first commit

.gitignore

@@ -0,0 +1,2 @@
+.env
+.idea

db/sqlc/migrations/001_create_identifiers.down.sql

@@ -0,0 +1,5 @@
+DROP INDEX IF EXISTS idx_identifiers_created_at;
+DROP INDEX IF EXISTS idx_identifiers_slug;
+
+DROP TABLE IF EXISTS identifiers;
+

db/sqlc/migrations/001_create_identifiers.up.sql

@@ -0,0 +1,12 @@
+CREATE TABLE identifiers (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    slug VARCHAR(255) UNIQUE NOT NULL,
+    created_at TIMESTAMP NOT NULL DEFAULT NOW(),
+    updated_at TIMESTAMP NOT NULL DEFAULT NOW()
+);
+
+CREATE INDEX idx_identifiers_created_at
+    ON identifiers(created_at);
+
+CREATE INDEX idx_identifiers_slug
+    ON identifiers(slug);

db/sqlc/queries/query.sql

@@ -0,0 +1,34 @@
+-- name: CreateIdentifier :one
+INSERT INTO identifiers (slug)
+VALUES ($1)
+RETURNING id, slug, created_at, updated_at;
+
+-- name: GetIdentifierById :one
+SELECT id, slug, created_at, updated_at
+FROM identifiers
+WHERE id = $1;
+
+-- name: GetIdentifierBySlug :one
+SELECT id, slug, created_at, updated_at
+FROM identifiers
+WHERE slug = $1;
+
+-- name: ListIdentifiers :many
+SELECT id, slug, created_at, updated_at
+FROM identifiers
+ORDER BY created_at DESC
+LIMIT $1 OFFSET $2;
+
+-- name: DeleteIdentifier :exec
+DELETE FROM identifiers
+WHERE id = $1;
+
+-- name: UpdateIdentifierSlug :one
+UPDATE identifiers
+SET slug = $2, updated_at = NOW()
+WHERE id = $1
+RETURNING id, slug, created_at, updated_at;
+
+-- name: CountIdentifiers :one
+SELECT COUNT(*) FROM identifiers;
+

db/sqlc/repository/db.go

@@ -0,0 +1,32 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.27.0
+
+package repository
+
+import (
+	"context"
+
+	"github.com/jackc/pgx/v5"
+	"github.com/jackc/pgx/v5/pgconn"
+)
+
+type DBTX interface {
+	Exec(context.Context, string, ...interface{}) (pgconn.CommandTag, error)
+	Query(context.Context, string, ...interface{}) (pgx.Rows, error)
+	QueryRow(context.Context, string, ...interface{}) pgx.Row
+}
+
+func New(db DBTX) *Queries {
+	return &Queries{db: db}
+}
+
+type Queries struct {
+	db DBTX
+}
+
+func (q *Queries) WithTx(tx pgx.Tx) *Queries {
+	return &Queries{
+		db: tx,
+	}
+}

db/sqlc/repository/models.go

@@ -0,0 +1,17 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.27.0
+
+package repository
+
+import (
+	"github.com/google/uuid"
+	"github.com/jackc/pgx/v5/pgtype"
+)
+
+type Identifier struct {
+	ID        uuid.UUID
+	Slug      string
+	CreatedAt pgtype.Timestamp
+	UpdatedAt pgtype.Timestamp
+}

