feat: add server side apps pagination

Signed-off-by: yang.xiao <[email protected]>

Author: muma378

assets/swagger.json

@@ -73,6 +73,7 @@ require (
 	github.com/r3labs/diff/v3 v3.0.1
 	github.com/redis/go-redis/v9 v9.7.3
 	github.com/robfig/cron/v3 v3.0.2-0.20210106135023-bc59245fe10e
+	github.com/samber/lo v1.49.1
 	github.com/sirupsen/logrus v1.9.3
 	github.com/skratchdot/open-golang v0.0.0-20200116055534-eef842397966
 	github.com/soheilhy/cmux v0.1.5

go.mod

@@ -731,6 +731,8 @@ github.com/rs/cors v1.11.1 h1:eU3gRzXLRK57F5rKMGMZURNdIG4EoAmX8k94r9wXWHA=
 github.com/rs/cors v1.11.1/go.mod h1:XyqrcTp5zjWr1wsJ8PIRZssZ8b/WMcMf71DJnit4EMU=
 github.com/russross/blackfriday/v2 v2.1.0 h1:JIOH55/0cWyOuilr9/qlrm0BSXldqnqwMsf35Ld67mk=
 github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
+github.com/samber/lo v1.49.1 h1:4BIFyVfuQSEpluc7Fua+j1NolZHiEHEpaSEKdsH0tew=
+github.com/samber/lo v1.49.1/go.mod h1:dO6KHFzUKXgP8LDhU0oI8d2hekjXnGOu0DB8Jecxd6o=
 github.com/sergi/go-diff v1.3.2-0.20230802210424-5b0b94c5c0d3 h1:n661drycOFuPLCN3Uc8sB6B/s6Z4t2xvBgU1htSHuq8=
 github.com/sergi/go-diff v1.3.2-0.20230802210424-5b0b94c5c0d3/go.mod h1:A0bzQcvG0E7Rwjx0REVgAGH58e96+X0MeOfepqsbeW4=
 github.com/shopspring/decimal v1.4.0 h1:bxl37RwXBklmTi0C79JfXCEBD1cqqHt0bbgBAGFp81k=

go.sum

@@ -1693,7 +1693,31 @@ type ApplicationWatchEvent struct {
 type ApplicationList struct {
 	metav1.TypeMeta `json:",inline"`
 	metav1.ListMeta `json:"metadata" protobuf:"bytes,1,opt,name=metadata"`
-	Items           []Application `json:"items" protobuf:"bytes,2,rep,name=items"`
+	Items           []Application        `json:"items" protobuf:"bytes,2,rep,name=items"`
+	Stats           ApplicationListStats `json:"stats,omitempty" protobuf:"bytes,3,opt,name=stats"`
+}
+
+type ApplicationLabelStats struct {
+	Key    string   `json:"key" protobuf:"bytes,1,opt,name=key"`
+	Values []string `json:"values" protobuf:"bytes,2,opt,name=values"`
+}
+
+// ApplicationListStats holds additional information about the list of applications
+type ApplicationListStats struct {
+	Total                int64                             `json:"total" protobuf:"bytes,1,opt,name=total"`
+	TotalBySyncStatus    map[SyncStatusCode]int64          `json:"totalBySyncStatus,omitempty" protobuf:"bytes,2,opt,name=totalBySyncStatus"`
+	TotalByHealthStatus  map[health.HealthStatusCode]int64 `json:"totalByHealthStatus,omitempty" protobuf:"bytes,3,opt,name=totalByHealthStatus"`
+	AutoSyncEnabledCount int64                             `json:"autoSyncEnabledCount" protobuf:"bytes,4,opt,name=autoSyncEnabledCount"`
+	Destinations         []ApplicationDestination          `json:"destinations" protobuf:"bytes,5,opt,name=destinations"`
+	Namespaces           []string                          `json:"namespaces" protobuf:"bytes,6,opt,name=namespaces"`
+	Labels               []ApplicationLabelStats           `json:"labels,omitempty" protobuf:"bytes,7,opt,name=labels"`
+}
+
+func NewApplicationListStats() ApplicationListStats {
+	return ApplicationListStats{
+		TotalBySyncStatus:   make(map[SyncStatusCode]int64),
+		TotalByHealthStatus: make(map[health.HealthStatusCode]int64),
+	}
 }
 
 // ComponentParameter contains information about component parameter value