// Copyright 2021 Signal Messenger, LLC
// SPDX-License-Identifier: AGPL-3.0-only

import {
  identity,
  isEqual,
  isNumber,
  isObject,
  map,
  omit,
  pick,
  reduce,
} from 'lodash';
import { createSelectorCreator } from 'reselect';
import filesize from 'filesize';

import type {
  LastMessageStatus,
  MessageAttributesType,
  MessageReactionType,
  ShallowChallengeError,
} from '../../model-types.d';

import type { TimelineItemType } from '../../components/conversation/TimelineItem';
import type { PropsData } from '../../components/conversation/Message';
import type { PropsData as TimerNotificationProps } from '../../components/conversation/TimerNotification';
import type { PropsData as ChangeNumberNotificationProps } from '../../components/conversation/ChangeNumberNotification';
import type { PropsData as SafetyNumberNotificationProps } from '../../components/conversation/SafetyNumberNotification';
import type { PropsData as VerificationNotificationProps } from '../../components/conversation/VerificationNotification';
import type { PropsDataType as GroupsV2Props } from '../../components/conversation/GroupV2Change';
import type { PropsDataType as GroupV1MigrationPropsType } from '../../components/conversation/GroupV1Migration';
import type { PropsDataType as DeliveryIssuePropsType } from '../../components/conversation/DeliveryIssueNotification';
import type {
  PropsData as GroupNotificationProps,
  ChangeType,
} from '../../components/conversation/GroupNotification';
import type { PropsType as ProfileChangeNotificationPropsType } from '../../components/conversation/ProfileChangeNotification';
import type { QuotedAttachmentType } from '../../components/conversation/Quote';

import { getDomain, isStickerPack } from '../../types/LinkPreview';
import type { UUIDStringType } from '../../types/UUID';

import type { EmbeddedContactType } from '../../types/EmbeddedContact';
import { embeddedContactSelector } from '../../types/EmbeddedContact';
import type { AssertProps, BodyRangesType } from '../../types/Util';
import type { LinkPreviewType } from '../../types/message/LinkPreviews';
import { CallMode } from '../../types/Calling';
import { SignalService as Proto } from '../../protobuf';
import type { AttachmentType } from '../../types/Attachment';
import { isVoiceMessage } from '../../types/Attachment';
import { ReadStatus } from '../../messages/MessageReadStatus';

import type { CallingNotificationType } from '../../util/callingNotification';
import { memoizeByRoot } from '../../util/memoizeByRoot';
import { missingCaseError } from '../../util/missingCaseError';
import { isNotNil } from '../../util/isNotNil';
import { isMoreRecentThan } from '../../util/timestamp';
import * as iterables from '../../util/iterables';
import { strictAssert } from '../../util/assert';

import type { ConversationType } from '../ducks/conversations';

import type { AccountSelectorType } from './accounts';
import type { CallSelectorType, CallStateType } from './calling';
import type {
  GetConversationByIdType,
  ContactNameColorSelectorType,
} from './conversations';
import { isMissingRequiredProfileSharing } from './conversations';
import {
  SendStatus,
  isDelivered,
  isFailed,
  isMessageJustForMe,
  isRead,
  isSent,
  isViewed,
  maxStatus,
  someSendStatus,
} from '../../messages/MessageSendState';
import * as log from '../../logging/log';

const THREE_HOURS = 3 * 60 * 60 * 1000;

type FormattedContact = Partial<ConversationType> &
  Pick<
    ConversationType,
    | 'acceptedMessageRequest'
    | 'id'
    | 'isMe'
    | 'sharedGroupNames'
    | 'title'
    | 'type'
    | 'unblurredAvatarPath'
  >;
type PropsForMessage = Omit<PropsData, 'interactionMode'>;
type PropsForUnsupportedMessage = {
  canProcessNow: boolean;
  contact: FormattedContact;
};

export type GetPropsForBubbleOptions = Readonly<{
  conversationSelector: GetConversationByIdType;
  ourConversationId: string;
  ourNumber?: string;
  ourUuid: UUIDStringType;
  selectedMessageId?: string;
  selectedMessageCounter?: number;
  regionCode: string;
  callSelector: CallSelectorType;
  activeCall?: CallStateType;
  accountSelector: AccountSelectorType;
  contactNameColorSelector: ContactNameColorSelectorType;
}>;

export function isIncoming(
  message: Pick<MessageAttributesType, 'type'>
): boolean {
  return message.type === 'incoming';
}

export function isOutgoing(
  message: Pick<MessageAttributesType, 'type'>
): boolean {
  return message.type === 'outgoing';
}

export function hasErrors(
  message: Pick<MessageAttributesType, 'errors'>
): boolean {
  return message.errors ? message.errors.length > 0 : false;
}

export function getSource(
  message: MessageAttributesType,
  ourNumber: string | undefined
): string | undefined {
  if (isIncoming(message)) {
    return message.source;
  }
  if (!isOutgoing(message)) {
    log.warn('message.getSource: Called for non-incoming/non-outoing message');
  }

  return ourNumber;
}

export function getSourceDevice(
  message: MessageAttributesType,
  ourDeviceId: number
): string | number | undefined {
  const { sourceDevice } = message;

