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// Copyright 2024 The Forgejo Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package quota
import (
"context"
"slices"
"code.gitea.io/gitea/models/db"
)
type Rule struct {
Name string `xorm:"pk not null" json:"name,omitempty"`
Limit int64 `xorm:"NOT NULL" binding:"Required" json:"limit"`
Subjects LimitSubjects `json:"subjects,omitempty"`
}
func (r *Rule) TableName() string {
return "quota_rule"
}
func (r Rule) Evaluate(used Used, forSubject LimitSubject) (bool, bool) {
// If there's no limit, short circuit out
if r.Limit == -1 {
return true, true
}
// If the rule does not cover forSubject, bail out early
if !slices.Contains(r.Subjects, forSubject) {
return false, false
}
var sum int64
for _, subject := range r.Subjects {
sum += used.CalculateFor(subject)
}
return sum <= r.Limit, true
}
func (r *Rule) Edit(ctx context.Context, limit *int64, subjects *LimitSubjects) (*Rule, error) {
cols := []string{}
if limit != nil {
r.Limit = *limit
cols = append(cols, "limit")
}
if subjects != nil {
r.Subjects = *subjects
cols = append(cols, "subjects")
}
_, err := db.GetEngine(ctx).Where("name = ?", r.Name).Cols(cols...).Update(r)
return r, err
}
func GetRuleByName(ctx context.Context, name string) (*Rule, error) {
var rule Rule
has, err := db.GetEngine(ctx).Where("name = ?", name).Get(&rule)
if err != nil {
return nil, err
}
if !has {
return nil, nil
}
return &rule, err
}
func ListRules(ctx context.Context) ([]Rule, error) {
var rules []Rule
err := db.GetEngine(ctx).Find(&rules)
return rules, err
}
func DoesRuleExist(ctx context.Context, name string) (bool, error) {
return db.GetEngine(ctx).
Where("name = ?", name).
Get(&Rule{})
}
func CreateRule(ctx context.Context, name string, limit int64, subjects LimitSubjects) (*Rule, error) {
ctx, committer, err := db.TxContext(ctx)
if err != nil {
return nil, err
}
defer committer.Close()
exists, err := DoesRuleExist(ctx, name)
if err != nil {
return nil, err
} else if exists {
return nil, ErrRuleAlreadyExists{Name: name}
}
rule := Rule{
Name: name,
Limit: limit,
Subjects: subjects,
}
_, err = db.GetEngine(ctx).Insert(rule)
if err != nil {
return nil, err
}
return &rule, committer.Commit()
}
func DeleteRuleByName(ctx context.Context, name string) error {
ctx, committer, err := db.TxContext(ctx)
if err != nil {
return err
}
defer committer.Close()
_, err = db.GetEngine(ctx).Delete(GroupRuleMapping{
RuleName: name,
})
if err != nil {
return err
}
_, err = db.GetEngine(ctx).Delete(Rule{Name: name})
if err != nil {
return err
}
return committer.Commit()
}
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