package product

import (
	"context"

	"perms-system-server/internal/middleware"
	"perms-system-server/internal/response"
	"perms-system-server/internal/svc"
	"perms-system-server/internal/types"
	"perms-system-server/internal/util"

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

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

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

// ProductList 产品列表。超管分页查询系统中所有产品；非超管仅能看到自己所属的那一个产品
// （防止 MEMBER 级账号枚举全站 code 列表后拼装 admin_<code> 做针对性撞库，见审计 M-2）。
func (l *ProductListLogic) ProductList(req *types.ProductListReq) (resp *types.PageResp, err error) {
	caller := middleware.GetUserDetails(l.ctx)
	if caller == nil {
		return nil, response.ErrUnauthorized("未登录")
	}

	if !caller.IsSuperAdmin {
		items := make([]types.ProductItem, 0, 1)
		if caller.ProductCode != "" {
			p, err := l.svcCtx.SysProductModel.FindOneByCode(l.ctx, caller.ProductCode)
			if err == nil {
				items = append(items, types.ProductItem{
					Id:         p.Id,
					Code:       p.Code,
					Name:       p.Name,
					Remark:     p.Remark,
					Status:     p.Status,
					CreateTime: p.CreateTime,
				})
			}
		}
		return &types.PageResp{Total: int64(len(items)), List: items}, nil
	}

	page, pageSize := util.NormalizePage(req.Page, req.PageSize)

	list, total, err := l.svcCtx.SysProductModel.FindList(l.ctx, page, pageSize)
	if err != nil {
		return nil, err
	}

	items := make([]types.ProductItem, 0, len(list))
	for _, p := range list {
		items = append(items, types.ProductItem{
			Id:         p.Id,
			Code:       p.Code,
			Name:       p.Name,
			AppKey:     p.AppKey,
			Remark:     p.Remark,
			Status:     p.Status,
			CreateTime: p.CreateTime,
		})
	}

	return &types.PageResp{
		Total: total,
		List:  items,
	}, nil
}