import React, { useState, useEffect } from 'react';
import { X, Send, Mail, Building2, ChevronDown, ChevronUp } from 'lucide-react';
import { useCreateTenantInvitation } from '../../../hooks/usePlatform';
import { useSubscriptionPlans } from '../../../hooks/usePlatformSettings';

interface TenantInviteModalProps {
  isOpen: boolean;
  onClose: () => void;
}

// Default tier settings - used when no subscription plans are loaded
const TIER_DEFAULTS: Record<string, {
  max_users: number;
  max_resources: number;
  can_manage_oauth_credentials: boolean;
  can_accept_payments: boolean;
  can_use_custom_domain: boolean;
  can_white_label: boolean;
  can_api_access: boolean;
  can_add_video_conferencing: boolean;
  can_use_sms_reminders: boolean;
  can_use_masked_phone_numbers: boolean;
  can_use_plugins: boolean;
  can_use_tasks: boolean;
  can_create_plugins: boolean;
  can_use_webhooks: boolean;
  can_use_calendar_sync: boolean;
  can_export_data: boolean;
  can_require_2fa: boolean;
}> = {
  FREE: {
    max_users: 2,
    max_resources: 5,
    can_manage_oauth_credentials: false,
    can_accept_payments: false,
    can_use_custom_domain: false,
    can_white_label: false,
    can_api_access: false,
    can_add_video_conferencing: false,
    can_use_sms_reminders: false,
    can_use_masked_phone_numbers: false,
    can_use_plugins: true,
    can_use_tasks: true,
    can_create_plugins: false,
    can_use_webhooks: false,
    can_use_calendar_sync: false,
    can_export_data: false,
    can_require_2fa: false,
  },
  STARTER: {
    max_users: 5,
    max_resources: 15,
    can_manage_oauth_credentials: false,
    can_accept_payments: true,
    can_use_custom_domain: false,
    can_white_label: false,
    can_api_access: false,
    can_add_video_conferencing: false,
    can_use_sms_reminders: false,
    can_use_masked_phone_numbers: false,
    can_use_plugins: true,
    can_use_tasks: true,
    can_create_plugins: false,
    can_use_webhooks: false,
    can_use_calendar_sync: false,
    can_export_data: false,
    can_require_2fa: false,
  },
  PROFESSIONAL: {
    max_users: 15,
    max_resources: 50,
    can_manage_oauth_credentials: false,
    can_accept_payments: true,
    can_use_custom_domain: true,
    can_white_label: false,
    can_api_access: true,
    can_add_video_conferencing: true,
    can_use_sms_reminders: true,
    can_use_masked_phone_numbers: false,
    can_use_plugins: true,
    can_use_tasks: true,
    can_create_plugins: false,
    can_use_webhooks: true,
    can_use_calendar_sync: true,
    can_export_data: true,
    can_require_2fa: false,
  },
  ENTERPRISE: {
    max_users: -1, // unlimited
    max_resources: -1, // unlimited
    can_manage_oauth_credentials: true,
    can_accept_payments: true,
    can_use_custom_domain: true,
    can_white_label: true,
    can_api_access: true,
    can_add_video_conferencing: true,
    can_use_sms_reminders: true,
    can_use_masked_phone_numbers: true,
    can_use_plugins: true,
    can_use_tasks: true,
    can_create_plugins: true,
    can_use_webhooks: true,
    can_use_calendar_sync: true,
    can_export_data: true,
    can_require_2fa: true,
  },
};

const TenantInviteModal: React.FC<TenantInviteModalProps> = ({ isOpen, onClose }) => {
  const createInvitationMutation = useCreateTenantInvitation();
  const { data: subscriptionPlans } = useSubscriptionPlans();

