import * as React from "react"
import {
  ArrowLeft,
  Eye,
  Pencil,
  Send,
  ShieldCheck,
  Undo2,
  Upload,
  XCircle,
} from "lucide-react"

import type { RoleView, WorkflowConfig } from "@/App"
import { Badge } from "@/components/ui/badge"
import { Button } from "@/components/ui/button"
import { Card, CardContent, CardDescription, CardHeader, CardTitle } from "@/components/ui/card"
import { Input } from "@/components/ui/input"
import {
  Table,
  TableBody,
  TableCell,
  TableHead,
  TableHeader,
  TableRow,
} from "@/components/ui/table"

type WorkflowStatus = "draft" | "pending" | "prepublished" | "published" | "rejected" | "recalled"

type MiniAppContent = {
  id: string
  sourceCarId: string
  sourceCarName: string
  title: string
  subtitle: string
  highlights: string
  description: string
  ctaText: string
  scheduledPublishAt: string
  imageUrls: string[]
  workflowStatus: WorkflowStatus
  updatedBy: string
  updatedAt: string
}

type MiniAppContentLibraryProps = {
  roleView: RoleView
  workflowConfig: WorkflowConfig
  onAddAuditLog: (message: string) => void
  newContentRequest?: {
    sourceCarId: string
    sourceCarName: string
    requestId: string
  } | null
}

const CONTENTS: MiniAppContent[] = [
  {
    id: "c1",
    sourceCarId: "a3",
    sourceCarName: "Audi A3 Sportback",
    title: "Audi A3 Sportback",
    subtitle: "进取，不负期待",
    highlights: "数字座舱\n城市通勤\n智能互联",
    description: "适合城市用户的豪华紧凑车型，兼顾效率与智能体验。",
    ctaText: "立即预约试驾",
    scheduledPublishAt: "",
    imageUrls: [
      "https://images.unsplash.com/photo-1606152421802-db97b9c7a11b?auto=format&fit=crop&q=80&w=1200",
      "https://picsum.photos/seed/a3-content-1/900/600",
      "https://picsum.photos/seed/a3-content-2/900/600",
    ],
    workflowStatus: "published",
    updatedBy: "内容运营专员",
    updatedAt: "2026-04-11 10:02",
  },
  {
    id: "c2",
    sourceCarId: "a4l",
    sourceCarName: "Audi A4L",
    title: "Audi A4L 四月限时礼遇",
    subtitle: "豪华与性能平衡",
    highlights: "quattro\n商务舒适\n限时礼遇",
    description: "面向商务人群的主推内容版本，突出舒适与操控。",
    ctaText: "获取活动详情",
    scheduledPublishAt: "2026-04-14T10:00",
    imageUrls: [
      "https://images.unsplash.com/photo-1614162692292-7ac56d7f7f1e?auto=format&fit=crop&q=80&w=1200",
      "https://picsum.photos/seed/a4-content-1/900/600",
    ],
    workflowStatus: "prepublished",
    updatedBy: "业务/市场负责人",
    updatedAt: "2026-04-11 09:48",
  },
  {
    id: "c3",
    sourceCarId: "a6l",
    sourceCarName: "Audi A6L",
    title: "Audi A6L",
    subtitle: "懂你，更懂未来",
    highlights: "行政旗舰\n长轴空间\n智能辅助",
    description: "正在进行文案优化，待业务审核。",
    ctaText: "预约顾问回电",
    scheduledPublishAt: "",
    imageUrls: [
      "https://images.unsplash.com/photo-1541348263662-e0c86433610a?auto=format&fit=crop&q=80&w=1200",
    ],
    workflowStatus: "pending",
    updatedBy: "内容运营专员",
    updatedAt: "2026-04-11 09:30",
  },
  {
    id: "c4",
    sourceCarId: "q3",
    sourceCarName: "Audi Q3",
    title: "Audi Q3 城市灵动版",
    subtitle: "年轻进阶，灵动出行",
    highlights: "紧凑SUV\n智能互联\n都市通勤",
    description: "新建草稿，待进一步补充图文和活动权益信息。",
    ctaText: "预约试驾",
    scheduledPublishAt: "",
    imageUrls: [
      "https://picsum.photos/seed/q3-content-1/900/600",
    ],
    workflowStatus: "draft",
    updatedBy: "内容运营专员",
    updatedAt: "2026-04-11 08:40",
  },
  {
    id: "c5",
    sourceCarId: "q5l",
    sourceCarName: "Audi Q5L",
    title: "Audi Q5L 周末试驾礼遇",
    subtitle: "自由，由我定义",
    highlights: "四驱性能\n家庭空间\n周末活动",
    description: "因权益文案与活动规则不一致，被驳回待修订。",
    ctaText: "了解礼遇",
    scheduledPublishAt: "",
    imageUrls: [
      "https://picsum.photos/seed/q5-content-1/900/600",
    ],
    workflowStatus: "rejected",
    updatedBy: "业务/市场负责人",
    updatedAt: "2026-04-11 08:10",
  },
  {
    id: "c6",
    sourceCarId: "a8l",
    sourceCarName: "Audi A8L",
    title: "Audi A8L 尊享礼宾版",
    subtitle: "旗舰格局，沉稳之选",
    highlights: "旗舰行政\n豪华座舱\n专属服务",
    description: "已发布后因活动档期调整撤回，待重新排期。",
    ctaText: "预约专属顾问",
    scheduledPublishAt: "2026-04-15T09:30",
    imageUrls: [
      "https://picsum.photos/seed/a8-content-1/900/600",
    ],
    workflowStatus: "recalled",
    updatedBy: "业务/市场负责人",
    updatedAt: "2026-04-11 07:55",
  },
]

