/
app.go
172 lines (134 loc) · 3.22 KB
/
app.go
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package app
import (
"errors"
"io/fs"
"log/slog"
"os"
"time"
"github.com/alexedwards/scs/v2"
"github.com/cat-dealer/go-rand/v2"
"github.com/fsouza/slognil"
"github.com/jovandeginste/workout-tracker/pkg/database"
"github.com/labstack/echo/v4"
"github.com/lmittmann/tint"
"github.com/mattn/go-isatty"
"gorm.io/gorm"
"github.com/vorlif/spreak"
"github.com/vorlif/spreak/humanize"
)
type Version struct {
BuildTime string
Ref string
RefName string
RefType string
Sha string
}
type App struct {
Version Version
Config database.Config
Assets fs.FS
Views fs.FS
Translations fs.FS
echo *echo.Echo
logger *slog.Logger
rawLogger *slog.Logger
db *gorm.DB
sessionManager *scs.SessionManager
translator *spreak.Bundle
humanizer *humanize.Collection
}
func (a *App) jwtSecret() []byte {
if a.Config.JWTEncryptionKey == "" {
a.logger.Error("JWTEncryptionKey is not set; generating a random string at startup")
a.Config.JWTEncryptionKey = rand.String(32, rand.GetAlphaNumericPool())
}
return []byte(a.Config.JWTEncryptionKey)
}
func (a *App) Serve() error {
go a.BackgroundWorker()
a.logger.Info("Starting web server on " + a.Config.Bind)
return a.echo.Start(a.Config.Bind)
}
func (a *App) Configure() error {
if err := a.ReadConfiguration(); err != nil {
return err
}
a.ConfigureLogger()
if err := a.ConfigureLocalizer(); err != nil {
return err
}
if err := a.ConfigureDatabase(); err != nil {
return err
}
if err := a.Config.UpdateFromDatabase(a.db); err != nil {
return err
}
if err := a.ConfigureWebserver(); err != nil {
return err
}
return nil
}
func (a *App) ConfigureDatabase() error {
a.logger.Info("Connecting to the database '" + a.Config.DatabaseDriver + "': " + a.Config.DSN)
db, err := database.Connect(a.Config.DatabaseDriver, a.Config.DSN, a.Config.Debug, a.rawLogger)
if err != nil {
return err
}
if a.Config.Debug {
db = db.Debug()
}
a.db = db
err = db.First(&database.User{}).Error
if err == nil {
return nil
}
if !errors.Is(err, gorm.ErrRecordNotFound) {
return err
}
return a.createAdminUser()
}
func newLogger(enabled bool) *slog.Logger {
if !enabled {
return slognil.NewLogger()
}
return slog.New(newLogHandler())
}
func newLogHandler() slog.Handler {
w := os.Stdout
if isatty.IsTerminal(w.Fd()) {
return tint.NewHandler(os.Stdout, &tint.Options{
Level: slog.LevelDebug,
TimeFormat: time.Kitchen,
})
}
return slog.NewJSONHandler(w, nil)
}
func (a *App) ConfigureLogger() {
logger := newLogger(a.Config.Logging).
With("app", "workout-tracker").
With("version", a.Version.RefName).
With("sha", a.Version.Sha)
a.rawLogger = logger
a.logger = logger.With("module", "app")
}
func NewApp(version Version) *App {
return &App{
Version: version,
logger: newLogger(false),
rawLogger: newLogger(false),
}
}
func (a *App) createAdminUser() error {
u := &database.User{
Username: "admin",
Name: "Administrator",
Active: true,
Admin: true,
}
if err := u.SetPassword("admin"); err != nil {
return err
}
a.logger.Warn("Creating admin user '" + u.Username + "', with password 'admin'")
u.Profile.User = u
return u.Create(a.db)
}