import { Bell, CalendarClock, Pencil, Play, Trash2 } from 'lucide-react'

import { Badge } from '@/components/ui/badge'
import { Button } from '@/components/ui/button'
import { useDeleteTask, useRunTaskNow, useUpdateTask } from '@/hooks/useMonitor'
import { useCurrentPlatform } from '@/hooks/usePlatform'
import { formatRelative } from '@/lib/monitorFormat'
import type { MonitorTask } from '@/types/monitor'

interface TaskCardProps {
  task: MonitorTask
  selected: boolean
  onSelect: () => void
  onEdit: () => void
}

/** Maps a task's last run status onto a badge variant. */
function statusVariant(status: string) {
  switch (status) {
    case 'success':
      return 'success' as const
    case 'running':
    case 'pending':
      return 'running' as const
    case 'partial':
      return 'warning' as const
    case 'failed':
    case 'timeout':
      return 'destructive' as const
    default:
      return 'idle' as const
  }
}

const STATUS_LABEL: Record<string, string> = {
  idle: '未运行',
  success: '成功',
  partial: '部分失败',
  failed: '失败',
  timeout: '超时',
  running: '运行中',
  pending: '排队中',
  interrupted: '已中断',
}

export function TaskCard({ task, selected, onSelect, onEdit }: TaskCardProps) {
  const updateTask = useUpdateTask()
  const deleteTask = useDeleteTask()
  const runNow = useRunTaskNow()
  // 按**任务自己的**平台取措辞，而不是当前平台 —— 卡片未必只出现在同平台的列表里。
  // 抖音管它们叫「作品」，小红书叫「笔记」，写死一个对另一个就是错的。
  const { platforms } = useCurrentPlatform()
  const noteNoun =
    platforms.find((entry) => entry.value === task.platform)?.target_hints?.note_label ??
    '笔记'

  // A suspected cookie failure surfaces here so it is visible without opening
  // the event feed.
  const authTrouble = task.last_status === 'partial'

  return (
    <div
      onClick={onSelect}
      className={`rounded-lg glass-panel float-panel p-3 cursor-pointer transition-all ${
        selected
          ? 'border-cyber-neon-cyan/60 shadow-glow-cyan-sm'
          : 'border-cyber-border-subtle hover:border-cyber-neon-cyan/30'
      }`}
    >
      <div className="flex items-start justify-between gap-2">
        <div className="min-w-0 flex-1">
          <div className="flex items-center gap-2 flex-wrap">
            <span className="font-mono text-sm text-cyber-text-primary truncate">{task.name}</span>
            <Badge variant="outline" className="text-[10px]">
              {task.mode === 'creator' ? '博主' : noteNoun}
            </Badge>
            <Badge variant={statusVariant(task.last_status)} className="text-[10px]">
              {STATUS_LABEL[task.last_status] ?? task.last_status}
            </Badge>
            {task.unread_events > 0 && (
              <span className="flex items-center gap-1 text-[10px] font-mono text-cyber-neon-pink">
                <Bell className="w-3 h-3" />
                {task.unread_events}
              </span>
            )}
          </div>

          <div className="mt-1.5 flex flex-wrap items-center gap-x-4 gap-y-1 text-[11px] font-mono text-cyber-text-secondary">
            <span>
              目标 <span className="text-cyber-neon-cyan">{task.target_count}</span> 个
            </span>
            {/* 由后端拼好，列表和编辑弹窗因此不会对同一个计划给出两种说法 */}
            <span>{task.schedule_label}</span>
            <span className="flex items-center gap-1">
              <CalendarClock className="w-3 h-3" />
              {task.enabled ? formatRelative(task.next_run_at) : '已暂停'}
            </span>
            <span className="text-cyber-text-muted">
              上次 {formatRelative(task.last_run_at)}
            </span>
          </div>

          {authTrouble && (
            <p className="mt-1.5 text-[10px] font-mono text-cyber-neon-orange">
              {task.last_error ?? '疑似登录态失效，请检查 Cookie'}
            </p>
          )}
        </div>

        <div className="flex items-center gap-1 flex-shrink-0">
          <Button
            variant="ghost"
            size="icon"
            title={task.enabled ? '暂停' : '启用'}
            onClick={(event) => {
              event.stopPropagation()
              updateTask.mutate({ id: task.id, payload: { enabled: !task.enabled } })
            }}
          >
            <span
              className={`status-dot ${task.enabled ? 'status-dot-online' : 'status-dot-offline'}`}
            />
          </Button>
          <Button
            variant="ghost"
            size="icon"
            title="立即运行"
            disabled={runNow.isPending}
            onClick={(event) => {
              event.stopPropagation()
              runNow.mutate(task.id)
            }}
          >
            <Play className="w-4 h-4" />
          </Button>
          <Button
            variant="ghost"
            size="icon"
            title="编辑"
            onClick={(event) => {
              event.stopPropagation()
              onEdit()
            }}
          >
            <Pencil className="w-4 h-4" />
          </Button>
          <Button
            variant="ghost"
            size="icon"
            title="删除"
            onClick={(event) => {
              event.stopPropagation()
              if (confirm(`确定删除监控任务「${task.name}」？已采集的历史数据也会一并删除。`)) {
                deleteTask.mutate(task.id)
              }
            }}
          >
            <Trash2 className="w-4 h-4 text-cyber-neon-pink" />
          </Button>
        </div>
      </div>
    </div>
  )
}