3588AdminBackend/internal/storage/devices_repo.go

94 lines
2.5 KiB
Go

package storage
import (
"database/sql"
"encoding/json"
"time"
"3588AdminBackend/internal/models"
)
type DevicesRepo struct {
db *sql.DB
}
func NewDevicesRepo(db *sql.DB) *DevicesRepo {
return &DevicesRepo{db: db}
}
func (r *DevicesRepo) Upsert(dev *models.Device) error {
if r == nil || r.db == nil || dev == nil {
return nil
}
graphs, err := json.Marshal(dev.Graphs)
if err != nil {
return err
}
if string(graphs) == "null" {
graphs = []byte(`{}`)
}
_, err = r.db.Exec(`
INSERT INTO devices(device_id, hostname, ip, agent_port, media_port, alias, device_name, version, git_sha, build_id, last_seen_ms, online, graphs_json, updated_at)
VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
ON CONFLICT(device_id) DO UPDATE SET
hostname=excluded.hostname,
ip=excluded.ip,
agent_port=excluded.agent_port,
media_port=excluded.media_port,
alias=excluded.alias,
device_name=excluded.device_name,
version=excluded.version,
git_sha=excluded.git_sha,
build_id=excluded.build_id,
last_seen_ms=excluded.last_seen_ms,
online=excluded.online,
graphs_json=excluded.graphs_json,
updated_at=excluded.updated_at
`, dev.DeviceID, dev.Hostname, dev.IP, dev.AgentPort, dev.MediaPort, dev.DeviceAlias, dev.DeviceName, dev.Version, dev.GitSha, dev.BuildID, dev.LastSeenMs, boolToInt(dev.Online), string(graphs), time.Now().Format(time.RFC3339))
return err
}
func (r *DevicesRepo) List() ([]*models.Device, error) {
if r == nil || r.db == nil {
return nil, nil
}
rows, err := r.db.Query(`
SELECT device_id, hostname, ip, agent_port, media_port, alias, device_name, version, git_sha, build_id, last_seen_ms, online, graphs_json
FROM devices
ORDER BY updated_at DESC, device_id ASC
`)
if err != nil {
return nil, err
}
defer rows.Close()
var out []*models.Device
for rows.Next() {
var (
dev models.Device
onlineInt int
graphsJSON string
)
if err := rows.Scan(&dev.DeviceID, &dev.Hostname, &dev.IP, &dev.AgentPort, &dev.MediaPort, &dev.DeviceAlias, &dev.DeviceName, &dev.Version, &dev.GitSha, &dev.BuildID, &dev.LastSeenMs, &onlineInt, &graphsJSON); err != nil {
return nil, err
}
dev.Online = onlineInt == 1
if graphsJSON != "" && graphsJSON != "{}" {
var graphs any
if err := json.Unmarshal([]byte(graphsJSON), &graphs); err != nil {
return nil, err
}
dev.Graphs = graphs
}
out = append(out, &dev)
}
return out, rows.Err()
}
func boolToInt(v bool) int {
if v {
return 1
}
return 0
}