Refactor directory structure

.gitmodules

@@ -1,5 +1,5 @@
 [submodule "frontend"]
-	path = frontend
+	path = web/frontend
 	url = git@github.com:ClusterCockpit/cc-frontend.git
     branch = main
     update = merge

cmd/cc-backend/main.go

@@ -22,26 +22,25 @@ import (
 
 	"github.com/99designs/gqlgen/graphql/handler"
 	"github.com/99designs/gqlgen/graphql/playground"
-	"github.com/ClusterCockpit/cc-backend/api"
-	"github.com/ClusterCockpit/cc-backend/auth"
-	"github.com/ClusterCockpit/cc-backend/config"
-	"github.com/ClusterCockpit/cc-backend/graph"
-	"github.com/ClusterCockpit/cc-backend/graph/generated"
-	"github.com/ClusterCockpit/cc-backend/log"
-	"github.com/ClusterCockpit/cc-backend/metricdata"
-	"github.com/ClusterCockpit/cc-backend/repository"
-	"github.com/ClusterCockpit/cc-backend/templates"
+	"github.com/ClusterCockpit/cc-backend/internal/api"
+	"github.com/ClusterCockpit/cc-backend/internal/auth"
+	"github.com/ClusterCockpit/cc-backend/internal/config"
+	"github.com/ClusterCockpit/cc-backend/internal/graph"
+	"github.com/ClusterCockpit/cc-backend/internal/graph/generated"
+	"github.com/ClusterCockpit/cc-backend/internal/metricdata"
+	"github.com/ClusterCockpit/cc-backend/internal/repository"
+	"github.com/ClusterCockpit/cc-backend/internal/routerConfig"
+	"github.com/ClusterCockpit/cc-backend/internal/runtimeEnv"
+	"github.com/ClusterCockpit/cc-backend/internal/templates"
+	"github.com/ClusterCockpit/cc-backend/pkg/log"
 	"github.com/google/gops/agent"
 	"github.com/gorilla/handlers"
 	"github.com/gorilla/mux"
-	"github.com/jmoiron/sqlx"
 
 	_ "github.com/go-sql-driver/mysql"
 	_ "github.com/mattn/go-sqlite3"
 )
 
-var jobRepo *repository.JobRepository
-
 // Format of the configurartion (file). See below for the defaults.
 type ProgramConfig struct {
 	// Address where the http (or https) server will listen on (for example: 'localhost:80').
@@ -152,7 +151,7 @@ func main() {
 		}
 	}
 
-	if err := loadEnv("./.env"); err != nil && !os.IsNotExist(err) {
+	if err := runtimeEnv.LoadEnv("./.env"); err != nil && !os.IsNotExist(err) {
 		log.Fatalf("parsing './.env' file failed: %s", err.Error())
 	}
 
@@ -178,28 +177,8 @@ func main() {
 	}
 
 	var err error
-	var db *sqlx.DB
-	if programConfig.DBDriver == "sqlite3" {
-		db, err = sqlx.Open("sqlite3", fmt.Sprintf("%s?_foreign_keys=on", programConfig.DB))
-		if err != nil {
-			log.Fatal(err)
-		}
-
-		// sqlite does not multithread. Having more than one connection open would just mean
-		// waiting for locks.
-		db.SetMaxOpenConns(1)
-	} else if programConfig.DBDriver == "mysql" {
-		db, err = sqlx.Open("mysql", fmt.Sprintf("%s?multiStatements=true", programConfig.DB))
-		if err != nil {
-			log.Fatal(err)
-		}
-
-		db.SetConnMaxLifetime(time.Minute * 3)
-		db.SetMaxOpenConns(10)
-		db.SetMaxIdleConns(10)
-	} else {
-		log.Fatalf("unsupported database driver: %s", programConfig.DBDriver)
-	}
+	repository.Connect(programConfig.DBDriver, programConfig.DB)
+	db := repository.GetConnection()
 
 	// Initialize sub-modules and handle all command line flags.
 	// The order here is important! For example, the metricdata package
@@ -215,7 +194,7 @@ func main() {
 			authentication.JwtMaxAge = d
 		}
 
-		if err := authentication.Init(db, programConfig.LdapConfig); err != nil {
+		if err := authentication.Init(db.DB, programConfig.LdapConfig); err != nil {
 			log.Fatal(err)
 		}
 
@@ -257,7 +236,7 @@ func main() {
 		log.Fatal("arguments --add-user and --del-user can only be used if authentication is enabled")
 	}
 
-	if err := config.Init(db, !programConfig.DisableAuthentication, programConfig.UiDefaults, programConfig.JobArchive); err != nil {
+	if err := config.Init(db.DB, !programConfig.DisableAuthentication, programConfig.UiDefaults, programConfig.JobArchive); err != nil {
 		log.Fatal(err)
 	}
 
@@ -266,15 +245,12 @@ func main() {
 	}
 
 	if flagReinitDB {
-		if err := repository.InitDB(db, programConfig.JobArchive); err != nil {
+		if err := repository.InitDB(db.DB, programConfig.JobArchive); err != nil {
 			log.Fatal(err)
 		}
 	}
 
-	jobRepo = &repository.JobRepository{DB: db}
-	if err := jobRepo.Init(); err != nil {
-		log.Fatal(err)
-	}
+	jobRepo := repository.GetRepository()
 
 	if flagImportJob != "" {
 		if err := jobRepo.HandleImportFlag(flagImportJob); err != nil {
@@ -288,7 +264,7 @@ func main() {
 
 	// Setup the http.Handler/Router used by the server
 
-	resolver := &graph.Resolver{DB: db, Repo: jobRepo}
+	resolver := &graph.Resolver{DB: db.DB, Repo: jobRepo}
 	graphQLEndpoint := handler.NewDefaultServer(generated.NewExecutableSchema(generated.Config{Resolvers: resolver}))
 	if os.Getenv("DEBUG") != "1" {
 		// Having this handler means that a error message is returned via GraphQL instead of the connection simply beeing closed.
@@ -394,7 +370,7 @@ func main() {
 	})
 
 	// Mount all /monitoring/... and /api/... routes.
-	setupRoutes(secured, routes)
+	routerConfig.SetupRoutes(secured)
 	api.MountRoutes(secured)
 
 	r.PathPrefix("/").Handler(http.FileServer(http.Dir(programConfig.StaticFiles)))
@@ -461,7 +437,7 @@ func main() {
 	// Because this program will want to bind to a privileged port (like 80), the listener must
 	// be established first, then the user can be changed, and after that,
 	// the actuall http server can be started.
-	if err := dropPrivileges(); err != nil {
+	if err := runtimeEnv.DropPrivileges(programConfig.Group, programConfig.User); err != nil {
 		log.Fatalf("error while changing user: %s", err.Error())
 	}
 
@@ -479,7 +455,7 @@ func main() {
 	go func() {
 		defer wg.Done()
 		<-sigs
-		systemdNotifiy(false, "shutting down")
+		runtimeEnv.SystemdNotifiy(false, "shutting down")
 
 		// First shut down the server gracefully (waiting for all ongoing requests)
 		server.Shutdown(context.Background())
@@ -503,7 +479,7 @@ func main() {
 	if os.Getenv("GOGC") == "" {
 		debug.SetGCPercent(25)
 	}
-	systemdNotifiy(true, "running")
+	runtimeEnv.SystemdNotifiy(true, "running")
 	wg.Wait()
 	log.Print("Gracefull shutdown completed!")
 }

frontend

@@ -1 +1 @@
-Subproject commit 94ef11aa9fc3c194f1df497e3e06c60a7125883d
+Subproject commit 4d698c519a56dd411dde7001beb0b73eb60157b9

gqlgen.yml

@@ -1,10 +1,10 @@
 # Where are all the schema files located? globs are supported eg  src/**/*.graphqls
 schema:
-  - graph/*.graphqls
+  - api/*.graphqls
 
 # Where should the generated server code go?
 exec:
-  filename: graph/generated/generated.go
+  filename: internal/graph/generated/generated.go
   package: generated
 
