67 lines
1.8 KiB
Go
67 lines
1.8 KiB
Go
package domain
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import (
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"errors"
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"regexp"
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"strings"
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"time"
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"unicode"
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"unicode/utf8"
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)
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const DefaultProjectID = "default"
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var projectIDPattern = regexp.MustCompile(`^[a-z0-9][a-z0-9_-]{0,35}$`)
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func ValidProjectID(id string) bool {
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return projectIDPattern.MatchString(id)
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}
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type Project struct {
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ID string `json:"id"`
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Name string `json:"name"`
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Description string `json:"description"`
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CreatedAt time.Time `json:"created_at"`
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UpdatedAt time.Time `json:"updated_at"`
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}
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func NewProject(name, description string) (Project, error) {
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now := time.Now().UTC()
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item := (Project{
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ID: NewID(), Name: name, Description: description,
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CreatedAt: now, UpdatedAt: now,
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}).Normalize()
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if err := item.Validate(); err != nil {
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return Project{}, err
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}
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return item, nil
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}
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func (p Project) Normalize() Project {
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p.ID = strings.TrimSpace(p.ID)
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p.Name = strings.TrimSpace(p.Name)
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p.Description = strings.TrimSpace(p.Description)
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return p
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}
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func (p Project) Validate() error {
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if !ValidProjectID(p.ID) {
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return errors.New("项目 ID 必须为 1～36 位小写字母、数字、连字符或下划线，并以字母或数字开头")
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}
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if !utf8.ValidString(p.Name) || strings.TrimSpace(p.Name) == "" || utf8.RuneCountInString(p.Name) > 128 {
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return errors.New("项目名称必须为 1～128 个字符")
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}
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if strings.ContainsFunc(p.Name, unicode.IsControl) {
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return errors.New("项目名称不能包含控制字符")
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}
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if !utf8.ValidString(p.Description) || utf8.RuneCountInString(p.Description) > 4096 {
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return errors.New("项目说明不能超过 4096 个字符")
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}
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if strings.ContainsFunc(p.Description, func(r rune) bool {
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return unicode.IsControl(r) && r != '\n' && r != '\r' && r != '\t'
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}) {
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return errors.New("项目说明包含无效控制字符")
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}
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return nil
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}
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