  if (isIncoming(message)) {
    return sourceDevice;
  }
  if (!isOutgoing(message)) {
    log.warn(
      'message.getSourceDevice: Called for non-incoming/non-outoing message'
    );
  }

  return sourceDevice || ourDeviceId;
}

export function getSourceUuid(
  message: MessageAttributesType,
  ourUuid: string | undefined
): string | undefined {
  if (isIncoming(message)) {
    return message.sourceUuid;
  }
  if (!isOutgoing(message)) {
    log.warn(
      'message.getSourceUuid: Called for non-incoming/non-outoing message'
    );
  }

  return ourUuid;
}

export type GetContactOptions = Pick<
  GetPropsForBubbleOptions,
  'conversationSelector' | 'ourConversationId' | 'ourNumber' | 'ourUuid'
>;

function getContactId(
  message: MessageAttributesType,
  {
    conversationSelector,
    ourConversationId,
    ourNumber,
    ourUuid,
  }: GetContactOptions
): string {
  const source = getSource(message, ourNumber);
  const sourceUuid = getSourceUuid(message, ourUuid);

  if (!source && !sourceUuid) {
    return ourConversationId;
  }

  const conversation = conversationSelector(sourceUuid || source);
  return conversation.id;
}

// TODO: DESKTOP-2145
export function getContact(
  message: MessageAttributesType,
  {
    conversationSelector,
    ourConversationId,
    ourNumber,
    ourUuid,
  }: GetContactOptions
): ConversationType {
  const source = getSource(message, ourNumber);
  const sourceUuid = getSourceUuid(message, ourUuid);

  if (!source && !sourceUuid) {
    return conversationSelector(ourConversationId);
  }

  return conversationSelector(sourceUuid || source);
}

export function getConversation(
  message: Pick<MessageAttributesType, 'conversationId'>,
  conversationSelector: GetConversationByIdType
): ConversationType {
  return conversationSelector(message.conversationId);
}

// Message

export const getAttachmentsForMessage = createSelectorCreator(memoizeByRoot)(
  // `memoizeByRoot` requirement
  identity,

  ({ sticker }: MessageAttributesType) => sticker,
  ({ attachments }: MessageAttributesType) => attachments,
  (
    _: MessageAttributesType,
    sticker: MessageAttributesType['sticker'],
    attachments: MessageAttributesType['attachments'] = []
  ): Array<AttachmentType> => {
    if (sticker && sticker.data) {
      const { data } = sticker;

      // We don't show anything if we don't have the sticker or the blurhash...
      if (!data.blurHash && (data.pending || !data.path)) {
        return [];
      }

      return [
        {
          ...data,
          // We want to show the blurhash for stickers, not the spinner
          pending: false,
          url: data.path
            ? window.Signal.Migrations.getAbsoluteAttachmentPath(data.path)
            : undefined,
        },
      ];
    }

    return attachments
      .filter(attachment => !attachment.error)
      .map(attachment => getPropsForAttachment(attachment))
      .filter(isNotNil);
  }
);

export const processBodyRanges = createSelectorCreator(memoizeByRoot, isEqual)(
  // `memoizeByRoot` requirement
  identity,

  (
    { bodyRanges }: Pick<MessageAttributesType, 'bodyRanges'>,
    { conversationSelector }: { conversationSelector: GetConversationByIdType }
  ): BodyRangesType | undefined => {
    if (!bodyRanges) {
      return undefined;
    }

    return bodyRanges
      .filter(range => range.mentionUuid)
      .map(range => {
        const conversation = conversationSelector(range.mentionUuid);

        return {
          ...range,
          conversationID: conversation.id,
          replacementText: conversation.title,
        };
      })
      .sort((a, b) => b.start - a.start);
  },
  (_: MessageAttributesType, ranges?: BodyRangesType) => ranges
);

const getAuthorForMessage = createSelectorCreator(memoizeByRoot)(
  // `memoizeByRoot` requirement
  identity,

  getContact,

  (_: MessageAttributesType, convo: ConversationType): PropsData['author'] => {
    const {
      acceptedMessageRequest,
      avatarPath,
      color,
      id,
      isMe,
      name,
      phoneNumber,
      profileName,
      sharedGroupNames,
      title,
      unblurredAvatarPath,
    } = convo;

    const unsafe = {
      acceptedMessageRequest,
      avatarPath,
      color,
      id,
      isMe,
      name,
      phoneNumber,
      profileName,
      sharedGroupNames,
      title,
      unblurredAvatarPath,
    };

    const safe: AssertProps<PropsData['author'], typeof unsafe> = unsafe;

    return safe;
  }
);

const getCachedAuthorForMessage = createSelectorCreator(memoizeByRoot, isEqual)(
  // `memoizeByRoot` requirement
  identity,

  getAuthorForMessage,

  (
    _: MessageAttributesType,
    author: PropsData['author']
  ): PropsData['author'] => author
);

export const getPreviewsForMessage = createSelectorCreator(memoizeByRoot)(
  // `memoizeByRoot` requirement
  identity,

