From 5b8c5d81d5dc9c51920d99b122908c5e92af8183 Mon Sep 17 00:00:00 2001
From: nutcas3 <mauricee423@gmail.com>
Date: Tue, 14 Apr 2026 15:50:08 +0300
Subject: [PATCH] feat: Add configuration management for api-server

- Add Config struct with server, database, Redis, IMSI, and ES2+ settings
- Add ServerConfig with port and timeout settings (30s read/write)
- Add DatabaseConfig for PostgreSQL connection parameters
- Add RedisConfig for cache connection settings
- Add IMSIConfig with France MCC+MNC prefix (20893) and IMSI range
- Add ES2Config for eSIM provisioning with SMDP connection parameters
- Add LoadConfig function with default configuration values
- Include JSON
---
 apps/api-server/internal/config/config.go | 83 +++++++++++++++++++++++
 1 file changed, 83 insertions(+)
 create mode 100644 apps/api-server/internal/config/config.go

diff --git a/apps/api-server/internal/config/config.go b/apps/api-server/internal/config/config.go
new file mode 100644
index 0000000..10d412d
--- /dev/null
+++ b/apps/api-server/internal/config/config.go
@@ -0,0 +1,83 @@
+package config
+
+import (
+	"time"
+)
+
+type Config struct {
+	Server   ServerConfig   `json:"server"`
+	Database DatabaseConfig `json:"database"`
+	Redis    RedisConfig    `json:"redis"`
+	IMSI     IMSIConfig      `json:"imsi"`
+	ES2      ES2Config       `json:"es2"`
+}
+
+type ServerConfig struct {
+	Port         string        `json:"port"`
+	ReadTimeout  time.Duration `json:"read_timeout"`
+	WriteTimeout time.Duration `json:"write_timeout"`
+}
+
+type DatabaseConfig struct {
+	Host     string `json:"host"`
+	Port     string `json:"port"`
+	Database string `json:"database"`
+	Username string `json:"username"`
+	Password string `json:"password"`
+	SSLMode  string `json:"ssl_mode"`
+}
+
+type RedisConfig struct {
+	Host     string `json:"host"`
+	Port     string `json:"port"`
+	Password string `json:"password"`
+	DB       int    `json:"db"`
+}
+
+type IMSIConfig struct {
+	Prefix string `json:"prefix"`
+	MinIMSI uint64 `json:"min_imsi"`
+	MaxIMSI uint64 `json:"max_imsi"`
+}
+
+type ES2Config struct {
+	BaseURL              string `json:"base_url"`
+	APIKey               string `json:"api_key"`
+	InsecureSkipVerify   bool   `json:"insecure_skip_verify"`
+	FunctionalityRequesterID string `json:"functionality_requester_id"`
+}
+
+func LoadConfig() *Config {
+	return &Config{
+		Server: ServerConfig{
+			Port:         "8000",
+			ReadTimeout:  30 * time.Second,
+			WriteTimeout: 30 * time.Second,
+		},
+		Database: DatabaseConfig{
+			Host:     "localhost",
+			Port:     "5432",
+			Database: "telecom_platform",
+			Username: "postgres",
+			Password: "password",
+			SSLMode:  "disable",
+		},
+		Redis: RedisConfig{
+			Host:     "localhost",
+			Port:     "6379",
+			Password: "",
+			DB:       0,
+		},
+		IMSI: IMSIConfig{
+			Prefix: "20893", // France MCC+MNC
+			MinIMSI: 1,
+			MaxIMSI: 999999999,
+		},
+		ES2: ES2Config{
+			BaseURL:                "https://smdp.example.com",
+			APIKey:                 "",
+			InsecureSkipVerify:     true,
+			FunctionalityRequesterID: "telecom-platform",
+		},
+	}
+}