import React from 'react'
import {View} from 'react-native'
import {ModerationCause} from '@atproto/api'
import {msg, Trans} from '@lingui/macro'
import {useLingui} from '@lingui/react'

import {useModerationCauseDescription} from '#/lib/moderation/useModerationCauseDescription'
import {makeProfileLink} from '#/lib/routes/links'
import {listUriToHref} from '#/lib/strings/url-helpers'
import {isNative} from '#/platform/detection'
import {atoms as a, useTheme} from '#/alf'
import * as Dialog from '#/components/Dialog'
import {Divider} from '#/components/Divider'
import {InlineLinkText} from '#/components/Link'
import {Text} from '#/components/Typography'

export {useDialogControl as useModerationDetailsDialogControl} from '#/components/Dialog'

export interface ModerationDetailsDialogProps {
  control: Dialog.DialogOuterProps['control']
  modcause: ModerationCause
}

export function ModerationDetailsDialog(props: ModerationDetailsDialogProps) {
  return (
    <Dialog.Outer control={props.control}>
      <Dialog.Handle />
      <ModerationDetailsDialogInner {...props} />
    </Dialog.Outer>
  )
}

function ModerationDetailsDialogInner({
  modcause,
  control,
}: ModerationDetailsDialogProps & {
  control: Dialog.DialogOuterProps['control']
}) {
  const t = useTheme()
  const {_} = useLingui()
  const desc = useModerationCauseDescription(modcause)

  let name
  let description
  if (!modcause) {
    name = _(msg`Content Warning`)
    description = _(
      msg`Moderator has chosen to set a general warning on the content.`,
    )
  } else if (modcause.type === 'blocking') {
    if (modcause.source.type === 'list') {
      const list = modcause.source.list
      name = _(msg`User Blocked by List`)
      description = (
        <Trans>
          This user is included in the{' '}
          <InlineLinkText to={listUriToHref(list.uri)} style={[a.text_sm]}>
            {list.name}
          </InlineLinkText>{' '}
          list which you have blocked.
        </Trans>
      )
    } else {
      name = _(msg`User Blocked`)
      description = _(
        msg`You have blocked this user. You cannot view their content.`,
      )
    }
  } else if (modcause.type === 'blocked-by') {
    name = _(msg`User Blocks You`)
    description = _(
      msg`This user has blocked you. You cannot view their content.`,
    )
  } else if (modcause.type === 'block-other') {
    name = _(msg`Content Not Available`)
    description = _(
      msg`This content is not available because one of the users involved has blocked the other.`,
    )
  } else if (modcause.type === 'muted') {
    if (modcause.source.type === 'list') {
      const list = modcause.source.list
      name = _(msg`Account Muted by List`)
      description = (
        <Trans>
          This user is included in the{' '}
          <InlineLinkText to={listUriToHref(list.uri)} style={[a.text_sm]}>
            {list.name}
          </InlineLinkText>{' '}
          list which you have muted.
        </Trans>
      )
    } else {
      name = _(msg`Account Muted`)
      description = _(msg`You have muted this account.`)
    }
  } else if (modcause.type === 'mute-word') {
    name = _(msg`Post Hidden by Muted Word`)
    description = _(msg`You've chosen to hide a word or tag within this post.`)
  } else if (modcause.type === 'hidden') {
    name = _(msg`Post Hidden by You`)
    description = _(msg`You have hidden this post.`)
  } else if (modcause.type === 'label') {
    name = desc.name
    description = desc.description
  } else {
    // should never happen
    name = ''
    description = ''
  }

  return (
    <Dialog.ScrollableInner label={_(msg`Moderation details`)}>
      <Text style={[t.atoms.text, a.text_2xl, a.font_bold, a.mb_sm]}>
        {name}
      </Text>
      <Text style={[t.atoms.text, a.text_md, a.mb_lg, a.leading_snug]}>
        {description}
      </Text>

      {modcause.type === 'label' && (
        <>
          <Divider />
          <Text style={[t.atoms.text, a.text_md, a.leading_snug, a.mt_lg]}>
            {modcause.source.type === 'user' ? (
              <Trans>This label was applied by the author.</Trans>
            ) : (
              <Trans>
                This label was applied by{' '}
                <InlineLinkText
                  to={makeProfileLink({did: modcause.label.src, handle: ''})}
                  onPress={() => control.close()}
                  style={a.text_md}>
                  {desc.source}
                </InlineLinkText>
                .
              </Trans>
            )}
          </Text>
        </>
      )}

      {isNative && <View style={{height: 40}} />}

      <Dialog.Close />
    </Dialog.ScrollableInner>
  )
}