feat: datasource for gno.land/r/leon/hof integration with Gno.me

examples/gno.land/r/leon/hof/datasource.gno

@@ -0,0 +1,64 @@
+package hof
+
+import (
+	"errors"
+
+	"gno.land/p/demo/seqid"
+	"gno.land/p/demo/ufmt"
+	"gno.land/p/gnome/datasource"
+)
+
+type Datasource struct{}
+
+func (ds Datasource) GetRecords(offset, _ int, _ string) datasource.RecordIter {
+	return &iterator{index: offset}
+}
+
+func (ds Datasource) GetContent(rawID string, fn func(content string)) error {
+	id, err := seqid.FromString(rawID)
+	if err != nil {
+		return err
+	}
+
+	v, ok := exhibition.itemsSorted.Get(id.String())
+	if !ok {
+		return errors.New("realm submission not found")
+	}
+
+	content := ufmt.Sprintf("# Submission #%d\n\n", int(id))
+	content += v.(*Item).Render(false)
+
+	fn(content)
+	return nil
+}
+
+type record struct {
+	item *Item
+}
+
+func (r record) ID() string     { return r.item.id.String() }
+func (r record) Title() string  { return r.item.pkgpath }
+func (r record) Tags() []string { return nil }
+
+func (r record) Details() string {
+	return ufmt.Sprintf("Votes: ⏶ %d - ⏷ %d", r.item.upvote.Size(), r.item.downvote.Size())
+}
+
+type iterator struct {
+	index  int
+	record *record
+}
+
+func (it iterator) Record() datasource.Record { return it.record }
+func (it iterator) Err() error                { return nil }
+
+func (it *iterator) Next() bool {
+	if it.index >= exhibition.itemsSorted.Size() {
+		return false
+	}
+
+	_, v := exhibition.itemsSorted.GetByIndex(it.index)
+	it.record = &record{v.(*Item)}
+	it.index++
+	return true
+}