 # Uncomment to enable federation
@@ -14,7 +14,7 @@ exec:
 
 # Where should any generated models go?
 model:
-  filename: graph/model/models_gen.go
+  filename: internal/graph/model/models_gen.go
   package: model
 
 # Where should the resolver implementations go?
@@ -75,5 +75,3 @@ models:
   Series: { model: "github.com/ClusterCockpit/cc-backend/schema.Series" }
   MetricStatistics: { model: "github.com/ClusterCockpit/cc-backend/schema.MetricStatistics" }
   StatsSeries: { model: "github.com/ClusterCockpit/cc-backend/schema.StatsSeries" }
-
-

internal/api/rest.go

@@ -16,14 +16,14 @@ import (
 	"sync"
 	"time"
 
-	"github.com/ClusterCockpit/cc-backend/auth"
-	"github.com/ClusterCockpit/cc-backend/config"
-	"github.com/ClusterCockpit/cc-backend/graph"
-	"github.com/ClusterCockpit/cc-backend/graph/model"
-	"github.com/ClusterCockpit/cc-backend/log"
-	"github.com/ClusterCockpit/cc-backend/metricdata"
-	"github.com/ClusterCockpit/cc-backend/repository"
-	"github.com/ClusterCockpit/cc-backend/schema"
+	"github.com/ClusterCockpit/cc-backend/internal/auth"
+	"github.com/ClusterCockpit/cc-backend/internal/config"
+	"github.com/ClusterCockpit/cc-backend/internal/graph"
+	"github.com/ClusterCockpit/cc-backend/internal/graph/model"
+	"github.com/ClusterCockpit/cc-backend/internal/metricdata"
+	"github.com/ClusterCockpit/cc-backend/internal/repository"
+	"github.com/ClusterCockpit/cc-backend/pkg/log"
+	"github.com/ClusterCockpit/cc-backend/pkg/schema"
 	"github.com/gorilla/mux"
 )
 

internal/auth/auth.go

@@ -14,8 +14,8 @@ import (
 	"strings"
 	"time"
 
-	"github.com/ClusterCockpit/cc-backend/graph/model"
-	"github.com/ClusterCockpit/cc-backend/log"
+	"github.com/ClusterCockpit/cc-backend/internal/graph/model"
+	"github.com/ClusterCockpit/cc-backend/pkg/log"
 	sq "github.com/Masterminds/squirrel"
 	"github.com/golang-jwt/jwt/v4"
 	"github.com/gorilla/sessions"

internal/auth/ldap.go

@@ -6,8 +6,7 @@ import (
 	"strings"
 	"time"
 
-	"github.com/ClusterCockpit/cc-backend/log"
-
+	"github.com/ClusterCockpit/cc-backend/pkg/log"
 	"github.com/go-ldap/ldap/v3"
 )
 

internal/config/config.go

@@ -11,9 +11,9 @@ import (
 	"sync"
 	"time"
 
-	"github.com/ClusterCockpit/cc-backend/auth"
-	"github.com/ClusterCockpit/cc-backend/graph/model"
-	"github.com/ClusterCockpit/cc-backend/schema"
+	"github.com/ClusterCockpit/cc-backend/internal/auth"
+	"github.com/ClusterCockpit/cc-backend/internal/graph/model"
+	"github.com/ClusterCockpit/cc-backend/pkg/schema"
 	"github.com/iamlouk/lrucache"
 	"github.com/jmoiron/sqlx"
 )

internal/config/nodelist.go

@@ -5,7 +5,7 @@ import (
 	"strconv"
 	"strings"
 
-	"github.com/ClusterCockpit/cc-backend/log"
+	"github.com/ClusterCockpit/cc-backend/pkg/log"
 )
 
 type NodeList [][]interface {

internal/graph/generated/generated.go

@@ -13,8 +13,8 @@ import (
 
 	"github.com/99designs/gqlgen/graphql"
 	"github.com/99designs/gqlgen/graphql/introspection"
-	"github.com/ClusterCockpit/cc-backend/graph/model"
-	"github.com/ClusterCockpit/cc-backend/schema"
+	"github.com/ClusterCockpit/cc-backend/internal/graph/model"
+	"github.com/ClusterCockpit/cc-backend/pkg/schema"
 	gqlparser "github.com/vektah/gqlparser/v2"
 	"github.com/vektah/gqlparser/v2/ast"
 )

internal/graph/model/models_gen.go

@@ -8,7 +8,7 @@ import (
 	"strconv"
 	"time"
 
-	"github.com/ClusterCockpit/cc-backend/schema"
+	"github.com/ClusterCockpit/cc-backend/pkg/schema"
 )
 
 type Accelerator struct {

internal/graph/resolver.go

@@ -1,7 +1,7 @@
 package graph
 
 import (
-	"github.com/ClusterCockpit/cc-backend/repository"
+	"github.com/ClusterCockpit/cc-backend/internal/repository"
 	"github.com/jmoiron/sqlx"
 )
 

