feat(generate): Provided module (#5)

.github/workflows/coverage.yml

@@ -21,6 +21,7 @@ jobs:
       matrix:
         module:
         - "config"
+        - "generate"
         - "log"
 
     runs-on: ubuntu-latest

.github/workflows/generate-ci.yml

@@ -0,0 +1,31 @@
+name: "generate-ci"
+
+on:
+    push:
+        branches:
+            - "feat**"
+            - "fix**"
+            - "hotfix**"
+            - "chore**"
+        paths:
+            - "generate/**.go"
+            - "generate/go.mod"
+            - "generate/go.sum"
+    pull_request:
+        types:
+            - opened
+            - synchronize
+            - reopened
+        branches:
+            - main
+        paths:
+            - "generate/**.go"
+            - "generate/go.mod"
+            - "generate/go.sum"
+
+jobs:
+    ci:
+        uses: ./.github/workflows/common-ci.yml
+        secrets: inherit
+        with:
+            module: "generate"

README.md

@@ -1,6 +1,6 @@
 # Yokai
 
-[![Go version](https://img.shields.io/badge/go-%3E%3D1.20-blue)](https://go.dev/)
+[![Go version](https://img.shields.io/badge/Go-1.20-blue)](https://go.dev/)
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
 
 > Simple, modular, and observable Go framework.

generate/.golangci.yml

@@ -0,0 +1,66 @@
+run:
+  timeout: 5m
+  concurrency: 8
+
+linters:
+  enable:
+    - asasalint
+    - asciicheck
+    - bidichk
+    - bodyclose
+    - containedctx
+    - contextcheck
+    - cyclop
+    - decorder
+    - dogsled
+    - dupl
+    - durationcheck
+    - errcheck
+    - errchkjson
+    - errname
+    - errorlint
+    - exhaustive
+    - forbidigo
+    - forcetypeassert
+    - gocognit
+    - goconst
+    - gocritic
+    - gocyclo
+    - godot
+    - godox
+    - gofmt
+    - goheader
+    - gomoddirectives
+    - gomodguard
+    - goprintffuncname
+    - gosec
+    - gosimple
+    - govet
+    - grouper
+    - importas
+    - ineffassign
+    - interfacebloat
+    - logrlint
+    - maintidx
+    - makezero
+    - misspell
+    - nestif
+    - nilerr
+    - nilnil
+    - nlreturn
+    - nolintlint
+    - nosprintfhostport
+    - prealloc
+    - predeclared
+    - promlinter
+    - reassign
+    - staticcheck
+    - tenv
+    - thelper
+    - tparallel
+    - typecheck
+    - unconvert
+    - unparam
+    - unused
+    - usestdlibvars
+    - whitespace

generate/README.md

@@ -0,0 +1,72 @@
+# Generate Module
+
+[![ci](https://github.com/ankorstore/yokai/actions/workflows/generate-ci.yml/badge.svg)](https://github.com/ankorstore/yokai/actions/workflows/generate-ci.yml)
+[![go report](https://goreportcard.com/badge/github.com/ankorstore/yokai/generate)](https://goreportcard.com/report/github.com/ankorstore/yokai/generate)
+[![codecov](https://codecov.io/gh/ankorstore/yokai/graph/badge.svg?token=5s0g5WyseS&flag=generate)](https://app.codecov.io/gh/ankorstore/yokai/tree/main/generate)
+[![PkgGoDev](https://pkg.go.dev/badge/github.com/ankorstore/yokai/generate)](https://pkg.go.dev/github.com/ankorstore/yokai/generate)
+
+> Generation module based on [Google UUID](https://github.com/google/uuid).
+
+<!-- TOC -->
+
+* [Installation](#installation)
+* [Documentation](#documentation)
+	* [UUID](#uuid)
+
+<!-- TOC -->
+
+## Installation
+
+```shell
+go get github.com/ankorstore/yokai/generate
+```
+
+## Documentation
+
+### UUID
+
+This module provides an [UuidGenerator](uuid/generator.go) interface, allowing to generate UUIDs.
+
+The `DefaultUuidGenerator` is based on [Google UUID](https://github.com/google/uuid).
+
+```go
+package main
+
+import (
+	"fmt"
+
+	"github.com/ankorstore/yokai/generate/uuid"
+	uuidtest "github.com/ankorstore/yokai/generate/generatetest/uuid"
+)
+
+func main() {
+	// default UUID generator
+	generator := uuid.NewDefaultUuidGenerator()
+	fmt.Printf("uuid: %s", generator.Generate()) // uuid: dcb5d8b3-4517-4957-a42c-604d11758561
+
+	// test UUID generator (with deterministic value for testing)
+	testGenerator := uuidtest.NewTestUuidGenerator("test")
+	fmt.Printf("uuid: %s", testGenerator.Generate()) // uuid: test
+}
+```
+
+The module also provides a [UuidGeneratorFactory](uuid/factory.go) interface, to create
+the [UuidGenerator](uuid/generator.go) instances.
+
+The `DefaultUuidGeneratorFactory` generates `DefaultUuidGenerator` instances.
+
+```go
+package main
+
+import (
+	"fmt"
+
+	"github.com/ankorstore/yokai/generate/uuid"
+)
+
+func main() {
+	// default UUID generator factory
+	generator := uuid.NewDefaultUuidGeneratorFactory().Create()
+	fmt.Printf("uuid: %s", generator.Generate()) // uuid: dcb5d8b3-4517-4957-a42c-604d11758561
+}
+```

