import type { OpenGraphMetadata, Post, PostsState, PostOrderBlock, MessageHistory } from '@mattermost/types/posts';
import type { Reaction } from '@mattermost/types/reactions';
import type { UserProfile } from '@mattermost/types/users';
import type { RelationOneToOne, IDMappedObjects, RelationOneToMany } from '@mattermost/types/utilities';
import type { MMReduxAction } from 'mattermost-redux/action_types';
export declare function removeUnneededMetadata(post: Post): Post;
export declare function nextPostsReplies(state: { [x in Post["id"]]: number; } | undefined, action: MMReduxAction): {
    [x: string]: number;
};
export declare function handlePosts(state: IDMappedObjects<Post> | undefined, action: MMReduxAction): any;
export declare function handlePendingPosts(state: string[] | undefined, action: MMReduxAction): string[];
export declare function postsInChannel(state: Record<string, PostOrderBlock[]> | undefined, action: MMReduxAction, prevPosts: IDMappedObjects<Post>, nextPosts: Record<string, Post>): Record<string, PostOrderBlock[]>;
export declare function removeNonRecentEmptyPostBlocks(blocks: PostOrderBlock[]): PostOrderBlock[];
export declare function mergePostBlocks(blocks: PostOrderBlock[], posts: Record<string, Post>): PostOrderBlock[];
export declare function mergePostOrder(left: string[], right: string[], posts: Record<string, Post>): string[];
export declare function postsInThread(state: RelationOneToMany<Post, Post> | undefined, action: MMReduxAction, prevPosts: Record<string, Post>): RelationOneToMany<Post, Post>;
export declare function postEditHistory(state: Post[] | undefined, action: MMReduxAction): any;
export declare function reactions(state: RelationOneToOne<Post, Record<string, Reaction>> | undefined, action: MMReduxAction): RelationOneToOne<Post, Record<string, Reaction>>;
export declare function acknowledgements(state: RelationOneToOne<Post, Record<UserProfile["id"], number>> | undefined, action: MMReduxAction): any;
export declare function openGraph(state: RelationOneToOne<Post, Record<string, OpenGraphMetadata>> | undefined, action: MMReduxAction): any;
export declare const zeroStateLimitedViews: {
    threads: {};
    channels: {};
};
export declare function limitedViews(state: PostsState["limitedViews"] | undefined, action: MMReduxAction): PostsState['limitedViews'];
export default function reducer(state: Partial<PostsState> | undefined, action: MMReduxAction): Partial<PostsState> | {
    posts: any;
    postsReplies: {
        [x: string]: number;
    };
    pendingPostIds: string[];
    postsInChannel: Record<string, PostOrderBlock[]>;
    postsInThread: RelationOneToMany<Post, Post>;
    postEditHistory: any;
    currentFocusedPostId: any;
    reactions: RelationOneToOne<Post, Record<string, Reaction>>;
    openGraph: any;
    messagesHistory: Partial<MessageHistory> | {
        messages: string[] | undefined;
        index: Record<string, number>;
    };
    acknowledgements: any;
    limitedViews: {
        channels: Record<import("@mattermost/types/channels").Channel["id"], number>;
        threads: Record<Post["root_id"], number>;
    };
};