internal/graph/schema.graphqls

@@ -0,0 +1,275 @@
+scalar Time
+scalar Any
+
+scalar NullableFloat
+scalar MetricScope
+scalar JobState
+
+type Job {
+  id:               ID!
+  jobId:            Int!
+  user:             String!
+  project:          String!
+  cluster:          String!
+  subCluster:       String!
+  startTime:        Time!
+  duration:         Int!
+  walltime:         Int!
+  numNodes:         Int!
+  numHWThreads:     Int!
+  numAcc:           Int!
+  SMT:              Int!
+  exclusive:        Int!
+  partition:        String!
+  arrayJobId:       Int!
+  monitoringStatus: Int!
+  state:            JobState!
+  tags:             [Tag!]!
+  resources:        [Resource!]!
+
+  metaData:         Any
+  userData:         User
+}
+
+type Cluster {
+  name:         String!
+  partitions:   [String!]!        # Slurm partitions
+  metricConfig: [MetricConfig!]!
+  filterRanges: FilterRanges!
+  subClusters:  [SubCluster!]!    # Hardware partitions/subclusters
+}
+
+type SubCluster {
+  name:            String!
+  nodes:           String!
+  numberOfNodes:   Int!
+  processorType:   String!
+  socketsPerNode:  Int!
+  coresPerSocket:  Int!
+  threadsPerCore:  Int!
+  flopRateScalar:  Int!
+  flopRateSimd:    Int!
+  memoryBandwidth: Int!
+  topology:        Topology!
+}
+
+type Topology {
+  node:         [Int!]
+  socket:       [[Int!]!]
+  memoryDomain: [[Int!]!]
+  die:          [[Int!]!]
+  core:         [[Int!]!]
+  accelerators: [Accelerator!]
+}
+
+type Accelerator {
+  id:    String!
+  type:  String!
+  model: String!
+}
+
+type SubClusterConfig {
+  name:    String!
+  peak:    Float!
+  normal:  Float!
+  caution: Float!
+  alert:   Float!
+}
+
+type MetricConfig {
+  name:        String!
+  unit:        String!
+  scope:       MetricScope!
+  aggregation: String
+  timestep:    Int!
+  peak:        Float
+  normal:      Float
+  caution:     Float
+  alert:       Float
+  subClusters: [SubClusterConfig]
+}
+
+type Tag {
+  id:   ID!
+  type: String!
+  name: String!
+}
+
+type Resource {
+  hostname:      String!
+  hwthreads:     [Int!]
+  accelerators:  [String!]
+  configuration: String
+}
+
+type JobMetricWithName {
+  name:   String!
+  metric: JobMetric!
+}
+
+type JobMetric {
+  unit:             String!
+  scope:            MetricScope!
+  timestep:         Int!
+  series:           [Series!]
+  statisticsSeries: StatsSeries
+}
+
+type Series {
+  hostname:   String!
+  id:         Int
+  statistics: MetricStatistics
+  data:       [NullableFloat!]!
+}
+
+type MetricStatistics {
+  avg: Float!
+  min: Float!
+  max: Float!
+}
+
+type StatsSeries {
+  mean: [NullableFloat!]!
+  min:  [NullableFloat!]!
+  max:  [NullableFloat!]!
+}
+
+type MetricFootprints {
+  metric: String!
+  data:   [NullableFloat!]!
+}
+
+type Footprints {
+  nodehours: [NullableFloat!]!
+  metrics:   [MetricFootprints!]!
+}
+
+enum Aggregate { USER, PROJECT, CLUSTER }
+enum Weights { NODE_COUNT, NODE_HOURS }
+
+type NodeMetrics {
+  host:       String!
+  subCluster: String!
+  metrics:    [JobMetricWithName!]!
+}
+
+type Count {
+  name:  String!
+  count: Int!
+}
+
+type User {
+  username: String!
+  name:     String!
+  email:    String!
+}
+
+type Query {
+  clusters:     [Cluster!]!   # List of all clusters
+  tags:         [Tag!]!       # List of all tags
+
+  user(username: String!): User
+  allocatedNodes(cluster: String!): [Count!]!
+
+  job(id: ID!): Job
+  jobMetrics(id: ID!, metrics: [String!], scopes: [MetricScope!]): [JobMetricWithName!]!
+  jobsFootprints(filter: [JobFilter!], metrics: [String!]!): Footprints
+
+  jobs(filter: [JobFilter!], page: PageRequest, order: OrderByInput): JobResultList!
+  jobsStatistics(filter: [JobFilter!], groupBy: Aggregate): [JobsStatistics!]!
+  jobsCount(filter: [JobFilter]!, groupBy: Aggregate!, weight: Weights, limit: Int): [Count!]!
+
+  rooflineHeatmap(filter: [JobFilter!]!, rows: Int!, cols: Int!, minX: Float!, minY: Float!, maxX: Float!, maxY: Float!): [[Float!]!]!
+
+  nodeMetrics(cluster: String!, nodes: [String!], scopes: [MetricScope!], metrics: [String!], from: Time!, to: Time!): [NodeMetrics!]!
+}
+
+type Mutation {
+  createTag(type: String!, name: String!): Tag!
+  deleteTag(id: ID!): ID!
+  addTagsToJob(job: ID!, tagIds: [ID!]!): [Tag!]!
+  removeTagsFromJob(job: ID!, tagIds: [ID!]!): [Tag!]!
+
+  updateConfiguration(name: String!, value: String!): String
+}
+
+type IntRangeOutput { from: Int!, to: Int! }
+type TimeRangeOutput { from: Time!, to: Time! }
+
+type FilterRanges {
+  duration:  IntRangeOutput!
+  numNodes:  IntRangeOutput!
+  startTime: TimeRangeOutput!
+}
+
+input JobFilter {
+  tags:        [ID!]
+  jobId:       StringInput
+  arrayJobId:  Int
+  user:        StringInput
+  project:     StringInput
+  cluster:     StringInput
+  partition:   StringInput
+  duration:    IntRange
+
+  minRunningFor: Int
+
+  numNodes:        IntRange
+  numAccelerators: IntRange
+  numHWThreads:    IntRange
+
+  startTime:   TimeRange
+  state:       [JobState!]
+  flopsAnyAvg: FloatRange
+  memBwAvg:    FloatRange
+  loadAvg:     FloatRange
+  memUsedMax:  FloatRange
+}
+
+input OrderByInput {
+  field: String!
+  order: SortDirectionEnum! = ASC
+}
+
+enum SortDirectionEnum {
+  DESC
+  ASC
+}
+
+input StringInput {
+  eq:         String
+  contains:   String
+  startsWith: String
+  endsWith:   String
+}
+
+input IntRange   { from: Int!,   to: Int! }
+input FloatRange { from: Float!, to: Float! }
+input TimeRange  { from: Time,   to: Time }
+
+type JobResultList {
+  items:  [Job!]!
+  offset: Int
+  limit:  Int
+  count:  Int
+}
+
+type HistoPoint {
+  count: Int!
+  value: Int!
+}
+
+type JobsStatistics  {
+  id:             ID!            # If `groupBy` was used, ID of the user/project/cluster
+  totalJobs:      Int!           # Number of jobs that matched
+  shortJobs:      Int!           # Number of jobs with a duration of less than 2 minutes
+  totalWalltime:  Int!           # Sum of the duration of all matched jobs in hours
+  totalCoreHours: Int!           # Sum of the core hours of all matched jobs
+  histDuration:   [HistoPoint!]! # value: hour, count: number of jobs with a rounded duration of value
+  histNumNodes:   [HistoPoint!]! # value: number of nodes, count: number of jobs with that number of nodes
+}
+
+input PageRequest {
+  itemsPerPage: Int!
+  page:         Int!
+}

internal/graph/schema.resolvers.go

@@ -10,12 +10,12 @@ import (
 	"strconv"
 	"time"
 
-	"github.com/ClusterCockpit/cc-backend/auth"
-	"github.com/ClusterCockpit/cc-backend/config"
-	"github.com/ClusterCockpit/cc-backend/graph/generated"
-	"github.com/ClusterCockpit/cc-backend/graph/model"
-	"github.com/ClusterCockpit/cc-backend/metricdata"
-	"github.com/ClusterCockpit/cc-backend/schema"
+	"github.com/ClusterCockpit/cc-backend/internal/auth"
+	"github.com/ClusterCockpit/cc-backend/internal/config"
+	"github.com/ClusterCockpit/cc-backend/internal/graph/generated"
+	"github.com/ClusterCockpit/cc-backend/internal/graph/model"
+	"github.com/ClusterCockpit/cc-backend/internal/metricdata"
+	"github.com/ClusterCockpit/cc-backend/pkg/schema"
 )
 
 func (r *clusterResolver) Partitions(ctx context.Context, obj *model.Cluster) ([]string, error) {

internal/graph/stats.go

@@ -9,11 +9,11 @@ import (
 	"time"
 
 	"github.com/99designs/gqlgen/graphql"
-	"github.com/ClusterCockpit/cc-backend/config"
-	"github.com/ClusterCockpit/cc-backend/graph/model"
-	"github.com/ClusterCockpit/cc-backend/metricdata"
-	"github.com/ClusterCockpit/cc-backend/repository"
-	"github.com/ClusterCockpit/cc-backend/schema"
+	"github.com/ClusterCockpit/cc-backend/internal/config"
+	"github.com/ClusterCockpit/cc-backend/internal/graph/model"
+	"github.com/ClusterCockpit/cc-backend/internal/metricdata"
+	"github.com/ClusterCockpit/cc-backend/internal/repository"
+	"github.com/ClusterCockpit/cc-backend/pkg/schema"
 	sq "github.com/Masterminds/squirrel"
 )
 

internal/metricdata/archive.go

@@ -13,8 +13,8 @@ import (
 	"strconv"
 	"time"
 
-	"github.com/ClusterCockpit/cc-backend/config"
-	"github.com/ClusterCockpit/cc-backend/schema"
+	"github.com/ClusterCockpit/cc-backend/internal/config"
+	"github.com/ClusterCockpit/cc-backend/pkg/schema"
 )
 
 // For a given job, return the path of the `data.json`/`meta.json` file.

internal/metricdata/cc-metric-store.go

@@ -11,8 +11,8 @@ import (
 	"strings"
 	"time"
 
