package agent

import (
	"context"
	"ycc-server/app/main/model"
	"ycc-server/common/ctxdata"
	"ycc-server/common/globalkey"
	"ycc-server/common/xerr"

	"github.com/pkg/errors"

	"ycc-server/app/main/api/internal/svc"
	"ycc-server/app/main/api/internal/types"

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

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

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

func (l *GetUpgradeListLogic) GetUpgradeList(req *types.GetUpgradeListReq) (resp *types.GetUpgradeListResp, err error) {
	userID, err := ctxdata.GetUidFromCtx(l.ctx)
	if err != nil {
		return nil, errors.Wrapf(xerr.NewErrCode(xerr.SERVER_COMMON_ERROR), "获取用户信息失败, %v", err)
	}

	// 1. 获取代理信息
	agent, err := l.svcCtx.AgentModel.FindOneByUserId(l.ctx, userID)
	if err != nil {
		if errors.Is(err, model.ErrNotFound) {
			return nil, errors.Wrapf(xerr.NewErrMsg("您不是代理"), "")
		}
		return nil, errors.Wrapf(xerr.NewErrCode(xerr.DB_ERROR), "查询代理信息失败, %v", err)
	}

	// 2. 构建查询条件
	builder := l.svcCtx.AgentUpgradeModel.SelectBuilder().
		Where("agent_id = ? AND del_state = ?", agent.Id, globalkey.DelStateNo).
		OrderBy("create_time DESC")

	// 3. 分页查询
	page := req.Page
	if page <= 0 {
		page = 1
	}
	pageSize := req.PageSize
	if pageSize <= 0 {
		pageSize = 20
	}
	offset := (page - 1) * pageSize

	// 4. 查询总数
	total, err := l.svcCtx.AgentUpgradeModel.FindCount(l.ctx, builder, "")
	if err != nil {
		return nil, errors.Wrapf(xerr.NewErrCode(xerr.DB_ERROR), "查询升级记录总数失败, %v", err)
	}

	// 5. 查询列表
	builder = builder.Limit(uint64(pageSize)).Offset(uint64(offset))
	upgrades, err := l.svcCtx.AgentUpgradeModel.FindAll(l.ctx, builder, "")
	if err != nil {
		return nil, errors.Wrapf(xerr.NewErrCode(xerr.DB_ERROR), "查询升级记录列表失败, %v", err)
	}

	// 6. 组装响应
	var list []types.UpgradeItem
	for _, upgrade := range upgrades {
		list = append(list, types.UpgradeItem{
			Id:           upgrade.Id,
			AgentId:      upgrade.AgentId,
			FromLevel:    upgrade.FromLevel,
			ToLevel:      upgrade.ToLevel,
			UpgradeType:  upgrade.UpgradeType,
			UpgradeFee:   upgrade.UpgradeFee,
			RebateAmount: upgrade.RebateAmount,
			Status:       upgrade.Status,
			CreateTime:   upgrade.CreateTime.Format("2006-01-02 15:04:05"),
		})
	}

	return &types.GetUpgradeListResp{
		Total: total,
		List:  list,
	}, nil
}