refactor(config): rename package _config to config with cfg alias

The config package used `package _config` with a leading underscore,
which is unconventional in Go. Rename to `package config` (matching the
directory name) and use `cfg` as the standard import alias across all
93 importing files.

server/api/api_server.go

@@ -2,7 +2,7 @@ package api
 
 import (
 	"context"
-	_config "erupe-ce/config"
+	cfg "erupe-ce/config"
 	"fmt"
 	"net/http"
 	"os"
@@ -19,14 +19,14 @@ import (
 type Config struct {
 	Logger      *zap.Logger
 	DB          *sqlx.DB
-	ErupeConfig *_config.Config
+	ErupeConfig *cfg.Config
 }
 
 // APIServer is Erupes Standard API interface
 type APIServer struct {
 	sync.Mutex
 	logger         *zap.Logger
-	erupeConfig    *_config.Config
+	erupeConfig    *cfg.Config
 	db             *sqlx.DB
 	httpServer     *http.Server
 	isShuttingDown bool

server/api/api_server_test.go

@@ -5,7 +5,7 @@ import (
 	"testing"
 	"time"
 
-	_config "erupe-ce/config"
+	cfg "erupe-ce/config"
 	"go.uber.org/zap"
 )
 
@@ -47,23 +47,23 @@ func TestNewAPIServerConfig(t *testing.T) {
 	logger := NewTestLogger(t)
 	defer func() { _ = logger.Sync() }()
 
-	cfg := &_config.Config{
-		API: _config.API{
+	cfg := &cfg.Config{
+		API: cfg.API{
 			Port:        9999,
 			PatchServer: "http://example.com",
-			Banners:     []_config.APISignBanner{},
-			Messages:    []_config.APISignMessage{},
-			Links:       []_config.APISignLink{},
+			Banners:     []cfg.APISignBanner{},
+			Messages:    []cfg.APISignMessage{},
+			Links:       []cfg.APISignLink{},
 		},
-		Screenshots: _config.ScreenshotsOptions{
+		Screenshots: cfg.ScreenshotsOptions{
 			Enabled:       false,
 			OutputDir:     "/custom/path",
 			UploadQuality: 95,
 		},
-		DebugOptions: _config.DebugOptions{
+		DebugOptions: cfg.DebugOptions{
 			MaxLauncherHR: true,
 		},
-		GameplayOptions: _config.GameplayOptions{
+		GameplayOptions: cfg.GameplayOptions{
 			MezFesSoloTickets: 200,
 		},
 	}

server/api/endpoints.go

@@ -6,7 +6,7 @@ import (
 	"encoding/xml"
 	"errors"
 	"erupe-ce/common/gametime"
-	_config "erupe-ce/config"
+	cfg "erupe-ce/config"
 	"fmt"
 	"image"
 	"image/jpeg"
@@ -35,9 +35,9 @@ const (
 // LauncherResponse is the JSON payload returned by the /launcher endpoint,
 // containing banners, messages, and links for the game launcher UI.
 type LauncherResponse struct {
-	Banners  []_config.APISignBanner  `json:"banners"`
-	Messages []_config.APISignMessage `json:"messages"`
-	Links    []_config.APISignLink    `json:"links"`
+	Banners  []cfg.APISignBanner  `json:"banners"`
+	Messages []cfg.APISignMessage `json:"messages"`
+	Links    []cfg.APISignLink    `json:"links"`
 }
 
 // User represents an authenticated user's session credentials and permissions.

server/api/endpoints_test.go

@@ -9,7 +9,7 @@ import (
 	"strings"
 	"testing"
 
-	_config "erupe-ce/config"
+	cfg "erupe-ce/config"
 	"erupe-ce/common/gametime"
 	"go.uber.org/zap"
 )
@@ -19,20 +19,20 @@ func TestLauncherEndpoint(t *testing.T) {
 	logger := NewTestLogger(t)
 	defer func() { _ = logger.Sync() }()
 
