fix: proper configuration handling across submodules

internal/config/config.go

@@ -8,57 +8,51 @@ import (
 	"github.com/redis/go-redis/v9"
 )
 
-var (
-	// Global variables that need to be accessible across packages
+type Config struct {
 	Ctx                 context.Context
 	KV                  *redis.Client
-	Client              http.Client
-	Cookies             http.CookieJar
+	Client              *http.Client
 	IsDevelopment       bool
 	BaseURL             string
 	Environment         string
 	CentralTimeLocation *time.Location
-	IsClosing           bool = false
-)
+}
 
 const (
-	ICalTimestampFormatUtc   = "20060102T150405Z"
-	ICalTimestampFormatLocal = "20060102T150405"
-	CentralTimezoneName      = "America/Chicago"
+	CentralTimezoneName = "America/Chicago"
 )
 
-func init() {
-	Ctx = context.Background()
+func New() (*Config, error) {
+	ctx := context.Background()
 
-	var err error
-	CentralTimeLocation, err = time.LoadLocation(CentralTimezoneName)
+	loc, err := time.LoadLocation(CentralTimezoneName)
 	if err != nil {
-		panic(err)
+		return nil, err
 	}
+
+	return &Config{
+		Ctx:                 ctx,
+		CentralTimeLocation: loc,
+	}, nil
 }
 
 // SetBaseURL sets the base URL for API requests
-func SetBaseURL(url string) {
-	BaseURL = url
+func (c *Config) SetBaseURL(url string) {
+	c.BaseURL = url
 }
 
 // SetEnvironment sets the environment
-func SetEnvironment(env string) {
-	Environment = env
-	IsDevelopment = env == "development"
+func (c *Config) SetEnvironment(env string) {
+	c.Environment = env
+	c.IsDevelopment = env == "development"
 }
 
 // SetClient sets the HTTP client
-func SetClient(c http.Client) {
-	Client = c
-}
-
-// SetCookies sets the cookie jar
-func SetCookies(cj http.CookieJar) {
-	Cookies = cj
+func (c *Config) SetClient(client *http.Client) {
+	c.Client = client
 }
 
 // SetRedis sets the Redis client
-func SetRedis(r *redis.Client) {
-	KV = r
+func (c *Config) SetRedis(r *redis.Client) {
+	c.KV = r
 }