  const [inviteForm, setInviteForm] = useState({
    email: '',
    suggested_business_name: '',
    subscription_tier: 'PROFESSIONAL' as 'FREE' | 'STARTER' | 'PROFESSIONAL' | 'ENTERPRISE',
    use_custom_limits: false,
    // Limits
    max_users: 15,
    max_resources: 50,
    // Permissions
    can_manage_oauth_credentials: false,
    can_accept_payments: true,
    can_use_custom_domain: true,
    can_white_label: false,
    can_api_access: true,
    can_add_video_conferencing: true,
    can_use_sms_reminders: true,
    can_use_masked_phone_numbers: false,
    can_use_plugins: true,
    can_use_tasks: true,
    can_create_plugins: false,
    can_use_webhooks: true,
    can_use_calendar_sync: true,
    can_export_data: true,
    can_require_2fa: false,
    personal_message: '',
  });
  const [inviteError, setInviteError] = useState<string | null>(null);
  const [inviteSuccess, setInviteSuccess] = useState(false);

  // Get tier defaults from subscription plans or fallback to static defaults
  const getTierDefaults = (tier: string) => {
    // Try to find matching subscription plan
    if (subscriptionPlans) {
      const tierNameMap: Record<string, string> = {
        'FREE': 'Free',
        'STARTER': 'Starter',
        'PROFESSIONAL': 'Professional',
        'ENTERPRISE': 'Enterprise',
      };
      const plan = subscriptionPlans.find(p =>
        p.business_tier === tierNameMap[tier] || p.business_tier === tier
      );
      if (plan) {
        const staticDefaults = TIER_DEFAULTS[tier] || TIER_DEFAULTS.FREE;
        return {
          max_users: plan.limits?.max_users ?? staticDefaults.max_users,
          max_resources: plan.limits?.max_resources ?? staticDefaults.max_resources,
          can_manage_oauth_credentials: plan.permissions?.can_manage_oauth_credentials ?? staticDefaults.can_manage_oauth_credentials,
          can_accept_payments: plan.permissions?.can_accept_payments ?? staticDefaults.can_accept_payments,
          can_use_custom_domain: plan.permissions?.can_use_custom_domain ?? staticDefaults.can_use_custom_domain,
          can_white_label: plan.permissions?.can_white_label ?? staticDefaults.can_white_label,
          can_api_access: plan.permissions?.can_api_access ?? staticDefaults.can_api_access,
          can_add_video_conferencing: plan.permissions?.video_conferencing ?? staticDefaults.can_add_video_conferencing,
          can_use_sms_reminders: plan.permissions?.sms_reminders ?? staticDefaults.can_use_sms_reminders,
          can_use_masked_phone_numbers: plan.permissions?.masked_calling ?? staticDefaults.can_use_masked_phone_numbers,
          can_use_plugins: plan.permissions?.plugins ?? staticDefaults.can_use_plugins,
          can_use_tasks: plan.permissions?.tasks ?? staticDefaults.can_use_tasks,
          can_create_plugins: plan.permissions?.can_create_plugins ?? staticDefaults.can_create_plugins,
          can_use_webhooks: plan.permissions?.webhooks ?? staticDefaults.can_use_webhooks,
          can_use_calendar_sync: plan.permissions?.calendar_sync ?? staticDefaults.can_use_calendar_sync,
          can_export_data: plan.permissions?.export_data ?? staticDefaults.can_export_data,
          can_require_2fa: plan.permissions?.two_factor_auth ?? staticDefaults.can_require_2fa,
        };
      }
    }
    // Fallback to static defaults
    return TIER_DEFAULTS[tier] || TIER_DEFAULTS.FREE;
  };

  // Handle subscription tier change - auto-update limits and permissions
  const handleTierChange = (newTier: string) => {
    const defaults = getTierDefaults(newTier);
    setInviteForm(prev => ({
      ...prev,
      subscription_tier: newTier as any,
      ...defaults,
    }));
  };