db/sqlc/repository/query.sql.go

@@ -0,0 +1,148 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.27.0
+// source: query.sql
+
+package repository
+
+import (
+	"context"
+
+	"github.com/google/uuid"
+)
+
+const countIdentifiers = `-- name: CountIdentifiers :one
+SELECT COUNT(*) FROM identifiers
+`
+
+func (q *Queries) CountIdentifiers(ctx context.Context) (int64, error) {
+	row := q.db.QueryRow(ctx, countIdentifiers)
+	var count int64
+	err := row.Scan(&count)
+	return count, err
+}
+
+const createIdentifier = `-- name: CreateIdentifier :one
+INSERT INTO identifiers (slug)
+VALUES ($1)
+RETURNING id, slug, created_at, updated_at
+`
+
+func (q *Queries) CreateIdentifier(ctx context.Context, slug string) (Identifier, error) {
+	row := q.db.QueryRow(ctx, createIdentifier, slug)
+	var i Identifier
+	err := row.Scan(
+		&i.ID,
+		&i.Slug,
+		&i.CreatedAt,
+		&i.UpdatedAt,
+	)
+	return i, err
+}
+
+const deleteIdentifier = `-- name: DeleteIdentifier :exec
+DELETE FROM identifiers
+WHERE id = $1
+`
+
+func (q *Queries) DeleteIdentifier(ctx context.Context, id uuid.UUID) error {
+	_, err := q.db.Exec(ctx, deleteIdentifier, id)
+	return err
+}
+
+const getIdentifierById = `-- name: GetIdentifierById :one
+SELECT id, slug, created_at, updated_at
+FROM identifiers
+WHERE id = $1
+`
+
+func (q *Queries) GetIdentifierById(ctx context.Context, id uuid.UUID) (Identifier, error) {
+	row := q.db.QueryRow(ctx, getIdentifierById, id)
+	var i Identifier
+	err := row.Scan(
+		&i.ID,
+		&i.Slug,
+		&i.CreatedAt,
+		&i.UpdatedAt,
+	)
+	return i, err
+}
+
+const getIdentifierBySlug = `-- name: GetIdentifierBySlug :one
+SELECT id, slug, created_at, updated_at
+FROM identifiers
+WHERE slug = $1
+`
+
+func (q *Queries) GetIdentifierBySlug(ctx context.Context, slug string) (Identifier, error) {
+	row := q.db.QueryRow(ctx, getIdentifierBySlug, slug)
+	var i Identifier
+	err := row.Scan(
+		&i.ID,
+		&i.Slug,
+		&i.CreatedAt,
+		&i.UpdatedAt,
+	)
+	return i, err
+}
+
+const listIdentifiers = `-- name: ListIdentifiers :many
+SELECT id, slug, created_at, updated_at
+FROM identifiers
+ORDER BY created_at DESC
+LIMIT $1 OFFSET $2
+`
+
+type ListIdentifiersParams struct {
+	Limit  int32
+	Offset int32
+}
+
+func (q *Queries) ListIdentifiers(ctx context.Context, arg ListIdentifiersParams) ([]Identifier, error) {
+	rows, err := q.db.Query(ctx, listIdentifiers, arg.Limit, arg.Offset)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	var items []Identifier
+	for rows.Next() {
+		var i Identifier
+		if err := rows.Scan(
+			&i.ID,
+			&i.Slug,
+			&i.CreatedAt,
+			&i.UpdatedAt,
+		); err != nil {
+			return nil, err
+		}
+		items = append(items, i)
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+	return items, nil
+}
+
+const updateIdentifierSlug = `-- name: UpdateIdentifierSlug :one
+UPDATE identifiers
+SET slug = $2, updated_at = NOW()
+WHERE id = $1
+RETURNING id, slug, created_at, updated_at
+`
+
+type UpdateIdentifierSlugParams struct {
+	ID   uuid.UUID
+	Slug string
+}
+
+func (q *Queries) UpdateIdentifierSlug(ctx context.Context, arg UpdateIdentifierSlugParams) (Identifier, error) {
+	row := q.db.QueryRow(ctx, updateIdentifierSlug, arg.ID, arg.Slug)
+	var i Identifier
+	err := row.Scan(
+		&i.ID,
+		&i.Slug,
+		&i.CreatedAt,
+		&i.UpdatedAt,
+	)
+	return i, err
+}

db/sqlc/sqlc.yaml

@@ -0,0 +1,26 @@
+version: "2"
+sql:
+  - engine: "postgresql"
+    queries: "queries"
+    schema: "migrations"
+    gen:
+      go:
+        package: "repository"
+        out: "repository"
+        sql_package: "pgx/v5"
+        overrides:
+          - db_type: "uuid"
+            go_type:
+              import: "github.com/google/uuid"
+              type: "UUID"
+          - db_type: "uuid"
+            go_type:
+              import: "github.com/google/uuid"
+              type: "UUID"
+              pointer: true
+            nullable: true
+          - db_type: "timestamptz"
+            go_type:
+              type: "*time.Time"
+              pointer: true
+            nullable: true

go.mod

@@ -0,0 +1,21 @@
+module git.fossy.my.id/bagas/tunnel-please-controller
+
+go 1.25.5
+
+require (
+	git.fossy.my.id/bagas/tunnel-please-grpc v1.0.0
+	github.com/google/uuid v1.6.0
+	github.com/jackc/pgx/v5 v5.8.0
+	github.com/joho/godotenv v1.5.1
+	google.golang.org/grpc v1.78.0
+	google.golang.org/protobuf v1.36.11
+)
+
+require (
+	github.com/jackc/pgpassfile v1.0.0 // indirect
+	github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 // indirect
+	golang.org/x/net v0.47.0 // indirect
+	golang.org/x/sys v0.38.0 // indirect
+	golang.org/x/text v0.31.0 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20251029180050-ab9386a59fda // indirect
+)

