import { useEffect, useState } from "react";
import { CircleDollarSign, KeyRound, UserPlus } from "lucide-react";
import { api } from "../api";
import type { BillingSummary, Notification, Team, TeamMember, User } from "../types";
import type { Page } from "./route-config";
import { money } from "./stage-config";
import { ConfirmModal, TeamModal } from "../components/overlays";
import { Pager } from "../components/pager";

const MEMBERS_PER_PAGE = 10;

// 角色 → pill key/label(对齐 api-bridge roleUi)
function roleUi(role: string): { key: "super" | "admin" | "member"; label: string } {
  if (role === "owner" || role === "super") return { key: "super", label: "超管" };
  if (role === "admin") return { key: "admin", label: "团管" };
  if (role === "viewer") return { key: "member", label: "访客" };
  return { key: "member", label: "成员" };
}

const PERM_ROWS: Array<{ cap: string; cells: [string, string, string]; last?: boolean }> = [
  { cap: "邀请 / 移除成员", cells: ["✓", "✓", "—"] },
  { cap: "设置成员额度", cells: ["✓", "✓", "—"] },
  { cap: "团队充值", cells: ["✓", "—", "—"] },
  { cap: "设置月限额", cells: ["✓", "—", "—"] },
  { cap: "编辑别人项目", cells: ["✓", "✓", "—"] },
  { cap: "团队共享资产库管理", cells: ["✓", "✓", "仅自传"] },
  { cap: "查看团队消费明细", cells: ["✓", "✓", "仅自己"] },
  { cap: "创建项目 / 用 AI 流程", cells: ["✓", "✓", "✓"], last: true }
];

export function TeamPage({ team, user, billing, navigate, onCreateMember: onCreateMemberRaw, onUpdateMember: onUpdateMemberRaw, onRemoveMember: onRemoveMemberRaw, onResetPassword, onRecharge: onRechargeRaw }: {
  team: Team;
  user: User;
  billing: BillingSummary | null;
  navigate: (page: Page) => void;
  onCreateMember: (payload: { username: string; password: string; name?: string; role?: string; monthly_credit_limit?: number }) => void | Promise<unknown>;
  onUpdateMember: (id: string, payload: { role?: string; monthly_credit_limit?: number }) => void | Promise<unknown>;
  onRemoveMember: (id: string) => void | Promise<unknown>;
  onResetPassword: (id: string, password: string) => void | Promise<unknown>;
  onRecharge: (amount: number, bonus: number) => void | Promise<unknown>;
}) {
  const [modal, setModal] = useState<"" | "invite" | "limit" | "recharge">("");
  const [search, setSearch] = useState("");

  // 团队成员 + 团队动态本页懒加载(不再走全局 bootstrap);成员/充值操作后 bump 刷新
  const [reloadFlag, setReloadFlag] = useState(0);
  const [members, setMembers] = useState<TeamMember[]>([]);
  const [notifications, setNotifications] = useState<Notification[]>([]);
  const [notificationTotal, setNotificationTotal] = useState(0);
  useEffect(() => {
    let alive = true;
    api.teamMembers().then((m) => { if (alive) setMembers(m); }).catch(() => {});
    api.allNotifications().then((n) => { if (alive) { setNotifications(n.results); setNotificationTotal(n.count); } }).catch(() => {});
    return () => { alive = false; };
  }, [reloadFlag]);
  const reloadTeam = () => setReloadFlag((n) => n + 1);
  // 包一层:操作完成后刷新本页成员列表(余额由全局 action→loadData 刷新);透传返回值(调用处据此判成功)
  const onCreateMember = async (p: Parameters<typeof onCreateMemberRaw>[0]) => { const r = await onCreateMemberRaw(p); reloadTeam(); return r; };
  const onUpdateMember = async (id: string, p: Parameters<typeof onUpdateMemberRaw>[1]) => { const r = await onUpdateMemberRaw(id, p); reloadTeam(); return r; };
  const onRemoveMember = async (id: string) => { const r = await onRemoveMemberRaw(id); reloadTeam(); return r; };
  const onRecharge = async (amount: number, bonus: number) => { const r = await onRechargeRaw(amount, bonus); reloadTeam(); return r; };

  // 创建账户表单
  const [cuUser, setCuUser] = useState("");
  const [cuPass, setCuPass] = useState("");
  const [cuName, setCuName] = useState("");
  const [cuRole, setCuRole] = useState("member");
  const [cuMonthly, setCuMonthly] = useState("");

  // 编辑成员
  const [editTarget, setEditTarget] = useState<TeamMember | null>(null);
  const [edRole, setEdRole] = useState("member");
  const [edMonthly, setEdMonthly] = useState("");

