package governance

import (
	"strings"
)

// Development headings cannot replace the formal release baseline.
func ExtractDevelopmentNotes(changelog, version string) string {
	return developmentNotes(changelog, version, "")
}
func ExtractDevelopmentNotesForCommit(changelog, version, sha string) string {
	return developmentNotes(changelog, version, sha)
}
func developmentNotes(changelog, version, sha string) string {
	if !SemverValid(version) {
		return ""
	}
	lines := strings.Split(changelog, "\n")
	prefix := "## 开发快照 snapshot/v" + version + " - "
	for i, line := range lines {
		if strings.HasPrefix(line, prefix) {
			end := len(lines)
			for j := i + 1; j < len(lines); j++ {
				if strings.HasPrefix(lines[j], "## ") {
					end = j
					break
				}
			}
			body := strings.TrimSpace(strings.Join(lines[i+1:end], "\n"))
			if sha == "" {
				return body
			}
			for _, field := range lines[i+1 : end] {
				if strings.TrimSpace(field) == "目标提交："+sha {
					return body
				}
			}
		}
	}
	return ""
}