go.sum

@@ -0,0 +1,64 @@
+git.fossy.my.id/bagas/tunnel-please-grpc v1.0.0 h1:G9U7YmfMBeTK8ASbqdBCmkrRsCNU3e6RUzGaTmg1NB0=
+git.fossy.my.id/bagas/tunnel-please-grpc v1.0.0/go.mod h1:fG+VkArdkceGB0bNA7IFQus9GetLAwdF5Oi4jdMlXtY=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+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/go-logr/logr v1.4.3 h1:CjnDlHq8ikf6E492q6eKboGOC0T8CDaOvkHCIg8idEI=
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+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
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main.go

@@ -0,0 +1,44 @@
+package main
+
+import (
+	"context"
+	"log"
+	"os"
+
+	"git.fossy.my.id/bagas/tunnel-please-controller/db/sqlc/repository"
+	"git.fossy.my.id/bagas/tunnel-please-controller/server"
+	"github.com/jackc/pgx/v5"
+	"github.com/joho/godotenv"
+)
+
+func main() {
+	if _, err := os.Stat(".env"); err == nil {
+		if err := godotenv.Load(".env"); err != nil {
+			log.Printf("Warning: Failed to load .env file: %s", err)
+		}
+	}
+
+	ctx := context.Background()
+
+	connect, err := pgx.Connect(ctx, os.Getenv("DATABASE_URL"))
+	if err != nil {
+		panic(err)
+		return
+	}
+	defer func(connect *pgx.Conn, ctx context.Context) {
+		err := connect.Close(ctx)
+		if err != nil {
+			panic(err)
+		}
+	}(connect, ctx)
+
+	repo := repository.New(connect)
+	s := server.New(repo)
+
+	log.Printf("Listening on :8080\n")
+	err = s.ListenAndServe(":8080")
+	if err != nil {
+		panic(err)
+		return
+	}
+}

server/server.go

@@ -0,0 +1,79 @@
+package server
+
+import (
+	"context"
+	"log"
+	mathrand "math/rand"
+	"net"
+	"strings"
+	"time"
+
+	"git.fossy.my.id/bagas/tunnel-please-controller/db/sqlc/repository"
+	identifier "git.fossy.my.id/bagas/tunnel-please-grpc/gen"
+	"github.com/google/uuid"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/reflection"
+	"google.golang.org/protobuf/types/known/emptypb"
+)
+
+type Server struct {
+	Database *repository.Queries
+	identifier.UnimplementedIdentityServer
+}
+
+func (s *Server) Get(ctx context.Context, request *identifier.IdentifierRequest) (*identifier.IdentifierResponse, error) {
+	parse, err := uuid.Parse(request.GetId())
+	if err != nil {
+		return nil, err
+	}
+	data, err := s.Database.GetIdentifierById(ctx, parse)
+	if err != nil {
+		return nil, err
+	}
+	return &identifier.IdentifierResponse{
+		Id:   data.ID.String(),
+		Slug: data.Slug,
+	}, nil
+}
+
+func (s *Server) Create(ctx context.Context, request *emptypb.Empty) (*identifier.IdentifierResponse, error) {
+	createIdentifier, err := s.Database.CreateIdentifier(ctx, GenerateRandomString(32))
+	if err != nil {
+		return nil, err
+	}
+	return &identifier.IdentifierResponse{
+		Id:   createIdentifier.ID.String(),
+		Slug: createIdentifier.Slug,
+	}, nil
+}
+
+func GenerateRandomString(length int) string {
+	const charset = "abcdefghijklmnopqrstuvwxyz"
+	seededRand := mathrand.New(mathrand.NewSource(time.Now().UnixNano() + int64(mathrand.Intn(9999))))
+	var result strings.Builder
+	for i := 0; i < length; i++ {
+		randomIndex := seededRand.Intn(len(charset))
+		result.WriteString(string(charset[randomIndex]))
+	}
+	return result.String()
+}
+
+func New(database *repository.Queries) *Server {
+	return &Server{Database: database}
+}
+
+func (s *Server) ListenAndServe(Addr string) error {
+	listener, err := net.Listen("tcp", Addr)
+	if err != nil {
+		return err
+	}
+
+	grpcServer := grpc.NewServer()
+	reflection.Register(grpcServer)
+
+	identifier.RegisterIdentityServer(grpcServer, s)
+	if err := grpcServer.Serve(listener); err != nil {
+		log.Fatalf("failed to serve: %v", err)
+	}
+	return nil
+}