-	"github.com/ClusterCockpit/cc-backend/config"
-	"github.com/ClusterCockpit/cc-backend/schema"
+	"github.com/ClusterCockpit/cc-backend/internal/config"
+	"github.com/ClusterCockpit/cc-backend/pkg/schema"
 )
 
 type CCMetricStoreConfig struct {

internal/metricdata/influxdb-v2.go

@@ -0,0 +1,308 @@
+package metricdata
+
+import (
+	"context"
+	"crypto/tls"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"log"
+	"strings"
+	"time"
+
+	"github.com/ClusterCockpit/cc-backend/internal/config"
+	"github.com/ClusterCockpit/cc-backend/pkg/schema"
+	influxdb2 "github.com/influxdata/influxdb-client-go/v2"
+	influxdb2Api "github.com/influxdata/influxdb-client-go/v2/api"
+)
+
+type InfluxDBv2DataRepositoryConfig struct {
+	Url     string `json:"url"`
+	Token   string `json:"token"`
+	Bucket  string `json:"bucket"`
+	Org     string `json:"org"`
+	SkipTls bool   `json:"skiptls"`
+}
+
+type InfluxDBv2DataRepository struct {
+	client              influxdb2.Client
+	queryClient         influxdb2Api.QueryAPI
+	bucket, measurement string
+}
+
+func (idb *InfluxDBv2DataRepository) Init(rawConfig json.RawMessage) error {
+	var config InfluxDBv2DataRepositoryConfig
+	if err := json.Unmarshal(rawConfig, &config); err != nil {
+		return err
+	}
+
+	idb.client = influxdb2.NewClientWithOptions(config.Url, config.Token, influxdb2.DefaultOptions().SetTLSConfig(&tls.Config{InsecureSkipVerify: config.SkipTls}))
+	idb.queryClient = idb.client.QueryAPI(config.Org)
+	idb.bucket = config.Bucket
+
+	return nil
+}
+
+func (idb *InfluxDBv2DataRepository) formatTime(t time.Time) string {
+	return t.Format(time.RFC3339) // Like “2006-01-02T15:04:05Z07:00”
+}
+
+func (idb *InfluxDBv2DataRepository) epochToTime(epoch int64) time.Time {
+	return time.Unix(epoch, 0)
+}
+
+func (idb *InfluxDBv2DataRepository) LoadData(job *schema.Job, metrics []string, scopes []schema.MetricScope, ctx context.Context) (schema.JobData, error) {
+
+	measurementsConds := make([]string, 0, len(metrics))
+	for _, m := range metrics {
+		measurementsConds = append(measurementsConds, fmt.Sprintf(`r["_measurement"] == "%s"`, m))
+	}
+	measurementsCond := strings.Join(measurementsConds, " or ")
+
+	hostsConds := make([]string, 0, len(job.Resources))
+	for _, h := range job.Resources {
+		if h.HWThreads != nil || h.Accelerators != nil {
+			// TODO
+			return nil, errors.New("the InfluxDB metric data repository does not yet support HWThreads or Accelerators")
+		}
+		hostsConds = append(hostsConds, fmt.Sprintf(`r["hostname"] == "%s"`, h.Hostname))
+	}
+	hostsCond := strings.Join(hostsConds, " or ")
+
+	jobData := make(schema.JobData) // Empty Schema: map[<string>FIELD]map[<MetricScope>SCOPE]<*JobMetric>METRIC
+	// Requested Scopes
+	for _, scope := range scopes {
+		query := ""
+		switch scope {
+		case "node":
+			// Get Finest Granularity, Groupy By Measurement and Hostname (== Metric / Node), Calculate Mean for 60s windows
+			// log.Println("Note: Scope 'node' requested. ")
+			query = fmt.Sprintf(`
+								from(bucket: "%s")
+								|> range(start: %s, stop: %s)
+								|> filter(fn: (r) => (%s) and (%s) )
+								|> drop(columns: ["_start", "_stop"])
+								|> group(columns: ["hostname", "_measurement"])
+		            |> aggregateWindow(every: 60s, fn: mean)
+								|> drop(columns: ["_time"])`,
+				idb.bucket,
+				idb.formatTime(job.StartTime), idb.formatTime(idb.epochToTime(job.StartTimeUnix+int64(job.Duration)+int64(1))),
+				measurementsCond, hostsCond)
+		case "socket":
+			log.Println("Note: Scope 'socket' requested, but not yet supported: Will return 'node' scope only. ")
+			continue
+		case "core":
+			log.Println("Note: Scope 'core' requested, but not yet supported: Will return 'node' scope only. ")
+			continue
+			// Get Finest Granularity only, Set NULL to 0.0
+			// query = fmt.Sprintf(`
+			//  	from(bucket: "%s")
+			//  	|> range(start: %s, stop: %s)
+			//  	|> filter(fn: (r) => %s )
+			//  	|> filter(fn: (r) => %s )
+			//  	|> drop(columns: ["_start", "_stop", "cluster"])
+			//  	|> map(fn: (r) => (if exists r._value then {r with _value: r._value} else {r with _value: 0.0}))`,
+			//  	idb.bucket,
+			//  	idb.formatTime(job.StartTime), idb.formatTime(idb.epochToTime(job.StartTimeUnix + int64(job.Duration) + int64(1) )),
+			//  	measurementsCond, hostsCond)
+		default:
+			log.Println("Note: Unknown Scope requested: Will return 'node' scope. ")
+			continue
+			// return nil, errors.New("the InfluxDB metric data repository does not yet support other scopes than 'node'")
+		}
+
+		rows, err := idb.queryClient.Query(ctx, query)
+		if err != nil {
+			return nil, err
+		}
+
+		// Init Metrics: Only Node level now -> TODO: Matching /check on scope level ...
+		for _, metric := range metrics {
+			jobMetric, ok := jobData[metric]
+			if !ok {
+				mc := config.GetMetricConfig(job.Cluster, metric)
+				jobMetric = map[schema.MetricScope]*schema.JobMetric{
+					scope: { // uses scope var from above!
+						Unit:             mc.Unit,
+						Scope:            scope,
+						Timestep:         mc.Timestep,
+						Series:           make([]schema.Series, 0, len(job.Resources)),
+						StatisticsSeries: nil, // Should be: &schema.StatsSeries{},
+					},
+				}
+			}
+			jobData[metric] = jobMetric
+		}
+
+		// Process Result: Time-Data
+		field, host, hostSeries := "", "", schema.Series{}
+		// typeId := 0
+		switch scope {
+		case "node":
+			for rows.Next() {
+				row := rows.Record()
+				if host == "" || host != row.ValueByKey("hostname").(string) || rows.TableChanged() {
+					if host != "" {
+						// Append Series before reset
+						jobData[field][scope].Series = append(jobData[field][scope].Series, hostSeries)
+					}
+					field, host = row.Measurement(), row.ValueByKey("hostname").(string)
+					hostSeries = schema.Series{
+						Hostname:   host,
+						Statistics: nil,
+						Data:       make([]schema.Float, 0),
+					}
+				}
+				val, ok := row.Value().(float64)
+				if ok {
+					hostSeries.Data = append(hostSeries.Data, schema.Float(val))
+				} else {
+					hostSeries.Data = append(hostSeries.Data, schema.Float(0))
+				}
+			}
+		case "socket":
+			continue
+		case "core":
+			continue
+			// Include Series.Id in hostSeries
+			// for rows.Next() {
+			// 		row := rows.Record()
+			// 		if ( host == "" || host != row.ValueByKey("hostname").(string) || typeId != row.ValueByKey("type-id").(int) || rows.TableChanged() ) {
+			// 		 		if ( host != "" ) {
+			// 						// Append Series before reset
+			// 		 		  	jobData[field][scope].Series = append(jobData[field][scope].Series, hostSeries)
+			// 		 		}
+			// 		 		field, host, typeId = row.Measurement(), row.ValueByKey("hostname").(string), row.ValueByKey("type-id").(int)
+			// 		 		hostSeries  = schema.Series{
+			// 		 				Hostname:   host,
+			// 						Id:					&typeId,
+			// 		 				Statistics: nil,
+			// 		 				Data:       make([]schema.Float, 0),
+			// 		 		}
+			// 		}
+			// 		val := row.Value().(float64)
+			// 		hostSeries.Data = append(hostSeries.Data, schema.Float(val))
+			// }
+		default:
+			continue
+			// return nil, errors.New("the InfluxDB metric data repository does not yet support other scopes than 'node, core'")
+		}
+		// Append last Series
+		jobData[field][scope].Series = append(jobData[field][scope].Series, hostSeries)
+	}
+
+	// Get Stats
+	stats, err := idb.LoadStats(job, metrics, ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	for _, scope := range scopes {
+		if scope == "node" { // No 'socket/core' support yet
+			for metric, nodes := range stats {
+				// log.Println(fmt.Sprintf("<< Add Stats for : Field %s >>", metric))
+				for node, stats := range nodes {
+					// log.Println(fmt.Sprintf("<< Add Stats for : Host %s : Min %.2f, Max %.2f, Avg %.2f >>", node, stats.Min, stats.Max, stats.Avg ))
+					for index, _ := range jobData[metric][scope].Series {
+						// log.Println(fmt.Sprintf("<< Try to add Stats to Series in Position %d >>", index))
+						if jobData[metric][scope].Series[index].Hostname == node {
+							// log.Println(fmt.Sprintf("<< Match for Series in Position %d : Host %s >>", index, jobData[metric][scope].Series[index].Hostname))
+							jobData[metric][scope].Series[index].Statistics = &schema.MetricStatistics{Avg: stats.Avg, Min: stats.Min, Max: stats.Max}
+							// log.Println(fmt.Sprintf("<< Result Inner: Min %.2f, Max %.2f, Avg %.2f >>", jobData[metric][scope].Series[index].Statistics.Min, jobData[metric][scope].Series[index].Statistics.Max, jobData[metric][scope].Series[index].Statistics.Avg))
+						}
+					}
+				}
+			}
+		}
+	}
+
+	// DEBUG:
+	// for _, scope := range scopes {
+	// 		for _, met := range metrics {
+	// 		   for _, series := range jobData[met][scope].Series {
+	// 		   log.Println(fmt.Sprintf("<< Result: %d data points for metric %s on %s with scope %s, Stats: Min %.2f, Max %.2f, Avg %.2f >>",
+	// 				 	len(series.Data), met, series.Hostname, scope,
+	// 					series.Statistics.Min, series.Statistics.Max, series.Statistics.Avg))
+	// 		   }
+	// 		}
+	// }
+
+	return jobData, nil
+}
+
+func (idb *InfluxDBv2DataRepository) LoadStats(job *schema.Job, metrics []string, ctx context.Context) (map[string]map[string]schema.MetricStatistics, error) {
+
+	stats := map[string]map[string]schema.MetricStatistics{}
+
+	hostsConds := make([]string, 0, len(job.Resources))
+	for _, h := range job.Resources {
+		if h.HWThreads != nil || h.Accelerators != nil {
+			// TODO
+			return nil, errors.New("the InfluxDB metric data repository does not yet support HWThreads or Accelerators")
+		}
+		hostsConds = append(hostsConds, fmt.Sprintf(`r["hostname"] == "%s"`, h.Hostname))
+	}
+	hostsCond := strings.Join(hostsConds, " or ")
+
+	// lenMet := len(metrics)
+
+	for _, metric := range metrics {
+		// log.Println(fmt.Sprintf("<< You are here: %s (Index %d of %d metrics)", metric, index, lenMet))
+
+		query := fmt.Sprintf(`
+				  data = from(bucket: "%s")
+				  |> range(start: %s, stop: %s)
+				  |> filter(fn: (r) => r._measurement == "%s" and r._field == "value" and (%s))
+				  union(tables: [data |> mean(column: "_value") |> set(key: "_field", value: "avg"),
+				                 data |>  min(column: "_value") |> set(key: "_field", value: "min"),
+				                 data |>  max(column: "_value") |> set(key: "_field", value: "max")])
+				  |> pivot(rowKey: ["hostname"], columnKey: ["_field"], valueColumn: "_value")
+				  |> group()`,
+			idb.bucket,
+			idb.formatTime(job.StartTime), idb.formatTime(idb.epochToTime(job.StartTimeUnix+int64(job.Duration)+int64(1))),
+			metric, hostsCond)
+
+		rows, err := idb.queryClient.Query(ctx, query)
+		if err != nil {
+			return nil, err
+		}
+
+		nodes := map[string]schema.MetricStatistics{}
+		for rows.Next() {
+			row := rows.Record()
+			host := row.ValueByKey("hostname").(string)
+
+			avg, avgok := row.ValueByKey("avg").(float64)
+			if !avgok {
+				// log.Println(fmt.Sprintf(">> Assertion error for metric %s, statistic AVG. Expected 'float64', got %v", metric, avg))
+				avg = 0.0
+			}
+			min, minok := row.ValueByKey("min").(float64)
+			if !minok {
+				// log.Println(fmt.Sprintf(">> Assertion error for metric %s, statistic MIN. Expected 'float64', got %v", metric, min))
+				min = 0.0
+			}
+			max, maxok := row.ValueByKey("max").(float64)
+			if !maxok {
+				// log.Println(fmt.Sprintf(">> Assertion error for metric %s, statistic MAX. Expected 'float64', got %v", metric, max))
+				max = 0.0
+			}
+
+			nodes[host] = schema.MetricStatistics{
+				Avg: avg,
+				Min: min,
+				Max: max,
+			}
+		}
+		stats[metric] = nodes
+	}
+
+	return stats, nil
+}
+
+func (idb *InfluxDBv2DataRepository) LoadNodeData(cluster string, metrics, nodes []string, scopes []schema.MetricScope, from, to time.Time, ctx context.Context) (map[string]map[string][]*schema.JobMetric, error) {
+	// TODO : Implement to be used in Analysis- und System/Node-View
+	log.Println(fmt.Sprintf("LoadNodeData unimplemented for InfluxDBv2DataRepository, Args: cluster %s, metrics %v, nodes %v, scopes %v", cluster, metrics, nodes, scopes))
+
+	return nil, errors.New("unimplemented for InfluxDBv2DataRepository")
+}