  // 重置密码
  const [resetTarget, setResetTarget] = useState<TeamMember | null>(null);
  const [resetPwd, setResetPwd] = useState("");

  // 移除成员
  const [removeTarget, setRemoveTarget] = useState<TeamMember | null>(null);

  // 团队充值
  const [rechargeAmt, setRechargeAmt] = useState("500");

  const rows: TeamMember[] = members.length
    ? members
    : [{ id: "owner", role: "owner", status: "active", monthly_credit_limit: "0", user } as TeamMember];

  // 统计 · 对齐 api-bridge renderLiveTeamPayload
  const balance = Number(billing?.account.balance || 0);
  const used = Number(billing?.charged_total || 0);
  const limit = rows.reduce((sum, member) => sum + Math.max(0, Number(member.monthly_credit_limit || 0)), 0) || balance;
  const left = Math.max(0, limit - used);
  const pct = limit > 0 ? Math.min(100, (used / limit) * 100) : 0;

  // 团队动态:取最近 6 条真实通知
  const feedItems = [...notifications]
    .sort((a, b) => new Date(b.created_at).getTime() - new Date(a.created_at).getTime())
    .slice(0, 6);

  const needle = search.trim().toLowerCase();
  const list = rows.filter((member) => {
    const name = member.user.username || "";
    const email = member.user.email || "";
    return !needle || `${name} ${email}`.toLowerCase().includes(needle);
  });
  // 成员分页:每页 10 人,搜索变化回第 1 页
  const [memberPage, setMemberPage] = useState(1);
  useEffect(() => { setMemberPage(1); }, [search]);
  const memberTotalPages = Math.max(1, Math.ceil(list.length / MEMBERS_PER_PAGE));
  const memberCurPage = Math.min(memberPage, memberTotalPages);
  const pagedMembers = list.slice((memberCurPage - 1) * MEMBERS_PER_PAGE, memberCurPage * MEMBERS_PER_PAGE);

  function openEdit(member: TeamMember) {
    setEditTarget(member);
    setEdRole(member.role === "owner" ? "admin" : member.role || "member");
    setEdMonthly(Number(member.monthly_credit_limit || 0) > 0 ? String(Number(member.monthly_credit_limit)) : "");
  }

  async function submitCreate() {
    if (!cuUser.trim() || cuPass.length < 8) return;
    const created = await onCreateMember({
      username: cuUser.trim(),
      password: cuPass,
      name: cuName.trim() || undefined,
      role: cuRole,
      monthly_credit_limit: Number(cuMonthly) || 0
    });
    // 创建失败(action 报错返回 null)时保持弹窗与已填内容,只成功才关闭并清空
    if (!created) return;
    setModal("");
    setCuUser("");
    setCuPass("");
    setCuName("");
    setCuRole("member");
    setCuMonthly("");
  }

  async function submitEdit() {
    if (!editTarget) return;
    await onUpdateMember(editTarget.id, { role: edRole, monthly_credit_limit: Number(edMonthly) || 0 });
    setEditTarget(null);
  }

  async function submitReset() {
    if (!resetTarget || resetPwd.length < 8) return;
    await onResetPassword(resetTarget.id, resetPwd);
    setResetTarget(null);
    setResetPwd("");
  }

  async function submitRemove() {
    if (!removeTarget) return;
    await onRemoveMember(removeTarget.id);
    setRemoveTarget(null);
  }

  async function submitRecharge() {
    const amt = Number(rechargeAmt) || 0;
    if (amt <= 0) return;
    await onRecharge(amt, 0);
    setModal("");
  }

  return (
    <section className="team-page">
      <div className="page-head">
        <div>
          <h1>团队管理</h1>
          <div className="sub"><span className="mono">// 成员 · 角色 · 额度 · 共享资产库</span></div>
        </div>
        <div className="actions">
          <button className="btn btn-primary" type="button" id="open-invite" onClick={() => setModal("invite")}>
            <svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="1.5" strokeLinecap="round" strokeLinejoin="round"><path d="M16 21v-2a4 4 0 0 0-4-4H6a4 4 0 0 0-4 4v2" /><circle cx="9" cy="7" r="4" /><path d="M19 8v6M22 11h-6" /></svg>
            创建账户
          </button>
        </div>
      </div>

      {/* 顶部行:团队 banner(左)+ 团队动态(右) */}
      <div className="team-top">

        <div className="team-banner">
          <span className="corner-tr" aria-hidden></span><span className="corner-bl" aria-hidden></span>