  ({ preview }: MessageAttributesType) => preview,

  (
    _: MessageAttributesType,
    previews: MessageAttributesType['preview'] = []
  ): Array<LinkPreviewType> => {
    return previews.map(preview => ({
      ...preview,
      isStickerPack: isStickerPack(preview.url),
      domain: getDomain(preview.url),
      image: preview.image ? getPropsForAttachment(preview.image) : null,
    }));
  }
);

export const getReactionsForMessage = createSelectorCreator(
  memoizeByRoot,
  isEqual
)(
  // `memoizeByRoot` requirement
  identity,

  (
    { reactions = [] }: MessageAttributesType,
    { conversationSelector }: { conversationSelector: GetConversationByIdType }
  ) => {
    const reactionBySender = new Map<string, MessageReactionType>();
    for (const reaction of reactions) {
      const existingReaction = reactionBySender.get(reaction.fromId);
      if (
        !existingReaction ||
        reaction.timestamp > existingReaction.timestamp
      ) {
        reactionBySender.set(reaction.fromId, reaction);
      }
    }

    const reactionsWithEmpties = reactionBySender.values();
    const reactionsWithEmoji = iterables.filter(
      reactionsWithEmpties,
      re => re.emoji
    );
    const formattedReactions = iterables.map(reactionsWithEmoji, re => {
      const c = conversationSelector(re.fromId);

      type From = NonNullable<PropsData['reactions']>[0]['from'];

      const unsafe = pick(c, [
        'acceptedMessageRequest',
        'avatarPath',
        'color',
        'id',
        'isMe',
        'name',
        'phoneNumber',
        'profileName',
        'sharedGroupNames',
        'title',
      ]);

      const from: AssertProps<From, typeof unsafe> = unsafe;

      strictAssert(re.emoji, 'Expected all reactions to have an emoji');

      return {
        emoji: re.emoji,
        timestamp: re.timestamp,
        from,
      };
    });

    return [...formattedReactions];
  },

  (_: MessageAttributesType, reactions: PropsData['reactions']) => reactions
);

export const getPropsForQuote = createSelectorCreator(memoizeByRoot, isEqual)(
  // `memoizeByRoot` requirement
  identity,

  (
    message: Pick<MessageAttributesType, 'conversationId' | 'quote'>,
    {
      conversationSelector,
      ourConversationId,
    }: {
      conversationSelector: GetConversationByIdType;
      ourConversationId?: string;
    }
  ): PropsData['quote'] => {
    const { quote } = message;
    if (!quote) {
      return undefined;
    }

    const {
      author,
      authorUuid,
      id: sentAt,
      isViewOnce,
      referencedMessageNotFound,
      text,
    } = quote;

    const contact = conversationSelector(authorUuid || author);

    const authorId = contact.id;
    const authorName = contact.name;
    const authorPhoneNumber = contact.phoneNumber;
    const authorProfileName = contact.profileName;
    const authorTitle = contact.title;
    const isFromMe = authorId === ourConversationId;

    const firstAttachment = quote.attachments && quote.attachments[0];
    const conversation = getConversation(message, conversationSelector);

    const defaultConversationColor = window.Events.getDefaultConversationColor();

    return {
      authorId,
      authorName,
      authorPhoneNumber,
      authorProfileName,
      authorTitle,
      bodyRanges: processBodyRanges(quote, { conversationSelector }),
      conversationColor:
        conversation.conversationColor || defaultConversationColor.color,
      customColor:
        conversation.customColor ||
        defaultConversationColor.customColorData?.value,
      isFromMe,
      rawAttachment: firstAttachment
        ? processQuoteAttachment(firstAttachment)
        : undefined,
      isViewOnce,
      referencedMessageNotFound,
      sentAt: Number(sentAt),
      text: createNonBreakingLastSeparator(text),
    };
  },

  (_: unknown, quote: PropsData['quote']) => quote
);

export type GetPropsForMessageOptions = Pick<
  GetPropsForBubbleOptions,
  | 'conversationSelector'
  | 'ourConversationId'
  | 'ourUuid'
  | 'ourNumber'
  | 'selectedMessageId'
  | 'selectedMessageCounter'
  | 'regionCode'
  | 'accountSelector'
  | 'contactNameColorSelector'
>;

type ShallowPropsType = Pick<
  PropsForMessage,
  | 'canDeleteForEveryone'
  | 'canDownload'
  | 'canReply'
  | 'contact'
  | 'contactNameColor'
  | 'conversationColor'
  | 'conversationId'
  | 'conversationType'
  | 'customColor'
  | 'deletedForEveryone'
  | 'direction'
  | 'expirationLength'
  | 'expirationTimestamp'
  | 'id'
  | 'isBlocked'
  | 'isMessageRequestAccepted'
  | 'isSelected'
  | 'isSelectedCounter'
  | 'isSticker'
  | 'isTapToView'
  | 'isTapToViewError'
  | 'isTapToViewExpired'
  | 'readStatus'
  | 'selectedReaction'
  | 'status'
  | 'text'
  | 'textPending'
  | 'timestamp'
>;

const getShallowPropsForMessage = createSelectorCreator(memoizeByRoot, isEqual)(
  // `memoizeByRoot` requirement
  identity,