generate/generatetest/uuid/generator.go

@@ -0,0 +1,27 @@
+package uuid
+
+// TestUuidGenerator is a [UuidGenerator] implementation allowing deterministic generations (for testing).
+type TestUuidGenerator struct {
+	value string
+}
+
+// NewTestUuidGenerator returns a [TestUuidGenerator], implementing [UuidGenerator].
+//
+// It accepts a value that will be used for deterministic generation results.
+func NewTestUuidGenerator(value string) *TestUuidGenerator {
+	return &TestUuidGenerator{
+		value: value,
+	}
+}
+
+// SetValue sets the value to use for deterministic generations.
+func (g *TestUuidGenerator) SetValue(value string) *TestUuidGenerator {
+	g.value = value
+
+	return g
+}
+
+// Generate returns the configured deterministic value.
+func (g *TestUuidGenerator) Generate() string {
+	return g.value
+}

generate/generatetest/uuid/generator_test.go

@@ -0,0 +1,38 @@
+package uuid_test
+
+import (
+	"testing"
+
+	uuidtest "github.com/ankorstore/yokai/generate/generatetest/uuid"
+	"github.com/ankorstore/yokai/generate/uuid"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestNewTestUuidGenerator(t *testing.T) {
+	t.Parallel()
+
+	generator := uuidtest.NewTestUuidGenerator("random")
+
+	assert.IsType(t, &uuidtest.TestUuidGenerator{}, generator)
+	assert.Implements(t, (*uuid.UuidGenerator)(nil), generator)
+}
+
+func TestGenerate(t *testing.T) {
+	t.Parallel()
+
+	generator := uuidtest.NewTestUuidGenerator("test")
+
+	value1 := generator.Generate()
+	value2 := generator.Generate()
+
+	assert.Equal(t, "test", value1)
+	assert.Equal(t, "test", value2)
+
+	generator.SetValue("other test")
+
+	value1 = generator.Generate()
+	value2 = generator.Generate()
+
+	assert.Equal(t, "other test", value1)
+	assert.Equal(t, "other test", value2)
+}

generate/go.mod

@@ -0,0 +1,14 @@
+module github.com/ankorstore/yokai/generate
+
+go 1.20
+
+require (
+	github.com/google/uuid v1.3.0
+	github.com/stretchr/testify v1.8.4
+)
+
+require (
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)

generate/go.sum

@@ -0,0 +1,12 @@
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/google/uuid v1.3.0 h1:t6JiXgmwXMjEs8VusXIJk2BXHsn+wx8BZdTaoZ5fu7I=
+github.com/google/uuid v1.3.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/testify v1.8.4 h1:CcVxjf3Q8PM0mHUKJCdn+eZZtm5yQwehR5yeSVQQcUk=
+github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

generate/uuid/factory.go

@@ -0,0 +1,22 @@
+package uuid
+
+// UuidGeneratorFactory is the interface for [UuidGenerator] factories.
+type UuidGeneratorFactory interface {
+	Create() UuidGenerator
+}
+
+// DefaultUuidGeneratorFactory is the default [UuidGeneratorFactory] implementation.
+type DefaultUuidGeneratorFactory struct{}
+
+// NewDefaultUuidGeneratorFactory returns a [DefaultUuidGeneratorFactory], implementing [UuidGeneratorFactory].
+func NewDefaultUuidGeneratorFactory() UuidGeneratorFactory {
+	return &DefaultUuidGeneratorFactory{}
+}
+
+// Create returns a new [UuidGenerator].
+// For example:
+//
+//	var generator, _ = uuid.NewDefaultConfigFactory().Create()
+func (g *DefaultUuidGeneratorFactory) Create() UuidGenerator {
+	return NewDefaultUuidGenerator()
+}

generate/uuid/factory_test.go

@@ -0,0 +1,40 @@
+package uuid_test
+
+import (
+	"testing"
+
+	"github.com/ankorstore/yokai/generate/uuid"
+	googleuuid "github.com/google/uuid"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestNewDefaultUuidGeneratorFactory(t *testing.T) {
+	t.Parallel()
+
+	factory := uuid.NewDefaultUuidGeneratorFactory()
+
+	assert.IsType(t, &uuid.DefaultUuidGeneratorFactory{}, factory)
+	assert.Implements(t, (*uuid.UuidGeneratorFactory)(nil), factory)
+}
+
+func TestCreate(t *testing.T) {
+	t.Parallel()
+
+	generator := uuid.NewDefaultUuidGeneratorFactory().Create()
+
+	value1 := generator.Generate()
+	value2 := generator.Generate()
+
+	assert.NotEqual(t, value1, value2)
+
+	parsedValue1, err := googleuuid.Parse(value1)
+	assert.NoError(t, err)
+
+	parsedValue2, err := googleuuid.Parse(value2)
+	assert.NoError(t, err)
+
+	assert.NotEqual(t, parsedValue1.String(), parsedValue2.String())
+
+	assert.Equal(t, value1, parsedValue1.String())
+	assert.Equal(t, value2, parsedValue2.String())
+}

generate/uuid/generator.go

@@ -0,0 +1,23 @@
+package uuid
+
+import googleuuid "github.com/google/uuid"
+
+// UuidGenerator is the interface for UUID generators.
+type UuidGenerator interface {
+	Generate() string
+}
+
+// DefaultUuidGenerator is the default [UuidGenerator] implementation.
+type DefaultUuidGenerator struct{}
+
+// NewDefaultUuidGenerator returns a [DefaultUuidGenerator], implementing [UuidGenerator].
+func NewDefaultUuidGenerator() *DefaultUuidGenerator {
+	return &DefaultUuidGenerator{}
+}
+
+// Generate returns a new UUID, using [Google UUID].
+//
+// [Google UUID]: https://github.com/google/uuid
+func (g *DefaultUuidGenerator) Generate() string {
+	return googleuuid.New().String()
+}