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package posse
import (
"context"
"fmt"
"log/slog"
"net/http"
"net/url"
"strings"
bsky "github.com/danrusei/gobot-bsky"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promauto"
"github.com/twitchtv/twirp"
"golang.org/x/sync/errgroup"
"google.golang.org/protobuf/types/known/emptypb"
"within.website/x/cmd/mi/models"
"within.website/x/proto/external/jsonfeed"
"within.website/x/proto/mimi/announce"
"within.website/x/web/mastodon"
)
var (
possePosts = promauto.NewGaugeVec(prometheus.GaugeOpts{
Name: "mi_posse_posts",
Help: "Number of posts sent to social networks.",
}, []string{"service"})
posseErrors = promauto.NewCounterVec(prometheus.CounterOpts{
Name: "mi_posse_errors",
Help: "Number of errors encountered while sending posts to social networks.",
}, []string{"service"})
)
type Announcer struct {
dao *models.DAO
mastodon *mastodon.Client
mimi announce.Announce
cfg Config
announce.UnimplementedAnnounceServer
}
type Config struct {
BlueskyAuthkey string
BlueskyHandle string
BlueskyPDS string
MastodonToken string
MastodonURL string
MimiAnnounceURL string
}
func New(ctx context.Context, dao *models.DAO, cfg Config) (*Announcer, error) {
mas, err := mastodon.Authenticated("mi_irl", "https://xeiaso.net", cfg.MastodonURL, cfg.MastodonToken)
if err != nil {
return nil, fmt.Errorf("failed to authenticate to mastodon: %w", err)
}
return &Announcer{
dao: dao,
mastodon: mas,
mimi: announce.NewAnnounceProtobufClient(cfg.MimiAnnounceURL, &http.Client{}),
cfg: cfg,
}, nil
}
func (a *Announcer) Announce(ctx context.Context, it *jsonfeed.Item) (*emptypb.Empty, error) {
u, err := url.Parse(it.GetUrl())
if err != nil {
slog.Error("[unexpected] can't parse URL", "err", err, "url", it.GetUrl())
return &emptypb.Empty{}, nil
}
if u.Host != "xeiaso.net" {
slog.Info("skipping announcement", "url", it.GetUrl(), "reason", "non-prod URLs")
return &emptypb.Empty{}, nil
}
if has, err := a.dao.HasBlogpost(ctx, it.GetUrl()); err != nil {
return nil, err
} else if has {
return &emptypb.Empty{}, nil
}
var sb strings.Builder
fmt.Fprintf(&sb, "%s\n\n%s", it.GetTitle(), it.GetUrl())
if _, err := a.dao.InsertBlogpost(ctx, it); err != nil {
return nil, twirp.InternalErrorWith(err)
}
// announce to bluesky and mastodon
g, gCtx := errgroup.WithContext(ctx)
g.Go(func() error {
post, err := a.mastodon.CreateStatus(gCtx, mastodon.CreateStatusParams{
Status: sb.String() + "?utm_campaign=mi_irl&utm_medium=social&utm_source=mastodon",
})
if err != nil {
posseErrors.WithLabelValues("mastodon").Inc()
slog.Error("failed to announce to mastodon", "err", err)
return err
}
possePosts.WithLabelValues("mastodon").Inc()
slog.Info("posted to mastodon", "blogpost_url", it.GetUrl(), "mastodon_url", post.URL)
return nil
})
g.Go(func() error {
bluesky := bsky.NewAgent(gCtx, a.cfg.BlueskyPDS, a.cfg.BlueskyHandle, a.cfg.BlueskyAuthkey)
if err := bluesky.Connect(gCtx); err != nil {
posseErrors.WithLabelValues("bluesky").Inc()
slog.Error("failed to connect to bluesky", "err", err)
return err
}
if err := bluesky.Connect(gCtx); err != nil {
posseErrors.WithLabelValues("bluesky").Inc()
slog.Error("failed to connect to bluesky", "err", err)
return err
}
u, err := url.Parse(it.GetUrl())
if err != nil {
posseErrors.WithLabelValues("bluesky").Inc()
slog.Error("failed to parse url", "err", err)
return err
}
q := u.Query()
q.Set("utm_campaign", "mi_irl")
q.Set("utm_medium", "social")
q.Set("utm_source", "bluesky")
u.RawQuery = q.Encode()
post, err := bsky.NewPostBuilder(sb.String()).
WithExternalLink(it.GetTitle(), *u, "The newest post on Xe Iaso's blog").
WithFacet(bsky.Facet_Link, it.GetUrl(), it.GetUrl()).
Build()
if err != nil {
posseErrors.WithLabelValues("bluesky").Inc()
slog.Error("failed to build bluesky post", "err", err)
return err
}
cid, uri, err := bluesky.PostToFeed(ctx, post)
if err != nil {
posseErrors.WithLabelValues("bluesky").Inc()
slog.Error("failed to post to bluesky", "err", err)
return err
}
possePosts.WithLabelValues("bluesky").Inc()
slog.Info("posted to bluesky", "blogpost_url", it.GetUrl(), "bluesky_cid", cid, "bluesky_uri", uri)
return nil
})
g.Go(func() error {
if _, err := a.mimi.Announce(gCtx, it); err != nil {
slog.Error("failed to announce to mimi", "err", err)
return nil
}
possePosts.WithLabelValues("irc").Inc()
return nil
})
if err := g.Wait(); err != nil {
return nil, err
}
return &emptypb.Empty{}, nil
}
|
