package role

import (
	"github.com/veypi/OneBD/rest"
	"oa/models"
	"oa/cfg"
)

var _ = Router.Get("/", listRoles)

type listOpts struct {
	Page     int               `parse:"query" default:"1"`
	PageSize int               `parse:"query" default:"20"`
	Keyword  string            `parse:"query" default:""`
	SortBy   string            `parse:"query" default:"created_at"`
	Order    string            `parse:"query" default:"desc"`
}

type listResponse struct {
	Total int64              `json:"total"`
	Items []*models.Role `json:"items"`
}

func listRoles(x *rest.X) (any, error) {
	// 解析参数
	opts := &listOpts{}
	if err := x.Parse(opts); err != nil {
		return nil, err
	}

	// 构建查询
	db := cfg.DB().Model(&models.Role{})
	query := db

	// 应用关键词搜索
	if opts.Keyword != "" {
		query = query.Where("name LIKE ? OR des LIKE ?", "%"+opts.Keyword+"%", "%"+opts.Keyword+"%")
	}

	// 计算总数
	var total int64
	if err := query.Count(&total).Error; err != nil {
		return nil, err
	}

	// 分页和排序
	offset := (opts.Page - 1) * opts.PageSize
	query = query.Order(opts.SortBy + " " + opts.Order)
	query = query.Offset(offset).Limit(opts.PageSize)

	// 查询数据
	var roles []*models.Role
	if err := query.Find(&roles).Error; err != nil {
		return nil, err
	}

	// 返回结果
	return &listResponse{
		Total: total,
		Items: roles,
	}, nil
}