internal/metricdata/metricdata.go

@@ -6,9 +6,9 @@ import (
 	"fmt"
 	"time"
 
-	"github.com/ClusterCockpit/cc-backend/config"
-	"github.com/ClusterCockpit/cc-backend/log"
-	"github.com/ClusterCockpit/cc-backend/schema"
+	"github.com/ClusterCockpit/cc-backend/internal/config"
+	"github.com/ClusterCockpit/cc-backend/pkg/log"
+	"github.com/ClusterCockpit/cc-backend/pkg/schema"
 	"github.com/iamlouk/lrucache"
 )
 

internal/metricdata/utils.go

@@ -5,7 +5,7 @@ import (
 	"encoding/json"
 	"time"
 
-	"github.com/ClusterCockpit/cc-backend/schema"
+	"github.com/ClusterCockpit/cc-backend/pkg/schema"
 )
 
 var TestLoadDataCallback func(job *schema.Job, metrics []string, scopes []schema.MetricScope, ctx context.Context) (schema.JobData, error) = func(job *schema.Job, metrics []string, scopes []schema.MetricScope, ctx context.Context) (schema.JobData, error) {

internal/repository/dbConnection.go

@@ -0,0 +1,58 @@
+package repository
+
+import (
+	"fmt"
+	"log"
+	"sync"
+	"time"
+
+	"github.com/jmoiron/sqlx"
+)
+
+var (
+	dbConnOnce     sync.Once
+	dbConnInstance *DBConnection
+)
+
+type DBConnection struct {
+	DB *sqlx.DB
+}
+
+func Connect(driver string, db string) {
+	var err error
+	var dbHandle *sqlx.DB
+
+	dbConnOnce.Do(func() {
+		if driver == "sqlite3" {
+			dbHandle, err = sqlx.Open("sqlite3", fmt.Sprintf("%s?_foreign_keys=on", db))
+			if err != nil {
+				log.Fatal(err)
+			}
+
+			// sqlite does not multithread. Having more than one connection open would just mean
+			// waiting for locks.
+			dbHandle.SetMaxOpenConns(1)
+		} else if driver == "mysql" {
+			dbHandle, err = sqlx.Open("mysql", fmt.Sprintf("%s?multiStatements=true", db))
+			if err != nil {
+				log.Fatal(err)
+			}
+
+			dbHandle.SetConnMaxLifetime(time.Minute * 3)
+			dbHandle.SetMaxOpenConns(10)
+			dbHandle.SetMaxIdleConns(10)
+		} else {
+			log.Fatalf("unsupported database driver: %s", driver)
+		}
+
+		dbConnInstance = &DBConnection{DB: dbHandle}
+	})
+}
+
+func GetConnection() *DBConnection {
+	if dbConnInstance == nil {
+		log.Fatalf("Database connection not initialized!")
+	}
+
+	return dbConnInstance
+}

internal/repository/import.go

@@ -9,10 +9,10 @@ import (
 	"strings"
 	"time"
 
