import React from 'react';
import { User, UserPlus, Shield, Edit2, Trash2, X } from 'lucide-react';
import { cn } from '@/lib/utils';

interface IdentityManagerProps {
  users: any[];
  onAddUser: () => void;
  onDeleteUser: (id: number, username: string) => void;
  editingUser: any | null;
  setEditingUser: (user: any | null) => void;
  editUserForm: any;
  setEditUserForm: (form: any) => void;
  onUpdateUserSubmit: () => void;
}

export default function IdentityManager({
  users,
  onAddUser,
  onDeleteUser,
  editingUser,
  setEditingUser,
  editUserForm,
  setEditUserForm,
  onUpdateUserSubmit
}: IdentityManagerProps) {
  return (
    <div className="level-1 p-4 md:p-6 flex flex-col transition-all group/identity h-full">
      <div className="flex items-center justify-between mb-3">
        <div className="flex items-center gap-3">
          <div className="w-10 h-10 bg-primary/10 flex items-center justify-center text-primary border border-primary/20">
            <User size={20} />
          </div>
          <h2 className="text-xl font-normal text-white tracking-tight">Identity Management</h2>
        </div>
        <button
          onClick={onAddUser}
          data-testid="add-user-button"
          className="btn-primary"
          aria-label="Add new user"
        >
          <UserPlus size={16} /> Add User
        </button>
      </div>

      <div className="flex-1 space-y-1 pr-2 -mr-2 overflow-y-auto max-h-[400px] custom-scrollbar">
        {users.map((user) => (
          <div key={user.id} className="flex items-center justify-between p-3 level-0 border border-border/40 hover:border-primary/30 transition-all group">
            <div className="flex items-center gap-3 min-w-0">
              <div className={cn(
                "w-9 h-9 flex items-center justify-center transition-colors shrink-0",
                user.role === 'admin' ? "bg-primary/10 text-primary border border-primary/20" : "bg-surface-bright text-muted border border-border"
              )}>
                {user.role === 'admin' ? <Shield size={16} /> : <User size={16} />}
              </div>
              <div className="min-w-0">
                <p className="card-title truncate">{user.username}</p>
                <p className="card-subtitle">{user.role}</p>
              </div>
            </div>
            <div className="flex items-center gap-1.5 ml-2">
              <button
                onClick={() => {
                  setEditingUser(user);
                  setEditUserForm({ username: user.username, password: '', role: user.role });
                }}
                className="p-2 text-secondary hover:text-primary hover:bg-primary/5 transition-all"
                aria-label={`Edit user ${user.username}`}
              >
                <Edit2 size={16} />
              </button>
              {user.username !== 'Admin' && (
                <button
                  onClick={() => onDeleteUser(user.id, user.username)}
                  data-testid="delete-user-button"
                  className="p-2 text-secondary hover:text-error hover:bg-error/5 transition-all"
                  aria-label={`Delete user ${user.username}`}
                >
                  <Trash2 size={16} />
                </button>
              )}
            </div>
          </div>
        ))}
      </div>

      {/* Edit User Modal */}
      {editingUser && (
        <div className="fixed inset-0 z-[100] flex items-center justify-center p-4 bg-background/80  animate-in fade-in duration-200">
          <div className="level-2 p-6 w-full max-w-md">
            <div className="flex justify-between items-center mb-3">
              <h3 className="text-xl font-normal text-white tracking-tight">Edit Identity</h3>
              <button
                onClick={() => setEditingUser(null)}
                className="p-2 text-muted hover:text-white transition-colors border border-border"
                aria-label="Close edit dialog"
              >
                <X size={20} />
              </button>
            </div>
            
            <div className="space-y-2">
              <div className="space-y-1">
                <label className="text-sm font-normal text-secondary tracking-tight ml-1">Username</label>
                <input
                  type="text"
                  value={editUserForm.username}
                  onChange={(e) => setEditUserForm({ ...editUserForm, username: e.target.value })}
                  className="input-field w-full text-sm font-mono"
                />
              </div>
              <div className="space-y-1">
                <label className="text-sm font-normal text-secondary tracking-tight ml-1">New Password (Leave Empty To Keep)</label>
                <input
                  type="password"
                  value={editUserForm.password}
                  onChange={(e) => setEditUserForm({ ...editUserForm, password: e.target.value })}
                  placeholder="********"
                  className="input-field w-full text-sm font-mono"
                />
              </div>
              <div className="space-y-1">
                <label className="text-sm font-normal text-secondary tracking-tight ml-1">Role</label>
                <select
                  value={editUserForm.role}
                  onChange={(e) => setEditUserForm({ ...editUserForm, role: e.target.value })}
                  className="input-field w-full text-sm appearance-none"
                >
                  <option value="user">Standard User</option>
                  <option value="admin">Administrator</option>
                </select>
              </div>

              <button
                onClick={onUpdateUserSubmit}
                className="btn-primary w-full py-2.5 mt-2"
              >
                Apply Changes
              </button>
            </div>
          </div>
        </div>
      )}
    </div>
  );
}