119 lines
3.7 KiB
Go
119 lines
3.7 KiB
Go
// Admin 用户管理业务：列表、新增采购员、启停和重置密码。
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package service
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import (
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"database/sql"
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"errors"
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"strings"
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"time"
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"cmautobuy/admin/model"
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"cmautobuy/admin/repository"
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)
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var ErrAdminRequired = errors.New("只有管理员可以执行此管理操作")
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// UserListResult 是用户管理页的分页结果。
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type UserListResult struct {
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Rows []model.User
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Keyword string
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Status model.UserStatus
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Page int
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Total int
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TotalPages int
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}
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// ListUsers 使用默认页容量搜索并分页。
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func ListUsers(db *sql.DB, actor *model.User, keyword string, status model.UserStatus, requestedPage int) (*UserListResult, error) {
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return ListUsersWithPageSize(db, actor, keyword, status, requestedPage, DefaultPageSize)
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}
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// ListUsersWithPageSize 按白名单页容量搜索并分页。
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func ListUsersWithPageSize(db *sql.DB, actor *model.User, keyword string, status model.UserStatus, requestedPage, pageSize int) (*UserListResult, error) {
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pageSize = NormalizePageSize(pageSize)
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if actor == nil || !actor.IsAdmin() {
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return nil, ErrAdminRequired
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}
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keyword = strings.TrimSpace(keyword)
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if status != model.UserActive && status != model.UserDisabled {
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status = ""
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}
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page := requestedPage
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if page < 1 {
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page = 1
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}
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rows, total, err := repository.ListUsers(db, keyword, status, pageSize, (page-1)*pageSize)
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if err != nil {
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return nil, err
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}
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totalPages := TotalPages(total, pageSize)
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clampedPage := ClampPage(page, totalPages)
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if clampedPage != page {
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page = clampedPage
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rows, _, err = repository.ListUsers(db, keyword, status, pageSize, (page-1)*pageSize)
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if err != nil {
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return nil, err
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}
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}
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return &UserListResult{
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Rows: rows, Keyword: keyword, Status: status,
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Page: page, Total: total, TotalPages: totalPages,
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}, nil
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}
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// CreatePurchaser 创建固定 purchaser 角色的账号，不提供第二管理员入口。
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func CreatePurchaser(db *sql.DB, actor *model.User, username, password, confirmation string, now time.Time) error {
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if actor == nil || !actor.IsAdmin() {
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return ErrAdminRequired
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}
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username = strings.TrimSpace(username)
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if err := validateUsername(username); err != nil {
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return err
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}
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hash, err := hashConfirmedPassword(password, confirmation)
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if err != nil {
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return err
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}
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userID, err := randomID("USR-", 16)
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if err != nil {
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return err
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}
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at := now.UTC().Format(model.TimeLayout)
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return repository.CreateUser(db, model.User{
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UserID: userID, Username: username, PasswordHash: string(hash),
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Role: model.RolePurchaser, Status: model.UserActive,
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PasswordChangedAt: at, CreatedAt: at, UpdatedAt: at,
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})
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}
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// ChangeUserStatus 启用或禁用账号。数据库事务负责最后管理员保护和 Session 撤销。
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func ChangeUserStatus(db *sql.DB, actor *model.User, userID string, status model.UserStatus, now time.Time) error {
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if actor == nil || !actor.IsAdmin() {
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return ErrAdminRequired
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}
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if status != model.UserActive && status != model.UserDisabled {
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return invalidInput("账号状态无效")
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}
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if strings.TrimSpace(userID) == "" {
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return invalidInput("用户编号不能为空")
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}
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return repository.SetUserStatusAndRevokeSessions(
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db, userID, status, now.UTC().Format(model.TimeLayout))
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}
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// ResetUserPassword 更新密码哈希，并在同一事务中撤销目标用户全部 Session。
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func ResetUserPassword(db *sql.DB, actor *model.User, userID, password, confirmation string, now time.Time) error {
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if actor == nil || !actor.IsAdmin() {
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return ErrAdminRequired
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}
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if strings.TrimSpace(userID) == "" {
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return invalidInput("用户编号不能为空")
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}
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hash, err := hashConfirmedPassword(password, confirmation)
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if err != nil {
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return err
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}
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return repository.ResetUserPasswordAndRevokeSessions(
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db, userID, string(hash), now.UTC().Format(model.TimeLayout))
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}
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