  (
    message: MessageAttributesType,
    {
      accountSelector,
      conversationSelector,
      ourConversationId,
      ourNumber,
      ourUuid,
      regionCode,
      selectedMessageId,
      selectedMessageCounter,
      contactNameColorSelector,
    }: GetPropsForMessageOptions
  ): ShallowPropsType => {
    const { expireTimer, expirationStartTimestamp, conversationId } = message;
    const expirationLength = expireTimer ? expireTimer * 1000 : undefined;
    const expirationTimestamp =
      expirationStartTimestamp && expirationLength
        ? expirationStartTimestamp + expirationLength
        : undefined;

    const conversation = getConversation(message, conversationSelector);
    const isGroup = conversation.type === 'group';
    const { sticker } = message;

    const isMessageTapToView = isTapToView(message);

    const isSelected = message.id === selectedMessageId;

    const selectedReaction = (
      (message.reactions || []).find(re => re.fromId === ourConversationId) ||
      {}
    ).emoji;

    const authorId = getContactId(message, {
      conversationSelector,
      ourConversationId,
      ourNumber,
      ourUuid,
    });
    const contactNameColor = contactNameColorSelector(conversationId, authorId);

    const defaultConversationColor = window.Events.getDefaultConversationColor();

    return {
      canDeleteForEveryone: canDeleteForEveryone(message),
      canDownload: canDownload(message, conversationSelector),
      canReply: canReply(message, ourConversationId, conversationSelector),
      contact: getPropsForEmbeddedContact(message, regionCode, accountSelector),
      contactNameColor,
      conversationColor:
        conversation.conversationColor || defaultConversationColor.color,
      conversationId,
      conversationType: isGroup ? 'group' : 'direct',
      customColor:
        conversation.customColor ||
        defaultConversationColor.customColorData?.value,
      deletedForEveryone: message.deletedForEveryone || false,
      direction: isIncoming(message) ? 'incoming' : 'outgoing',
      expirationLength,
      expirationTimestamp,
      id: message.id,
      isBlocked: conversation.isBlocked || false,
      isMessageRequestAccepted: conversation?.acceptedMessageRequest ?? true,
      isSelected,
      isSelectedCounter: isSelected ? selectedMessageCounter : undefined,
      isSticker: Boolean(sticker),
      isTapToView: isMessageTapToView,
      isTapToViewError:
        isMessageTapToView && isIncoming(message) && message.isTapToViewInvalid,
      isTapToViewExpired: isMessageTapToView && message.isErased,
      readStatus: message.readStatus ?? ReadStatus.Read,
      selectedReaction,
      status: getMessagePropStatus(message, ourConversationId),
      text: createNonBreakingLastSeparator(message.body),
      textPending: message.bodyPending,
      timestamp: message.sent_at,
    };
  },

  (_: unknown, props: ShallowPropsType) => props
);

export const getPropsForMessage = createSelectorCreator(memoizeByRoot)(
  // `memoizeByRoot` requirement
  identity,

  getAttachmentsForMessage,
  processBodyRanges,
  getCachedAuthorForMessage,
  getPreviewsForMessage,
  getReactionsForMessage,
  getPropsForQuote,
  getShallowPropsForMessage,
  (
    _: unknown,
    attachments: Array<AttachmentType>,
    bodyRanges: BodyRangesType | undefined,
    author: PropsData['author'],
    previews: Array<LinkPreviewType>,
    reactions: PropsData['reactions'],
    quote: PropsData['quote'],
    shallowProps: ShallowPropsType
  ): Omit<PropsForMessage, 'renderingContext'> => {
    return {
      attachments,
      author,
      bodyRanges,
      previews,
      quote,
      reactions,
      ...shallowProps,
    };
  }
);

export const getBubblePropsForMessage = createSelectorCreator(memoizeByRoot)(
  // `memoizeByRoot` requirement
  identity,

  getPropsForMessage,
  (_: unknown, data: ReturnType<typeof getPropsForMessage>) => ({
    type: 'message' as const,
    data,
  })
);

// Top-level prop generation for the message bubble
export function getPropsForBubble(
  message: MessageAttributesType,
  options: GetPropsForBubbleOptions
): TimelineItemType {
  if (isUnsupportedMessage(message)) {
    return {
      type: 'unsupportedMessage',
      data: getPropsForUnsupportedMessage(message, options),
    };
  }
  if (isGroupV2Change(message)) {
    return {
      type: 'groupV2Change',
      data: getPropsForGroupV2Change(message, options),
    };
  }
  if (isGroupV1Migration(message)) {
    return {
      type: 'groupV1Migration',
      data: getPropsForGroupV1Migration(message, options),
    };
  }
  if (isMessageHistoryUnsynced(message)) {
    return {
      type: 'linkNotification',
      data: null,
    };
  }
  if (isExpirationTimerUpdate(message)) {
    return {
      type: 'timerNotification',
      data: getPropsForTimerNotification(message, options),
    };
  }
  if (isKeyChange(message)) {
    return {
      type: 'safetyNumberNotification',
      data: getPropsForSafetyNumberNotification(message, options),
    };
  }
  if (isVerifiedChange(message)) {
    return {
      type: 'verificationNotification',
      data: getPropsForVerificationNotification(message, options),
    };
  }
  if (isGroupUpdate(message)) {
    return {
      type: 'groupNotification',
      data: getPropsForGroupNotification(message, options),
    };
  }
  if (isEndSession(message)) {
    return {
      type: 'resetSessionNotification',
      data: null,
    };
  }
  if (isCallHistory(message)) {
    return {
      type: 'callHistory',
      data: getPropsForCallHistory(message, options),
    };
  }
  if (isProfileChange(message)) {
    return {
      type: 'profileChange',
      data: getPropsForProfileChange(message, options),
    };
  }
  if (isUniversalTimerNotification(message)) {
    return {
      type: 'universalTimerNotification',
      data: null,
    };
  }
  if (isChangeNumberNotification(message)) {
    return {
      type: 'changeNumberNotification',
      data: getPropsForChangeNumberNotification(message, options),
    };
  }
  if (isChatSessionRefreshed(message)) {
    return {
      type: 'chatSessionRefreshed',
      data: null,
    };
  }
  if (isDeliveryIssue(message)) {
    return {
      type: 'deliveryIssue',
      data: getPropsForDeliveryIssue(message, options),
    };
  }