-	cfg := NewTestConfig()
-	cfg.API.Banners = []_config.APISignBanner{
+	c := NewTestConfig()
+	c.API.Banners = []cfg.APISignBanner{
 		{Src: "http://example.com/banner1.jpg", Link: "http://example.com"},
 	}
-	cfg.API.Messages = []_config.APISignMessage{
+	c.API.Messages = []cfg.APISignMessage{
 		{Message: "Welcome to Erupe", Date: 0, Kind: 0, Link: "http://example.com"},
 	}
-	cfg.API.Links = []_config.APISignLink{
+	c.API.Links = []cfg.APISignLink{
 		{Name: "Forum", Icon: "forum", Link: "http://forum.example.com"},
 	}
 
 	server := &APIServer{
 		logger:      logger,
-		erupeConfig: cfg,
+		erupeConfig: c,
 		db:          nil,
 	}
 
@@ -83,14 +83,14 @@ func TestLauncherEndpointEmptyConfig(t *testing.T) {
 	logger := NewTestLogger(t)
 	defer func() { _ = logger.Sync() }()
 
-	cfg := NewTestConfig()
-	cfg.API.Banners = []_config.APISignBanner{}
-	cfg.API.Messages = []_config.APISignMessage{}
-	cfg.API.Links = []_config.APISignLink{}
+	c := NewTestConfig()
+	c.API.Banners = []cfg.APISignBanner{}
+	c.API.Messages = []cfg.APISignMessage{}
+	c.API.Links = []cfg.APISignLink{}
 
 	server := &APIServer{
 		logger:      logger,
-		erupeConfig: cfg,
+		erupeConfig: c,
 	}
 
 	req := httptest.NewRequest("GET", "/launcher", nil)
@@ -119,10 +119,10 @@ func TestLoginEndpointInvalidJSON(t *testing.T) {
 	logger := NewTestLogger(t)
 	defer func() { _ = logger.Sync() }()
 
-	cfg := NewTestConfig()
+	c := NewTestConfig()
 	server := &APIServer{
 		logger:      logger,
-		erupeConfig: cfg,
+		erupeConfig: c,
 		db:          nil,
 	}
 
@@ -144,10 +144,10 @@ func TestLoginEndpointEmptyCredentials(t *testing.T) {
 	logger := NewTestLogger(t)
 	defer func() { _ = logger.Sync() }()
 
-	cfg := NewTestConfig()
+	c := NewTestConfig()
 	server := &APIServer{
 		logger:      logger,
-		erupeConfig: cfg,
+		erupeConfig: c,
 		db:          nil,
 	}
 
@@ -196,10 +196,10 @@ func TestRegisterEndpointInvalidJSON(t *testing.T) {
 	logger := NewTestLogger(t)
 	defer func() { _ = logger.Sync() }()
 
-	cfg := NewTestConfig()
+	c := NewTestConfig()
 	server := &APIServer{
 		logger:      logger,
-		erupeConfig: cfg,
+		erupeConfig: c,
 		db:          nil,
 	}
 
@@ -219,10 +219,10 @@ func TestRegisterEndpointEmptyCredentials(t *testing.T) {
 	logger := NewTestLogger(t)
 	defer func() { _ = logger.Sync() }()
 
-	cfg := NewTestConfig()
+	c := NewTestConfig()
 	server := &APIServer{
 		logger:      logger,
-		erupeConfig: cfg,
+		erupeConfig: c,
 		db:          nil,
 	}
 
@@ -267,10 +267,10 @@ func TestCreateCharacterEndpointInvalidJSON(t *testing.T) {
 	logger := NewTestLogger(t)
 	defer func() { _ = logger.Sync() }()
 
-	cfg := NewTestConfig()
+	c := NewTestConfig()
 	server := &APIServer{
 		logger:      logger,
-		erupeConfig: cfg,
+		erupeConfig: c,
 		db:          nil,
 	}
 
@@ -290,10 +290,10 @@ func TestDeleteCharacterEndpointInvalidJSON(t *testing.T) {
 	logger := NewTestLogger(t)
 	defer func() { _ = logger.Sync() }()
 
