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path: root/pkg/view/auth.go
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package view

import (
	"encoding/base64"
	"net/http"

	"git.sr.ht/~gabrielgio/img/pkg/ext"
	"git.sr.ht/~gabrielgio/img/pkg/service"
	"git.sr.ht/~gabrielgio/img/templates"
)

type AuthView struct {
	userController *service.AuthController
}

func NewAuthView(userController *service.AuthController) *AuthView {
	return &AuthView{
		userController: userController,
	}
}

func (v *AuthView) LoginView(w http.ResponseWriter, r *http.Request) error {
	templates.WritePageTemplate(w, &templates.LoginPage{})
	return nil
}

func (v *AuthView) Logout(w http.ResponseWriter, r *http.Request) error {
	cook := http.Cookie{
		Name:     "auth",
		Value:    "",
		MaxAge:   -1,
		HttpOnly: true,
		SameSite: http.SameSiteDefaultMode,
	}
	http.SetCookie(w, &cook)

	http.Redirect(w, r, "/", http.StatusTemporaryRedirect)
	return nil
}

func (v *AuthView) Login(w http.ResponseWriter, r *http.Request) error {
	var (
		username = []byte(r.FormValue("username"))
		password = []byte(r.FormValue("password"))
	)

	auth, err := v.userController.Login(r.Context(), username, password)
	if err != nil {
		return err
	}

	base64Auth := base64.StdEncoding.EncodeToString(auth)

	cook := http.Cookie{
		Name:     "auth",
		Value:    base64Auth,
		HttpOnly: true,
		SameSite: http.SameSiteDefaultMode,
	}
	http.SetCookie(w, &cook)

	redirect := r.FormValue("redirect")
	if redirect == "" {
		http.Redirect(w, r, "/", http.StatusTemporaryRedirect)
	} else {
		http.Redirect(w, r, redirect, http.StatusTemporaryRedirect)
	}
	return nil
}

func Index(w http.ResponseWriter, r *http.Request) {
	http.Redirect(w, r, "/login", http.StatusTemporaryRedirect)
}

func (v *AuthView) InitialRegisterView(w http.ResponseWriter, r *http.Request) error {
	templates.WritePageTemplate(w, &templates.RegisterPage{})
	return nil
}

func (v *AuthView) InitialRegister(w http.ResponseWriter, r *http.Request) error {
	var (
		username = []byte(r.FormValue("username"))
		password = []byte(r.FormValue("password"))
		path     = []byte(r.FormValue("path"))
	)

	err := v.userController.InitialRegister(r.Context(), username, password, path)
	if err != nil {
		return err
	}

	http.Redirect(w, r, "/login", http.StatusTemporaryRedirect)
	return nil
}

func (v *AuthView) SetMyselfIn(r *ext.Router) {
	r.GET("/login", v.LoginView)
	r.POST("/login", v.Login)

	r.GET("/logout", v.Logout)
	r.POST("/logout", v.Logout)

	r.GET("/initial", v.InitialRegisterView)
	r.POST("/initial", v.InitialRegister)
}