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Monorepo for Tangled forked from tangled.org/core
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Go
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import ( "bytes" "errors" "fmt" "io" "strings" "time" "unicode/utf8"
"github.com/bluesky-social/indigo/atproto/syntax" "tangled.org/core/api/tangled")
type String struct { Did syntax.DID Rkey string
Filename string Description string Contents string Created time.Time Edited *time.Time}
func (s *String) AtUri() syntax.ATURI { return syntax.ATURI(fmt.Sprintf("at://%s/%s/%s", s.Did, tangled.StringNSID, s.Rkey))}
func (s *String) AsRecord() tangled.String { return tangled.String{ Filename: s.Filename, Description: s.Description, Contents: s.Contents, CreatedAt: s.Created.Format(time.RFC3339), }}
var _ Validator = new(String)
func (s *String) Validate() error { var err error if utf8.RuneCountInString(s.Filename) > 140 { err = errors.Join(err, fmt.Errorf("filename too long")) }
if utf8.RuneCountInString(s.Description) > 280 { err = errors.Join(err, fmt.Errorf("description too long")) }
if len(s.Contents) == 0 { err = errors.Join(err, fmt.Errorf("contents is empty")) }
return err}
func StringFromRecord(did, rkey string, record tangled.String) String { created, err := time.Parse(time.RFC3339, record.CreatedAt) if err != nil { created = time.Now() } return String{ Did: syntax.DID(did), Rkey: rkey, Filename: record.Filename, Description: record.Description, Contents: record.Contents, Created: created, }}
type StringStats struct { LineCount uint64 ByteCount uint64}
func (s String) Stats() StringStats { lineCount, err := countLines(strings.NewReader(s.Contents)) if err != nil { // non-fatal // TODO: log this? }
return StringStats{ LineCount: uint64(lineCount), ByteCount: uint64(len(s.Contents)), }}
func countLines(r io.Reader) (int, error) { buf := make([]byte, 32*1024) bufLen := 0 count := 0 nl := []byte{'\n'}
for { c, err := r.Read(buf) if c > 0 { bufLen += c } count += bytes.Count(buf[:c], nl)
switch { case err == io.EOF: /* handle last line not having a newline at the end */ if bufLen >= 1 && buf[(bufLen-1)%(32*1024)] != '\n' { count++ } return count, nil case err != nil: return 0, err } }}