getMember(id as string)
  const allMembers = Object.values(treeData.members)
  
  // 始祖专用边框样式
  const founderBorderClass = member?.isFounder ? "border-2 border-amber-400 shadow-md" : "border border-border"
  
  // 计算年龄或享年
  const calculateAge = () => {
    if (!member?.birthDate) return null
    
    const birthYear = new Date(member.birthDate).getFullYear()
    
    if (member.deathDate) {
      // 已故，计算享年
      const deathYear = new Date(member.deathDate).getFullYear()
      return { age: deathYear - birthYear, type: 'deceased' }
    } else {
      // 在世，计算年龄
      const currentYear = new Date().getFullYear()
      return { age: currentYear - birthYear, type: 'living' }
    }
  }
  
  const ageInfo = calculateAge()

  // Load avatar
  useEffect(() => {
    // 优先使用 avatarUrl（服务器存储）
    if (member?.avatarUrl) {
      setAvatarBlobUrl(member.avatarUrl)
    } 
    // 兼容旧的 IndexedDB 存储
    else if (member?.avatarImageId) {
      db.images.get(member.avatarImageId).then((image) => {
        if (image) {
          const url = URL.createObjectURL(image.blob)
          setAvatarBlobUrl(url)
          return () => URL.revokeObjectURL(url)
        }
      })
    } else {
      setAvatarBlobUrl(undefined)
    }
  }, [member?.avatarUrl, member?.avatarImageId])

  // 显示加载状态
  if (isLoading) {
    return (
      <div className="min-h-screen flex flex-col bg-background">
        <SiteHeader />
        <div className="flex-1 flex flex-col items-center justify-center gap-4">
          <p className="text-muted-foreground">加载中...</p>
        </div>
      </div>
    )
  }

  // 成员未找到
  if (!member) {
    return (
      <div className="min-h-screen flex flex-col bg-background">
        <SiteHeader />
        <div className="flex-1 flex flex-col items-center justify-center gap-4">
          <p className="text-muted-foreground">未找到该成员</p>
          <Button onClick={() => router.push(`/members${typeof window !== 'undefined' ? window.location.search : ''}`)}>返回列表</Button>
        </div>
      </div>
    )
  }

  const handleSave = (updatedMember: FamilyMember) => {
    updateMember(updatedMember.id, updatedMember)
    setIsEditing(false)
  }

  const handleDelete = async () => {
    const confirmed = await showConfirm("确定要删除这位成员吗？这将同时删除其关联关系。", "删除成员", "destructive")
    if (confirmed) {
      deleteMember(member.id)
      const params = new URLSearchParams(window.location.search)
      router.push(`/members?${params.toString()}`)
    }
  }

  const handleQuickAddChild = () => {
    // 跳转到新增成员页面，并预填父母信息
    const params = new URLSearchParams(window.location.search)
    if (member.gender === 'MALE') {
      params.set('fatherId', member.id)
    } else {
      params.set('motherId', member.id)
    }
    params.set('generation', (member.generation + 1).toString())
    router.push(`/members/new?${params.toString()}`)
  }

  const handleQuickAddSpouse = () => {
    // 跳转到新增成员页面，并预填配偶信息
    const params = new URLSearchParams(window.location.search)
    params.set('spouseId', member.id)
    params.set('generation', member.generation.toString())
    // 配偶性别与当前成员相反
    params.set('gender', member.gender === 'MALE' ? 'FEMALE' : 'MALE')
    router.push(`/members/new?${params.toString()}`)
  }

  const handleQuickAddFather = () => {
    // 跳转到新增成员页面，并预填父亲信息
    const params = new URLSearchParams(window.location.search)
    params.set('childId', member.id)
    params.set('generation', (member.generation - 1).toString())
    params.set('gender', 'MALE')
    // 如果已有母亲，将母亲设置为配偶
    if (member.motherId) {
      params.set('spouseId', member.motherId)
    }
    router.push(`/members/new?${params.toString()}`)
  }

  const handleAvatarUpload = async (event: React.ChangeEvent<HTMLInputElement>) => {
    const file = event.target.files?.[0]
    if (!file) return

    try {
      setIsUploadingAvatar(true)
      