const WORKFLOW_LABEL: Record<WorkflowStatus, string> = {
  draft: "草稿",
  pending: "待审核",
  prepublished: "预发布",
  published: "已发布",
  rejected: "已驳回",
  recalled: "已撤回",
}

function workflowBadgeClass(status: WorkflowStatus) {
  switch (status) {
    case "draft":
      return "bg-gray-100 text-gray-700 border-gray-200"
    case "pending":
      return "bg-amber-50 text-amber-700 border-amber-200"
    case "prepublished":
      return "bg-blue-50 text-blue-700 border-blue-200"
    case "published":
      return "bg-emerald-50 text-emerald-700 border-emerald-200"
    case "rejected":
      return "bg-rose-50 text-rose-700 border-rose-200"
    case "recalled":
      return "bg-zinc-100 text-zinc-700 border-zinc-200"
  }
}

function nowString() {
  return new Date().toLocaleString("zh-CN", { hour12: false })
}

export function MiniAppContentLibrary({ roleView, workflowConfig, onAddAuditLog, newContentRequest }: MiniAppContentLibraryProps) {
  const [contents, setContents] = React.useState<MiniAppContent[]>(CONTENTS)
  const [viewMode, setViewMode] = React.useState<"list" | "editor">("list")
  const [selectedId, setSelectedId] = React.useState<string>(CONTENTS[0].id)
  const [newImageUrl, setNewImageUrl] = React.useState("")

  React.useEffect(() => {
    if (!newContentRequest) return

    const id = `c${newContentRequest.requestId}`
    const existing = contents.find((item) => item.id === id)
    if (!existing) {
      const draft: MiniAppContent = {
        id,
        sourceCarId: newContentRequest.sourceCarId,
        sourceCarName: newContentRequest.sourceCarName,
        title: newContentRequest.sourceCarName,
        subtitle: "",
        highlights: "",
        description: "",
        ctaText: "立即预约试驾",
        scheduledPublishAt: "",
        imageUrls: [],
        workflowStatus: "draft",
        updatedBy: "内容运营专员",
        updatedAt: nowString(),
      }
      setContents((prev) => [draft, ...prev])
    }

    setSelectedId(id)
    setViewMode("editor")
  }, [newContentRequest?.requestId])

  const canEdit = roleView === "content-ops"
  const canApprove = roleView === "biz-market"
  const selected = contents.find((item) => item.id === selectedId) ?? null

  const updateContent = (id: string, patch: Partial<MiniAppContent>) => {
    setContents((prev) =>
      prev.map((item) => (item.id === id ? { ...item, ...patch, updatedAt: nowString() } : item))
    )
  }

