import { PermissionAction } from '@supabase/shared-types/out/constants'
import { Check, ChevronUp, ExternalLink } from 'lucide-react'
import Link from 'next/link'
import { useEffect, useRef, useState } from 'react'
import ReactMarkdown from 'react-markdown'
import { toast } from 'sonner'

import { useParams } from 'common'
import { ButtonTooltip } from 'components/ui/ButtonTooltip'
import { DocsButton } from 'components/ui/DocsButton'
import type { components } from 'data/api'
import { useAuthConfigUpdateMutation } from 'data/auth/auth-config-update-mutation'
import { useProjectSettingsV2Query } from 'data/config/project-settings-v2-query'
import { useCustomDomainsQuery } from 'data/custom-domains/custom-domains-query'
import { useCheckPermissions } from 'hooks/misc/useCheckPermissions'
import { BASE_PATH } from 'lib/constants'
import {
  Alert_Shadcn_,
  AlertDescription_Shadcn_,
  AlertTitle_Shadcn_,
  Button,
  Collapsible,
  Form,
  Input,
  WarningIcon,
} from 'ui'
import { ProviderCollapsibleClasses } from './AuthProvidersForm.constants'
import type { Provider } from './AuthProvidersForm.types'
import FormField from './FormField'
import { Markdown } from 'components/interfaces/Markdown'
import { Admonition } from 'ui-patterns'

export interface ProviderFormProps {
  config: components['schemas']['GoTrueConfigResponse']
  provider: Provider
}

const ProviderForm = ({ config, provider }: ProviderFormProps) => {
  const ref = useRef<HTMLButtonElement>(null)
  const [open, setOpen] = useState(false)
  const { ref: projectRef, provider: urlProvider } = useParams()
  const { mutate: updateAuthConfig, isLoading: isUpdatingConfig } = useAuthConfigUpdateMutation()

  const doubleNegativeKeys = ['MAILER_AUTOCONFIRM', 'SMS_AUTOCONFIRM']
  const canUpdateConfig: boolean = useCheckPermissions(
    PermissionAction.UPDATE,
    'custom_config_gotrue'
  )

  const shouldDisableField = (field: string): boolean => {
    const shouldDisableSmsFields =
      config.HOOK_SEND_SMS_ENABLED &&
      field.startsWith('SMS_') &&
      ![
        'SMS_AUTOCONFIRM',
        'SMS_OTP_EXP',
        'SMS_OTP_LENGTH',
        'SMS_OTP_LENGTH',
        'SMS_TEMPLATE',
        'SMS_TEST_OTP',
        'SMS_TEST_OTP_VALID_UNTIL',
      ].includes(field)
    return (
      ['EXTERNAL_SLACK_CLIENT_ID', 'EXTERNAL_SLACK_SECRET'].includes(field) ||
      shouldDisableSmsFields
    )
  }

  const showAlert = (title: string) => {
    switch (title) {
      // TODO (KM): Remove after 10th October 2024 when we disable the provider
      case 'Slack (Deprecated)':
        return (
          <Alert_Shadcn_ variant="warning">
            <WarningIcon />
            <AlertTitle_Shadcn_>Slack (Deprecated) Provider</AlertTitle_Shadcn_>
            <AlertDescription_Shadcn_>
              Recently, Slack has updated their OAuth API. Please use the new Slack (OIDC) provider
              below. Developers using this provider should move over to the new provider. Please
              refer to our{' '}
              <a
                href="https://supabase.com/docs/guides/auth/social-login/auth-slack"
                className="underline"
                target="_blank"
              >
                documentation
              </a>{' '}
              for more details.
            </AlertDescription_Shadcn_>
          </Alert_Shadcn_>
        )
      case 'Phone':
        return (
          config.HOOK_SEND_SMS_ENABLED && (
            <Alert_Shadcn_>
              <WarningIcon />
              <AlertTitle_Shadcn_>
                SMS provider settings are disabled while the SMS hook is enabled.
              </AlertTitle_Shadcn_>
              <AlertDescription_Shadcn_ className="flex flex-col gap-y-3">
                <p>The SMS hook will be used in place of the SMS provider configured</p>
                <Button asChild type="default" className="w-min" icon={<ExternalLink />}>
                  <Link href={`/project/${projectRef}/auth/hooks`}>View auth hooks</Link>
                </Button>
              </AlertDescription_Shadcn_>
            </Alert_Shadcn_>
          )
        )
      default:
        return null
    }
  }

