/*
Copyright (C) 2025 QuantumNous

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.

You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.

For commercial licensing, please contact support@quantumnous.com
*/

import React from 'react';
import { useTranslation } from 'react-i18next';
import {
  API,
  showError,
  showSuccess,
  getOAuthProviderIcon,
} from '../../../../helpers';
import {
  Modal,
  Spin,
  Typography,
  Card,
  Checkbox,
  Tag,
  Button,
} from '@douyinfe/semi-ui';
import {
  IconLink,
  IconMail,
  IconDelete,
  IconGithubLogo,
} from '@douyinfe/semi-icons';
import { SiDiscord, SiTelegram, SiWechat, SiLinux } from 'react-icons/si';

const { Text } = Typography;

const UserBindingManagementModal = ({
  visible,
  onCancel,
  userId,
  isMobile,
  formApiRef,
}) => {
  const { t } = useTranslation();
  const [bindingLoading, setBindingLoading] = React.useState(false);
  const [showUnboundOnly, setShowUnboundOnly] = React.useState(false);
  const [statusInfo, setStatusInfo] = React.useState({});
  const [customOAuthBindings, setCustomOAuthBindings] = React.useState([]);
  const [bindingActionLoading, setBindingActionLoading] = React.useState({});

  const loadBindingData = React.useCallback(async () => {
    if (!userId) return;

    setBindingLoading(true);
    try {
      const [statusRes, customBindingRes] = await Promise.all([
        API.get('/api/status'),
        API.get(`/api/user/${userId}/oauth/bindings`),
      ]);

      if (statusRes.data?.success) {
        setStatusInfo(statusRes.data.data || {});
      } else {
        showError(statusRes.data?.message || t('操作失败'));
      }

      if (customBindingRes.data?.success) {
        setCustomOAuthBindings(customBindingRes.data.data || []);
      } else {
        showError(customBindingRes.data?.message || t('操作失败'));
      }
    } catch (error) {
      showError(
        error.response?.data?.message || error.message || t('操作失败'),
      );
    } finally {
      setBindingLoading(false);
    }
  }, [t, userId]);

  React.useEffect(() => {
    if (!visible) return;
    setShowUnboundOnly(false);
    setBindingActionLoading({});
    loadBindingData();
  }, [visible, loadBindingData]);

  const setBindingLoadingState = (key, value) => {
    setBindingActionLoading((prev) => ({ ...prev, [key]: value }));
  };

  const handleUnbindBuiltInAccount = (bindingItem) => {
    if (!userId) return;

    Modal.confirm({
      title: t('确认解绑'),
      content: t('确定要解绑 {{name}} 吗？', { name: bindingItem.name }),
      okText: t('确认'),
      cancelText: t('取消'),
      onOk: async () => {
        const loadingKey = `builtin-${bindingItem.key}`;
        setBindingLoadingState(loadingKey, true);
        try {
          const res = await API.delete(
            `/api/user/${userId}/bindings/${bindingItem.key}`,
          );
          if (!res.data?.success) {
            showError(res.data?.message || t('操作失败'));
            return;
          }
          formApiRef.current?.setValue(bindingItem.field, '');
          showSuccess(t('解绑成功'));
        } catch (error) {
          showError(
            error.response?.data?.message || error.message || t('操作失败'),
          );
        } finally {
          setBindingLoadingState(loadingKey, false);
        }
      },
    });
  };

  const handleUnbindCustomOAuthAccount = (provider) => {
    if (!userId) return;

    Modal.confirm({
      title: t('确认解绑'),
      content: t('确定要解绑 {{name}} 吗？', { name: provider.name }),
      okText: t('确认'),
      cancelText: t('取消'),
      onOk: async () => {
        const loadingKey = `custom-${provider.id}`;
        setBindingLoadingState(loadingKey, true);
        try {
          const res = await API.delete(
            `/api/user/${userId}/oauth/bindings/${provider.id}`,
          );
          if (!res.data?.success) {
            showError(res.data?.message || t('操作失败'));
            return;
          }
          setCustomOAuthBindings((prev) =>
            prev.filter(
              (item) => Number(item.provider_id) !== Number(provider.id),
            ),
          );
          showSuccess(t('解绑成功'));
        } catch (error) {
          showError(
            error.response?.data?.message || error.message || t('操作失败'),
          );
        } finally {
          setBindingLoadingState(loadingKey, false);
        }
      },
    });
  };

  const currentValues = formApiRef.current?.getValues?.() || {};

