package server

import (
	"fmt"
	"net/http"
	"net/url"

	"github.com/gin-gonic/gin"
)

// GetGoogleAuthUrlHandlerV2 fetches a Google authentication URl and returns it.
// This function is atomic and cannot fail.
func (s *Server) GetGoogleAuthUrlHandlerV2(ctx *gin.Context) {
	url := s.deps.AuthService.GetGoogleAuthUrl()
	ctx.JSON(http.StatusOK, gin.H{
		"status": http.StatusOK,
		"message": "[OK] Successfully retrieved Google auth URL.",
		"url": url,
	})
}


// GoogleCallbackHandlerV2 reads the data from the Google redirection and uses it
// to generate a JWT which is sent back to the UI via a URL query parameter. If an 
// error occurs the user will be directed to the login page with an error query param.
func (s *Server) GoogleCallbackHandlerV2(ctx *gin.Context) {
	var (
		state string = ctx.Query("state")
		code  string = ctx.Query("code")
	)

	if jwt, err := s.deps.AuthService.GoogleAuthSuccess(state, code); err != nil {
		url := fmt.Sprintf("http://localhost:5173/v2/web/login?error=%s", url.QueryEscape(err.Error()))
		ctx.Redirect(http.StatusSeeOther, url)
	} else {
		url := fmt.Sprintf("http://localhost:5173/v2/web/home?token=%s", jwt)
		ctx.Redirect(http.StatusSeeOther, url)
	}
}