  return getBubblePropsForMessage(message, options);
}

// Unsupported Message

export function isUnsupportedMessage(message: MessageAttributesType): boolean {
  const versionAtReceive = message.supportedVersionAtReceive;
  const requiredVersion = message.requiredProtocolVersion;

  return (
    isNumber(versionAtReceive) &&
    isNumber(requiredVersion) &&
    versionAtReceive < requiredVersion
  );
}

function getPropsForUnsupportedMessage(
  message: MessageAttributesType,
  options: GetContactOptions
): PropsForUnsupportedMessage {
  const CURRENT_PROTOCOL_VERSION = Proto.DataMessage.ProtocolVersion.CURRENT;

  const requiredVersion = message.requiredProtocolVersion;
  const canProcessNow = Boolean(
    CURRENT_PROTOCOL_VERSION &&
      requiredVersion &&
      CURRENT_PROTOCOL_VERSION >= requiredVersion
  );

  return {
    canProcessNow,
    contact: getContact(message, options),
  };
}

// GroupV2 Change

export function isGroupV2Change(message: MessageAttributesType): boolean {
  return Boolean(message.groupV2Change);
}

function getPropsForGroupV2Change(
  message: MessageAttributesType,
  { conversationSelector, ourUuid }: GetPropsForBubbleOptions
): GroupsV2Props {
  const change = message.groupV2Change;

  if (!change) {
    throw new Error('getPropsForGroupV2Change: Change is missing!');
  }

  const conversation = getConversation(message, conversationSelector);

  return {
    groupName: conversation?.type === 'group' ? conversation?.name : undefined,
    ourUuid,
    change,
  };
}

// GroupV1 Migration

export function isGroupV1Migration(message: MessageAttributesType): boolean {
  return message.type === 'group-v1-migration';
}

function getPropsForGroupV1Migration(
  message: MessageAttributesType,
  { conversationSelector }: GetPropsForBubbleOptions
): GroupV1MigrationPropsType {
  const migration = message.groupMigration;
  if (!migration) {
    // Backwards-compatibility with data schema in early betas
    const invitedGV2Members = message.invitedGV2Members || [];
    const droppedGV2MemberIds = message.droppedGV2MemberIds || [];

    const invitedMembers = invitedGV2Members.map(item =>
      conversationSelector(item.uuid)
    );
    const droppedMembers = droppedGV2MemberIds.map(conversationId =>
      conversationSelector(conversationId)
    );

    return {
      areWeInvited: false,
      droppedMembers,
      invitedMembers,
    };
  }

  const {
    areWeInvited,
    droppedMemberIds,
    invitedMembers: rawInvitedMembers,
  } = migration;
  const invitedMembers = rawInvitedMembers.map(item =>
    conversationSelector(item.uuid)
  );
  const droppedMembers = droppedMemberIds.map(conversationId =>
    conversationSelector(conversationId)
  );

  return {
    areWeInvited,
    droppedMembers,
    invitedMembers,
  };
}

// Message History Unsynced

export function isMessageHistoryUnsynced(
  message: MessageAttributesType
): boolean {
  return message.type === 'message-history-unsynced';
}

// Note: props are null!

// Expiration Timer Update

export function isExpirationTimerUpdate(
  message: Pick<MessageAttributesType, 'flags'>
): boolean {
  const flag = Proto.DataMessage.Flags.EXPIRATION_TIMER_UPDATE;
  // eslint-disable-next-line no-bitwise
  return Boolean(message.flags && message.flags & flag);
}

function getPropsForTimerNotification(
  message: MessageAttributesType,
  { ourConversationId, conversationSelector }: GetPropsForBubbleOptions
): TimerNotificationProps {
  const timerUpdate = message.expirationTimerUpdate;
  if (!timerUpdate) {
    throw new Error(
      'getPropsForTimerNotification: missing expirationTimerUpdate!'
    );
  }

  const { expireTimer, fromSync, source, sourceUuid } = timerUpdate;
  const disabled = !expireTimer;
  const sourceId = sourceUuid || source;
  const formattedContact = conversationSelector(sourceId);

  const basicProps = {
    ...formattedContact,
    disabled,
    expireTimer,
    type: 'fromOther' as const,
  };