      // 上传到服务器
      const formData = new FormData()
      formData.append('file', file)
      
      const response = await fetch('/api/upload', {
        method: 'POST',
        body: formData,
      })

      if (!response.ok) {
        const error = await response.json()
        throw new Error(error.error || '上传失败')
      }

      const { url } = await response.json()
      
      // 更新成员头像 URL
      await updateMember(member.id, {
        avatarUrl: url,
      })

      // 显示新头像
      setAvatarBlobUrl(url)
    } catch (error) {
      console.error('上传头像失败:', error)
      alert('上传头像失败: ' + (error instanceof Error ? error.message : '未知错误'))
    } finally {
      setIsUploadingAvatar(false)
    }
  }

  const handleQuickAddMother = () => {
    // 跳转到新增成员页面，并预填母亲信息
    const params = new URLSearchParams(window.location.search)
    params.set('childId', member.id)
    params.set('generation', (member.generation - 1).toString())
    params.set('gender', 'FEMALE')
    // 如果已有父亲，将父亲设置为配偶
    if (member.fatherId) {
      params.set('spouseId', member.fatherId)
    }
    router.push(`/members/new?${params.toString()}`)
  }

  if (isEditing) {
    return (
      <div className="min-h-screen flex flex-col bg-background">
        <SiteHeader />
        <div className="container mx-auto py-8">
          <div className="mb-6">
            <Button variant="ghost" onClick={() => setIsEditing(false)} className="mb-4">
              <ArrowLeft className="mr-2 h-4 w-4" /> 返回
            </Button>
            
            {member.isFounder && (
              <div className="mb-6 p-6 bg-gradient-to-br from-amber-50 via-orange-50 to-amber-50 border-2 border-amber-400 rounded-xl shadow-md">
                <div className="flex items-start gap-4">
                  <div className="flex-shrink-0 w-14 h-14 bg-gradient-to-br from-amber-200 to-orange-200 rounded-full flex items-center justify-center shadow-sm">
                    <span className="text-3xl">👑</span>
                  </div>
                  <div className="flex-1">
                    <h2 className="text-2xl font-serif font-bold text-amber-900 mb-3">
                      编辑家族始祖
                    </h2>
                    <p className="text-base text-amber-800 leading-relaxed font-serif">
                      此为家族树之<span className="font-bold text-amber-900">始祖</span>，
                      <span className="font-bold text-amber-900">第一世</span>传人。
                      <br />
                      请谨慎修改始祖信息，这将影响整个家族树的根基。
                    </p>
                  </div>
                </div>
              </div>
            )}
            
            <h1 className="text-3xl font-serif font-bold mb-2">
              {member.isFounder ? '编辑家族始祖' : `编辑成员: ${member.fullName}`}
            </h1>
            <p className="text-muted-foreground">
              {member.isFounder 
                ? '修改始祖信息将影响整个家族树' 
                : '更新成员信息'}
            </p>
          </div>
          <MemberForm 
            initialData={member} 
            existingMembers={allMembers}
            onSubmit={handleSave} 
            onCancel={() => setIsEditing(false)}
            isFounder={member.isFounder}
          />
        </div>
      </div>
    )
  }