          <div className="banner-head">
            <div className="banner-id">
              <div className="lbl">[ TEAM ]</div>
              <div className="nm">{team.name} <span className="tag">企业</span></div>
              <div className="meta">// 团队 ID: {team.id} · {rows.length} 名成员</div>
            </div>
            <div className="banner-actions">
              <button className="btn btn-sm" type="button" onClick={() => setModal("recharge")}>
                <svg width="13" height="13" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="1.8" strokeLinecap="round" strokeLinejoin="round"><circle cx="12" cy="12" r="9" /><path d="M12 7v10M9 10h4a1.5 1.5 0 0 1 0 3h-3a1.5 1.5 0 0 0 0 3h4" /></svg>
                充值
              </button>
              <button className="btn btn-ghost btn-sm" type="button" id="open-limit" onClick={() => setModal("limit")}>设置月限额</button>
            </div>
          </div>

          <div className="banner-divider"></div>

          <div className="banner-stats">
            <div className="stat">
              <div className="lbl">[ 充值余额 ]</div>
              <div className="v">{money(balance)}</div>
              <div className="sub">// 团队总池</div>
            </div>
            <div className="stat">
              <div className="lbl">[ 月限额 ]</div>
              <div className="v" id="stat-limit">{money(limit)}</div>
              <div className="sub">// 自然月重置</div>
            </div>
            <div className="stat">
              <div className="lbl">[ 当月已用 ]</div>
              <div className="v" id="stat-used">{money(used)}</div>
              <div className="sub" id="stat-used-sub">// 占月限 {pct.toFixed(1)}%</div>
            </div>
            <div className="stat">
              <div className="lbl">[ 当月剩余 ]</div>
              <div className="v warn" id="stat-left">{money(left)}</div>
              <div className="sub" id="stat-left-sub">// 还可生成约 {Math.max(0, Math.round(left / 10))} 个项目</div>
            </div>
          </div>
        </div>

        {/* 团队动态(banner 右栏)· 接真实 ops/notifications 事件流 */}
        <div className="team-feed">
          <div className="h">
            <h3>团队动态</h3>
            <span className="ct">// 最近 {Math.min(feedItems.length, 6)} 条 · 共 {notificationTotal ?? notifications.length}</span>
            <a className="more" id="open-feed-all" role="button" tabIndex={0} onClick={() => navigate("messages")}>全部 →</a>
          </div>
          <div className="feed-list">
            {feedItems.length === 0 ? (
              <div className="feed-item">
                <div className="av">{(team.name || "T").slice(0, 1).toUpperCase()}</div>
                <div>
                  <div className="txt"><span className="who">{team.name}</span><span className="act">已同步</span><span className="obj">{rows.length} 名成员</span></div>
                  <div className="ts">// 暂无团队动态</div>
                </div>
              </div>
            ) : (
              feedItems.map((n) => (
                <div className="feed-item" key={n.id}>
                  <div className="av">{(n.owner_label || n.source || team.name || "·").slice(0, 1).toUpperCase()}</div>
                  <div>
                    <div className="txt">
                      <span className="who">{n.owner_label || n.source || "系统"}</span>
                      <span className="act">{n.title}</span>
                      {n.project_name && <span className="obj">{n.project_name}</span>}
                    </div>
                    <div className="ts">{n.created_at ? new Date(n.created_at).toLocaleString("zh-CN") : n.brief}</div>
                  </div>
                </div>
              ))
            )}
          </div>
        </div>

