pstuifzand/ekster

package server

import (
    "p83.nl/go/ekster/pkg/microsub"
    "p83.nl/go/ekster/pkg/sse"
)

// NullBackend is the simplest possible backend
type NullBackend struct {
}

// ChannelsGetList gets no channels
func (b *NullBackend) ChannelsGetList() ([]microsub.Channel, error) {
    return []microsub.Channel{
        {UID: "0001", Name: "notifications", Unread: microsub.Unread{Type: microsub.UnreadBool, Unread: false}},
        {UID: "0000", Name: "default", Unread: microsub.Unread{Type: microsub.UnreadCount, UnreadCount: 0}},
    }, nil
}

// ChannelsCreate creates no channels
func (b *NullBackend) ChannelsCreate(name string) (microsub.Channel, error) {
    return microsub.Channel{
        UID:  "1234",
        Name: name,
    }, nil
}

// ChannelsUpdate updates no channels
func (b *NullBackend) ChannelsUpdate(uid, name string) (microsub.Channel, error) {
    return microsub.Channel{
        UID:  uid,
        Name: name,
    }, nil
}

// ChannelsDelete delets no channels
func (b *NullBackend) ChannelsDelete(uid string) error {
    return nil
}

// TimelineGet gets no timeline
func (b *NullBackend) TimelineGet(before, after, channel string) (microsub.Timeline, error) {
    return microsub.Timeline{
        Paging: microsub.Pagination{},
        Items:  []microsub.Item{},
    }, nil
}

// FollowGetList implements the follow list command
func (b *NullBackend) FollowGetList(uid string) ([]microsub.Feed, error) {
    return []microsub.Feed{
        {Name: "test", Type: "feed", URL: "https://example.com/"},
    }, nil
}

// FollowURL follows a new url
func (b *NullBackend) FollowURL(uid string, url string) (microsub.Feed, error) {
    return microsub.Feed{Type: "feed", URL: url}, nil
}

// UnfollowURL unfollows a url
func (b *NullBackend) UnfollowURL(uid string, url string) error {
    return nil
}

// Search search for a query and return an example list of feeds
func (b *NullBackend) Search(query string) ([]microsub.Feed, error) {
    return []microsub.Feed{
        {Type: "feed", URL: "https://example.com/", Name: "Example", Photo: "test.jpg", Description: "test"},
    }, nil
}

// ItemSearch returns a list of zero items
func (b *NullBackend) ItemSearch(channel, query string) ([]microsub.Item, error) {
    return []microsub.Item{}, nil
}

// PreviewURL shows an empty feed
func (b *NullBackend) PreviewURL(url string) (microsub.Timeline, error) {
    return microsub.Timeline{
        Paging: microsub.Pagination{},
        Items:  []microsub.Item{},
    }, nil
}

// MarkRead marks no items as read
func (b *NullBackend) MarkRead(channel string, uids []string) error {
    return nil
}

// Events returns a closed channel.
func (b *NullBackend) Events() (chan sse.Message, error) {
    ch := make(chan sse.Message)
    close(ch)
    return ch, nil
}