introduce DDD directory structure

.golangci.yml

@@ -25,10 +25,10 @@ linters:
     - durationcheck
     - errorlint
     - exhaustive
-    - exhaustivestruct
+    #- exhaustivestruct
     - exportloopref
     - forcetypeassert
-    - funlen
+    # - funlen
     - gci
     - gochecknoglobals
     - gochecknoinits
@@ -55,3 +55,9 @@ linters:
     - unparam
     - wastedassign
     - whitespace
+linters-settings:
+  tagliatelle:
+    case:
+      use-field-name: true
+      rules:
+        json: snake

config/config.go

@@ -0,0 +1,25 @@
+// Package config get setting from environment variable or configuration file.
+package config
+
+// Config represents configuration information for the leadtime CLI command.
+// For example, include GitHub API access information.
+type Config struct {
+	// GitHubAccessToken is access token for GitHub API.
+	GitHubAccessToken string
+}
+
+// Argument represents the argument for leadtime CLI startup.
+type Argument struct {
+	// GitHubOwner is GitHun owner name(e.g. nao1215)
+	GitHubOwner string
+	// GitHubRepository is GitHub repository name(e.g. leadtime)
+	GitHubRepository string
+}
+
+// NewArgument initialize Argument struct.
+func NewArgument(owner, repo string) *Argument {
+	return &Argument{
+		GitHubOwner:      owner,
+		GitHubRepository: repo,
+	}
+}

config/config_test.go

@@ -0,0 +1,25 @@
+// Package config get setting from environment variable or configuration file.
+package config
+
+import (
+	"testing"
+
+	"github.com/google/go-cmp/cmp"
+)
+
+func TestNewArgument(t *testing.T) {
+	t.Parallel()
+	t.Run("new argument", func(t *testing.T) {
+		t.Parallel()
+
+		want := &Argument{
+			GitHubOwner:      "nao1215",
+			GitHubRepository: "leadtime",
+		}
+
+		got := NewArgument(want.GitHubOwner, want.GitHubRepository)
+		if diff := cmp.Diff(want, got); diff != "" {
+			t.Errorf("mismatch (-want +got):\n%s", diff)
+		}
+	})
+}

domain/model/github.go

@@ -0,0 +1,22 @@
+// Package model is domain model and business logic.
+package model
+
+// Repository represents GitHub repository information
+type Repository struct {
+	// ID is repository id
+	ID *int64 `json:"id,omitempty"`
+	// Owner is repository owner
+	Owner *User `json:"owner,omitempty"`
+	// Name is repository name
+	Name *string `json:"name,omitempty"`
+	// FullName is repository full name
+	FullName *string `json:"full_name,omitempty"`
+	// Description is repository description
+	Description *string `json:"description,omitempty"`
+}
+
+// User represents a GitHub user.
+type User struct {
+	// Name is user name.
+	Name *string `json:"name,omitempty"`
+}

go.mod

@@ -1,3 +1,18 @@
 module github.com/nao1215/leadtime
 
 go 1.20
+
+require (
+	github.com/google/go-cmp v0.5.9
+	github.com/google/go-github/v50 v50.0.0
+	golang.org/x/oauth2 v0.5.0
+)
+
+require (
+	github.com/golang/protobuf v1.5.2 // indirect
+	github.com/google/go-querystring v1.1.0 // indirect
+	golang.org/x/crypto v0.0.0-20210817164053-32db794688a5 // indirect
+	golang.org/x/net v0.6.0 // indirect
+	google.golang.org/appengine v1.6.7 // indirect
+	google.golang.org/protobuf v1.28.0 // indirect
+)

