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app.go
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app.go
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package app
import (
"fmt"
"log"
"net/http"
"os"
"time"
"github.com/crispgm/read-track/internal/infra"
"github.com/crispgm/read-track/internal/model"
"github.com/gin-contrib/sessions"
"github.com/gin-gonic/gin"
"github.com/osteele/liquid"
"github.com/rs/zerolog"
"gorm.io/gorm"
)
// Application globals
type Application struct {
path string
conf *infra.Conf
db *gorm.DB
loc *time.Location
authenticator *infra.Authenticator
logger zerolog.Logger
}
// Init globals
func (app *Application) Init(workingPath string) error {
var err error
app.path = workingPath
app.conf, err = infra.LoadConf(workingPath)
if err != nil {
return err
}
app.db, err = infra.LoadDB(app.conf.DB)
if err != nil {
return err
}
app.loc, err = time.LoadLocation(app.conf.Timezone)
if err != nil {
return err
}
app.authenticator, err = infra.InitAuthenticator(app.Conf().Auth0)
if err != nil {
return err
}
if !app.conf.IsDev() {
app.logger = zerolog.New(os.Stderr).Level(zerolog.InfoLevel).With().Timestamp().Logger()
gin.SetMode(gin.ReleaseMode)
} else {
app.logger = zerolog.New(os.Stderr).Level(zerolog.DebugLevel).With().Timestamp().Logger()
}
return nil
}
// Conf getter
func (app Application) Conf() *infra.Conf {
return app.conf
}
// DB returns DB instance
func (app Application) DB() *gorm.DB {
if app.conf.IsDev() {
return app.db.Debug()
}
return app.db
}
// AutoMigrate migrate gorm DB
func (app Application) AutoMigrate() error {
err := app.db.AutoMigrate(
&model.Article{},
)
return err
}
func (app Application) getTemplate(template string) ([]byte, error) {
return os.ReadFile(fmt.Sprintf("%s/templates/%s", app.path, template))
}
// RenderHTML with Liquid
func (app Application) RenderHTML(c *gin.Context, template string, bindings liquid.Bindings) error {
engine := liquid.NewEngine()
tpl, err := app.getTemplate(template)
if err != nil {
log.Fatalln(err)
return err
}
content, err := engine.ParseAndRender(tpl, bindings)
if err != nil {
log.Fatalln(err)
return err
}
if layout, ok := bindings["layout"]; ok {
if layoutName, ok := layout.(string); ok {
layoutTpl, err := app.getTemplate(fmt.Sprintf("layout/%s.liquid", layoutName))
if err != nil {
log.Fatalln(err)
return err
}
bindings["content"] = content
contentWithLayout, err := engine.ParseAndRender(layoutTpl, bindings)
if err != nil {
log.Fatalln(err)
return err
}
c.Data(http.StatusOK, "text/html; charset=utf-8", contentWithLayout)
return err
}
}
c.Data(http.StatusOK, "text/html; charset=utf-8", content)
return err
}
// GetUserInfo .
func (app Application) GetUserInfo(ctx *gin.Context) *model.User {
session := sessions.Default(ctx)
profile := session.Get("profile")
if profile != nil {
if info, ok := profile.(map[string]interface{}); ok {
user := &model.User{
Name: info["name"].(string),
Nickname: info["nickname"].(string),
Picture: info["picture"].(string),
Sub: info["sub"].(string),
}
return user
}
}
return nil
}
// IsAuthenticated .
func (app Application) IsAuthenticated(ctx *gin.Context) {
user := app.GetUserInfo(ctx)
if user == nil || user.Sub != app.Conf().Auth0.UserID {
ctx.Redirect(http.StatusSeeOther, "/login")
} else {
ctx.Next()
}
}