  const saveDraft = (item: MiniAppContent) => {
    updateContent(item.id, { workflowStatus: "draft", updatedBy: "内容运营专员" })
    onAddAuditLog(`内容运营专员保存 ${item.sourceCarName} 内容草稿`)
  }

  const submitForReview = (item: MiniAppContent) => {
    updateContent(item.id, { workflowStatus: "pending", updatedBy: "内容运营专员" })
    onAddAuditLog(`内容运营专员提交 ${item.sourceCarName} 到审核队列`)
  }

  const withdrawReview = (item: MiniAppContent) => {
    updateContent(item.id, { workflowStatus: "draft", updatedBy: "内容运营专员" })
    onAddAuditLog(`内容运营专员撤回 ${item.sourceCarName} 的审核申请`)
  }

  const approve = (item: MiniAppContent) => {
    const nextStatus: WorkflowStatus = workflowConfig.enablePrePublish ? "prepublished" : "published"
    updateContent(item.id, { workflowStatus: nextStatus, updatedBy: "业务/市场负责人" })
    onAddAuditLog(`业务/市场负责人审批通过 ${item.sourceCarName}`)
  }

  const reject = (item: MiniAppContent) => {
    updateContent(item.id, { workflowStatus: "rejected", updatedBy: "业务/市场负责人" })
    onAddAuditLog(`业务/市场负责人驳回 ${item.sourceCarName} 内容版本`)
  }

  const publish = (item: MiniAppContent) => {
    const actor = roleView === "biz-market" ? "业务/市场负责人" : "内容运营专员"
    updateContent(item.id, { workflowStatus: "published", updatedBy: actor })
    onAddAuditLog(`${actor}发布 ${item.sourceCarName} 到小程序`)
  }

  const recall = (item: MiniAppContent) => {
    updateContent(item.id, { workflowStatus: "recalled", updatedBy: "业务/市场负责人" })
    onAddAuditLog(`业务/市场负责人撤回 ${item.sourceCarName} 已发布内容`)
  }

  const revive = (item: MiniAppContent) => {
    const nextStatus: WorkflowStatus = workflowConfig.enablePrePublish ? "prepublished" : "published"
    updateContent(item.id, { workflowStatus: nextStatus, updatedBy: "业务/市场负责人" })
    onAddAuditLog(`业务/市场负责人恢复 ${item.sourceCarName} 的发布流程`)
  }

  const createNewVersion = (item: MiniAppContent) => {
    updateContent(item.id, { workflowStatus: "draft", updatedBy: "内容运营专员" })
    onAddAuditLog(`内容运营专员基于 ${item.sourceCarName} 发布版本创建新稿`)
  }

  const addImage = (item: MiniAppContent) => {
    const next = newImageUrl.trim()
    if (!next) return
    updateContent(item.id, { imageUrls: [...item.imageUrls, next] })
    setNewImageUrl("")
  }

  const removeImage = (item: MiniAppContent, idx: number) => {
    updateContent(item.id, { imageUrls: item.imageUrls.filter((_, i) => i !== idx) })
  }

  const renderActions = (item: MiniAppContent) => {
    const actions: React.ReactNode[] = []

    if (canEdit) {
      if (item.workflowStatus === "draft" || item.workflowStatus === "rejected" || item.workflowStatus === "recalled") {
        actions.push(
          <Button key="submit" size="sm" variant="outline" onClick={() => submitForReview(item)}>
            <Send className="mr-1 h-3.5 w-3.5" />{item.workflowStatus === "draft" ? "提交审核" : "重新提审"}
          </Button>
        )
      }
      if (item.workflowStatus === "pending") {
        actions.push(
          <Button key="withdraw" size="sm" variant="outline" onClick={() => withdrawReview(item)}>
            <Undo2 className="mr-1 h-3.5 w-3.5" />撤回提审
          </Button>
        )
      }
      if (item.workflowStatus === "prepublished") {
        actions.push(
          <Button key="publish" size="sm" variant="outline" onClick={() => publish(item)}>
            <Upload className="mr-1 h-3.5 w-3.5" />发布
          </Button>
        )
      }
      if (item.workflowStatus === "published") {
        actions.push(
          <Button key="new-version" size="sm" variant="outline" onClick={() => createNewVersion(item)}>
            <Pencil className="mr-1 h-3.5 w-3.5" />新建版本
          </Button>
        )
      }
    }