  // Initialize defaults when modal opens or subscription plans load
  useEffect(() => {
    if (isOpen) {
      const defaults = getTierDefaults(inviteForm.subscription_tier);
      setInviteForm(prev => ({
        ...prev,
        ...defaults,
      }));
    }
  }, [isOpen, subscriptionPlans]);

  const resetForm = () => {
    const defaults = getTierDefaults('PROFESSIONAL');
    setInviteForm({
      email: '',
      suggested_business_name: '',
      subscription_tier: 'PROFESSIONAL',
      use_custom_limits: false,
      ...defaults,
      personal_message: '',
    });
    setInviteError(null);
    setInviteSuccess(false);
  };

  const handleClose = () => {
    resetForm();
    onClose();
  };

  const handleInviteSend = () => {
    setInviteError(null);
    setInviteSuccess(false);

    // Validation
    if (!inviteForm.email.trim()) {
      setInviteError('Email address is required');
      return;
    }
    if (!/^[^\s@]+@[^\s@]+\.[^\s@]+$/.test(inviteForm.email)) {
      setInviteError('Please enter a valid email address');
      return;
    }

    // Build invitation data
    const data: any = {
      email: inviteForm.email,
      subscription_tier: inviteForm.subscription_tier,
    };

    if (inviteForm.suggested_business_name.trim()) {
      data.suggested_business_name = inviteForm.suggested_business_name.trim();
    }

    // If using custom limits, include all the overrides
    if (inviteForm.use_custom_limits) {
      data.custom_max_users = inviteForm.max_users;
      data.custom_max_resources = inviteForm.max_resources;
      data.permissions = {
        can_manage_oauth_credentials: inviteForm.can_manage_oauth_credentials,
        can_accept_payments: inviteForm.can_accept_payments,
        can_use_custom_domain: inviteForm.can_use_custom_domain,
        can_white_label: inviteForm.can_white_label,
        can_api_access: inviteForm.can_api_access,
      };
      data.limits = {
        can_add_video_conferencing: inviteForm.can_add_video_conferencing,
        can_use_sms_reminders: inviteForm.can_use_sms_reminders,
        can_use_masked_phone_numbers: inviteForm.can_use_masked_phone_numbers,
        can_use_plugins: inviteForm.can_use_plugins,
        can_use_tasks: inviteForm.can_use_tasks,
        can_create_plugins: inviteForm.can_create_plugins,
        can_use_webhooks: inviteForm.can_use_webhooks,
        can_use_calendar_sync: inviteForm.can_use_calendar_sync,
        can_export_data: inviteForm.can_export_data,
        can_require_2fa: inviteForm.can_require_2fa,
      };
    }

    if (inviteForm.personal_message.trim()) {
      data.personal_message = inviteForm.personal_message.trim();
    }

    createInvitationMutation.mutate(data, {
      onSuccess: () => {
        setInviteSuccess(true);
        setTimeout(() => {
          handleClose();
        }, 2000);
      },
      onError: (error: any) => {
        setInviteError(error.response?.data?.detail || error.message || 'Failed to send invitation');
      },
    });
  };

  if (!isOpen) return null;

  return (
    <div className="fixed inset-0 bg-black/50 flex items-center justify-center z-50">
      <div className="bg-white dark:bg-gray-800 rounded-xl shadow-xl w-full max-w-2xl mx-4 max-h-[90vh] overflow-y-auto">
        {/* Modal Header */}
        <div className="flex items-center justify-between p-6 border-b border-gray-200 dark:border-gray-700">
          <div className="flex items-center gap-3">
            <div className="p-2 bg-indigo-100 dark:bg-indigo-900/30 rounded-lg">
              <Send size={24} className="text-indigo-600 dark:text-indigo-400" />
            </div>
            <div>
              <h3 className="text-lg font-semibold text-gray-900 dark:text-white">Invite New Tenant</h3>
              <p className="text-sm text-gray-500 dark:text-gray-400">Send an invitation to create a new business</p>
            </div>
          </div>
          <button
            onClick={handleClose}
            className="p-2 hover:bg-gray-100 dark:hover:bg-gray-700 rounded-lg transition-colors"
          >
            <X size={20} className="text-gray-500 dark:text-gray-400" />
          </button>
        </div>