  if (fromSync) {
    return {
      ...basicProps,
      type: 'fromSync' as const,
    };
  }
  if (formattedContact.id === ourConversationId) {
    return {
      ...basicProps,
      type: 'fromMe' as const,
    };
  }
  if (!sourceId) {
    return {
      ...basicProps,
      type: 'fromMember' as const,
    };
  }

  return basicProps;
}

// Key Change

export function isKeyChange(message: MessageAttributesType): boolean {
  return message.type === 'keychange';
}

function getPropsForSafetyNumberNotification(
  message: MessageAttributesType,
  { conversationSelector }: GetPropsForBubbleOptions
): SafetyNumberNotificationProps {
  const conversation = getConversation(message, conversationSelector);
  const isGroup = conversation?.type === 'group';
  const identifier = message.key_changed;
  const contact = conversationSelector(identifier);

  return {
    isGroup,
    contact,
  };
}

// Verified Change

export function isVerifiedChange(message: MessageAttributesType): boolean {
  return message.type === 'verified-change';
}

function getPropsForVerificationNotification(
  message: MessageAttributesType,
  { conversationSelector }: GetPropsForBubbleOptions
): VerificationNotificationProps {
  const type = message.verified ? 'markVerified' : 'markNotVerified';
  const isLocal = message.local || false;
  const identifier = message.verifiedChanged;

  return {
    type,
    isLocal,
    contact: conversationSelector(identifier),
  };
}

// Group Update (V1)

export function isGroupUpdate(
  message: Pick<MessageAttributesType, 'group_update'>
): boolean {
  return Boolean(message.group_update);
}

function getPropsForGroupNotification(
  message: MessageAttributesType,
  options: GetContactOptions
): GroupNotificationProps {
  const groupUpdate = message.group_update;
  if (!groupUpdate) {
    throw new Error(
      'getPropsForGroupNotification: Message missing group_update'
    );
  }

  const { conversationSelector } = options;

  const changes = [];

  if (
    !groupUpdate.avatarUpdated &&
    !groupUpdate.left &&
    !groupUpdate.joined &&
    !groupUpdate.name
  ) {
    changes.push({
      type: 'general' as ChangeType,
    });
  }

  if (groupUpdate.joined?.length) {
    changes.push({
      type: 'add' as ChangeType,
      contacts: map(
        Array.isArray(groupUpdate.joined)
          ? groupUpdate.joined
          : [groupUpdate.joined],
        identifier => conversationSelector(identifier)
      ),
    });
  }

  if (groupUpdate.left === 'You') {
    changes.push({
      type: 'remove' as ChangeType,
    });
  } else if (groupUpdate.left) {
    changes.push({
      type: 'remove' as ChangeType,
      contacts: map(
        Array.isArray(groupUpdate.left) ? groupUpdate.left : [groupUpdate.left],
        identifier => conversationSelector(identifier)
      ),
    });
  }

  if (groupUpdate.name) {
    changes.push({
      type: 'name' as ChangeType,
      newName: groupUpdate.name,
    });
  }

  if (groupUpdate.avatarUpdated) {
    changes.push({
      type: 'avatar' as ChangeType,
    });
  }

  const from = getContact(message, options);

  return {
    from,
    changes,
  };
}

// End Session

export function isEndSession(
  message: Pick<MessageAttributesType, 'flags'>
): boolean {
  const flag = Proto.DataMessage.Flags.END_SESSION;
  // eslint-disable-next-line no-bitwise
  return Boolean(message.flags && message.flags & flag);
}

// Call History

export function isCallHistory(message: MessageAttributesType): boolean {
  return message.type === 'call-history';
}

export type GetPropsForCallHistoryOptions = Pick<
  GetPropsForBubbleOptions,
  'conversationSelector' | 'callSelector' | 'activeCall'
>;

export function getPropsForCallHistory(
  message: MessageAttributesType,
  {
    conversationSelector,
    callSelector,
    activeCall,
  }: GetPropsForCallHistoryOptions
): CallingNotificationType {
  const { callHistoryDetails } = message;
  if (!callHistoryDetails) {
    throw new Error('getPropsForCallHistory: Missing callHistoryDetails');
  }

  switch (callHistoryDetails.callMode) {
    // Old messages weren't saved with a call mode.
    case undefined:
    case CallMode.Direct:
      return {
        ...callHistoryDetails,
        callMode: CallMode.Direct,
      };
    case CallMode.Group: {
      const { conversationId } = message;
      if (!conversationId) {
        throw new Error('getPropsForCallHistory: missing conversation ID');
      }

      const creator = conversationSelector(callHistoryDetails.creatorUuid);
      let call = callSelector(conversationId);
      if (call && call.callMode !== CallMode.Group) {
        log.error(
          'getPropsForCallHistory: there is an unexpected non-group call; pretending it does not exist'
        );
        call = undefined;
      }

      return {
        activeCallConversationId: activeCall?.conversationId,
        callMode: CallMode.Group,
        conversationId,
        creator,
        deviceCount: call?.peekInfo.deviceCount ?? 0,
        ended: callHistoryDetails.eraId !== call?.peekInfo.eraId,
        maxDevices: call?.peekInfo.maxDevices ?? Infinity,
        startedTime: callHistoryDetails.startedTime,
      };
    }
    default:
      throw new Error(
        `getPropsForCallHistory: missing case ${missingCaseError(
          callHistoryDetails
        )}`
      );
  }
}