    if (canApprove) {
      if (item.workflowStatus === "pending") {
        actions.push(
          <Button key="approve" size="sm" variant="outline" onClick={() => approve(item)}>
            <ShieldCheck className="mr-1 h-3.5 w-3.5" />通过
          </Button>
        )
        actions.push(
          <Button key="reject" size="sm" variant="outline" onClick={() => reject(item)}>
            <XCircle className="mr-1 h-3.5 w-3.5" />驳回
          </Button>
        )
      }
      if (workflowConfig.allowRecall && item.workflowStatus === "published") {
        actions.push(
          <Button key="recall" size="sm" variant="outline" onClick={() => recall(item)}>
            <Undo2 className="mr-1 h-3.5 w-3.5" />撤回
          </Button>
        )
      }
      if (item.workflowStatus === "recalled") {
        actions.push(
          <Button key="revive" size="sm" variant="outline" onClick={() => revive(item)}>
            <Upload className="mr-1 h-3.5 w-3.5" />恢复流程
          </Button>
        )
      }
    }

    actions.push(
      <Button key="detail" size="sm" variant="ghost" onClick={() => { setSelectedId(item.id); setViewMode("editor") }}>
        <Eye className="mr-1 h-3.5 w-3.5" />详情
      </Button>
    )

    return actions
  }

  if (viewMode === "editor" && selected) {
    const highlights = selected.highlights
      .split("\n")
      .map((s) => s.trim())
      .filter(Boolean)

    return (
      <div className="flex flex-col gap-6 p-8">
        <div className="flex items-center justify-between">
          <div className="flex items-center gap-3">
            <Button variant="outline" size="sm" onClick={() => setViewMode("list")}>
              <ArrowLeft className="mr-1 h-3.5 w-3.5" />返回列表
            </Button>
            <div>
              <h1 className="text-3xl font-bold tracking-tight">小程序内容编辑</h1>
              <p className="text-muted-foreground">独立编辑页：左侧字段编辑，右侧手机窗口预览。</p>
            </div>
          </div>
          <Badge variant="outline" className={workflowBadgeClass(selected.workflowStatus)}>
            当前状态：{WORKFLOW_LABEL[selected.workflowStatus]}
          </Badge>
        </div>

        <div className="grid gap-6 xl:grid-cols-2">
          <Card className="border-none shadow-sm bg-white">
            <CardHeader>
              <CardTitle className="text-lg font-bold">编辑字段</CardTitle>
              <CardDescription>基于官网源车型生成的内容实体（MiniAppContent）。</CardDescription>
            </CardHeader>
            <CardContent className="space-y-4">
              <div className="grid gap-2">
                <label className="text-xs font-semibold tracking-wide text-muted-foreground uppercase">来源车型</label>
                <Input value={selected.sourceCarName} disabled />
              </div>

              <div className="grid gap-2">
                <label className="text-xs font-semibold tracking-wide text-muted-foreground uppercase">标题</label>
                <Input value={selected.title} disabled={!canEdit} onChange={(e) => updateContent(selected.id, { title: e.target.value })} />
              </div>

              <div className="grid gap-2">
                <label className="text-xs font-semibold tracking-wide text-muted-foreground uppercase">副标题</label>
                <Input value={selected.subtitle} disabled={!canEdit} onChange={(e) => updateContent(selected.id, { subtitle: e.target.value })} />
              </div>

              <div className="grid gap-2">
                <label className="text-xs font-semibold tracking-wide text-muted-foreground uppercase">卖点（每行一条）</label>
                <textarea
                  className="min-h-24 rounded-lg border border-input bg-background px-3 py-2 text-sm outline-none focus-visible:border-ring"
                  value={selected.highlights}
                  disabled={!canEdit}
                  onChange={(e) => updateContent(selected.id, { highlights: e.target.value })}
                />
              </div>

              <div className="grid gap-2">
                <label className="text-xs font-semibold tracking-wide text-muted-foreground uppercase">图文描述（轻量编排）</label>
                <textarea
                  className="min-h-28 rounded-lg border border-input bg-background px-3 py-2 text-sm outline-none focus-visible:border-ring"
                  value={selected.description}
                  disabled={!canEdit}
                  onChange={(e) => updateContent(selected.id, { description: e.target.value })}
                />
              </div>