-	cfg := NewTestConfig()
+	c := NewTestConfig()
 	server := &APIServer{
 		logger:      logger,
-		erupeConfig: cfg,
+		erupeConfig: c,
 		db:          nil,
 	}
 
@@ -313,10 +313,10 @@ func TestExportSaveEndpointInvalidJSON(t *testing.T) {
 	logger := NewTestLogger(t)
 	defer func() { _ = logger.Sync() }()
 
-	cfg := NewTestConfig()
+	c := NewTestConfig()
 	server := &APIServer{
 		logger:      logger,
-		erupeConfig: cfg,
+		erupeConfig: c,
 		db:          nil,
 	}
 
@@ -336,12 +336,12 @@ func TestScreenShotEndpointDisabled(t *testing.T) {
 	logger := NewTestLogger(t)
 	defer func() { _ = logger.Sync() }()
 
-	cfg := NewTestConfig()
-	cfg.Screenshots.Enabled = false
+	c := NewTestConfig()
+	c.Screenshots.Enabled = false
 
 	server := &APIServer{
 		logger:      logger,
-		erupeConfig: cfg,
+		erupeConfig: c,
 		db:          nil,
 	}
 
@@ -375,10 +375,10 @@ func TestScreenShotGetInvalidToken(t *testing.T) {
 	logger := NewTestLogger(t)
 	defer func() { _ = logger.Sync() }()
 
-	cfg := NewTestConfig()
+	c := NewTestConfig()
 	server := &APIServer{
 		logger:      logger,
-		erupeConfig: cfg,
+		erupeConfig: c,
 		db:          nil,
 	}
 
@@ -415,14 +415,14 @@ func TestNewAuthDataStructure(t *testing.T) {
 	logger := NewTestLogger(t)
 	defer func() { _ = logger.Sync() }()
 
-	cfg := NewTestConfig()
-	cfg.DebugOptions.MaxLauncherHR = false
-	cfg.HideLoginNotice = false
-	cfg.LoginNotices = []string{"Notice 1", "Notice 2"}
+	c := NewTestConfig()
+	c.DebugOptions.MaxLauncherHR = false
+	c.HideLoginNotice = false
+	c.LoginNotices = []string{"Notice 1", "Notice 2"}
 
 	server := &APIServer{
 		logger:      logger,
-		erupeConfig: cfg,
+		erupeConfig: c,
 		db:          nil,
 	}
 
@@ -455,8 +455,8 @@ func TestNewAuthDataStructure(t *testing.T) {
 		t.Error("MezFes should not be nil")
 	}
 
-	if authData.PatchServer != cfg.API.PatchServer {
-		t.Errorf("PatchServer = %s, want %s", authData.PatchServer, cfg.API.PatchServer)
+	if authData.PatchServer != c.API.PatchServer {
+		t.Errorf("PatchServer = %s, want %s", authData.PatchServer, c.API.PatchServer)
 	}
 
 	if len(authData.Notices) == 0 {
@@ -471,12 +471,12 @@ func TestNewAuthDataDebugMode(t *testing.T) {
 	logger := NewTestLogger(t)
 	defer func() { _ = logger.Sync() }()
 
-	cfg := NewTestConfig()
-	cfg.DebugOptions.MaxLauncherHR = true
+	c := NewTestConfig()
+	c.DebugOptions.MaxLauncherHR = true
 
 	server := &APIServer{
 		logger:      logger,
-		erupeConfig: cfg,
+		erupeConfig: c,
 		db:          nil,
 	}
 
@@ -505,14 +505,14 @@ func TestNewAuthDataMezFesConfiguration(t *testing.T) {
 	logger := NewTestLogger(t)
 	defer func() { _ = logger.Sync() }()
 
