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|
package processor
import (
"fmt"
"io"
"os"
"path/filepath"
"time"
"codeberg.org/snonux/snonux/internal/post"
)
type audioBuilder struct{}
func (audioBuilder) Plan(srcPath string, ext string) (postPlan, error) {
plan := postPlan{srcPath: srcPath, ext: ext}
if err := validateAudio(srcPath); err != nil {
return postPlan{}, err
}
return plan, nil
}
func (audioBuilder) Commit(plan postPlan, postDir string, id string, now time.Time) (*post.Post, []string, error) {
outName := filepath.Base(plan.srcPath)
dst := filepath.Join(postDir, outName)
if err := copyFile(plan.srcPath, dst); err != nil {
return nil, nil, err
}
src := fmt.Sprintf("posts/%s/%s", id, outName)
html := fmt.Sprintf(
`<audio controls class="post-audio"><source src="%s" type="audio/mpeg">Your browser does not support audio.</audio>`,
src,
)
p := &post.Post{
ID: id,
Timestamp: now,
PostType: post.TypeAudio,
Content: html,
Assets: []string{outName},
}
return p, nil, nil
}
func init() {
register(".mp3", audioBuilder{})
}
// validateAudio confirms the audio source file exists and is readable.
func validateAudio(srcPath string) error {
f, err := os.Open(srcPath)
if err != nil {
return fmt.Errorf("open audio %s: %w", srcPath, err)
}
return f.Close()
}
// copyFile copies the file at src to dst, creating dst if it does not exist.
func copyFile(src, dst string) error {
in, err := os.Open(src)
if err != nil {
return fmt.Errorf("open source %s: %w", src, err)
}
defer in.Close()
out, err := os.Create(dst)
if err != nil {
return fmt.Errorf("create dest %s: %w", dst, err)
}
defer out.Close()
if _, err := io.Copy(out, in); err != nil {
return fmt.Errorf("copy %s → %s: %w", src, dst, err)
}
return nil
}
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