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|
package iterator
import (
"context"
"github.com/xanzy/go-gitlab"
)
type noteIterator struct {
issue int
page int
lastPage bool
index int
cache []*gitlab.Note
}
func newNoteIterator() *noteIterator {
in := ¬eIterator{}
in.Reset(-1)
return in
}
func (in *noteIterator) Next(ctx context.Context, conf config) (bool, error) {
// first query
if in.cache == nil {
return in.getNext(ctx, conf)
}
// move cursor index
if in.index < len(in.cache)-1 {
in.index++
return true, nil
}
return in.getNext(ctx, conf)
}
func (in *noteIterator) Value() *gitlab.Note {
return in.cache[in.index]
}
func (in *noteIterator) getNext(ctx context.Context, conf config) (bool, error) {
if in.lastPage {
return false, nil
}
ctx, cancel := context.WithTimeout(ctx, conf.timeout)
defer cancel()
notes, resp, err := conf.gc.Notes.ListIssueNotes(
conf.project,
in.issue,
&gitlab.ListIssueNotesOptions{
ListOptions: gitlab.ListOptions{
Page: in.page,
PerPage: conf.capacity,
},
Sort: gitlab.String("asc"),
OrderBy: gitlab.String("created_at"),
},
gitlab.WithContext(ctx),
)
if err != nil {
in.Reset(-1)
return false, err
}
if resp.TotalPages == in.page {
in.lastPage = true
}
if len(notes) == 0 {
return false, nil
}
in.cache = notes
in.index = 0
in.page++
return true, nil
}
func (in *noteIterator) Reset(issue int) {
in.issue = issue
in.index = -1
in.page = 1
in.lastPage = false
in.cache = nil
}
|
