65 lines
1.4 KiB
Go
65 lines
1.4 KiB
Go
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package gql_ev
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import (
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"context"
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"github.com/sour-is/ev/pkg/es/driver"
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"github.com/sour-is/ev/pkg/es/service"
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)
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// This file will not be regenerated automatically.
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//
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// It serves as dependency injection for your app, add any dependencies you require here.
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type Resolver struct {
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es driver.EventStore
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}
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func New(es driver.EventStore) *Resolver {
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return &Resolver{es}
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}
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// Events is the resolver for the events field.
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func (r *Resolver) Events(ctx context.Context, streamID string, paging *PageInput) (*Connection, error) {
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lis, err := r.es.Read(ctx, streamID, paging.GetIdx(0), paging.GetCount(30))
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if err != nil {
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return nil, err
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}
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edges := make([]Edge, 0, len(lis))
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for i := range lis {
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e := lis[i]
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m := e.EventMeta()
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post, ok := e.(*service.PostEvent)
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if !ok {
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continue
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}
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edges = append(edges, Event{
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ID: lis[i].EventMeta().EventID.String(),
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Payload: string(post.Payload),
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Tags: post.Tags,
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Meta: &m,
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})
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}
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var first, last uint64
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if first, err = r.es.FirstIndex(ctx, streamID); err != nil {
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return nil, err
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}
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if last, err = r.es.LastIndex(ctx, streamID); err != nil {
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return nil, err
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}
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return &Connection{
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Paging: &PageInfo{
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Next: lis.Last().EventMeta().Position < last,
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Prev: lis.First().EventMeta().Position > first,
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Begin: lis.First().EventMeta().Position,
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End: lis.Last().EventMeta().Position,
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},
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Edges: edges,
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}, nil
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}
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