// Profile Change

export function isProfileChange(message: MessageAttributesType): boolean {
  return message.type === 'profile-change';
}

function getPropsForProfileChange(
  message: MessageAttributesType,
  { conversationSelector }: GetPropsForBubbleOptions
): ProfileChangeNotificationPropsType {
  const change = message.profileChange;
  const { changedId } = message;
  const changedContact = conversationSelector(changedId);

  if (!change) {
    throw new Error('getPropsForProfileChange: profileChange is undefined');
  }

  return {
    changedContact,
    change,
  } as ProfileChangeNotificationPropsType;
}

// Universal Timer Notification

// Note: smart, so props not generated here

export function isUniversalTimerNotification(
  message: MessageAttributesType
): boolean {
  return message.type === 'universal-timer-notification';
}

// Change Number Notification

export function isChangeNumberNotification(
  message: MessageAttributesType
): boolean {
  return message.type === 'change-number-notification';
}

function getPropsForChangeNumberNotification(
  message: MessageAttributesType,
  { conversationSelector }: GetPropsForBubbleOptions
): ChangeNumberNotificationProps {
  return {
    sender: conversationSelector(message.sourceUuid),
    timestamp: message.sent_at,
  };
}

// Chat Session Refreshed

export function isChatSessionRefreshed(
  message: MessageAttributesType
): boolean {
  return message.type === 'chat-session-refreshed';
}

// Note: props are null

// Delivery Issue

export function isDeliveryIssue(message: MessageAttributesType): boolean {
  return message.type === 'delivery-issue';
}

function getPropsForDeliveryIssue(
  message: MessageAttributesType,
  { conversationSelector }: GetPropsForBubbleOptions
): DeliveryIssuePropsType {
  const sender = conversationSelector(message.sourceUuid);
  const conversation = conversationSelector(message.conversationId);

  return {
    sender,
    inGroup: conversation.type === 'group',
  };
}

// Other utility functions

export function isTapToView(message: MessageAttributesType): boolean {
  // If a message is deleted for everyone, that overrides all other styling
  if (message.deletedForEveryone) {
    return false;
  }

  return Boolean(message.isViewOnce || message.messageTimer);
}

function createNonBreakingLastSeparator(text?: string): string {
  if (!text) {
    return '';
  }

  const nbsp = '\xa0';
  const regex = /(\S)( +)(\S+\s*)$/;
  return text.replace(regex, (_match, start, spaces, end) => {
    const newSpaces =
      end.length < 12
        ? reduce(spaces, accumulator => accumulator + nbsp, '')
        : spaces;
    return `${start}${newSpaces}${end}`;
  });
}

export function getMessagePropStatus(
  message: Pick<
    MessageAttributesType,
    'type' | 'errors' | 'sendStateByConversationId'
  >,
  ourConversationId: string
): LastMessageStatus | undefined {
  if (!isOutgoing(message)) {
    return undefined;
  }

  if (getLastChallengeError(message)) {
    return 'paused';
  }

  const { sendStateByConversationId = {} } = message;

  if (isMessageJustForMe(sendStateByConversationId, ourConversationId)) {
    const status =
      sendStateByConversationId[ourConversationId]?.status ??
      SendStatus.Pending;
    const sent = isSent(status);
    if (
      hasErrors(message) ||
      someSendStatus(sendStateByConversationId, isFailed)
    ) {
      return sent ? 'partial-sent' : 'error';
    }
    return sent ? 'viewed' : 'sending';
  }

  const sendStates = Object.values(
    omit(sendStateByConversationId, ourConversationId)
  );
  const highestSuccessfulStatus = sendStates.reduce(
    (result: SendStatus, { status }) => maxStatus(result, status),
    SendStatus.Pending
  );

  if (
    hasErrors(message) ||
    someSendStatus(sendStateByConversationId, isFailed)
  ) {
    return isSent(highestSuccessfulStatus) ? 'partial-sent' : 'error';
  }
  if (isViewed(highestSuccessfulStatus)) {
    return 'viewed';
  }
  if (isRead(highestSuccessfulStatus)) {
    return 'read';
  }
  if (isDelivered(highestSuccessfulStatus)) {
    return 'delivered';
  }
  if (isSent(highestSuccessfulStatus)) {
    return 'sent';
  }
  return 'sending';
}

export function getPropsForEmbeddedContact(
  message: MessageAttributesType,
  regionCode: string,
  accountSelector: (identifier?: string) => boolean
): EmbeddedContactType | undefined {
  const contacts = message.contact;
  if (!contacts || !contacts.length) {
    return undefined;
  }

  const firstContact = contacts[0];
  const numbers = firstContact?.number;
  const firstNumber = numbers && numbers[0] ? numbers[0].value : undefined;

  return embeddedContactSelector(firstContact, {
    regionCode,
    getAbsoluteAttachmentPath:
      window.Signal.Migrations.getAbsoluteAttachmentPath,
    firstNumber,
    isNumberOnSignal: accountSelector(firstNumber),
  });
}