        {/* Modal Body */}
        <div className="p-6 space-y-6">
          {inviteError && (
            <div className="p-4 bg-red-50 dark:bg-red-900/20 border border-red-200 dark:border-red-800 rounded-lg">
              <p className="text-sm text-red-600 dark:text-red-400">{inviteError}</p>
            </div>
          )}

          {inviteSuccess && (
            <div className="p-4 bg-green-50 dark:bg-green-900/20 border border-green-200 dark:border-green-800 rounded-lg">
              <p className="text-sm text-green-600 dark:text-green-400">Invitation sent successfully!</p>
            </div>
          )}

          {/* Email */}
          <div>
            <label className="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-2">
              Email Address *
            </label>
            <div className="relative">
              <Mail size={18} className="absolute left-3 top-1/2 -translate-y-1/2 text-gray-400" />
              <input
                type="email"
                value={inviteForm.email}
                onChange={(e) => setInviteForm({ ...inviteForm, email: e.target.value })}
                className="w-full pl-10 pr-4 py-2 border border-gray-300 dark:border-gray-600 rounded-lg bg-white dark:bg-gray-700 text-gray-900 dark:text-white"
                placeholder="owner@business.com"
              />
            </div>
          </div>

          {/* Suggested Business Name */}
          <div>
            <label className="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-2">
              Suggested Business Name (Optional)
            </label>
            <div className="relative">
              <Building2 size={18} className="absolute left-3 top-1/2 -translate-y-1/2 text-gray-400" />
              <input
                type="text"
                value={inviteForm.suggested_business_name}
                onChange={(e) => setInviteForm({ ...inviteForm, suggested_business_name: e.target.value })}
                className="w-full pl-10 pr-4 py-2 border border-gray-300 dark:border-gray-600 rounded-lg bg-white dark:bg-gray-700 text-gray-900 dark:text-white"
                placeholder="Owner can change this during onboarding"
              />
            </div>
          </div>

          {/* Subscription Tier */}
          <div>
            <label className="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-2">
              Subscription Tier
            </label>
            <select
              value={inviteForm.subscription_tier}
              onChange={(e) => handleTierChange(e.target.value)}
              className="w-full px-4 py-2 border border-gray-300 dark:border-gray-600 rounded-lg bg-white dark:bg-gray-700 text-gray-900 dark:text-white"
            >
              <option value="FREE">Free Trial</option>
              <option value="STARTER">Starter</option>
              <option value="PROFESSIONAL">Professional</option>
              <option value="ENTERPRISE">Enterprise</option>
            </select>
            <p className="mt-1 text-xs text-gray-500 dark:text-gray-400">
              Tier defaults are loaded from platform subscription settings
            </p>
          </div>

          {/* Override Tier Limits Toggle */}
          <div className="border-t border-gray-200 dark:border-gray-700 pt-4">
            <button
              type="button"
              onClick={() => setInviteForm({ ...inviteForm, use_custom_limits: !inviteForm.use_custom_limits })}
              className="flex items-center justify-between w-full p-3 bg-gray-50 dark:bg-gray-700/50 rounded-lg hover:bg-gray-100 dark:hover:bg-gray-700 transition-colors"
            >
              <div className="flex items-center gap-3">
                <input
                  type="checkbox"
                  checked={inviteForm.use_custom_limits}
                  onChange={(e) => setInviteForm({ ...inviteForm, use_custom_limits: e.target.checked })}
                  className="rounded border-gray-300 dark:border-gray-600 text-indigo-600 focus:ring-indigo-500"
                  onClick={(e) => e.stopPropagation()}
                />
                <div className="text-left">
                  <span className="text-sm font-medium text-gray-700 dark:text-gray-300">
                    Override Tier Limits
                  </span>
                  <p className="text-xs text-gray-500 dark:text-gray-400">
                    Customize limits and permissions for this tenant
                  </p>
                </div>
              </div>
              {inviteForm.use_custom_limits ? (
                <ChevronUp size={20} className="text-gray-400" />
              ) : (
                <ChevronDown size={20} className="text-gray-400" />
              )}
            </button>

