chore: init

internal/utils/mapper.go

@@ -0,0 +1,52 @@
+package utils
+
+import "strings"
+
+func MapSlice[T any, V any](obj []T, transform func(T) V) []V {
+	vs := make([]V, 0, len(obj))
+
+	for _, o := range obj {
+		vs = append(vs, transform(o))
+	}
+
+	return vs
+}
+
+type CombinedError struct {
+	Errors []error
+}
+
+func (e CombinedError) Error() string {
+	sb := strings.Builder{}
+
+	for i, err := range e.Errors {
+		sb.WriteString(err.Error())
+
+		if i < len(e.Errors)-1 {
+			sb.WriteString("\n")
+		}
+	}
+
+	return sb.String()
+}
+
+func MapErrorSlice[T any, V any](obj []T, transform func(T) (V, error)) ([]V, error) {
+	vs := make([]V, 0, len(obj))
+	errs := make([]error, 0, len(obj))
+
+	for _, o := range obj {
+		v, err := transform(o)
+		if err != nil {
+			errs = append(errs, err)
+			continue
+		}
+
+		vs = append(vs, v)
+	}
+
+	if len(errs) > 0 {
+		return nil, CombinedError{Errors: errs}
+	}
+
+	return vs, nil
+}

internal/utils/urls.go

@@ -0,0 +1,75 @@
+package utils
+
+import (
+	"fmt"
+	"net/url"
+
+	"github.com/google/uuid"
+	"github.com/lysand-org/versia-go/config"
+	"github.com/lysand-org/versia-go/pkg/lysand"
+)
+
+var dicebearURL = &url.URL{
+	Scheme: "https",
+	Host:   "api.dicebear.com",
+	Path:   "9.x/adventurer/svg",
+}
+
+func UserAPIURL(uuid uuid.UUID) *lysand.URL {
+	newPath := &url.URL{Path: fmt.Sprintf("/api/users/%s/", uuid.String())}
+	return lysand.URLFromStd(config.C.PublicAddress.ResolveReference(newPath))
+}
+
+func DefaultAvatarURL(uuid uuid.UUID) *lysand.URL {
+	u := &url.URL{}
+	q := u.Query()
+	q.Set("seed", uuid.String())
+	u.RawQuery = q.Encode()
+
+	return lysand.URLFromStd(dicebearURL.ResolveReference(u))
+}
+
+func UserInboxAPIURL(uuid uuid.UUID) *lysand.URL {
+	newPath := &url.URL{Path: "./inbox"}
+	return UserAPIURL(uuid).ResolveReference(newPath)
+}
+
+func UserOutboxAPIURL(uuid uuid.UUID) *lysand.URL {
+	newPath := &url.URL{Path: "./outbox"}
+	return UserAPIURL(uuid).ResolveReference(newPath)
+}
+
+func UserFollowersAPIURL(uuid uuid.UUID) *lysand.URL {
+	newPath := &url.URL{Path: "./followers"}
+	return UserAPIURL(uuid).ResolveReference(newPath)
+}
+
+func UserFollowingAPIURL(uuid uuid.UUID) *lysand.URL {
+	newPath := &url.URL{Path: "./following"}
+	return UserAPIURL(uuid).ResolveReference(newPath)
+}
+
+func UserFeaturedAPIURL(uuid uuid.UUID) *lysand.URL {
+	newPath := &url.URL{Path: "./featured"}
+	return UserAPIURL(uuid).ResolveReference(newPath)
+}
+
+func UserLikesAPIURL(uuid uuid.UUID) *lysand.URL {
+	newPath := &url.URL{Path: "./likes"}
+	return UserAPIURL(uuid).ResolveReference(newPath)
+}
+
+func UserDislikesAPIURL(uuid uuid.UUID) *lysand.URL {
+	newPath := &url.URL{Path: "./dislikes"}
+	return UserAPIURL(uuid).ResolveReference(newPath)
+}
+
+func FollowAPIURL(uuid uuid.UUID) *lysand.URL {
+	newPath := &url.URL{Path: fmt.Sprintf("/api/follows/%s/", uuid.String())}
+	return lysand.URLFromStd(config.C.PublicAddress.ResolveReference(newPath))
+}
+
+func NoteAPIURL(uuid uuid.UUID) *lysand.URL {
+	newPath := &url.URL{Path: fmt.Sprintf("/api/notes/%s/", uuid.String())}
+	return lysand.URLFromStd(config.C.PublicAddress.ResolveReference(newPath))
+}