-	cfg := NewTestConfig()
-	cfg.GameplayOptions.MezFesSoloTickets = 150
-	cfg.GameplayOptions.MezFesGroupTickets = 75
-	cfg.GameplayOptions.MezFesSwitchMinigame = true
+	c := NewTestConfig()
+	c.GameplayOptions.MezFesSoloTickets = 150
+	c.GameplayOptions.MezFesGroupTickets = 75
+	c.GameplayOptions.MezFesSwitchMinigame = true
 
 	server := &APIServer{
 		logger:      logger,
-		erupeConfig: cfg,
+		erupeConfig: c,
 		db:          nil,
 	}
 
@@ -539,13 +539,13 @@ func TestNewAuthDataHideNotices(t *testing.T) {
 	logger := NewTestLogger(t)
 	defer func() { _ = logger.Sync() }()
 
-	cfg := NewTestConfig()
-	cfg.HideLoginNotice = true
-	cfg.LoginNotices = []string{"Notice 1", "Notice 2"}
+	c := NewTestConfig()
+	c.HideLoginNotice = true
+	c.LoginNotices = []string{"Notice 1", "Notice 2"}
 
 	server := &APIServer{
 		logger:      logger,
-		erupeConfig: cfg,
+		erupeConfig: c,
 		db:          nil,
 	}
 
@@ -563,10 +563,10 @@ func TestNewAuthDataTimestamps(t *testing.T) {
 	logger := NewTestLogger(t)
 	defer func() { _ = logger.Sync() }()
 
-	cfg := NewTestConfig()
+	c := NewTestConfig()
 	server := &APIServer{
 		logger:      logger,
-		erupeConfig: cfg,
+		erupeConfig: c,
 		db:          nil,
 	}
 
@@ -588,10 +588,10 @@ func BenchmarkLauncherEndpoint(b *testing.B) {
 	logger, _ := zap.NewDevelopment()
 	defer func() { _ = logger.Sync() }()
 
-	cfg := NewTestConfig()
+	c := NewTestConfig()
 	server := &APIServer{
 		logger:      logger,
-		erupeConfig: cfg,
+		erupeConfig: c,
 	}
 
 	b.ResetTimer()
@@ -607,10 +607,10 @@ func BenchmarkNewAuthData(b *testing.B) {
 	logger, _ := zap.NewDevelopment()
 	defer func() { _ = logger.Sync() }()
 
-	cfg := NewTestConfig()
+	c := NewTestConfig()
 	server := &APIServer{
 		logger:      logger,
-		erupeConfig: cfg,
+		erupeConfig: c,
 	}
 
 	characters := make([]Character, 16)

server/api/test_helpers.go

@@ -3,7 +3,7 @@ package api
 import (
 	"testing"
 
-	_config "erupe-ce/config"
+	cfg "erupe-ce/config"
 	"go.uber.org/zap"
 )
 
@@ -17,24 +17,24 @@ func NewTestLogger(t *testing.T) *zap.Logger {
 }
 
 // NewTestConfig creates a default test configuration
-func NewTestConfig() *_config.Config {
-	return &_config.Config{
-		API: _config.API{
+func NewTestConfig() *cfg.Config {
+	return &cfg.Config{
+		API: cfg.API{
 			Port:        8000,
 			PatchServer: "http://localhost:8080",
-			Banners:     []_config.APISignBanner{},
-			Messages:    []_config.APISignMessage{},
-			Links:       []_config.APISignLink{},
+			Banners:     []cfg.APISignBanner{},
+			Messages:    []cfg.APISignMessage{},
+			Links:       []cfg.APISignLink{},
 		},
-		Screenshots: _config.ScreenshotsOptions{
+		Screenshots: cfg.ScreenshotsOptions{
 			Enabled:       true,
 			OutputDir:     "/tmp/screenshots",
 			UploadQuality: 85,
 		},
-		DebugOptions: _config.DebugOptions{
+		DebugOptions: cfg.DebugOptions{
 			MaxLauncherHR: false,
 		},
-		GameplayOptions: _config.GameplayOptions{
+		GameplayOptions: cfg.GameplayOptions{
 			MezFesSoloTickets:    100,
 			MezFesGroupTickets:   50,
 			MezFesDuration:       604800, // 1 week