  const builtInBindingItems = [
    {
      key: 'email',
      field: 'email',
      name: t('邮箱'),
      enabled: true,
      value: currentValues.email,
      icon: (
        <IconMail
          size='default'
          className='text-slate-600 dark:text-slate-300'
        />
      ),
    },
    {
      key: 'github',
      field: 'github_id',
      name: 'GitHub',
      enabled: Boolean(statusInfo.github_oauth),
      value: currentValues.github_id,
      icon: (
        <IconGithubLogo
          size='default'
          className='text-slate-600 dark:text-slate-300'
        />
      ),
    },
    {
      key: 'discord',
      field: 'discord_id',
      name: 'Discord',
      enabled: Boolean(statusInfo.discord_oauth),
      value: currentValues.discord_id,
      icon: (
        <SiDiscord size={20} className='text-slate-600 dark:text-slate-300' />
      ),
    },
    {
      key: 'oidc',
      field: 'oidc_id',
      name: 'OIDC',
      enabled: Boolean(statusInfo.oidc_enabled),
      value: currentValues.oidc_id,
      icon: (
        <IconLink
          size='default'
          className='text-slate-600 dark:text-slate-300'
        />
      ),
    },
    {
      key: 'wechat',
      field: 'wechat_id',
      name: t('微信'),
      enabled: Boolean(statusInfo.wechat_login),
      value: currentValues.wechat_id,
      icon: (
        <SiWechat size={20} className='text-slate-600 dark:text-slate-300' />
      ),
    },
    {
      key: 'telegram',
      field: 'telegram_id',
      name: 'Telegram',
      enabled: Boolean(statusInfo.telegram_oauth),
      value: currentValues.telegram_id,
      icon: (
        <SiTelegram size={20} className='text-slate-600 dark:text-slate-300' />
      ),
    },
    {
      key: 'linuxdo',
      field: 'linux_do_id',
      name: 'LinuxDO',
      enabled: Boolean(statusInfo.linuxdo_oauth),
      value: currentValues.linux_do_id,
      icon: (
        <SiLinux size={20} className='text-slate-600 dark:text-slate-300' />
      ),
    },
  ];

  const customBindingMap = new Map(
    customOAuthBindings.map((item) => [Number(item.provider_id), item]),
  );

  const customProviderMap = new Map(
    (statusInfo.custom_oauth_providers || []).map((provider) => [
      Number(provider.id),
      provider,
    ]),
  );

  customOAuthBindings.forEach((binding) => {
    if (!customProviderMap.has(Number(binding.provider_id))) {
      customProviderMap.set(Number(binding.provider_id), {
        id: binding.provider_id,
        name: binding.provider_name,
        icon: binding.provider_icon,
      });
    }
  });

  const customBindingItems = Array.from(customProviderMap.values()).map(
    (provider) => {
      const binding = customBindingMap.get(Number(provider.id));
      return {
        key: `custom-${provider.id}`,
        providerId: provider.id,
        name: provider.name,
        enabled: true,
        value: binding?.provider_user_id || '',
        icon: getOAuthProviderIcon(
          provider.icon || binding?.provider_icon || '',
          20,
        ),
      };
    },
  );

  const allBindingItems = [
    ...builtInBindingItems.map((item) => ({ ...item, type: 'builtin' })),
    ...customBindingItems.map((item) => ({ ...item, type: 'custom' })),
  ];

  const visibleBindingItems = showUnboundOnly
    ? allBindingItems.filter((item) => !item.value)
    : allBindingItems;

  return (
    <Modal
      centered
      visible={visible}
      onCancel={onCancel}
      footer={null}
      width={isMobile ? '100%' : 760}
      title={
        <div className='flex items-center'>
          <IconLink className='mr-2' />
          {t('绑定信息')}
        </div>
      }
    >
      <Spin spinning={bindingLoading}>
        <div className='flex items-center justify-between mb-4 gap-3 flex-wrap'>
          <Checkbox
            checked={showUnboundOnly}
            onChange={(e) => setShowUnboundOnly(Boolean(e.target.checked))}
          >
            {`${t('筛选')} ${t('未绑定')}`}
          </Checkbox>
          <Text type='tertiary'>
            {t('筛选')} · {visibleBindingItems.length}
          </Text>
        </div>

        {visibleBindingItems.length === 0 ? (
          <Card className='!rounded-xl border-dashed'>
            <Text type='tertiary'>{t('暂无自定义 OAuth 提供商')}</Text>
          </Card>
        ) : (
          <div className='grid grid-cols-1 lg:grid-cols-2 gap-3'>
            {visibleBindingItems.map((item) => {
              const isBound = Boolean(item.value);
              const loadingKey =
                item.type === 'builtin'
                  ? `builtin-${item.key}`
                  : `custom-${item.providerId}`;
              const statusText = isBound
                ? item.value
                : item.enabled
                  ? t('未绑定')
                  : t('未启用');

              return (
                <Card key={item.key} className='!rounded-xl'>
                  <div className='flex items-center justify-between gap-3'>
                    <div className='flex items-center flex-1 min-w-0'>
                      <div className='w-10 h-10 rounded-full bg-slate-100 dark:bg-slate-700 flex items-center justify-center mr-3 flex-shrink-0'>
                        {item.icon}
                      </div>
                      <div className='min-w-0 flex-1'>
                        <div className='font-medium text-gray-900 flex items-center gap-2'>
                          <span>{item.name}</span>
                          <Tag size='small' color='white'>
                            {item.type === 'builtin' ? 'Built-in' : 'Custom'}
                          </Tag>
                        </div>
                        <div className='text-sm text-gray-500 truncate'>
                          {statusText}
                        </div>
                      </div>
                    </div>
                    <Button
                      type='danger'
                      theme='borderless'
                      icon={<IconDelete />}
                      size='small'
                      disabled={!isBound}
                      loading={Boolean(bindingActionLoading[loadingKey])}
                      onClick={() => {
                        if (item.type === 'builtin') {
                          handleUnbindBuiltInAccount(item);
                          return;
                        }
                        handleUnbindCustomOAuthAccount({
                          id: item.providerId,
                          name: item.name,
                        });
                      }}
                    >
                      {t('解绑')}
                    </Button>
                  </div>
                </Card>
              );
            })}
          </div>
        )}
      </Spin>
    </Modal>
  );
};

export default UserBindingManagementModal;