go.sum

@@ -0,0 +1,31 @@
+github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
+github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
+github.com/golang/protobuf v1.5.2 h1:ROPKBNFfQgOUMifHyP+KYbvpjbdoFNs+aK7DXlji0Tw=
+github.com/golang/protobuf v1.5.2/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
+github.com/google/go-cmp v0.5.2/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/google/go-cmp v0.5.9 h1:O2Tfq5qg4qc4AmwVlvv0oLiVAGB7enBSJ2x2DqQFi38=
+github.com/google/go-cmp v0.5.9/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
+github.com/google/go-github/v50 v50.0.0 h1:gdO1AeuSZZK4iYWwVbjni7zg8PIQhp7QfmPunr016Jk=
+github.com/google/go-github/v50 v50.0.0/go.mod h1:Ev4Tre8QoKiolvbpOSG3FIi4Mlon3S2Nt9W5JYqKiwA=
+github.com/google/go-querystring v1.1.0 h1:AnCroh3fv4ZBgVIf1Iwtovgjaw/GiKJo8M8yD/fhyJ8=
+github.com/google/go-querystring v1.1.0/go.mod h1:Kcdr2DB4koayq7X8pmAG4sNG59So17icRSOU623lUBU=
+golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/crypto v0.0.0-20210817164053-32db794688a5 h1:HWj/xjIHfjYU5nVXpTM0s39J9CbLn7Cc5a7IC5rwsMQ=
+golang.org/x/crypto v0.0.0-20210817164053-32db794688a5/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
+golang.org/x/net v0.0.0-20190603091049-60506f45cf65/go.mod h1:HSz+uSET+XFnRR8LxR5pz3Of3rY3CfYBVs4xY44aLks=
+golang.org/x/net v0.6.0 h1:L4ZwwTvKW9gr0ZMS1yrHD9GZhIuVjOBBnaKH+SPQK0Q=
+golang.org/x/net v0.6.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
+golang.org/x/oauth2 v0.5.0 h1:HuArIo48skDwlrvM3sEdHXElYslAMsf3KwRkkW4MC4s=
+golang.org/x/oauth2 v0.5.0/go.mod h1:9/XBHVqLaWO3/BRHs5jbpYCnOZVjj5V0ndyaAM7KB4I=
+golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
+golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+google.golang.org/appengine v1.6.7 h1:FZR1q0exgwxzPzp/aF+VccGrSfxfPpkBqjIIEq3ru6c=
+google.golang.org/appengine v1.6.7/go.mod h1:8WjMMxjGQR8xUklV/ARdw2HLXBOI7O7uCIDZVag1xfc=
+google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
+google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
+google.golang.org/protobuf v1.28.0 h1:w43yiav+6bVFTBQFZX0r7ipe9JQ1QsbMgHwbBziscLw=
+google.golang.org/protobuf v1.28.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=

infrastructure/github/error.go

@@ -0,0 +1,16 @@
+package github
+
+import "fmt"
+
+// APIError is error for GitHub API.
+type APIError struct {
+	// StatusCode is HTTP status code from GitHub.
+	StatusCode int
+	// Message is error message
+	Message string
+}
+
+// Error return string that represents a GitHub API error
+func (e *APIError) Error() string {
+	return fmt.Sprintf("GitHub API error: status code %d, message: %s", e.StatusCode, e.Message)
+}

infrastructure/github/error_test.go

@@ -0,0 +1,43 @@
+package github
+
+import (
+	"net/http"
+	"testing"
+)
+
+func TestAPIError_Error(t *testing.T) {
+	t.Parallel()
+
+	type fields struct {
+		StatusCode int
+		Message    string
+	}
+	tests := []struct {
+		name   string
+		fields fields
+		want   string
+	}{
+		{
+			name: "Get 401 error",
+			fields: fields{
+				StatusCode: http.StatusUnauthorized,
+				Message:    "unauthorized",
+			},
+			want: "GitHub API error: status code 401, message: unauthorized",
+		},
+	}
+	for _, tt := range tests {
+		tt := tt
+		t.Run(tt.name, func(t *testing.T) {
+			t.Parallel()
+
+			e := &APIError{
+				StatusCode: tt.fields.StatusCode,
+				Message:    tt.fields.Message,
+			}
+			if got := e.Error(); got != tt.want {
+				t.Errorf("APIError.Error() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}

infrastructure/github/github.go

@@ -0,0 +1,52 @@
+// Package github is http client for GitHub API.
+// This package is wrapper for google/go-github package.
+package github
+
+import (
+	"context"
+
+	"github.com/google/go-github/v50/github"
+	"github.com/nao1215/leadtime/domain/model"
+	"golang.org/x/oauth2"
+)
+
+// Client is http client for GitHub API.
+type Client struct {
+	// client is http client
+	client *github.Client
+}
+
+// NewClient return http client for GitHub API.
+func NewClient(token string) *Client {
+	tokenSource := oauth2.StaticTokenSource(
+		&oauth2.Token{AccessToken: token},
+	)
+	client := oauth2.NewClient(context.Background(), tokenSource)
+
+	return &Client{client: github.NewClient(client)}
+}
+
+// ListRepositories return List the repositories for a user.
+func (c *Client) ListRepositories(ctx context.Context) ([]*model.Repository, error) {
+	repos, resp, err := c.client.Repositories.List(ctx, "", nil)
+	if resp != nil {
+		defer resp.Body.Close()
+	}
+	if err != nil {
+		return nil, &APIError{StatusCode: resp.StatusCode, Message: "failed to gey repository list"}
+	}
+
+	repoList := make([]*model.Repository, 0)
+	for _, v := range repos {
+		repo := &model.Repository{
+			ID:          v.ID,
+			Owner:       &model.User{Name: v.Owner.Name},
+			Name:        v.Name,
+			FullName:    v.FullName,
+			Description: v.Description,
+		}
+		repoList = append(repoList, repo)
+	}
+
+	return repoList, nil
+}