  const { data: settings } = useProjectSettingsV2Query({ projectRef })
  const protocol = settings?.app_config?.protocol ?? 'https'
  const endpoint = settings?.app_config?.endpoint
  const apiUrl = `${protocol}://${endpoint}`

  const { data: customDomainData } = useCustomDomainsQuery({ projectRef })

  const generateInitialValues = () => {
    const initialValues: { [x: string]: string | boolean } = {}

    // the config is already loaded through the parent component
    Object.keys(provider.properties).forEach((key) => {
      // When the key is a 'double negative' key, we must reverse the boolean before adding it to the form
      const isDoubleNegative = doubleNegativeKeys.includes(key)

      if (provider.title === 'SAML 2.0') {
        const configValue = (config as any)[key]
        initialValues[key] =
          configValue || (provider.properties[key].type === 'boolean' ? false : '')
      } else {
        if (isDoubleNegative) {
          initialValues[key] = !(config as any)[key]
        } else {
          const configValue = (config as any)[key]
          initialValues[key] = configValue
            ? configValue
            : provider.properties[key].type === 'boolean'
              ? false
              : ''
        }
      }
    })

    return initialValues
  }

  const isSAMLEnabled: boolean =
    provider.title === 'SAML 2.0' && config && (config as any)['SAML_ENABLED']
  // [Joel] Introduced as the new LinkedIn provider has a corresponding config var of LINKEDIN_OIDC
  const isLinkedInOIDCEnabled: boolean =
    provider.title === 'LinkedIn (OIDC)' &&
    config &&
    (config as any)['EXTERNAL_LINKEDIN_OIDC_ENABLED']
  const isSlackOIDCEnabled =
    provider.title === 'Slack (OIDC)' && config['EXTERNAL_SLACK_OIDC_ENABLED']
  const isExternalProviderAndEnabled: boolean =
    config && (config as any)[`EXTERNAL_${provider?.title?.toUpperCase()}_ENABLED`]

  // [Joshen] Doing this check as SAML doesn't follow the same naming structure as the other provider options
  const isActive: boolean =
    isSAMLEnabled || isExternalProviderAndEnabled || isLinkedInOIDCEnabled || isSlackOIDCEnabled
  const INITIAL_VALUES = generateInitialValues()

  const onSubmit = (values: any, { resetForm }: any) => {
    const payload = { ...values }

    // Format payload for the following checks:
    // 1. Convert all empty string values to null
    // 2. When the key is a 'double negative' key, we must reverse the boolean before the payload can be sent
    Object.keys(values).map((x: string) => {
      if (doubleNegativeKeys.includes(x)) payload[x] = !values[x]
      if (payload[x] === '') payload[x] = null
    })

    updateAuthConfig(
      { projectRef: projectRef!, config: payload },
      {
        onSuccess: () => {
          resetForm({ values: { ...values }, initialValues: { ...values } })
          setOpen(false)
          toast.success('Successfully updated settings')
        },
      }
    )
  }

  useEffect(() => {
    if (urlProvider?.toLowerCase() === provider.title.toLowerCase()) {
      setOpen(true)
      ref.current?.scrollIntoView({ behavior: 'smooth', block: 'start' })
    }
    // eslint-disable-next-line react-hooks/exhaustive-deps
  }, [urlProvider])