  return (
    <div className="min-h-screen flex flex-col bg-background">
      <SiteHeader />
      <main className="container mx-auto py-8 px-4 md:px-6">
        {/* 始祖特殊提示框 */}
        {member.isFounder && (
          <div className="mb-6 p-6 bg-gradient-to-br from-amber-50 via-orange-50 to-amber-50 border-2 border-amber-400 rounded-xl shadow-md">
            <div className="flex items-start gap-4">
              <div className="flex-shrink-0 w-14 h-14 bg-gradient-to-br from-amber-200 to-orange-200 rounded-full flex items-center justify-center shadow-sm">
                <span className="text-3xl">👑</span>
              </div>
              <div className="flex-1">
                <h2 className="text-2xl font-serif font-bold text-amber-900 mb-3">
                  家族始祖
                </h2>
                <p className="text-base text-amber-800 leading-relaxed font-serif">
                  此为家族树之<span className="font-bold text-amber-900">始祖</span>，
                  <span className="font-bold text-amber-900">第一世</span>传人。
                  <br />
                  血脉由此而始，世系因此而传。
                </p>
              </div>
            </div>
          </div>
        )}
        
        {/* Header Section */}
        <div className="flex flex-col md:flex-row justify-between items-start gap-6 mb-8 border-b border-border pb-8">
          <div className="flex items-start gap-6">
            <div className="relative group">
              <div className="h-32 w-32 rounded-lg bg-muted flex items-center justify-center border-2 border-primary/20 overflow-hidden">
                {avatarBlobUrl ? (
                  <img
                    src={avatarBlobUrl}
                    alt={member.fullName}
                    className="h-full w-full object-cover"
                  />
                ) : (
                  member.gender === 'FEMALE' ? (
                    <CircleUserRound className="h-20 w-20 text-pink-400" />
                  ) : (
                    <CircleUser className="h-20 w-20 text-blue-400" />
                  )
                )}
              </div>
              {permissions.canUpdate(role) && (
                <label className="absolute inset-0 flex items-center justify-center bg-black/50 opacity-0 group-hover:opacity-100 transition-opacity cursor-pointer rounded-lg">
                  <Camera className="h-8 w-8 text-white" />
                  <input
                    type="file"
                    accept="image/*"
                    className="hidden"
                    onChange={handleAvatarUpload}
                    disabled={isUploadingAvatar}
                  />
                </label>
              )}
              {isUploadingAvatar && (
                <div className="absolute inset-0 flex items-center justify-center bg-black/50 rounded-lg">
                  <div className="text-white text-xs">上传中...</div>
                </div>
              )}
            </div>
            <div>
              <div className="flex items-center gap-3 mb-2">
                <h1 className="text-4xl font-bold font-serif text-foreground flex items-center gap-2">
                  {member.isFounder && <span className="text-amber-600 text-3xl">👑</span>}
                  <MemberNameWithStatus 
                    name={member.fullName}
                    isDead={!!member.deathDate}
                  />
                </h1>
                {member.isFounder ? (
                  <span className="px-3 py-1 bg-gradient-to-r from-amber-100 to-orange-100 text-amber-800 text-sm font-semibold rounded-full border-2 border-amber-300 shadow-sm">
                    始祖 · {member.generation}世
                  </span>
                ) : (
                  <span className="px-2 py-1 bg-primary/10 text-primary text-sm font-medium rounded-full border border-primary/20">
                    {member.generation}世
                  </span>
                )}
              </div>
              <div className="space-y-1 text-muted-foreground">
                {member.isFounder && (
                  <p className="text-amber-700 font-semibold text-sm flex items-center gap-1">
                    <span>家族始祖</span>
                    <span className="text-amber-600">•</span>
                    <span>家族树的根基</span>
                  </p>
                )}
                {member.courtesyName && (
                  <p>
                    字：<span className="text-foreground">{member.courtesyName}</span>
                  </p>
                )}
                {member.artName && (
                  <p>
                    号：<span className="text-foreground">{member.artName}</span>
                  </p>
                )}
                {member.ancestralHome && <p>籍贯：{member.ancestralHome}</p>}
              </div>
              {member.tags && member.tags.length > 0 && (
                <div className="flex flex-wrap gap-2 mt-3">
                  {member.tags.map((tag) => (
                    <span
                      key={tag}
                      className="px-2 py-1 bg-primary/10 text-primary text-xs font-medium rounded-md border border-primary/20"
                    >
                      {tag}
                    </span>
                  ))}
                </div>
              )}
            </div>
          </div>

