Init V4 community edition (#2265)

* Init V4 community edition

* Init V4 community edition

inventory/direct_link.go

@@ -0,0 +1,70 @@
+package inventory
+
+import (
+	"context"
+
+	"github.com/cloudreve/Cloudreve/v4/ent"
+	"github.com/cloudreve/Cloudreve/v4/ent/directlink"
+	"github.com/cloudreve/Cloudreve/v4/pkg/conf"
+	"github.com/cloudreve/Cloudreve/v4/pkg/hashid"
+)
+
+type (
+	DirectLinkClient interface {
+		TxOperator
+		// GetByNameID get direct link by name and id
+		GetByNameID(ctx context.Context, id int, name string) (*ent.DirectLink, error)
+		// GetByID get direct link by id
+		GetByID(ctx context.Context, id int) (*ent.DirectLink, error)
+	}
+	LoadDirectLinkFile struct{}
+)
+
+func NewDirectLinkClient(client *ent.Client, dbType conf.DBType, hasher hashid.Encoder) DirectLinkClient {
+	return &directLinkClient{
+		client:      client,
+		hasher:      hasher,
+		maxSQlParam: sqlParamLimit(dbType),
+	}
+}
+
+type directLinkClient struct {
+	maxSQlParam int
+	client      *ent.Client
+	hasher      hashid.Encoder
+}
+
+func (c *directLinkClient) SetClient(newClient *ent.Client) TxOperator {
+	return &directLinkClient{client: newClient, hasher: c.hasher, maxSQlParam: c.maxSQlParam}
+}
+
+func (c *directLinkClient) GetClient() *ent.Client {
+	return c.client
+}
+
+func (d *directLinkClient) GetByID(ctx context.Context, id int) (*ent.DirectLink, error) {
+	return withDirectLinkEagerLoading(ctx, d.client.DirectLink.Query().Where(directlink.ID(id))).
+		First(ctx)
+}
+
+func (d *directLinkClient) GetByNameID(ctx context.Context, id int, name string) (*ent.DirectLink, error) {
+	res, err := withDirectLinkEagerLoading(ctx, d.client.DirectLink.Query().Where(directlink.ID(id), directlink.Name(name))).
+		First(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	// Increase download counter
+	_, _ = d.client.DirectLink.Update().Where(directlink.ID(res.ID)).SetDownloads(res.Downloads + 1).Save(ctx)
+
+	return res, nil
+}
+
+func withDirectLinkEagerLoading(ctx context.Context, q *ent.DirectLinkQuery) *ent.DirectLinkQuery {
+	if v, ok := ctx.Value(LoadDirectLinkFile{}).(bool); ok && v {
+		q.WithFile(func(m *ent.FileQuery) {
+			withFileEagerLoading(ctx, m)
+		})
+	}
+	return q
+}