package logic

import (
	"context"

	"lone-services/pkg/utils"
	"lone-services/pkg/validate"
	user "lone-services/rpc/user/pb"
	userconfig "lone-services/services/user/internal/config"
	"lone-services/services/user/internal/dao"
	"lone-services/services/user/internal/svc"
	"lone-services/services/user/validator"

	"github.com/zeromicro/go-zero/core/logx"
)

type GetOpenidLogic struct {
	ctx    context.Context
	svcCtx *svc.ServiceContext
	logx.Logger
}

func NewGetOpenidLogic(ctx context.Context, svcCtx *svc.ServiceContext) *GetOpenidLogic {
	return &GetOpenidLogic{
		ctx:    ctx,
		svcCtx: svcCtx,
		Logger: logx.WithContext(ctx),
	}
}

func (l *GetOpenidLogic) GetOpenid(in *user.GetOpenidReq) (*user.Response, error) {
	loginUser := utils.GetUserFromCtx(l.ctx)
	if loginUser.ID < utils.NumberOne {
		return failResponse(utils.ErrorNoLoginInfo), nil
	}

	var req validator.GetOpenidValidator
	if msg := validate.ValidateFromProto(in, &req); msg != utils.StringEmpty {
		return outResponse(utils.ErrorParams, msg), nil
	}
	if loginUser.ClientCode == utils.StringEmpty {
		return outResponse(utils.ErrorParams, "端编码不能为空"), nil
	}

	if _, err := loadEnabledClient(loginUser.ClientCode); err != nil {
		l.Errorf("get openid load client: %v", err)
		return failResponse(utils.Fail), nil
	}

	wxCfg, cfgErr := userconfig.LoadWechatConfig(loginUser.ClientCode)
	if cfgErr != nil {
		l.Errorf("get openid wechat config: %v", cfgErr)
		return outResponse(utils.Fail, "微信配置缺失"), nil
	}

	session, wxErr := wxCfg.NewAuthClient().Code2Session(req.Code)
	if wxErr != nil {
		l.Errorf("get openid code2session: %v", wxErr)
		return outResponse(utils.Fail, "获取openid失败"), nil
	}

	return okResponse(dao.OpenidResult{
		Openid:  session.OpenID,
		Unionid: session.UnionID,
	}), nil
}