          <div className="flex gap-2 flex-wrap">
            {permissions.canCreate(role) && (
              <>
                {!member.isFounder && !member.fatherId && (
                  <Button variant="outline" onClick={handleQuickAddFather} className="gap-2">
                    <UserPlus className="h-4 w-4" /> 添加父亲
                  </Button>
                )}
                {!member.isFounder && !member.motherId && (
                  <Button variant="outline" onClick={handleQuickAddMother} className="gap-2">
                    <UserPlus className="h-4 w-4" /> 添加母亲
                  </Button>
                )}
                <Button variant="default" onClick={handleQuickAddChild} className="gap-2">
                  <UserPlus className="h-4 w-4" /> 添加子女
                </Button>
                <Button variant="secondary" onClick={handleQuickAddSpouse} className="gap-2">
                  <UserPlus className="h-4 w-4" /> 添加配偶
                </Button>
              </>
            )}
            <Button variant="outline" size="icon" onClick={() => window.print()} title="打印">
              <Printer className="h-4 w-4" />
            </Button>
            <Button variant="outline" size="icon" title="分享">
              <Share2 className="h-4 w-4" />
            </Button>
            {permissions.canUpdate(role) && (
              <Button variant="outline" onClick={() => setIsEditing(true)} className="gap-2">
                <Edit className="h-4 w-4" /> 编辑
              </Button>
            )}
            {permissions.canDeleteMember(role) && (
              <Button variant="destructive" size="icon" onClick={handleDelete} title="删除">
                <Trash className="h-4 w-4" />
              </Button>
            )}
          </div>
        </div>

        {/* Content Grid */}
        <div className="grid grid-cols-1 lg:grid-cols-3 gap-8">
          {/* Left Column - Details and Biography */}
          <div className="lg:col-span-2 space-y-8">
            {/* 家族关系 */}
            <section>
              <h2 className="text-2xl font-serif font-bold mb-4 flex items-center gap-2">
                <span className="w-1 h-6 bg-secondary rounded-full"></span>
                家族关系
              </h2>
              <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
                <div className={`bg-card p-4 rounded-lg ${founderBorderClass}`}>
                  <h3 className="font-medium text-muted-foreground mb-2 text-sm uppercase tracking-wider">
                    父亲
                  </h3>
                  {member.fatherId ? (
                    <Link
                      href={`/members/${member.fatherId}${typeof window !== 'undefined' ? window.location.search : ''}`}
                      className="text-lg font-serif font-bold hover:underline text-primary"
                    >
                      <MemberNameWithStatus 
                        name={getMember(member.fatherId)?.fullName || member.fatherId}
                        isDead={!!getMember(member.fatherId)?.deathDate}
                      />
                    </Link>
                  ) : member.spouseFatherName ? (
                    <span className="text-lg font-serif font-bold text-foreground">
                      {member.spouseFatherName}
                    </span>
                  ) : (
                    <span className="text-muted-foreground">-</span>
                  )}
                </div>
                <div className={`bg-card p-4 rounded-lg ${founderBorderClass}`}>
                  <h3 className="font-medium text-muted-foreground mb-2 text-sm uppercase tracking-wider">
                    母亲
                  </h3>
                  {member.motherId ? (
                    <Link
                      href={`/members/${member.motherId}${typeof window !== 'undefined' ? window.location.search : ''}`}
                      className="text-lg font-serif font-bold hover:underline text-primary"
                    >
                      <MemberNameWithStatus 
                        name={getMember(member.motherId)?.fullName || member.motherId}
                        isDead={!!getMember(member.motherId)?.deathDate}
                      />
                    </Link>
                  ) : member.spouseMotherName ? (
                    <span className="text-lg font-serif font-bold text-foreground">
                      {member.spouseMotherName}
                    </span>
                  ) : (
                    <span className="text-muted-foreground">-</span>
                  )}
                </div>
                <div className={`bg-card p-4 rounded-lg ${founderBorderClass}`}>
                  <h3 className="font-medium text-muted-foreground mb-2 text-sm uppercase tracking-wider">
                    配偶
                  </h3>
                  <div className="flex flex-wrap gap-2">
                    {member.spouseIds?.length > 0 ? (
                      member.spouseIds.map((spouseId) => (
                        <Link
                          href={`/members/${spouseId}${typeof window !== 'undefined' ? window.location.search : ''}`}
                          key={spouseId}
                          className="px-3 py-1 bg-muted rounded hover:bg-muted/80 text-sm font-medium"
                        >
                          <MemberNameWithStatus 
                            name={getMember(spouseId)?.fullName || spouseId}
                            isDead={!!getMember(spouseId)?.deathDate}
                          />
                        </Link>
                      ))
                    ) : (
                      <span className="text-muted-foreground">无记录</span>
                    )}
                  </div>
                </div>
                <div className={`bg-card p-4 rounded-lg ${founderBorderClass}`}>
                  <h3 className="font-medium text-muted-foreground mb-2 text-sm uppercase tracking-wider">
                    子女
                  </h3>
                  <div className="flex flex-wrap gap-2">
                    {member.childrenIds?.length > 0 ? (
                      member.childrenIds.map((childId) => (
                        <Link
                          href={`/members/${childId}${typeof window !== 'undefined' ? window.location.search : ''}`}
                          key={childId}
                          className="px-3 py-1 bg-muted rounded hover:bg-muted/80 text-sm font-medium"
                        >
                          <MemberNameWithStatus 
                            name={getMember(childId)?.fullName || childId}
                            isDead={!!getMember(childId)?.deathDate}
                          />
                        </Link>
                      ))
                    ) : (
                      <span className="text-muted-foreground">无记录</span>
                    )}
                  </div>
                </div>
              </div>
            </section>