      </div>{/* /.team-top */}

      <div className="team-grid">
        {/* 左:成员表 */}
        <div>
          <div className="pane" style={{ padding: 0 }}>
            <div style={{ display: "flex", alignItems: "center", padding: "16px 20px", borderBottom: "1px solid var(--border-faint)" }}>
              <h3 style={{ margin: 0 }}>成员列表 <span className="ct">// {list.length} / {rows.length} 人 · 真实团队表</span></h3>
              <span className="spacer"></span>
              <input className="input" id="member-search" placeholder="搜索姓名 / 手机号" style={{ height: "32px", fontSize: "12px", width: "220px" }} value={search} onChange={(event) => setSearch(event.target.value)} />
            </div>
            <div className="members-table-wrap">
            <table className="t members-table" style={{ border: 0, borderRadius: 0 }}>
              <thead>
                <tr>
                  <th>成员</th>
                  <th>角色</th>
                  <th>每日额度</th>
                  <th>月度额度</th>
                  <th style={{ width: "140px" }}>当月已用</th>
                  <th style={{ textAlign: "right", width: "88px" }}>操作</th>
                </tr>
              </thead>
              <tbody id="members-tbody">
                {pagedMembers.map((member) => {
                  const rawName = (member.user.username || "").trim();
                  const email = (member.user.email || "").trim();
                  // 用户名是邮箱时取 @ 前作为显示名,完整邮箱作副行,避免名字与邮箱重复显示
                  const displayName = rawName && !rawName.includes("@") ? rawName : (email ? email.split("@")[0] : (rawName || "成员"));
                  const showEmail = !!email && email.toLowerCase() !== displayName.toLowerCase();
                  const role = roleUi(member.role);
                  const monthly = Number(member.monthly_credit_limit || 0);
                  const memberUsed = Number(member.month_charged || 0);
                  // 月度不限时按团队月限额/余额作分母给参考进度;有消费即显可见细条,避免「用了钱进度条却空白」
                  const quotaDenom = monthly > 0 ? monthly : limit;
                  const memberPct = quotaDenom > 0 ? Math.min(100, (memberUsed / quotaDenom) * 100) : 0;
                  const barWidth = memberUsed > 0 ? Math.max(memberPct, 3) : 0;
                  const barClass = memberPct >= 80 ? "warn" : "ok";
                  const isOwner = member.role === "owner";
                  return (
                    <tr key={member.id} data-id={member.id}>
                      <td><span className="member-cell"><span className="av">{displayName.slice(0, 1).toUpperCase()}</span><span className="member-meta"><span className="nm">{displayName}</span>{showEmail && <span className="em">{email}</span>}</span></span></td>
                      <td><span className={`role-pill role-${role.key}`}><span className="dot"></span>{role.label}</span></td>
                      <td><span className="quota-cell"><span className="v">不限</span></span></td>
                      <td><span className="quota-cell"><span className="v">{monthly > 0 ? money(monthly) : "不限"}</span></span></td>
                      <td><div className="quota-cell"><span className="v">{money(memberUsed)}</span> <span className="lbl">/ {monthly > 0 ? `${memberPct.toFixed(0)}%` : "不限"}</span></div><div className="used-bar"><span className={barClass} style={{ width: `${barWidth}%` }}></span></div></td>
                      <td><div className="acts">{isOwner
                        ? <span style={{ fontFamily: "var(--font-mono)", fontSize: "12px", color: "var(--black-alpha-32)", alignSelf: "center" }}>不可编辑</span>
                        : <>
                            <button className="icon-btn-sm" type="button" title="编辑" onClick={() => openEdit(member)}><svg viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="1.6" strokeLinecap="round" strokeLinejoin="round"><path d="M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7" /><path d="M18.5 2.5a2.12 2.12 0 0 1 3 3L12 15l-4 1 1-4z" /></svg></button>
                            <button className="icon-btn-sm" type="button" title="重置密码" onClick={() => { setResetTarget(member); setResetPwd(""); }}><svg viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="1.6" strokeLinecap="round" strokeLinejoin="round"><rect x="3" y="11" width="18" height="11" rx="2" /><path d="M7 11V7a5 5 0 0 1 10 0v4" /></svg></button>
                            <button className="icon-btn-sm danger" type="button" title="移出" onClick={() => setRemoveTarget(member)}><svg viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="1.6" strokeLinecap="round" strokeLinejoin="round"><path d="M3 6h18M19 6v14a2 2 0 0 1-2 2H7a2 2 0 0 1-2-2V6m3 0V4a2 2 0 0 1 2-2h4a2 2 0 0 1 2 2v2" /></svg></button>
                          </>}</div></td>
                    </tr>
                  );
                })}
              </tbody>
            </table>
            </div>
            <Pager page={memberCurPage} total={list.length} pageSize={MEMBERS_PER_PAGE} onChange={setMemberPage} />
          </div>
        </div>

        {/* 右:权限矩阵 */}
        <div>
          <div className="pane">
            <h3>角色权限</h3>
            <div style={{ fontSize: "12px", color: "var(--black-alpha-48)", marginTop: "-10px", marginBottom: "12px", fontFamily: "var(--font-mono)", letterSpacing: ".02em" }}>// PRD §10.2 权限矩阵节选</div>
            <table className="perm-table">
              <thead>
                <tr><th>能力</th><th>超管</th><th>团管</th><th>成员</th></tr>
              </thead>
              <tbody>
                {PERM_ROWS.map((row) => (
                  <tr key={row.cap} style={row.last ? { borderBottom: 0 } : undefined}>
                    <td>{row.cap}</td>
                    {row.cells.map((cell, index) => (
                      <td key={index} className={cell === "✓" ? "yes" : "no"}>{cell}</td>
                    ))}
                  </tr>
                ))}
              </tbody>
            </table>
          </div>
        </div>
      </div>

