package memory

import (
	"strings"

	"git.yeij.top/AskaEth/Cyrene_v2/internal/runtime/model"
)

// messageText returns the concatenated plain-text payload of a message. Image
// parts are skipped; text parts are joined with a single space. It is the
// shared text view used by the working-memory summary and the manual extractor.
func messageText(m model.Message) string {
	var b strings.Builder
	for _, part := range m.Content {
		if part.Type != model.ContentTypeText {
			continue
		}
		if b.Len() > 0 {
			b.WriteByte(' ')
		}
		b.WriteString(part.Text)
	}
	return b.String()
}