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context.go
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context.go
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// Copyright 2023 Stacklok, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package engine
import (
"context"
"fmt"
"github.com/google/uuid"
"github.com/stacklok/minder/internal/db"
"github.com/stacklok/minder/internal/providers"
)
type key int
const (
// EntityContextKey is the key used to store the entity context in the golang Context
// object for a given API call.
entityContextKey key = iota
)
// WithEntityContext stores an EntityContext in the current context.
func WithEntityContext(ctx context.Context, c *EntityContext) context.Context {
return context.WithValue(ctx, entityContextKey, c)
}
// EntityFromContext extracts the current EntityContext, WHICH MAY BE NIL!
func EntityFromContext(ctx context.Context) EntityContext {
ec, _ := ctx.Value(entityContextKey).(*EntityContext)
if ec == nil {
return EntityContext{}
}
return *ec
}
// Project is a construct relevant to an entity's context.
// This is relevant for getting the full information about an entity.
type Project struct {
ID uuid.UUID
}
// Provider is a construct relevant to an entity's context.
// This is relevant for getting the full information about an entity.
type Provider struct {
Name string
}
// EntityContext is the context of an entity.
// This is relevant for getting the full information about an entity.
type EntityContext struct {
Project Project
Provider Provider
}
// Validate validates that the entity context contains values that are present in the DB
func (c *EntityContext) Validate(ctx context.Context, q db.Querier, providerStore providers.ProviderStore) error {
_, err := q.GetProjectByID(ctx, c.Project.ID)
if err != nil {
return fmt.Errorf("unable to get context: failed getting project: %w", err)
}
_, err = providerStore.GetByName(ctx, c.Project.ID, c.Provider.Name)
if err != nil {
return fmt.Errorf("unable to get context: failed getting provider: %w", err)
}
return nil
}
// ValidateProject validates that the entity context contains a project that is present in the DB
func (c *EntityContext) ValidateProject(ctx context.Context, q db.Querier) error {
_, err := q.GetProjectByID(ctx, c.Project.ID)
if err != nil {
return fmt.Errorf("unable to get context: failed getting project: %w", err)
}
return nil
}