Home timeline (#28)

* v. basic implementation of home timeline

* Go fmt ./...

internal/message/timelineprocess.go

@@ -0,0 +1,67 @@
+package message
+
+import (
+	"fmt"
+
+	apimodel "github.com/superseriousbusiness/gotosocial/internal/api/model"
+	"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
+	"github.com/superseriousbusiness/gotosocial/internal/oauth"
+)
+
+func (p *processor) HomeTimelineGet(authed *oauth.Auth, maxID string, sinceID string, minID string, limit int, local bool) ([]apimodel.Status, ErrorWithCode) {
+	statuses, err := p.db.GetHomeTimelineForAccount(authed.Account.ID, maxID, sinceID, minID, limit, local)
+	if err != nil {
+		return nil, NewErrorInternalError(err)
+	}
+
+	apiStatuses := []apimodel.Status{}
+	for _, s := range statuses {
+		targetAccount := &gtsmodel.Account{}
+		if err := p.db.GetByID(s.AccountID, targetAccount); err != nil {
+			return nil, NewErrorInternalError(fmt.Errorf("error getting status author: %s", err))
+		}
+
+		relevantAccounts, err := p.db.PullRelevantAccountsFromStatus(s)
+		if err != nil {
+			return nil, NewErrorInternalError(fmt.Errorf("error getting relevant statuses: %s", err))
+		}
+
+		visible, err := p.db.StatusVisible(s, targetAccount, authed.Account, relevantAccounts)
+		if err != nil {
+			return nil, NewErrorInternalError(fmt.Errorf("error checking status visibility: %s", err))
+		}
+		if !visible {
+			continue
+		}
+
+		var boostedStatus *gtsmodel.Status
+		if s.BoostOfID != "" {
+			bs := &gtsmodel.Status{}
+			if err := p.db.GetByID(s.BoostOfID, bs); err != nil {
+				return nil, NewErrorInternalError(fmt.Errorf("error getting boosted status: %s", err))
+			}
+			boostedRelevantAccounts, err := p.db.PullRelevantAccountsFromStatus(bs)
+			if err != nil {
+				return nil, NewErrorInternalError(fmt.Errorf("error getting relevant accounts from boosted status: %s", err))
+			}
+
+			boostedVisible, err := p.db.StatusVisible(bs, relevantAccounts.BoostedAccount, authed.Account, boostedRelevantAccounts)
+			if err != nil {
+				return nil, NewErrorInternalError(fmt.Errorf("error checking boosted status visibility: %s", err))
+			}
+
+			if boostedVisible {
+				boostedStatus = bs
+			}
+		}
+
+		apiStatus, err := p.tc.StatusToMasto(s, targetAccount, authed.Account, relevantAccounts.BoostedAccount, relevantAccounts.ReplyToAccount, boostedStatus)
+		if err != nil {
+			return nil, NewErrorInternalError(fmt.Errorf("error converting status to masto: %s", err))
+		}
+
+		apiStatuses = append(apiStatuses, *apiStatus)
+	}
+
+	return apiStatuses, nil
+}