            {/* Sliding Custom Limits Panel */}
            <div
              className={`overflow-hidden transition-all duration-300 ease-in-out ${
                inviteForm.use_custom_limits ? 'max-h-[2000px] opacity-100 mt-4' : 'max-h-0 opacity-0'
              }`}
            >
              <div className="space-y-4 p-4 bg-gray-50 dark:bg-gray-700/30 rounded-lg border border-gray-200 dark:border-gray-700">
                {/* Limits Configuration */}
                <div>
                  <h4 className="text-sm font-medium text-gray-900 dark:text-white mb-3">
                    Limits Configuration
                  </h4>
                  <p className="text-xs text-gray-500 dark:text-gray-400 mb-3">
                    Use -1 for unlimited
                  </p>
                  <div className="grid grid-cols-2 gap-4">
                    <div>
                      <label className="block text-xs text-gray-600 dark:text-gray-400 mb-1">Max Users</label>
                      <input
                        type="number"
                        min="-1"
                        value={inviteForm.max_users}
                        onChange={(e) => setInviteForm({ ...inviteForm, max_users: parseInt(e.target.value) || 0 })}
                        className="w-full px-3 py-2 border border-gray-300 dark:border-gray-600 rounded-lg bg-white dark:bg-gray-700 text-gray-900 dark:text-white"
                      />
                    </div>
                    <div>
                      <label className="block text-xs text-gray-600 dark:text-gray-400 mb-1">Max Resources</label>
                      <input
                        type="number"
                        min="-1"
                        value={inviteForm.max_resources}
                        onChange={(e) => setInviteForm({ ...inviteForm, max_resources: parseInt(e.target.value) || 0 })}
                        className="w-full px-3 py-2 border border-gray-300 dark:border-gray-600 rounded-lg bg-white dark:bg-gray-700 text-gray-900 dark:text-white"
                      />
                    </div>
                  </div>
                </div>

                {/* Payments & Revenue */}
                <div className="pt-3 border-t border-gray-200 dark:border-gray-600">
                  <h4 className="text-xs font-medium text-gray-500 dark:text-gray-400 uppercase tracking-wider mb-2">
                    Payments & Revenue
                  </h4>
                  <div className="grid grid-cols-2 gap-2">
                    <label className="flex items-center gap-2 p-2 border border-gray-200 dark:border-gray-600 rounded-lg hover:bg-white dark:hover:bg-gray-700 cursor-pointer">
                      <input
                        type="checkbox"
                        checked={inviteForm.can_accept_payments}
                        onChange={(e) => setInviteForm({ ...inviteForm, can_accept_payments: e.target.checked })}
                        className="rounded border-gray-300 text-indigo-600 focus:ring-indigo-500"
                      />
                      <span className="text-sm text-gray-700 dark:text-gray-300">Online Payments</span>
                    </label>
                  </div>
                </div>