            {/* 详细信息 */}
            <section>
              <h2 className="text-2xl font-serif font-bold mb-4 flex items-center gap-2">
                <span className="w-1 h-6 bg-secondary rounded-full"></span>
                详细信息
              </h2>
              <div className={`bg-card rounded-lg ${founderBorderClass} p-6 shadow-sm`}>
                <dl className="grid grid-cols-2 gap-x-8 gap-y-4 text-sm">
                  <div>
                    <dt className="text-muted-foreground mb-1">出生日期</dt>
                    <dd className="font-medium flex items-center gap-2">
                      {member.birthDate || "-"}
                      {member.birthDate && member.isLunarDate && (
                        <span className="text-xs text-amber-600 bg-amber-50 px-2 py-0.5 rounded border border-amber-200">
                          农历
                        </span>
                      )}
                    </dd>
                  </div>
                  {ageInfo && (
                    <div>
                      <dt className="text-muted-foreground mb-1">{ageInfo.type === 'deceased' ? '享年' : '年龄'}</dt>
                      <dd className="font-medium text-primary">{ageInfo.age} 岁</dd>
                    </div>
                  )}
                  {member.deathDate && (
                    <>
                      <div>
                        <dt className="text-muted-foreground mb-1">逝世日期</dt>
                        <dd className="font-medium flex items-center gap-2">
                          {member.deathDate}
                          {member.isLunarDate && (
                            <span className="text-xs text-amber-600 bg-amber-50 px-2 py-0.5 rounded border border-amber-200">
                              农历
                            </span>
                          )}
                        </dd>
                      </div>
                      <div>
                        <dt className="text-muted-foreground mb-1">谥号</dt>
                        <dd className="font-medium">{member.posthumousName || "-"}</dd>
                      </div>
                      <div>
                        <dt className="text-muted-foreground mb-1">墓地</dt>
                        <dd className="font-medium">{member.burialPlace || "-"}</dd>
                      </div>
                    </>
                  )}
                  {member.generationName && (
                    <div>
                      <dt className="text-muted-foreground mb-1">字辈</dt>
                      <dd className="font-medium">{member.generationName}</dd>
                    </div>
                  )}
                </dl>
              </div>
            </section>