      {/* 设置月限额(团队级)· 注:后端暂无团队级限额端点,真实限额请在「编辑成员」逐人设置 */}
      <TeamModal open={modal === "limit"} title="设置月限额" subtitle="// 团队级限额暂存本地 · 成员限额请在编辑成员中设置" icon={<CircleDollarSign size={16} />} close={() => setModal("")}><div className="field"><label className="field-label">月限额 ¥</label><input className="input" defaultValue="3000" /></div></TeamModal>

      {/* 创建账户 */}
      <TeamModal
        open={modal === "invite"}
        title="创建账户"
        subtitle="// 直接生成账号 · 分享给成员登录"
        icon={<UserPlus size={16} />}
        close={() => setModal("")}
        footer={<button className="btn btn-primary" type="button" onClick={submitCreate}>创建账户</button>}
      >
        <div className="field"><label className="field-label">用户名</label><input className="input" value={cuUser} onChange={(e) => setCuUser(e.target.value)} placeholder="zhang.yunying" /></div>
        <div className="field"><label className="field-label">登录密码</label><input className="input mono" value={cuPass} onChange={(e) => setCuPass(e.target.value)} placeholder="至少 8 位" /></div>
        <div className="field"><label className="field-label">姓名(可选)</label><input className="input" value={cuName} onChange={(e) => setCuName(e.target.value)} placeholder="张运营" /></div>
        <div className="field"><label className="field-label">角色</label>
          <select className="input" value={cuRole} onChange={(e) => setCuRole(e.target.value)}>
            <option value="admin">团管</option>
            <option value="member">成员</option>
            <option value="viewer">访客</option>
          </select>
        </div>
        <div className="field"><label className="field-label">月度额度 ¥(0 = 不限)</label><input className="input" type="number" value={cuMonthly} onChange={(e) => setCuMonthly(e.target.value)} placeholder="0" /></div>
      </TeamModal>

      {/* 团队充值 */}
      <TeamModal
        open={modal === "recharge"}
        title="团队充值"
        subtitle="// 充值后立即到账 · 仅超管可操作"
        icon={<CircleDollarSign size={16} />}
        close={() => setModal("")}
        footer={<button className="btn btn-primary" type="button" onClick={submitRecharge}>确认充值</button>}
      >
        <div className="field"><label className="field-label">充值金额 ¥</label><input className="input" type="number" value={rechargeAmt} onChange={(e) => setRechargeAmt(e.target.value)} placeholder="最低 ¥50" /></div>
      </TeamModal>

      {/* 编辑成员 */}
      <TeamModal
        open={!!editTarget}
        title="编辑成员"
        subtitle={editTarget ? `// ${editTarget.user.username || editTarget.user.email}` : ""}
        icon={<UserPlus size={16} />}
        close={() => setEditTarget(null)}
        footer={<button className="btn btn-primary" type="button" onClick={submitEdit}>保存</button>}
      >
        <div className="field"><label className="field-label">角色</label>
          <select className="input" value={edRole} onChange={(e) => setEdRole(e.target.value)}>
            <option value="admin">团管</option>
            <option value="member">成员</option>
            <option value="viewer">访客</option>
          </select>
        </div>
        <div className="field"><label className="field-label">月度额度 ¥(0 = 不限)</label><input className="input" type="number" value={edMonthly} onChange={(e) => setEdMonthly(e.target.value)} placeholder="0" /></div>
      </TeamModal>

      {/* 重置密码 */}
      <TeamModal
        open={!!resetTarget}
        title="重置密码"
        subtitle={resetTarget ? `// ${resetTarget.user.username || resetTarget.user.email}` : ""}
        icon={<KeyRound size={16} />}
        close={() => setResetTarget(null)}
        footer={<button className="btn btn-primary" type="button" onClick={submitReset}>重置密码</button>}
      >
        <div className="field"><label className="field-label">新密码(至少 8 位)</label><input className="input mono" value={resetPwd} onChange={(e) => setResetPwd(e.target.value)} placeholder="新密码" /></div>
      </TeamModal>

      {/* 移除成员确认 */}
      <ConfirmModal
        open={!!removeTarget}
        title="移除成员"
        detail={removeTarget ? `确认将「${removeTarget.user.username || removeTarget.user.email}」移出团队?移除后该成员将失去登录与访问权限。` : ""}
        confirmText="移除"
        onCancel={() => setRemoveTarget(null)}
        onConfirm={submitRemove}
      />
    </section>
  );
}