                {/* Communication */}
                <div className="pt-3 border-t border-gray-200 dark:border-gray-600">
                  <h4 className="text-xs font-medium text-gray-500 dark:text-gray-400 uppercase tracking-wider mb-2">
                    Communication
                  </h4>
                  <div className="grid grid-cols-2 gap-2">
                    <label className="flex items-center gap-2 p-2 border border-gray-200 dark:border-gray-600 rounded-lg hover:bg-white dark:hover:bg-gray-700 cursor-pointer">
                      <input
                        type="checkbox"
                        checked={inviteForm.can_use_sms_reminders}
                        onChange={(e) => setInviteForm({ ...inviteForm, can_use_sms_reminders: e.target.checked })}
                        className="rounded border-gray-300 text-indigo-600 focus:ring-indigo-500"
                      />
                      <span className="text-sm text-gray-700 dark:text-gray-300">SMS Reminders</span>
                    </label>
                    <label className="flex items-center gap-2 p-2 border border-gray-200 dark:border-gray-600 rounded-lg hover:bg-white dark:hover:bg-gray-700 cursor-pointer">
                      <input
                        type="checkbox"
                        checked={inviteForm.can_use_masked_phone_numbers}
                        onChange={(e) => setInviteForm({ ...inviteForm, can_use_masked_phone_numbers: e.target.checked })}
                        className="rounded border-gray-300 text-indigo-600 focus:ring-indigo-500"
                      />
                      <span className="text-sm text-gray-700 dark:text-gray-300">Masked Calling</span>
                    </label>
                  </div>
                </div>

                {/* Customization */}
                <div className="pt-3 border-t border-gray-200 dark:border-gray-600">
                  <h4 className="text-xs font-medium text-gray-500 dark:text-gray-400 uppercase tracking-wider mb-2">
                    Customization
                  </h4>
                  <div className="grid grid-cols-2 gap-2">
                    <label className="flex items-center gap-2 p-2 border border-gray-200 dark:border-gray-600 rounded-lg hover:bg-white dark:hover:bg-gray-700 cursor-pointer">
                      <input
                        type="checkbox"
                        checked={inviteForm.can_use_custom_domain}
                        onChange={(e) => setInviteForm({ ...inviteForm, can_use_custom_domain: e.target.checked })}
                        className="rounded border-gray-300 text-indigo-600 focus:ring-indigo-500"
                      />
                      <span className="text-sm text-gray-700 dark:text-gray-300">Custom Domains</span>
                    </label>
                    <label className="flex items-center gap-2 p-2 border border-gray-200 dark:border-gray-600 rounded-lg hover:bg-white dark:hover:bg-gray-700 cursor-pointer">
                      <input
                        type="checkbox"
                        checked={inviteForm.can_white_label}
                        onChange={(e) => setInviteForm({ ...inviteForm, can_white_label: e.target.checked })}
                        className="rounded border-gray-300 text-indigo-600 focus:ring-indigo-500"
                      />
                      <span className="text-sm text-gray-700 dark:text-gray-300">White Labelling</span>
                    </label>
                  </div>
                </div>

                {/* Plugins & Automation */}
                <div className="pt-3 border-t border-gray-200 dark:border-gray-600">
                  <h4 className="text-xs font-medium text-gray-500 dark:text-gray-400 uppercase tracking-wider mb-2">
                    Plugins & Automation
                  </h4>
                  <div className="grid grid-cols-2 gap-2">
                    <label className="flex items-center gap-2 p-2 border border-gray-200 dark:border-gray-600 rounded-lg hover:bg-white dark:hover:bg-gray-700 cursor-pointer">
                      <input
                        type="checkbox"
                        checked={inviteForm.can_use_plugins}
                        onChange={(e) => {
                          const checked = e.target.checked;
                          setInviteForm(prev => ({
                            ...prev,
                            can_use_plugins: checked,
                            ...(checked ? {} : { can_use_tasks: false, can_create_plugins: false })
                          }));
                        }}
                        className="rounded border-gray-300 text-indigo-600 focus:ring-indigo-500"
                      />
                      <span className="text-sm text-gray-700 dark:text-gray-300">Use Plugins</span>
                    </label>
                    <label className={`flex items-center gap-2 p-2 border border-gray-200 dark:border-gray-600 rounded-lg ${inviteForm.can_use_plugins ? 'hover:bg-white dark:hover:bg-gray-700 cursor-pointer' : 'opacity-50 cursor-not-allowed'}`}>
                      <input
                        type="checkbox"
                        checked={inviteForm.can_use_tasks}
                        onChange={(e) => setInviteForm({ ...inviteForm, can_use_tasks: e.target.checked })}
                        disabled={!inviteForm.can_use_plugins}
                        className="rounded border-gray-300 text-indigo-600 focus:ring-indigo-500 disabled:opacity-50"
                      />
                      <span className="text-sm text-gray-700 dark:text-gray-300">Scheduled Tasks</span>
                    </label>
                    <label className={`flex items-center gap-2 p-2 border border-gray-200 dark:border-gray-600 rounded-lg ${inviteForm.can_use_plugins ? 'hover:bg-white dark:hover:bg-gray-700 cursor-pointer' : 'opacity-50 cursor-not-allowed'}`}>
                      <input
                        type="checkbox"
                        checked={inviteForm.can_create_plugins}
                        onChange={(e) => setInviteForm({ ...inviteForm, can_create_plugins: e.target.checked })}
                        disabled={!inviteForm.can_use_plugins}
                        className="rounded border-gray-300 text-indigo-600 focus:ring-indigo-500 disabled:opacity-50"
                      />
                      <span className="text-sm text-gray-700 dark:text-gray-300">Create Plugins</span>
                    </label>
                  </div>
                </div>

