// Code scaffolded by goctl. Safe to edit.
// goctl 1.9.2

package agent

import (
	"context"
	"encoding/base64"
	"fmt"

	"qnc-server/app/main/api/internal/svc"
	"qnc-server/app/main/api/internal/types"
	"qnc-server/common/xerr"

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

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

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

func (l *GenerateInvitePosterLogic) GenerateInvitePoster(req *types.GenerateInvitePosterReq) (resp *types.GenerateInvitePosterResp, err error) {
	if req.InviteLink == "" {
		return nil, errors.Wrapf(xerr.NewErrMsg("邀请链接不能为空"), "")
	}

	// 调用ImageService生成海报
	imageData, mimeType, err := l.svcCtx.ImageService.ProcessImageWithQRCode("invitation", req.InviteLink)
	if err != nil {
		l.Errorf("生成邀请海报失败: %v", err)
		return nil, errors.Wrapf(xerr.NewErrCode(xerr.SERVER_COMMON_ERROR), "生成海报失败: %v", err)
	}

	// 将图片数据转换为base64编码的data URL
	base64Data := base64.StdEncoding.EncodeToString(imageData)
	posterUrl := fmt.Sprintf("data:%s;base64,%s", mimeType, base64Data)

	return &types.GenerateInvitePosterResp{
		PosterUrl: posterUrl,
	}, nil
}