import { Plus } from 'lucide-react';
import { useOverlayRouter } from '@/lib/useOverlayRouter';
import { showToast } from '@/lib/notify';
import { confirm } from '@/lib/confirm';
import { PageContainer } from '@/components/layout/PageContainer';
import { PageToolbar, SearchInput } from '@/components/layout/PageToolbar';
import { Button } from '@/components/ui/button';
import { useServerList } from '@/lib/useServerList';
import { useMembers } from '@/features/members/hooks/useMembers';
import { MemberTable } from '@/features/members/components/MemberTable';
import { MemberFormSheet } from '@/features/members/components/MemberFormSheet';
import type { Member } from '@/features/members/types';
import type { ListCompanyUsersParams } from '@/features/members/api';

export default function MembersPage() {
  const list = useServerList({ pageSize: 10 });
  const params: ListCompanyUsersParams = {
    search: list.debouncedSearch || undefined,
    page: list.page,
    size: list.pageSize,
  };

  const { members, total, createMember, updateMember, deleteMember } = useMembers(params);
  const totalPages = list.totalPages(total);

  const overlay = useOverlayRouter(['new', 'detail']);
  const editId = overlay.get('detail');
  const editing = editId ? members.find((m) => m.user_id === editId) ?? null : null;
  const formMode: 'create' | 'edit' = editId ? 'edit' : 'create';
  const isFormOpen = overlay.has('new') || !!editing;

  const openCreate = () => overlay.open('new');
  const openEdit = (member: Member) => overlay.open('detail', member.user_id);

  const handleDelete = async (userId: string, label: string) => {
    if (
      await confirm({
        title: '계정 삭제',
        description: `[${label}] 계정을 삭제하시겠습니까?`,
        confirmText: '삭제',
        destructive: true,
      })
    ) {
      try {
        await deleteMember(userId);
        showToast('계정이 삭제되었습니다.', 'info');
      } catch (err) {
        showToast(err instanceof Error ? err.message : '계정 삭제 실패', 'error');
      }
    }
  };

  return (
    <PageContainer>
      <PageToolbar
        actions={
          <Button onClick={openCreate}>
            <Plus />
            신규 계정 생성
          </Button>
        }
      >
        <SearchInput
          id="member-search"
          value={list.search}
          onChange={(e) => list.setSearch(e.target.value)}
          onKeyDown={(e) => e.key === 'Enter' && list.submitSearch()}
          placeholder="로그인 ID, 이름 또는 이메일로 검색..."
        />
      </PageToolbar>

      <MemberTable
        data={members}
        onRowClick={openEdit}
        page={list.page}
        totalPages={totalPages}
        totalCount={total}
        pageSize={list.pageSize}
        onPageChange={list.setPage}
      />

      {isFormOpen && (
        <MemberFormSheet
          key={`${formMode}-${editing?.user_id ?? 'new'}`}
          open
          mode={formMode}
          member={editing}
          onCreate={createMember}
          onUpdate={updateMember}
          onDelete={handleDelete}
          onClose={overlay.close}
        />
      )}
    </PageContainer>
  );
}