/**
 * Phase 1 Header 重构
 * 扁平化导航菜单 + 手机端汉堡菜单
 * v2: 增加积分徽章、升级会员入口、我的积分入口
 */
import React, { useEffect, useState } from "react"
import { Avatar, Badge, Button, Dropdown, Drawer, Space, Tooltip } from "antd"
import {
  LogoutOutlined,
  SettingOutlined,
  UserOutlined,
  MenuOutlined,
  CrownFilled,
  ThunderboltOutlined,
  HistoryOutlined,
  WalletOutlined,
} from "@ant-design/icons"
import { useLocation, useNavigate } from "react-router-dom"
import { useAuthStore } from "@/store/authStore"
import { useLogout } from "@/hooks/useAuth"
import type { MenuProps } from "antd"
import { NAV_ITEMS } from "@/config/navigation"
import PointsBadge from "@/components/common/PointsBadge"
import { ENABLE_CREDIT_SYSTEM } from "@/config/features"
import { usePointsStore } from "@/store/pointsStore"
import "./Header.css"

const Header: React.FC = () => {
  const navigate = useNavigate()
  const location = useLocation()
  const user = useAuthStore((state) => state.user)
  const logoutMutation = useLogout()
  const [mobileMenuOpen, setMobileMenuOpen] = useState(false)

  // 积分与会员状态
  const { balance, init } = usePointsStore()
  useEffect(() => {
    init()
    // 每 60s 刷新一次（余额可能变化）
    const t = setInterval(() => init(), 60_000)
    return () => clearInterval(t)
  }, [init])

  const isMember = !!balance?.is_member
  const memberType = balance?.member_type ?? null

  /** 用户下拉菜单 */
  const menuItems: MenuProps["items"] = [
    {
      key: "profile",
      icon: <UserOutlined />,
      label: "个人设置",
      onClick: () => navigate("/app/profile"),
    },
    {
      key: "subscription",
      icon: <SettingOutlined />,
      label: "订阅管理",
      onClick: () => navigate("/app/subscription"),
    },
    // 积分系统开关关闭时隐藏积分相关菜单项（代码保留不删除）
    ...(ENABLE_CREDIT_SYSTEM
      ? [
          {
            key: "points-center",
            icon: <ThunderboltOutlined />,
            label: (
              <Space>
                我的积分
                {balance && (
                  <span style={{ color: "#8b5cf6", fontWeight: 700 }}>{balance.balance}</span>
                )}
              </Space>
            ),
            onClick: () => navigate("/app/points"),
          },
          {
            key: "points-history",
            icon: <HistoryOutlined />,
            label: "积分明细",
            onClick: () => navigate("/app/points/transactions"),
          },
          {
            key: "recharge",
            icon: <WalletOutlined />,
            label: "充值积分",
            onClick: () => navigate("/app/points/recharge"),
          },
        ]
      : []),
    { type: "divider" },
    {
      key: "logout",
      icon: <LogoutOutlined />,
      label: "退出登录",
      onClick: () => logoutMutation.mutateAsync(),
    },
  ]

  /** 判断导航项是否激活 */
  const isActive = (path: string) => {
    if (path === "/app/dashboard") {
      return (
        location.pathname === "/" ||
        location.pathname === "/app" ||
        location.pathname === "/app/dashboard"
      )
    }
    return location.pathname.startsWith(path)
  }

  return (
    <header className="xx-top-nav">
      <div className="xx-top-nav-inner">
        <button className="xx-brand" type="button" onClick={() => navigate("/app/dashboard")}>
          <span className="xx-logo">🦐</span>
          <span className="xx-brand-text">小虾自动剪辑</span>
        </button>

        {/* 桌面端导航 */}
        <nav className="xx-nav-links">
          {NAV_ITEMS.map((item) => (
            <button
              key={item.key}
              className={isActive(item.path) ? "active" : ""}
              type="button"
              onClick={() => navigate(item.path)}
            >
              {item.label}
            </button>
          ))}
        </nav>

        <div className="xx-right-section">
          {/* v2: 积分徽章（顶部显示） */}
          <PointsBadge />

          {/* v2: 升级会员入口（仅免费用户显示） */}
          {!isMember && (
            <Tooltip
              title={
                ENABLE_CREDIT_SYSTEM
                  ? "升级会员解锁无限混剪、批量导出，积分 8 折起"
                  : "升级会员解锁无限混剪、批量导出"
              }
            >
              <Button
                type="primary"
                size="small"
                icon={<CrownFilled />}
                className="xx-upgrade-btn"
                onClick={() => navigate("/app/subscription")}
              >
                升级会员
              </Button>
            </Tooltip>
          )}

          {/* v2: 付费会员显示金冠标识 */}
          {isMember && (
            <Tooltip
              title={`${memberType === "yearly" ? "年卡" : memberType === "quarterly" ? "季卡" : "月卡"}会员${
                balance?.member_expires_at
                  ? ` · 到期 ${new Date(balance.member_expires_at).toLocaleDateString("zh-CN")}`
                  : ""
              }`}
            >
              <Badge dot color="gold">
                <Button
                  type="text"
                  size="small"
                  icon={<CrownFilled style={{ color: "#f59e0b" }} />}
                  className="xx-crown-btn"
                  onClick={() => navigate("/app/subscription")}
                >
                  {memberType === "yearly" ? "年卡" : memberType === "quarterly" ? "季卡" : "会员"}
                </Button>
              </Badge>
            </Tooltip>
          )}

          {/* 手机端汉堡菜单按钮 */}
          <button className="xx-hamburger" type="button" onClick={() => setMobileMenuOpen(true)}>
            <MenuOutlined />
          </button>

          <Dropdown menu={{ items: menuItems }} placement="bottomRight">
            <Space className="xx-user-menu">
              <Avatar className="xx-avatar" icon={<UserOutlined />} />
              <span className="xx-username">
                {user?.display_name || user?.username || "小虾用户"}
              </span>
            </Space>
          </Dropdown>
        </div>
      </div>

      {/* 手机端侧边抽屉导航 */}
      <Drawer
        title="导航菜单"
        placement="left"
        onClose={() => setMobileMenuOpen(false)}
        open={mobileMenuOpen}
        width={260}
        className="xx-mobile-drawer"
      >
        {/* 手机端积分/会员入口 */}
        {balance && (
          <div className="xx-mobile-points-row">
            <PointsBadge />
            {!isMember ? (
              <Button
                size="small"
                type="primary"
                icon={<CrownFilled />}
                onClick={() => {
                  navigate("/app/subscription")
                  setMobileMenuOpen(false)
                }}
              >
                升级
              </Button>
            ) : (
              <span className="xx-mobile-member-tag">
                <CrownFilled style={{ color: "#f59e0b" }} />{" "}
                {memberType === "yearly" ? "年卡" : memberType === "quarterly" ? "季卡" : "月卡"}
              </span>
            )}
          </div>
        )}

        <div className="xx-mobile-nav">
          {NAV_ITEMS.map((item) => (
            <button
              key={item.key}
              className={`xx-mobile-nav-item ${isActive(item.path) ? "active" : ""}`}
              type="button"
              onClick={() => {
                navigate(item.path)
                setMobileMenuOpen(false)
              }}
            >
              <span className="xx-mobile-nav-icon">{item.icon}</span>
              <span>{item.label}</span>
            </button>
          ))}
        </div>
      </Drawer>
    </header>
  )
}

export default Header