                {/* Advanced Features */}
                <div className="pt-3 border-t border-gray-200 dark:border-gray-600">
                  <h4 className="text-xs font-medium text-gray-500 dark:text-gray-400 uppercase tracking-wider mb-2">
                    Advanced Features
                  </h4>
                  <div className="grid grid-cols-2 gap-2">
                    <label className="flex items-center gap-2 p-2 border border-gray-200 dark:border-gray-600 rounded-lg hover:bg-white dark:hover:bg-gray-700 cursor-pointer">
                      <input
                        type="checkbox"
                        checked={inviteForm.can_api_access}
                        onChange={(e) => setInviteForm({ ...inviteForm, can_api_access: e.target.checked })}
                        className="rounded border-gray-300 text-indigo-600 focus:ring-indigo-500"
                      />
                      <span className="text-sm text-gray-700 dark:text-gray-300">API Access</span>
                    </label>
                    <label className="flex items-center gap-2 p-2 border border-gray-200 dark:border-gray-600 rounded-lg hover:bg-white dark:hover:bg-gray-700 cursor-pointer">
                      <input
                        type="checkbox"
                        checked={inviteForm.can_use_webhooks}
                        onChange={(e) => setInviteForm({ ...inviteForm, can_use_webhooks: e.target.checked })}
                        className="rounded border-gray-300 text-indigo-600 focus:ring-indigo-500"
                      />
                      <span className="text-sm text-gray-700 dark:text-gray-300">Webhooks</span>
                    </label>
                    <label className="flex items-center gap-2 p-2 border border-gray-200 dark:border-gray-600 rounded-lg hover:bg-white dark:hover:bg-gray-700 cursor-pointer">
                      <input
                        type="checkbox"
                        checked={inviteForm.can_use_calendar_sync}
                        onChange={(e) => setInviteForm({ ...inviteForm, can_use_calendar_sync: e.target.checked })}
                        className="rounded border-gray-300 text-indigo-600 focus:ring-indigo-500"
                      />
                      <span className="text-sm text-gray-700 dark:text-gray-300">Calendar Sync</span>
                    </label>
                    <label className="flex items-center gap-2 p-2 border border-gray-200 dark:border-gray-600 rounded-lg hover:bg-white dark:hover:bg-gray-700 cursor-pointer">
                      <input
                        type="checkbox"
                        checked={inviteForm.can_export_data}
                        onChange={(e) => setInviteForm({ ...inviteForm, can_export_data: e.target.checked })}
                        className="rounded border-gray-300 text-indigo-600 focus:ring-indigo-500"
                      />
                      <span className="text-sm text-gray-700 dark:text-gray-300">Data Export</span>
                    </label>
                    <label className="flex items-center gap-2 p-2 border border-gray-200 dark:border-gray-600 rounded-lg hover:bg-white dark:hover:bg-gray-700 cursor-pointer">
                      <input
                        type="checkbox"
                        checked={inviteForm.can_add_video_conferencing}
                        onChange={(e) => setInviteForm({ ...inviteForm, can_add_video_conferencing: e.target.checked })}
                        className="rounded border-gray-300 text-indigo-600 focus:ring-indigo-500"
                      />
                      <span className="text-sm text-gray-700 dark:text-gray-300">Video Conferencing</span>
                    </label>
                  </div>
                </div>