  return (
    <Collapsible
      open={open}
      onOpenChange={setOpen}
      className={ProviderCollapsibleClasses.join(' ')}
    >
      <Collapsible.Trigger asChild>
        <button
          ref={ref}
          type="button"
          className="group flex w-full items-center justify-between rounded py-3 px-4 text-foreground"
        >
          <div className="flex items-center gap-3">
            <ChevronUp
              className="text-border-stronger transition data-open-parent:rotate-0 data-closed-parent:rotate-180"
              strokeWidth={2}
              width={14}
            />
            <img
              src={`${BASE_PATH}/img/icons/${provider.misc.iconKey}.svg`}
              width={18}
              alt={`${provider.title} auth icon`}
            />
            <span className="text-sm">{provider.title}</span>
          </div>
          <div className="flex items-center gap-3">
            {isActive ? (
              <div className="flex items-center gap-1 rounded-full border border-brand-400 bg-brand-200 py-1 px-1 text-xs text-brand">
                <span className="rounded-full bg-brand p-0.5 text-xs text-brand-200">
                  <Check strokeWidth={2} size={12} />
                </span>
                <span className="px-1">Enabled</span>
              </div>
            ) : (
              <div className="rounded-md border border-strong bg-surface-100 py-1 px-3 text-xs text-foreground-lighter">
                Disabled
              </div>
            )}
          </div>
        </button>
      </Collapsible.Trigger>
      <Form
        name={`provider-${provider.title}-form`}
        initialValues={INITIAL_VALUES}
        validationSchema={provider.validationSchema}
        onSubmit={onSubmit}
      >
        {({ handleReset, initialValues, values, setFieldValue }: any) => {
          const noChanges = JSON.stringify(initialValues) === JSON.stringify(values)
          return (
            <Collapsible.Content>
              <div className="group border-t border-strong bg-surface-100 py-6 px-4 md:px-6 text-foreground">
                <div className="mx-auto my-2 md:my-6 max-w-lg space-y-6">
                  {showAlert(provider.title)}
                  {Object.keys(provider.properties).map((x: string) => (
                    <FormField
                      key={x}
                      name={x}
                      setFieldValue={setFieldValue}
                      properties={provider.properties[x]}
                      formValues={values}
                      disabled={
                        // TODO (KM): Remove after 10th October 2024 when we disable the provider
                        shouldDisableField(x) || !canUpdateConfig
                      }
                    />
                  ))}

                  {provider?.misc?.alert && (
                    <Admonition
                      type="warning"
                      title={provider.misc.alert.title}
                      description={
                        <>
                          <ReactMarkdown>{provider.misc.alert.description}</ReactMarkdown>
                        </>
                      }
                    />
                  )}

                  {provider.misc.requiresRedirect && (
                    <>
                      <Input
                        copy
                        readOnly
                        disabled
                        label="Callback URL (for OAuth)"
                        value={
                          customDomainData?.customDomain?.status === 'active'
                            ? `https://${customDomainData.customDomain?.hostname}/auth/v1/callback`
                            : `${apiUrl}/auth/v1/callback`
                        }
                        descriptionText={
                          <Markdown
                            content={provider.misc.helper}
                            className="text-foreground-lighter"
                          />
                        }
                      />
                    </>
                  )}
                  <div className="flex items-center justify-between">
                    <DocsButton href={provider.link} />
                    <div className="flex items-center gap-x-3">
                      <Button
                        type="default"
                        htmlType="reset"
                        onClick={() => {
                          handleReset()
                          setOpen(false)
                        }}
                        disabled={isUpdatingConfig}
                      >
                        Cancel
                      </Button>
                      <ButtonTooltip
                        htmlType="submit"
                        loading={isUpdatingConfig}
                        disabled={isUpdatingConfig || !canUpdateConfig || noChanges}
                        tooltip={{
                          content: {
                            side: 'bottom',
                            text: !canUpdateConfig
                              ? 'You need additional permissions to update provider settings'
                              : undefined,
                          },
                        }}
                      >
                        Save
                      </ButtonTooltip>
                    </div>
                  </div>
                </div>
              </div>
            </Collapsible.Content>
          )
        }}
      </Form>
    </Collapsible>
  )
}

export default ProviderForm