// Copyright 2022 E99p1ant. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.

package auth

import (
	"github.com/flamego/recaptcha"
	"github.com/pkg/errors"
	"github.com/sirupsen/logrus"

	"github.com/tamakyi/TamaBox/internal/captcha"
	"github.com/tamakyi/TamaBox/internal/conf"
	"github.com/tamakyi/TamaBox/internal/context"
	"github.com/tamakyi/TamaBox/internal/db"
	"github.com/tamakyi/TamaBox/internal/form"
	"github.com/tamakyi/TamaBox/internal/i18n"
	"github.com/tamakyi/TamaBox/internal/shared"
)

func Register(ctx context.Context) {
	ctx.Success("auth/register")
}

func RegisterAction(ctx context.Context, f form.Register, recaptcha recaptcha.RecaptchaV3) {
	if ctx.HasError() {
		ctx.Success("auth/register")
		return
	}

	// Check captcha code (unified: recaptcha, turnstile, or math).
	ok, err := captcha.Verify(f.Recaptcha, shared.ResolveClientIP(ctx.Request().Request), ctx.Session, recaptcha, ctx.Lang())
	if err != nil {
		logrus.WithContext(ctx.Request().Context()).WithError(err).Error("Failed to check captcha")
		ctx.SetErrorFlash(err.Error())
		ctx.Redirect("/register")
		return
	}
	if !ok {
		ctx.SetErrorFlash(i18n.T(ctx.Lang(), "captcha.error"))
		ctx.Redirect("/register")
		return
	}

	if err := db.Users.Create(ctx.Request().Context(), db.CreateUserOptions{
		Name:                 f.Name,
		Password:             f.Password,
		Email:                f.Email,
		Avatar:               conf.Upload.DefaultAvatarURL,
		Domain:               f.Domain,
		Background:           conf.Upload.DefaultBackground,
		Intro:                "问你想问的",
		Qrcodebackcolor:      "#FDF8F0",
		Qrcodecolor:          "#C45500",
		Usernamecolor:        "#000000",
		Introcolor:           "#000000",
		Dotscale:             "0.35",
		BackgroundImage:      conf.Upload.DefaultBackgroundImageURL,
		Backgroundimagealpha: "0.8",
		Qrcodepdpcolor:       "#C45500",
		Acfunlink:            "none",
		Bililink:             "none",
		Weibolink:            "none",
		Bloglink:             "box.shiroko.one",
		Xiaohongshulink:      "none",
		Language:             i18n.Resolve(f.Language), // 注册时选择的界面语言；留空回退站点默认
	}); err != nil {
		switch {
		case errors.Is(err, db.ErrDuplicateEmail):
			ctx.SetError(errors.New(i18n.T(ctx.Lang(), "auth.errDuplicateEmail")))
		case errors.Is(err, db.ErrDuplicateDomain):
			ctx.SetError(errors.New(i18n.T(ctx.Lang(), "auth.errDuplicateDomain")))
		case errors.Is(err, db.ErrBadCredential):
			ctx.SetError(errors.New(i18n.T(ctx.Lang(), "auth.errBadCredential")))

		default:
			logrus.WithContext(ctx.Request().Context()).WithError(err).Error("Failed to create new user")
			ctx.SetInternalError()
		}

		ctx.Success("auth/register")
		return
	}

	// 成功提示跟随用户注册时选择的语言
	lang := "zh-CN"
	if l, ok := ctx.Data["Lang"].(string); ok && l != "" {
		lang = l
	}
	ctx.SetSuccessFlash(i18n.T(lang, "auth.register.success"))
	ctx.Redirect("/login")
}