                {/* Enterprise */}
                <div className="pt-3 border-t border-gray-200 dark:border-gray-600">
                  <h4 className="text-xs font-medium text-gray-500 dark:text-gray-400 uppercase tracking-wider mb-2">
                    Enterprise
                  </h4>
                  <div className="grid grid-cols-2 gap-2">
                    <label className="flex items-center gap-2 p-2 border border-gray-200 dark:border-gray-600 rounded-lg hover:bg-white dark:hover:bg-gray-700 cursor-pointer">
                      <input
                        type="checkbox"
                        checked={inviteForm.can_manage_oauth_credentials}
                        onChange={(e) => setInviteForm({ ...inviteForm, can_manage_oauth_credentials: e.target.checked })}
                        className="rounded border-gray-300 text-indigo-600 focus:ring-indigo-500"
                      />
                      <span className="text-sm text-gray-700 dark:text-gray-300">Manage OAuth</span>
                    </label>
                    <label className="flex items-center gap-2 p-2 border border-gray-200 dark:border-gray-600 rounded-lg hover:bg-white dark:hover:bg-gray-700 cursor-pointer">
                      <input
                        type="checkbox"
                        checked={inviteForm.can_require_2fa}
                        onChange={(e) => setInviteForm({ ...inviteForm, can_require_2fa: e.target.checked })}
                        className="rounded border-gray-300 text-indigo-600 focus:ring-indigo-500"
                      />
                      <span className="text-sm text-gray-700 dark:text-gray-300">Require 2FA</span>
                    </label>
                  </div>
                </div>
              </div>
            </div>
          </div>

          {/* Personal Message */}
          <div>
            <label className="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-2">
              Personal Message (Optional)
            </label>
            <textarea
              value={inviteForm.personal_message}
              onChange={(e) => setInviteForm({ ...inviteForm, personal_message: e.target.value })}
              rows={3}
              className="w-full px-4 py-2 border border-gray-300 dark:border-gray-600 rounded-lg bg-white dark:bg-gray-700 text-gray-900 dark:text-white"
              placeholder="Add a personal note to the invitation email..."
            />
          </div>
        </div>

        {/* Modal Footer */}
        <div className="flex items-center justify-end gap-3 p-6 border-t border-gray-200 dark:border-gray-700">
          <button
            onClick={handleClose}
            className="px-4 py-2 text-gray-700 dark:text-gray-300 hover:bg-gray-100 dark:hover:bg-gray-700 rounded-lg font-medium text-sm transition-colors"
          >
            Cancel
          </button>
          <button
            onClick={handleInviteSend}
            disabled={createInvitationMutation.isPending || inviteSuccess}
            className="flex items-center gap-2 px-4 py-2 bg-indigo-600 text-white rounded-lg hover:bg-indigo-700 font-medium text-sm transition-colors disabled:opacity-50 disabled:cursor-not-allowed"
          >
            <Send size={16} />
            {createInvitationMutation.isPending ? 'Sending...' : inviteSuccess ? 'Sent!' : 'Send Invitation'}
          </button>
        </div>
      </div>
    </div>
  );
};

export default TenantInviteModal;
