package middlewares

import (
	"strings"

	"backend/providers/wechat"

	"github.com/gofiber/fiber/v3"
	"github.com/pkg/errors"
	log "github.com/sirupsen/logrus"
)

func (f *Middlewares) WeChatAuth(c fiber.Ctx) error {
	log.WithField("module", "middleware.AuthUserInfo").Debugf("%s, query: %v", c.OriginalURL(), c.Queries())
	state := c.Query("state")
	code := c.Query("code")
	log.WithField("module", "middleware.AuthUserInfo").Debugf("code: %s, state: %s", code, state)

	if state == "" && code == "" {
		url := string(c.Request().URI().FullURI())
		if f.app.IsDevMode() && f.app.BaseURI != nil {
			url = strings.ReplaceAll(url, "http", "https")
			url = strings.ReplaceAll(url, c.BaseURL(), *f.app.BaseURI)
		}

		log.WithField("module", "middleware.SilentAuth").Debug("redirect_uri: ", url)

		to, err := f.client.ScopeAuthorizeURL(
			wechat.ScopeAuthorizeURLWithRedirectURI(url),
			wechat.ScopeAuthorizeURLWithState("sns_basic_auth"),
		)
		if err != nil {
			return errors.Wrap(err, "failed to get wechat auth url")
		}
		log.WithField("module", "middleware.SilentAuth").Debug("redirectTo: ", to.String())

		return c.Redirect().To(to.String())

	}

	if state != "sns_basic_auth" || code == "" {
		return errors.New("invalid request")
	}

	return c.Next()
}