package srv_user

import (
	"context"
	"time"
	"videoweb/pub/common/srvdef"
	"videoweb/pub/models/usermod"

	"go.mongodb.org/mongo-driver/bson"
	"go.mongodb.org/mongo-driver/mongo/options"
)

// GetUsers 分页查询用户列表
func GetUsers(ctx context.Context, req *UserListReq) (*UserListResp, *srvdef.SrvErr) {
	filter := bson.M{}
	if req.Id != nil && *req.Id > 0 {
		filter[usermod.FN.User.Id] = *req.Id
	}
	if req.NickName != "" {
		filter[usermod.FN.User.NickName] = bson.M{"$regex": req.NickName}
	}
	if req.Status != nil {
		filter[usermod.FN.User.Status] = *req.Status
	}

	opts := options.Find().
		SetSort(bson.M{usermod.FN.User.Id: -1}).
		SetSkip((req.PageNum - 1) * req.PageSize).
		SetLimit(req.PageSize)

	resp := &UserListResp{}
	total, serr := usermod.CountUsers(ctx, filter)
	if serr != nil {
		return resp, serr
	}
	resp.Total = total
	if total == 0 {
		return resp, nil
	}
	list, serr := usermod.FindManyUser(ctx, filter, opts)
	if serr != nil {
		return resp, serr
	}
	resp.List = list
	return resp, nil
}

// UpdateUser 更新指定用户信息
func UpdateUser(ctx context.Context, id int64, param usermod.UserUpdate) *srvdef.SrvErr {
	now := time.Now()
	param.UpdatedAt = &now
	return usermod.UpdateOneUser(ctx,
		bson.M{usermod.FN.User.Id: id},
		bson.M{"$set": param},
	)
}