-	"github.com/ClusterCockpit/cc-backend/config"
-	"github.com/ClusterCockpit/cc-backend/log"
-	"github.com/ClusterCockpit/cc-backend/metricdata"
-	"github.com/ClusterCockpit/cc-backend/schema"
+	"github.com/ClusterCockpit/cc-backend/internal/config"
+	"github.com/ClusterCockpit/cc-backend/internal/metricdata"
+	"github.com/ClusterCockpit/cc-backend/pkg/log"
+	"github.com/ClusterCockpit/cc-backend/pkg/schema"
 )
 
 const NamedJobInsert string = `INSERT INTO job (

internal/repository/init.go

@@ -8,8 +8,8 @@ import (
 	"path/filepath"
 	"time"
 
-	"github.com/ClusterCockpit/cc-backend/log"
-	"github.com/ClusterCockpit/cc-backend/schema"
+	"github.com/ClusterCockpit/cc-backend/pkg/log"
+	"github.com/ClusterCockpit/cc-backend/pkg/schema"
 	"github.com/jmoiron/sqlx"
 )
 

internal/repository/job.go

@@ -7,17 +7,23 @@ import (
 	"errors"
 	"fmt"
 	"strconv"
+	"sync"
 	"time"
 
-	"github.com/ClusterCockpit/cc-backend/auth"
-	"github.com/ClusterCockpit/cc-backend/graph/model"
-	"github.com/ClusterCockpit/cc-backend/log"
-	"github.com/ClusterCockpit/cc-backend/schema"
+	"github.com/ClusterCockpit/cc-backend/internal/auth"
+	"github.com/ClusterCockpit/cc-backend/internal/graph/model"
+	"github.com/ClusterCockpit/cc-backend/pkg/log"
+	"github.com/ClusterCockpit/cc-backend/pkg/schema"
 	sq "github.com/Masterminds/squirrel"
 	"github.com/iamlouk/lrucache"
 	"github.com/jmoiron/sqlx"
 )
 
+var (
+	jobRepoOnce     sync.Once
+	jobRepoInstance *JobRepository
+)
+
 type JobRepository struct {
 	DB *sqlx.DB
 
@@ -25,10 +31,18 @@ type JobRepository struct {
 	cache     *lrucache.Cache
 }
 
-func (r *JobRepository) Init() error {
-	r.stmtCache = sq.NewStmtCache(r.DB)
-	r.cache = lrucache.New(1024 * 1024)
-	return nil
+func GetRepository() *JobRepository {
+	jobRepoOnce.Do(func() {
+		db := GetConnection()
+
+		jobRepoInstance = &JobRepository{
+			DB:        db.DB,
+			stmtCache: sq.NewStmtCache(db.DB),
+			cache:     lrucache.New(1024 * 1024),
+		}
+	})
+
+	return jobRepoInstance
 }
 
 var jobColumns []string = []string{

internal/repository/job_test.go

@@ -11,22 +11,11 @@ import (
 var db *sqlx.DB
 
 func init() {
-	var err error
-	db, err = sqlx.Open("sqlite3", "../test/test.db")
-	if err != nil {
-		fmt.Println(err)
-	}
+	Connect("sqlite3", "../../test/test.db")
 }
 
 func setup(t *testing.T) *JobRepository {
-	r := &JobRepository{
-		DB: db,
-	}
-	if err := r.Init(); err != nil {
-		t.Fatal(err)
-	}
-
-	return r
+	return GetRepository()
 }
 
 func TestFind(t *testing.T) {

internal/repository/query.go

@@ -8,10 +8,10 @@ import (
 	"strings"
 	"time"
 
-	"github.com/ClusterCockpit/cc-backend/auth"
-	"github.com/ClusterCockpit/cc-backend/graph/model"
-	"github.com/ClusterCockpit/cc-backend/log"
-	"github.com/ClusterCockpit/cc-backend/schema"
+	"github.com/ClusterCockpit/cc-backend/internal/auth"
+	"github.com/ClusterCockpit/cc-backend/internal/graph/model"
+	"github.com/ClusterCockpit/cc-backend/pkg/log"
+	"github.com/ClusterCockpit/cc-backend/pkg/schema"
 	sq "github.com/Masterminds/squirrel"
 )
 

internal/repository/tags.go

@@ -1,8 +1,8 @@
 package repository
 
 import (
-	"github.com/ClusterCockpit/cc-backend/metricdata"
-	"github.com/ClusterCockpit/cc-backend/schema"
+	"github.com/ClusterCockpit/cc-backend/internal/metricdata"
+	"github.com/ClusterCockpit/cc-backend/pkg/schema"
 	sq "github.com/Masterminds/squirrel"
 )
 

internal/routerConfig/routes.go

@@ -1,4 +1,4 @@
-package main
+package routerConfig
 
 import (
 	"fmt"
@@ -8,13 +8,14 @@ import (
 	"strings"
 	"time"
 
-	"github.com/ClusterCockpit/cc-backend/auth"
-	"github.com/ClusterCockpit/cc-backend/config"
-	"github.com/ClusterCockpit/cc-backend/graph"
-	"github.com/ClusterCockpit/cc-backend/graph/model"
-	"github.com/ClusterCockpit/cc-backend/log"
-	"github.com/ClusterCockpit/cc-backend/schema"
-	"github.com/ClusterCockpit/cc-backend/templates"
+	"github.com/ClusterCockpit/cc-backend/internal/auth"
+	"github.com/ClusterCockpit/cc-backend/internal/config"
+	"github.com/ClusterCockpit/cc-backend/internal/graph"
+	"github.com/ClusterCockpit/cc-backend/internal/graph/model"
+	"github.com/ClusterCockpit/cc-backend/internal/repository"
+	"github.com/ClusterCockpit/cc-backend/internal/templates"
+	"github.com/ClusterCockpit/cc-backend/pkg/log"
+	"github.com/ClusterCockpit/cc-backend/pkg/schema"
 	"github.com/gorilla/mux"
 )
 
@@ -50,6 +51,7 @@ func setupHomeRoute(i InfoType, r *http.Request) InfoType {
 		TotalJobs       int
 		RecentShortJobs int
 	}
+	jobRepo := repository.GetRepository()
 
 	runningJobs, err := jobRepo.CountGroupedJobs(r.Context(), model.AggregateCluster, []*model.JobFilter{{
 		State: []schema.JobState{schema.JobStateRunning},
@@ -93,6 +95,7 @@ func setupJobRoute(i InfoType, r *http.Request) InfoType {
 }
 
 func setupUserRoute(i InfoType, r *http.Request) InfoType {
+	jobRepo := repository.GetRepository()
 	username := mux.Vars(r)["id"]
 	i["id"] = username
 	i["username"] = username
@@ -135,6 +138,7 @@ func setupAnalysisRoute(i InfoType, r *http.Request) InfoType {
 
 func setupTaglistRoute(i InfoType, r *http.Request) InfoType {
 	var username *string = nil
+	jobRepo := repository.GetRepository()
 	if user := auth.GetUser(r.Context()); user != nil && !user.HasRole(auth.RoleAdmin) {
 		username = &user.Username
 	}
@@ -245,7 +249,7 @@ func buildFilterPresets(query url.Values) map[string]interface{} {
 	return filterPresets
 }
 
-func setupRoutes(router *mux.Router, routes []Route) {
+func SetupRoutes(router *mux.Router) {
 	for _, route := range routes {
 		route := route
 		router.HandleFunc(route.Route, func(rw http.ResponseWriter, r *http.Request) {

internal/runtimeEnv/setup.go

@@ -1,4 +1,4 @@
-package main
+package runtimeEnv
 
 import (
 	"bufio"
@@ -15,7 +15,7 @@ import (
 // Very simple and limited .env file reader.
 // All variable definitions found are directly
 // added to the processes environment.
-func loadEnv(file string) error {
+func LoadEnv(file string) error {
 	f, err := os.Open(file)
 	if err != nil {
 		return err
@@ -81,9 +81,9 @@ func loadEnv(file string) error {
 // specified in the config.json. The go runtime
 // takes care of all threads (and not only the calling one)
 // executing the underlying systemcall.
-func dropPrivileges() error {
-	if programConfig.Group != "" {
-		g, err := user.LookupGroup(programConfig.Group)
+func DropPrivileges(username string, group string) error {
+	if group != "" {
+		g, err := user.LookupGroup(group)
 		if err != nil {
 			return err
 		}
@@ -94,8 +94,8 @@ func dropPrivileges() error {
 		}
 	}
 