            {/* 联系方式 */}
            {(member.phone || member.telephone || member.email || member.address) && (
              <section>
                <h2 className="text-2xl font-serif font-bold mb-4 flex items-center gap-2">
                  <span className="w-1 h-6 bg-secondary rounded-full"></span>
                  联系方式
                </h2>
                <div className={`bg-card rounded-lg ${founderBorderClass} p-6 shadow-sm`}>
                  <dl className="space-y-4 text-sm">
                    {member.phone && (
                      <div>
                        <dt className="text-muted-foreground">手机号</dt>
                        <dd className="font-medium">
                          <a href={`tel:${member.phone}`} className="hover:text-primary">
                            {member.phone}
                          </a>
                        </dd>
                      </div>
                    )}
                    {member.telephone && (
                      <div>
                        <dt className="text-muted-foreground">固定电话</dt>
                        <dd className="font-medium">
                          <a href={`tel:${member.telephone}`} className="hover:text-primary">
                            {member.telephone}
                          </a>
                        </dd>
                      </div>
                    )}
                    {member.email && (
                      <div>
                        <dt className="text-muted-foreground">邮箱</dt>
                        <dd className="font-medium">
                          <a href={`mailto:${member.email}`} className="hover:text-primary">
                            {member.email}
                          </a>
                        </dd>
                      </div>
                    )}
                    {member.address && (
                      <div>
                        <dt className="text-muted-foreground">现居地址</dt>
                        <dd className="font-medium">{member.address}</dd>
                      </div>
                    )}
                  </dl>
                </div>
              </section>
            )}

            <section>
              <h2 className="text-2xl font-serif font-bold mb-4 flex items-center gap-2">
                <span className="w-1 h-6 bg-primary rounded-full"></span>
                生平事迹
              </h2>
              <div className={`prose prose-stone dark:prose-invert max-w-none bg-card p-6 rounded-lg ${founderBorderClass} shadow-sm`}>
                {member.bio ? (
                  <p className="whitespace-pre-line leading-relaxed">{member.bio}</p>
                ) : (
                  <p className="text-sm text-foreground font-light tracking-wide text-center py-8">生平待书</p>
                )}
              </div>
            </section>

            {/* Photo Gallery */}
            {member.photoIds && member.photoIds.length > 0 && (
              <section>
                <h2 className="text-2xl font-serif font-bold mb-4 flex items-center gap-2">
                  <Images className="h-6 w-6 text-primary" />
                  照片墙
                </h2>
                <div className={`bg-card p-6 rounded-lg ${founderBorderClass} shadow-sm`}>
                  <PhotoGallery
                    photoIds={member.photoIds}
                    onChange={(photoIds) => updateMember(member.id, { photoIds })}
                    readonly={false}
                  />
                </div>
              </section>
            )}

            {/* Family Stories */}
            {member.stories && member.stories.length > 0 && (
              <section>
                <h2 className="text-2xl font-serif font-bold mb-4 flex items-center gap-2">
                  <BookOpen className="h-6 w-6 text-primary" />
                  家族故事
                </h2>
                <div className={`bg-card p-6 rounded-lg ${founderBorderClass} shadow-sm`}>
                  <StoryManager
                    stories={member.stories}
                    onChange={(stories) => updateMember(member.id, { stories })}
                    readonly={false}
                  />
                </div>
              </section>
            )}
          </div>

          {/* Right Column - Version History */}
          <div className="space-y-8">
            <section>
              <h2 className="text-2xl font-serif font-bold mb-4 flex items-center gap-2">
                <span className="w-1 h-6 bg-secondary rounded-full"></span>
                版本历史
              </h2>
              <MemberVersionHistory 
                memberId={member.id}
                treeId={currentTree?.id || ''}
              />
            </section>
          </div>
        </div>
      </main>
    </div>
  )
}