              <div className="grid gap-2">
                <label className="text-xs font-semibold tracking-wide text-muted-foreground uppercase">按钮文案</label>
                <Input value={selected.ctaText} disabled={!canEdit} onChange={(e) => updateContent(selected.id, { ctaText: e.target.value })} />
              </div>

              {workflowConfig.publishStrategy === "scheduled" && (
                <div className="grid gap-2">
                  <label className="text-xs font-semibold tracking-wide text-muted-foreground uppercase">预约发布时间</label>
                  <Input
                    type="datetime-local"
                    disabled={!canEdit}
                    value={selected.scheduledPublishAt}
                    onChange={(e) => updateContent(selected.id, { scheduledPublishAt: e.target.value })}
                  />
                </div>
              )}

              <div className="grid gap-2">
                <label className="text-xs font-semibold tracking-wide text-muted-foreground uppercase">图片素材（多图）</label>
                <div className="flex gap-2">
                  <Input value={newImageUrl} disabled={!canEdit} onChange={(e) => setNewImageUrl(e.target.value)} placeholder="粘贴图片 URL" />
                  <Button variant="outline" disabled={!canEdit} onClick={() => addImage(selected)}>新增</Button>
                </div>
                <div className="grid grid-cols-2 gap-2">
                  {selected.imageUrls.map((url, idx) => (
                    <div key={`${url}-${idx}`} className="rounded-lg border p-2">
                      <img src={url} alt={`${selected.sourceCarName}-${idx}`} className="aspect-video w-full rounded object-cover" />
                      <div className="mt-2 flex justify-end">
                        <Button size="sm" variant="ghost" disabled={!canEdit} onClick={() => removeImage(selected, idx)}>
                          删除
                        </Button>
                      </div>
                    </div>
                  ))}
                </div>
              </div>

              <div className="flex gap-2 pt-2">
                <Button variant="outline" disabled={!canEdit} onClick={() => saveDraft(selected)}>
                  <Pencil className="mr-1 h-3.5 w-3.5" />保存草稿
                </Button>
                <Button disabled={!canEdit} onClick={() => submitForReview(selected)}>
                  <Send className="mr-1 h-3.5 w-3.5" />提交审核
                </Button>
              </div>
            </CardContent>
          </Card>

          <Card className="border-none shadow-sm bg-white">
            <CardHeader>
              <CardTitle className="text-lg font-bold">小程序预览（手机窗口）</CardTitle>
              <CardDescription>按钮上方展示预约试驾表单视觉区（仅演示，不提交）。</CardDescription>
            </CardHeader>
            <CardContent className="flex justify-center">
              <div className="w-[360px] rounded-[28px] border border-gray-200 bg-white shadow-2xl overflow-hidden">
                <div className="h-9 bg-black text-white px-4 flex items-center text-[10px] tracking-[0.18em] uppercase">Audi</div>
                <div className="relative">
                  <img src={selected.imageUrls[0]} alt={selected.title} className="h-48 w-full object-cover" />
                  <div className="absolute inset-0 bg-gradient-to-t from-black/65 to-transparent" />
                  <div className="absolute left-4 right-4 bottom-3 text-white">
                    <p className="text-lg font-bold tracking-tight">{selected.title}</p>
                    <p className="text-xs opacity-85">{selected.subtitle}</p>
                  </div>
                </div>

                <div className="p-4">
                  <div className="mb-3 grid grid-cols-3 gap-2">
                    {selected.imageUrls.slice(0, 3).map((url, idx) => (
                      <img key={`${url}-${idx}`} src={url} alt={`thumb-${idx}`} className="h-16 w-full rounded object-cover" />
                    ))}
                  </div>

                  <div className="space-y-2">
                    {highlights.map((item) => (
                      <div key={item} className="inline-flex mr-2 mb-1 rounded-full border px-2 py-0.5 text-[10px] text-gray-600">
                        {item}
                      </div>
                    ))}
                  </div>