-	if programConfig.User != "" {
-		u, err := user.Lookup(programConfig.User)
+	if username != "" {
+		u, err := user.Lookup(username)
 		if err != nil {
 			return err
 		}
@@ -111,7 +111,7 @@ func dropPrivileges() error {
 
 // If started via systemd, inform systemd that we are running:
 // https://www.freedesktop.org/software/systemd/man/sd_notify.html
-func systemdNotifiy(ready bool, status string) {
+func SystemdNotifiy(ready bool, status string) {
 	if os.Getenv("NOTIFY_SOCKET") == "" {
 		// Not started using systemd
 		return

internal/templates/templates.go

@@ -5,8 +5,8 @@ import (
 	"net/http"
 	"os"
 
-	"github.com/ClusterCockpit/cc-backend/config"
-	"github.com/ClusterCockpit/cc-backend/log"
+	"github.com/ClusterCockpit/cc-backend/internal/config"
+	"github.com/ClusterCockpit/cc-backend/pkg/log"
 )
 
 var templatesDir string
@@ -36,7 +36,7 @@ func init() {
 	if ebp != "" {
 		bp = ebp
 	}
-	templatesDir = bp + "templates/"
+	templatesDir = bp + "web/templates/"
 	base := template.Must(template.ParseFiles(templatesDir + "base.tmpl"))
 	files := []string{
 		"home.tmpl", "404.tmpl", "login.tmpl",

