init commit

internal/srt/types.go

@@ -0,0 +1,39 @@
+package srt
+
+import "time"
+
+// Cue represents a single subtitle entry
+type Cue struct {
+	Index      int
+	Start      time.Duration
+	End        time.Duration
+	Text       string
+	LineNumber int // Line number in the SRT file (1-indexed)
+}
+
+// Transcript represents a complete subtitle file
+type Transcript struct {
+	Cues     []Cue
+	FilePath string
+	IsTemp   bool
+}
+
+// CueAt returns the cue that contains the given time position
+func (t *Transcript) CueAt(pos time.Duration) *Cue {
+	for i := range t.Cues {
+		if pos >= t.Cues[i].Start && pos < t.Cues[i].End {
+			return &t.Cues[i]
+		}
+	}
+	return nil
+}
+
+// CueIndexAt returns the index of the cue at the given position, or -1
+func (t *Transcript) CueIndexAt(pos time.Duration) int {
+	for i := range t.Cues {
+		if pos >= t.Cues[i].Start && pos < t.Cues[i].End {
+			return i
+		}
+	}
+	return -1
+}