refactor code and improve daily cache handling of deleted VMs

internal/tasks/types.go

@@ -0,0 +1,123 @@
+package tasks
+
+import (
+	"database/sql"
+	"log/slog"
+	"time"
+
+	"vctp/db"
+	"vctp/internal/settings"
+	"vctp/internal/vcenter"
+)
+
+// CronTask stores runtime information to be used by tasks.
+type CronTask struct {
+	Logger                   *slog.Logger
+	Database                 db.Database
+	Settings                 *settings.Settings
+	VcCreds                  *vcenter.VcenterLogin
+	FirstHourlySnapshotCheck bool
+}
+
+// InventorySnapshotRow represents a single VM snapshot row.
+type InventorySnapshotRow struct {
+	InventoryId     sql.NullInt64
+	Name            string
+	Vcenter         string
+	VmId            sql.NullString
+	EventKey        sql.NullString
+	CloudId         sql.NullString
+	CreationTime    sql.NullInt64
+	DeletionTime    sql.NullInt64
+	ResourcePool    sql.NullString
+	Datacenter      sql.NullString
+	Cluster         sql.NullString
+	Folder          sql.NullString
+	ProvisionedDisk sql.NullFloat64
+	VcpuCount       sql.NullInt64
+	RamGB           sql.NullInt64
+	IsTemplate      string
+	PoweredOn       string
+	SrmPlaceholder  string
+	VmUuid          sql.NullString
+	SnapshotTime    int64
+}
+
+// snapshotTotals aliases DB snapshot totals for convenience.
+type snapshotTotals = db.SnapshotTotals
+
+type dailyAggKey struct {
+	Vcenter string
+	VmId    string
+	VmUuid  string
+	Name    string
+}
+
+type dailyAggVal struct {
+	key            dailyAggKey
+	resourcePool   string
+	datacenter     string
+	cluster        string
+	folder         string
+	isTemplate     string
+	poweredOn      string
+	srmPlaceholder string
+	creation       int64
+	firstSeen      int64
+	lastSeen       int64
+	lastDisk       float64
+	lastVcpu       int64
+	lastRam        int64
+	sumVcpu        int64
+	sumRam         int64
+	sumDisk        float64
+	samples        int64
+	tinHits        int64
+	bronzeHits     int64
+	silverHits     int64
+	goldHits       int64
+	seen           map[int64]struct{}
+	deletion       int64
+}
+
+type monthlyAggKey struct {
+	Vcenter string
+	VmId    string
+	VmUuid  string
+	Name    string
+}
+
+type monthlyAggVal struct {
+	key            monthlyAggKey
+	inventoryId    int64
+	eventKey       string
+	cloudId        string
+	resourcePool   string
+	datacenter     string
+	cluster        string
+	folder         string
+	isTemplate     string
+	poweredOn      string
+	srmPlaceholder string
+	creation       int64
+	deletion       int64
+	lastSnapshot   time.Time
+	provisioned    float64
+	vcpuCount      int64
+	ramGB          int64
+	samplesPresent int64
+	totalSamples   float64
+	sumVcpu        float64
+	sumRam         float64
+	sumDisk        float64
+	tinWeighted    float64
+	bronzeWeighted float64
+	silverWeighted float64
+	goldWeighted   float64
+}
+
+// CronTracker manages re-entry protection and status recording for cron jobs.
+type CronTracker struct {
+	db       db.Database
+	bindType int
+}