                  <p className="mt-3 text-sm leading-6 text-gray-600">{selected.description}</p>

                  {workflowConfig.publishStrategy === "scheduled" && selected.scheduledPublishAt && (
                    <div className="mt-3 rounded-md border border-blue-200 bg-blue-50 px-3 py-2 text-xs text-blue-700">
                      预约发布时间：{selected.scheduledPublishAt.replace("T", " ")}
                    </div>
                  )}

                  <div className="mt-4 space-y-3 rounded-lg border border-gray-200 bg-gray-50 p-3">
                    <div className="grid gap-1">
                      <label className="text-[10px] uppercase tracking-wider text-gray-500 font-semibold">姓名</label>
                      <Input placeholder="请输入您的姓名" disabled />
                    </div>
                    <div className="grid gap-1">
                      <label className="text-[10px] uppercase tracking-wider text-gray-500 font-semibold">手机号</label>
                      <Input placeholder="请输入手机号" disabled />
                    </div>
                    <div className="grid gap-1">
                      <label className="text-[10px] uppercase tracking-wider text-gray-500 font-semibold">意向城市</label>
                      <div className="flex gap-2">
                        <select className="h-8 flex-1 rounded-lg border border-input bg-white px-2 text-sm text-gray-500" disabled>
                          <option>请选择城市</option>
                        </select>
                        <Button
                          type="button"
                          size="sm"
                          variant="outline"
                          onClick={() => alert("获取位置功能为原型占位提示")}
                        >
                          获取位置
                        </Button>
                      </div>
                    </div>

                    <label className="flex items-start gap-2 text-[11px] leading-5 text-gray-600">
                      <input type="checkbox" className="mt-0.5" />
                      <span>
                        我已阅读并同意《个人信息保护政策》，授权奥迪及授权经销商与我联系。
                      </span>
                    </label>
                  </div>

                  <Button className="mt-4 w-full bg-audi-black hover:bg-audi-dark-gray text-white" disabled>
                    {selected.ctaText || "立即预约试驾"}
                  </Button>
                </div>
              </div>
            </CardContent>
          </Card>
        </div>
      </div>
    )
  }

  return (
    <div className="flex flex-col gap-6 p-8">
      <div className="flex items-center justify-between">
        <div className="flex flex-col gap-1">
          <h1 className="text-3xl font-bold tracking-tight">小程序内容库</h1>
          <p className="text-muted-foreground">集中管理编辑、审核、保存和发布后的内容版本。</p>
        </div>
      </div>

      <Card className="border-none shadow-sm bg-white">
        <CardHeader>
          <CardTitle className="text-lg font-bold">内容版本列表</CardTitle>
          <CardDescription>与官网车型源数据分离，避免同步数据和发布内容混用。</CardDescription>
        </CardHeader>
        <CardContent>
          <Table>
            <TableHeader>
              <TableRow className="hover:bg-transparent border-b border-gray-100">
                <TableHead className="font-bold text-audi-black">来源车型</TableHead>
                <TableHead className="font-bold text-audi-black">内容标题</TableHead>
                <TableHead className="font-bold text-audi-black">状态</TableHead>
                <TableHead className="font-bold text-audi-black">最近更新</TableHead>
                <TableHead className="text-right font-bold text-audi-black">操作</TableHead>
              </TableRow>
            </TableHeader>
            <TableBody>
              {contents.map((item) => (
                <TableRow key={item.id} className="hover:bg-gray-50/50 border-b border-gray-50 transition-colors">
                  <TableCell>
                    <p className="font-medium">{item.sourceCarName}</p>
                    <p className="text-xs text-muted-foreground">{item.sourceCarId}</p>
                  </TableCell>
                  <TableCell className="font-medium">{item.title}</TableCell>
                  <TableCell>
                    <Badge variant="outline" className={workflowBadgeClass(item.workflowStatus)}>
                      {WORKFLOW_LABEL[item.workflowStatus]}
                    </Badge>
                  </TableCell>
                  <TableCell className="text-xs text-muted-foreground">
                    <p>{item.updatedAt}</p>
                    <p>{item.updatedBy}</p>
                  </TableCell>
                  <TableCell className="text-right">
                    <div className="flex flex-wrap justify-end gap-2">{renderActions(item)}</div>
                  </TableCell>
                </TableRow>
              ))}
            </TableBody>
          </Table>
        </CardContent>
      </Card>
    </div>
  )
}