metricdata/influxdb-v2.go

@@ -1,308 +0,0 @@
-package metricdata
-
-import (
-	"context"
-	"errors"
-	"fmt"
-	"log"
-	"strings"
-	"time"
-	"crypto/tls"
-	"encoding/json"
-
-	"github.com/ClusterCockpit/cc-backend/config"
-	"github.com/ClusterCockpit/cc-backend/schema"
-	influxdb2 "github.com/influxdata/influxdb-client-go/v2"
-	influxdb2Api "github.com/influxdata/influxdb-client-go/v2/api"
-)
-
-type InfluxDBv2DataRepositoryConfig struct {
-	Url   string `json:"url"`
-	Token string `json:"token"`
-	Bucket string `json:"bucket"`
-	Org string `json:"org"`
-	SkipTls bool `json:"skiptls"`
-}
-
-type InfluxDBv2DataRepository struct {
-	client              influxdb2.Client
-	queryClient         influxdb2Api.QueryAPI
-	bucket, measurement string
-}
-
-func (idb *InfluxDBv2DataRepository) Init(rawConfig json.RawMessage) error {
-	var config InfluxDBv2DataRepositoryConfig
-	if err := json.Unmarshal(rawConfig, &config); err != nil {
-		return err
-	}
-
-	idb.client 			= influxdb2.NewClientWithOptions(config.Url, config.Token, influxdb2.DefaultOptions().SetTLSConfig(&tls.Config {InsecureSkipVerify: config.SkipTls,} ))
-	idb.queryClient = idb.client.QueryAPI(config.Org)
-	idb.bucket      = config.Bucket
-
-	return nil
-}
-
-func (idb *InfluxDBv2DataRepository) formatTime(t time.Time) string {
-	return t.Format(time.RFC3339) // Like “2006-01-02T15:04:05Z07:00”
-}
-
-func (idb *InfluxDBv2DataRepository) epochToTime(epoch int64) time.Time {
-	return time.Unix(epoch, 0)
-}
-
-func (idb *InfluxDBv2DataRepository) LoadData(job *schema.Job, metrics []string, scopes []schema.MetricScope, ctx context.Context) (schema.JobData, error) {
-
-	measurementsConds := make([]string, 0, len(metrics))
-	for _, m := range metrics {
-		measurementsConds = append(measurementsConds, fmt.Sprintf(`r["_measurement"] == "%s"`, m))
-	}
-	measurementsCond := strings.Join(measurementsConds, " or ")
-
-	hostsConds := make([]string, 0, len(job.Resources))
-	for _, h := range job.Resources {
-		if h.HWThreads != nil || h.Accelerators != nil {
-			// TODO
-			return nil, errors.New("the InfluxDB metric data repository does not yet support HWThreads or Accelerators")
-		}
-		hostsConds = append(hostsConds, fmt.Sprintf(`r["hostname"] == "%s"`, h.Hostname))
-	}
-	hostsCond := strings.Join(hostsConds, " or ")
-
-	jobData := make(schema.JobData) // Empty Schema: map[<string>FIELD]map[<MetricScope>SCOPE]<*JobMetric>METRIC
-	// Requested Scopes
-	for _, scope := range scopes {
-			query := ""
-			switch scope {
-					case "node":
-							// Get Finest Granularity, Groupy By Measurement and Hostname (== Metric / Node), Calculate Mean for 60s windows
-							// log.Println("Note: Scope 'node' requested. ")
-							query = fmt.Sprintf(`
-								from(bucket: "%s")
-								|> range(start: %s, stop: %s)
-								|> filter(fn: (r) => (%s) and (%s) )
-								|> drop(columns: ["_start", "_stop"])
-								|> group(columns: ["hostname", "_measurement"])
-		            |> aggregateWindow(every: 60s, fn: mean)
-								|> drop(columns: ["_time"])`,
-								idb.bucket,
-								idb.formatTime(job.StartTime), idb.formatTime(idb.epochToTime(job.StartTimeUnix + int64(job.Duration) + int64(1) )),
-								measurementsCond, hostsCond)
-					case "socket":
-							log.Println("Note: Scope 'socket' requested, but not yet supported: Will return 'node' scope only. ")
-							continue
-					case "core":
-						  log.Println("Note: Scope 'core' requested, but not yet supported: Will return 'node' scope only. ")
-							continue
-							// Get Finest Granularity only, Set NULL to 0.0
-							// query = fmt.Sprintf(`
-							//  	from(bucket: "%s")
-							//  	|> range(start: %s, stop: %s)
-							//  	|> filter(fn: (r) => %s )
-							//  	|> filter(fn: (r) => %s )
-							//  	|> drop(columns: ["_start", "_stop", "cluster"])
-							//  	|> map(fn: (r) => (if exists r._value then {r with _value: r._value} else {r with _value: 0.0}))`,
-							//  	idb.bucket,
-							//  	idb.formatTime(job.StartTime), idb.formatTime(idb.epochToTime(job.StartTimeUnix + int64(job.Duration) + int64(1) )),
-							//  	measurementsCond, hostsCond)
-					default:
-							log.Println("Note: Unknown Scope requested: Will return 'node' scope. ")
-							continue
-							// return nil, errors.New("the InfluxDB metric data repository does not yet support other scopes than 'node'")
-			}
-
-			rows, err := idb.queryClient.Query(ctx, query)
-			if err != nil {
-				return nil, err
-			}
-
-			// Init Metrics: Only Node level now -> TODO: Matching /check on scope level ...
-			for _, metric := range metrics {
-					jobMetric, ok := jobData[metric]
-					if !ok {
-							mc 		:= config.GetMetricConfig(job.Cluster, metric)
-							jobMetric = map[schema.MetricScope]*schema.JobMetric{
-									scope: { // uses scope var from above!
-											Unit:     mc.Unit,
-											Scope:    scope,
-											Timestep: mc.Timestep,
-											Series:   make([]schema.Series, 0, len(job.Resources)),
-											StatisticsSeries: nil, // Should be: &schema.StatsSeries{},
-									},
-							}
-					}
-					jobData[metric] = jobMetric
-			}
-
-			// Process Result: Time-Data
-		  field, host, hostSeries := "", "", schema.Series{}
-			// typeId := 0
-			switch scope {
-					case "node":
-							for rows.Next() {
-									row := rows.Record()
-									if ( host == "" || host != row.ValueByKey("hostname").(string) || rows.TableChanged() ) {
-									 		if ( host != "" ) {
-													// Append Series before reset
-									 		  	jobData[field][scope].Series = append(jobData[field][scope].Series, hostSeries)
-									 		}
-									 		field, host = row.Measurement(), row.ValueByKey("hostname").(string)
-									 		hostSeries  = schema.Series{
-									 				Hostname:   host,
-									 				Statistics: nil,
-									 				Data:       make([]schema.Float, 0),
-									 		}
-									}
-									val, ok := row.Value().(float64)
-									if ok {
-											hostSeries.Data = append(hostSeries.Data, schema.Float(val))
-									} else {
-											hostSeries.Data = append(hostSeries.Data, schema.Float(0))
-									}
-							}
-					case "socket":
-							continue
-					case "core":
-							continue
-						  // Include Series.Id in hostSeries
-							// for rows.Next() {
-							// 		row := rows.Record()
-							// 		if ( host == "" || host != row.ValueByKey("hostname").(string) || typeId != row.ValueByKey("type-id").(int) || rows.TableChanged() ) {
-							// 		 		if ( host != "" ) {
-							// 						// Append Series before reset
-							// 		 		  	jobData[field][scope].Series = append(jobData[field][scope].Series, hostSeries)
-							// 		 		}
-							// 		 		field, host, typeId = row.Measurement(), row.ValueByKey("hostname").(string), row.ValueByKey("type-id").(int)
-							// 		 		hostSeries  = schema.Series{
-							// 		 				Hostname:   host,
-							// 						Id:					&typeId,
-							// 		 				Statistics: nil,
-							// 		 				Data:       make([]schema.Float, 0),
-							// 		 		}
-							// 		}
-							// 		val := row.Value().(float64)
-							// 		hostSeries.Data = append(hostSeries.Data, schema.Float(val))
-							// }
-					default:
-							continue
-							// return nil, errors.New("the InfluxDB metric data repository does not yet support other scopes than 'node, core'")
-			}
-			// Append last Series
-		  jobData[field][scope].Series = append(jobData[field][scope].Series, hostSeries)
-	}
-
-	// Get Stats
-	stats, err := idb.LoadStats(job, metrics, ctx)
-	if err != nil {
-		return nil, err
-	}
-
-	for _, scope := range scopes {
-		if scope == "node" { // No 'socket/core' support yet
-			for metric, nodes := range stats {
-				// log.Println(fmt.Sprintf("<< Add Stats for : Field %s >>", metric))
-				for node, stats := range nodes {
-					// log.Println(fmt.Sprintf("<< Add Stats for : Host %s : Min %.2f, Max %.2f, Avg %.2f >>", node, stats.Min, stats.Max, stats.Avg ))
-					for index, _ := range jobData[metric][scope].Series {
-						// log.Println(fmt.Sprintf("<< Try to add Stats to Series in Position %d >>", index))
-						if jobData[metric][scope].Series[index].Hostname == node {
-							// log.Println(fmt.Sprintf("<< Match for Series in Position %d : Host %s >>", index, jobData[metric][scope].Series[index].Hostname))
-							jobData[metric][scope].Series[index].Statistics = &schema.MetricStatistics{Avg: stats.Avg, Min: stats.Min, Max: stats.Max}
-							// log.Println(fmt.Sprintf("<< Result Inner: Min %.2f, Max %.2f, Avg %.2f >>", jobData[metric][scope].Series[index].Statistics.Min, jobData[metric][scope].Series[index].Statistics.Max, jobData[metric][scope].Series[index].Statistics.Avg))
-						}
-					}
-				}
-			}
-		}
-	}
-
-	// DEBUG:
-	// for _, scope := range scopes {
-	// 		for _, met := range metrics {
-	// 		   for _, series := range jobData[met][scope].Series {
-	// 		   log.Println(fmt.Sprintf("<< Result: %d data points for metric %s on %s with scope %s, Stats: Min %.2f, Max %.2f, Avg %.2f >>",
-	// 				 	len(series.Data), met, series.Hostname, scope,
-	// 					series.Statistics.Min, series.Statistics.Max, series.Statistics.Avg))
-	// 		   }
-	// 		}
-	// }
-
-	return jobData, nil
-}
-
-func (idb *InfluxDBv2DataRepository) LoadStats(job *schema.Job, metrics []string, ctx context.Context) (map[string]map[string]schema.MetricStatistics, error) {
-
-	stats := map[string]map[string]schema.MetricStatistics{}
-
-	hostsConds := make([]string, 0, len(job.Resources))
-	for _, h := range job.Resources {
-			if h.HWThreads != nil || h.Accelerators != nil {
-				// TODO
-				return nil, errors.New("the InfluxDB metric data repository does not yet support HWThreads or Accelerators")
-			}
-			hostsConds = append(hostsConds, fmt.Sprintf(`r["hostname"] == "%s"`, h.Hostname))
-	}
-	hostsCond := strings.Join(hostsConds, " or ")
-
-	// lenMet := len(metrics)
-
-	for _, metric := range metrics {
-			// log.Println(fmt.Sprintf("<< You are here: %s (Index %d of %d metrics)", metric, index, lenMet))
-
-			query := fmt.Sprintf(`
-				  data = from(bucket: "%s")
-				  |> range(start: %s, stop: %s)
-				  |> filter(fn: (r) => r._measurement == "%s" and r._field == "value" and (%s))
-				  union(tables: [data |> mean(column: "_value") |> set(key: "_field", value: "avg"),
-				                 data |>  min(column: "_value") |> set(key: "_field", value: "min"),
-				                 data |>  max(column: "_value") |> set(key: "_field", value: "max")])
-				  |> pivot(rowKey: ["hostname"], columnKey: ["_field"], valueColumn: "_value")
-				  |> group()`,
-					idb.bucket,
-					idb.formatTime(job.StartTime), idb.formatTime(idb.epochToTime(job.StartTimeUnix + int64(job.Duration) + int64(1) )),
-					metric, hostsCond)
-
-			rows, err := idb.queryClient.Query(ctx, query)
-			if err != nil {
-				return nil, err
-			}
-
-			nodes := map[string]schema.MetricStatistics{}
-			for rows.Next() {
-					row  := rows.Record()
-					host := row.ValueByKey("hostname").(string)
-
-					avg, avgok  := row.ValueByKey("avg").(float64)
-					if !avgok {
-						// log.Println(fmt.Sprintf(">> Assertion error for metric %s, statistic AVG. Expected 'float64', got %v", metric, avg))
-						avg = 0.0
-					}
-					min, minok  := row.ValueByKey("min").(float64)
-					if !minok {
-						// log.Println(fmt.Sprintf(">> Assertion error for metric %s, statistic MIN. Expected 'float64', got %v", metric, min))
-						min = 0.0
-					}
-					max, maxok  := row.ValueByKey("max").(float64)
-					if !maxok {
-						// log.Println(fmt.Sprintf(">> Assertion error for metric %s, statistic MAX. Expected 'float64', got %v", metric, max))
-						max = 0.0
-					}
-
-					nodes[host] = schema.MetricStatistics{
-						Avg: avg,
-						Min: min,
-						Max: max,
-					}
-			}
-			stats[metric] = nodes
-	}
-
-	return stats, nil
-}
-
-func (idb *InfluxDBv2DataRepository) LoadNodeData(cluster string, metrics, nodes []string, scopes []schema.MetricScope, from, to time.Time, ctx context.Context) (map[string]map[string][]*schema.JobMetric, error) {
-	// TODO : Implement to be used in Analysis- und System/Node-View
-	log.Println(fmt.Sprintf("LoadNodeData unimplemented for InfluxDBv2DataRepository, Args: cluster %s, metrics %v, nodes %v, scopes %v", cluster, metrics, nodes, scopes))
-
-	return nil, errors.New("unimplemented for InfluxDBv2DataRepository")
-}