arimelody.me/log/log.go

130 lines
3.4 KiB
Go

package log
import (
"fmt"
"os"
"time"
"github.com/jmoiron/sqlx"
)
type (
Logger struct {
DB *sqlx.DB
}
Log struct {
ID string `json:"id" db:"id"`
Level LogLevel `json:"level" db:"level"`
Type string `json:"type" db:"type"`
Content string `json:"content" db:"content"`
CreatedAt time.Time `json:"created_at" db:"created_at"`
}
)
const (
TYPE_ACCOUNT string = "account"
TYPE_MUSIC string = "music"
TYPE_BLOG string = "blog"
TYPE_ARTWORK string = "artwork"
TYPE_MISC string = "misc"
)
type LogLevel int
const (
LEVEL_INFO LogLevel = 0
LEVEL_WARN LogLevel = 1
)
const DEFAULT_LOG_PAGE_LENGTH = 25
func (self *Logger) Info(logType string, format string, args ...any) {
logString := fmt.Sprintf(format, args...)
fmt.Printf("[%s] INFO: %s", logType, logString)
err := createLog(self.DB, LEVEL_INFO, logType, logString)
if err != nil {
fmt.Fprintf(os.Stderr, "WARN: Failed to push log to database: %v\n", err)
}
}
func (self *Logger) Warn(logType string, format string, args ...any) {
logString := fmt.Sprintf(format, args...)
fmt.Fprintf(os.Stderr, "[%s] WARN: %s", logType, logString)
err := createLog(self.DB, LEVEL_WARN, logType, logString)
if err != nil {
fmt.Fprintf(os.Stderr, "WARN: Failed to push log to database: %v\n", err)
}
}
func (self *Logger) Fatal(logType string, format string, args ...any) {
fmt.Fprintf(os.Stderr, fmt.Sprintf("[%s] FATAL: %s", logType, format), args...)
// we won't need to push fatal logs to DB, as these usually precede a panic or crash
}
func (self *Logger) Fetch(id string) (*Log, error) {
log := Log{}
err := self.DB.Get(&log, "SELECT * FROM auditlog WHERE id=$1", id)
return &log, err
}
func (self *Logger) Search(levelFilters []LogLevel, typeFilters []string, content string, offset int, limit int) ([]*Log, error) {
logs := []*Log{}
params := []any{ limit, offset }
conditions := ""
if len(content) > 0 {
content = "%" + content + "%"
conditions += " WHERE content LIKE $3"
params = append(params, content)
}
if len(levelFilters) > 0 {
conditions += " AND level IN ("
for i := range levelFilters {
conditions += fmt.Sprintf("$%d", len(params) + 1)
if i < len(levelFilters) - 1 {
conditions += ","
}
params = append(params, levelFilters[i])
}
conditions += ")"
}
if len(typeFilters) > 0 {
conditions += " AND type IN ("
for i := range typeFilters {
conditions += fmt.Sprintf("$%d", len(params) + 1)
if i < len(typeFilters) - 1 {
conditions += ","
}
params = append(params, typeFilters[i])
}
conditions += ")"
}
query := fmt.Sprintf(
"SELECT * FROM auditlog%s ORDER BY created_at DESC LIMIT $1 OFFSET $2",
conditions,
)
// TODO: remove after testing
fmt.Println(query)
err := self.DB.Select(&logs, query, params...)
if err != nil {
return nil, err
}
return logs, nil
}
func createLog(db *sqlx.DB, logLevel LogLevel, logType string, content string) error {
_, err := db.Exec(
"INSERT INTO auditlog (level, type, content) VALUES ($1,$2,$3)",
logLevel,
logType,
content,
)
return err
}