export function getPropsForAttachment(
  attachment: AttachmentType
): AttachmentType | null {
  if (!attachment) {
    return null;
  }

  const { path, pending, size, screenshot, thumbnail } = attachment;

  return {
    ...attachment,
    fileSize: size ? filesize(size) : undefined,
    isVoiceMessage: isVoiceMessage(attachment),
    pending,
    url: path
      ? window.Signal.Migrations.getAbsoluteAttachmentPath(path)
      : undefined,
    screenshot: screenshot
      ? {
          ...screenshot,
          url: window.Signal.Migrations.getAbsoluteAttachmentPath(
            screenshot.path
          ),
        }
      : undefined,
    thumbnail: thumbnail
      ? {
          ...thumbnail,
          url: window.Signal.Migrations.getAbsoluteAttachmentPath(
            thumbnail.path
          ),
        }
      : undefined,
  };
}

function processQuoteAttachment(
  attachment: AttachmentType
): QuotedAttachmentType {
  const { thumbnail } = attachment;
  const path =
    thumbnail &&
    thumbnail.path &&
    window.Signal.Migrations.getAbsoluteAttachmentPath(thumbnail.path);
  const objectUrl = thumbnail && thumbnail.objectUrl;

  const thumbnailWithObjectUrl =
    (!path && !objectUrl) || !thumbnail
      ? undefined
      : { ...thumbnail, objectUrl: path || objectUrl };

  return {
    ...attachment,
    isVoiceMessage: isVoiceMessage(attachment),
    thumbnail: thumbnailWithObjectUrl,
  };
}

function canReplyOrReact(
  message: Pick<
    MessageAttributesType,
    'deletedForEveryone' | 'sendStateByConversationId' | 'type'
  >,
  ourConversationId: string,
  conversation: undefined | Readonly<ConversationType>
): boolean {
  const { deletedForEveryone, sendStateByConversationId } = message;

  if (!conversation) {
    return false;
  }

  if (conversation.isGroupV1AndDisabled) {
    return false;
  }

  if (isMissingRequiredProfileSharing(conversation)) {
    return false;
  }

  if (!conversation.acceptedMessageRequest) {
    return false;
  }

  if (deletedForEveryone) {
    return false;
  }

  if (isOutgoing(message)) {
    return (
      isMessageJustForMe(sendStateByConversationId, ourConversationId) ||
      someSendStatus(omit(sendStateByConversationId, ourConversationId), isSent)
    );
  }

  if (isIncoming(message)) {
    return true;
  }

  // Fail safe.
  return false;
}

export function canReply(
  message: Pick<
    MessageAttributesType,
    | 'conversationId'
    | 'deletedForEveryone'
    | 'sendStateByConversationId'
    | 'type'
  >,
  ourConversationId: string,
  conversationSelector: GetConversationByIdType
): boolean {
  const conversation = getConversation(message, conversationSelector);
  if (
    !conversation ||
    (conversation.announcementsOnly && !conversation.areWeAdmin)
  ) {
    return false;
  }
  return canReplyOrReact(message, ourConversationId, conversation);
}

export function canReact(
  message: Pick<
    MessageAttributesType,
    | 'conversationId'
    | 'deletedForEveryone'
    | 'sendStateByConversationId'
    | 'type'
  >,
  ourConversationId: string,
  conversationSelector: GetConversationByIdType
): boolean {
  const conversation = getConversation(message, conversationSelector);
  return canReplyOrReact(message, ourConversationId, conversation);
}

export function canDeleteForEveryone(
  message: Pick<
    MessageAttributesType,
    'type' | 'deletedForEveryone' | 'sent_at' | 'sendStateByConversationId'
  >
): boolean {
  return (
    // Is this a message I sent?
    isOutgoing(message) &&
    // Has the message already been deleted?
    !message.deletedForEveryone &&
    // Is it too old to delete?
    isMoreRecentThan(message.sent_at, THREE_HOURS) &&
    // Is it pending/sent to anyone?
    someSendStatus(
      message.sendStateByConversationId,
      sendStatus => sendStatus !== SendStatus.Failed
    )
  );
}

export function canDownload(
  message: MessageAttributesType,
  conversationSelector: GetConversationByIdType
): boolean {
  if (isOutgoing(message)) {
    return true;
  }

  const conversation = getConversation(message, conversationSelector);
  const isAccepted = Boolean(
    conversation && conversation.acceptedMessageRequest
  );
  if (!isAccepted) {
    return false;
  }

  // Ensure that all attachments are downloadable
  const { attachments } = message;
  if (attachments && attachments.length) {
    return attachments.every(attachment => Boolean(attachment.path));
  }

  return true;
}

export function getLastChallengeError(
  message: Pick<MessageAttributesType, 'errors'>
): ShallowChallengeError | undefined {
  const { errors } = message;
  if (!errors) {
    return undefined;
  }

  const challengeErrors = errors
    .filter((error): error is ShallowChallengeError => {
      return (
        error.name === 'SendMessageChallengeError' &&
        isNumber(error.retryAfter) &&
        isObject(error.data)
      );
    })
    .sort((a, b) => a.retryAfter - b.retryAfter);

  return challengeErrors.pop();
}